drivers/media/video/rk29_camera_oneframe.c

   1 /*
   2  * V4L2 Driver for RK28 camera host
   3  *
   4  * Copyright (C) 2006, Sascha Hauer, Pengutronix
   5  * Copyright (C) 2008, Guennadi Liakhovetski <kernel@pengutronix.de>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  */
  12
  13 #include <linux/init.h>
  14 #include <linux/module.h>
  15 #include <linux/io.h>
  16 #include <linux/delay.h>
  17 #include <linux/slab.h>
  18 #include <linux/dma-mapping.h>
  19 #include <linux/errno.h>
  20 #include <linux/fs.h>
  21 #include <linux/interrupt.h>
  22 #include <linux/kernel.h>
  23 #include <linux/mm.h>
  24 #include <linux/moduleparam.h>
  25 #include <linux/time.h>
  26 #include <linux/clk.h>
  27 #include <linux/version.h>
  28 #include <linux/device.h>
  29 #include <linux/platform_device.h>
  30 #include <linux/mutex.h>
  31 #include <linux/videodev2.h>
  32 #include <mach/rk29_camera.h>
  33 #include <mach/rk29_iomap.h>
  34 #include <mach/iomux.h>
  35 #include <media/v4l2-common.h>
  36 #include <media/v4l2-dev.h>
  37 #include <media/videobuf-dma-contig.h>
  38 #include <media/soc_camera.h>
  39 #include <mach/rk29-ipp.h>
  40
  41
  42 static int debug;
  43 module_param(debug, int, S_IRUGO|S_IWUSR);
  44
  45 #define dprintk(level, fmt, arg...) do {                        \
  46         if (debug >= level)                                     \
  47         printk(KERN_WARNING"rk29xx_camera: " fmt , ## arg); } while (0)
  48
  49 #define RK29CAMERA_TR(format, ...) printk(KERN_ERR format, ## __VA_ARGS__)
  50 #define RK29CAMERA_DG(format, ...) dprintk(0, format, ## __VA_ARGS__)
  51
  52 // VIP Reg Offset
  53 #define RK29_VIP_AHBR_CTRL                0x00
  54 #define RK29_VIP_INT_MASK                 0x04
  55 #define RK29_VIP_INT_STS                  0x08
  56 #define RK29_VIP_STS                      0x0c
  57 #define RK29_VIP_CTRL                     0x10
  58 #define RK29_VIP_CAPTURE_F1SA_Y           0x14
  59 #define RK29_VIP_CAPTURE_F1SA_UV          0x18
  60 #define RK29_VIP_CAPTURE_F1SA_Cr          0x1c
  61 #define RK29_VIP_CAPTURE_F2SA_Y           0x20
  62 #define RK29_VIP_CAPTURE_F2SA_UV          0x24
  63 #define RK29_VIP_CAPTURE_F2SA_Cr          0x28
  64 #define RK29_VIP_FB_SR                    0x2c
  65 #define RK29_VIP_FS                       0x30
  66 #define RK29_VIP_VIPRESERVED              0x34
  67 #define RK29_VIP_CROP                     0x38
  68 #define RK29_VIP_CRM                      0x3c
  69 #define RK29_VIP_RESET                    0x40
  70 #define RK29_VIP_L_SFT                    0x44
  71
  72 //The key register bit descrition
  73 // VIP_CTRL Reg
  74 #define  DISABLE_CAPTURE              (0x00<<0)
  75 #define  ENABLE_CAPTURE               (0x01<<0)
  76 #define  HSY_HIGH_ACTIVE              (0x00<<1)
  77 #define  HSY_LOW_ACTIVE               (0x01<<1)
  78 #define  VIP_CCIR656                  (0x00<<2)
  79 #define  VIP_SENSOR                   (0x01<<2)
  80 #define  SENSOR_UYVY                  (0x00<<3)
  81 #define  SENSOR_YUYV                  (0x01<<3)
  82 #define  VIP_YUV                      (0x00<<4)
  83 #define  VIP_RAW                      (0x01<<4)
  84 #define  CON_OR_PIN                   (0x00<<5)
  85 #define  ONEFRAME                     (0x01<<5)
  86 #define  VIPREGYUV420                 (0x00<<6)
  87 #define  VIPREGYUV422                 (0x01<<6)
  88 #define  FIELD0_START                 (0x00<<7)
  89 #define  FIELD1_START                 (0x01<<7)
  90 #define  CONTINUOUS                   (0x00<<8)
  91 #define  PING_PONG                    (0x01<<8)
  92 #define  POSITIVE_EDGE                (0x00<<9)
  93 #define  NEGATIVE_EDGE                (0x01<<9)
  94 #define  VIPREGNTSC                   (0x00<<10)
  95 #define  VIPREGPAL                    (0x01<<10)
  96 #define  VIP_DATA_LITTLEEND           (0x00<<11)
  97 #define  VIP_DATA_BIGEND              (0x01<<11)
  98 #define  VSY_LOW_ACTIVE               (0x00<<12)
  99 #define  VSY_HIGH_ACTIVE              (0x01<<12)
 100 #define  VIP_RAWINPUT_BYPASS          (0x00<<13)
 101 #define  VIP_RAWINPUT_POSITIVE_EDGE   (0x01<<13)
 102 #define  VIP_RAWINPUT_NEGATIVE_EDGE   (0x02<<13)
 103
 104 // GRF_SOC_CON0 Reg
 105 #define  GRF_SOC_CON0_Reg             0xbc
 106 #define  VIP_AXIMASTER                (0x00<<0)
 107 #define  VIP_AHBMASTER                (0x01<<2)
 108
 109 // GRF_OS_REG0
 110 #define  GRF_OS_REG0                  0xd0
 111 #define  VIP_ACLK_DIV_HCLK_1          (0x00<<0)
 112 #define  VIP_ACLK_DIV_HCLK_2          (0x01<<0)
 113
 114
 115 #define MIN(x,y)   ((x<y) ? x: y)
 116 #define MAX(x,y)    ((x>y) ? x: y)
 117 #define RK29_SENSOR_24MHZ      24           /* MHz */
 118 #define RK29_SENSOR_48MHZ      48
 119
 120 #define write_vip_reg(addr, val)  __raw_writel(val, addr+(rk29_camdev_info_ptr->base))
 121 #define read_vip_reg(addr) __raw_readl(addr+(rk29_camdev_info_ptr->base))
 122 #define mask_vip_reg(addr, msk, val)    write_vip_reg(addr, (val)|((~(msk))&read_vip_reg(addr)))
 123
 124 #define write_grf_reg(addr, val)  __raw_writel(val, addr+RK29_GRF_BASE)
 125 #define read_grf_reg(addr) __raw_readl(addr+RK29_GRF_BASE)
 126 #define mask_grf_reg(addr, msk, val)    write_vip_reg(addr, (val)|((~(msk))&read_vip_reg(addr)))
 127
 128 //Configure Macro
 129 #define RK29_CAM_VERSION_CODE KERNEL_VERSION(0, 0, 1)
 130
 131 /* limit to rk29 hardware capabilities */
 132 #define RK29_CAM_BUS_PARAM   (SOCAM_MASTER |\
 133                 SOCAM_HSYNC_ACTIVE_HIGH |\
 134                 SOCAM_HSYNC_ACTIVE_LOW |\
 135                 SOCAM_VSYNC_ACTIVE_HIGH |\
 136                 SOCAM_VSYNC_ACTIVE_LOW |\
 137                 SOCAM_PCLK_SAMPLE_RISING |\
 138                 SOCAM_PCLK_SAMPLE_FALLING|\
 139                 SOCAM_DATA_ACTIVE_HIGH |\
 140                 SOCAM_DATA_ACTIVE_LOW|\
 141                 SOCAM_DATAWIDTH_8|SOCAM_DATAWIDTH_10|\
 142                 SOCAM_MCLK_24MHZ |SOCAM_MCLK_48MHZ)
 143
 144 #define RK29_CAM_W_MIN        48
 145 #define RK29_CAM_H_MIN        32
 146 #define RK29_CAM_W_MAX        3856            /* ddl@rock-chips.com : 10M Pixel */
 147 #define RK29_CAM_H_MAX        2764
 148 #define RK29_CAM_FRAME_INVAL_INIT 3
 149 #define RK29_CAM_FRAME_INVAL_DC 3          /* ddl@rock-chips.com :  */
 150
 151 #define RK29_CAM_AXI   0
 152 #define RK29_CAM_AHB   1
 153 #define CONFIG_RK29_CAM_WORK_BUS    RK29_CAM_AXI
 154
 155 extern void videobuf_dma_contig_free(struct videobuf_queue *q, struct videobuf_buffer *buf);
 156 extern dma_addr_t videobuf_to_dma_contig(struct videobuf_buffer *buf);
 157 extern void videobuf_queue_dma_contig_init(struct videobuf_queue *q,
 158             struct videobuf_queue_ops *ops,
 159             struct device *dev,
 160             spinlock_t *irqlock,
 161             enum v4l2_buf_type type,
 162             enum v4l2_field field,
 163             unsigned int msize,
 164             void *priv);
 165
 166 /* buffer for one video frame */
 167 struct rk29_buffer
 168 {
 169     /* common v4l buffer stuff -- must be first */
 170     struct videobuf_buffer vb;
 171     const struct soc_camera_data_format        *fmt;
 172     int                 inwork;
 173 };
 174 enum rk29_camera_reg_state
 175 {
 176         Reg_Invalidate,
 177         Reg_Validate
 178 };
 179
 180 struct rk29_camera_reg
 181 {
 182         unsigned int VipCtrl;
 183         unsigned int VipCrop;
 184         unsigned int VipFs;
 185         unsigned int VipIntMsk;
 186         unsigned int VipCrm;
 187         enum rk29_camera_reg_state Inval;
 188 };
 189 struct rk29_camera_work
 190 {
 191         struct videobuf_buffer *vb;
 192         struct rk29_camera_dev *pcdev;
 193         struct work_struct work;
 194 };
 195 struct rk29_camera_dev
 196 {
 197     struct soc_camera_host      soc_host;
 198     struct device               *dev;
 199     /* RK2827x is only supposed to handle one camera on its Quick Capture
 200      * interface. If anyone ever builds hardware to enable more than
 201      * one camera, they will have to modify this driver too */
 202     struct soc_camera_device *icd;
 203
 204         struct clk *aclk_ddr_lcdc;
 205         struct clk *aclk_disp_matrix;
 206
 207         struct clk *hclk_cpu_display;
 208         struct clk *vip_slave;
 209
 210         struct clk *vip_out;
 211         struct clk *vip_input;
 212         struct clk *vip_bus;
 213
 214         struct clk *hclk_disp_matrix;
 215         struct clk *vip_matrix;
 216
 217         struct clk *pd_display;
 218
 219     void __iomem *base;
 220         void __iomem *grf_base;
 221     int frame_inval;           /* ddl@rock-chips.com : The first frames is invalidate  */
 222     unsigned int irq;
 223         unsigned int fps;
 224         unsigned int pixfmt;
