+++ /dev/null
-/* tuner-xc2028
- *
- * Copyright (c) 2007-2008 Mauro Carvalho Chehab (mchehab@infradead.org)
- *
- * Copyright (c) 2007 Michel Ludwig (michel.ludwig@gmail.com)
- * - frontend interface
- *
- * This code is placed under the terms of the GNU General Public License v2
- */
-
-#include <linux/i2c.h>
-#include <asm/div64.h>
-#include <linux/firmware.h>
-#include <linux/videodev2.h>
-#include <linux/delay.h>
-#include <media/tuner.h>
-#include <linux/mutex.h>
-#include <linux/slab.h>
-#include <asm/unaligned.h>
-#include "tuner-i2c.h"
-#include "tuner-xc2028.h"
-#include "tuner-xc2028-types.h"
-
-#include <linux/dvb/frontend.h>
-#include "dvb_frontend.h"
-
-/* Registers (Write-only) */
-#define XREG_INIT 0x00
-#define XREG_RF_FREQ 0x02
-#define XREG_POWER_DOWN 0x08
-
-/* Registers (Read-only) */
-#define XREG_FREQ_ERROR 0x01
-#define XREG_LOCK 0x02
-#define XREG_VERSION 0x04
-#define XREG_PRODUCT_ID 0x08
-#define XREG_HSYNC_FREQ 0x10
-#define XREG_FRAME_LINES 0x20
-#define XREG_SNR 0x40
-
-#define XREG_ADC_ENV 0x0100
-
-static int debug;
-module_param(debug, int, 0644);
-MODULE_PARM_DESC(debug, "enable verbose debug messages");
-
-static int no_poweroff;
-module_param(no_poweroff, int, 0644);
-MODULE_PARM_DESC(no_poweroff, "0 (default) powers device off when not used.\n"
- "1 keep device energized and with tuner ready all the times.\n"
- " Faster, but consumes more power and keeps the device hotter\n");
-
-static char audio_std[8];
-module_param_string(audio_std, audio_std, sizeof(audio_std), 0);
-MODULE_PARM_DESC(audio_std,
- "Audio standard. XC3028 audio decoder explicitly "
- "needs to know what audio\n"
- "standard is needed for some video standards with audio A2 or NICAM.\n"
- "The valid values are:\n"
- "A2\n"
- "A2/A\n"
- "A2/B\n"
- "NICAM\n"
- "NICAM/A\n"
- "NICAM/B\n");
-
-static char firmware_name[30];
-module_param_string(firmware_name, firmware_name, sizeof(firmware_name), 0);
-MODULE_PARM_DESC(firmware_name, "Firmware file name. Allows overriding the "
- "default firmware name\n");
-
-static LIST_HEAD(hybrid_tuner_instance_list);
-static DEFINE_MUTEX(xc2028_list_mutex);
-
-/* struct for storing firmware table */
-struct firmware_description {
- unsigned int type;
- v4l2_std_id id;
- __u16 int_freq;
- unsigned char *ptr;
- unsigned int size;
-};
-
-struct firmware_properties {
- unsigned int type;
- v4l2_std_id id;
- v4l2_std_id std_req;
- __u16 int_freq;
- unsigned int scode_table;
- int scode_nr;
-};
-
-enum xc2028_state {
- XC2028_NO_FIRMWARE = 0,
- XC2028_WAITING_FIRMWARE,
- XC2028_ACTIVE,
- XC2028_SLEEP,
- XC2028_NODEV,
-};
-
-struct xc2028_data {
- struct list_head hybrid_tuner_instance_list;
- struct tuner_i2c_props i2c_props;
- __u32 frequency;
-
- enum xc2028_state state;
- const char *fname;
-
- struct firmware_description *firm;
- int firm_size;
- __u16 firm_version;
-
- __u16 hwmodel;
- __u16 hwvers;
-
- struct xc2028_ctrl ctrl;
-
- struct firmware_properties cur_fw;
-
- struct mutex lock;
-};
-
-#define i2c_send(priv, buf, size) ({ \
- int _rc; \
- _rc = tuner_i2c_xfer_send(&priv->i2c_props, buf, size); \
- if (size != _rc) \
- tuner_info("i2c output error: rc = %d (should be %d)\n",\
- _rc, (int)size); \
- if (priv->ctrl.msleep) \
- msleep(priv->ctrl.msleep); \
- _rc; \
-})
-
-#define i2c_rcv(priv, buf, size) ({ \
- int _rc; \
- _rc = tuner_i2c_xfer_recv(&priv->i2c_props, buf, size); \
- if (size != _rc) \
- tuner_err("i2c input error: rc = %d (should be %d)\n", \
- _rc, (int)size); \
- _rc; \
-})
-
-#define i2c_send_recv(priv, obuf, osize, ibuf, isize) ({ \
- int _rc; \
- _rc = tuner_i2c_xfer_send_recv(&priv->i2c_props, obuf, osize, \
- ibuf, isize); \
- if (isize != _rc) \
- tuner_err("i2c input error: rc = %d (should be %d)\n", \
- _rc, (int)isize); \
- if (priv->ctrl.msleep) \
- msleep(priv->ctrl.msleep); \
- _rc; \
-})
-
-#define send_seq(priv, data...) ({ \
- static u8 _val[] = data; \
- int _rc; \
- if (sizeof(_val) != \
- (_rc = tuner_i2c_xfer_send(&priv->i2c_props, \
- _val, sizeof(_val)))) { \
- tuner_err("Error on line %d: %d\n", __LINE__, _rc); \
- } else if (priv->ctrl.msleep) \
- msleep(priv->ctrl.msleep); \
- _rc; \
-})
-
