--- /dev/null
+/*
+ * device driver for Techwell 68xx based cards
+ *
+ * Much of this code is derived from the cx88 and sa7134 drivers, which
+ * were in turn derived from the bt87x driver. The original work was by
+ * Gerd Knorr; more recently the code was enhanced by Mauro Carvalho Chehab,
+ * Hans Verkuil, Andy Walls and many others. Their work is gratefully
+ * acknowledged. Full credit goes to them - any problems within this code
+ * are mine.
+ *
+ * Copyright (C) 2009 William M. Brack <wbrack@mmm.com.hk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/i2c.h> /* must appear before i2c-algo-bit.h */
+#include <linux/i2c-algo-bit.h>
+
+#include <media/v4l2-common.h>
+#include <media/tveeprom.h>
+
+#include "tw68.h"
+#include "tw68-reg.h"
+
+/* commly used strings */
+#if 0
+static char name_mute[] = "mute";
+static char name_radio[] = "Radio";
+static char name_tv[] = "Television";
+static char name_tv_mono[] = "TV (mono only)";
+static char name_svideo[] = "S-Video";
+static char name_comp[] = "Composite";
+#endif
+static char name_comp1[] = "Composite1";
+static char name_comp2[] = "Composite2";
+static char name_comp3[] = "Composite3";
+static char name_comp4[] = "Composite4";
+
+/* ------------------------------------------------------------------ */
+/* board config info */
+
+/* If radio_type !=UNSET, radio_addr should be specified
+ */
+
+struct tw68_board tw68_boards[] = {
+ [TW68_BOARD_UNKNOWN] = {
+ .name = "GENERIC",
+ .tuner_type = TUNER_ABSENT,
+ .radio_type = UNSET,
+ .tuner_addr = ADDR_UNSET,
+ .radio_addr = ADDR_UNSET,
+
+ .inputs = {
+ {
+ .name = name_comp1,
+ .vmux = 0,
+ }, {
+ .name = name_comp2,
+ .vmux = 1,
+ }, {
+ .name = name_comp3,
+ .vmux = 2,
+ }, {
+ .name = name_comp4,
+ .vmux = 3,
+ }, { /* Must have a NULL entry at end of list */
+ .name = NULL,
+ .vmux = 0,
+ }
+ },
+ },
+};
+
+const unsigned int tw68_bcount = ARRAY_SIZE(tw68_boards);
+
+/*
+ * Please add any new PCI IDs to: http://pci-ids.ucw.cz. This keeps
+ * the PCI ID database up to date. Note that the entries must be
+ * added under vendor 0x1797 (Techwell Inc.) as subsystem IDs.
+ */
+struct pci_device_id tw68_pci_tbl[] = {
+ {
+ .vendor = PCI_VENDOR_ID_TECHWELL,
+ .device = PCI_DEVICE_ID_6800,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .driver_data = TW68_BOARD_UNKNOWN,
+ }, {
+ .vendor = PCI_VENDOR_ID_TECHWELL,
+ .device = PCI_DEVICE_ID_6801,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .driver_data = TW68_BOARD_UNKNOWN,
+ }, {
+ .vendor = PCI_VENDOR_ID_TECHWELL,
+ .device = PCI_DEVICE_ID_6804,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .driver_data = TW68_BOARD_UNKNOWN,
+ }, {
+ .vendor = PCI_VENDOR_ID_TECHWELL,
+ .device = PCI_DEVICE_ID_6816_1,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .driver_data = TW68_BOARD_UNKNOWN,
+ }, {
+ .vendor = PCI_VENDOR_ID_TECHWELL,
+ .device = PCI_DEVICE_ID_6816_2,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .driver_data = TW68_BOARD_UNKNOWN,
+ }, {
+ .vendor = PCI_VENDOR_ID_TECHWELL,
+ .device = PCI_DEVICE_ID_6816_3,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .driver_data = TW68_BOARD_UNKNOWN,
+ }, {
+ .vendor = PCI_VENDOR_ID_TECHWELL,
+ .device = PCI_DEVICE_ID_6816_4,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .driver_data = TW68_BOARD_UNKNOWN,
+ }, {
+ /* end of list */
+ }
+};
+MODULE_DEVICE_TABLE(pci, tw68_pci_tbl);
+
+/* ------------------------------------------------------------ */
+/* stuff done before i2c enabled */
+int tw68_board_init1(struct tw68_dev *dev)
+{
+ /* Clear GPIO outputs */
+ tw_writel(TW68_GPOE, 0);
+ /* Remainder of setup according to board ID */
+ switch (dev->board) {
+ case TW68_BOARD_UNKNOWN:
+ printk(KERN_INFO "%s: Unable to determine board type, "
+ "using generic values\n", dev->name);
+ break;
+ }
+ dev->input = dev->hw_input = &card_in(dev,0);
+ return 0;
+}
+
+int tw68_tuner_setup(struct tw68_dev *dev)
+{
+ return 0;
+}
+
+/* stuff which needs working i2c */
+int tw68_board_init2(struct tw68_dev *dev)
+{
+ return 0;
+}
+
+
--- /dev/null
+/*
+ * tw68-core.c
+ * Core functions for the Techwell 68xx driver
+ *
+ * Much of this code is derived from the cx88 and sa7134 drivers, which
+ * were in turn derived from the bt87x driver. The original work was by
+ * Gerd Knorr; more recently the code was enhanced by Mauro Carvalho Chehab,
+ * Hans Verkuil, Andy Walls and many others. Their work is gratefully
+ * acknowledged. Full credit goes to them - any problems within this code
+ * are mine.
+ *
+ * Copyright (C) 2009 William M. Brack <wbrack@mmm.com.hk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/kmod.h>
+#include <linux/sound.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/mutex.h>
+#include <linux/dma-mapping.h>
+#include <linux/pm.h>
+
+#include <media/v4l2-dev.h>
+#include "tw68.h"
+#include "tw68-reg.h"
+
+MODULE_DESCRIPTION("v4l2 driver module for tw6800 based video capture cards");
+MODULE_AUTHOR("William M. Brack <wbrack@mmm.com.hk>");
+MODULE_LICENSE("GPL");
+
+static unsigned int core_debug;
+module_param(core_debug, int, 0644);
+MODULE_PARM_DESC(core_debug, "enable debug messages [core]");
+
+static unsigned int gpio_tracking;
+module_param(gpio_tracking, int, 0644);
+MODULE_PARM_DESC(gpio_tracking, "enable debug messages [gpio]");
+
+static unsigned int alsa = 1;
+module_param(alsa, int, 0644);
+MODULE_PARM_DESC(alsa, "enable/disable ALSA DMA sound [dmasound]");
+
+static unsigned int latency = UNSET;
+module_param(latency, int, 0444);
+MODULE_PARM_DESC(latency, "pci latency timer");
+
+static unsigned int nocomb;
+module_param(nocomb, int, 0644);
+MODULE_PARM_DESC(nocomb, "disable comb filter");
+
+static unsigned int video_nr[] = {[0 ... (TW68_MAXBOARDS - 1)] = UNSET };
+static unsigned int vbi_nr[] = {[0 ... (TW68_MAXBOARDS - 1)] = UNSET };
+static unsigned int radio_nr[] = {[0 ... (TW68_MAXBOARDS - 1)] = UNSET };
+static unsigned int tuner[] = {[0 ... (TW68_MAXBOARDS - 1)] = UNSET };
+static unsigned int card[] = {[0 ... (TW68_MAXBOARDS - 1)] = UNSET };
+
+module_param_array(video_nr, int, NULL, 0444);
+module_param_array(vbi_nr, int, NULL, 0444);
+module_param_array(radio_nr, int, NULL, 0444);
+module_param_array(tuner, int, NULL, 0444);
+module_param_array(card, int, NULL, 0444);
+
+MODULE_PARM_DESC(video_nr, "video device number");
+MODULE_PARM_DESC(vbi_nr, "vbi device number");
+MODULE_PARM_DESC(radio_nr, "radio device number");
+MODULE_PARM_DESC(tuner, "tuner type");
+MODULE_PARM_DESC(card, "card type");
+
+LIST_HEAD(tw68_devlist);
+EXPORT_SYMBOL(tw68_devlist);
+DEFINE_MUTEX(tw68_devlist_lock);
+EXPORT_SYMBOL(tw68_devlist_lock);
+static LIST_HEAD(mops_list);
+static unsigned int tw68_devcount; /* curr tot num of devices present */
+
+int (*tw68_dmasound_init)(struct tw68_dev *dev);
+EXPORT_SYMBOL(tw68_dmasound_init);
+int (*tw68_dmasound_exit)(struct tw68_dev *dev);
+EXPORT_SYMBOL(tw68_dmasound_exit);
+
+#define dprintk(level, fmt, arg...) if (core_debug & (level)) \
+ printk(KERN_DEBUG "%s: " fmt, dev->name , ## arg)
+
+/* ------------------------------------------------------------------ */
+
+void tw68_dma_free(struct videobuf_queue *q, struct tw68_buf *buf)
+{
+ struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
+
+ if (core_debug & DBG_FLOW)
+ printk(KERN_DEBUG "%s: called\n", __func__);
+ BUG_ON(in_interrupt());
+
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,36)
+ videobuf_waiton(&buf->vb, 0, 0);
+#else
+ videobuf_waiton(q, &buf->vb, 0, 0);
+#endif
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,35)
+ videobuf_dma_unmap(q, dma);
+#else
+ videobuf_dma_unmap(q->dev, dma);
+#endif
+ videobuf_dma_free(dma);
+ /* if no risc area allocated, btcx_riscmem_free just returns */
+ btcx_riscmem_free(to_pci_dev(q->dev), &buf->risc);
+ buf->vb.state = VIDEOBUF_NEEDS_INIT;
+}
+
+/* ------------------------------------------------------------------ */
+/* ------------- placeholders for later development ----------------- */
+
+static int tw68_input_init1(struct tw68_dev *dev)
+{
+ return 0;
+}
+
+static void tw68_input_fini(struct tw68_dev *dev)
+{
+ return;
+}
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,38)
+static void tw68_ir_start(struct tw68_dev *dev, struct card_ir *ir)
+{
+ return;
+}
+
+static void tw68_ir_stop(struct tw68_dev *dev)
+{
+ return;
+}
+#endif
+
+/* ------------------------------------------------------------------ */
+/*
+ * Buffer handling routines
+ *
+ * These routines are "generic", i.e. are intended to be used by more
+ * than one module, e.g. the video and the transport stream modules.
+ * To accomplish this generality, callbacks are used whenever some
+ * module-specific test or action is required.
+ */
+
+/* resends a current buffer in queue after resume */
+int tw68_buffer_requeue(struct tw68_dev *dev,
+ struct tw68_dmaqueue *q)
+{
+ struct tw68_buf *buf, *prev;
+
+ dprintk(DBG_FLOW | DBG_TESTING, "%s: called\n", __func__);
+ if (!list_empty(&q->active)) {
+ buf = list_entry(q->active.next, struct tw68_buf, vb.queue);
+ dprintk(DBG_BUFF, "%s: [%p/%d] restart dma\n", __func__,
+ buf, buf->vb.i);
+ q->start_dma(dev, q, buf);
+ mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
+ return 0;
+ }
+
+ prev = NULL;
+ for (;;) {
+ if (list_empty(&q->queued))
+ return 0;
+ buf = list_entry(q->queued.next, struct tw68_buf, vb.queue);
+ /* if nothing precedes this one */
+ if (NULL == prev) {
+ list_move_tail(&buf->vb.queue, &q->active);
+ q->start_dma(dev, q, buf);
+ buf->activate(dev, buf, NULL);
+ dprintk(DBG_BUFF, "%s: [%p/%d] first active\n",
+ __func__, buf, buf->vb.i);
+
+ } else if (q->buf_compat(prev, buf) &&
+ (prev->fmt == buf->fmt)) {
+ list_move_tail(&buf->vb.queue, &q->active);
+ buf->activate(dev, buf, NULL);
+ prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
+ dprintk(DBG_BUFF, "%s: [%p/%d] move to active\n",
+ __func__, buf, buf->vb.i);
+ } else {
+ dprintk(DBG_BUFF, "%s: no action taken\n", __func__);
+ return 0;
+ }
+ prev = buf;
+ }
+}
+
+/* nr of (tw68-)pages for the given buffer size */
+static int tw68_buffer_pages(int size)
+{
+ size = PAGE_ALIGN(size);
+ size += PAGE_SIZE; /* for non-page-aligned buffers */
+ size /= 4096;
+ return size;
+}
+
+/* calc max # of buffers from size (must not exceed the 4MB virtual
+ * address space per DMA channel) */
+int tw68_buffer_count(unsigned int size, unsigned int count)
+{
+ unsigned int maxcount;
+
+ maxcount = 1024 / tw68_buffer_pages(size);
+ if (count > maxcount)
+ count = maxcount;
+ return count;
+}
+
+/*
+ * tw68_wakeup
+ *
+ * Called when the driver completes filling a buffer, and tasks waiting
+ * for the data need to be awakened.
+ */
+void tw68_wakeup(struct tw68_dmaqueue *q, unsigned int *fc)
+{
+ struct tw68_dev *dev = q->dev;
+ struct tw68_buf *buf;
+
+ dprintk(DBG_FLOW, "%s: called\n", __func__);
+ if (list_empty(&q->active)) {
+ dprintk(DBG_BUFF | DBG_TESTING, "%s: active list empty",
+ __func__);
+ del_timer(&q->timeout);
+ return;
+ }
+ buf = list_entry(q->active.next, struct tw68_buf, vb.queue);
+ do_gettimeofday(&buf->vb.ts);
+ buf->vb.field_count = (*fc)++;
+ dprintk(DBG_BUFF | DBG_TESTING, "%s: [%p/%d] field_count=%d\n",
+ __func__, buf, buf->vb.i, *fc);
+ buf->vb.state = VIDEOBUF_DONE;
+ list_del(&buf->vb.queue);
+ wake_up(&buf->vb.done);
+ mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
+}
+
+/*
+ * tw68_buffer_queue
+ *
+ * Add specified buffer to specified queue
+ */
+void tw68_buffer_queue(struct tw68_dev *dev,
+ struct tw68_dmaqueue *q,
+ struct tw68_buf *buf)
+{
+ struct tw68_buf *prev;
+
+ dprintk(DBG_FLOW, "%s: called\n", __func__);
+ assert_spin_locked(&dev->slock);
+ dprintk(DBG_BUFF, "%s: queuing buffer %p\n", __func__, buf);
+
+ /* append a 'JUMP to stopper' to the buffer risc program */
+ buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_INT_BIT);
+ buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
+
+ /* if this buffer is not "compatible" (in dimensions and format)
+ * with the currently active chain of buffers, we must change
+ * settings before filling it; if a previous buffer has already
+ * been determined to require changes, this buffer must follow
+ * it. To do this, we maintain a "queued" chain. If that
+ * chain exists, append this buffer to it */
+ if (!list_empty(&q->queued)) {
+ list_add_tail(&buf->vb.queue, &q->queued);
+ buf->vb.state = VIDEOBUF_QUEUED;
+ dprintk(DBG_BUFF, "%s: [%p/%d] appended to queued\n",
+ __func__, buf, buf->vb.i);
+
+ /* else if the 'active' chain doesn't yet exist we create it now */
+ } else if (list_empty(&q->active)) {
+ dprintk(DBG_BUFF, "%s: [%p/%d] first active\n",
+ __func__, buf, buf->vb.i);
+ list_add_tail(&buf->vb.queue, &q->active);
+ q->start_dma(dev, q, buf); /* 1st one - start dma */
+ /* TODO - why have we removed buf->count and q->count? */
+ buf->activate(dev, buf, NULL);
+
+ /* else we would like to put this buffer on the tail of the
+ * active chain, provided it is "compatible". */
+ } else {
+ /* "compatibility" depends upon the type of buffer */
+ prev = list_entry(q->active.prev, struct tw68_buf, vb.queue);
+ if (q->buf_compat(prev, buf)) {
+ /* If "compatible", append to active chain */
+ prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
+ /* the param 'prev' is only for debug printing */
+ buf->activate(dev, buf, prev);
+ list_add_tail(&buf->vb.queue, &q->active);
+ dprintk(DBG_BUFF, "%s: [%p/%d] appended to active\n",
+ __func__, buf, buf->vb.i);
+ } else {
+ /* If "incompatible", append to queued chain */
+ list_add_tail(&buf->vb.queue, &q->queued);
+ buf->vb.state = VIDEOBUF_QUEUED;
+ dprintk(DBG_BUFF, "%s: [%p/%d] incompatible - appended "
+ "to queued\n", __func__, buf, buf->vb.i);
+ }
+ }
+}
+
+/*
+ * tw68_buffer_timeout
+ *
+ * This routine is set as the video_q.timeout.function
+ *
+ * Log the event, try to reset the h/w.
+ * Flag the current buffer as failed, try to start again with next buff
+ */
+void tw68_buffer_timeout(unsigned long data)
+{
+ struct tw68_dmaqueue *q = (struct tw68_dmaqueue *)data;
+ struct tw68_dev *dev = q->dev;
+ struct tw68_buf *buf;
+ unsigned long flags;
+
+ dprintk(DBG_FLOW, "%s: called\n", __func__);
+ spin_lock_irqsave(&dev->slock, flags);
+
+ /* flag all current active buffers as failed */
+ while (!list_empty(&q->active)) {
+ buf = list_entry(q->active.next, struct tw68_buf, vb.queue);
+ list_del(&buf->vb.queue);
+ buf->vb.state = VIDEOBUF_ERROR;
+ wake_up(&buf->vb.done);
+ printk(KERN_INFO "%s/0: [%p/%d] timeout - dma=0x%08lx\n",
+ dev->name, buf, buf->vb.i,
+ (unsigned long)buf->risc.dma);
+ }
+ tw68_buffer_requeue(dev, q);
+ spin_unlock_irqrestore(&dev->slock, flags);
+}
+
+/* ------------------------------------------------------------------ */
+/* early init (no i2c, no irq) */
+
+/* Called from tw68_hw_init1 and tw68_resume */
+static int tw68_hw_enable1(struct tw68_dev *dev)
+{
+ return 0;
+}
+
+/*
+ * The device is given a "soft reset". According to the specifications,
+ * after this "all register content remain unchanged", so we also write
+ * to all specified registers manually as well (mostly to manufacturer's
+ * specified reset values)
+ */
+static int tw68_hw_init1(struct tw68_dev *dev)
+{
+ dprintk(DBG_FLOW, "%s: called\n", __func__);
+ /* Assure all interrupts are disabled */
+ tw_writel(TW68_INTMASK, 0); /* 020 */
+ /* Clear any pending interrupts */
+ tw_writel(TW68_INTSTAT, 0xffffffff); /* 01C */
+ /* Stop risc processor, set default buffer level */
+ tw_writel(TW68_DMAC, 0x1600);
+
+ tw_writeb(TW68_ACNTL, 0x80); /* 218 soft reset */
+ msleep(100);
+
+ tw_writeb(TW68_INFORM, 0x40); /* 208 mux0, 27mhz xtal */
+ tw_writeb(TW68_OPFORM, 0x04); /* 20C analog line-lock */
+ tw_writeb(TW68_HSYNC, 0); /* 210 color-killer high sens */
+ tw_writeb(TW68_ACNTL, 0x42); /* 218 int vref #2, chroma adc off */
+
+ tw_writeb(TW68_CROP_HI, 0x02); /* 21C Hactive m.s. bits */
+ tw_writeb(TW68_VDELAY_LO, 0x12);/* 220 Mfg specified reset value */
+ tw_writeb(TW68_VACTIVE_LO, 0xf0);
+ tw_writeb(TW68_HDELAY_LO, 0x0f);
+ tw_writeb(TW68_HACTIVE_LO, 0xd0);
+
+ tw_writeb(TW68_CNTRL1, 0xcd); /* 230 Wide Chroma BPF B/W
+ * Secam reduction, Adap comb for
+ * NTSC, Op Mode 1 */
+
+ tw_writeb(TW68_VSCALE_LO, 0); /* 234 */
+ tw_writeb(TW68_SCALE_HI, 0x11); /* 238 */
+ tw_writeb(TW68_HSCALE_LO, 0); /* 23c */
+ tw_writeb(TW68_BRIGHT, 0); /* 240 */
+ tw_writeb(TW68_CONTRAST, 0x5c); /* 244 */
+ tw_writeb(TW68_SHARPNESS, 0x51);/* 248 */
+ tw_writeb(TW68_SAT_U, 0x80); /* 24C */
+ tw_writeb(TW68_SAT_V, 0x80); /* 250 */
+ tw_writeb(TW68_HUE, 0x00); /* 254 */
+
+ /* TODO - Check that none of these are set by control defaults */
+ tw_writeb(TW68_SHARP2, 0x53); /* 258 Mfg specified reset val */
+ tw_writeb(TW68_VSHARP, 0x80); /* 25C Sharpness Coring val 8 */
+ tw_writeb(TW68_CORING, 0x44); /* 260 CTI and Vert Peak coring */
+ tw_writeb(TW68_CNTRL2, 0x00); /* 268 No power saving enabled */
+ tw_writeb(TW68_SDT, 0x07); /* 270 Enable shadow reg, auto-det */
+ tw_writeb(TW68_SDTR, 0x7f); /* 274 All stds recog, don't start */
+ tw_writeb(TW68_CLMPG, 0x50); /* 280 Clamp end at 40 sys clocks */
+ tw_writeb(TW68_IAGC, 0x22); /* 284 Mfg specified reset val */
+ tw_writeb(TW68_AGCGAIN, 0xf0); /* 288 AGC gain when loop disabled */
+ tw_writeb(TW68_PEAKWT, 0xd8); /* 28C White peak threshold */
+ tw_writeb(TW68_CLMPL, 0x3c); /* 290 Y channel clamp level */
+// tw_writeb(TW68_SYNCT, 0x38); /* 294 Sync amplitude */
+ tw_writeb(TW68_SYNCT, 0x30); /* 294 Sync amplitude */
+ tw_writeb(TW68_MISSCNT, 0x44); /* 298 Horiz sync, VCR detect sens */
+ tw_writeb(TW68_PCLAMP, 0x28); /* 29C Clamp pos from PLL sync */
+ /* Bit DETV of VCNTL1 helps sync multi cams/chip board */
+ tw_writeb(TW68_VCNTL1, 0x04); /* 2A0 */
+ tw_writeb(TW68_VCNTL2, 0); /* 2A4 */
+ tw_writeb(TW68_CKILL, 0x68); /* 2A8 Mfg specified reset val */
+ tw_writeb(TW68_COMB, 0x44); /* 2AC Mfg specified reset val */
+ tw_writeb(TW68_LDLY, 0x30); /* 2B0 Max positive luma delay */
+ tw_writeb(TW68_MISC1, 0x14); /* 2B4 Mfg specified reset val */
+ tw_writeb(TW68_LOOP, 0xa5); /* 2B8 Mfg specified reset val */
+ tw_writeb(TW68_MISC2, 0xe0); /* 2BC Enable colour killer */
+ tw_writeb(TW68_MVSN, 0); /* 2C0 */
+ tw_writeb(TW68_CLMD, 0x05); /* 2CC slice level auto, clamp med. */
+ tw_writeb(TW68_IDCNTL, 0); /* 2D0 Writing zero to this register
+ * selects NTSC ID detection,
+ * but doesn't change the
+ * sensitivity (which has a reset
+ * value of 1E). Since we are
+ * not doing auto-detection, it
+ * has no real effect */
+ tw_writeb(TW68_CLCNTL1, 0); /* 2D4 */
+ tw_writel(TW68_VBIC, 0x03); /* 010 */
+ tw_writel(TW68_CAP_CTL, 0x03); /* 040 Enable both even & odd flds */
+ tw_writel(TW68_DMAC, 0x2000); /* patch set had 0x2080 */
+ tw_writel(TW68_TESTREG, 0); /* 02C */
+
+ /*
+ * Some common boards, especially inexpensive single-chip models,
+ * use the GPIO bits 0-3 to control an on-board video-output mux.