 225         unsigned int vipmem_phybase;
 226         unsigned int vipmem_size;
 227         unsigned int vipmem_bsize;
 228         int host_width;
 229         int host_height;
 230
 231     struct rk29camera_platform_data *pdata;
 232     struct resource             *res;
 233
 234     struct list_head    capture;
 235
 236     spinlock_t          lock;
 237
 238     struct videobuf_buffer      *active;
 239         struct videobuf_queue *vb_vidq_ptr;
 240         struct rk29_camera_reg reginfo_suspend;
 241         struct workqueue_struct *camera_wq;
 242         struct rk29_camera_work *camera_work;
 243         unsigned int camera_work_count;
 244         struct hrtimer fps_timer;
 245         struct work_struct camera_reinit_work;
 246 };
 247 static DEFINE_MUTEX(camera_lock);
 248 static const char *rk29_cam_driver_description = "RK29_Camera";
 249 static struct rk29_camera_dev *rk29_camdev_info_ptr;
 250
 251 static int rk29_camera_s_stream(struct soc_camera_device *icd, int enable);
 252
 253
 254 /*
 255  *  Videobuf operations
 256  */
 257 static int rk29_videobuf_setup(struct videobuf_queue *vq, unsigned int *count,
 258                                unsigned int *size)
 259 {
 260     struct soc_camera_device *icd = vq->priv_data;
 261         struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
 262     struct rk29_camera_dev *pcdev = ici->priv;
 263     int bytes_per_pixel = (icd->current_fmt->depth + 7) >> 3;
 264
 265     dev_dbg(&icd->dev, "count=%d, size=%d\n", *count, *size);
 266
 267         /* planar capture requires Y, U and V buffers to be page aligned */
 268         #if 0
 269     *size = PAGE_ALIGN(icd->user_width* icd->user_height * bytes_per_pixel);                               /* Y pages UV pages, yuv422*/
 270         pcdev->vipmem_bsize = PAGE_ALIGN(pcdev->host_width * pcdev->host_height * bytes_per_pixel);
 271         #else
 272         *size = PAGE_ALIGN((icd->user_width* icd->user_height * icd->current_fmt->depth + 7)>>3);                               /* Y pages UV pages, yuv422*/
 273         pcdev->vipmem_bsize = PAGE_ALIGN((pcdev->host_width * pcdev->host_height * icd->current_fmt->depth + 7)>>3);
 274         #endif
 275
 276         if ((pcdev->host_width != pcdev->icd->user_width) || (pcdev->host_height != pcdev->icd->user_height)) {
 277
 278                 if (*count > pcdev->vipmem_size/pcdev->vipmem_bsize) {    /* Buffers must be limited, when this resolution is genered by IPP */
 279                         *count = pcdev->vipmem_size/pcdev->vipmem_bsize;
 280                 }
 281
 282                 if ((pcdev->camera_work_count != *count) && pcdev->camera_work) {
 283                         kfree(pcdev->camera_work);
 284                         pcdev->camera_work = NULL;
 285                         pcdev->camera_work_count = 0;
 286                 }
 287
 288                 if (pcdev->camera_work == NULL) {
 289                         pcdev->camera_work = kmalloc(sizeof(struct rk29_camera_work)*(*count), GFP_KERNEL);
 290                         if (pcdev->camera_work == NULL) {
 291                                 RK29CAMERA_TR("\n %s kmalloc fail\n", __FUNCTION__);
 292                                 BUG();
 293                         }
 294                         pcdev->camera_work_count = *count;
 295                 }
 296         }
 297
 298     RK29CAMERA_DG("%s..%d.. videobuf size:%d, vipmem_buf size:%d \n",__FUNCTION__,__LINE__, *size,pcdev->vipmem_bsize);
 299
 300     return 0;
 301 }
 302 static void rk29_videobuf_free(struct videobuf_queue *vq, struct rk29_buffer *buf)
 303 {
 304     struct soc_camera_device *icd = vq->priv_data;
 305
 306     dev_dbg(&icd->dev, "%s (vb=0x%p) 0x%08lx %zd\n", __func__,
 307             &buf->vb, buf->vb.baddr, buf->vb.bsize);
 308
 309         /* ddl@rock-chips.com: buf_release called soc_camera_streamoff and soc_camera_close*/
 310         if (buf->vb.state == VIDEOBUF_NEEDS_INIT)
 311                 return;
 312
 313     if (in_interrupt())
 314         BUG();
 315
 316     videobuf_dma_contig_free(vq, &buf->vb);
 317     dev_dbg(&icd->dev, "%s freed\n", __func__);
 318     buf->vb.state = VIDEOBUF_NEEDS_INIT;
 319         return;
 320 }
 321 static int rk29_videobuf_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb, enum v4l2_field field)
 322 {
 323     struct soc_camera_device *icd = vq->priv_data;
 324     struct rk29_buffer *buf;
 325     int ret;
 326
 327     buf = container_of(vb, struct rk29_buffer, vb);
 328
 329     dev_dbg(&icd->dev, "%s (vb=0x%p) 0x%08lx %zd\n", __func__,
 330             vb, vb->baddr, vb->bsize);
 331
 332     //RK29CAMERA_TR("\n%s..%d..  \n",__FUNCTION__,__LINE__);
 333
 334     /* Added list head initialization on alloc */
 335     WARN_ON(!list_empty(&vb->queue));
 336
 337     /* This can be useful if you want to see if we actually fill
 338      * the buffer with something */
 339     //memset((void *)vb->baddr, 0xaa, vb->bsize);
 340
 341     BUG_ON(NULL == icd->current_fmt);
 342
 343     if (buf->fmt    != icd->current_fmt ||
 344             vb->width   != icd->user_width ||
 345             vb->height  != icd->user_height ||
 346              vb->field   != field) {
 347         buf->fmt    = icd->current_fmt;
 348         vb->width   = icd->user_width;
 349         vb->height  = icd->user_height;
 350         vb->field   = field;
 351         vb->state   = VIDEOBUF_NEEDS_INIT;
 352     }
 353
 354     vb->size = (((vb->width * vb->height *buf->fmt->depth) + 7) >> 3) ;          /* ddl@rock-chips.com : fmt->depth is coorect */
 355     if (0 != vb->baddr && vb->bsize < vb->size) {
 356         ret = -EINVAL;
 357         goto out;
 358     }
 359
 360     if (vb->state == VIDEOBUF_NEEDS_INIT) {
 361         ret = videobuf_iolock(vq, vb, NULL);
 362         if (ret) {
 363             goto fail;
 364         }
 365         vb->state = VIDEOBUF_PREPARED;
 366     }
 367     //RK29CAMERA_TR("\n%s..%d.. \n",__FUNCTION__,__LINE__);
 368     return 0;
 369 fail:
 370     rk29_videobuf_free(vq, buf);
 371 out:
 372     return ret;
 373 }
 374
 375 static inline void rk29_videobuf_capture(struct videobuf_buffer *vb)
 376 {
 377         unsigned int y_addr,uv_addr;
 378         struct rk29_camera_dev *pcdev = rk29_camdev_info_ptr;
 379
 380     if (vb) {
 381                 if ((pcdev->host_width != pcdev->icd->user_width) || (pcdev->host_height != pcdev->icd->user_height)) {
 382                         y_addr = pcdev->vipmem_phybase + vb->i*pcdev->vipmem_bsize;
 383                         uv_addr = y_addr + pcdev->host_width*pcdev->host_height;
 384
 385                         if (y_addr > (pcdev->vipmem_phybase + pcdev->vipmem_size - pcdev->vipmem_bsize)) {
 386                                 RK29CAMERA_TR("vipmem for IPP is overflow! %dx%d -> %dx%d vb_index:%d\n",pcdev->host_width,pcdev->host_height,
 387                                                   pcdev->icd->user_width,pcdev->icd->user_height, vb->i);
 388                                 BUG();
 389                         }
 390                 } else {
 391                         y_addr = vb->boff;
 392                         uv_addr = y_addr + vb->width * vb->height;
 393                 }
 394         write_vip_reg(RK29_VIP_CAPTURE_F1SA_Y, y_addr);
 395         write_vip_reg(RK29_VIP_CAPTURE_F1SA_UV, uv_addr);
 396         write_vip_reg(RK29_VIP_CAPTURE_F2SA_Y, y_addr);
 397         write_vip_reg(RK29_VIP_CAPTURE_F2SA_UV, uv_addr);
 398         write_vip_reg(RK29_VIP_FB_SR,  0x00000002);//frame1 has been ready to receive data,frame 2 is not used
 399     }
 400 }
 401 /* Locking: Caller holds q->irqlock */
 402 static void rk29_videobuf_queue(struct videobuf_queue *vq,
 403                                 struct videobuf_buffer *vb)
 404 {
 405     struct soc_camera_device *icd = vq->priv_data;
 406     struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
 407     struct rk29_camera_dev *pcdev = ici->priv;
 408
 409     dev_dbg(&icd->dev, "%s (vb=0x%p) 0x%08lx %zd\n", __func__,
 410             vb, vb->baddr, vb->bsize);
 411
 412     vb->state = VIDEOBUF_QUEUED;
 413
 414         if (list_empty(&pcdev->capture)) {
 415                 list_add_tail(&vb->queue, &pcdev->capture);
 416         } else {
 417                 if (list_entry(pcdev->capture.next, struct videobuf_buffer, queue) != vb)
 418                         list_add_tail(&vb->queue, &pcdev->capture);
 419                 else
 420                         BUG();    /* ddl@rock-chips.com : The same videobuffer queue again */
 421         }
 422
 423     if (!pcdev->active) {
 424         pcdev->active = vb;
 425         rk29_videobuf_capture(vb);
 426     }
 427 }
 428 static int rk29_pixfmt2ippfmt(unsigned int pixfmt, int *ippfmt)
 429 {
