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gerrit-public.fairphone.software / kernel / msm-4.9 / 927933f7b4b213357813b394ca66f7a6ce3d28f2 / . / drivers / media / platform / coda.c
blob: e70a2728cd6ba7db17c8fd5cb92f5db59172a03f [file] [log] [blame]
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]1/*
2 * Coda multi-standard codec IP
3 *
4 * Copyright (C) 2012 Vista Silicon S.L.
5 * Javier Martin, <javier.martin@vista-silicon.com>
6 * Xavier Duret
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 */
13
14#include <linux/clk.h>
15#include <linux/delay.h>
16#include <linux/firmware.h>
Philipp Zabel657eee72013-04-29 16:17:14 -0700[diff] [blame]17#include <linux/genalloc.h>
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]18#include <linux/interrupt.h>
19#include <linux/io.h>
20#include <linux/irq.h>
Philipp Zabel9082a7c2013-06-21 03:55:31 -0300[diff] [blame]21#include <linux/kfifo.h>
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]22#include <linux/module.h>
23#include <linux/of_device.h>
24#include <linux/platform_device.h>
25#include <linux/slab.h>
26#include <linux/videodev2.h>
27#include <linux/of.h>
Philipp Zabel657eee72013-04-29 16:17:14 -0700[diff] [blame]28#include <linux/platform_data/coda.h>
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]29
30#include <media/v4l2-ctrls.h>
31#include <media/v4l2-device.h>
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]32#include <media/v4l2-event.h>
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]33#include <media/v4l2-ioctl.h>
34#include <media/v4l2-mem2mem.h>
35#include <media/videobuf2-core.h>
36#include <media/videobuf2-dma-contig.h>
37
38#include "coda.h"
39
40#define CODA_NAME "coda"
41
Philipp Zabel0cddc7e2013-09-30 10:34:44 -0300[diff] [blame]42#define CODADX6_MAX_INSTANCES 4
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]43
44#define CODA_FMO_BUF_SIZE 32
45#define CODADX6_WORK_BUF_SIZE (288 * 1024 + CODA_FMO_BUF_SIZE * 8 * 1024)
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]46#define CODA7_WORK_BUF_SIZE (128 * 1024)
47#define CODA7_TEMP_BUF_SIZE (304 * 1024)
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]48#define CODA_PARA_BUF_SIZE (10 * 1024)
49#define CODA_ISRAM_SIZE (2048 * 2)
Philipp Zabel657eee72013-04-29 16:17:14 -0700[diff] [blame]50#define CODADX6_IRAM_SIZE 0xb000
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]51#define CODA7_IRAM_SIZE 0x14000
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]52
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]53#define CODA7_PS_BUF_SIZE 0x28000
54
55#define CODA_MAX_FRAMEBUFFERS 8
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]56
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]57#define MAX_W 8192
58#define MAX_H 8192
59#define CODA_MAX_FRAME_SIZE 0x100000
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]60#define FMO_SLICE_SAVE_BUF_SIZE (32)
61#define CODA_DEFAULT_GAMMA 4096
62
63#define MIN_W 176
64#define MIN_H 144
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]65
66#define S_ALIGN 1 /* multiple of 2 */
67#define W_ALIGN 1 /* multiple of 2 */
68#define H_ALIGN 1 /* multiple of 2 */
69
70#define fh_to_ctx(__fh) container_of(__fh, struct coda_ctx, fh)
71
72static int coda_debug;
Philipp Zabelc4eb1bfc2013-05-21 04:24:16 -0300[diff] [blame]73module_param(coda_debug, int, 0644);
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]74MODULE_PARM_DESC(coda_debug, "Debug level (0-1)");
75
76enum {
77 V4L2_M2M_SRC = 0,
78 V4L2_M2M_DST = 1,
79};
80
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]81enum coda_inst_type {
82 CODA_INST_ENCODER,
83 CODA_INST_DECODER,
84};
85
86enum coda_product {
87 CODA_DX6 = 0xf001,
Philipp Zabeldf1e74c2012-07-02 06:07:10 -0300[diff] [blame]88 CODA_7541 = 0xf012,
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]89};
90
91struct coda_fmt {
92 char *name;
93 u32 fourcc;
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]94};
95
96struct coda_codec {
97 u32 mode;
98 u32 src_fourcc;
99 u32 dst_fourcc;
100 u32 max_w;
101 u32 max_h;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]102};
103
104struct coda_devtype {
105 char *firmware;
106 enum coda_product product;
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]107 struct coda_codec *codecs;
108 unsigned int num_codecs;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]109 size_t workbuf_size;
110};
111
112/* Per-queue, driver-specific private data */
113struct coda_q_data {
114 unsigned int width;
115 unsigned int height;
116 unsigned int sizeimage;
