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