 430         switch (pixfmt)
 431         {
 432                 case V4L2_PIX_FMT_YUV422P:
 433                 {
 434                         *ippfmt = IPP_Y_CBCR_H2V1;
 435                         break;
 436                 }
 437                 case V4L2_PIX_FMT_YUV420:
 438                 {
 439                         *ippfmt = IPP_Y_CBCR_H2V2;
 440                         break;
 441                 }
 442                 default:
 443                         goto rk29_pixfmt2ippfmt_err;
 444         }
 445
 446         return 0;
 447 rk29_pixfmt2ippfmt_err:
 448         return -1;
 449 }
 450 static void rk29_camera_capture_process(struct work_struct *work)
 451 {
 452         struct rk29_camera_work *camera_work = container_of(work, struct rk29_camera_work, work);
 453         struct videobuf_buffer *vb = camera_work->vb;
 454         struct rk29_camera_dev *pcdev = camera_work->pcdev;
 455         struct rk29_ipp_req ipp_req;
 456         unsigned long int flags;
 457
 458         ipp_req.src0.YrgbMst = pcdev->vipmem_phybase + vb->i*pcdev->vipmem_bsize;
 459         ipp_req.src0.CbrMst= ipp_req.src0.YrgbMst + pcdev->host_width*pcdev->host_height;
 460         ipp_req.src0.w = pcdev->host_width;
 461         ipp_req.src0.h = pcdev->host_height;
 462         rk29_pixfmt2ippfmt(pcdev->pixfmt, &ipp_req.src0.fmt);
 463
 464         ipp_req.dst0.YrgbMst = vb->boff;
 465         ipp_req.dst0.CbrMst= vb->boff+vb->width * vb->height;
 466         ipp_req.dst0.w = pcdev->icd->user_width;
 467         ipp_req.dst0.h = pcdev->icd->user_height;
 468         rk29_pixfmt2ippfmt(pcdev->pixfmt, &ipp_req.dst0.fmt);
 469
 470         ipp_req.src_vir_w = ipp_req.src0.w;
 471         ipp_req.dst_vir_w = ipp_req.dst0.w;
 472         ipp_req.timeout = 100;
 473         ipp_req.flag = IPP_ROT_0;
 474
 475         if (ipp_do_blit(&ipp_req)) {
 476                 spin_lock_irqsave(&pcdev->lock, flags);
 477                 vb->state = VIDEOBUF_ERROR;
 478                 spin_unlock_irqrestore(&pcdev->lock, flags);
 479                 RK29CAMERA_TR("Capture image(vb->i:0x%x) which IPP operated is error!\n", vb->i);
 480                 RK29CAMERA_TR("ipp_req.src0.YrgbMst:0x%x ipp_req.src0.CbrMst:0x%x \n", ipp_req.src0.YrgbMst,ipp_req.src0.CbrMst);
 481                 RK29CAMERA_TR("ipp_req.src0.w:0x%x ipp_req.src0.h:0x%x \n",ipp_req.src0.w,ipp_req.src0.h);
 482                 RK29CAMERA_TR("ipp_req.src0.fmt:0x%x\n",ipp_req.src0.fmt);
 483                 RK29CAMERA_TR("ipp_req.dst0.YrgbMst:0x%x ipp_req.dst0.CbrMst:0x%x \n",ipp_req.dst0.YrgbMst,ipp_req.dst0.CbrMst);
 484                 RK29CAMERA_TR("ipp_req.dst0.w:0x%x ipp_req.dst0.h:0x%x \n",ipp_req.dst0.w ,ipp_req.dst0.h);
 485                 RK29CAMERA_TR("ipp_req.dst0.fmt:0x%x\n",ipp_req.dst0.fmt);
 486                 RK29CAMERA_TR("ipp_req.src_vir_w:0x%x ipp_req.dst_vir_w :0x%x\n",ipp_req.src_vir_w ,ipp_req.dst_vir_w);
 487             RK29CAMERA_TR("ipp_req.timeout:0x%x ipp_req.flag :0x%x\n",ipp_req.timeout,ipp_req.flag);
 488         }
 489
 490         wake_up(&(camera_work->vb->done));
 491 }
 492 static irqreturn_t rk29_camera_irq(int irq, void *data)
 493 {
 494     struct rk29_camera_dev *pcdev = data;
 495     struct videobuf_buffer *vb;
 496         struct rk29_camera_work *wk;
 497
 498     read_vip_reg(RK29_VIP_INT_STS);    /* clear vip interrupte single  */
 499     /* ddl@rock-chps.com : Current VIP is run in One Frame Mode, Frame 1 is validate */
 500     if (read_vip_reg(RK29_VIP_FB_SR) & 0x01) {
 501                 pcdev->fps++;
 502                 if (!pcdev->active)
 503                         goto RK29_CAMERA_IRQ_END;
 504
 505         if (pcdev->frame_inval>0) {
 506             pcdev->frame_inval--;
 507             rk29_videobuf_capture(pcdev->active);
 508             goto RK29_CAMERA_IRQ_END;
 509         } else if (pcdev->frame_inval) {
 510                 RK29CAMERA_TR("frame_inval : %0x",pcdev->frame_inval);
 511             pcdev->frame_inval = 0;
 512         }
 513
 514         vb = pcdev->active;
 515                 /* ddl@rock-chips.com : this vb may be deleted from queue */
 516                 if ((vb->state == VIDEOBUF_QUEUED) || (vb->state == VIDEOBUF_ACTIVE)) {
 517                 list_del_init(&vb->queue);
 518                 }
 519
 520         pcdev->active = NULL;
 521         if (!list_empty(&pcdev->capture)) {
 522             pcdev->active = list_entry(pcdev->capture.next, struct videobuf_buffer, queue);
 523                         if (pcdev->active) {
 524                                 rk29_videobuf_capture(pcdev->active);
 525                         }
 526         }
 527
 528         if (pcdev->active == NULL) {
 529                         RK29CAMERA_DG("%s video_buf queue is empty!\n",__FUNCTION__);
 530         }
 531
 532                 if ((vb->state == VIDEOBUF_QUEUED) || (vb->state == VIDEOBUF_ACTIVE)) {
 533                 vb->state = VIDEOBUF_DONE;
 534                 do_gettimeofday(&vb->ts);
 535                 vb->field_count++;
 536                 }
 537
 538                 if ((pcdev->host_width != pcdev->icd->user_width) || (pcdev->host_height != pcdev->icd->user_height)) {
 539                         wk = pcdev->camera_work + vb->i;
 540                         INIT_WORK(&(wk->work), rk29_camera_capture_process);
 541                         wk->vb = vb;
 542                         wk->pcdev = pcdev;
 543                         queue_work(pcdev->camera_wq, &(wk->work));
 544                 } else {
 545                         wake_up(&vb->done);
 546                 }
 547     }
 548
 549 RK29_CAMERA_IRQ_END:
 550     return IRQ_HANDLED;
 551 }
 552
 553
 554 static void rk29_videobuf_release(struct videobuf_queue *vq,
 555                                   struct videobuf_buffer *vb)
 556 {
 557     struct rk29_buffer *buf = container_of(vb, struct rk29_buffer, vb);
 558     struct soc_camera_device *icd = vq->priv_data;
 559     struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
 560     struct rk29_camera_dev *pcdev = ici->priv;
 561
 562 #ifdef DEBUG
 563     dev_dbg(&icd->dev, "%s (vb=0x%p) 0x%08lx %d\n", __func__,
 564             vb, vb->baddr, vb->bsize);
 565
 566     switch (vb->state)
 567     {
 568         case VIDEOBUF_ACTIVE:
 569             dev_dbg(&icd->dev, "%s (active)\n", __func__);
 570             break;
 571         case VIDEOBUF_QUEUED:
 572             dev_dbg(&icd->dev, "%s (queued)\n", __func__);
 573             break;
 574         case VIDEOBUF_PREPARED:
 575             dev_dbg(&icd->dev, "%s (prepared)\n", __func__);
 576             break;
 577         default:
 578             dev_dbg(&icd->dev, "%s (unknown)\n", __func__);
 579             break;
 580     }
 581 #endif
 582         if (vb == pcdev->active) {
 583                 RK29CAMERA_DG("%s Wait for this video buf(0x%x) write finished!\n ",__FUNCTION__,(unsigned int)vb);
 584                 interruptible_sleep_on_timeout(&vb->done, 100);
 585                 RK29CAMERA_DG("%s This video buf(0x%x) write finished, release now!!\n",__FUNCTION__,(unsigned int)vb);
 586         }
 587     rk29_videobuf_free(vq, buf);
 588 }
 589
 590 static struct videobuf_queue_ops rk29_videobuf_ops =
 591 {
 592     .buf_setup      = rk29_videobuf_setup,
 593     .buf_prepare    = rk29_videobuf_prepare,
 594     .buf_queue      = rk29_videobuf_queue,
 595     .buf_release    = rk29_videobuf_release,
 596 };
 597
 598 static void rk29_camera_init_videobuf(struct videobuf_queue *q,
 599                                       struct soc_camera_device *icd)
 600 {
 601     struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
 602     struct rk29_camera_dev *pcdev = ici->priv;
 603
 604     /* We must pass NULL as dev pointer, then all pci_* dma operations
 605      * transform to normal dma_* ones. */
 606     videobuf_queue_dma_contig_init(q,
 607                                    &rk29_videobuf_ops,
 608                                    ici->v4l2_dev.dev, &pcdev->lock,
 609                                    V4L2_BUF_TYPE_VIDEO_CAPTURE,
 610                                    V4L2_FIELD_NONE,
 611                                    sizeof(struct rk29_buffer),
 612                                    icd);
 613         pcdev->vb_vidq_ptr = q;         /* ddl@rock-chips.com */
 614 }
 615 static int rk29_camera_activate(struct rk29_camera_dev *pcdev, struct soc_camera_device *icd)
 616 {
 617     unsigned long sensor_bus_flags = SOCAM_MCLK_24MHZ;
 618     struct clk *parent;
 619
 620     RK29CAMERA_DG("%s..%d.. \n",__FUNCTION__,__LINE__);
 621     if (!pcdev->aclk_ddr_lcdc || !pcdev->aclk_disp_matrix ||  !pcdev->hclk_cpu_display ||
 622                 !pcdev->vip_slave || !pcdev->vip_out || !pcdev->vip_input || !pcdev->vip_bus || !pcdev->pd_display ||