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]117 unsigned int fourcc;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]118};
119
120struct coda_aux_buf {
121 void *vaddr;
122 dma_addr_t paddr;
123 u32 size;
124};
125
126struct coda_dev {
127 struct v4l2_device v4l2_dev;
128 struct video_device vfd;
129 struct platform_device *plat_dev;
Emil Goodec06d8752012-08-14 17:44:42 -0300[diff] [blame]130 const struct coda_devtype *devtype;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]131
132 void __iomem *regs_base;
133 struct clk *clk_per;
134 struct clk *clk_ahb;
135
136 struct coda_aux_buf codebuf;
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]137 struct coda_aux_buf tempbuf;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]138 struct coda_aux_buf workbuf;
Philipp Zabel657eee72013-04-29 16:17:14 -0700[diff] [blame]139 struct gen_pool *iram_pool;
140 long unsigned int iram_vaddr;
Philipp Zabel10436672012-07-02 09:03:55 -0300[diff] [blame]141 long unsigned int iram_paddr;
Philipp Zabel657eee72013-04-29 16:17:14 -0700[diff] [blame]142 unsigned long iram_size;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]143
144 spinlock_t irqlock;
145 struct mutex dev_mutex;
Philipp Zabelfcb62822013-05-23 10:43:00 -0300[diff] [blame]146 struct mutex coda_mutex;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]147 struct v4l2_m2m_dev *m2m_dev;
148 struct vb2_alloc_ctx *alloc_ctx;
Philipp Zabele11f3e62012-07-25 09:16:58 -0300[diff] [blame]149 struct list_head instances;
150 unsigned long instance_mask;
Philipp Zabel2fb57f02012-07-25 09:22:07 -0300[diff] [blame]151 struct delayed_work timeout;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]152};
153
154struct coda_params {
Philipp Zabel8f35c7b2012-07-09 04:25:52 -0300[diff] [blame]155 u8 rot_mode;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]156 u8 h264_intra_qp;
157 u8 h264_inter_qp;
158 u8 mpeg4_intra_qp;
159 u8 mpeg4_inter_qp;
160 u8 gop_size;
161 int codec_mode;
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]162 int codec_mode_aux;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]163 enum v4l2_mpeg_video_multi_slice_mode slice_mode;
164 u32 framerate;
165 u16 bitrate;
Philipp Zabelc566c782012-08-08 11:59:38 -0300[diff] [blame]166 u32 slice_max_bits;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]167 u32 slice_max_mb;
168};
169
Philipp Zabelc2d22512013-06-21 03:55:28 -0300[diff] [blame]170struct coda_iram_info {
171 u32 axi_sram_use;
172 phys_addr_t buf_bit_use;
173 phys_addr_t buf_ip_ac_dc_use;
174 phys_addr_t buf_dbk_y_use;
175 phys_addr_t buf_dbk_c_use;
176 phys_addr_t buf_ovl_use;
177 phys_addr_t buf_btp_use;
178 phys_addr_t search_ram_paddr;
179 int search_ram_size;
180};
181
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]182struct coda_ctx {
183 struct coda_dev *dev;
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]184 struct mutex buffer_mutex;
Philipp Zabele11f3e62012-07-25 09:16:58 -0300[diff] [blame]185 struct list_head list;
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]186 struct work_struct skip_run;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]187 int aborting;
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]188 int initialized;
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]189 int streamon_out;
190 int streamon_cap;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]191 u32 isequence;
Philipp Zabel9082a7c2013-06-21 03:55:31 -0300[diff] [blame]192 u32 qsequence;
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]193 u32 osequence;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]194 struct coda_q_data q_data[2];
195 enum coda_inst_type inst_type;
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]196 struct coda_codec *codec;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]197 enum v4l2_colorspace colorspace;
198 struct coda_params params;
199 struct v4l2_m2m_ctx *m2m_ctx;
200 struct v4l2_ctrl_handler ctrls;
201 struct v4l2_fh fh;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]202 int gopcounter;
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]203 int runcounter;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]204 char vpu_header[3][64];
205 int vpu_header_size[3];
Philipp Zabel9082a7c2013-06-21 03:55:31 -0300[diff] [blame]206 struct kfifo bitstream_fifo;
207 struct mutex bitstream_mutex;
208 struct coda_aux_buf bitstream;
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]209 bool prescan_failed;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]210 struct coda_aux_buf parabuf;