+ * For these boards, we need to set up the GPIO register into
+ * "normal" mode, set bits 0-3 as output, and then set those bits
+ * zero.
+ *
+ * Eventually, it would be nice if we could identify these boards
+ * uniquely, and only do this initialisation if the board has been
+ * identify. For the moment, however, it shouldn't hurt anything
+ * to do these steps.
+ */
+ tw_writel(TW68_GPIOC, 0); /* Set the GPIO to "normal", no ints */
+ tw_writel(TW68_GPOE, 0x0f); /* Set bits 0-3 to "output" */
+ tw_writel(TW68_GPDATA, 0); /* Set all bits to low state */
+
+ /* Initialize the device control structures */
+ mutex_init(&dev->lock);
+ spin_lock_init(&dev->slock);
+
+ /* Initialize any subsystems */
+ tw68_video_init1(dev);
+ tw68_vbi_init1(dev);
+ if (card_has_mpeg(dev))
+ tw68_ts_init1(dev);
+ tw68_input_init1(dev);
+
+ /* Do any other h/w early initialisation at this point */
+ tw68_hw_enable1(dev);
+
+ return 0;
+}
+
+/* late init (with i2c + irq) */
+static int tw68_hw_enable2(struct tw68_dev *dev)
+{
+
+ dprintk(DBG_FLOW, "%s: called\n", __func__);
+#ifdef TW68_TESTING
+ dev->pci_irqmask |= TW68_I2C_INTS;
+#endif
+ tw_setl(TW68_INTMASK, dev->pci_irqmask);
+ return 0;
+}
+
+static int tw68_hw_init2(struct tw68_dev *dev)
+{
+ dprintk(DBG_FLOW, "%s: called\n", __func__);
+ tw68_video_init2(dev); /* initialise video function first */
+ tw68_tvaudio_init2(dev);/* audio next */
+
+ /* all other board-related things, incl. enabling interrupts */
+ tw68_hw_enable2(dev);
+ return 0;
+}
+
+/* shutdown */
+static int tw68_hwfini(struct tw68_dev *dev)
+{
+ dprintk(DBG_FLOW, "%s: called\n", __func__);
+ if (card_has_mpeg(dev))
+ tw68_ts_fini(dev);
+ tw68_input_fini(dev);
+ tw68_vbi_fini(dev);
+ tw68_tvaudio_fini(dev);
+ return 0;
+}
+
+static void __devinit must_configure_manually(void)
+{
+ unsigned int i, p;
+
+ printk(KERN_WARNING
+ "tw68: <rant>\n"
+ "tw68: Congratulations! Your TV card vendor saved a few\n"
+ "tw68: cents for a eeprom, thus your pci board has no\n"
+ "tw68: subsystem ID and I can't identify it automatically\n"
+ "tw68: </rant>\n"
+ "tw68: I feel better now. Ok, here is the good news:\n"
+ "tw68: You can use the card=<nr> insmod option to specify\n"
+ "tw68: which board you have. The list:\n");
+ for (i = 0; i < tw68_bcount; i++) {
+ printk(KERN_WARNING "tw68: card=%d -> %-40.40s",
+ i, tw68_boards[i].name);
+ for (p = 0; tw68_pci_tbl[p].driver_data; p++) {
+ if (tw68_pci_tbl[p].driver_data != i)
+ continue;
+ printk(" %04x:%04x",
+ tw68_pci_tbl[p].subvendor,
+ tw68_pci_tbl[p].subdevice);
+ }
+ printk("\n");
+ }
+}
+
+
+static irqreturn_t tw68_irq(int irq, void *dev_id)
+{
+ struct tw68_dev *dev = dev_id;
+ u32 status, orig;
+ int loop;
+
+ status = orig = tw_readl(TW68_INTSTAT) & dev->pci_irqmask;
+ /* Check if anything to do */
+ if (0 == status)
+ return IRQ_RETVAL(0); /* Nope - return */
+ for (loop = 0; loop < 10; loop++) {
+ if (status & dev->board_virqmask) /* video interrupt */
+ tw68_irq_video_done(dev, status);
+#ifdef TW68_TESTING
+ if (status & TW68_I2C_INTS)
+ tw68_irq_i2c(dev, status);
+#endif
+ status = tw_readl(TW68_INTSTAT) & dev->pci_irqmask;
+ if (0 == status)
+ goto out;
+ }
+ dprintk(DBG_UNEXPECTED, "%s: **** INTERRUPT NOT HANDLED - clearing mask"
+ " (orig 0x%08x, cur 0x%08x)",
+ dev->name, orig, tw_readl(TW68_INTSTAT));
+ dprintk(DBG_UNEXPECTED, "%s: pci_irqmask 0x%08x; board_virqmask "
+ "0x%08x ****\n", dev->name,
+ dev->pci_irqmask, dev->board_virqmask);
+ tw_clearl(TW68_INTMASK, dev->pci_irqmask);
+out:
+ return IRQ_RETVAL(1);
+}
+
+int tw68_set_dmabits(struct tw68_dev *dev)
+{
+ return 0;
+}
+
+static struct video_device *vdev_init(struct tw68_dev *dev,
+ struct video_device *template,
+ char *type)
+{
+ struct video_device *vfd;
+
+ dprintk(DBG_FLOW, "%s: called\n", __func__);
+ vfd = video_device_alloc();
+ if (NULL == vfd)
+ return NULL;
+ *vfd = *template;
+ vfd->minor = -1;
+ vfd->parent = &dev->pci->dev;
+ vfd->release = video_device_release;
+ /* vfd->debug = tw_video_debug; */
+ snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
+ dev->name, type, tw68_boards[dev->board].name);
+ return vfd;
+}
+
+static void tw68_unregister_video(struct tw68_dev *dev)
+{
+
+ dprintk(DBG_FLOW, "%s: called\n", __func__);
+ if (dev->video_dev) {
+ if (-1 != dev->video_dev->minor)
+ video_unregister_device(dev->video_dev);
+ else
+ video_device_release(dev->video_dev);
+ dev->video_dev = NULL;
+ }
+ if (dev->vbi_dev) {
+ if (-1 != dev->vbi_dev->minor)
+ video_unregister_device(dev->vbi_dev);
+ else
+ video_device_release(dev->vbi_dev);
+ dev->vbi_dev = NULL;
+ }
+ if (dev->radio_dev) {
+ if (-1 != dev->radio_dev->minor)
+ video_unregister_device(dev->radio_dev);
+ else
+ video_device_release(dev->radio_dev);
+ dev->radio_dev = NULL;
+ }
+}
+
+static void mpeg_ops_attach(struct tw68_mpeg_ops *ops,
+ struct tw68_dev *dev)
+{
+ int err;
+
+ dprintk(DBG_FLOW, "%s: called\n", __func__);
+ if (NULL != dev->mops)
+ return;
+ if (tw68_boards[dev->board].mpeg != ops->type)
+ return;
+ err = ops->init(dev);
+ if (0 != err)
+ return;
+ dev->mops = ops;
+}
+
+static void mpeg_ops_detach(struct tw68_mpeg_ops *ops,
+ struct tw68_dev *dev)
+{
+
+ if (NULL == dev->mops)
+ return;
+ if (dev->mops != ops)
+ return;
+ dev->mops->fini(dev);
+ dev->mops = NULL;
+}
+
+static int __devinit tw68_initdev(struct pci_dev *pci_dev,
+ const struct pci_device_id *pci_id)
+{
+ struct tw68_dev *dev;
+ struct tw68_mpeg_ops *mops;
+ int err;
+
+ if (tw68_devcount == TW68_MAXBOARDS)
+ return -ENOMEM;
+
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (NULL == dev)
+ return -ENOMEM;
+
+ err = v4l2_device_register(&pci_dev->dev, &dev->v4l2_dev);
+ if (err)
+ goto fail0;
+
+ /* pci init */
+ dev->pci = pci_dev;
+ if (pci_enable_device(pci_dev)) {
+ err = -EIO;
+ goto fail1;
+ }
+
+ dev->nr = tw68_devcount;
+ sprintf(dev->name, "tw%x[%d]", pci_dev->device, dev->nr);
+
+ /* pci quirks */
+ if (pci_pci_problems) {
+ if (pci_pci_problems & PCIPCI_TRITON)
+ printk(KERN_INFO "%s: quirk: PCIPCI_TRITON\n",
+ dev->name);
+ if (pci_pci_problems & PCIPCI_NATOMA)
+ printk(KERN_INFO "%s: quirk: PCIPCI_NATOMA\n",
+ dev->name);
+ if (pci_pci_problems & PCIPCI_VIAETBF)
+ printk(KERN_INFO "%s: quirk: PCIPCI_VIAETBF\n",
+ dev->name);
+ if (pci_pci_problems & PCIPCI_VSFX)
+ printk(KERN_INFO "%s: quirk: PCIPCI_VSFX\n",
+ dev->name);
+#ifdef PCIPCI_ALIMAGIK
+ if (pci_pci_problems & PCIPCI_ALIMAGIK) {
+ printk(KERN_INFO "%s: quirk: PCIPCI_ALIMAGIK "
+ "-- latency fixup\n", dev->name);
+ latency = 0x0A;
+ }
+#endif
+ }
+ if (UNSET != latency) {
+ printk(KERN_INFO "%s: setting pci latency timer to %d\n",
+ dev->name, latency);
+ pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency);
+ }
+
+ /* print pci info */
+ pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &dev->pci_rev);
+ pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER, &dev->pci_lat);
+ printk(KERN_INFO "%s: found at %s, rev: %d, irq: %d, "
+ "latency: %d, mmio: 0x%llx\n", dev->name,
+ pci_name(pci_dev), dev->pci_rev, pci_dev->irq, dev->pci_lat,
+ (unsigned long long)pci_resource_start(pci_dev, 0));
+ pci_set_master(pci_dev);
+ if (!pci_dma_supported(pci_dev, DMA_BIT_MASK(32))) {
+ printk("%s: Oops: no 32bit PCI DMA ???\n", dev->name);
+ err = -EIO;
+ goto fail1;
+ }
+
+ switch (pci_id->device) {
+ case PCI_DEVICE_ID_6800: /* TW6800 */
+ dev->vdecoder = TW6800;
+ dev->board_virqmask = TW68_VID_INTS;
+ break;
+ case PCI_DEVICE_ID_6801: /* Video decoder for TW6802 */
+ dev->vdecoder = TW6801;
+ dev->board_virqmask = TW68_VID_INTS | TW68_VID_INTSX;
+ break;
+ case PCI_DEVICE_ID_6804: /* Video decoder for TW6805 */
+ dev->vdecoder = TW6804;
+ dev->board_virqmask = TW68_VID_INTS | TW68_VID_INTSX;
+ break;
+ default:
+ dev->vdecoder = TWXXXX; /* To be announced */
+ dev->board_virqmask = TW68_VID_INTS | TW68_VID_INTSX;
+ break;
+ }
+ /* board config */
+ dev->board = pci_id->driver_data;
+ if (card[dev->nr] >= 0 &&
+ card[dev->nr] < tw68_bcount)
+ dev->board = card[dev->nr];
+ if (TW68_BOARD_NOAUTO == dev->board) {
+ must_configure_manually();
+ dev->board = TW68_BOARD_UNKNOWN;
+ }
+ dev->autodetected = card[dev->nr] != dev->board;
+ dev->tuner_type = tw68_boards[dev->board].tuner_type;
+ dev->tuner_addr = tw68_boards[dev->board].tuner_addr;
+ dev->radio_type = tw68_boards[dev->board].radio_type;
+ dev->radio_addr = tw68_boards[dev->board].radio_addr;
+ dev->tda9887_conf = tw68_boards[dev->board].tda9887_conf;
+ if (UNSET != tuner[dev->nr])
+ dev->tuner_type = tuner[dev->nr];
+ printk(KERN_INFO "%s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
+ dev->name, pci_dev->subsystem_vendor,
+ pci_dev->subsystem_device, tw68_boards[dev->board].name,
+ dev->board, dev->autodetected ?
+ "autodetected" : "insmod option");
+
+ /* get mmio */
+ if (!request_mem_region(pci_resource_start(pci_dev, 0),
+ pci_resource_len(pci_dev, 0),
+ dev->name)) {
+ err = -EBUSY;
+ printk(KERN_ERR "%s: can't get MMIO memory @ 0x%llx\n",
+ dev->name,
+ (unsigned long long)pci_resource_start(pci_dev, 0));
+ goto fail1;
+ }
+ dev->lmmio = ioremap(pci_resource_start(pci_dev, 0),
+ pci_resource_len(pci_dev, 0));
+ dev->bmmio = (__u8 __iomem *)dev->lmmio;
+ if (NULL == dev->lmmio) {
+ err = -EIO;
+ printk(KERN_ERR "%s: can't ioremap() MMIO memory\n",
+ dev->name);
+ goto fail2;
+ }
+ /* initialize hardware #1 */
+ /* First, take care of anything unique to a particular card */
+ tw68_board_init1(dev);
+ /* Then do any initialisation wanted before interrupts are on */
+ tw68_hw_init1(dev);
+
+ /* get irq */
+ err = request_irq(pci_dev->irq, tw68_irq,
+ IRQF_SHARED | IRQF_DISABLED, dev->name, dev);
+ if (err < 0) {
+ printk(KERN_ERR "%s: can't get IRQ %d\n",
+ dev->name, pci_dev->irq);
+ goto fail3;
+ }
+
+#ifdef TW68_TESTING
+ dev->pci_irqmask |= TW68_SBDONE;
+ tw_setl(TW68_INTMASK, dev->pci_irqmask);
+ printk(KERN_INFO "Calling tw68_i2c_register\n");
+ /* Register the i2c bus */
+ tw68_i2c_register(dev);
+#endif
+
+ /*
+ * Now do remainder of initialisation, first for
+ * things unique for this card, then for general board
+ */
+ tw68_board_init2(dev);
+
+ tw68_hw_init2(dev);
+
+#if 0
+ /* load i2c helpers */
+ if (card_is_empress(dev)) {
+ struct v4l2_subdev *sd =
+ v4l2_i2c_new_subdev(&dev->i2c_adap, "saa6752hs",
+ "saa6752hs", 0x20);
+
+ if (sd)
+ sd->grp_id = GRP_EMPRESS;
+ }
+
+ request_submodules(dev);
+#endif
+
+ v4l2_prio_init(&dev->prio);
+
+ mutex_lock(&tw68_devlist_lock);
+ list_for_each_entry(mops, &mops_list, next)
+ mpeg_ops_attach(mops, dev);
+ list_add_tail(&dev->devlist, &tw68_devlist);
+ mutex_unlock(&tw68_devlist_lock);
+
+ /* check for signal */
+ tw68_irq_video_signalchange(dev);
+
+#if 0
+ if (TUNER_ABSENT != dev->tuner_type)
+ tw_call_all(dev, core, s_standby, 0);
+#endif
+
+ dev->video_dev = vdev_init(dev, &tw68_video_template, "video");
+ err = video_register_device(dev->video_dev, VFL_TYPE_GRABBER,
+ video_nr[dev->nr]);
+ if (err < 0) {
+ printk(KERN_INFO "%s: can't register video device\n",
+ dev->name);
+ goto fail4;
+ }
+ printk(KERN_INFO "%s: registered device video%d [v4l2]\n",
+ dev->name, dev->video_dev->num);
+
+ dev->vbi_dev = vdev_init(dev, &tw68_video_template, "vbi");
+
+ err = video_register_device(dev->vbi_dev, VFL_TYPE_VBI,
+ vbi_nr[dev->nr]);
+ if (err < 0) {
+ printk(KERN_INFO "%s: can't register vbi device\n",
+ dev->name);
+ goto fail4;
+ }
+ printk(KERN_INFO "%s: registered device vbi%d\n",
+ dev->name, dev->vbi_dev->num);
+
+ if (card_has_radio(dev)) {
+ dev->radio_dev = vdev_init(dev, &tw68_radio_template,
+ "radio");
+ err = video_register_device(dev->radio_dev, VFL_TYPE_RADIO,
+ radio_nr[dev->nr]);
+ if (err < 0) {
+ /* TODO - need to unregister vbi? */
+ printk(KERN_INFO "%s: can't register radio device\n",
+ dev->name);
+ goto fail4;
+ }
+ printk(KERN_INFO "%s: registered device radio%d\n",
+ dev->name, dev->radio_dev->num);
+ }
+
+ /* everything worked */
+ tw68_devcount++;
+
+ if (tw68_dmasound_init && !dev->dmasound.priv_data)
+ tw68_dmasound_init(dev);
+
+ return 0;
+
+ fail4:
+ tw68_unregister_video(dev);
+#ifdef TW68_TESTING
+ tw68_i2c_unregister(dev);
+#endif
+ free_irq(pci_dev->irq, dev);
+ fail3:
+ tw68_hwfini(dev);
+ iounmap(dev->lmmio);
+ fail2:
+ release_mem_region(pci_resource_start(pci_dev, 0),
+ pci_resource_len(pci_dev, 0));
+ fail1:
+ v4l2_device_unregister(&dev->v4l2_dev);
+ fail0:
+ kfree(dev);
+ return err;
+}
+
+static void __devexit tw68_finidev(struct pci_dev *pci_dev)
+{
+ struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
+ struct tw68_dev *dev =
+ container_of(v4l2_dev, struct tw68_dev, v4l2_dev);
+ struct tw68_mpeg_ops *mops;
+
+ dprintk(DBG_FLOW, "%s: called\n", __func__);
+ /* Release DMA sound modules if present */
+ if (tw68_dmasound_exit && dev->dmasound.priv_data)
+ tw68_dmasound_exit(dev);
+
+ /* shutdown subsystems */
+ tw68_hwfini(dev);
+ tw_clearl(TW68_DMAC, TW68_DMAP_EN | TW68_FIFO_EN);
+ tw_writel(TW68_INTMASK, 0);
+
+ /* unregister */
+ mutex_lock(&tw68_devlist_lock);
+ list_del(&dev->devlist);
+ list_for_each_entry(mops, &mops_list, next)
+ mpeg_ops_detach(mops, dev);
+ mutex_unlock(&tw68_devlist_lock);
+ tw68_devcount--;
+
+#ifdef TW68_TESTING
+ tw68_i2c_unregister(dev);
+#endif
+ tw68_unregister_video(dev);
+
+
+ /* the DMA sound modules should be unloaded before reaching
+ this, but just in case they are still present... */
+ if (dev->dmasound.priv_data != NULL) {
+ free_irq(pci_dev->irq, &dev->dmasound);
+ dev->dmasound.priv_data = NULL;
+ }
+
+
+ /* release resources */
+ free_irq(pci_dev->irq, dev);
+ iounmap(dev->lmmio);
+ release_mem_region(pci_resource_start(pci_dev, 0),
+ pci_resource_len(pci_dev, 0));
+
+ v4l2_device_unregister(&dev->v4l2_dev);
+
+ /* free memory */
+ kfree(dev);
+}
+
+#ifdef CONFIG_PM
+
+static int tw68_suspend(struct pci_dev *pci_dev , pm_message_t state)
+{
+ struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
+ struct tw68_dev *dev = container_of(v4l2_dev,
+ struct tw68_dev, v4l2_dev);
+
+ dprintk(DBG_FLOW, "%s: called\n", __func__);
+ tw_clearl(TW68_DMAC, TW68_DMAP_EN | TW68_FIFO_EN);
+ dev->pci_irqmask &= ~TW68_VID_INTS;
+ tw_writel(TW68_INTMASK, 0);
+
+ dev->insuspend = 1;
+ synchronize_irq(pci_dev->irq);
+
+ /* Disable timeout timers - if we have active buffers, we will
+ fill them on resume*/
+
+ del_timer(&dev->video_q.timeout);
+ del_timer(&dev->vbi_q.timeout);
+ del_timer(&dev->ts_q.timeout);
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,38)
+ if (dev->remote)
+ tw68_ir_stop(dev);
+#endif
+
+ pci_save_state(pci_dev);
+ pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state));
+
+ return 0;
+}
+
+static int tw68_resume(struct pci_dev *pci_dev)
+{
+ struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
+ struct tw68_dev *dev = container_of(v4l2_dev,
+ struct tw68_dev, v4l2_dev);
+ unsigned long flags;
+
+ dprintk(DBG_FLOW, "%s: called\n", __func__);
+ pci_set_power_state(pci_dev, PCI_D0);
+ pci_restore_state(pci_dev);
+
+ /* Do things that are done in tw68_initdev ,
+ except of initializing memory structures.*/
+
+ tw68_board_init1(dev);
+
+ /* tw68_hw_init1 */
+ if (tw68_boards[dev->board].video_out)
+ tw68_videoport_init(dev);
+ if (card_has_mpeg(dev))
+ tw68_ts_init_hw(dev);
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,38)
+ if (dev->remote)
+ tw68_ir_start(dev, dev->remote);
+#endif
+ tw68_hw_enable1(dev);
+
+ msleep(100);
+
+ tw68_board_init2(dev);
+
+ /*tw68_hw_init2*/
+ tw68_set_tvnorm_hw(dev);
+ tw68_tvaudio_setmute(dev);
+/* tw68_tvaudio_setvolume(dev, dev->ctl_volume); */
+ tw68_tvaudio_init(dev);
+ tw68_irq_video_signalchange(dev);
+
+ /*resume unfinished buffer(s)*/
+ spin_lock_irqsave(&dev->slock, flags);
+ tw68_buffer_requeue(dev, &dev->video_q);
+ tw68_buffer_requeue(dev, &dev->vbi_q);
+ tw68_buffer_requeue(dev, &dev->ts_q);
+
+ /* FIXME: Disable DMA audio sound - temporary till proper support
+ is implemented*/
+
+ dev->dmasound.dma_running = 0;
+
+ /* start DMA now*/
+ dev->insuspend = 0;
+ smp_wmb();
+ tw68_set_dmabits(dev);
+ spin_unlock_irqrestore(&dev->slock, flags);
+
+ return 0;
+}
+#endif
+
+/* ----------------------------------------------------------- */
+
+static struct pci_driver tw68_pci_driver = {
+ .name = "tw68",
+ .id_table = tw68_pci_tbl,
+ .probe = tw68_initdev,
+ .remove = __devexit_p(tw68_finidev),
+#ifdef CONFIG_PM
+ .suspend = tw68_suspend,
+ .resume = tw68_resume
+#endif
+};
+
+static int tw68_init(void)
+{
+ if (core_debug & DBG_FLOW)
+ printk(KERN_DEBUG "%s: called\n", __func__);
+ INIT_LIST_HEAD(&tw68_devlist);
+ printk(KERN_INFO "tw68: v4l2 driver version %d.%d.%d loaded\n",
+ (TW68_VERSION_CODE >> 16) & 0xff,
+ (TW68_VERSION_CODE >> 8) & 0xff,
+ TW68_VERSION_CODE & 0xff);
+#if 0
+ printk(KERN_INFO "tw68: snapshot date %04d-%02d-%02d\n",
+ SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
+#endif
+ return pci_register_driver(&tw68_pci_driver);
+}
+
+static void module_cleanup(void)
+{
+ if (core_debug & DBG_FLOW)
+ printk(KERN_DEBUG "%s: called\n", __func__);
+ pci_unregister_driver(&tw68_pci_driver);
+}
+
+module_init(tw68_init);
+module_exit(module_cleanup);
--- /dev/null
+/*
+ * tw68 code to handle the i2c interface.