-static int xc2028_get_reg(struct xc2028_data *priv, u16 reg, u16 *val)
-{
- unsigned char buf[2];
- unsigned char ibuf[2];
-
- tuner_dbg("%s %04x called\n", __func__, reg);
-
- buf[0] = reg >> 8;
- buf[1] = (unsigned char) reg;
-
- if (i2c_send_recv(priv, buf, 2, ibuf, 2) != 2)
- return -EIO;
-
- *val = (ibuf[1]) | (ibuf[0] << 8);
- return 0;
-}
-
-#define dump_firm_type(t) dump_firm_type_and_int_freq(t, 0)
-static void dump_firm_type_and_int_freq(unsigned int type, u16 int_freq)
-{
- if (type & BASE)
- printk("BASE ");
- if (type & INIT1)
- printk("INIT1 ");
- if (type & F8MHZ)
- printk("F8MHZ ");
- if (type & MTS)
- printk("MTS ");
- if (type & D2620)
- printk("D2620 ");
- if (type & D2633)
- printk("D2633 ");
- if (type & DTV6)
- printk("DTV6 ");
- if (type & QAM)
- printk("QAM ");
- if (type & DTV7)
- printk("DTV7 ");
- if (type & DTV78)
- printk("DTV78 ");
- if (type & DTV8)
- printk("DTV8 ");
- if (type & FM)
- printk("FM ");
- if (type & INPUT1)
- printk("INPUT1 ");
- if (type & LCD)
- printk("LCD ");
- if (type & NOGD)
- printk("NOGD ");
- if (type & MONO)
- printk("MONO ");
- if (type & ATSC)
- printk("ATSC ");
- if (type & IF)
- printk("IF ");
- if (type & LG60)
- printk("LG60 ");
- if (type & ATI638)
- printk("ATI638 ");
- if (type & OREN538)
- printk("OREN538 ");
- if (type & OREN36)
- printk("OREN36 ");
- if (type & TOYOTA388)
- printk("TOYOTA388 ");
- if (type & TOYOTA794)
- printk("TOYOTA794 ");
- if (type & DIBCOM52)
- printk("DIBCOM52 ");
- if (type & ZARLINK456)
- printk("ZARLINK456 ");
- if (type & CHINA)
- printk("CHINA ");
- if (type & F6MHZ)
- printk("F6MHZ ");
- if (type & INPUT2)
- printk("INPUT2 ");
- if (type & SCODE)
- printk("SCODE ");
- if (type & HAS_IF)
- printk("HAS_IF_%d ", int_freq);
-}
-
-static v4l2_std_id parse_audio_std_option(void)
-{
- if (strcasecmp(audio_std, "A2") == 0)
- return V4L2_STD_A2;
- if (strcasecmp(audio_std, "A2/A") == 0)
- return V4L2_STD_A2_A;
- if (strcasecmp(audio_std, "A2/B") == 0)
- return V4L2_STD_A2_B;
- if (strcasecmp(audio_std, "NICAM") == 0)
- return V4L2_STD_NICAM;
- if (strcasecmp(audio_std, "NICAM/A") == 0)
- return V4L2_STD_NICAM_A;
- if (strcasecmp(audio_std, "NICAM/B") == 0)
- return V4L2_STD_NICAM_B;
-
- return 0;
-}
-
-static int check_device_status(struct xc2028_data *priv)
-{
- switch (priv->state) {
- case XC2028_NO_FIRMWARE:
- case XC2028_WAITING_FIRMWARE:
- return -EAGAIN;
- case XC2028_ACTIVE:
- case XC2028_SLEEP:
- return 0;
- case XC2028_NODEV:
- return -ENODEV;
- }
- return 0;
-}
-
-static void free_firmware(struct xc2028_data *priv)
-{
- int i;
- tuner_dbg("%s called\n", __func__);
-
- if (!priv->firm)
- return;
-
- for (i = 0; i < priv->firm_size; i++)
- kfree(priv->firm[i].ptr);
-
- kfree(priv->firm);
-
- priv->firm = NULL;
- priv->firm_size = 0;
- priv->state = XC2028_NO_FIRMWARE;
-
- memset(&priv->cur_fw, 0, sizeof(priv->cur_fw));
-}
-
-static int load_all_firmwares(struct dvb_frontend *fe,
- const struct firmware *fw)
-{
- struct xc2028_data *priv = fe->tuner_priv;
- const unsigned char *p, *endp;
- int rc = 0;
- int n, n_array;
- char name[33];
-
- tuner_dbg("%s called\n", __func__);
-
- p = fw->data;
- endp = p + fw->size;
-
- if (fw->size < sizeof(name) - 1 + 2 + 2) {
- tuner_err("Error: firmware file %s has invalid size!\n",
- priv->fname);
- goto corrupt;
- }
-
- memcpy(name, p, sizeof(name) - 1);
- name[sizeof(name) - 1] = 0;
- p += sizeof(name) - 1;
-
- priv->firm_version = get_unaligned_le16(p);
- p += 2;
-
- n_array = get_unaligned_le16(p);
- p += 2;
-
- tuner_info("Loading %d firmware images from %s, type: %s, ver %d.%d\n",
- n_array, priv->fname, name,
- priv->firm_version >> 8, priv->firm_version & 0xff);
-
- priv->firm = kcalloc(n_array, sizeof(*priv->firm), GFP_KERNEL);
- if (priv->firm == NULL) {
- tuner_err("Not enough memory to load firmware file.\n");
- rc = -ENOMEM;
- goto err;
- }
- priv->firm_size = n_array;
-
- n = -1;
- while (p < endp) {
- __u32 type, size;
- v4l2_std_id id;
- __u16 int_freq = 0;
-
- n++;
- if (n >= n_array) {
- tuner_err("More firmware images in file than "
- "were expected!\n");
- goto corrupt;
- }
-
- /* Checks if there's enough bytes to read */