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]211 struct coda_aux_buf psbuf;
212 struct coda_aux_buf slicebuf;
Philipp Zabelec25f682012-07-20 08:54:29 -0300[diff] [blame]213 struct coda_aux_buf internal_frames[CODA_MAX_FRAMEBUFFERS];
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]214 struct coda_aux_buf workbuf;
Philipp Zabelec25f682012-07-20 08:54:29 -0300[diff] [blame]215 int num_internal_frames;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]216 int idx;
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]217 int reg_idx;
Philipp Zabelc2d22512013-06-21 03:55:28 -0300[diff] [blame]218 struct coda_iram_info iram_info;
Philipp Zabel9082a7c2013-06-21 03:55:31 -0300[diff] [blame]219 u32 bit_stream_param;
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]220 u32 frm_dis_flg;
221 int display_idx;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]222};
223
Javier Martin832fbb52012-10-29 08:34:59 -0300[diff] [blame]224static const u8 coda_filler_nal[14] = { 0x00, 0x00, 0x00, 0x01, 0x0c, 0xff,
225 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x80 };
226static const u8 coda_filler_size[8] = { 0, 7, 14, 13, 12, 11, 10, 9 };
Javier Martin3f3f5c72012-10-29 05:20:29 -0300[diff] [blame]227
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]228static inline void coda_write(struct coda_dev *dev, u32 data, u32 reg)
229{
230 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
231 "%s: data=0x%x, reg=0x%x\n", __func__, data, reg);
232 writel(data, dev->regs_base + reg);
233}
234
235static inline unsigned int coda_read(struct coda_dev *dev, u32 reg)
236{
237 u32 data;
238 data = readl(dev->regs_base + reg);
239 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
240 "%s: data=0x%x, reg=0x%x\n", __func__, data, reg);
241 return data;
242}
243
244static inline unsigned long coda_isbusy(struct coda_dev *dev)
245{
246 return coda_read(dev, CODA_REG_BIT_BUSY);
247}
248
249static inline int coda_is_initialized(struct coda_dev *dev)
250{
251 return (coda_read(dev, CODA_REG_BIT_CUR_PC) != 0);
252}
253
254static int coda_wait_timeout(struct coda_dev *dev)
255{
256 unsigned long timeout = jiffies + msecs_to_jiffies(1000);
257
258 while (coda_isbusy(dev)) {
259 if (time_after(jiffies, timeout))
260 return -ETIMEDOUT;
261 }
262 return 0;
263}
264
265static void coda_command_async(struct coda_ctx *ctx, int cmd)
266{
267 struct coda_dev *dev = ctx->dev;
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]268
269 if (dev->devtype->product == CODA_7541) {
270 /* Restore context related registers to CODA */
Philipp Zabel9082a7c2013-06-21 03:55:31 -0300[diff] [blame]271 coda_write(dev, ctx->bit_stream_param,
272 CODA_REG_BIT_BIT_STREAM_PARAM);
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]273 coda_write(dev, ctx->frm_dis_flg,
274 CODA_REG_BIT_FRM_DIS_FLG(ctx->reg_idx));
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]275 coda_write(dev, ctx->workbuf.paddr, CODA_REG_BIT_WORK_BUF_ADDR);
276 }
277
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]278 coda_write(dev, CODA_REG_BIT_BUSY_FLAG, CODA_REG_BIT_BUSY);
279
280 coda_write(dev, ctx->idx, CODA_REG_BIT_RUN_INDEX);
281 coda_write(dev, ctx->params.codec_mode, CODA_REG_BIT_RUN_COD_STD);
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]282 coda_write(dev, ctx->params.codec_mode_aux, CODA7_REG_BIT_RUN_AUX_STD);
283
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]284 coda_write(dev, cmd, CODA_REG_BIT_RUN_COMMAND);
285}
286
287static int coda_command_sync(struct coda_ctx *ctx, int cmd)
288{
289 struct coda_dev *dev = ctx->dev;
290
291 coda_command_async(ctx, cmd);
292 return coda_wait_timeout(dev);
293}
294
295static struct coda_q_data *get_q_data(struct coda_ctx *ctx,
296 enum v4l2_buf_type type)
297{
298 switch (type) {
299 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
300 return &(ctx->q_data[V4L2_M2M_SRC]);
301 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
302 return &(ctx->q_data[V4L2_M2M_DST]);
303 default:
304 BUG();
305 }
306 return NULL;
307}
308
309/*
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]310 * Array of all formats supported by any version of Coda:
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]311 */
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]312static struct coda_fmt coda_formats[] = {
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]313 {
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]314 .name = "YUV 4:2:0 Planar, YCbCr",
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]315 .fourcc = V4L2_PIX_FMT_YUV420,
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]316 },