 623                 IS_ERR(pcdev->aclk_ddr_lcdc) || IS_ERR(pcdev->aclk_disp_matrix) ||  IS_ERR(pcdev->hclk_cpu_display) || IS_ERR(pcdev->pd_display) ||
 624                 IS_ERR(pcdev->vip_slave) || IS_ERR(pcdev->vip_out) || IS_ERR(pcdev->vip_input) || IS_ERR(pcdev->vip_bus))  {
 625
 626         RK29CAMERA_TR(KERN_ERR "failed to get vip_clk(axi) source\n");
 627         goto RK29_CAMERA_ACTIVE_ERR;
 628     }
 629
 630         if (!pcdev->hclk_disp_matrix || !pcdev->vip_matrix ||
 631                 IS_ERR(pcdev->hclk_disp_matrix) || IS_ERR(pcdev->vip_matrix))  {
 632
 633         RK29CAMERA_TR(KERN_ERR "failed to get vip_clk(ahb) source\n");
 634         goto RK29_CAMERA_ACTIVE_ERR;
 635     }
 636
 637         clk_enable(pcdev->pd_display);
 638
 639         clk_enable(pcdev->aclk_ddr_lcdc);
 640         clk_enable(pcdev->aclk_disp_matrix);
 641
 642         clk_enable(pcdev->hclk_cpu_display);
 643         clk_enable(pcdev->vip_slave);
 644
 645 #if (CONFIG_RK29_CAM_WORK_BUS==RK29_CAM_AHB)
 646         clk_enable(pcdev->hclk_disp_matrix);
 647         clk_enable(pcdev->vip_matrix);
 648 #endif
 649
 650         clk_enable(pcdev->vip_input);
 651         clk_enable(pcdev->vip_bus);
 652
 653     //if (icd->ops->query_bus_param)                                                  /* ddl@rock-chips.com : Query Sensor's xclk */
 654         //sensor_bus_flags = icd->ops->query_bus_param(icd);
 655
 656     if (sensor_bus_flags & SOCAM_MCLK_48MHZ) {
 657         parent = clk_get(NULL, "clk48m");
 658         if (!parent || IS_ERR(parent))
 659              goto RK29_CAMERA_ACTIVE_ERR;
 660     } else if (sensor_bus_flags & SOCAM_MCLK_27MHZ) {
 661         parent = clk_get(NULL, "extclk");
 662         if (!parent || IS_ERR(parent))
 663              goto RK29_CAMERA_ACTIVE_ERR;
 664     } else {
 665         parent = clk_get(NULL, "xin24m");
 666         if (!parent || IS_ERR(parent))
 667              goto RK29_CAMERA_ACTIVE_ERR;
 668     }
 669
 670     clk_set_parent(pcdev->vip_out, parent);
 671
 672     clk_enable(pcdev->vip_out);
 673     rk29_mux_api_set(GPIO1B4_VIPCLKOUT_NAME, GPIO1L_VIP_CLKOUT);
 674     ndelay(10);
 675
 676 #if (CONFIG_RK29_CAM_WORK_BUS==RK29_CAM_AHB)
 677         write_grf_reg(GRF_SOC_CON0_Reg, read_grf_reg(GRF_SOC_CON0_Reg)|VIP_AHBMASTER);  //VIP Config to AHB
 678         write_grf_reg(GRF_OS_REG0, read_grf_reg(GRF_OS_REG0)&(~VIP_ACLK_DIV_HCLK_2));   //aclk:hclk = 1:1
 679 #else
 680         write_grf_reg(GRF_SOC_CON0_Reg, read_grf_reg(GRF_SOC_CON0_Reg)&(~VIP_AHBMASTER));  //VIP Config to AXI
 681     write_grf_reg(GRF_OS_REG0, read_grf_reg(GRF_OS_REG0)|VIP_ACLK_DIV_HCLK_2);   //aclk:hclk = 2:1
 682 #endif
 683         ndelay(10);
 684
 685     write_vip_reg(RK29_VIP_RESET, 0x76543210);  /* ddl@rock-chips.com : vip software reset */
 686     udelay(10);
 687
 688     write_vip_reg(RK29_VIP_AHBR_CTRL, 0x07);   /* ddl@rock-chips.com : vip ahb burst 16 */
 689     write_vip_reg(RK29_VIP_INT_MASK, 0x01);    //capture complete interrupt enable
 690     write_vip_reg(RK29_VIP_CRM,  0x00000000);  //Y/CB/CR color modification
 691
 692     return 0;
 693 RK29_CAMERA_ACTIVE_ERR:
 694     return -ENODEV;
 695 }
 696
 697 static void rk29_camera_deactivate(struct rk29_camera_dev *pcdev)
 698 {
 699     //pcdev->active = NULL;
 700
 701     write_vip_reg(RK29_VIP_CTRL, 0);
 702     read_vip_reg(RK29_VIP_INT_STS);             //clear vip interrupte single
 703
 704     rk29_mux_api_set(GPIO1B4_VIPCLKOUT_NAME, GPIO1L_GPIO1B4);
 705     clk_disable(pcdev->vip_out);
 706
 707         clk_disable(pcdev->vip_input);
 708         clk_disable(pcdev->vip_bus);
 709
 710 #if (CONFIG_RK29_CAM_WORK_BUS==RK29_CAM_AHB)
 711         clk_disable(pcdev->hclk_disp_matrix);
 712         clk_disable(pcdev->vip_matrix);
 713 #endif
 714
 715         clk_disable(pcdev->hclk_cpu_display);
 716         clk_disable(pcdev->vip_slave);
 717
 718         clk_disable(pcdev->aclk_ddr_lcdc);
 719         clk_disable(pcdev->aclk_disp_matrix);
 720
 721         clk_disable(pcdev->pd_display);
 722     return;
 723 }
 724
 725 /* The following two functions absolutely depend on the fact, that
 726  * there can be only one camera on RK28 quick capture interface */
 727 static int rk29_camera_add_device(struct soc_camera_device *icd)
 728 {
 729     struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
 730     struct rk29_camera_dev *pcdev = ici->priv;
 731     struct device *control = to_soc_camera_control(icd);
 732     struct v4l2_subdev *sd;
 733     int ret;
 734
 735     mutex_lock(&camera_lock);
 736
 737     if (pcdev->icd) {
 738         ret = -EBUSY;
 739         goto ebusy;
 740     }
 741
 742     dev_info(&icd->dev, "RK29 Camera driver attached to camera%d(%s)\n",
 743              icd->devnum,dev_name(icd->pdev));
 744
 745         pcdev->frame_inval = RK29_CAM_FRAME_INVAL_INIT;
 746     pcdev->active = NULL;
 747     pcdev->icd = NULL;
 748         pcdev->reginfo_suspend.Inval = Reg_Invalidate;
 749         /* ddl@rock-chips.com: capture list must be reset, because this list may be not empty,
 750      * if app havn't dequeue all videobuf before close camera device;
 751         */
 752     INIT_LIST_HEAD(&pcdev->capture);
 753
 754     ret = rk29_camera_activate(pcdev,icd);
 755     if (ret)
 756         goto ebusy;
 757
 758     /* ddl@rock-chips.com : v4l2_subdev is not created when ici->ops->add called in soc_camera_probe  */
 759     if (control) {
 760         sd = dev_get_drvdata(control);
 761                 v4l2_subdev_call(sd, core, ioctl, RK29_CAM_SUBDEV_IOREQUEST,(void*)pcdev->pdata);
 762         ret = v4l2_subdev_call(sd,core, init, 0);
 763         if (ret)
 764             goto ebusy;
 765     }
 766
 767     pcdev->icd = icd;
 768
 769 ebusy:
 770     mutex_unlock(&camera_lock);
 771
 772     return ret;
 773 }
 774 static void rk29_camera_remove_device(struct soc_camera_device *icd)
 775 {
 776     struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
 777     struct rk29_camera_dev *pcdev = ici->priv;
 778         struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
 779
 780         mutex_lock(&camera_lock);
 781     BUG_ON(icd != pcdev->icd);
 782
 783     dev_info(&icd->dev, "RK29 Camera driver detached from camera%d(%s)\n",
 784              icd->devnum,dev_name(icd->pdev));
 785
 786         /* ddl@rock-chips.com: Application will call VIDIOC_STREAMOFF before close device, but
 787            stream may be turn on again before close device, if suspend and resume happened. */
 788         if (read_vip_reg(RK29_VIP_CTRL) & ENABLE_CAPTURE) {
 789                 rk29_camera_s_stream(icd,0);
 790         }
 791
 792     v4l2_subdev_call(sd, core, ioctl, RK29_CAM_SUBDEV_DEACTIVATE,NULL);
 793         rk29_camera_deactivate(pcdev);
 794
 795         /* ddl@rock-chips.com: Call videobuf_mmap_free here for free the struct video_buffer which malloc in videobuf_alloc */
 796         #if 0
 797         if (pcdev->vb_vidq_ptr) {
 798                 videobuf_mmap_free(pcdev->vb_vidq_ptr);
 799                 pcdev->vb_vidq_ptr = NULL;
 800         }
 801         #else
 802         pcdev->vb_vidq_ptr = NULL;
 803         #endif
 804
 805         if (pcdev->camera_work) {
 806                 kfree(pcdev->camera_work);
 807                 pcdev->camera_work = NULL;
 808                 pcdev->camera_work_count = 0;
 809         }
 810
 811         pcdev->active = NULL;
 812     pcdev->icd = NULL;
 813         pcdev->reginfo_suspend.Inval = Reg_Invalidate;
 814         /* ddl@rock-chips.com: capture list must be reset, because this list may be not empty,
 815      * if app havn't dequeue all videobuf before close camera device;
 816         */
 817     INIT_LIST_HEAD(&pcdev->capture);
 818
 819         mutex_unlock(&camera_lock);
 820         RK29CAMERA_DG("%s exit\n",__FUNCTION__);
 821
 822         return;
 823 }
 824
 825 static int rk29_camera_set_bus_param(struct soc_camera_device *icd, __u32 pixfmt)
 826 {
 827     unsigned long bus_flags, camera_flags, common_flags;
 828     unsigned int vip_ctrl_val = 0;
 829     int ret = 0;
 830
 831     RK29CAMERA_DG("%s..%d..\n",__FUNCTION__,__LINE__);
 832
 833     bus_flags = RK29_CAM_BUS_PARAM;
 834         if (icd->ops->query_bus_param)
 835         camera_flags = icd->ops->query_bus_param(icd);
 836         else
 837                 camera_flags = 0;
 838
 839     common_flags = soc_camera_bus_param_compatible(camera_flags, bus_flags);
 840     if (!common_flags) {
 841         ret = -EINVAL;
 842         goto RK29_CAMERA_SET_BUS_PARAM_END;
 843     }
 844
 845     ret = icd->ops->set_bus_param(icd, common_flags);
 846     if (ret < 0)
 847         goto RK29_CAMERA_SET_BUS_PARAM_END;
 848
 849         if (common_flags & SOCAM_DATAWIDTH_8) {