- if (endp - p < sizeof(type) + sizeof(id) + sizeof(size))
- goto header;
-
- type = get_unaligned_le32(p);
- p += sizeof(type);
-
- id = get_unaligned_le64(p);
- p += sizeof(id);
-
- if (type & HAS_IF) {
- int_freq = get_unaligned_le16(p);
- p += sizeof(int_freq);
- if (endp - p < sizeof(size))
- goto header;
- }
-
- size = get_unaligned_le32(p);
- p += sizeof(size);
-
- if (!size || size > endp - p) {
- tuner_err("Firmware type ");
- dump_firm_type(type);
- printk("(%x), id %llx is corrupted "
- "(size=%d, expected %d)\n",
- type, (unsigned long long)id,
- (unsigned)(endp - p), size);
- goto corrupt;
- }
-
- priv->firm[n].ptr = kzalloc(size, GFP_KERNEL);
- if (priv->firm[n].ptr == NULL) {
- tuner_err("Not enough memory to load firmware file.\n");
- rc = -ENOMEM;
- goto err;
- }
- tuner_dbg("Reading firmware type ");
- if (debug) {
- dump_firm_type_and_int_freq(type, int_freq);
- printk("(%x), id %llx, size=%d.\n",
- type, (unsigned long long)id, size);
- }
-
- memcpy(priv->firm[n].ptr, p, size);
- priv->firm[n].type = type;
- priv->firm[n].id = id;
- priv->firm[n].size = size;
- priv->firm[n].int_freq = int_freq;
-
- p += size;
- }
-
- if (n + 1 != priv->firm_size) {
- tuner_err("Firmware file is incomplete!\n");
- goto corrupt;
- }
-
- goto done;
-
-header:
- tuner_err("Firmware header is incomplete!\n");
-corrupt:
- rc = -EINVAL;
- tuner_err("Error: firmware file is corrupted!\n");
-
-err:
- tuner_info("Releasing partially loaded firmware file.\n");
- free_firmware(priv);
-
-done:
- if (rc == 0)
- tuner_dbg("Firmware files loaded.\n");
- else
- priv->state = XC2028_NODEV;
-
- return rc;
-}
-
-static int seek_firmware(struct dvb_frontend *fe, unsigned int type,
- v4l2_std_id *id)
-{
- struct xc2028_data *priv = fe->tuner_priv;
- int i, best_i = -1, best_nr_matches = 0;
- unsigned int type_mask = 0;
-
- tuner_dbg("%s called, want type=", __func__);
- if (debug) {
- dump_firm_type(type);
- printk("(%x), id %016llx.\n", type, (unsigned long long)*id);
- }
-
- if (!priv->firm) {
- tuner_err("Error! firmware not loaded\n");
- return -EINVAL;
- }
-
- if (((type & ~SCODE) == 0) && (*id == 0))
- *id = V4L2_STD_PAL;
-
- if (type & BASE)
- type_mask = BASE_TYPES;
- else if (type & SCODE) {
- type &= SCODE_TYPES;
- type_mask = SCODE_TYPES & ~HAS_IF;
- } else if (type & DTV_TYPES)
- type_mask = DTV_TYPES;
- else if (type & STD_SPECIFIC_TYPES)
- type_mask = STD_SPECIFIC_TYPES;
-
- type &= type_mask;
-
- if (!(type & SCODE))
- type_mask = ~0;
-
- /* Seek for exact match */
- for (i = 0; i < priv->firm_size; i++) {
- if ((type == (priv->firm[i].type & type_mask)) &&
- (*id == priv->firm[i].id))
- goto found;
- }
-
- /* Seek for generic video standard match */
- for (i = 0; i < priv->firm_size; i++) {
- v4l2_std_id match_mask;
- int nr_matches;
-
- if (type != (priv->firm[i].type & type_mask))
- continue;
-
- match_mask = *id & priv->firm[i].id;
- if (!match_mask)
- continue;
-
- if ((*id & match_mask) == *id)
- goto found; /* Supports all the requested standards */
-
- nr_matches = hweight64(match_mask);
- if (nr_matches > best_nr_matches) {
- best_nr_matches = nr_matches;
- best_i = i;
- }
- }
-
- if (best_nr_matches > 0) {
- tuner_dbg("Selecting best matching firmware (%d bits) for "
- "type=", best_nr_matches);
- dump_firm_type(type);
- printk("(%x), id %016llx:\n", type, (unsigned long long)*id);
- i = best_i;
- goto found;
- }
-
- /*FIXME: Would make sense to seek for type "hint" match ? */
-
- i = -ENOENT;
- goto ret;
-
-found:
- *id = priv->firm[i].id;
-
-ret:
- tuner_dbg("%s firmware for type=", (i < 0) ? "Can't find" : "Found");
- if (debug) {
- dump_firm_type(type);
- printk("(%x), id %016llx.\n", type, (unsigned long long)*id);
- }
- return i;
-}
-
-static inline int do_tuner_callback(struct dvb_frontend *fe, int cmd, int arg)
-{
- struct xc2028_data *priv = fe->tuner_priv;
-
- /* analog side (tuner-core) uses i2c_adap->algo_data.
- * digital side is not guaranteed to have algo_data defined.
- *
- * digital side will always have fe->dvb defined.
- * analog side (tuner-core) doesn't (yet) define fe->dvb.
- */
-
- return (!fe->callback) ? -EINVAL :
- fe->callback(((fe->dvb) && (fe->dvb->priv)) ?