317 {
318 .name = "YUV 4:2:0 Planar, YCrCb",
319 .fourcc = V4L2_PIX_FMT_YVU420,
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]320 },
321 {
322 .name = "H264 Encoded Stream",
323 .fourcc = V4L2_PIX_FMT_H264,
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]324 },
325 {
326 .name = "MPEG4 Encoded Stream",
327 .fourcc = V4L2_PIX_FMT_MPEG4,
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]328 },
329};
330
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]331#define CODA_CODEC(mode, src_fourcc, dst_fourcc, max_w, max_h) \
332 { mode, src_fourcc, dst_fourcc, max_w, max_h }
333
334/*
335 * Arrays of codecs supported by each given version of Coda:
336 * i.MX27 -> codadx6
337 * i.MX5x -> coda7
338 * i.MX6 -> coda960
339 * Use V4L2_PIX_FMT_YUV420 as placeholder for all supported YUV 4:2:0 variants
340 */
341static struct coda_codec codadx6_codecs[] = {
342 CODA_CODEC(CODADX6_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 720, 576),
343 CODA_CODEC(CODADX6_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 720, 576),
Philipp Zabeldf1e74c2012-07-02 06:07:10 -0300[diff] [blame]344};
345
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]346static struct coda_codec coda7_codecs[] = {
347 CODA_CODEC(CODA7_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 1280, 720),
348 CODA_CODEC(CODA7_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 1280, 720),
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]349 CODA_CODEC(CODA7_MODE_DECODE_H264, V4L2_PIX_FMT_H264, V4L2_PIX_FMT_YUV420, 1920, 1080),
350 CODA_CODEC(CODA7_MODE_DECODE_MP4, V4L2_PIX_FMT_MPEG4, V4L2_PIX_FMT_YUV420, 1920, 1080),
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]351};
352
353static bool coda_format_is_yuv(u32 fourcc)
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]354{
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]355 switch (fourcc) {
356 case V4L2_PIX_FMT_YUV420:
357 case V4L2_PIX_FMT_YVU420:
358 return true;
359 default:
360 return false;
361 }
362}
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]363
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]364/*
365 * Normalize all supported YUV 4:2:0 formats to the value used in the codec
366 * tables.
367 */
368static u32 coda_format_normalize_yuv(u32 fourcc)
369{
370 return coda_format_is_yuv(fourcc) ? V4L2_PIX_FMT_YUV420 : fourcc;
371}
372
373static struct coda_codec *coda_find_codec(struct coda_dev *dev, int src_fourcc,
374 int dst_fourcc)
375{
376 struct coda_codec *codecs = dev->devtype->codecs;
377 int num_codecs = dev->devtype->num_codecs;
378 int k;
379
380 src_fourcc = coda_format_normalize_yuv(src_fourcc);
381 dst_fourcc = coda_format_normalize_yuv(dst_fourcc);
382 if (src_fourcc == dst_fourcc)
383 return NULL;
384
385 for (k = 0; k < num_codecs; k++) {
386 if (codecs[k].src_fourcc == src_fourcc &&
387 codecs[k].dst_fourcc == dst_fourcc)
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]388 break;
389 }
390
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]391 if (k == num_codecs)
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]392 return NULL;
393
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]394 return &codecs[k];
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]395}
396
Philipp Zabel927933f2013-09-30 10:34:48 -0300[diff] [blame^]397static char *coda_product_name(int product)
398{
399 static char buf[9];
400
401 switch (product) {
402 case CODA_DX6:
403 return "CodaDx6";
404 case CODA_7541:
405 return "CODA7541";
406 default:
407 snprintf(buf, sizeof(buf), "(0x%04x)", product);
408 return buf;
409 }
410}
411
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]412/*
413 * V4L2 ioctl() operations.
414 */
415static int vidioc_querycap(struct file *file, void *priv,
416 struct v4l2_capability *cap)
417{
Philipp Zabel927933f2013-09-30 10:34:48 -0300[diff] [blame^]418 struct coda_ctx *ctx = fh_to_ctx(priv);
419
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]420 strlcpy(cap->driver, CODA_NAME, sizeof(cap->driver));
Philipp Zabel927933f2013-09-30 10:34:48 -0300[diff] [blame^]421 strlcpy(cap->card, coda_product_name(ctx->dev->devtype->product),
422 sizeof(cap->card));
Philipp Zabeldad0e1c2013-05-21 04:18:22 -0300[diff] [blame]423 strlcpy(cap->bus_info, "platform:" CODA_NAME, sizeof(cap->bus_info));
Sylwester Nawrockic3aac8b2012-08-22 18:00:19 -0300[diff] [blame]424 /*
425 * This is only a mem-to-mem video device. The capture and output
426 * device capability flags are left only for backward compatibility
427 * and are scheduled for removal.