+ *
+ * Much of this code is derived from the bt87x driver. The original
+ * work was by Gerd Knorr; more recently the code was enhanced by Mauro
+ * Carvalho Chehab. Their work is gratefully acknowledged. Full credit
+ * goes to them - any problems within this code are mine.
+ *
+ * Copyright (C) 2009 William M. Brack <wbrack@mmm.com.hk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+
+#include "tw68.h"
+#include <media/v4l2-common.h>
+#include <linux/i2c-algo-bit.h>
+
+/*----------------------------------------------------------------*/
+
+static unsigned int i2c_debug;
+module_param(i2c_debug, int, 0644);
+MODULE_PARM_DESC(i2c_debug, "enable debug messages [i2c]");
+
+#if 0
+static unsigned int i2c_scan;
+module_param(i2c_scan, int, 0444);
+MODULE_PARM_DESC(i2c_scan, "scan i2c bus at insmod time");
+#endif
+
+#define d1printk if (1 == i2c_debug) printk
+
+#define I2C_CLOCK 0xa6 /* 99.4 kHz */
+
+/*----------------------------------------------------------------------*/
+/* Although the TW68xx i2c controller has a "hardware" mode, where all of
+ * the low-level i2c/smbbus is handled by the chip, it appears that mode
+ * is not suitable for linux i2c handling routines because extended "bursts"
+ * of data (sequences of bytes without intervening START/STOP bits) are
+ * not possible. Instead, we put the chip into "software" mode, and handle
+ * the i2c bus at a low level. To accomplish this, we use the routines
+ * from the i2c modules.
+ *
+ * Because the particular boards which I had for testing did not have any
+ * devices attached to the i2c bus, I have been unable to test these
+ * routines.
+ */
+
+/*----------------------------------------------------------------------*/
+/* I2C functions - "bit-banging" adapter (software i2c) */
+
+/* tw68_bit_setcl
+ * Handles "toggling" the i2c clock bit
+ */
+static void tw68_bit_setscl(void *data, int state)
+{
+ struct tw68_dev *dev = data;
+
+ tw_andorb(TW68_SBUSC, (state ? 1 : 0) << TW68_SSCLK, TW68_SSCLK_B);
+}
+
+/* tw68_bit_setsda
+ * Handles "toggling" the i2c data bit
+ */
+static void tw68_bit_setsda(void *data, int state)
+{
+ struct tw68_dev *dev = data;
+
+ tw_andorb(TW68_SBUSC, (state ? 1 : 0) << TW68_SSDAT, TW68_SSDAT_B);
+}
+
+/* tw68_bit_getscl
+ *
+ * Returns the current state of the clock bit
+ */
+static int tw68_bit_getscl(void *data)
+{
+ struct tw68_dev *dev = data;
+
+ return (tw_readb(TW68_SBUSC) & TW68_SSCLK_B) ? 1 : 0;
+}
+
+/* tw68_bit_getsda
+ *
+ * Returns the current state of the data bit
+ */
+static int tw68_bit_getsda(void *data)
+{
+ struct tw68_dev *dev = data;
+
+ return (tw_readb(TW68_SBUSC) & TW68_SSDAT_B) ? 1 : 0;
+}
+
+static struct i2c_algo_bit_data __devinitdata tw68_i2c_algo_bit_template = {
+ .setsda = tw68_bit_setsda,
+ .setscl = tw68_bit_setscl,
+ .getsda = tw68_bit_getsda,
+ .getscl = tw68_bit_getscl,
+ .udelay = 16,
+ .timeout = 200,
+};
+
+static struct i2c_client tw68_client_template = {
+ .name = "tw68 internal",
+};
+
+/*----------------------------------------------------------------*/
+
+static int attach_inform(struct i2c_client *client)
+{
+/* struct tw68_dev *dev = client->adapter->algo_data; */
+
+ d1printk("%s i2c attach [addr=0x%x,client=%s]\n",
+ client->driver->driver.name, client->addr, client->name);
+
+ switch (client->addr) {
+ /* No info yet on what addresses to expect */
+ }
+
+ return 0;
+}
+
+static struct i2c_adapter tw68_adap_sw_template = {
+ .owner = THIS_MODULE,
+ .name = "tw68_sw",
+ .client_register = attach_inform,
+};
+
+static int tw68_i2c_eeprom(struct tw68_dev *dev, unsigned char *eedata,
+ int len)
+{
+ unsigned char buf;
+ int i, err;
+
+ dev->i2c_client.addr = 0xa0 >> 1;
+ buf = 256 - len;
+
+ err = i2c_master_send(&dev->i2c_client, &buf, 1);
+ if (1 != err) {
+ printk(KERN_INFO "%s: Huh, no eeprom present (err = %d)?\n",
+ dev->name, err);
+ return -1;
+ }
+ err = i2c_master_recv(&dev->i2c_client, eedata, len);
+ if (len != err) {
+ printk(KERN_WARNING "%s: i2c eeprom read error (err=%d)\n",
+ dev->name, err);
+ return -1;
+ }
+
+ for (i = 0; i < len; i++) {
+ if (0 == (i % 16))
+ printk(KERN_INFO "%s: i2c eeprom %02x:",
+ dev->name, i);
+ printk(KERN_INFO " %02x", eedata[i]);
+ if (15 == (i % 16))
+ printk("\n");
+ }
+ return 0;
+}
+
+#if 0
+static char *i2c_devs[128] = {
+ [0xa0 >> 1] = "eeprom",
+};
+
+static void do_i2c_scan(char *name, struct i2c_client *c)
+{
+ unsigned char buf;
+ int i, rc;
+
+ for (i = 0; i < ARRAY_SIZE(i2c_devs); i++) {
+ c->addr = i;
+ rc = i2c_master_recv(c, &buf, 1);
+ if (rc < 0)
+ continue;
+ printk(KERN_INFO "%s: i2c scan: found device "
+ "@ 0x%x [%s]\n", name, i << 1,
+ i2c_devs[i] ? i2c_devs[i] : "???");
+ }
+}
+#endif
+
+int __devinit tw68_i2c_register(struct tw68_dev *dev)
+{
+ int rc;
+
+printk(KERN_DEBUG "%s: Registering i2c module\n", __func__);
+ tw_writeb(TW68_I2C_RST, 1); /* reset the i2c module */
+
+ memcpy(&dev->i2c_client, &tw68_client_template,
+ sizeof(tw68_client_template));
+
+ memcpy(&dev->i2c_adap, &tw68_adap_sw_template,
+ sizeof(tw68_adap_sw_template));
+ dev->i2c_adap.algo_data = &dev->i2c_algo;
+ dev->i2c_adap.dev.parent = &dev->pci->dev;
+
+ memcpy(&dev->i2c_algo, &tw68_i2c_algo_bit_template,
+ sizeof(tw68_i2c_algo_bit_template));
+ dev->i2c_algo.data = dev;
+ /* TODO - may want to set better name (see bttv code) */
+
+ i2c_set_adapdata(&dev->i2c_adap, &dev->v4l2_dev);
+ dev->i2c_client.adapter = &dev->i2c_adap;
+
+ /* Assure chip is in "software" mode */
+ tw_writel(TW68_SBUSC, TW68_SSDAT | TW68_SSCLK);
+ tw68_bit_setscl(dev, 1);
+ tw68_bit_setsda(dev, 1);
+
+ rc = i2c_bit_add_bus(&dev->i2c_adap);
+
+ tw68_i2c_eeprom(dev, dev->eedata, sizeof(dev->eedata));
+#if 0
+ if (i2c_scan)
+ do_i2c_scan(dev->name, &dev->i2c_client);
+#endif
+
+ return rc;
+}
+
+int tw68_i2c_unregister(struct tw68_dev *dev)
+{
+ i2c_del_adapter(&dev->i2c_adap);
+ return 0;
+}
--- /dev/null
+/*
+ * tw68-reg.h - TW68xx register offsets
+ *
+ * Much of this code is derived from the cx88 and sa7134 drivers, which
+ * were in turn derived from the bt87x driver. The original work was by
+ * Gerd Knorr; more recently the code was enhanced by Mauro Carvalho Chehab,
+ * Hans Verkuil, Andy Walls and many others. Their work is gratefully
+ * acknowledged. Full credit goes to them - any problems within this code
+ * are mine.
+ *
+ * Copyright (C) William M. Brack <wbrack@mmm.com.hk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#ifndef _TW68_REG_H_
+#define _TW68_REG_H_
+
+/* ---------------------------------------------------------------------- */
+#define TW68_DMAC 0x000
+#define TW68_DMAP_SA 0x004
+#define TW68_DMAP_EXE 0x008
+#define TW68_DMAP_PP 0x00c
+#define TW68_VBIC 0x010
+#define TW68_SBUSC 0x014
+#define TW68_SBUSSD 0x018
+#define TW68_INTSTAT 0x01C
+#define TW68_INTMASK 0x020
+#define TW68_GPIOC 0x024
+#define TW68_GPOE 0x028
+#define TW68_TESTREG 0x02C
+#define TW68_SBUSRD 0x030
+#define TW68_SBUS_TRIG 0x034
+#define TW68_CAP_CTL 0x040
+#define TW68_SUBSYS 0x054
+#define TW68_I2C_RST 0x064
+#define TW68_VBIINST 0x06C
+/* define bits in FIFO and DMAP Control reg */
+#define TW68_DMAP_EN (1 << 0)
+#define TW68_FIFO_EN (1 << 1)
+/* define the Interrupt Status Register bits */
+#define TW68_SBDONE (1 << 0)
+#define TW68_DMAPI (1 << 1)
+#define TW68_GPINT (1 << 2)
+#define TW68_FFOF (1 << 3)
+#define TW68_FDMIS (1 << 4)
+#define TW68_DMAPERR (1 << 5)
+#define TW68_PABORT (1 << 6)
+#define TW68_SBDONE2 (1 << 12)
+#define TW68_SBERR2 (1 << 13)
+#define TW68_PPERR (1 << 14)
+#define TW68_FFERR (1 << 15)
+#define TW68_DET50 (1 << 16)
+#define TW68_FLOCK (1 << 17)
+#define TW68_CCVALID (1 << 18)
+#define TW68_VLOCK (1 << 19)
+#define TW68_FIELD (1 << 20)
+#define TW68_SLOCK (1 << 21)
+#define TW68_HLOCK (1 << 22)
+#define TW68_VDLOSS (1 << 23)
+#define TW68_SBERR (1 << 24)
+/* define the i2c control register bits */
+#define TW68_SBMODE (0)
+#define TW68_WREN (1)
+#define TW68_SSCLK (6)
+#define TW68_SSDAT (7)
+#define TW68_SBCLK (8)
+#define TW68_WDLEN (16)
+#define TW68_RDLEN (20)
+#define TW68_SBRW (24)
+#define TW68_SBDEV (25)
+
+#define TW68_SBMODE_B (1 << TW68_SBMODE)
+#define TW68_WREN_B (1 << TW68_WREN)
+#define TW68_SSCLK_B (1 << TW68_SSCLK)
+#define TW68_SSDAT_B (1 << TW68_SSDAT)
+#define TW68_SBRW_B (1 << TW68_SBRW)
+
+#define TW68_GPDATA 0x100
+#define TW68_STATUS1 0x204
+#define TW68_INFORM 0x208
+#define TW68_OPFORM 0x20C
+#define TW68_HSYNC 0x210
+#define TW68_ACNTL 0x218
+#define TW68_CROP_HI 0x21C
+#define TW68_VDELAY_LO 0x220
+#define TW68_VACTIVE_LO 0x224
+#define TW68_HDELAY_LO 0x228
+#define TW68_HACTIVE_LO 0x22C
+#define TW68_CNTRL1 0x230
+#define TW68_VSCALE_LO 0x234
+#define TW68_SCALE_HI 0x238
+#define TW68_HSCALE_LO 0x23C
+#define TW68_BRIGHT 0x240
+#define TW68_CONTRAST 0x244
+#define TW68_SHARPNESS 0x248
+#define TW68_SAT_U 0x24C
+#define TW68_SAT_V 0x250
+#define TW68_HUE 0x254
+#define TW68_SHARP2 0x258
+#define TW68_VSHARP 0x25C
+#define TW68_CORING 0x260
+#define TW68_VBICNTL 0x264
+#define TW68_CNTRL2 0x268
+#define TW68_CC_DATA 0x26C
+#define TW68_SDT 0x270
+#define TW68_SDTR 0x274
+#define TW68_RESERV2 0x278
+#define TW68_RESERV3 0x27C
+#define TW68_CLMPG 0x280
+#define TW68_IAGC 0x284
+#define TW68_AGCGAIN 0x288
+#define TW68_PEAKWT 0x28C
+#define TW68_CLMPL 0x290
+#define TW68_SYNCT 0x294
+#define TW68_MISSCNT 0x298
+#define TW68_PCLAMP 0x29C
+#define TW68_VCNTL1 0x2A0
+#define TW68_VCNTL2 0x2A4
+#define TW68_CKILL 0x2A8
+#define TW68_COMB 0x2AC
+#define TW68_LDLY 0x2B0
+#define TW68_MISC1 0x2B4
+#define TW68_LOOP 0x2B8
+#define TW68_MISC2 0x2BC
+#define TW68_MVSN 0x2C0
+#define TW68_STATUS2 0x2C4
+#define TW68_HFREF 0x2C8
+#define TW68_CLMD 0x2CC
+#define TW68_IDCNTL 0x2D0
+#define TW68_CLCNTL1 0x2D4
+
+/* Audio */
+#define TW68_ACKI1 0x300
+#define TW68_ACKI2 0x304
+#define TW68_ACKI3 0x308
+#define TW68_ACKN1 0x30C
+#define TW68_ACKN2 0x310
+#define TW68_ACKN3 0x314
+#define TW68_SDIV 0x318
+#define TW68_LRDIV 0x31C
+#define TW68_ACCNTL 0x320
+
+#define TW68_VSCTL 0x3B8
+#define TW68_CHROMAGVAL 0x3BC
+
+#define TW68_F2CROP_HI 0x3DC
+#define TW68_F2VDELAY_LO 0x3E0
+#define TW68_F2VACTIVE_LO 0x3E4
+#define TW68_F2HDELAY_LO 0x3E8
+#define TW68_F2HACTIVE_LO 0x3EC
+#define TW68_F2CNT 0x3F0
+#define TW68_F2VSCALE_LO 0x3F4
+#define TW68_F2SCALE_HI 0x3F8
+#define TW68_F2HSCALE_LO 0x3FC
+
+#define RISC_INT_BIT 0x08000000
+#define RISC_SYNCO 0xC0000000
+#define RISC_SYNCE 0xD0000000
+#define RISC_JUMP 0xB0000000
+#define RISC_LINESTART 0x90000000
+#define RISC_INLINE 0xA0000000
+
+#define VideoFormatNTSC 0
+#define VideoFormatNTSCJapan 0
+#define VideoFormatPALBDGHI 1
+#define VideoFormatSECAM 2
+#define VideoFormatNTSC443 3
+#define VideoFormatPALM 4
+#define VideoFormatPALN 5
+#define VideoFormatPALNC 5
+#define VideoFormatPAL60 6
+#define VideoFormatAuto 7
+
+#define ColorFormatRGB32 0x00
+#define ColorFormatRGB24 0x10
+#define ColorFormatRGB16 0x20
+#define ColorFormatRGB15 0x30
+#define ColorFormatYUY2 0x40
+#define ColorFormatBSWAP 0x04
+#define ColorFormatWSWAP 0x08
+#define ColorFormatGamma 0x80
+#endif
--- /dev/null
+/*
+ * tw68_risc.c
+ * Part of the device driver for Techwell 68xx based cards
+ *
+ * Much of this code is derived from the cx88 and sa7134 drivers, which
+ * were in turn derived from the bt87x driver. The original work was by
+ * Gerd Knorr; more recently the code was enhanced by Mauro Carvalho Chehab,
+ * Hans Verkuil, Andy Walls and many others. Their work is gratefully
+ * acknowledged. Full credit goes to them - any problems within this code
+ * are mine.
+ *
+ * Copyright (C) 2009 William M. Brack <wbrack@mmm.com.hk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "tw68.h"
+
+#define NO_SYNC_LINE (-1U)
+
+/**
+ * @rp pointer to current risc program position
+ * @sglist pointer to "scatter-gather list" of buffer pointers
+ * @offset offset to target memory buffer
+ * @sync_line 0 -> no sync, 1 -> odd sync, 2 -> even sync
+ * @bpl number of bytes per scan line
+ * @padding number of bytes of padding to add
+ * @lines number of lines in field
+ * @lpi lines per IRQ, or 0 to not generate irqs
+ * Note: IRQ to be generated _after_ lpi lines are transferred
+ */
+static __le32 *tw68_risc_field(__le32 *rp, struct scatterlist *sglist,
+ unsigned int offset, u32 sync_line,
+ unsigned int bpl, unsigned int padding,
+ unsigned int lines, unsigned int lpi)
+{
+ struct scatterlist *sg;
+ unsigned int line, todo, done;
+
+ /* sync instruction */
+ if (sync_line != NO_SYNC_LINE) {
+ if (sync_line == 1)
+ *(rp++) = cpu_to_le32(RISC_SYNCO);
+ else
+ *(rp++) = cpu_to_le32(RISC_SYNCE);
+ *(rp++) = 0;
+ }
+ /* scan lines */
+ sg = sglist;
+ for (line = 0; line < lines; line++) {
+ /* calculate next starting position */
+ while (offset && offset >= sg_dma_len(sg)) {
+ offset -= sg_dma_len(sg);
+ sg++;
+ }
+ if (bpl <= sg_dma_len(sg) - offset) {
+ /* fits into current chunk */
+ *(rp++) = cpu_to_le32(RISC_LINESTART |
+ /* (offset<<12) |*/ bpl);
+ *(rp++) = cpu_to_le32(sg_dma_address(sg) + offset);
+ offset += bpl;
+ } else {
+ /*
+ * scanline needs to be split. Put the start in
+ * whatever memory remains using RISC_LINESTART,
+ * then the remainder into following addresses
+ * given by the scatter-gather list.
+ */
+ todo = bpl; /* one full line to be done */
+ /* first fragment */
+ done = (sg_dma_len(sg) - offset);
+ *(rp++) = cpu_to_le32(RISC_LINESTART |
+ (7 << 24) |
+ done);
+ *(rp++) = cpu_to_le32(sg_dma_address(sg) + offset);
+ todo -= done;
+ sg++;
+ /* succeeding fragments have no offset */
+ while (todo > sg_dma_len(sg)) {
+ *(rp++) = cpu_to_le32(RISC_INLINE |
+ (done << 12) |
+ sg_dma_len(sg));
+ *(rp++) = cpu_to_le32(sg_dma_address(sg));
+ todo -= sg_dma_len(sg);
+ sg++;
+ done += sg_dma_len(sg);
+ }
+ if (todo) {
+ /* final chunk - offset 0, count 'todo' */
+ *(rp++) = cpu_to_le32(RISC_INLINE |
+ (done << 12) |
+ todo);
+ *(rp++) = cpu_to_le32(sg_dma_address(sg));
+ }
+ offset = todo;
+ }
+ offset += padding;
+ /* If this line needs an interrupt, put it in */
+ if (lpi && line > 0 && !(line % lpi))
+ *(rp-2) |= RISC_INT_BIT;
+ }
+
+ return rp;
+}
+
+/**
+ * tw68_risc_buffer
+ *
+ * This routine is called by tw68-video. It allocates
+ * memory for the dma controller "program" and then fills in that
+ * memory with the appropriate "instructions".