- fe->dvb->priv : priv->i2c_props.adap->algo_data,
- DVB_FRONTEND_COMPONENT_TUNER, cmd, arg);
-}
-
-static int load_firmware(struct dvb_frontend *fe, unsigned int type,
- v4l2_std_id *id)
-{
- struct xc2028_data *priv = fe->tuner_priv;
- int pos, rc;
- unsigned char *p, *endp, buf[priv->ctrl.max_len];
-
- tuner_dbg("%s called\n", __func__);
-
- pos = seek_firmware(fe, type, id);
- if (pos < 0)
- return pos;
-
- tuner_info("Loading firmware for type=");
- dump_firm_type(priv->firm[pos].type);
- printk("(%x), id %016llx.\n", priv->firm[pos].type,
- (unsigned long long)*id);
-
- p = priv->firm[pos].ptr;
- endp = p + priv->firm[pos].size;
-
- while (p < endp) {
- __u16 size;
-
- /* Checks if there's enough bytes to read */
- if (p + sizeof(size) > endp) {
- tuner_err("Firmware chunk size is wrong\n");
- return -EINVAL;
- }
-
- size = le16_to_cpu(*(__u16 *) p);
- p += sizeof(size);
-
- if (size == 0xffff)
- return 0;
-
- if (!size) {
- /* Special callback command received */
- rc = do_tuner_callback(fe, XC2028_TUNER_RESET, 0);
- if (rc < 0) {
- tuner_err("Error at RESET code %d\n",
- (*p) & 0x7f);
- return -EINVAL;
- }
- continue;
- }
- if (size >= 0xff00) {
- switch (size) {
- case 0xff00:
- rc = do_tuner_callback(fe, XC2028_RESET_CLK, 0);
- if (rc < 0) {
- tuner_err("Error at RESET code %d\n",
- (*p) & 0x7f);
- return -EINVAL;
- }
- break;
- default:
- tuner_info("Invalid RESET code %d\n",
- size & 0x7f);
- return -EINVAL;
-
- }
- continue;
- }
-
- /* Checks for a sleep command */
- if (size & 0x8000) {
- msleep(size & 0x7fff);
- continue;
- }
-
- if ((size + p > endp)) {
- tuner_err("missing bytes: need %d, have %d\n",
- size, (int)(endp - p));
- return -EINVAL;
- }
-
- buf[0] = *p;
- p++;
- size--;
-
- /* Sends message chunks */
- while (size > 0) {
- int len = (size < priv->ctrl.max_len - 1) ?
- size : priv->ctrl.max_len - 1;
-
- memcpy(buf + 1, p, len);
-
- rc = i2c_send(priv, buf, len + 1);
- if (rc < 0) {
- tuner_err("%d returned from send\n", rc);
- return -EINVAL;
- }
-
- p += len;
- size -= len;
- }
-
- /* silently fail if the frontend doesn't support I2C flush */
- rc = do_tuner_callback(fe, XC2028_I2C_FLUSH, 0);
- if ((rc < 0) && (rc != -EINVAL)) {
- tuner_err("error executing flush: %d\n", rc);
- return rc;
- }
- }
- return 0;
-}
-
-static int load_scode(struct dvb_frontend *fe, unsigned int type,
- v4l2_std_id *id, __u16 int_freq, int scode)
-{
- struct xc2028_data *priv = fe->tuner_priv;
- int pos, rc;
- unsigned char *p;
-
- tuner_dbg("%s called\n", __func__);
-
- if (!int_freq) {
- pos = seek_firmware(fe, type, id);
- if (pos < 0)
- return pos;
- } else {
- for (pos = 0; pos < priv->firm_size; pos++) {
- if ((priv->firm[pos].int_freq == int_freq) &&
- (priv->firm[pos].type & HAS_IF))
- break;
- }
- if (pos == priv->firm_size)
- return -ENOENT;
- }
-
- p = priv->firm[pos].ptr;
-
- if (priv->firm[pos].type & HAS_IF) {
- if (priv->firm[pos].size != 12 * 16 || scode >= 16)
- return -EINVAL;
- p += 12 * scode;
- } else {
- /* 16 SCODE entries per file; each SCODE entry is 12 bytes and
- * has a 2-byte size header in the firmware format. */
- if (priv->firm[pos].size != 14 * 16 || scode >= 16 ||
- le16_to_cpu(*(__u16 *)(p + 14 * scode)) != 12)
- return -EINVAL;
- p += 14 * scode + 2;
- }
-
- tuner_info("Loading SCODE for type=");
- dump_firm_type_and_int_freq(priv->firm[pos].type,
- priv->firm[pos].int_freq);
- printk("(%x), id %016llx.\n", priv->firm[pos].type,
- (unsigned long long)*id);
-
- if (priv->firm_version < 0x0202)
- rc = send_seq(priv, {0x20, 0x00, 0x00, 0x00});
- else
- rc = send_seq(priv, {0xa0, 0x00, 0x00, 0x00});
- if (rc < 0)
- return -EIO;
-
- rc = i2c_send(priv, p, 12);
- if (rc < 0)
- return -EIO;
-
- rc = send_seq(priv, {0x00, 0x8c});
- if (rc < 0)
- return -EIO;
-
- return 0;
-}
-
-static int check_firmware(struct dvb_frontend *fe, unsigned int type,
- v4l2_std_id std, __u16 int_freq)
-{
- struct xc2028_data *priv = fe->tuner_priv;
- struct firmware_properties new_fw;
- int rc, retry_count = 0;
- u16 version, hwmodel;
- v4l2_std_id std0;
-
- tuner_dbg("%s called\n", __func__);
-
- rc = check_device_status(priv);
- if (rc < 0)
- return rc;
-
- if (priv->ctrl.mts && !(type & FM))
- type |= MTS;
-
-retry:
- new_fw.type = type;
- new_fw.id = std;
- new_fw.std_req = std;
- new_fw.scode_table = SCODE | priv->ctrl.scode_table;
- new_fw.scode_nr = 0;
- new_fw.int_freq = int_freq;
-
- tuner_dbg("checking firmware, user requested type=");
- if (debug) {
- dump_firm_type(new_fw.type);
- printk("(%x), id %016llx, ", new_fw.type,
- (unsigned long long)new_fw.std_req);
- if (!int_freq) {
- printk("scode_tbl ");
- dump_firm_type(priv->ctrl.scode_table);
- printk("(%x), ", priv->ctrl.scode_table);
- } else
- printk("int_freq %d, ", new_fw.int_freq);
- printk("scode_nr %d\n", new_fw.scode_nr);
- }
-
- /*
- * No need to reload base firmware if it matches and if the tuner
- * is not at sleep mode
- */
- if ((priv->state == XC2028_ACTIVE) &&
- (((BASE | new_fw.type) & BASE_TYPES) ==
- (priv->cur_fw.type & BASE_TYPES))) {
- tuner_dbg("BASE firmware not changed.\n");
- goto skip_base;
- }
-
- /* Updating BASE - forget about all currently loaded firmware */
- memset(&priv->cur_fw, 0, sizeof(priv->cur_fw));
-
- /* Reset is needed before loading firmware */
- rc = do_tuner_callback(fe, XC2028_TUNER_RESET, 0);
- if (rc < 0)
- goto fail;
-
- /* BASE firmwares are all std0 */
- std0 = 0;
- rc = load_firmware(fe, BASE | new_fw.type, &std0);
- if (rc < 0) {
- tuner_err("Error %d while loading base firmware\n",
- rc);
- goto fail;
- }
-
- /* Load INIT1, if needed */
- tuner_dbg("Load init1 firmware, if exists\n");
-
- rc = load_firmware(fe, BASE | INIT1 | new_fw.type, &std0);
- if (rc == -ENOENT)
- rc = load_firmware(fe, (BASE | INIT1 | new_fw.type) & ~F8MHZ,
- &std0);
- if (rc < 0 && rc != -ENOENT) {
- tuner_err("Error %d while loading init1 firmware\n",
- rc);
- goto fail;
- }
-
-skip_base:
- /*
- * No need to reload standard specific firmware if base firmware
- * was not reloaded and requested video standards have not changed.