 850         icd->buswidth = 8;
 851         } else if (common_flags & SOCAM_DATAWIDTH_10) {
 852             icd->buswidth = 10;
 853         }
 854
 855     vip_ctrl_val = read_vip_reg(RK29_VIP_CTRL);
 856     if (common_flags & SOCAM_PCLK_SAMPLE_FALLING) {
 857         vip_ctrl_val |= NEGATIVE_EDGE;
 858     } else {
 859                 vip_ctrl_val &= ~NEGATIVE_EDGE;
 860     }
 861     if (common_flags & SOCAM_HSYNC_ACTIVE_LOW) {
 862         vip_ctrl_val |= HSY_LOW_ACTIVE;
 863     } else {
 864                 vip_ctrl_val &= ~HSY_LOW_ACTIVE;
 865     }
 866     if (common_flags & SOCAM_VSYNC_ACTIVE_HIGH) {
 867         vip_ctrl_val |= VSY_HIGH_ACTIVE;
 868     } else {
 869                 vip_ctrl_val &= ~VSY_HIGH_ACTIVE;
 870     }
 871
 872     /* ddl@rock-chips.com : Don't enable capture here, enable in stream_on */
 873     //vip_ctrl_val |= ENABLE_CAPTURE;
 874
 875     write_vip_reg(RK29_VIP_CTRL, vip_ctrl_val);
 876     RK29CAMERA_DG("%s..ctrl:0x%x CtrReg=%x AXI_AHB:0x%x aclk_hclk:0x%x \n",__FUNCTION__,vip_ctrl_val,read_vip_reg(RK29_VIP_CTRL),
 877                 read_grf_reg(GRF_SOC_CON0_Reg)&VIP_AHBMASTER, read_grf_reg(GRF_OS_REG0)&VIP_ACLK_DIV_HCLK_2);
 878
 879 RK29_CAMERA_SET_BUS_PARAM_END:
 880         if (ret)
 881         RK29CAMERA_TR("\n%s..%d.. ret = %d \n",__FUNCTION__,__LINE__, ret);
 882     return ret;
 883 }
 884
 885 static int rk29_camera_try_bus_param(struct soc_camera_device *icd, __u32 pixfmt)
 886 {
 887     unsigned long bus_flags, camera_flags;
 888     int ret;
 889
 890     bus_flags = RK29_CAM_BUS_PARAM;
 891         if (icd->ops->query_bus_param) {
 892         camera_flags = icd->ops->query_bus_param(icd);
 893         } else {
 894                 camera_flags = 0;
 895         }
 896     ret = soc_camera_bus_param_compatible(camera_flags, bus_flags) ;
 897
 898     if (ret < 0)
 899         dev_warn(icd->dev.parent,
 900                          "Flags incompatible: camera %lx, host %lx\n",
 901                          camera_flags, bus_flags);
 902     return ret;
 903 }
 904 static const struct soc_camera_data_format rk29_camera_formats[] = {
 905         {
 906                 .name           = "Planar YUV420 12 bit",
 907                 .depth          = 12,
 908                 .fourcc         = V4L2_PIX_FMT_YUV420,
 909                 .colorspace     = V4L2_COLORSPACE_JPEG,
 910         },{
 911                 .name           = "Planar YUV422 16 bit",
 912                 .depth          = 16,
 913                 .fourcc         = V4L2_PIX_FMT_YUV422P,
 914                 .colorspace     = V4L2_COLORSPACE_JPEG,
 915         },{
 916                 .name           = "Raw Bayer RGB 10 bit",
 917                 .depth          = 16,
 918                 .fourcc         = V4L2_PIX_FMT_SGRBG10,
 919                 .colorspace     = V4L2_COLORSPACE_SRGB,
 920         }
 921 };
 922
 923 static void rk29_camera_setup_format(struct soc_camera_device *icd, __u32 host_pixfmt, __u32 cam_pixfmt, struct v4l2_rect *rect)
 924 {
 925         struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
 926     struct rk29_camera_dev *pcdev = ici->priv;
 927     unsigned int vip_fs = 0,vip_crop = 0;
 928     unsigned int vip_ctrl_val = VIP_SENSOR|ONEFRAME|DISABLE_CAPTURE;
 929
 930     switch (host_pixfmt)
 931     {
 932         case V4L2_PIX_FMT_YUV422P:
 933             vip_ctrl_val |= VIPREGYUV422;
 934                         pcdev->frame_inval = RK29_CAM_FRAME_INVAL_DC;
 935                         pcdev->pixfmt = host_pixfmt;
 936             break;
 937         case V4L2_PIX_FMT_YUV420:
 938             vip_ctrl_val |= VIPREGYUV420;
 939                         if (pcdev->frame_inval != RK29_CAM_FRAME_INVAL_INIT)
 940                                 pcdev->frame_inval = RK29_CAM_FRAME_INVAL_INIT;
 941                         pcdev->pixfmt = host_pixfmt;
 942             break;
 943                 case V4L2_PIX_FMT_SGRBG10:
 944                         vip_ctrl_val |= (VIP_RAW | VIP_SENSOR | VIP_DATA_LITTLEEND);
 945                         pcdev->frame_inval = RK29_CAM_FRAME_INVAL_DC;
 946                         pcdev->pixfmt = host_pixfmt;
 947                         break;
 948         default:                                                                                /* ddl@rock-chips.com : vip output format is hold when pixfmt is invalidate */
 949             vip_ctrl_val |= (read_vip_reg(RK29_VIP_CTRL) & VIPREGYUV422);
 950             break;
 951     }
 952
 953     switch (cam_pixfmt)
 954     {
 955         case V4L2_PIX_FMT_UYVY:
 956             vip_ctrl_val |= SENSOR_UYVY;
 957             break;
 958         case V4L2_PIX_FMT_YUYV:
 959             vip_ctrl_val |= SENSOR_YUYV;
 960             break;
 961         default :
 962             vip_ctrl_val |= (read_vip_reg(RK29_VIP_CTRL) & SENSOR_YUYV);
 963             break;
 964     }
 965
 966     write_vip_reg(RK29_VIP_CTRL, vip_ctrl_val);         /* ddl@rock-chips.com: VIP capture mode and capture format must be set before FS register set */
 967
 968     read_vip_reg(RK29_VIP_INT_STS);                     /* clear vip interrupte single  */
 969
 970     if (vip_ctrl_val & ONEFRAME)  {
 971         vip_crop = ((rect->left<<16) + rect->top);
 972         vip_fs  = (((rect->width + rect->left)<<16) + (rect->height+rect->top));
 973     } else if (vip_ctrl_val & PING_PONG) {
 974         BUG();
 975     }
 976
 977     write_vip_reg(RK29_VIP_CROP, vip_crop);
 978     write_vip_reg(RK29_VIP_FS, vip_fs);
 979
 980     write_vip_reg(RK29_VIP_FB_SR,  0x00000003);
 981
 982         pcdev->host_width = rect->width;
 983         pcdev->host_height = rect->height;
 984
 985     RK29CAMERA_DG("%s.. crop:0x%x fs:0x%x ctrl:0x%x CtrlReg:0x%x\n",__FUNCTION__,vip_crop,vip_fs,vip_ctrl_val,read_vip_reg(RK29_VIP_CTRL));
 986         return;
 987 }
 988
 989 static int rk29_camera_get_formats(struct soc_camera_device *icd, int idx,
 990                                   struct soc_camera_format_xlate *xlate)
 991 {
 992     struct device *dev = icd->dev.parent;
 993     int formats = 0, buswidth, ret;
 994
 995     buswidth = 8;
 996
 997     ret = rk29_camera_try_bus_param(icd, buswidth);
 998     if (ret < 0)
 999         return 0;
1000
1001     switch (icd->formats[idx].fourcc) {
1002         case V4L2_PIX_FMT_UYVY:
1003         case V4L2_PIX_FMT_YUYV:
1004             formats++;
1005             if (xlate) {
1006                 xlate->host_fmt = &rk29_camera_formats[0];
1007                 xlate->cam_fmt = icd->formats + idx;
1008                 xlate->buswidth = buswidth;
1009                 xlate++;
1010                 dev_dbg(dev, "Providing format %s using %s\n",
1011                         rk29_camera_formats[0].name,
1012                         icd->formats[idx].name);
1013             }
1014
1015             formats++;
1016             if (xlate) {
1017                 xlate->host_fmt = &rk29_camera_formats[1];
1018                 xlate->cam_fmt = icd->formats + idx;
1019                 xlate->buswidth = buswidth;
1020                 xlate++;
1021                 dev_dbg(dev, "Providing format %s using %s\n",
1022                         rk29_camera_formats[1].name,
1023                         icd->formats[idx].name);
1024             }
1025                         break;
1026                 case V4L2_PIX_FMT_SGRBG10:
1027                         formats++;
1028             if (xlate) {
1029                 xlate->host_fmt = &rk29_camera_formats[2];
1030                 xlate->cam_fmt = icd->formats + idx;
1031                 xlate->buswidth = 10;
1032                 xlate++;
1033                 dev_dbg(dev, "Providing format %s using %s\n",
1034                         rk29_camera_formats[2].name,
1035                         icd->formats[idx].name);
1036             }
1037                         break;
1038         default:
1039             break;
1040     }
1041
1042     return formats;
1043 }
1044
1045 static void rk29_camera_put_formats(struct soc_camera_device *icd)
1046 {
1047         return;
1048 }
1049
1050 static int rk29_camera_set_crop(struct soc_camera_device *icd,
1051                                struct v4l2_crop *a)
1052 {
1053     struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
1054     struct v4l2_format f;
1055     struct v4l2_pix_format *pix = &f.fmt.pix;
1056     int ret;
1057
1058     f.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1059
1060     ret = v4l2_subdev_call(sd, video, g_fmt, &f);
1061     if (ret < 0)
1062         return ret;
1063
1064     if ((pix->width < (a->c.left + a->c.width)) || (pix->height < (a->c.top + a->c.height)))  {
1065
1066         pix->width = a->c.left + a->c.width;
1067         pix->height = a->c.top + a->c.height;