+ *
+ * @pci_dev structure with info about the pci
+ * slot which our device is in.
+ * @risc structure with info about the memory
+ * used for our controller program.
+ * @sglist scatter-gather list entry
+ * @top_offset offset within the risc program area for the
+ * first odd frame line
+ * @bottom_offset offset within the risc program area for the
+ * first even frame line
+ * @bpl number of data bytes per scan line
+ * @padding number of extra bytes to add at end of line
+ * @lines number of scan lines
+ */
+int tw68_risc_buffer(struct pci_dev *pci,
+ struct btcx_riscmem *risc,
+ struct scatterlist *sglist,
+ unsigned int top_offset,
+ unsigned int bottom_offset,
+ unsigned int bpl,
+ unsigned int padding,
+ unsigned int lines)
+{
+ u32 instructions, fields;
+ __le32 *rp;
+ int rc;
+
+ fields = 0;
+ if (UNSET != top_offset)
+ fields++;
+ if (UNSET != bottom_offset)
+ fields++;
+ /*
+ * estimate risc mem: worst case is one write per page border +
+ * one write per scan line + syncs + jump (all 2 dwords).
+ * Padding can cause next bpl to start close to a page border.
+ * First DMA region may be smaller than PAGE_SIZE
+ */
+ instructions = fields * (1 + (((bpl + padding) * lines) /
+ PAGE_SIZE) + lines) + 2;
+ rc = btcx_riscmem_alloc(pci, risc, instructions * 8);
+ if (rc < 0)
+ return rc;
+
+ /* write risc instructions */
+ rp = risc->cpu;
+ if (UNSET != top_offset) /* generates SYNCO */
+ rp = tw68_risc_field(rp, sglist, top_offset, 1,
+ bpl, padding, lines, 0);
+ if (UNSET != bottom_offset) /* generates SYNCE */
+ rp = tw68_risc_field(rp, sglist, bottom_offset, 2,
+ bpl, padding, lines, 0);
+
+ /* save pointer to jmp instruction address */
+ risc->jmp = rp;
+ /* assure risc buffer hasn't overflowed */
+ BUG_ON((risc->jmp - risc->cpu + 2) * sizeof(*risc->cpu) > risc->size);
+ return 0;
+}
+
+#if 0
+/* ------------------------------------------------------------------ */
+/* debug helper code */
+
+static void tw68_risc_decode(u32 risc, u32 addr)
+{
+#define RISC_OP(reg) (((reg) >> 28) & 7)
+ static struct instr_details {
+ char *name;
+ u8 has_data_type;
+ u8 has_byte_info;
+ u8 has_addr;
+ } instr[8] = {
+ [RISC_OP(RISC_SYNCO)] = {"syncOdd", 0, 0, 0},
+ [RISC_OP(RISC_SYNCE)] = {"syncEven", 0, 0, 0},
+ [RISC_OP(RISC_JUMP)] = {"jump", 0, 0, 1},
+ [RISC_OP(RISC_LINESTART)] = {"lineStart", 1, 1, 1},
+ [RISC_OP(RISC_INLINE)] = {"inline", 1, 1, 1},
+ };
+ u32 p;
+
+ p = RISC_OP(risc);
+ if (!(risc & 0x80000000) || !instr[p].name) {
+ printk(KERN_DEBUG "0x%08x [ INVALID ]\n", risc);
+ return;
+ }
+ printk(KERN_DEBUG "0x%08x %-9s IRQ=%d",
+ risc, instr[p].name, (risc >> 27) & 1);
+ if (instr[p].has_data_type)
+ printk(KERN_DEBUG " Type=%d", (risc >> 24) & 7);
+ if (instr[p].has_byte_info)
+ printk(KERN_DEBUG " Start=0x%03x Count=%03u",
+ (risc >> 12) & 0xfff, risc & 0xfff);
+ if (instr[p].has_addr)
+ printk(KERN_DEBUG " StartAddr=0x%08x", addr);
+ printk(KERN_DEBUG "\n");
+}
+
+void tw68_risc_program_dump(struct tw68_core *core,
+ struct btcx_riscmem *risc)
+{
+ __le32 *addr;
+
+ printk(KERN_DEBUG "%s: risc_program_dump: risc=%p, "
+ "risc->cpu=0x%p, risc->jmp=0x%p\n",
+ core->name, risc, risc->cpu, risc->jmp);
+ for (addr = risc->cpu; addr <= risc->jmp; addr += 2)
+ tw68_risc_decode(*addr, *(addr+1));
+}
+EXPORT_SYMBOL_GPL(tw68_risc_program_dump);
+#endif
+
+/*
+ * tw68_risc_stopper
+ * Normally, the risc code generated for a buffer ends with a
+ * JUMP instruction to direct the DMAP processor to the code for
+ * the next buffer. However, when there is no additional buffer
+ * currently available, the code instead jumps to this routine.
+ *
+ * My first try for a "stopper" program was just a simple
+ * "jump to self" instruction. Unfortunately, this caused the
+ * video FIFO to overflow. My next attempt was to just disable
+ * the DMAP processor. Unfortunately, this caused the video
+ * decoder to lose its synchronization. The solution to this was to
+ * add a "Sync-Odd" instruction, which "eats" all the video data
+ * until the start of the next odd field.
+ */
+int tw68_risc_stopper(struct pci_dev *pci, struct btcx_riscmem *risc)
+{
+ __le32 *rp;
+ int rc;
+
+ rc = btcx_riscmem_alloc(pci, risc, 8*4);
+ if (rc < 0)
+ return rc;
+
+ /* write risc inststructions */
+ rp = risc->cpu;
+ *(rp++) = cpu_to_le32(RISC_SYNCO);
+ *(rp++) = 0;
+ *(rp++) = cpu_to_le32(RISC_JUMP);
+ *(rp++) = cpu_to_le32(risc->dma);
+ risc->jmp = risc->cpu;
+ return 0;
+}
--- /dev/null
+/*
+ * tw68_ts.c
+ * Part of the device driver for Techwell 68xx based cards
+ *
+ * Much of this code is derived from the cx88 and sa7134 drivers, which
+ * were in turn derived from the bt87x driver. The original work was by
+ * Gerd Knorr; more recently the code was enhanced by Mauro Carvalho Chehab,
+ * Hans Verkuil, Andy Walls and many others. Their work is gratefully
+ * acknowledged. Full credit goes to them - any problems within this code
+ * are mine.
+ *
+ * Copyright (C) 2009 William M. Brack <wbrack@mmm.com.hk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "tw68.h"
+
+int tw68_ts_init1(struct tw68_dev *dev)
+{
+ return 0;
+}
+
+int tw68_ts_ini(struct tw68_dev *dev)
+{
+ return 0;
+}
+
+int tw68_ts_fini(struct tw68_dev *dev)
+{
+ return 0;
+}
+
+void tw68_irq_ts_done(struct tw68_dev *dev, unsigned long status)
+{
+ return;
+}
+
+int tw68_ts_register(struct tw68_mpeg_ops *ops)
+{
+ return 0;
+}
+
+void tw68_ts_unregister(struct tw68_mpeg_ops *ops)
+{
+ return;
+}
+
+int tw68_ts_init_hw(struct tw68_dev *dev)
+{
+ return 0;
+}
+
+
--- /dev/null
+/*
+ * tw68_controls.c
+ * Part of the device driver for Techwell 68xx based cards
+ *
+ * Much of this code is derived from the cx88 and sa7134 drivers, which
+ * were in turn derived from the bt87x driver. The original work was by
+ * Gerd Knorr; more recently the code was enhanced by Mauro Carvalho Chehab,
+ * Hans Verkuil, Andy Walls and many others. Their work is gratefully
+ * acknowledged. Full credit goes to them - any problems within this code
+ * are mine.
+ *
+ * Copyright (C) 2009 William M. Brack <wbrack@mmm.com.hk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "tw68.h"
+
+int tw68_tvaudio_rx2mode(u32 rx)
+{
+ return 0;
+}
+
+void tw68_tvaudio_setmute(struct tw68_dev *dev)
+{
+ return;
+}
+
+void tw68_tvaudio_setinput(struct tw68_dev *dev, struct tw68_input *in)
+{
+ return;
+}
+
+void tw68_tvaudio_setvolume(struct tw68_dev *dev, int level)
+{
+ return;
+}
+
+int tw68_tvaudio_getstereo(struct tw68_dev *dev)
+{
+ return 0;
+}
+
+void tw68_tvaudio_init(struct tw68_dev *dev)
+{
+ return;
+}
+
+int tw68_tvaudio_init2(struct tw68_dev *dev)
+{
+ return 0;
+}
+
+int tw68_tvaudio_fini(struct tw68_dev *dev)
+{
+ return 0;
+}
+
+int tw68_tvaudio_do_scan(struct tw68_dev *dev)
+{
+ return 0;
+}
+
+void tw68_enable_i2s(struct tw68_dev *dev)
+{
+ return;
+}
+
--- /dev/null
+/*
+ * tw68_controls.c
+ * Part of the device driver for Techwell 68xx based cards
+ *
+ * Much of this code is derived from the cx88 and sa7134 drivers, which
+ * were in turn derived from the bt87x driver. The original work was by
+ * Gerd Knorr; more recently the code was enhanced by Mauro Carvalho Chehab,
+ * Hans Verkuil, Andy Walls and many others. Their work is gratefully
+ * acknowledged. Full credit goes to them - any problems within this code
+ * are mine.
+ *
+ * Copyright (C) 2009 William M. Brack <wbrack@mmm.com.hk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "tw68.h"
+
+static int buffer_setup(struct videobuf_queue *q, unsigned int *count,
+ unsigned int *size) {
+ printk(KERN_INFO "%s: shouldn't be here!\n", __func__);
+ return 0;
+}
+static int buffer_prepare(struct videobuf_queue *q,
+ struct videobuf_buffer *vb,
+ enum v4l2_field field)
+{
+ printk(KERN_INFO "%s: shouldn't be here!\n", __func__);
+ return 0;
+}
+static void buffer_queue(struct videobuf_queue *q,
+ struct videobuf_buffer *vb)
+{
+ printk(KERN_INFO "%s: shouldn't be here!\n", __func__);
+}
+static void buffer_release(struct videobuf_queue *q,
+ struct videobuf_buffer *vb)
+{
+ printk(KERN_INFO "%s: shouldn't be here!\n", __func__);
+}
+struct videobuf_queue_ops tw68_vbi_qops = {
+ .buf_setup = buffer_setup,
+ .buf_prepare = buffer_prepare,
+ .buf_queue = buffer_queue,
+ .buf_release = buffer_release,
+};
+
+/* ------------------------------------------------------------------ */
+
+int tw68_vbi_init1(struct tw68_dev *dev)
+{
+ return 0;
+}
+
+int tw68_vbi_fini(struct tw68_dev *dev)
+{
+ return 0;
+}
+
+void tw68_irq_vbi_done(struct tw68_dev *dev, unsigned long status)
+{
+ return;
+}
+
--- /dev/null
+/*
+ * tw68 functions to handle video data
+ *
+ * Much of this code is derived from the cx88 and sa7134 drivers, which
+ * were in turn derived from the bt87x driver. The original work was by
+ * Gerd Knorr; more recently the code was enhanced by Mauro Carvalho Chehab,
+ * Hans Verkuil, Andy Walls and many others. Their work is gratefully
+ * acknowledged. Full credit goes to them - any problems within this code
+ * are mine.
+ *
+ * Copyright (C) 2009 William M. Brack <wbrack@mmm.com.hk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <linux/module.h>
+#include <media/v4l2-common.h>
+#include <linux/sort.h>
+
+#include "tw68.h"
+#include "tw68-reg.h"
+
+unsigned int video_debug;
+
+static unsigned int gbuffers = 8;
+static unsigned int noninterlaced; /* 0 */
+static unsigned int gbufsz = 768*576*4;
+static unsigned int gbufsz_max = 768*576*4;
+static char secam[] = "--";
+
+module_param(video_debug, int, 0644);
+MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
+module_param(gbuffers, int, 0444);
+MODULE_PARM_DESC(gbuffers, "number of capture buffers, range 2-32");
+module_param(noninterlaced, int, 0644);
+MODULE_PARM_DESC(noninterlaced, "capture non interlaced video");
+module_param_string(secam, secam, sizeof(secam), 0644);
+MODULE_PARM_DESC(secam, "force SECAM variant, either DK,L or Lc");
+
+#define dprintk(level, fmt, arg...) if (video_debug & (level)) \
+ printk(KERN_DEBUG "%s/0: " fmt, dev->name , ## arg)
+
+/* ------------------------------------------------------------------ */
+/* data structs for video */
+/*
+ * FIXME -
+ * Note that the saa7134 has formats, e.g. YUV420, which are classified
+ * as "planar". These affect overlay mode, and are flagged with a field
+ * ".planar" in the format. Do we need to implement this in this driver?
+ */
+static struct tw68_format formats[] = {
+ {
+ .name = "15 bpp RGB, le",
+ .fourcc = V4L2_PIX_FMT_RGB555,
+ .depth = 16,
+ .twformat = ColorFormatRGB15,
+ }, {
+ .name = "15 bpp RGB, be",
+ .fourcc = V4L2_PIX_FMT_RGB555X,
+ .depth = 16,
+ .twformat = ColorFormatRGB15 | ColorFormatBSWAP,
+ }, {
+ .name = "16 bpp RGB, le",
+ .fourcc = V4L2_PIX_FMT_RGB565,
+ .depth = 16,
+ .twformat = ColorFormatRGB16,
+ }, {
+ .name = "16 bpp RGB, be",
+ .fourcc = V4L2_PIX_FMT_RGB565X,
+ .depth = 16,
+ .twformat = ColorFormatRGB16 | ColorFormatBSWAP,
+ }, {
+ .name = "24 bpp RGB, le",
+ .fourcc = V4L2_PIX_FMT_BGR24,
+ .depth = 24,
+ .twformat = ColorFormatRGB24,
+ }, {
+ .name = "24 bpp RGB, be",
+ .fourcc = V4L2_PIX_FMT_RGB24,
+ .depth = 24,
+ .twformat = ColorFormatRGB24 | ColorFormatBSWAP,
+ }, {
+ .name = "32 bpp RGB, le",
+ .fourcc = V4L2_PIX_FMT_BGR32,
+ .depth = 32,
+ .twformat = ColorFormatRGB32,
+ }, {
+ .name = "32 bpp RGB, be",
+ .fourcc = V4L2_PIX_FMT_RGB32,
+ .depth = 32,
+ .twformat = ColorFormatRGB32 | ColorFormatBSWAP |
+ ColorFormatWSWAP,
+ }, {
+ .name = "4:2:2 packed, YUYV",
+ .fourcc = V4L2_PIX_FMT_YUYV,
+ .depth = 16,
+ .twformat = ColorFormatYUY2,
+ }, {
+ .name = "4:2:2 packed, UYVY",
+ .fourcc = V4L2_PIX_FMT_UYVY,
+ .depth = 16,
+ .twformat = ColorFormatYUY2 | ColorFormatBSWAP,
+ }
+};
+#define FORMATS ARRAY_SIZE(formats)
+
+#define NORM_625_50 \
+ .h_delay = 3, \
+ .h_delay0 = 133, \
+ .h_start = 0, \
+ .h_stop = 719, \
+ .v_delay = 24, \
+ .vbi_v_start_0 = 7, \
+ .vbi_v_stop_0 = 22, \
+ .video_v_start = 24, \
+ .video_v_stop = 311, \
+ .vbi_v_start_1 = 319
+
+#define NORM_525_60 \
+ .h_delay = 8, \
+ .h_delay0 = 138, \
+ .h_start = 0, \
+ .h_stop = 719, \
+ .v_delay = 22, \
+ .vbi_v_start_0 = 10, \
+ .vbi_v_stop_0 = 21, \
+ .video_v_start = 22, \
+ .video_v_stop = 262, \
+ .vbi_v_start_1 = 273
+
+/*
+ * The following table is searched by tw68_s_std, first for a specific
+ * match, then for an entry which contains the desired id. The table
+ * entries should therefore be ordered in ascending order of specificity.
+ */
+static struct tw68_tvnorm tvnorms[] = {
+ {
+ .name = "PAL-BG",
+ .id = V4L2_STD_PAL_BG,
+ NORM_625_50,
+
+ .sync_control = 0x18,
+ .luma_control = 0x40,
+ .chroma_ctrl1 = 0x81,
+ .chroma_gain = 0x2a,
+ .chroma_ctrl2 = 0x06,
+ .vgate_misc = 0x1c,
+ .format = VideoFormatPALBDGHI,
+
+ }, {
+ .name = "PAL-I",
+ .id = V4L2_STD_PAL_I,
+ NORM_625_50,
+
+ .sync_control = 0x18,
+ .luma_control = 0x40,
+ .chroma_ctrl1 = 0x81,
+ .chroma_gain = 0x2a,
+ .chroma_ctrl2 = 0x06,
+ .vgate_misc = 0x1c,
+ .format = VideoFormatPALBDGHI,
+
+ }, {
+ .name = "PAL-DK",
+ .id = V4L2_STD_PAL_DK,
+ NORM_625_50,
+
+ .sync_control = 0x18,
+ .luma_control = 0x40,
+ .chroma_ctrl1 = 0x81,
+ .chroma_gain = 0x2a,
+ .chroma_ctrl2 = 0x06,
+ .vgate_misc = 0x1c,
+ .format = VideoFormatPALBDGHI,
+
+ }, {
+ .name = "PAL", /* autodetect */
+ .id = V4L2_STD_PAL,
+ NORM_625_50,
+
+ .sync_control = 0x18,
+ .luma_control = 0x40,
+ .chroma_ctrl1 = 0x81,
+ .chroma_gain = 0x2a,
+ .chroma_ctrl2 = 0x06,
+ .vgate_misc = 0x1c,
+ .format = VideoFormatPALBDGHI,
+
+ }, {
+ .name = "NTSC",
+ .id = V4L2_STD_NTSC,
+ NORM_525_60,
+
+ .sync_control = 0x59,
+ .luma_control = 0x40,
+ .chroma_ctrl1 = 0x89,
+ .chroma_gain = 0x2a,
+ .chroma_ctrl2 = 0x0e,
+ .vgate_misc = 0x18,
+ .format = VideoFormatNTSC,
+
+ }, {
+ .name = "SECAM-DK",
+ .id = V4L2_STD_SECAM_DK,
+ NORM_625_50,
+
+ .sync_control = 0x18,
+ .luma_control = 0x1b,
+ .chroma_ctrl1 = 0xd1,
+ .chroma_gain = 0x80,
+ .chroma_ctrl2 = 0x00,
+ .vgate_misc = 0x1c,
+ .format = VideoFormatSECAM,
+
+ }, {
+ .name = "SECAM-L",
+ .id = V4L2_STD_SECAM_L,
+ NORM_625_50,
+
+ .sync_control = 0x18,
+ .luma_control = 0x1b,
+ .chroma_ctrl1 = 0xd1,
+ .chroma_gain = 0x80,
+ .chroma_ctrl2 = 0x00,
+ .vgate_misc = 0x1c,
+ .format = VideoFormatSECAM,
+
+ }, {
+ .name = "SECAM-LC",
+ .id = V4L2_STD_SECAM_LC,
+ NORM_625_50,
+
+ .sync_control = 0x18,
+ .luma_control = 0x1b,
+ .chroma_ctrl1 = 0xd1,
+ .chroma_gain = 0x80,
+ .chroma_ctrl2 = 0x00,
+ .vgate_misc = 0x1c,
+ .format = VideoFormatSECAM,
+
+ }, {
+ .name = "SECAM",
+ .id = V4L2_STD_SECAM,
+ NORM_625_50,
+
+ .sync_control = 0x18,
+ .luma_control = 0x1b,
+ .chroma_ctrl1 = 0xd1,
+ .chroma_gain = 0x80,
+ .chroma_ctrl2 = 0x00,
+ .vgate_misc = 0x1c,
+ .format = VideoFormatSECAM,
+
+ }, {
+ .name = "PAL-M",
+ .id = V4L2_STD_PAL_M,
+ NORM_525_60,
+
+ .sync_control = 0x59,
+ .luma_control = 0x40,
+ .chroma_ctrl1 = 0xb9,
+ .chroma_gain = 0x2a,
+ .chroma_ctrl2 = 0x0e,
+ .vgate_misc = 0x18,
+ .format = VideoFormatPALM,
+
+ }, {
+ .name = "PAL-Nc",
+ .id = V4L2_STD_PAL_Nc,
+ NORM_625_50,
+
+ .sync_control = 0x18,
+ .luma_control = 0x40,
+ .chroma_ctrl1 = 0xa1,
+ .chroma_gain = 0x2a,
+ .chroma_ctrl2 = 0x06,
+ .vgate_misc = 0x1c,
+ .format = VideoFormatPALNC,
+
+ }, {
+ .name = "PAL-60",
+ .id = V4L2_STD_PAL_60,
+ .h_delay = 186,
+ .h_start = 0,
+ .h_stop = 719,
+ .v_delay = 26,
+ .video_v_start = 23,
+ .video_v_stop = 262,
+ .vbi_v_start_0 = 10,
+ .vbi_v_stop_0 = 21,
+ .vbi_v_start_1 = 273,
+
+ .sync_control = 0x18,
+ .luma_control = 0x40,
+ .chroma_ctrl1 = 0x81,
+ .chroma_gain = 0x2a,
+ .chroma_ctrl2 = 0x06,
+ .vgate_misc = 0x1c,
+ .format = VideoFormatPAL60,
+
+ }, {
+/*
+ * FIXME: The following are meant to be "catch-all", and need
+ * to be further thought out!