- */
- if (priv->cur_fw.type == (BASE | new_fw.type) &&
- priv->cur_fw.std_req == std) {
- tuner_dbg("Std-specific firmware already loaded.\n");
- goto skip_std_specific;
- }
-
- /* Reloading std-specific firmware forces a SCODE update */
- priv->cur_fw.scode_table = 0;
-
- rc = load_firmware(fe, new_fw.type, &new_fw.id);
- if (rc == -ENOENT)
- rc = load_firmware(fe, new_fw.type & ~F8MHZ, &new_fw.id);
-
- if (rc < 0)
- goto fail;
-
-skip_std_specific:
- if (priv->cur_fw.scode_table == new_fw.scode_table &&
- priv->cur_fw.scode_nr == new_fw.scode_nr) {
- tuner_dbg("SCODE firmware already loaded.\n");
- goto check_device;
- }
-
- if (new_fw.type & FM)
- goto check_device;
-
- /* Load SCODE firmware, if exists */
- tuner_dbg("Trying to load scode %d\n", new_fw.scode_nr);
-
- rc = load_scode(fe, new_fw.type | new_fw.scode_table, &new_fw.id,
- new_fw.int_freq, new_fw.scode_nr);
-
-check_device:
- if (xc2028_get_reg(priv, 0x0004, &version) < 0 ||
- xc2028_get_reg(priv, 0x0008, &hwmodel) < 0) {
- tuner_err("Unable to read tuner registers.\n");
- goto fail;
- }
-
- tuner_dbg("Device is Xceive %d version %d.%d, "
- "firmware version %d.%d\n",
- hwmodel, (version & 0xf000) >> 12, (version & 0xf00) >> 8,
- (version & 0xf0) >> 4, version & 0xf);
-
-
- if (priv->ctrl.read_not_reliable)
- goto read_not_reliable;
-
- /* Check firmware version against what we downloaded. */
- if (priv->firm_version != ((version & 0xf0) << 4 | (version & 0x0f))) {
- if (!priv->ctrl.read_not_reliable) {
- tuner_err("Incorrect readback of firmware version.\n");
- goto fail;
- } else {
- tuner_err("Returned an incorrect version. However, "
- "read is not reliable enough. Ignoring it.\n");
- hwmodel = 3028;
- }
- }
-
- /* Check that the tuner hardware model remains consistent over time. */
- if (priv->hwmodel == 0 && (hwmodel == 2028 || hwmodel == 3028)) {
- priv->hwmodel = hwmodel;
- priv->hwvers = version & 0xff00;
- } else if (priv->hwmodel == 0 || priv->hwmodel != hwmodel ||
- priv->hwvers != (version & 0xff00)) {
- tuner_err("Read invalid device hardware information - tuner "
- "hung?\n");
- goto fail;
- }
-
-read_not_reliable:
- memcpy(&priv->cur_fw, &new_fw, sizeof(priv->cur_fw));
-
- /*
- * By setting BASE in cur_fw.type only after successfully loading all
- * firmwares, we can:
- * 1. Identify that BASE firmware with type=0 has been loaded;
- * 2. Tell whether BASE firmware was just changed the next time through.