1068
1069         v4l_bound_align_image(&pix->width, RK29_CAM_W_MIN, RK29_CAM_W_MAX, 1,
1070             &pix->height, RK29_CAM_H_MIN, RK29_CAM_H_MAX, 0,
1071             icd->current_fmt->fourcc == V4L2_PIX_FMT_YUV422P ?4 : 0);
1072
1073         ret = v4l2_subdev_call(sd, video, s_fmt, &f);
1074         if (ret < 0)
1075             return ret;
1076     }
1077
1078     rk29_camera_setup_format(icd, icd->current_fmt->fourcc, pix->pixelformat, &a->c);
1079
1080     icd->user_width = pix->width;
1081     icd->user_height = pix->height;
1082
1083     return 0;
1084 }
1085
1086 static int rk29_camera_set_fmt(struct soc_camera_device *icd,
1087                               struct v4l2_format *f)
1088 {
1089     struct device *dev = icd->dev.parent;
1090     struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
1091     const struct soc_camera_data_format *cam_fmt = NULL;
1092     const struct soc_camera_format_xlate *xlate = NULL;
1093         struct soc_camera_host *ici =to_soc_camera_host(icd->dev.parent);
1094     struct rk29_camera_dev *pcdev = ici->priv;
1095     struct v4l2_pix_format *pix = &f->fmt.pix;
1096     struct v4l2_format cam_f = *f;
1097     struct v4l2_rect rect;
1098     int ret,usr_w,usr_h;
1099
1100         usr_w = pix->width;
1101         usr_h = pix->height;
1102     RK29CAMERA_DG("%s enter width:%d  height:%d\n",__FUNCTION__,usr_w,usr_h);
1103
1104     xlate = soc_camera_xlate_by_fourcc(icd, pix->pixelformat);
1105     if (!xlate) {
1106         dev_err(dev, "Format %x not found\n", pix->pixelformat);
1107         ret = -EINVAL;
1108         goto RK29_CAMERA_SET_FMT_END;
1109     }
1110
1111     cam_fmt = xlate->cam_fmt;
1112
1113     cam_f.fmt.pix.pixelformat = cam_fmt->fourcc;
1114     ret = v4l2_subdev_call(sd, video, s_fmt, &cam_f);
1115     cam_f.fmt.pix.pixelformat = pix->pixelformat;
1116     *pix = cam_f.fmt.pix;
1117         #ifdef CONFIG_VIDEO_RK29_WORK_IPP
1118         if ((pix->width != usr_w) || (pix->height != usr_h)) {
1119                 pix->width = usr_w;
1120                 pix->height = usr_h;
1121         }
1122         #endif
1123     icd->sense = NULL;
1124
1125     if (!ret) {
1126         rect.left = 0;
1127         rect.top = 0;
1128         rect.width = cam_f.fmt.pix.width;
1129         rect.height = cam_f.fmt.pix.height;
1130
1131         RK29CAMERA_DG("%s..%s..%s icd width:%d  host width:%d \n",__FUNCTION__,xlate->host_fmt->name, cam_fmt->name,
1132                                    rect.width, pix->width);
1133         rk29_camera_setup_format(icd, pix->pixelformat, cam_fmt->fourcc, &rect);
1134         icd->buswidth = xlate->buswidth;
1135         icd->current_fmt = xlate->host_fmt;
1136
1137                 if (((pcdev->host_width != pcdev->icd->user_width) || (pcdev->host_height != pcdev->icd->user_height))) {
1138                         BUG_ON(pcdev->vipmem_phybase == 0);
1139                 }
1140     }
1141
1142 RK29_CAMERA_SET_FMT_END:
1143         if (ret)
1144         RK29CAMERA_TR("\n%s..%d.. ret = %d  \n",__FUNCTION__,__LINE__, ret);
1145     return ret;
1146 }
1147 static bool rk29_camera_fmt_capturechk(struct v4l2_format *f)
1148 {
1149     bool ret = false;
1150
1151         if ((f->fmt.pix.width == 1024) && (f->fmt.pix.height == 768)) {
1152                 ret = true;
1153         } else if ((f->fmt.pix.width == 1280) && (f->fmt.pix.height == 1024)) {
1154                 ret = true;
1155         } else if ((f->fmt.pix.width == 1600) && (f->fmt.pix.height == 1200)) {
1156                 ret = true;
1157         } else if ((f->fmt.pix.width == 2048) && (f->fmt.pix.height == 1536)) {
1158                 ret = true;
1159         } else if ((f->fmt.pix.width == 2592) && (f->fmt.pix.height == 1944)) {
1160                 ret = true;
1161         }
1162
1163         if (ret == true)
1164                 RK29CAMERA_DG("%s %dx%d is capture format\n", __FUNCTION__, f->fmt.pix.width, f->fmt.pix.height);
1165         return ret;
1166 }
1167 static int rk29_camera_try_fmt(struct soc_camera_device *icd,
1168                                    struct v4l2_format *f)
1169 {
1170     struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
1171         struct rk29_camera_dev *pcdev = ici->priv;
1172     struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
1173     const struct soc_camera_format_xlate *xlate;
1174     struct v4l2_pix_format *pix = &f->fmt.pix;
1175     __u32 pixfmt = pix->pixelformat;
1176     enum v4l2_field field;
1177     int ret,usr_w,usr_h;
1178         bool is_capture = rk29_camera_fmt_capturechk(f);
1179         bool vipmem_is_overflow = false;
1180
1181         usr_w = pix->width;
1182         usr_h = pix->height;
1183         RK29CAMERA_DG("%s enter width:%d  height:%d\n",__FUNCTION__,usr_w,usr_h);
1184
1185     xlate = soc_camera_xlate_by_fourcc(icd, pixfmt);
1186     if (!xlate) {
1187         dev_err(ici->v4l2_dev.dev, "Format %x not found\n", pixfmt);
1188         ret = -EINVAL;
1189         goto RK29_CAMERA_TRY_FMT_END;
1190     }
1191    /* limit to rk29 hardware capabilities */
1192     v4l_bound_align_image(&pix->width, RK29_CAM_W_MIN, RK29_CAM_W_MAX, 1,
1193               &pix->height, RK29_CAM_H_MIN, RK29_CAM_H_MAX, 0,
1194               pixfmt == V4L2_PIX_FMT_YUV422P ? 4 : 0);
1195
1196     pix->bytesperline = pix->width * DIV_ROUND_UP(xlate->host_fmt->depth, 8);
1197     pix->sizeimage = pix->height * pix->bytesperline;
1198
1199     /* camera has to see its format, but the user the original one */
1200     pix->pixelformat = xlate->cam_fmt->fourcc;
1201     /* limit to sensor capabilities */
1202     ret = v4l2_subdev_call(sd, video, try_fmt, f);
1203     pix->pixelformat = pixfmt;
1204         #ifdef CONFIG_VIDEO_RK29_WORK_IPP
1205         if ((pix->width > usr_w) && (pix->height > usr_h)) {
1206                 if (is_capture) {
1207                         vipmem_is_overflow = (PAGE_ALIGN((pix->width*pix->height*icd->current_fmt->depth+7)>>3) > pcdev->vipmem_size);
1208                 } else {
1209                         /* Assume preview buffer minimum is 4 */
1210                         vipmem_is_overflow = (PAGE_ALIGN((pix->width*pix->height*icd->current_fmt->depth+7)>>3)*4 > pcdev->vipmem_size);
1211                 }
1212                 if (vipmem_is_overflow == false) {
1213                         pix->width = usr_w;
1214                         pix->height = usr_h;
1215                 } else {
1216                         RK29CAMERA_TR("vipmem for IPP is overflow, This resolution(%dx%d -> %dx%d) is invalidate!\n",pix->width,pix->height,usr_w,usr_h);
1217                 }
1218         } else if ((pix->width < usr_w) && (pix->height < usr_h)) {
1219                 if (((usr_w>>1) < pix->width) && ((usr_h>>1) < pix->height)) {
1220                         if (is_capture) {
1221                                 vipmem_is_overflow = (PAGE_ALIGN((pix->width*pix->height*icd->current_fmt->depth+7)>>3) > pcdev->vipmem_size);
1222                         } else {
1223                                 vipmem_is_overflow = (PAGE_ALIGN((pix->width*pix->height*icd->current_fmt->depth+7)>>3)*4 > pcdev->vipmem_size);
1224                         }
1225                         if (vipmem_is_overflow == false) {
1226                                 pix->width = usr_w;
1227                                 pix->height = usr_h;
1228                         } else {
1229                                 RK29CAMERA_TR("vipmem for IPP is overflow, This resolution(%dx%d -> %dx%d) is invalidate!\n",pix->width,pix->height,usr_w,usr_h);
1230                         }
1231                 } else {
1232                         RK29CAMERA_TR("The aspect ratio(%dx%d/%dx%d) is bigger than 2 !\n",pix->width,pix->height,usr_w,usr_h);
1233                 }
1234         }
1235         #endif
1236
1237     field = pix->field;
1238
1239     if (field == V4L2_FIELD_ANY) {
1240         pix->field = V4L2_FIELD_NONE;
1241     } else if (field != V4L2_FIELD_NONE) {
1242         dev_err(icd->dev.parent, "Field type %d unsupported.\n", field);
1243         ret = -EINVAL;
1244         goto RK29_CAMERA_TRY_FMT_END;
1245     }
1246
1247 RK29_CAMERA_TRY_FMT_END:
1248         if (ret)
1249         RK29CAMERA_TR("\n%s..%d.. ret = %d  \n",__FUNCTION__,__LINE__, ret);
1250     return ret;
1251 }
1252
1253 static int rk29_camera_reqbufs(struct soc_camera_file *icf,
1254                                struct v4l2_requestbuffers *p)
1255 {
1256     int i;
1257
1258     /* This is for locking debugging only. I removed spinlocks and now I
1259      * check whether .prepare is ever called on a linked buffer, or whether
1260      * a dma IRQ can occur for an in-work or unlinked buffer. Until now
1261      * it hadn't triggered */
1262     for (i = 0; i < p->count; i++) {