+ */
+ .name = "STD-525-60",
+ .id = V4L2_STD_525_60,
+ NORM_525_60,
+
+ .sync_control = 0x59,
+ .luma_control = 0x40,
+ .chroma_ctrl1 = 0x89,
+ .chroma_gain = 0x2a,
+ .chroma_ctrl2 = 0x0e,
+ .vgate_misc = 0x18,
+ .format = VideoFormatNTSC,
+
+ }, {
+ .name = "STD-625-50",
+ .id = V4L2_STD_625_50,
+ NORM_625_50,
+
+ .sync_control = 0x18,
+ .luma_control = 0x40,
+ .chroma_ctrl1 = 0x81,
+ .chroma_gain = 0x2a,
+ .chroma_ctrl2 = 0x06,
+ .vgate_misc = 0x1c,
+ .format = VideoFormatPALBDGHI,
+ }
+};
+#define TVNORMS ARRAY_SIZE(tvnorms)
+
+static const struct v4l2_queryctrl no_ctrl = {
+ .name = "42",
+ .flags = V4L2_CTRL_FLAG_DISABLED,
+};
+static const struct v4l2_queryctrl video_ctrls[] = {
+ /* --- video --- */
+ {
+ .id = V4L2_CID_BRIGHTNESS,
+ .name = "Brightness",
+ .minimum = -128,
+ .maximum = 127,
+ .step = 1,
+ .default_value = 20,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ }, {
+ .id = V4L2_CID_CONTRAST,
+ .name = "Contrast",
+ .minimum = 0,
+ .maximum = 255,
+ .step = 1,
+ .default_value = 100,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ }, {
+ .id = V4L2_CID_SATURATION,
+ .name = "Saturation",
+ .minimum = 0,
+ .maximum = 255,
+ .step = 1,
+ .default_value = 128,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ }, {
+ .id = V4L2_CID_HUE,
+ .name = "Hue",
+ .minimum = -128,
+ .maximum = 127,
+ .step = 1,
+ .default_value = 0,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ }, {
+ .id = V4L2_CID_COLOR_KILLER,
+ .name = "Color Killer",
+ .minimum = 0,
+ .maximum = 1,
+ .default_value = 1,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ }, {
+ .id = V4L2_CID_CHROMA_AGC,
+ .name = "Chroma AGC",
+ .minimum = 0,
+ .maximum = 1,
+ .default_value = 1,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ },
+ /* --- audio --- */
+ {
+ .id = V4L2_CID_AUDIO_MUTE,
+ .name = "Mute",
+ .minimum = 0,
+ .maximum = 1,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ }, {
+ .id = V4L2_CID_AUDIO_VOLUME,
+ .name = "Volume",
+ .minimum = -15,
+ .maximum = 15,
+ .step = 1,
+ .default_value = 0,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ }
+};
+static const unsigned int CTRLS = ARRAY_SIZE(video_ctrls);
+
+/*
+ * Routine to lookup a control by its ID, and return a pointer
+ * to the entry in the video_ctrls array for that control.
+ */
+static const struct v4l2_queryctrl *ctrl_by_id(unsigned int id)
+{
+ unsigned int i;
+
+ for (i = 0; i < CTRLS; i++)
+ if (video_ctrls[i].id == id)
+ return video_ctrls+i;
+ return NULL;
+}
+
+static struct tw68_format *format_by_fourcc(unsigned int fourcc)
+{
+ unsigned int i;
+
+ for (i = 0; i < FORMATS; i++)
+ if (formats[i].fourcc == fourcc)
+ return formats+i;
+ return NULL;
+}
+
+/* ----------------------------------------------------------------------- */
+/* resource management */
+
+static int res_get(struct tw68_fh *fh, unsigned int bit)
+{
+ struct tw68_dev *dev = fh->dev;
+
+ if (fh->resources & bit)
+ /* have it already allocated */
+ return 1;
+
+ /* is it free? */
+ mutex_lock(&dev->lock);
+ if (dev->resources & bit) {
+ /* no, someone else uses it */
+ mutex_unlock(&fh->dev->lock);
+ return 0;
+ }
+ /* it's free, grab it */
+ fh->resources |= bit;
+ dev->resources |= bit;
+ dprintk(DBG_FLOW, "%s: %d\n", __func__, bit);
+ mutex_unlock(&dev->lock);
+ return 1;
+}
+
+static int res_check(struct tw68_fh *fh, unsigned int bit)
+{
+ return fh->resources & bit;
+}
+
+static int res_locked(struct tw68_dev *dev, unsigned int bit)
+{
+ return dev->resources & bit;
+}
+
+static void res_free(struct tw68_fh *fh,
+ unsigned int bits)
+{
+ struct tw68_dev *dev = fh->dev;
+
+ BUG_ON((fh->resources & bits) != bits);
+
+ mutex_lock(&fh->dev->lock);
+ fh->resources &= ~bits;
+ fh->dev->resources &= ~bits;
+ dprintk(DBG_FLOW, "%s: %d\n", __func__, bits);
+ mutex_unlock(&fh->dev->lock);
+}
+
+/* ------------------------------------------------------------------ */
+/*
+ * Note that the cropping rectangles are described in terms of a single
+ * frame, i.e. line positions are only 1/2 the interlaced equivalent
+ */
+static void set_tvnorm(struct tw68_dev *dev, struct tw68_tvnorm *norm)
+{
+ dprintk(DBG_FLOW, "%s: %s\n", __func__, norm->name);
+ dev->tvnorm = norm;
+
+ /* setup cropping */
+ dev->crop_bounds.left = norm->h_start;
+ dev->crop_defrect.left = norm->h_start;
+ dev->crop_bounds.width = norm->h_stop - norm->h_start + 1;
+ dev->crop_defrect.width = norm->h_stop - norm->h_start + 1;
+
+ dev->crop_bounds.top = norm->video_v_start;
+ dev->crop_defrect.top = norm->video_v_start;
+ dev->crop_bounds.height = (((norm->id & V4L2_STD_525_60) ?
+ 524 : 624)) / 2 - dev->crop_bounds.top;
+ dev->crop_defrect.height = (norm->video_v_stop -
+ norm->video_v_start + 1);
+
+ dev->crop_current = dev->crop_defrect;
+
+ if (norm != dev->tvnorm) {
+ dev->tvnorm = norm;
+ tw68_set_tvnorm_hw(dev);
+ }
+}
+
+static void video_mux(struct tw68_dev *dev, int input)
+{
+ dprintk(DBG_FLOW, "%s: input = %d [%s]\n", __func__, input,
+ card_in(dev, input).name);
+ /*
+ * dev->input shows current application request,
+ * dev->hw_input shows current hardware setting
+ */
+ dev->input = &card_in(dev, input);
+ tw68_tvaudio_setinput(dev, &card_in(dev, input));
+}
+
+/*
+ * tw68_set_scale
+ *
+ * Scaling and Cropping for video decoding
+ *
+ * We are working with 3 values for horizontal and vertical - scale,
+ * delay and active.
+ *
+ * HACTIVE represent the actual number of pixels in the "usable" image,
+ * before scaling. HDELAY represents the number of pixels skipped
+ * between the start of the horizontal sync and the start of the image.
+ * HSCALE is calculated using the formula
+ * HSCALE = (HACTIVE / (#pixels desired)) * 256
+ *
+ * The vertical registers are similar, except based upon the total number
+ * of lines in the image, and the first line of the image (i.e. ignoring
+ * vertical sync and VBI).
+ *
+ * Note that the number of bytes reaching the FIFO (and hence needing
+ * to be processed by the DMAP program) is completely dependent upon
+ * these values, especially HSCALE.
+ *
+ * Parameters:
+ * @dev pointer to the device structure, needed for
+ * getting current norm (as well as debug print)
+ * @width actual image width (from user buffer)
+ * @height actual image height
+ * @field indicates Top, Bottom or Interlaced
+ */
+static int tw68_set_scale(struct tw68_dev *dev, unsigned int width,
+ unsigned int height, enum v4l2_field field)
+{
+
+ /* set individually for debugging clarity */
+ int hactive, hdelay, hscale;
+ int vactive, vdelay, vscale;
+ int comb;
+
+ if (V4L2_FIELD_HAS_BOTH(field)) /* if field is interlaced */
+ height /= 2; /* we must set for 1-frame */
+
+ dprintk(DBG_FLOW, "%s: width=%d, height=%d, both=%d\n Crop rect: "
+ "top=%d, left=%d, width=%d height=%d\n"
+ " tvnorm h_delay=%d, h_start=%d, h_stop=%d, "
+ "v_delay=%d, v_start=%d, v_stop=%d\n" , __func__,
+ width, height, V4L2_FIELD_HAS_BOTH(field),
+ dev->crop_bounds.top, dev->crop_bounds.left,
+ dev->crop_bounds.width, dev->crop_bounds.height,
+ dev->tvnorm->h_delay, dev->tvnorm->h_start, dev->tvnorm->h_stop,
+ dev->tvnorm->v_delay, dev->tvnorm->video_v_start,
+ dev->tvnorm->video_v_stop);
+
+ switch (dev->vdecoder) {
+ case TW6800:
+ hdelay = dev->tvnorm->h_delay0;
+ break;
+ default:
+ hdelay = dev->tvnorm->h_delay;
+ break;
+ }
+ hdelay += dev->crop_bounds.left;
+ hactive = dev->crop_bounds.width;
+
+ hscale = (hactive * 256) / (width);
+
+ vdelay = dev->tvnorm->v_delay + dev->crop_bounds.top -
+ dev->crop_defrect.top;
+ vactive = dev->crop_bounds.height;
+ vscale = (vactive * 256) / height;
+
+ dprintk(DBG_FLOW, "%s: %dx%d [%s%s,%s]\n", __func__,
+ width, height,
+ V4L2_FIELD_HAS_TOP(field) ? "T" : "",
+ V4L2_FIELD_HAS_BOTTOM(field) ? "B" : "",
+ v4l2_norm_to_name(dev->tvnorm->id));
+ dprintk(DBG_FLOW, "%s: hactive=%d, hdelay=%d, hscale=%d; "
+ "vactive=%d, vdelay=%d, vscale=%d\n", __func__,
+ hactive, hdelay, hscale, vactive, vdelay, vscale);
+
+ comb = ((vdelay & 0x300) >> 2) |
+ ((vactive & 0x300) >> 4) |
+ ((hdelay & 0x300) >> 6) |
+ ((hactive & 0x300) >> 8);
+ dprintk(DBG_FLOW, "%s: setting CROP_HI=%02x, VDELAY_LO=%02x, "
+ "VACTIVE_LO=%02x, HDELAY_LO=%02x, HACTIVE_LO=%02x\n",
+ __func__, comb, vdelay, vactive, hdelay, hactive);
+ tw_writeb(TW68_CROP_HI, comb);
+ tw_writeb(TW68_VDELAY_LO, vdelay & 0xff);
+ tw_writeb(TW68_VACTIVE_LO, vactive & 0xff);
+ tw_writeb(TW68_HDELAY_LO, hdelay & 0xff);
+ tw_writeb(TW68_HACTIVE_LO, hactive & 0xff);
+
+ comb = ((vscale & 0xf00) >> 4) | ((hscale & 0xf00) >> 8);
+ dprintk(DBG_FLOW, "%s: setting SCALE_HI=%02x, VSCALE_LO=%02x, "
+ "HSCALE_LO=%02x\n", __func__, comb, vscale, hscale);
+ tw_writeb(TW68_SCALE_HI, comb);
+ tw_writeb(TW68_VSCALE_LO, vscale);
+ tw_writeb(TW68_HSCALE_LO, hscale);
+
+ return 0;
+}
+
+/* ------------------------------------------------------------------ */
+
+static int tw68_video_start_dma(struct tw68_dev *dev, struct tw68_dmaqueue *q,
+ struct tw68_buf *buf) {
+
+ dprintk(DBG_FLOW, "%s: Starting risc program\n", __func__);
+ /* Assure correct input */
+ if (dev->hw_input != dev->input) {
+ dev->hw_input = dev->input;
+ tw_andorb(TW68_INFORM, 0x03 << 2, dev->input->vmux << 2);
+ }
+ /* Set cropping and scaling */
+ tw68_set_scale(dev, buf->vb.width, buf->vb.height, buf->vb.field);
+ /*
+ * Set start address for RISC program. Note that if the DMAP
+ * processor is currently running, it must be stopped before
+ * a new address can be set.
+ */
+ tw_clearl(TW68_DMAC, TW68_DMAP_EN);
+ tw_writel(TW68_DMAP_SA, cpu_to_le32(buf->risc.dma));
+ /* Clear any pending interrupts */
+ tw_writel(TW68_INTSTAT, dev->board_virqmask);
+ /* Enable the risc engine and the fifo */
+ tw_andorl(TW68_DMAC, 0xff, buf->fmt->twformat |
+ ColorFormatGamma | TW68_DMAP_EN | TW68_FIFO_EN);
+ dev->pci_irqmask |= dev->board_virqmask;
+ tw_setl(TW68_INTMASK, dev->pci_irqmask);
+ return 0;
+}
+
+/* ------------------------------------------------------------------ */
+/* videobuf queue operations */
+
+/*
+ * check_buf_fmt
+ *
+ * callback from tw68-core buffer_queue to determine whether the
+ * current buffer and the previous one are "compatible" (i.e. the
+ * risc programs can be chained without requiring a format change)
+ */
+static int tw68_check_video_fmt(struct tw68_buf *prev, struct tw68_buf *buf)
+{
+ return (prev->vb.width == buf->vb.width &&
+ prev->vb.height == buf->vb.height &&
+ prev->fmt == buf->fmt);
+}
+
+/*
+ * buffer_setup
+ *
+ * Calculate required size of buffer and maximum number allowed
+ */
+static int
+buffer_setup(struct videobuf_queue *q, unsigned int *count,
+ unsigned int *size)
+{
+ struct tw68_fh *fh = q->priv_data;
+
+ *size = fh->fmt->depth * fh->width * fh->height >> 3;
+ if (0 == *count)
+ *count = gbuffers;
+ *count = tw68_buffer_count(*size, *count);
+ return 0;
+}
+
+static int buffer_activate(struct tw68_dev *dev, struct tw68_buf *buf,
+ struct tw68_buf *next)
+{
+ dprintk(DBG_BUFF, "%s: dev=%p, buf=%p, next=%p\n",
+ __func__, dev, buf, next);
+ if (dev->hw_input != dev->input) {
+ dev->hw_input = dev->input;
+ tw_andorb(TW68_INFORM, 0x03 << 2,
+ dev->hw_input->vmux << 2);
+ }
+ buf->vb.state = VIDEOBUF_ACTIVE;
+ /* TODO - need to assure scaling/cropping are set correctly */
+ mod_timer(&dev->video_q.timeout, jiffies+BUFFER_TIMEOUT);
+ return 0;
+}
+
+/*
+* buffer_prepare
+*
+* Set the ancilliary information into the buffer structure. This
+* includes generating the necessary risc program if it hasn't already
+* been done for the current buffer format.
+* The structure fh contains the details of the format requested by the
+* user - type, width, height and #fields. This is compared with the
+* last format set for the current buffer. If they differ, the risc
+* code (which controls the filling of the buffer) is (re-)generated.
+*/
+static int
+buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
+ enum v4l2_field field)
+{
+ struct tw68_fh *fh = q->priv_data;
+ struct tw68_dev *dev = fh->dev;
+ struct tw68_buf *buf = container_of(vb, struct tw68_buf, vb);
+ struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
+ int rc, init_buffer = 0;
+ unsigned int maxw, maxh;
+
+ BUG_ON(NULL == fh->fmt);
+ maxw = dev->tvnorm->h_stop - dev->tvnorm->h_start + 1;
+ maxh = 2*(dev->tvnorm->video_v_stop - dev->tvnorm->video_v_start + 1);
+ if (fh->width < 48 || fh->width > maxw || fh->height > maxh
+ || fh->height < 16) {
+ dprintk(DBG_UNEXPECTED, "%s: invalid dimensions - "
+ "fh->width=%d, fh->height=%d, maxw=%d, maxh=%d\n",
+ __func__, fh->width, fh->height, maxw, maxh);
+ return -EINVAL;
+ }
+ buf->vb.size = (fh->width * fh->height * (fh->fmt->depth)) >> 3;
+ if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
+ return -EINVAL;
+
+ if (buf->fmt != fh->fmt ||
+ buf->vb.width != fh->width ||
+ buf->vb.height != fh->height ||
+ buf->vb.field != field) {
+ dprintk(DBG_BUFF, "%s: buf - fmt=%p, width=%3d, height=%3d, "
+ "field=%d\n%s: fh - fmt=%p, width=%3d, height=%3d, "
+ "field=%d\n", __func__, buf->fmt, buf->vb.width,
+ buf->vb.height, buf->vb.field, __func__, fh->fmt,
+ fh->width, fh->height, field);
+ buf->fmt = fh->fmt;
+ buf->vb.width = fh->width;
+ buf->vb.height = fh->height;
+ buf->vb.field = field;
+ init_buffer = 1; /* force risc code re-generation */
+ }
+ buf->input = dev->input;
+
+ if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
+ rc = videobuf_iolock(q, &buf->vb, NULL);
+ if (0 != rc)
+ goto fail;
+ init_buffer = 1; /* force risc code re-generation */
+ }
+ dprintk(DBG_BUFF, "%s: q=%p, vb=%p, init_buffer=%d\n",
+ __func__, q, vb, init_buffer);
+
+ if (init_buffer) {
+ buf->bpl = buf->vb.width * (buf->fmt->depth) >> 3;
+ dprintk(DBG_TESTING, "%s: Generating new risc code "
+ "[%dx%dx%d](%d)\n", __func__, buf->vb.width,
+ buf->vb.height, buf->fmt->depth, buf->bpl);
+ switch (buf->vb.field) {
+ case V4L2_FIELD_TOP:
+ tw68_risc_buffer(dev->pci, &buf->risc,
+ dma->sglist,
+ 0, UNSET,
+ buf->bpl, 0,
+ buf->vb.height);
+ break;
+ case V4L2_FIELD_BOTTOM:
+ tw68_risc_buffer(dev->pci, &buf->risc,
+ dma->sglist,
+ UNSET, 0,
+ buf->bpl, 0,
+ buf->vb.height);
+ break;
+ case V4L2_FIELD_INTERLACED:
+ tw68_risc_buffer(dev->pci, &buf->risc,
+ dma->sglist,
+ 0, buf->bpl,
+ buf->bpl, buf->bpl,
+ buf->vb.height >> 1);
+ break;
+ case V4L2_FIELD_SEQ_TB:
+ tw68_risc_buffer(dev->pci, &buf->risc,
+ dma->sglist,
+ 0, buf->bpl * (buf->vb.height >> 1),
+ buf->bpl, 0,
+ buf->vb.height >> 1);
+ break;
+ case V4L2_FIELD_SEQ_BT:
+ tw68_risc_buffer(dev->pci, &buf->risc,
+ dma->sglist,
+ buf->bpl * (buf->vb.height >> 1), 0,
+ buf->bpl, 0,
+ buf->vb.height >> 1);
+ break;
+ default:
+ BUG();
+ }
+ }
+ dprintk(DBG_BUFF, "%s: [%p/%d] - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
+ __func__, buf, buf->vb.i, fh->width, fh->height,
+ fh->fmt->depth, fh->fmt->name, (unsigned long)buf->risc.dma);
+
+ buf->vb.state = VIDEOBUF_PREPARED;
+ buf->activate = buffer_activate;
+ return 0;
+
+ fail:
+ tw68_dma_free(q, buf);
+ return rc;
+}
+
+/*
+ * buffer_queue
+ *
+ * Callback whenever a buffer has been requested (by read() or QBUF)
+ */
+static void
+buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
+{
+ struct tw68_fh *fh = q->priv_data;
+ struct tw68_buf *buf = container_of(vb, struct tw68_buf, vb);
+
+ tw68_buffer_queue(fh->dev, &fh->dev->video_q, buf);
+}
+
+/*
+ * buffer_release
+ *
+ * Free a buffer previously allocated.