- */
- priv->cur_fw.type |= BASE;
- priv->state = XC2028_ACTIVE;
-
- return 0;
-
-fail:
- priv->state = XC2028_SLEEP;
-
- memset(&priv->cur_fw, 0, sizeof(priv->cur_fw));
- if (retry_count < 8) {
- msleep(50);
- retry_count++;
- tuner_dbg("Retrying firmware load\n");
- goto retry;
- }
-
- if (rc == -ENOENT)
- rc = -EINVAL;
- return rc;
-}
-
-static int xc2028_signal(struct dvb_frontend *fe, u16 *strength)
-{
- struct xc2028_data *priv = fe->tuner_priv;
- u16 frq_lock, signal = 0;
- int rc, i;
-
- tuner_dbg("%s called\n", __func__);
-
- rc = check_device_status(priv);
- if (rc < 0)
- return rc;
-
- mutex_lock(&priv->lock);
-
- /* Sync Lock Indicator */
- for (i = 0; i < 3; i++) {
- rc = xc2028_get_reg(priv, XREG_LOCK, &frq_lock);
- if (rc < 0)
- goto ret;
-
- if (frq_lock)
- break;
- msleep(6);
- }
-
- /* Frequency didn't lock */
- if (frq_lock == 2)
- goto ret;
-
- /* Get SNR of the video signal */
- rc = xc2028_get_reg(priv, XREG_SNR, &signal);
- if (rc < 0)
- goto ret;
-
- /* Signal level is 3 bits only */
-
- signal = ((1 << 12) - 1) | ((signal & 0x07) << 12);
-
-ret:
- mutex_unlock(&priv->lock);
-
- *strength = signal;
-
- tuner_dbg("signal strength is %d\n", signal);
-
- return rc;
-}
-
-static int xc2028_get_afc(struct dvb_frontend *fe, s32 *afc)
-{
- struct xc2028_data *priv = fe->tuner_priv;
- int i, rc;
- u16 frq_lock = 0;
- s16 afc_reg = 0;
-
- rc = check_device_status(priv);
- if (rc < 0)
- return rc;
-
- mutex_lock(&priv->lock);
-
- /* Sync Lock Indicator */
- for (i = 0; i < 3; i++) {
- rc = xc2028_get_reg(priv, XREG_LOCK, &frq_lock);
- if (rc < 0)
- goto ret;
-
- if (frq_lock)
- break;
- msleep(6);
- }
-
- /* Frequency didn't lock */
- if (frq_lock == 2)
- goto ret;
-
- /* Get AFC */
- rc = xc2028_get_reg(priv, XREG_FREQ_ERROR, &afc_reg);
- if (rc < 0)
- goto ret;
-
- *afc = afc_reg * 15625; /* Hz */
-
- tuner_dbg("AFC is %d Hz\n", *afc);
-
-ret:
- mutex_unlock(&priv->lock);
-
- return rc;
-}
-
-#define DIV 15625
-
-static int generic_set_freq(struct dvb_frontend *fe, u32 freq /* in HZ */,
- enum v4l2_tuner_type new_type,
- unsigned int type,
- v4l2_std_id std,
- u16 int_freq)
-{
- struct xc2028_data *priv = fe->tuner_priv;
- int rc = -EINVAL;
- unsigned char buf[4];
- u32 div, offset = 0;
-
- tuner_dbg("%s called\n", __func__);
-
- mutex_lock(&priv->lock);
-
- tuner_dbg("should set frequency %d kHz\n", freq / 1000);
-
- if (check_firmware(fe, type, std, int_freq) < 0)
- goto ret;
-
- /* On some cases xc2028 can disable video output, if
- * very weak signals are received. By sending a soft
- * reset, this is re-enabled. So, it is better to always
- * send a soft reset before changing channels, to be sure
- * that xc2028 will be in a safe state.
- * Maybe this might also be needed for DTV.
- */
- switch (new_type) {
- case V4L2_TUNER_ANALOG_TV:
- rc = send_seq(priv, {0x00, 0x00});
-
- /* Analog mode requires offset = 0 */
- break;
- case V4L2_TUNER_RADIO:
- /* Radio mode requires offset = 0 */
- break;
- case V4L2_TUNER_DIGITAL_TV:
- /*
- * Digital modes require an offset to adjust to the
- * proper frequency. The offset depends on what
- * firmware version is used.
- */
-
- /*
- * Adjust to the center frequency. This is calculated by the
- * formula: offset = 1.25MHz - BW/2
- * For DTV 7/8, the firmware uses BW = 8000, so it needs a
- * further adjustment to get the frequency center on VHF
- */
-
- /*
- * The firmware DTV78 used to work fine in UHF band (8 MHz
- * bandwidth) but not at all in VHF band (7 MHz bandwidth).
- * The real problem was connected to the formula used to
- * calculate the center frequency offset in VHF band.
- * In fact, removing the 500KHz adjustment fixed the problem.
- * This is coherent to what was implemented for the DTV7
- * firmware.
- * In the end, now the center frequency is the same for all 3
- * firmwares (DTV7, DTV8, DTV78) and doesn't depend on channel
- * bandwidth.
- */
-
- if (priv->cur_fw.type & DTV6)
- offset = 1750000;
- else /* DTV7 or DTV8 or DTV78 */
- offset = 2750000;
-
- /*
- * xc3028 additional "magic"
- * Depending on the firmware version, it needs some adjustments
- * to properly centralize the frequency. This seems to be
- * needed to compensate the SCODE table adjustments made by
- * newer firmwares
- */
-
- /*
- * The proper adjustment would be to do it at s-code table.
- * However, this didn't work, as reported by
- * Robert Lowery <rglowery@exemail.com.au>
- */
-
-#if 0
- /*
- * Still need tests for XC3028L (firmware 3.2 or upper)
- * So, for now, let's just comment the per-firmware
- * version of this change. Reports with xc3028l working
- * with and without the lines bellow are welcome
- */
-
- if (priv->firm_version < 0x0302) {
- if (priv->cur_fw.type & DTV7)
- offset += 500000;
- } else {
- if (priv->cur_fw.type & DTV7)
- offset -= 300000;
- else if (type != ATSC) /* DVB @6MHz, DTV 8 and DTV 7/8 */
- offset += 200000;
- }
-#endif
- }
-
- div = (freq - offset + DIV / 2) / DIV;
-
- /* CMD= Set frequency */
- if (priv->firm_version < 0x0202)
- rc = send_seq(priv, {0x00, XREG_RF_FREQ, 0x00, 0x00});
- else
- rc = send_seq(priv, {0x80, XREG_RF_FREQ, 0x00, 0x00});
- if (rc < 0)
- goto ret;
-
- /* Return code shouldn't be checked.
- The reset CLK is needed only with tm6000.
- Driver should work fine even if this fails.