1263         struct rk29_buffer *buf = container_of(icf->vb_vidq.bufs[i],
1264                                                            struct rk29_buffer, vb);
1265         buf->inwork = 0;
1266         INIT_LIST_HEAD(&buf->vb.queue);
1267     }
1268
1269     return 0;
1270 }
1271
1272 static unsigned int rk29_camera_poll(struct file *file, poll_table *pt)
1273 {
1274     struct soc_camera_file *icf = file->private_data;
1275     struct rk29_buffer *buf;
1276
1277     buf = list_entry(icf->vb_vidq.stream.next, struct rk29_buffer,
1278                      vb.stream);
1279
1280     poll_wait(file, &buf->vb.done, pt);
1281
1282     if (buf->vb.state == VIDEOBUF_DONE ||
1283             buf->vb.state == VIDEOBUF_ERROR)
1284         return POLLIN|POLLRDNORM;
1285
1286     return 0;
1287 }
1288
1289 static int rk29_camera_querycap(struct soc_camera_host *ici,
1290                                 struct v4l2_capability *cap)
1291 {
1292     /* cap->name is set by the firendly caller:-> */
1293     strlcpy(cap->card, rk29_cam_driver_description, sizeof(cap->card));
1294     cap->version = RK29_CAM_VERSION_CODE;
1295     cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING;
1296
1297     return 0;
1298 }
1299
1300 static int rk29_camera_suspend(struct soc_camera_device *icd, pm_message_t state)
1301 {
1302     struct soc_camera_host *ici =
1303                     to_soc_camera_host(icd->dev.parent);
1304     struct rk29_camera_dev *pcdev = ici->priv;
1305         struct v4l2_subdev *sd;
1306     int ret = 0,tmp;
1307
1308         mutex_lock(&camera_lock);
1309         if ((pcdev->icd == icd) && (icd->ops->suspend)) {
1310                 rk29_camera_s_stream(icd, 0);
1311                 sd = soc_camera_to_subdev(icd);
1312                 v4l2_subdev_call(sd, video, s_stream, 0);
1313                 ret = icd->ops->suspend(icd, state);
1314
1315                 pcdev->reginfo_suspend.VipCtrl = read_vip_reg(RK29_VIP_CTRL);
1316                 pcdev->reginfo_suspend.VipCrop = read_vip_reg(RK29_VIP_CROP);
1317                 pcdev->reginfo_suspend.VipFs = read_vip_reg(RK29_VIP_FS);
1318                 pcdev->reginfo_suspend.VipIntMsk = read_vip_reg(RK29_VIP_INT_MASK);
1319                 pcdev->reginfo_suspend.VipCrm = read_vip_reg(RK29_VIP_CRM);
1320
1321                 tmp = pcdev->reginfo_suspend.VipFs>>16;         /* ddl@rock-chips.com */
1322                 tmp += pcdev->reginfo_suspend.VipCrop>>16;
1323                 pcdev->reginfo_suspend.VipFs = (pcdev->reginfo_suspend.VipFs & 0xffff) | (tmp<<16);
1324
1325                 pcdev->reginfo_suspend.Inval = Reg_Validate;
1326                 rk29_camera_deactivate(pcdev);
1327
1328                 RK29CAMERA_DG("%s Enter Success...\n", __FUNCTION__);
1329         } else {
1330                 RK29CAMERA_DG("%s icd has been deattach, don't need enter suspend\n", __FUNCTION__);
1331         }
1332         mutex_unlock(&camera_lock);
1333     return ret;
1334 }
1335
1336 static int rk29_camera_resume(struct soc_camera_device *icd)
1337 {
1338     struct soc_camera_host *ici =
1339                     to_soc_camera_host(icd->dev.parent);
1340     struct rk29_camera_dev *pcdev = ici->priv;
1341         struct v4l2_subdev *sd;
1342     int ret = 0;
1343
1344         mutex_lock(&camera_lock);
1345         if ((pcdev->icd == icd) && (icd->ops->resume)) {
1346                 if (pcdev->reginfo_suspend.Inval == Reg_Validate) {
1347                         rk29_camera_activate(pcdev, icd);
1348                         write_vip_reg(RK29_VIP_INT_MASK, pcdev->reginfo_suspend.VipIntMsk);
1349                         write_vip_reg(RK29_VIP_CRM, pcdev->reginfo_suspend.VipCrm);
1350                         write_vip_reg(RK29_VIP_CTRL, pcdev->reginfo_suspend.VipCtrl&~ENABLE_CAPTURE);
1351                         write_vip_reg(RK29_VIP_CROP, pcdev->reginfo_suspend.VipCrop);
1352                         write_vip_reg(RK29_VIP_FS, pcdev->reginfo_suspend.VipFs);
1353
1354                         rk29_videobuf_capture(pcdev->active);
1355                         rk29_camera_s_stream(icd, 1);
1356                         pcdev->reginfo_suspend.Inval = Reg_Invalidate;
1357                 } else {
1358                         RK29CAMERA_TR("Resume fail, vip register recored is invalidate!!\n");
1359                         goto rk29_camera_resume_end;
1360                 }
1361
1362                 ret = icd->ops->resume(icd);
1363                 sd = soc_camera_to_subdev(icd);
1364                 v4l2_subdev_call(sd, video, s_stream, 1);
1365
1366                 RK29CAMERA_DG("%s Enter success\n",__FUNCTION__);
1367         } else {
1368                 RK29CAMERA_DG("%s icd has been deattach, don't need enter resume\n", __FUNCTION__);
1369         }
1370
1371 rk29_camera_resume_end:
1372         mutex_unlock(&camera_lock);
1373     return ret;
1374 }
1375
1376 static void rk29_camera_reinit_work(struct work_struct *work)
1377 {
1378         struct device *control;
1379     struct v4l2_subdev *sd;
1380         struct v4l2_format cam_f;
1381         const struct soc_camera_format_xlate *xlate;
1382         int ret;
1383
1384         write_vip_reg(RK29_VIP_CTRL, (read_vip_reg(RK29_VIP_CTRL)&(~ENABLE_CAPTURE)));
1385
1386         control = to_soc_camera_control(rk29_camdev_info_ptr->icd);
1387         sd = dev_get_drvdata(control);
1388         ret = v4l2_subdev_call(sd,core, init, 1);
1389
1390         cam_f.fmt.pix.width = rk29_camdev_info_ptr->icd->user_width;
1391         cam_f.fmt.pix.height = rk29_camdev_info_ptr->icd->user_height;
1392         xlate = soc_camera_xlate_by_fourcc(rk29_camdev_info_ptr->icd, rk29_camdev_info_ptr->icd->current_fmt->fourcc);
1393         cam_f.fmt.pix.pixelformat = xlate->cam_fmt->fourcc;
1394         ret |= v4l2_subdev_call(sd, video, s_fmt, &cam_f);
1395
1396         write_vip_reg(RK29_VIP_CTRL, (read_vip_reg(RK29_VIP_CTRL)|ENABLE_CAPTURE));
1397
1398         RK29CAMERA_TR("Camera host haven't recevie data from sensor,Reinit sensor now! ret:0x%x\n",ret);
1399 }
1400 static enum hrtimer_restart rk29_camera_fps_func(struct hrtimer *timer)
1401 {
1402         RK29CAMERA_DG("rk29_camera_fps_func fps:0x%x\n",rk29_camdev_info_ptr->fps);
1403         if (rk29_camdev_info_ptr->fps < 3) {
1404                 RK29CAMERA_TR("Camera host haven't recevie data from sensor,Reinit sensor delay!\n");
1405                 INIT_WORK(&rk29_camdev_info_ptr->camera_reinit_work, rk29_camera_reinit_work);
1406                 queue_work(rk29_camdev_info_ptr->camera_wq,&(rk29_camdev_info_ptr->camera_reinit_work));
1407         }
1408
1409         return HRTIMER_NORESTART;
1410 }
1411 static int rk29_camera_s_stream(struct soc_camera_device *icd, int enable)
1412 {
1413         struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
1414     struct rk29_camera_dev *pcdev = ici->priv;
1415     int vip_ctrl_val;
1416         int ret;
1417
1418         WARN_ON(pcdev->icd != icd);
1419
1420         vip_ctrl_val = read_vip_reg(RK29_VIP_CTRL);
1421         if (enable) {
1422                 pcdev->fps = 0;
1423                 hrtimer_cancel(&pcdev->fps_timer);
1424                 hrtimer_start(&pcdev->fps_timer,ktime_set(2, 0),HRTIMER_MODE_REL);
1425                 vip_ctrl_val |= ENABLE_CAPTURE;
1426         } else {
1427         vip_ctrl_val &= ~ENABLE_CAPTURE;
1428                 ret = hrtimer_cancel(&pcdev->fps_timer);
1429                 ret |= flush_work(&rk29_camdev_info_ptr->camera_reinit_work);
1430                 RK29CAMERA_DG("STREAM_OFF cancel timer and flush work:0x%x \n", ret);
1431         }
1432         write_vip_reg(RK29_VIP_CTRL, vip_ctrl_val);
1433
1434         RK29CAMERA_DG("%s.. enable : 0x%x \n", __FUNCTION__, enable);
1435         return 0;
1436 }
1437
1438 static struct soc_camera_host_ops rk29_soc_camera_host_ops =
1439 {
1440     .owner              = THIS_MODULE,
1441     .add                = rk29_camera_add_device,
1442     .remove             = rk29_camera_remove_device,
1443     .suspend    = rk29_camera_suspend,
1444     .resume             = rk29_camera_resume,
1445     .set_crop   = rk29_camera_set_crop,
1446     .get_formats        = rk29_camera_get_formats,
1447     .put_formats        = rk29_camera_put_formats,
1448     .set_fmt    = rk29_camera_set_fmt,
1449     .try_fmt    = rk29_camera_try_fmt,
1450     .init_videobuf      = rk29_camera_init_videobuf,
1451     .reqbufs    = rk29_camera_reqbufs,
1452     .poll               = rk29_camera_poll,
1453     .querycap   = rk29_camera_querycap,
1454     .set_bus_param      = rk29_camera_set_bus_param,
1455     .s_stream = rk29_camera_s_stream   /* ddl@rock-chips.com : Add stream control for host */
1456 };
1457 static int rk29_camera_probe(struct platform_device *pdev)
1458 {
1459     struct rk29_camera_dev *pcdev;