+ */
+static void buffer_release(struct videobuf_queue *q,
+ struct videobuf_buffer *vb)
+{
+ struct tw68_buf *buf = container_of(vb, struct tw68_buf, vb);
+
+ tw68_dma_free(q, buf);
+}
+
+static struct videobuf_queue_ops video_qops = {
+ .buf_setup = buffer_setup,
+ .buf_prepare = buffer_prepare,
+ .buf_queue = buffer_queue,
+ .buf_release = buffer_release,
+};
+
+/* ------------------------------------------------------------------ */
+
+static int tw68_g_ctrl_internal(struct tw68_dev *dev, struct tw68_fh *fh,
+ struct v4l2_control *c)
+{
+ const struct v4l2_queryctrl *ctrl;
+
+ dprintk(DBG_FLOW, "%s\n", __func__);
+ ctrl = ctrl_by_id(c->id);
+ if (NULL == ctrl)
+ return -EINVAL;
+ switch (c->id) {
+ case V4L2_CID_BRIGHTNESS:
+ c->value = (char)tw_readb(TW68_BRIGHT);
+ break;
+ case V4L2_CID_HUE:
+ c->value = (char)tw_readb(TW68_HUE);
+ break;
+ case V4L2_CID_CONTRAST:
+ c->value = tw_readb(TW68_CONTRAST);
+ break;
+ case V4L2_CID_SATURATION:
+ c->value = tw_readb(TW68_SAT_U);
+ break;
+ case V4L2_CID_COLOR_KILLER:
+ c->value = 0 != (tw_readb(TW68_MISC2) & 0xe0);
+ break;
+ case V4L2_CID_CHROMA_AGC:
+ c->value = 0 != (tw_readb(TW68_LOOP) & 0x30);
+ break;
+ case V4L2_CID_AUDIO_MUTE:
+ /*hack to suppresss tvtime complaint */
+ c->value = 0;
+ break;
+#if 0
+ case V4L2_CID_AUDIO_VOLUME:
+ c->value = dev->ctl_volume;
+ break;
+#endif
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int tw68_g_ctrl(struct file *file, void *priv, struct v4l2_control *c)
+{
+ struct tw68_fh *fh = priv;
+
+ return tw68_g_ctrl_internal(fh->dev, fh, c);
+}
+
+static int tw68_s_ctrl_value(struct tw68_dev *dev, __u32 id, int val)
+{
+ int err = 0;
+
+ dprintk(DBG_FLOW, "%s\n", __func__);
+ switch (id) {
+ case V4L2_CID_BRIGHTNESS:
+ tw_writeb(TW68_BRIGHT, val);
+ break;
+ case V4L2_CID_HUE:
+ tw_writeb(TW68_HUE, val);
+ break;
+ case V4L2_CID_CONTRAST:
+ tw_writeb(TW68_CONTRAST, val);
+ break;
+ case V4L2_CID_SATURATION:
+ tw_writeb(TW68_SAT_U, val);
+ tw_writeb(TW68_SAT_V, val);
+ break;
+ case V4L2_CID_COLOR_KILLER:
+ if (val)
+ tw_andorb(TW68_MISC2, 0xe0, 0xe0);
+ else
+ tw_andorb(TW68_MISC2, 0xe0, 0x00);
+ break;
+ case V4L2_CID_CHROMA_AGC:
+ if (val)
+ tw_andorb(TW68_LOOP, 0x30, 0x20);
+ else
+ tw_andorb(TW68_LOOP, 0x30, 0x00);
+ break;
+ case V4L2_CID_AUDIO_MUTE:
+ /* hack to suppress tvtime complaint */
+ break;
+#if 0
+ case V4L2_CID_AUDIO_VOLUME:
+ dev->ctl_volume = val;
+ tw68_tvaudio_setvolume(dev, dev->ctl_volume);
+ break;
+ case V4L2_CID_HFLIP:
+ dev->ctl_mirror = val;
+ break;
+ case V4L2_CID_PRIVATE_AUTOMUTE:
+ {
+ struct v4l2_priv_tun_config tda9887_cfg;
+
+ tda9887_cfg.tuner = TUNER_TDA9887;
+ tda9887_cfg.priv = &dev->tda9887_conf;
+
+ dev->ctl_automute = val;
+ if (dev->tda9887_conf) {
+ if (dev->ctl_automute)
+ dev->tda9887_conf |= TDA9887_AUTOMUTE;
+ else
+ dev->tda9887_conf &= ~TDA9887_AUTOMUTE;
+
+ tw_call_all(dev, tuner, s_config, &tda9887_cfg);
+ }
+ break;
+ }
+#endif
+ default:
+ err = -EINVAL;
+ }
+ return err;
+}
+
+static int tw68_s_ctrl_internal(struct tw68_dev *dev, struct tw68_fh *fh,
+ struct v4l2_control *c)
+{
+ const struct v4l2_queryctrl *ctrl;
+ int err;
+
+ dprintk(DBG_FLOW, "%s\n", __func__);
+ if (fh) {
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,34)
+ err = v4l2_prio_check(&dev->prio, &fh->prio);
+#else
+ err = v4l2_prio_check(&dev->prio, fh->prio);
+#endif
+ if (0 != err)
+ return err;
+ }
+
+ mutex_lock(&dev->lock);
+
+ ctrl = ctrl_by_id(c->id);
+ if (NULL == ctrl) {
+ err = -EINVAL;
+ goto error;
+ }
+
+ dprintk(DBG_BUFF, "%s: name=%s val=%d\n", __func__,
+ ctrl->name, c->value);
+ switch (ctrl->type) {
+ case V4L2_CTRL_TYPE_BOOLEAN:
+ case V4L2_CTRL_TYPE_MENU:
+ case V4L2_CTRL_TYPE_INTEGER:
+ if (c->value < ctrl->minimum)
+ c->value = ctrl->minimum;
+ if (c->value > ctrl->maximum)
+ c->value = ctrl->maximum;
+ break;
+ default:
+ /* nothing */;
+ };
+ err = tw68_s_ctrl_value(dev, c->id, c->value);
+
+error:
+ mutex_unlock(&dev->lock);
+ return err;
+}
+
+static int tw68_s_ctrl(struct file *file, void *f, struct v4l2_control *c)
+{
+ struct tw68_fh *fh = f;
+
+ return tw68_s_ctrl_internal(fh->dev, fh, c);
+}
+
+/* ------------------------------------------------------------------ */
+
+/*
+ * Returns a pointer to the currently used queue (e.g. video, vbi, etc.)
+ */
+static struct videobuf_queue *tw68_queue(struct tw68_fh *fh)
+{
+ struct videobuf_queue *q = NULL;
+
+ switch (fh->type) {
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+ q = &fh->cap;
+ break;
+ case V4L2_BUF_TYPE_VBI_CAPTURE:
+ q = &fh->vbi;
+ break;
+ default:
+ BUG();
+ }
+ return q;
+}
+
+static int tw68_resource(struct tw68_fh *fh)
+{
+ if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return RESOURCE_VIDEO;
+
+ if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
+ return RESOURCE_VBI;
+
+ BUG();
+ return 0;
+}
+
+static int video_open(struct file *file)
+{
+ int minor = video_devdata(file)->minor;
+ struct tw68_dev *dev;
+ struct tw68_fh *fh;
+ enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ int radio = 0;
+
+ mutex_lock(&tw68_devlist_lock);
+ list_for_each_entry(dev, &tw68_devlist, devlist) {
+ if (dev->video_dev && (dev->video_dev->minor == minor))
+ goto found;
+ if (dev->radio_dev && (dev->radio_dev->minor == minor)) {
+ radio = 1;
+ goto found;
+ }
+ if (dev->vbi_dev && (dev->vbi_dev->minor == minor)) {
+ type = V4L2_BUF_TYPE_VBI_CAPTURE;
+ goto found;
+ }
+ }
+ mutex_unlock(&tw68_devlist_lock);
+ return -ENODEV;
+
+found:
+ mutex_unlock(&tw68_devlist_lock);
+
+ dprintk(DBG_FLOW, "%s: minor=%d radio=%d type=%s\n", __func__, minor,
+ radio, v4l2_type_names[type]);
+
+ /* allocate + initialize per filehandle data */
+ fh = kzalloc(sizeof(*fh), GFP_KERNEL);
+ if (NULL == fh)
+ return -ENOMEM;
+
+ file->private_data = fh;
+ fh->dev = dev;
+ fh->radio = radio;
+ fh->type = type;
+ fh->fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
+ fh->width = 720;
+ fh->height = 576;
+ v4l2_prio_open(&dev->prio, &fh->prio);
+
+ videobuf_queue_sg_init(&fh->cap, &video_qops,
+ &dev->pci->dev, &dev->slock,
+ V4L2_BUF_TYPE_VIDEO_CAPTURE,
+ V4L2_FIELD_INTERLACED,
+ sizeof(struct tw68_buf),
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,37)
+ fh
+#else
+ fh, &dev->lock
+#endif
+ );
+ videobuf_queue_sg_init(&fh->vbi, &tw68_vbi_qops,
+ &dev->pci->dev, &dev->slock,
+ V4L2_BUF_TYPE_VBI_CAPTURE,
+ V4L2_FIELD_SEQ_TB,
+ sizeof(struct tw68_buf),
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,37)
+ fh
+#else
+ fh, &dev->lock
+#endif
+ );
+ if (fh->radio) {
+ /* switch to radio mode */
+ tw68_tvaudio_setinput(dev, &card(dev).radio);
+ tw_call_all(dev, tuner, s_radio);
+ } else {
+ /* switch to video/vbi mode */
+ tw68_tvaudio_setinput(dev, dev->input);
+ }
+ return 0;
+}
+
+static ssize_t
+video_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
+{
+ struct tw68_fh *fh = file->private_data;
+
+ switch (fh->type) {
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+ if (res_locked(fh->dev, RESOURCE_VIDEO))
+ return -EBUSY;
+ return videobuf_read_one(tw68_queue(fh),
+ data, count, ppos,
+ file->f_flags & O_NONBLOCK);
+ case V4L2_BUF_TYPE_VBI_CAPTURE:
+ if (!res_get(fh, RESOURCE_VBI))
+ return -EBUSY;
+ return videobuf_read_stream(tw68_queue(fh),
+ data, count, ppos, 1,
+ file->f_flags & O_NONBLOCK);
+ break;
+ default:
+ BUG();
+ return 0;
+ }
+}
+
+static unsigned int
+video_poll(struct file *file, struct poll_table_struct *wait)
+{
+ struct tw68_fh *fh = file->private_data;
+ struct videobuf_buffer *buf = NULL;
+
+ if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type)
+ return videobuf_poll_stream(file, &fh->vbi, wait);
+
+ if (res_check(fh, RESOURCE_VIDEO)) {
+ if (!list_empty(&fh->cap.stream))
+ buf = list_entry(fh->cap.stream.next,
+ struct videobuf_buffer, stream);
+ } else {
+ mutex_lock(&fh->cap.vb_lock);
+ if (UNSET == fh->cap.read_off) {
+ /* need to capture a new frame */
+ if (res_locked(fh->dev, RESOURCE_VIDEO))
+ goto err;
+ if (0 != fh->cap.ops->buf_prepare(&fh->cap,
+ fh->cap.read_buf, fh->cap.field))
+ goto err;
+ fh->cap.ops->buf_queue(&fh->cap, fh->cap.read_buf);
+ fh->cap.read_off = 0;
+ }
+ mutex_unlock(&fh->cap.vb_lock);
+ buf = fh->cap.read_buf;
+ }
+
+ if (!buf)
+ return POLLERR;
+
+ poll_wait(file, &buf->done, wait);
+ if (buf->state == VIDEOBUF_DONE ||
+ buf->state == VIDEOBUF_ERROR)
+ return POLLIN | POLLRDNORM;
+ return 0;
+
+err:
+ mutex_unlock(&fh->cap.vb_lock);
+ return POLLERR;
+}
+
+static int video_release(struct file *file)
+{
+ struct tw68_fh *fh = file->private_data;
+ struct tw68_dev *dev = fh->dev;
+
+ /* stop video capture */
+ if (res_check(fh, RESOURCE_VIDEO)) {
+ videobuf_streamoff(&fh->cap);
+ res_free(fh , RESOURCE_VIDEO);
+ }
+ if (fh->cap.read_buf) {
+ buffer_release(&fh->cap, fh->cap.read_buf);
+ kfree(fh->cap.read_buf);
+ }
+
+ /* stop vbi capture */
+ if (res_check(fh, RESOURCE_VBI)) {
+ videobuf_stop(&fh->vbi);
+ res_free(fh, RESOURCE_VBI);
+ }
+
+#if 0
+ tw_call_all(dev, core, s_standby, 0);
+#endif
+
+ /* free stuff */
+ videobuf_mmap_free(&fh->cap);
+ videobuf_mmap_free(&fh->vbi);
+
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,34)
+ v4l2_prio_close(&dev->prio, &fh->prio);
+#else
+ v4l2_prio_close(&dev->prio, fh->prio);
+#endif
+ file->private_data = NULL;
+ kfree(fh);
+ return 0;
+}
+
+static int video_mmap(struct file *file, struct vm_area_struct * vma)
+{
+ struct tw68_fh *fh = file->private_data;
+
+ return videobuf_mmap_mapper(tw68_queue(fh), vma);
+}
+
+/* ------------------------------------------------------------------ */
+
+#if 0
+static int tw68_try_get_set_fmt_vbi_cap(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct tw68_fh *fh = priv;
+ struct tw68_dev *dev = fh->dev;
+ struct tw68_tvnorm *norm = dev->tvnorm;
+
+ f->fmt.vbi.sampling_rate = 6750000 * 4;
+ f->fmt.vbi.samples_per_line = 2048 /* VBI_LINE_LENGTH */;
+ f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
+ f->fmt.vbi.offset = 64 * 4;
+ f->fmt.vbi.start[0] = norm->vbi_v_start_0;
+ f->fmt.vbi.count[0] = norm->vbi_v_stop_0 - norm->vbi_v_start_0 + 1;
+ f->fmt.vbi.start[1] = norm->vbi_v_start_1;
+ f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
+ f->fmt.vbi.flags = 0; /* VBI_UNSYNC VBI_INTERLACED */
+
+#if 0
+ if (V4L2_STD_PAL == norm->id) {
+ /* FIXME */
+ f->fmt.vbi.start[0] += 3;
+ f->fmt.vbi.start[1] += 3*2;
+ }
+#endif
+ return 0;
+}
+#endif
+
+/*
+ * Note that this routine returns what is stored in the fh structure, and
+ * does not interrogate any of the device registers.
+ */
+static int tw68_g_fmt_vid_cap(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct tw68_fh *fh = priv;
+ struct tw68_dev *dev = fh->dev;
+
+ dprintk(DBG_FLOW, "%s\n", __func__);
+ f->fmt.pix.width = fh->width;
+ f->fmt.pix.height = fh->height;
+ f->fmt.pix.field = fh->cap.field;
+ f->fmt.pix.pixelformat = fh->fmt->fourcc;
+ f->fmt.pix.bytesperline =
+ (f->fmt.pix.width * (fh->fmt->depth)) >> 3;
+ f->fmt.pix.sizeimage =
+ f->fmt.pix.height * f->fmt.pix.bytesperline;
+ f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
+ return 0;
+}
+
+static int tw68_try_fmt_vid_cap(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct tw68_fh *fh = priv;
+ struct tw68_dev *dev = fh->dev;
+ struct tw68_format *fmt;
+ enum v4l2_field field;
+ unsigned int maxw, maxh;
+
+ dprintk(DBG_FLOW, "%s\n", __func__);
+ fmt = format_by_fourcc(f->fmt.pix.pixelformat);
+ if (NULL == fmt)
+ return -EINVAL;
+
+ field = f->fmt.pix.field;
+ maxw = min(dev->crop_current.width*4, dev->crop_bounds.width);
+ maxh = min(dev->crop_current.height*4, dev->crop_bounds.height);
+
+ if (V4L2_FIELD_ANY == field) {
+ field = (f->fmt.pix.height > maxh/2)
+ ? V4L2_FIELD_INTERLACED
+ : V4L2_FIELD_BOTTOM;
+ }
+ switch (field) {
+ case V4L2_FIELD_TOP:
+ case V4L2_FIELD_BOTTOM:
+ break;
+ case V4L2_FIELD_INTERLACED:
+ maxh = maxh * 2;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ f->fmt.pix.field = field;
+ if (f->fmt.pix.width < 48)
+ f->fmt.pix.width = 48;
+ if (f->fmt.pix.height < 32)
+ f->fmt.pix.height = 32;
+ if (f->fmt.pix.width > maxw)
+ f->fmt.pix.width = maxw;
+ if (f->fmt.pix.height > maxh)
+ f->fmt.pix.height = maxh;
+ f->fmt.pix.width &= ~0x03;
+ f->fmt.pix.bytesperline =
+ (f->fmt.pix.width * (fmt->depth)) >> 3;
+ f->fmt.pix.sizeimage =
+ f->fmt.pix.height * f->fmt.pix.bytesperline;
+
+ return 0;
+}
+
+/*
+ * Note that tw68_s_fmt_vid_cap sets the information into the fh structure,
+ * and it will be used for all future new buffers. However, there could be
+ * some number of buffers on the "active" chain which will be filled before
+ * the change takes place.
+ */
+static int tw68_s_fmt_vid_cap(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct tw68_fh *fh = priv;
+ struct tw68_dev *dev = fh->dev;
+ int err;
+
+ dprintk(DBG_FLOW, "%s\n", __func__);
+ err = tw68_try_fmt_vid_cap(file, priv, f);
+ if (0 != err)
+ return err;
+
+ fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
+ fh->width = f->fmt.pix.width;
+ fh->height = f->fmt.pix.height;
+ fh->cap.field = f->fmt.pix.field;
+ /*
+ * The following lines are to make v4l2-test program happy.
+ * The docs should be checked to assure they make sense.