- */
- if (priv->ctrl.msleep)
- msleep(priv->ctrl.msleep);
- do_tuner_callback(fe, XC2028_RESET_CLK, 1);
-
- msleep(10);
-
- buf[0] = 0xff & (div >> 24);
- buf[1] = 0xff & (div >> 16);
- buf[2] = 0xff & (div >> 8);
- buf[3] = 0xff & (div);
-
- rc = i2c_send(priv, buf, sizeof(buf));
- if (rc < 0)
- goto ret;
- msleep(100);
-
- priv->frequency = freq;
-
- tuner_dbg("divisor= %*ph (freq=%d.%03d)\n", 4, buf,
- freq / 1000000, (freq % 1000000) / 1000);
-
- rc = 0;
-
-ret:
- mutex_unlock(&priv->lock);
-
- return rc;
-}
-
-static int xc2028_set_analog_freq(struct dvb_frontend *fe,
- struct analog_parameters *p)
-{
- struct xc2028_data *priv = fe->tuner_priv;
- unsigned int type=0;
-
- tuner_dbg("%s called\n", __func__);
-
- if (p->mode == V4L2_TUNER_RADIO) {
- type |= FM;
- if (priv->ctrl.input1)
- type |= INPUT1;
- return generic_set_freq(fe, (625l * p->frequency) / 10,
- V4L2_TUNER_RADIO, type, 0, 0);
- }
-
- /* if std is not defined, choose one */
- if (!p->std)
- p->std = V4L2_STD_MN;
-
- /* PAL/M, PAL/N, PAL/Nc and NTSC variants should use 6MHz firmware */
- if (!(p->std & V4L2_STD_MN))
- type |= F8MHZ;
-
- /* Add audio hack to std mask */
- p->std |= parse_audio_std_option();
-
- return generic_set_freq(fe, 62500l * p->frequency,
- V4L2_TUNER_ANALOG_TV, type, p->std, 0);
-}
-
-static int xc2028_set_params(struct dvb_frontend *fe)
-{
- struct dtv_frontend_properties *c = &fe->dtv_property_cache;
- u32 delsys = c->delivery_system;
- u32 bw = c->bandwidth_hz;
- struct xc2028_data *priv = fe->tuner_priv;
- int rc;
- unsigned int type = 0;
- u16 demod = 0;
-
- tuner_dbg("%s called\n", __func__);
-
- rc = check_device_status(priv);
- if (rc < 0)
- return rc;
-
- switch (delsys) {
- case SYS_DVBT:
- case SYS_DVBT2:
- /*
- * The only countries with 6MHz seem to be Taiwan/Uruguay.
- * Both seem to require QAM firmware for OFDM decoding
- * Tested in Taiwan by Terry Wu <terrywu2009@gmail.com>
- */
- if (bw <= 6000000)
- type |= QAM;
-
- switch (priv->ctrl.type) {
- case XC2028_D2633:
- type |= D2633;
- break;
- case XC2028_D2620:
- type |= D2620;
- break;
- case XC2028_AUTO:
- default:
- /* Zarlink seems to need D2633 */
- if (priv->ctrl.demod == XC3028_FE_ZARLINK456)
- type |= D2633;
- else
- type |= D2620;
- }
- break;
- case SYS_ATSC:
- /* The only ATSC firmware (at least on v2.7) is D2633 */
- type |= ATSC | D2633;
- break;
- /* DVB-S and pure QAM (FE_QAM) are not supported */
- default:
- return -EINVAL;
- }
-
- if (bw <= 6000000) {
- type |= DTV6;
- priv->ctrl.vhfbw7 = 0;
- priv->ctrl.uhfbw8 = 0;
- } else if (bw <= 7000000) {
- if (c->frequency < 470000000)
- priv->ctrl.vhfbw7 = 1;
- else
- priv->ctrl.uhfbw8 = 0;
- type |= (priv->ctrl.vhfbw7 && priv->ctrl.uhfbw8) ? DTV78 : DTV7;
- type |= F8MHZ;
- } else {
- if (c->frequency < 470000000)
- priv->ctrl.vhfbw7 = 0;
- else
- priv->ctrl.uhfbw8 = 1;
- type |= (priv->ctrl.vhfbw7 && priv->ctrl.uhfbw8) ? DTV78 : DTV8;
- type |= F8MHZ;
- }
-
- /* All S-code tables need a 200kHz shift */
- if (priv->ctrl.demod) {
- demod = priv->ctrl.demod;
-
- /*
- * Newer firmwares require a 200 kHz offset only for ATSC
- */
- if (type == ATSC || priv->firm_version < 0x0302)
- demod += 200;
- /*
- * The DTV7 S-code table needs a 700 kHz shift.
- *
- * DTV7 is only used in Australia. Germany or Italy may also
- * use this firmware after initialization, but a tune to a UHF
- * channel should then cause DTV78 to be used.
- *
- * Unfortunately, on real-field tests, the s-code offset
- * didn't work as expected, as reported by
- * Robert Lowery <rglowery@exemail.com.au>
- */
- }
-
- return generic_set_freq(fe, c->frequency,
- V4L2_TUNER_DIGITAL_TV, type, 0, demod);
-}
-
-static int xc2028_sleep(struct dvb_frontend *fe)
-{
- struct xc2028_data *priv = fe->tuner_priv;
- int rc;
-
- rc = check_device_status(priv);
- if (rc < 0)
- return rc;
-
- /* Avoid firmware reload on slow devices or if PM disabled */
- if (no_poweroff || priv->ctrl.disable_power_mgmt)
- return 0;
-
- tuner_dbg("Putting xc2028/3028 into poweroff mode.\n");
- if (debug > 1) {
- tuner_dbg("Printing sleep stack trace:\n");
- dump_stack();
- }
-
- mutex_lock(&priv->lock);
-
- if (priv->firm_version < 0x0202)
- rc = send_seq(priv, {0x00, XREG_POWER_DOWN, 0x00, 0x00});
- else
- rc = send_seq(priv, {0x80, XREG_POWER_DOWN, 0x00, 0x00});
-
- priv->state = XC2028_SLEEP;
-
- mutex_unlock(&priv->lock);
-
- return rc;
-}
-
-static int xc2028_dvb_release(struct dvb_frontend *fe)
-{
- struct xc2028_data *priv = fe->tuner_priv;
-
- tuner_dbg("%s called\n", __func__);
-
- mutex_lock(&xc2028_list_mutex);
-
- /* only perform final cleanup if this is the last instance */
- if (hybrid_tuner_report_instance_count(priv) == 1) {
- free_firmware(priv);
- kfree(priv->ctrl.fname);
- priv->ctrl.fname = NULL;
- }
-
- if (priv)
- hybrid_tuner_release_state(priv);
-
- mutex_unlock(&xc2028_list_mutex);
-
- fe->tuner_priv = NULL;
-
- return 0;
-}
-
-static int xc2028_get_frequency(struct dvb_frontend *fe, u32 *frequency)
-{
- struct xc2028_data *priv = fe->tuner_priv;
- int rc;
-
- tuner_dbg("%s called\n", __func__);
-
- rc = check_device_status(priv);
- if (rc < 0)
- return rc;
-
- *frequency = priv->frequency;
-
- return 0;
-}
-
-static void load_firmware_cb(const struct firmware *fw,
- void *context)
-{
- struct dvb_frontend *fe = context;
- struct xc2028_data *priv = fe->tuner_priv;
- int rc;
-
- tuner_dbg("request_firmware_nowait(): %s\n", fw ? "OK" : "error");
- if (!fw) {
- tuner_err("Could not load firmware %s.\n", priv->fname);
- priv->state = XC2028_NODEV;
- return;
- }
-
- rc = load_all_firmwares(fe, fw);
-
- release_firmware(fw);
-
- if (rc < 0)
- return;
- priv->state = XC2028_SLEEP;
-}
-
-static int xc2028_set_config(struct dvb_frontend *fe, void *priv_cfg)
-{
- struct xc2028_data *priv = fe->tuner_priv;
- struct xc2028_ctrl *p = priv_cfg;
- int rc = 0;
-
- tuner_dbg("%s called\n", __func__);
-
- mutex_lock(&priv->lock);
-
- /*
- * Copy the config data.