1460     struct resource *res;
1461     int irq;
1462     int err = 0;
1463
1464     RK29CAMERA_DG("%s..%s..%d  \n",__FUNCTION__,__FILE__,__LINE__);
1465     res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
1466     irq = platform_get_irq(pdev, 0);
1467     if (!res || irq < 0) {
1468         err = -ENODEV;
1469         goto exit;
1470     }
1471
1472     pcdev = kzalloc(sizeof(*pcdev), GFP_KERNEL);
1473     if (!pcdev) {
1474         dev_err(&pdev->dev, "Could not allocate pcdev\n");
1475         err = -ENOMEM;
1476         goto exit_alloc;
1477     }
1478     rk29_camdev_info_ptr = pcdev;
1479
1480     /*config output clk*/
1481         pcdev->aclk_ddr_lcdc = clk_get(&pdev->dev, "aclk_ddr_lcdc");
1482         pcdev->aclk_disp_matrix = clk_get(&pdev->dev, "aclk_disp_matrix");
1483
1484         pcdev->hclk_cpu_display = clk_get(&pdev->dev, "hclk_cpu_display");
1485         pcdev->vip_slave = clk_get(&pdev->dev, "vip_slave");
1486         pcdev->vip_out = clk_get(&pdev->dev,"vip_out");
1487         pcdev->vip_input = clk_get(&pdev->dev,"vip_input");
1488         pcdev->vip_bus = clk_get(&pdev->dev, "vip_bus");
1489
1490         pcdev->hclk_disp_matrix = clk_get(&pdev->dev,"hclk_disp_matrix");
1491         pcdev->vip_matrix = clk_get(&pdev->dev,"vip_matrix");
1492
1493         pcdev->pd_display = clk_get(&pdev->dev,"pd_display");
1494
1495     if (!pcdev->aclk_ddr_lcdc || !pcdev->aclk_disp_matrix ||  !pcdev->hclk_cpu_display ||
1496                 !pcdev->vip_slave || !pcdev->vip_out || !pcdev->vip_input || !pcdev->vip_bus || !pcdev->pd_display ||
1497                 IS_ERR(pcdev->aclk_ddr_lcdc) || IS_ERR(pcdev->aclk_disp_matrix) ||  IS_ERR(pcdev->hclk_cpu_display) || IS_ERR(pcdev->pd_display) ||
1498                 IS_ERR(pcdev->vip_slave) || IS_ERR(pcdev->vip_out) || IS_ERR(pcdev->vip_input) || IS_ERR(pcdev->vip_bus))  {
1499
1500         RK29CAMERA_TR(KERN_ERR "failed to get vip_clk(axi) source\n");
1501         err = -ENOENT;
1502         goto exit_reqmem;
1503     }
1504
1505         if (!pcdev->hclk_disp_matrix || !pcdev->vip_matrix ||
1506                 IS_ERR(pcdev->hclk_disp_matrix) || IS_ERR(pcdev->vip_matrix))  {
1507
1508         RK29CAMERA_TR(KERN_ERR "failed to get vip_clk(ahb) source\n");
1509         err = -ENOENT;
1510         goto exit_reqmem;
1511     }
1512
1513     dev_set_drvdata(&pdev->dev, pcdev);
1514     pcdev->res = res;
1515
1516     pcdev->pdata = pdev->dev.platform_data;             /* ddl@rock-chips.com : Request IO in init function */
1517     if (pcdev->pdata && pcdev->pdata->io_init) {
1518         pcdev->pdata->io_init();
1519     }
1520         #ifdef CONFIG_VIDEO_RK29_WORK_IPP
1521         if (pcdev->pdata && (strcmp(pcdev->pdata->meminfo.name,"camera_ipp_mem")==0)) {
1522                 pcdev->vipmem_phybase = pcdev->pdata->meminfo.start;
1523                 pcdev->vipmem_size = pcdev->pdata->meminfo.size;
1524                 RK29CAMERA_DG("\n%s Memory(start:0x%x size:0x%x) for IPP obtain \n",__FUNCTION__, pcdev->pdata->meminfo.start,pcdev->pdata->meminfo.size);
1525         } else {
1526                 RK29CAMERA_TR("\n%s Memory for IPP have not obtain! IPP Function is fail\n",__FUNCTION__);
1527                 pcdev->vipmem_phybase = 0;
1528                 pcdev->vipmem_size = 0;
1529         }
1530         #endif
1531     INIT_LIST_HEAD(&pcdev->capture);
1532     spin_lock_init(&pcdev->lock);
1533
1534     /*
1535      * Request the regions.
1536      */
1537     if (!request_mem_region(res->start, res->end - res->start + 1,
1538                             RK29_CAM_DRV_NAME)) {
1539         err = -EBUSY;
1540         goto exit_reqmem;
1541     }
1542
1543     pcdev->base = ioremap(res->start, res->end - res->start + 1);
1544     if (pcdev->base == NULL) {
1545         dev_err(pcdev->dev, "ioremap() of registers failed\n");
1546         err = -ENXIO;
1547         goto exit_ioremap;
1548     }
1549
1550     pcdev->irq = irq;
1551     pcdev->dev = &pdev->dev;
1552
1553     /* config buffer address */
1554     /* request irq */
1555     err = request_irq(pcdev->irq, rk29_camera_irq, 0, RK29_CAM_DRV_NAME,
1556                       pcdev);
1557     if (err) {
1558         dev_err(pcdev->dev, "Camera interrupt register failed \n");
1559         goto exit_reqirq;
1560     }
1561
1562         pcdev->camera_wq = create_workqueue("camera wq");
1563         if (pcdev->camera_wq == NULL)
1564                 goto exit_free_irq;
1565         INIT_WORK(&pcdev->camera_reinit_work, rk29_camera_reinit_work);
1566
1567     pcdev->soc_host.drv_name    = RK29_CAM_DRV_NAME;
1568     pcdev->soc_host.ops         = &rk29_soc_camera_host_ops;
1569     pcdev->soc_host.priv                = pcdev;
1570     pcdev->soc_host.v4l2_dev.dev        = &pdev->dev;
1571     pcdev->soc_host.nr          = pdev->id;
1572
1573     err = soc_camera_host_register(&pcdev->soc_host);
1574     if (err)
1575         goto exit_free_irq;
1576
1577         hrtimer_init(&pcdev->fps_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
1578         pcdev->fps_timer.function = rk29_camera_fps_func;
1579
1580     RK29CAMERA_DG("%s..%s..%d  \n",__FUNCTION__,__FILE__,__LINE__);
1581     return 0;
1582
1583 exit_free_irq:
1584     free_irq(pcdev->irq, pcdev);
1585         if (pcdev->camera_wq) {
1586                 destroy_workqueue(pcdev->camera_wq);
1587                 pcdev->camera_wq = NULL;
1588         }
1589 exit_reqirq:
1590     iounmap(pcdev->base);
1591 exit_ioremap:
1592     release_mem_region(res->start, res->end - res->start + 1);
1593 exit_reqmem:
1594     if (pcdev->aclk_ddr_lcdc) {
1595                 clk_put(pcdev->aclk_ddr_lcdc);
1596                 pcdev->aclk_ddr_lcdc = NULL;
1597     }
1598         if (pcdev->aclk_disp_matrix) {
1599                 clk_put(pcdev->aclk_disp_matrix);
1600                 pcdev->aclk_disp_matrix = NULL;
1601     }
1602         if (pcdev->hclk_cpu_display) {
1603                 clk_put(pcdev->hclk_cpu_display);
1604                 pcdev->hclk_cpu_display = NULL;
1605     }
1606         if (pcdev->vip_slave) {
1607                 clk_put(pcdev->vip_slave);
1608                 pcdev->vip_slave = NULL;
1609     }
1610         if (pcdev->vip_out) {
1611                 clk_put(pcdev->vip_out);
1612                 pcdev->vip_out = NULL;
1613     }
1614         if (pcdev->vip_input) {
1615                 clk_put(pcdev->vip_input);
1616                 pcdev->vip_input = NULL;
1617     }
1618         if (pcdev->vip_bus) {
1619                 clk_put(pcdev->vip_bus);
1620                 pcdev->vip_bus = NULL;
1621     }
1622     if (pcdev->hclk_disp_matrix) {
1623                 clk_put(pcdev->hclk_disp_matrix);
1624                 pcdev->hclk_disp_matrix = NULL;
1625     }
1626         if (pcdev->vip_matrix) {
1627                 clk_put(pcdev->vip_matrix);
1628                 pcdev->vip_matrix = NULL;
1629     }
1630     kfree(pcdev);
1631 exit_alloc:
1632     rk29_camdev_info_ptr = NULL;
1633 exit:
1634     return err;
1635 }
1636
1637 static int __devexit rk29_camera_remove(struct platform_device *pdev)
1638 {
1639     struct rk29_camera_dev *pcdev = platform_get_drvdata(pdev);
1640     struct resource *res;
1641
1642     free_irq(pcdev->irq, pcdev);
1643
1644         if (pcdev->camera_wq) {
1645                 destroy_workqueue(pcdev->camera_wq);
1646                 pcdev->camera_wq = NULL;
1647         }
1648
1649     soc_camera_host_unregister(&pcdev->soc_host);
1650
1651     res = pcdev->res;
1652     release_mem_region(res->start, res->end - res->start + 1);
1653
1654     if (pcdev->pdata && pcdev->pdata->io_deinit) {         /* ddl@rock-chips.com : Free IO in deinit function */
1655         pcdev->pdata->io_deinit(0);
1656                 pcdev->pdata->io_deinit(1);
1657     }
1658
1659     kfree(pcdev);
1660     rk29_camdev_info_ptr = NULL;
1661     dev_info(&pdev->dev, "RK28 Camera driver unloaded\n");
1662
1663     return 0;
1664 }
1665
1666 static struct platform_driver rk29_camera_driver =
1667 {
1668     .driver     = {
1669         .name   = RK29_CAM_DRV_NAME,
1670     },
1671     .probe              = rk29_camera_probe,
1672     .remove             = __devexit_p(rk29_camera_remove),
1673 };
1674
1675
1676 static int __devinit rk29_camera_init(void)
1677 {
1678     RK29CAMERA_DG("%s..%s..%d  \n",__FUNCTION__,__FILE__,__LINE__);
1679     return platform_driver_register(&rk29_camera_driver);
1680 }
1681
1682 static void __exit rk29_camera_exit(void)
1683 {
1684     platform_driver_unregister(&rk29_camera_driver);
1685 }
1686
1687 device_initcall_sync(rk29_camera_init);
1688 module_exit(rk29_camera_exit);
1689
1690 MODULE_DESCRIPTION("RK29 Soc Camera Host driver");
1691 MODULE_AUTHOR("ddl <ddl@rock-chips>");
1692 MODULE_LICENSE("GPL");