+ */
+ f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
+ f->fmt.pix.priv = 0;
+ return 0;
+}
+
+static int tw68_queryctrl(struct file *file, void *priv,
+ struct v4l2_queryctrl *c)
+{
+ const struct v4l2_queryctrl *ctrl;
+ struct tw68_fh *fh = priv;
+ struct tw68_dev *dev = fh->dev;
+
+ dprintk(DBG_FLOW, "%s\n", __func__);
+ if ((c->id < V4L2_CID_BASE || c->id >= V4L2_CID_LASTP1)
+#if 0
+ && (c->id < V4L2_CID_PRIVATE_BASE ||
+ c->id >= V4L2_CID_PRIVATE_LASTP1)
+#endif
+ )
+ return -EINVAL;
+ ctrl = ctrl_by_id(c->id);
+ if (NULL == ctrl)
+ return -EINVAL;
+ *c = *ctrl;
+ return 0;
+}
+
+static int tw68_enum_input(struct file *file, void *priv,
+ struct v4l2_input *i)
+{
+ struct tw68_fh *fh = priv;
+ struct tw68_dev *dev = fh->dev;
+ unsigned int n;
+
+ n = i->index;
+ dprintk(DBG_FLOW, "%s: index is %d\n", __func__, n);
+ if (n >= TW68_INPUT_MAX) {
+ dprintk(DBG_FLOW, "%s: INPUT_MAX reached\n", __func__);
+ return -EINVAL;
+ }
+ if (NULL == card_in(dev, n).name) {
+ dprintk(DBG_FLOW, "%s: End of list\n", __func__);
+ return -EINVAL;
+ }
+ memset(i, 0, sizeof(*i));
+ i->index = n;
+ i->type = V4L2_INPUT_TYPE_CAMERA;
+ strcpy(i->name, card_in(dev, n).name);
+ if (card_in(dev, n).tv)
+ i->type = V4L2_INPUT_TYPE_TUNER;
+ i->audioset = 1;
+ /* If the query is for the current input, get live data */
+ if (n == dev->hw_input->vmux) {
+ int v1 = tw_readb(TW68_STATUS1);
+ int v2 = tw_readb(TW68_MVSN);
+
+ if (0 != (v1 & (1 << 7)))
+ i->status |= V4L2_IN_ST_NO_SYNC;
+ if (0 != (v1 & (1 << 6)))
+ i->status |= V4L2_IN_ST_NO_H_LOCK;
+ if (0 != (v1 & (1 << 2)))
+ i->status |= V4L2_IN_ST_NO_SIGNAL;
+ if (0 != (v1 & 1 << 1))
+ i->status |= V4L2_IN_ST_NO_COLOR;
+ if (0 != (v2 & (1 << 2)))
+ i->status |= V4L2_IN_ST_MACROVISION;
+ }
+ i->std = TW68_NORMS;
+ return 0;
+}
+
+static int tw68_g_input(struct file *file, void *priv, unsigned int *i)
+{
+ struct tw68_fh *fh = priv;
+ struct tw68_dev *dev = fh->dev;
+
+ dprintk(DBG_FLOW, "%s\n", __func__);
+ *i = dev->input->vmux;
+ return 0;
+}
+
+static int tw68_s_input(struct file *file, void *priv, unsigned int i)
+{
+ struct tw68_fh *fh = priv;
+ struct tw68_dev *dev = fh->dev;
+ int err;
+
+ dprintk(DBG_FLOW, "%s\n", __func__);
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,34)
+ err = v4l2_prio_check(&dev->prio, &fh->prio);
+#else
+ err = v4l2_prio_check(&dev->prio, fh->prio);
+#endif
+ if (0 != err)
+ if (0 != err)
+ return err;
+
+ if (i < 0 || i >= TW68_INPUT_MAX)
+ return -EINVAL;
+ if (NULL == card_in(dev, i).name)
+ return -EINVAL;
+ mutex_lock(&dev->lock);
+ video_mux(dev, i);
+ mutex_unlock(&dev->lock);
+ return 0;
+}
+
+static int tw68_querycap(struct file *file, void *priv,
+ struct v4l2_capability *cap)
+{
+ struct tw68_fh *fh = priv;
+ struct tw68_dev *dev = fh->dev;
+
+ unsigned int tuner_type = dev->tuner_type;
+
+ dprintk(DBG_FLOW, "%s\n", __func__);
+ strcpy(cap->driver, "tw68");
+ strlcpy(cap->card, tw68_boards[dev->board].name,
+ sizeof(cap->card));
+ sprintf(cap->bus_info, "PCI:%s", pci_name(dev->pci));
+ cap->version = TW68_VERSION_CODE;
+ cap->capabilities =
+ V4L2_CAP_VIDEO_CAPTURE |
+ V4L2_CAP_VBI_CAPTURE |
+ V4L2_CAP_READWRITE |
+ V4L2_CAP_STREAMING |
+ V4L2_CAP_TUNER;
+
+ if ((tuner_type == TUNER_ABSENT) || (tuner_type == UNSET))
+ cap->capabilities &= ~V4L2_CAP_TUNER;
+ return 0;
+}
+
+static int tw68_s_std_internal(struct tw68_dev *dev, struct tw68_fh *fh,
+ v4l2_std_id *id)
+{
+/* unsigned long flags; */
+ unsigned int i;
+ v4l2_std_id fixup;
+ int err;
+
+ dprintk(DBG_FLOW, "%s\n", __func__);
+ if (fh) {
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,34)
+ err = v4l2_prio_check(&dev->prio, &fh->prio);
+#else
+ err = v4l2_prio_check(&dev->prio, fh->prio);
+#endif
+ if (0 != err)
+ if (0 != err)
+ return err;
+ }
+
+ /* Look for match on complete norm id (may have mult bits) */
+ for (i = 0; i < TVNORMS; i++) {
+ if (*id == tvnorms[i].id)
+ break;
+ }
+
+ /* If no exact match, look for norm which contains this one */
+ if (i == TVNORMS)
+ for (i = 0; i < TVNORMS; i++) {
+ if (*id & tvnorms[i].id)
+ break;
+ }
+ /* If still not matched, give up */
+ if (i == TVNORMS)
+ return -EINVAL;
+
+ /* TODO - verify this additional work with SECAM applies to TW */
+ if ((*id & V4L2_STD_SECAM) && (secam[0] != '-')) {
+ if (secam[0] == 'L' || secam[0] == 'l') {
+ if (secam[1] == 'C' || secam[1] == 'c')
+ fixup = V4L2_STD_SECAM_LC;
+ else
+ fixup = V4L2_STD_SECAM_L;
+ } else {
+ if (secam[0] == 'D' || secam[0] == 'd')
+ fixup = V4L2_STD_SECAM_DK;
+ else
+ fixup = V4L2_STD_SECAM;
+ }
+ for (i = 0; i < TVNORMS; i++)
+ if (fixup == tvnorms[i].id)
+ break;
+ }
+
+ *id = tvnorms[i].id;
+ mutex_lock(&dev->lock);
+ set_tvnorm(dev, &tvnorms[i]); /* do the actual setting */
+ tw68_tvaudio_do_scan(dev);
+ mutex_unlock(&dev->lock);
+ return 0;
+}
+
+static int tw68_s_std(struct file *file, void *priv, v4l2_std_id *id)
+{
+ struct tw68_fh *fh = priv;
+ struct tw68_dev *dev = fh->dev;
+
+ dprintk(DBG_FLOW, "%s\n", __func__);
+ return tw68_s_std_internal(fh->dev, fh, id);
+}
+
+static int tw68_g_std(struct file *file, void *priv, v4l2_std_id *id)
+{
+ struct tw68_fh *fh = priv;
+ struct tw68_dev *dev = fh->dev;
+
+ dprintk(DBG_FLOW, "%s\n", __func__);
+ *id = dev->tvnorm->id;
+ return 0;
+}
+
+static int tw68_g_tuner(struct file *file, void *priv,
+ struct v4l2_tuner *t)
+{
+ struct tw68_fh *fh = priv;
+ struct tw68_dev *dev = fh->dev;
+ int n;
+
+ if (unlikely(UNSET == dev->tuner_type))
+ return -EINVAL;
+ if (0 != t->index)
+ return -EINVAL;
+ memset(t, 0, sizeof(*t));
+ for (n = 0; n < TW68_INPUT_MAX; n++)
+ if (card_in(dev, n).tv)
+ break;
+ if (n == TW68_INPUT_MAX)
+ return -EINVAL;
+#if 0
+ if (NULL != card_in(dev, n).name) {
+ strcpy(t->name, "Television");
+ t->type = V4L2_TUNER_ANALOG_TV;
+ t->capability = V4L2_TUNER_CAP_NORM |
+ V4L2_TUNER_CAP_STEREO |
+ V4L2_TUNER_CAP_LANG1 |
+ V4L2_TUNER_CAP_LANG2;
+ t->rangehigh = 0xffffffffUL;
+ t->rxsubchans = tw68_tvaudio_getstereo(dev);
+ t->audmode = tw68_tvaudio_rx2mode(t->rxsubchans);
+ }
+ if (0 != (saa_readb(TW68_STATUS_VIDEO1) & 0x03))
+ t->signal = 0xffff;
+#endif
+ return 0;
+}
+
+static int tw68_s_tuner(struct file *file, void *priv,
+ struct v4l2_tuner *t)
+{
+ struct tw68_fh *fh = priv;
+ struct tw68_dev *dev = fh->dev;
+ int err;
+#if 0
+ int rx, mode
+#endif
+
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,34)
+ err = v4l2_prio_check(&dev->prio, &fh->prio);
+#else
+ err = v4l2_prio_check(&dev->prio, fh->prio);
+#endif
+ if (0 != err)
+ if (0 != err)
+ return err;
+
+#if 0
+ mode = dev->thread.mode;
+ if (UNSET == mode) {
+ rx = tw68_tvaudio_getstereo(dev);
+ mode = tw68_tvaudio_rx2mode(t->rxsubchans);
+ }
+ if (mode != t->audmode)
+ dev->thread.mode = t->audmode;
+#endif
+ return 0;
+}
+
+static int tw68_g_frequency(struct file *file, void *priv,
+ struct v4l2_frequency *f)
+{
+ struct tw68_fh *fh = priv;
+ struct tw68_dev *dev = fh->dev;
+
+ if (unlikely(dev->tuner_type))
+ return -EINVAL;
+ f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
+/* f->frequency = dev->ctl_freq; */
+
+ return 0;
+}
+
+static int tw68_s_frequency(struct file *file, void *priv,
+ struct v4l2_frequency *f)
+{
+ struct tw68_fh *fh = priv;
+ struct tw68_dev *dev = fh->dev;
+ int err;
+
+ if (unlikely(UNSET == dev->tuner_type))
+ return -EINVAL;
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,34)
+ err = v4l2_prio_check(&dev->prio, &fh->prio);
+#else
+ err = v4l2_prio_check(&dev->prio, fh->prio);
+#endif
+ if (0 != err)
+ if (0 != err)
+ return err;
+
+ if (0 != f->tuner)
+ return -EINVAL;
+ if (0 == fh->radio && V4L2_TUNER_ANALOG_TV != f->type)
+ return -EINVAL;
+ if (1 == fh->radio && V4L2_TUNER_RADIO != f->type)
+ return -EINVAL;
+ mutex_lock(&dev->lock);
+/* dev->ctl_freq = f->frequency; */
+
+ tw_call_all(dev, tuner, s_frequency, f);
+
+ tw68_tvaudio_do_scan(dev);
+ mutex_unlock(&dev->lock);
+ return 0;
+}
+
+static int tw68_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
+{
+ strcpy(a->name, "audio");
+ return 0;
+}
+
+static int tw68_s_audio(struct file *file, void *priv, struct v4l2_audio *a)
+{
+ return 0;
+}
+
+static int tw68_g_priority(struct file *file, void *f, enum v4l2_priority *p)
+{
+ struct tw68_fh *fh = f;
+ struct tw68_dev *dev = fh->dev;
+
+ dprintk(DBG_FLOW, "%s\n", __func__);
+ *p = v4l2_prio_max(&dev->prio);
+ return 0;
+}
+
+static int tw68_s_priority(struct file *file, void *f,
+ enum v4l2_priority prio)
+{
+ struct tw68_fh *fh = f;
+ struct tw68_dev *dev = fh->dev;
+
+ dprintk(DBG_FLOW, "%s\n", __func__);
+ return v4l2_prio_change(&dev->prio, &fh->prio, prio);
+}
+
+static int tw68_enum_fmt_vid_cap(struct file *file, void *priv,
+ struct v4l2_fmtdesc *f)
+{
+ struct tw68_fh *fh = priv;
+ struct tw68_dev *dev = fh->dev;
+
+ dprintk(DBG_FLOW, "%s\n", __func__);
+ if (f->index >= FORMATS)
+ return -EINVAL;
+
+ strlcpy(f->description, formats[f->index].name,
+ sizeof(f->description));
+
+ f->pixelformat = formats[f->index].fourcc;
+
+ return 0;
+}
+
+static int tw68_cropcap(struct file *file, void *priv,
+ struct v4l2_cropcap *cap)
+{
+ struct tw68_fh *fh = priv;
+ struct tw68_dev *dev = fh->dev;
+
+ dprintk(DBG_FLOW, "%s\n", __func__);
+ if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+ cap->bounds = dev->crop_bounds;
+ cap->defrect = dev->crop_defrect;
+ cap->pixelaspect.numerator = 1;
+ cap->pixelaspect.denominator = 1;
+ if (dev->tvnorm->id & V4L2_STD_525_60) {
+ cap->pixelaspect.numerator = 11;
+ cap->pixelaspect.denominator = 10;
+ }
+ if (dev->tvnorm->id & V4L2_STD_625_50) {
+ cap->pixelaspect.numerator = 54;
+ cap->pixelaspect.denominator = 59;
+ }
+ return 0;
+}
+
+static int tw68_g_crop(struct file *file, void *f, struct v4l2_crop *crop)
+{
+ struct tw68_fh *fh = f;
+ struct tw68_dev *dev = fh->dev;
+
+ dprintk(DBG_FLOW, "%s\n", __func__);
+ if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+ crop->c = dev->crop_current;
+ return 0;
+}
+
+static int tw68_s_crop(struct file *file, void *f, struct v4l2_crop *crop)
+{
+ struct tw68_fh *fh = f;
+ struct tw68_dev *dev = fh->dev;
+ struct v4l2_rect *b = &dev->crop_bounds;
+
+ dprintk(DBG_FLOW, "%s\n", __func__);
+ if (res_locked(fh->dev, RESOURCE_VIDEO))
+ return -EBUSY;
+
+ if ((crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) ||
+ (crop->c.height < 0) || (crop->c.width < 0)) {
+ dprintk(DBG_UNEXPECTED, "%s: invalid request\n", __func__);
+ return -EINVAL;
+ }
+
+ if (crop->c.top < b->top)
+ crop->c.top = b->top;
+ if (crop->c.top > b->top + b->height)
+ crop->c.top = b->top + b->height;
+ if (crop->c.height > b->top - crop->c.top + b->height)
+ crop->c.height = b->top - crop->c.top + b->height;
+
+ if (crop->c.left < b->left)
+ crop->c.left = b->left;
+ if (crop->c.left > b->left + b->width)
+ crop->c.left = b->left + b->width;
+ if (crop->c.width > b->left - crop->c.left + b->width)
+ crop->c.width = b->left - crop->c.left + b->width;
+
+ dprintk(DBG_FLOW, "%s: setting cropping rectangle: top=%d, left=%d, "
+ "width=%d, height=%d\n", __func__, crop->c.top,
+ crop->c.left, crop->c.width, crop->c.height);
+ dev->crop_current = crop->c;
+ return 0;
+}
+
+/*
+ * Wrappers for the v4l2_ioctl_ops functions
+ */
+#ifdef CONFIG_VIDEO_V4L1_COMPAT
+static int vidiocgmbuf(struct file *file, void *priv, struct video_mbuf *mbuf)
+{
+ struct tw68_fh *fh = file->private_data;
+ return videobuf_cgmbuf(tw68_queue(fh), mbuf, 8);
+}
+#endif
+
+static int tw68_reqbufs(struct file *file, void *priv,
+ struct v4l2_requestbuffers *p)
+{
+ struct tw68_fh *fh = priv;
+ return videobuf_reqbufs(tw68_queue(fh), p);
+}
+
+static int tw68_querybuf(struct file *file, void *priv,
+ struct v4l2_buffer *b)
+{
+ struct tw68_fh *fh = priv;
+ return videobuf_querybuf(tw68_queue(fh), b);
+}
+
+static int tw68_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
+{
+ struct tw68_fh *fh = priv;
+ return videobuf_qbuf(tw68_queue(fh), b);
+}
+
+static int tw68_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
+{
+ struct tw68_fh *fh = priv;
+ return videobuf_dqbuf(tw68_queue(fh), b,
+ file->f_flags & O_NONBLOCK);
+}
+
+static int tw68_streamon(struct file *file, void *priv,
+ enum v4l2_buf_type type)
+{
+ struct tw68_fh *fh = priv;
+ struct tw68_dev *dev = fh->dev;
+ int res = tw68_resource(fh);
+
+ dprintk(DBG_FLOW, "%s\n", __func__);
+ if (!res_get(fh, res))
+ return -EBUSY;
+
+ tw68_buffer_requeue(dev, &dev->video_q);
+ return videobuf_streamon(tw68_queue(fh));
+}
+
+static int tw68_streamoff(struct file *file, void *priv,
+ enum v4l2_buf_type type)
+{
+ int err;
+ struct tw68_fh *fh = priv;
+ struct tw68_dev *dev = fh->dev;
+ int res = tw68_resource(fh);
+
+ dprintk(DBG_FLOW, "%s\n", __func__);
+ err = videobuf_streamoff(tw68_queue(fh));
+ if (err < 0)
+ return err;
+ res_free(fh, res);
+ return 0;
+}
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+/*
+ * Used strictly for internal development and debugging, this routine
+ * prints out the current register contents for the tw68xx device.
+ */
+static void tw68_dump_regs(struct tw68_dev *dev)
+{
+ unsigned char line[80];
+ int i, j, k;
+ unsigned char *cptr;
+
+ printk(KERN_DEBUG "Full dump of TW68 registers:\n");
+ /* First we do the PCI regs, 8 4-byte regs per line */
+ for (i = 0; i < 0x100; i += 32) {
+ cptr = line;
+ cptr += sprintf(cptr, "%03x ", i);
+ /* j steps through the next 4 words */
+ for (j = i; j < i + 16; j += 4)
+ cptr += sprintf(cptr, "%08x ", tw_readl(j));
+ *cptr++ = ' ';
+ for (; j < i + 32; j += 4)
+ cptr += sprintf(cptr, "%08x ", tw_readl(j));
+ *cptr++ = '\n';
+ *cptr = 0;
+ printk(KERN_DEBUG "%s", line);
+ }
+ /* Next the control regs, which are single-byte, address mod 4 */
+ while (i < 0x400) {
+ cptr = line;
+ cptr += sprintf(cptr, "%03x ", i);
+ /* Print out 4 groups of 4 bytes */
+ for (j = 0; j < 4; j++) {
+ for (k = 0; k < 4; k++) {
+ cptr += sprintf(cptr, "%02x ",
+ tw_readb(i));
+ i += 4;
+ }
+ *cptr++ = ' ';
+ }
+ *cptr++ = '\n';
+ *cptr = 0;
+ printk(KERN_DEBUG "%s", line);
+ }
+}
+
+static int vidioc_log_status(struct file *file, void *priv)
+{
+ struct tw68_fh *fh = priv;
+ struct tw68_dev *dev = fh->dev;
+
+ tw68_dump_regs(dev);
+ return 0;
+}
+
+static int vidioc_g_register(struct file *file, void *priv,
+ struct v4l2_dbg_register *reg)
+{
+ struct tw68_fh *fh = priv;
+ struct tw68_dev *dev = fh->dev; /* needed for tw_readb */
+
+ dprintk(DBG_FLOW, "%s\n", __func__);
+ if (!v4l2_chip_match_host(®->match))
+ dprintk(DBG_UNEXPECTED, "%s: match failed\n", __func__);
+ return -EINVAL;
+ if (reg->size == 1)
+ reg->val = tw_readb(reg->reg);
+ else
+ reg->val = tw_readl(reg->reg);
+ return 0;
+}
+
+static int vidioc_s_register(struct file *file, void *priv,
+ struct v4l2_dbg_register *reg)
+{
+ struct tw68_fh *fh = priv;
+ struct tw68_dev *dev = fh->dev; /* needed for tw_writeb */
+
+ dprintk(DBG_FLOW, "%s: request to set reg 0x%04x to 0x%02x\n",
+ __func__, (unsigned int)reg->reg, (unsigned int)reg->val);
+ if (!v4l2_chip_match_host(®->match)) {
+ dprintk(DBG_UNEXPECTED, "%s: match failed\n", __func__);
+ return -EINVAL;
+ }
+ if (reg->size == 1)
+ tw_writeb(reg->reg, reg->val);
+ else
+ tw_writel(reg->reg & 0xffff, reg->val);
+ return 0;
+}
+#endif
+
+static const struct v4l2_file_operations video_fops = {
+ .owner = THIS_MODULE,
+ .open = video_open,
+ .release = video_release,
+ .read = video_read,
+ .poll = video_poll,
+ .mmap = video_mmap,
+ .ioctl = video_ioctl2,
+};
+
+static const struct v4l2_ioctl_ops video_ioctl_ops = {
+ .vidioc_querycap = tw68_querycap,
+ .vidioc_enum_fmt_vid_cap = tw68_enum_fmt_vid_cap,
+ .vidioc_reqbufs = tw68_reqbufs,
+ .vidioc_querybuf = tw68_querybuf,
+ .vidioc_qbuf = tw68_qbuf,
+ .vidioc_dqbuf = tw68_dqbuf,
+ .vidioc_s_std = tw68_s_std,
+ .vidioc_g_std = tw68_g_std,
+ .vidioc_enum_input = tw68_enum_input,
+ .vidioc_g_input = tw68_g_input,
+ .vidioc_s_input = tw68_s_input,
+ .vidioc_queryctrl = tw68_queryctrl,
+ .vidioc_g_ctrl = tw68_g_ctrl,
+ .vidioc_s_ctrl = tw68_s_ctrl,
+ .vidioc_streamon = tw68_streamon,
+ .vidioc_streamoff = tw68_streamoff,
+ .vidioc_g_priority = tw68_g_priority,
+ .vidioc_s_priority = tw68_s_priority,
+ .vidioc_g_fmt_vid_cap = tw68_g_fmt_vid_cap,
+ .vidioc_try_fmt_vid_cap = tw68_try_fmt_vid_cap,
+ .vidioc_s_fmt_vid_cap = tw68_s_fmt_vid_cap,
+ .vidioc_cropcap = tw68_cropcap,
+ .vidioc_g_crop = tw68_g_crop,
+ .vidioc_s_crop = tw68_s_crop,
+/*
+ * Functions not yet implemented / not yet passing tests.
+ */
+
+#if 0
+ .vidioc_g_fmt_vbi_cap = tw68_try_get_set_fmt_vbi_cap,
+ .vidioc_try_fmt_vbi_cap = tw68_try_get_set_fmt_vbi_cap,
+ .vidioc_s_fmt_vbi_cap = tw68_try_get_set_fmt_vbi_cap,
+#endif
+ .vidioc_g_audio = tw68_g_audio,
+ .vidioc_s_audio = tw68_s_audio,
+ .vidioc_g_tuner = tw68_g_tuner,
+ .vidioc_s_tuner = tw68_s_tuner,
+ .vidioc_g_frequency = tw68_g_frequency,
+ .vidioc_s_frequency = tw68_s_frequency,
+#ifdef CONFIG_VIDEO_V4L1_COMPAT
+ .vidiocgmbuf = vidiocgmbuf,
+#endif
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+ .vidioc_log_status = vidioc_log_status,
+ .vidioc_g_register = vidioc_g_register,
+ .vidioc_s_register = vidioc_s_register,
+#endif
+};
+
+/* ------------------------------------------------------------------ */
+/* exported stuff */
+struct video_device tw68_video_template = {
+ .name = "tw68_video",
+ .fops = &video_fops,
+ .ioctl_ops = &video_ioctl_ops,
+ .minor = -1,
+ .tvnorms = TW68_NORMS,
+ .current_norm = V4L2_STD_PAL,
+};
+
+struct video_device tw68_radio_template = {
+ .name = "tw68_radio",
+};
+
+int tw68_videoport_init(struct tw68_dev *dev)
+{
+ return 0;
+}
+
+void tw68_set_tvnorm_hw(struct tw68_dev *dev)
+{
+ tw_andorb(TW68_SDT, 0x07, dev->tvnorm->format);
+ return;
+}
+
+int tw68_video_init1(struct tw68_dev *dev)
+{
+ int i;
+
+ dprintk(DBG_FLOW, "%s\n", __func__);
+ /* sanitycheck insmod options */
+ if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME)
+ gbuffers = 2;
+ if (gbufsz < 0 || gbufsz > gbufsz_max)
+ gbufsz = gbufsz_max;
+ gbufsz = (gbufsz + PAGE_SIZE - 1) & PAGE_MASK;
+
+ /* put some sensible defaults into the data structures ... */
+ for (i = 0; i < CTRLS; i++)
+ tw68_s_ctrl_value(dev, video_ctrls[i].id,
+ video_ctrls[i].default_value);
+#if 0
+ if (dev->tda9887_conf && dev->ctl_automute)
+ dev->tda9887_conf |= TDA9887_AUTOMUTE;
+ dev->automute = 0;
+#endif
+ INIT_LIST_HEAD(&dev->video_q.queued);
+ INIT_LIST_HEAD(&dev->video_q.active);
+ init_timer(&dev->video_q.timeout);
+ dev->video_q.timeout.function = tw68_buffer_timeout;
+ dev->video_q.timeout.data = (unsigned long)(&dev->video_q);
+ dev->video_q.dev = dev;
+ dev->video_q.buf_compat = tw68_check_video_fmt;
+ dev->video_q.start_dma = tw68_video_start_dma;
+ tw68_risc_stopper(dev->pci, &dev->video_q.stopper);
+
+ if (tw68_boards[dev->board].video_out)
+ tw68_videoport_init(dev);
+
+ return 0;
+}
+
+int tw68_video_init2(struct tw68_dev *dev)
+{
+ dprintk(DBG_FLOW, "%s\n", __func__);
+ set_tvnorm(dev, &tvnorms[0]);
+ video_mux(dev, 0);
+/*
+ tw68_tvaudio_setmut(dev);
+ tw68_tvaudio_setvolume(dev, dev->ctl_volume);
+*/
+ return 0;
+}
+
+/*
+ * tw68_irq_video_signalchange
+ *
+ * TODO:
+ * Check for presence of video signal. If not present, mute audio.
+ * If present, log type of signal present.
+ */
+void tw68_irq_video_signalchange(struct tw68_dev *dev)
+{
+ return;
+}
+
+/*
+ * tw68_irq_video_done
+ */
+void tw68_irq_video_done(struct tw68_dev *dev, unsigned long status)
+{
+ __u32 reg;
+
+ /* reset interrupts handled by this routine */
+ tw_writel(TW68_INTSTAT, status);
+ /*
+ * Check most likely first
+ *
+ * DMAPI shows we have reached the end of the risc code
+ * for the current buffer.
+ */
+ if (status & TW68_DMAPI) {
+ struct tw68_dmaqueue *q = &dev->video_q;
+ dprintk(DBG_FLOW | DBG_TESTING, "DMAPI interrupt\n");
+ spin_lock(&dev->slock);
+ /*
+ * tw68_wakeup will take care of the buffer handling,
+ * plus any non-video requirements.