- * For the firmware name, keep a local copy of the string,
- * in order to avoid troubles during device release.
- */
- if (priv->ctrl.fname)
- kfree(priv->ctrl.fname);
- memcpy(&priv->ctrl, p, sizeof(priv->ctrl));
- if (p->fname) {
- priv->ctrl.fname = kstrdup(p->fname, GFP_KERNEL);
- if (priv->ctrl.fname == NULL)
- rc = -ENOMEM;
- }
-
- /*
- * If firmware name changed, frees firmware. As free_firmware will
- * reset the status to NO_FIRMWARE, this forces a new request_firmware
- */
- if (!firmware_name[0] && p->fname &&
- priv->fname && strcmp(p->fname, priv->fname))
- free_firmware(priv);
-
- if (priv->ctrl.max_len < 9)
- priv->ctrl.max_len = 13;
-
- if (priv->state == XC2028_NO_FIRMWARE) {
- if (!firmware_name[0])
- priv->fname = priv->ctrl.fname;
- else
- priv->fname = firmware_name;
-
- rc = request_firmware_nowait(THIS_MODULE, 1,
- priv->fname,
- priv->i2c_props.adap->dev.parent,
- GFP_KERNEL,
- fe, load_firmware_cb);
- if (rc < 0) {
- tuner_err("Failed to request firmware %s\n",
- priv->fname);
- priv->state = XC2028_NODEV;
- } else
- priv->state = XC2028_WAITING_FIRMWARE;
- }
- mutex_unlock(&priv->lock);
-
- return rc;
-}
-
-static const struct dvb_tuner_ops xc2028_dvb_tuner_ops = {
- .info = {
- .name = "Xceive XC3028",
- .frequency_min = 42000000,
- .frequency_max = 864000000,
- .frequency_step = 50000,
- },
-
- .set_config = xc2028_set_config,
- .set_analog_params = xc2028_set_analog_freq,
- .release = xc2028_dvb_release,
- .get_frequency = xc2028_get_frequency,
- .get_rf_strength = xc2028_signal,
- .get_afc = xc2028_get_afc,
- .set_params = xc2028_set_params,
- .sleep = xc2028_sleep,
-};
-
-struct dvb_frontend *xc2028_attach(struct dvb_frontend *fe,
- struct xc2028_config *cfg)
-{
- struct xc2028_data *priv;
- int instance;
-
- if (debug)
- printk(KERN_DEBUG "xc2028: Xcv2028/3028 init called!\n");
-
- if (NULL == cfg)
- return NULL;
-
- if (!fe) {
- printk(KERN_ERR "xc2028: No frontend!\n");
- return NULL;
- }
-
- mutex_lock(&xc2028_list_mutex);
-
- instance = hybrid_tuner_request_state(struct xc2028_data, priv,
- hybrid_tuner_instance_list,
- cfg->i2c_adap, cfg->i2c_addr,
- "xc2028");
- switch (instance) {
- case 0:
- /* memory allocation failure */
- goto fail;
- break;
- case 1:
- /* new tuner instance */
- priv->ctrl.max_len = 13;
-
- mutex_init(&priv->lock);
-
- fe->tuner_priv = priv;
- break;
- case 2:
- /* existing tuner instance */
- fe->tuner_priv = priv;
- break;
- }
-
- memcpy(&fe->ops.tuner_ops, &xc2028_dvb_tuner_ops,
- sizeof(xc2028_dvb_tuner_ops));
-
- tuner_info("type set to %s\n", "XCeive xc2028/xc3028 tuner");
-
- if (cfg->ctrl)
- xc2028_set_config(fe, cfg->ctrl);
-
- mutex_unlock(&xc2028_list_mutex);
-
- return fe;
-fail:
- mutex_unlock(&xc2028_list_mutex);
-
- xc2028_dvb_release(fe);
- return NULL;
-}
-
-EXPORT_SYMBOL(xc2028_attach);
-
-MODULE_DESCRIPTION("Xceive xc2028/xc3028 tuner driver");
-MODULE_AUTHOR("Michel Ludwig <michel.ludwig@gmail.com>");
-MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
-MODULE_LICENSE("GPL");
-MODULE_FIRMWARE(XC2028_DEFAULT_FIRMWARE);
-MODULE_FIRMWARE(XC3028L_DEFAULT_FIRMWARE);
projects / firefly-linux-kernel-4.4.55.git / blobdiff