+ */
+ tw68_wakeup(q, &dev->video_fieldcount);
+ spin_unlock(&dev->slock);
+ /* Check whether we have gotten into 'stopper' code */
+ reg = tw_readl(TW68_DMAP_PP);
+ if ((reg >= q->stopper.dma) &&
+ (reg < q->stopper.dma + q->stopper.size)) {
+ /* Yes - log the information */
+ dprintk(DBG_FLOW | DBG_TESTING,
+ "%s: stopper risc code entered\n", __func__);
+ }
+ status &= ~(TW68_DMAPI);
+ if (0 == status)
+ return;
+ }
+ if (status & (TW68_VLOCK | TW68_HLOCK)) { /* lost sync */
+ dprintk(DBG_UNUSUAL, "Lost sync\n");
+ }
+ if (status & TW68_PABORT) { /* TODO - what should we do? */
+ dprintk(DBG_UNEXPECTED, "PABORT interrupt\n");
+ }
+ if (status & TW68_DMAPERR) {
+ dprintk(DBG_UNEXPECTED, "DMAPERR interrupt\n");
+#if 0
+ /* Stop risc & fifo */
+ tw_clearl(TW68_DMAC, TW68_DMAP_EN | TW68_FIFO_EN);
+ tw_clearl(TW68_INTMASK, dev->board_virqmask);
+ dev->pci_irqmask &= ~dev->board_virqmask;
+#endif
+ }
+ /*
+ * On TW6800, FDMIS is apparently generated if video input is switched
+ * during operation. Therefore, it is not enabled for that chip.
+ */
+ if (status & TW68_FDMIS) { /* logic error somewhere */
+ dprintk(DBG_UNEXPECTED, "FDMIS interrupt\n");
+ /* Stop risc & fifo */
+// tw_clearl(TW68_DMAC, TW68_DMAP_EN | TW68_FIFO_EN);
+// tw_clearl(TW68_INTMASK, dev->board_virqmask);
+// dev->pci_irqmask &= ~dev->board_virqmask;
+ }
+ if (status & TW68_FFOF) { /* probably a logic error */
+ reg = tw_readl(TW68_DMAC) & TW68_FIFO_EN;
+ tw_clearl(TW68_DMAC, TW68_FIFO_EN);
+ dprintk(DBG_UNUSUAL, "FFOF interrupt\n");
+ tw_setl(TW68_DMAC, reg);
+ }
+ if (status & TW68_FFERR)
+ dprintk(DBG_UNEXPECTED, "FFERR interrupt\n");
+ return;
+}
--- /dev/null
+/*
+ * tw68 driver common header file
+ *
+ * Much of this code is derived from the cx88 and sa7134 drivers, which
+ * were in turn derived from the bt87x driver. The original work was by
+ * Gerd Knorr; more recently the code was enhanced by Mauro Carvalho Chehab,
+ * Hans Verkuil, Andy Walls and many others. Their work is gratefully
+ * acknowledged. Full credit goes to them - any problems within this code
+ * are mine.
+ *
+ * Copyright (C) 2009 William M. Brack <wbrack@mmm.com.hk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ * 02111-1307 USA
+ */
+
+#include <linux/version.h>
+#define TW68_VERSION_CODE KERNEL_VERSION(0, 0, 8)
+
+#include <linux/pci.h>
+#include <linux/i2c.h>
+#include <linux/i2c-algo-bit.h>
+#include <linux/videodev2.h>
+#include <linux/kdev_t.h>
+#include <linux/input.h>
+#include <linux/notifier.h>
+#include <linux/delay.h>
+#include <linux/mutex.h>
+
+#include <asm/io.h>
+
+#include <media/v4l2-common.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-device.h>
+
+#include <media/tuner.h>
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,38)
+# include <media/ir-common.h>
+#endif
+#include <media/ir-kbd-i2c.h>
+#include <media/videobuf-dma-sg.h>
+
+#include "btcx-risc.h"
+#include "tw68-reg.h"
+
+#define UNSET (-1U)
+
+/*
+ * dprintk statement within the code use a 'level' argument. For
+ * our purposes, we use the following levels:
+ */
+#define DBG_UNEXPECTED (1 << 0)
+#define DBG_UNUSUAL (1 << 1)
+#define DBG_TESTING (1 << 2)
+#define DBG_BUFF (1 << 3)
+#define DBG_FLOW (1 << 15)
+
+/* system vendor and device ID's */
+#define PCI_VENDOR_ID_TECHWELL 0x1797
+#define PCI_DEVICE_ID_6800 0x6800
+#define PCI_DEVICE_ID_6801 0x6801
+#define PCI_DEVICE_ID_AUDIO2 0x6802
+#define PCI_DEVICE_ID_TS3 0x6803
+#define PCI_DEVICE_ID_6804 0x6804
+#define PCI_DEVICE_ID_AUDIO5 0x6805
+#define PCI_DEVICE_ID_TS6 0x6806
+
+/* tw6816 based cards */
+#define PCI_DEVICE_ID_6816_1 0x6810
+#define PCI_DEVICE_ID_6816_2 0x6811
+#define PCI_DEVICE_ID_6816_3 0x6812
+#define PCI_DEVICE_ID_6816_4 0x6813
+
+/* subsystem vendor ID's */
+#define TW68_PCI_ID_TECHWELL 0x1797
+
+#define TW68_NORMS (\
+ V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM | \
+ V4L2_STD_PAL_BG | V4L2_STD_PAL_DK | V4L2_STD_PAL_I | \
+ V4L2_STD_PAL_M | V4L2_STD_PAL_Nc | V4L2_STD_PAL_60 | \
+ V4L2_STD_525_60 | V4L2_STD_625_50 | \
+ V4L2_STD_SECAM_L| V4L2_STD_SECAM_LC | V4L2_STD_SECAM_DK)
+
+#define TW68_VID_INTS (TW68_FFERR | TW68_PABORT | TW68_DMAPERR | \
+ TW68_FFOF | TW68_DMAPI)
+/* TW6800 chips have trouble with these, so we don't set them for that chip */
+#define TW68_VID_INTSX (TW68_FDMIS | TW68_HLOCK | TW68_VLOCK)
+
+#define TW68_I2C_INTS (TW68_SBERR | TW68_SBDONE | TW68_SBERR2 | \
+ TW68_SBDONE2)
+
+typedef enum {
+ TW6800,
+ TW6801,
+ TW6804,
+ TWXXXX,
+} TW68_DECODER_TYPE;
+/* ----------------------------------------------------------- */
+/* static data */
+
+struct tw68_tvnorm {
+ char *name;
+ v4l2_std_id id;
+
+ /* video decoder */
+ u32 sync_control;
+ u32 luma_control;
+ u32 chroma_ctrl1;
+ u32 chroma_gain;
+ u32 chroma_ctrl2;
+ u32 vgate_misc;
+
+ /* video scaler */
+ u32 h_delay;
+ u32 h_delay0; /* for TW6800 */
+ u32 h_start;
+ u32 h_stop;
+ u32 v_delay;
+ u32 video_v_start;
+ u32 video_v_stop;
+ u32 vbi_v_start_0;
+ u32 vbi_v_stop_0;
+ u32 vbi_v_start_1;
+
+ /* Techwell specific */
+ u32 format;
+};
+
+struct tw68_format {
+ char *name;
+ u32 fourcc;
+ u32 depth;
+ u32 twformat;
+};
+
+/* ----------------------------------------------------------- */
+/* card configuration */
+
+#define TW68_BOARD_NOAUTO UNSET
+#define TW68_BOARD_UNKNOWN 0
+#define TW68_BOARD_GENERIC_6802 1
+
+#define TW68_MAXBOARDS 16
+#define TW68_INPUT_MAX 8
+
+/* ----------------------------------------------------------- */
+/* enums */
+
+enum tw68_mpeg_type {
+ TW68_MPEG_UNUSED,
+ TW68_MPEG_EMPRESS,
+ TW68_MPEG_DVB,
+};
+
+enum tw68_audio_in {
+ TV = 1,
+ LINE1 = 2,
+ LINE2 = 3,
+ LINE2_LEFT,
+};
+
+enum tw68_video_out {
+ CCIR656 = 1,
+};
+
+/* Structs for card definition */
+struct tw68_input {
+ char *name; /* text description */
+ unsigned int vmux; /* mux value */
+ enum tw68_audio_in mux;
+ unsigned int gpio;
+ unsigned int tv:1;
+};
+
+struct tw68_board {
+ char *name;
+ unsigned int audio_clock;
+
+ /* input switching */
+ unsigned int gpiomask;
+ struct tw68_input inputs[TW68_INPUT_MAX];
+ struct tw68_input radio;
+ struct tw68_input mute;
+
+ /* i2c chip info */
+ unsigned int tuner_type;
+ unsigned int radio_type;
+ unsigned char tuner_addr;
+ unsigned char radio_addr;
+
+ unsigned int tda9887_conf;
+ unsigned int tuner_config;
+
+ enum tw68_video_out video_out;
+ enum tw68_mpeg_type mpeg;
+ unsigned int vid_port_opts;
+};
+
+#define card_has_radio(dev) (NULL != tw68_boards[dev->board].radio.name)
+#define card_has_mpeg(dev) (TW68_MPEG_UNUSED != \
+ tw68_boards[dev->board].mpeg)
+#define card_in(dev, n) (tw68_boards[dev->board].inputs[n])
+#define card(dev) (tw68_boards[dev->board])
+
+/* ----------------------------------------------------------- */
+/* device / file handle status */
+
+#define RESOURCE_VIDEO 1
+#define RESOURCE_VBI 2
+
+#define INTERLACE_AUTO 0
+#define INTERLACE_ON 1
+#define INTERLACE_OFF 2
+
+#define BUFFER_TIMEOUT msecs_to_jiffies(500) /* 0.5 seconds */
+
+struct tw68_dev; /* forward delclaration */
+
+/* tvaudio thread status */
+struct tw68_thread {
+ struct task_struct *thread;
+ unsigned int scan1;
+ unsigned int scan2;
+ unsigned int mode;
+ unsigned int stopped;
+};
+
+/* buffer for one video/vbi/ts frame */
+struct tw68_buf {
+ /* common v4l buffer stuff -- must be first */
+ struct videobuf_buffer vb;
+
+ /* tw68 specific */
+ struct tw68_format *fmt;
+ struct tw68_input *input;
+ unsigned int top_seen;
+ int (*activate)(struct tw68_dev *dev,
+ struct tw68_buf *buf,
+ struct tw68_buf *next);
+ struct btcx_riscmem risc;
+ unsigned int bpl;
+};
+
+struct tw68_dmaqueue {
+ struct tw68_dev *dev;
+ struct list_head active;
+ struct list_head queued;
+ struct timer_list timeout;
+ struct btcx_riscmem stopper;
+ int (*buf_compat)(struct tw68_buf *prev,
+ struct tw68_buf *buf);
+ int (*start_dma)(struct tw68_dev *dev,
+ struct tw68_dmaqueue *q,
+ struct tw68_buf *buf);
+};
+
+/* video filehandle status */
+struct tw68_fh {
+ struct tw68_dev *dev;
+ unsigned int radio;
+ enum v4l2_buf_type type;
+ unsigned int resources;
+ enum v4l2_priority prio;
+
+ /* video capture */
+ struct tw68_format *fmt;
+ unsigned int width, height;
+ struct videobuf_queue cap; /* also used for overlay */
+
+ /* vbi capture */
+ struct videobuf_queue vbi;
+};
+
+/* dmasound dsp status */
+struct tw68_dmasound {
+ struct mutex lock;
+ int minor_mixer;
+ int minor_dsp;
+ unsigned int users_dsp;
+
+ /* mixer */
+ enum tw68_audio_in input;
+ unsigned int count;
+ unsigned int line1;
+ unsigned int line2;
+
+ /* dsp */
+ unsigned int afmt;
+ unsigned int rate;
+ unsigned int channels;
+ unsigned int recording_on;
+ unsigned int dma_running;
+ unsigned int blocks;
+ unsigned int blksize;
+ unsigned int bufsize;
+ struct videobuf_dmabuf dma;
+ unsigned int dma_blk;
+ unsigned int read_offset;
+ unsigned int read_count;
+ void *priv_data;
+ struct snd_pcm_substream *substream;
+};
+
+struct tw68_fmt {
+ char *name;
+ u32 fourcc; /* v4l2 format id */
+ int depth;
+ int flags;
+ u32 twformat;
+};
+
+/* ts/mpeg status */
+struct tw68_ts {
+ /* TS capture */
+ int nr_packets;
+ int nr_bufs;
+};
+
+/* ts/mpeg ops */
+struct tw68_mpeg_ops {
+ enum tw68_mpeg_type type;
+ struct list_head next;
+ int (*init)(struct tw68_dev *dev);
+ int (*fini)(struct tw68_dev *dev);
+ void (*signal_change)(struct tw68_dev *dev);
+};
+
+enum tw68_ts_status {
+ TW68_TS_STOPPED,
+ TW68_TS_BUFF_DONE,
+ TW68_TS_STARTED,
+};
+
+/* global device status */
+struct tw68_dev {
+ struct list_head devlist;
+ struct mutex lock;
+ spinlock_t slock;
+ struct v4l2_prio_state prio;
+ struct v4l2_device v4l2_dev;
+ /* workstruct for loading modules */
+ struct work_struct request_module_wk;
+
+ /* insmod option/autodetected */
+ int autodetected;
+
+ /* various device info */
+ TW68_DECODER_TYPE vdecoder;
+ unsigned int resources;
+ struct video_device *video_dev;
+ struct video_device *radio_dev;
+ struct video_device *vbi_dev;
+ struct tw68_dmasound dmasound;
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3,0,0)
+ /* infrared remote */
+ int has_remote;
+ struct card_ir *remote;
+#endif
+
+ /* pci i/o */
+ char name[32];
+ int nr;
+ struct pci_dev *pci;
+ unsigned char pci_rev, pci_lat;
+ u32 __iomem *lmmio;
+ u8 __iomem *bmmio;
+ u32 pci_irqmask;
+ /* The irq mask to be used will depend upon the chip type */
+ u32 board_virqmask;
+
+ /* config info */
+ unsigned int board;
+ unsigned int tuner_type;
+ unsigned int radio_type;
+ unsigned char tuner_addr;
+ unsigned char radio_addr;
+
+ unsigned int tda9887_conf;
+ unsigned int gpio_value;
+
+ /* i2c i/o */
+ struct i2c_algo_bit_data i2c_algo;
+ struct i2c_adapter i2c_adap;
+ struct i2c_client i2c_client;
+ u32 i2c_state;
+ u32 i2c_done;
+ wait_queue_head_t i2c_queue;
+ int i2c_rc;
+ unsigned char eedata[256];
+
+ /* video+ts+vbi capture */
+ struct tw68_dmaqueue video_q;
+ struct tw68_dmaqueue vbi_q;
+ unsigned int video_fieldcount;
+ unsigned int vbi_fieldcount;
+
+ /* various v4l controls */
+ struct tw68_tvnorm *tvnorm; /* video */
+ struct tw68_tvaudio *tvaudio;
+#if 0
+ unsigned int ctl_input;
+ int ctl_bright;
+ int ctl_contrast;
+ int ctl_hue;
+ int ctl_saturation;
+ int ctl_freq;
+ int ctl_mute; /* audio */
+ int ctl_volume;
+ int ctl_invert; /* private */
+ int ctl_mirror;
+ int ctl_y_odd;
+ int ctl_y_even;
+ int ctl_automute;
+#endif
+
+ /* crop */
+ struct v4l2_rect crop_bounds;
+ struct v4l2_rect crop_defrect;
+ struct v4l2_rect crop_current;
+
+ /* other global state info */
+ unsigned int automute;
+ struct tw68_thread thread;
+ /* input is latest requested by app, hw_input is current hw setting */
+ struct tw68_input *input;
+ struct tw68_input *hw_input;
+ unsigned int hw_mute;
+ int last_carrier;
+ int nosignal;
+ unsigned int insuspend;
+
+ /* TW68_MPEG_* */
+ struct tw68_ts ts;
+ struct tw68_dmaqueue ts_q;
+ enum tw68_ts_status ts_state;
+ unsigned int buff_cnt;
+ struct tw68_mpeg_ops *mops;
+
+ void (*gate_ctrl)(struct tw68_dev *dev, int open);
+};
+
+/* ----------------------------------------------------------- */
+
+#define tw_readl(reg) readl(dev->lmmio + ((reg) >> 2))
+#define tw_readb(reg) readb(dev->bmmio + (reg))
+#define tw_writel(reg, value) writel((value), dev->lmmio + ((reg) >> 2))
+#define tw_writeb(reg, value) writeb((value), dev->bmmio + (reg))
+
+#define tw_andorl(reg, mask, value) \
+ writel((readl(dev->lmmio+((reg)>>2)) & ~(mask)) |\
+ ((value) & (mask)), dev->lmmio+((reg)>>2))
+#define tw_andorb(reg, mask, value) \
+ writeb((readb(dev->bmmio + (reg)) & ~(mask)) |\
+ ((value) & (mask)), dev->bmmio+(reg))
+#define tw_setl(reg, bit) tw_andorl((reg), (bit), (bit))
+#define tw_setb(reg, bit) tw_andorb((reg), (bit), (bit))
+#define tw_clearl(reg, bit) \
+ writel((readl(dev->lmmio + ((reg) >> 2)) & ~(bit)), \
+ dev->lmmio + ((reg) >> 2))
+#define tw_clearb(reg, bit) \
+ writeb((readb(dev->bmmio+(reg)) & ~(bit)), \
+ dev->bmmio + (reg))
+#define tw_call_all(dev, o, f, args...) do { \
+ if (dev->gate_ctrl) \
+ dev->gate_ctrl(dev, 1); \
+ v4l2_device_call_all(&(dev)->v4l2_dev, 0, o, f , ##args); \
+ if (dev->gate_ctrl) \
+ dev->gate_ctrl(dev, 0); \
+} while (0)
+
+#define tw_wait(us) { udelay(us); }
+
+static inline struct tw68_dev *to_tw68_dev(struct v4l2_device *v4l2_dev)
+{
+ return container_of(v4l2_dev, struct tw68_dev, v4l2_dev);
+}
+
+/* ----------------------------------------------------------- */
+/* tw68-core.c */
+
+extern struct list_head tw68_devlist;
+extern struct mutex tw68_devlist_lock;
+extern unsigned int irq_debug;
+
+int tw68_buffer_count(unsigned int size, unsigned int count);
+void tw68_buffer_queue(struct tw68_dev *dev, struct tw68_dmaqueue *q,
+ struct tw68_buf *buf);
+void tw68_buffer_timeout(unsigned long data);
+int tw68_set_dmabits(struct tw68_dev *dev);
+void tw68_dma_free(struct videobuf_queue *q, struct tw68_buf *buf);
+void tw68_wakeup(struct tw68_dmaqueue *q, unsigned int *field_count);
+int tw68_buffer_requeue(struct tw68_dev *dev, struct tw68_dmaqueue *q);
+
+/* ----------------------------------------------------------- */
+/* tw68-cards.c */
+
+extern struct tw68_board tw68_boards[];
+extern const unsigned int tw68_bcount;
+extern struct pci_device_id __devinitdata tw68_pci_tbl[];
+
+int tw68_board_init1(struct tw68_dev *dev);
+int tw68_board_init2(struct tw68_dev *dev);
+int tw68_tuner_callback(void *priv, int component, int command, int arg);
+
+/* ----------------------------------------------------------- */
+/* tw68-i2c.c */
+
+int tw68_i2c_register(struct tw68_dev *dev);
+int tw68_i2c_unregister(struct tw68_dev *dev);
+void tw68_irq_i2c(struct tw68_dev *dev, int status);
+
+/* ----------------------------------------------------------- */
+/* tw68-video.c */
+
+extern unsigned int video_debug;
+extern struct video_device tw68_video_template;
+extern struct video_device tw68_radio_template;
+
+int tw68_videoport_init(struct tw68_dev *dev);
+void tw68_set_tvnorm_hw(struct tw68_dev *dev);
+
+int tw68_video_init1(struct tw68_dev *dev);
+int tw68_video_init2(struct tw68_dev *dev);
+void tw68_irq_video_signalchange(struct tw68_dev *dev);
+void tw68_irq_video_done(struct tw68_dev *dev, unsigned long status);
+
+/* ----------------------------------------------------------- */
+/* tw68-ts.c */
+
+int tw68_ts_init1(struct tw68_dev *dev);
+int tw68_ts_fini(struct tw68_dev *dev);
+void tw68_irq_ts_done(struct tw68_dev *dev, unsigned long status);
+
+int tw68_ts_register(struct tw68_mpeg_ops *ops);
+void tw68_ts_unregister(struct tw68_mpeg_ops *ops);
+
+int tw68_ts_init_hw(struct tw68_dev *dev);
+
+/* ----------------------------------------------------------- */
+/* tw68-vbi.c */
+
+extern struct videobuf_queue_ops tw68_vbi_qops;
+extern struct video_device tw68_vbi_template;
+
+int tw68_vbi_init1(struct tw68_dev *dev);
+int tw68_vbi_fini(struct tw68_dev *dev);
+void tw68_irq_vbi_done(struct tw68_dev *dev, unsigned long status);
+
+/* ----------------------------------------------------------- */
+/* tw68-tvaudio.c */
+
+int tw68_tvaudio_rx2mode(u32 rx);
+
+void tw68_tvaudio_setmute(struct tw68_dev *dev);
+void tw68_tvaudio_setinput(struct tw68_dev *dev,
+ struct tw68_input *in);
+void tw68_tvaudio_setvolume(struct tw68_dev *dev, int level);
+int tw68_tvaudio_getstereo(struct tw68_dev *dev);
+void tw68_tvaudio_init(struct tw68_dev *dev);
+int tw68_tvaudio_init2(struct tw68_dev *dev);
+int tw68_tvaudio_fini(struct tw68_dev *dev);
+int tw68_tvaudio_do_scan(struct tw68_dev *dev);
+int tw_dsp_writel(struct tw68_dev *dev, int reg, u32 value);
+void tw68_enable_i2s(struct tw68_dev *dev);
+
+/* ----------------------------------------------------------- */
+/* tw68-risc.c */
+
+int tw68_risc_buffer(struct pci_dev *pci, struct btcx_riscmem *risc,
+ struct scatterlist *sglist, unsigned int top_offset,
+ unsigned int bottom_offset, unsigned int bpl,
+ unsigned int padding, unsigned int lines);
+int tw68_risc_stopper(struct pci_dev *pci, struct btcx_riscmem *risc);
+int tw68_risc_overlay(struct tw68_fh *fh, struct btcx_riscmem *risc,
+ int field_type);
projects / firefly-linux-kernel-4.4.55.git / commitdiff