428 */
429 cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OUTPUT |
430 V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]431 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
432
433 return 0;
434}
435
436static int enum_fmt(void *priv, struct v4l2_fmtdesc *f,
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]437 enum v4l2_buf_type type, int src_fourcc)
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]438{
439 struct coda_ctx *ctx = fh_to_ctx(priv);
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]440 struct coda_codec *codecs = ctx->dev->devtype->codecs;
441 struct coda_fmt *formats = coda_formats;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]442 struct coda_fmt *fmt;
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]443 int num_codecs = ctx->dev->devtype->num_codecs;
444 int num_formats = ARRAY_SIZE(coda_formats);
445 int i, k, num = 0;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]446
447 for (i = 0; i < num_formats; i++) {
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]448 /* Both uncompressed formats are always supported */
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]449 if (coda_format_is_yuv(formats[i].fourcc) &&
450 !coda_format_is_yuv(src_fourcc)) {
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]451 if (num == f->index)
452 break;
453 ++num;
454 continue;
455 }
456 /* Compressed formats may be supported, check the codec list */
457 for (k = 0; k < num_codecs; k++) {
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]458 /* if src_fourcc is set, only consider matching codecs */
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]459 if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]460 formats[i].fourcc == codecs[k].dst_fourcc &&
461 (!src_fourcc || src_fourcc == codecs[k].src_fourcc))
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]462 break;
463 if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT &&
464 formats[i].fourcc == codecs[k].src_fourcc)
465 break;
466 }
467 if (k < num_codecs) {
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]468 if (num == f->index)
469 break;
470 ++num;
471 }
472 }
473
474 if (i < num_formats) {
475 fmt = &formats[i];
476 strlcpy(f->description, fmt->name, sizeof(f->description));
477 f->pixelformat = fmt->fourcc;
Philipp Zabelbaf70212013-09-30 10:34:46 -0300[diff] [blame]478 if (!coda_format_is_yuv(fmt->fourcc))
479 f->flags |= V4L2_FMT_FLAG_COMPRESSED;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]480 return 0;
481 }
482
483 /* Format not found */
484 return -EINVAL;
485}
486
487static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
488 struct v4l2_fmtdesc *f)
489{
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]490 struct coda_ctx *ctx = fh_to_ctx(priv);
491 struct vb2_queue *src_vq;
492 struct coda_q_data *q_data_src;
493
494 /* If the source format is already fixed, only list matching formats */
495 src_vq = v4l2_m2m_get_vq(ctx->m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
496 if (vb2_is_streaming(src_vq)) {
497 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
498
499 return enum_fmt(priv, f, V4L2_BUF_TYPE_VIDEO_CAPTURE,
500 q_data_src->fourcc);
501 }
502
503 return enum_fmt(priv, f, V4L2_BUF_TYPE_VIDEO_CAPTURE, 0);
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]504}
505
506static int vidioc_enum_fmt_vid_out(struct file *file, void *priv,
507 struct v4l2_fmtdesc *f)
508{
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]509 return enum_fmt(priv, f, V4L2_BUF_TYPE_VIDEO_OUTPUT, 0);
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]510}
511
512static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
513{
514 struct vb2_queue *vq;
515 struct coda_q_data *q_data;
516 struct coda_ctx *ctx = fh_to_ctx(priv);
517
518 vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
519 if (!vq)
520 return -EINVAL;
521
522 q_data = get_q_data(ctx, f->type);
523
524 f->fmt.pix.field = V4L2_FIELD_NONE;
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]525 f->fmt.pix.pixelformat = q_data->fourcc;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]526 f->fmt.pix.width = q_data->width;
527 f->fmt.pix.height = q_data->height;
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]528 if (coda_format_is_yuv(f->fmt.pix.pixelformat))
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]529 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 2);
530 else /* encoded formats h.264/mpeg4 */
531 f->fmt.pix.bytesperline = 0;
532
533 f->fmt.pix.sizeimage = q_data->sizeimage;
534 f->fmt.pix.colorspace = ctx->colorspace;
535
536 return 0;
537}
538
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]539static int vidioc_try_fmt(struct coda_codec *codec, struct v4l2_format *f)
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]540{
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]541 unsigned int max_w, max_h;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]542 enum v4l2_field field;
543
544 field = f->fmt.pix.field;
545 if (field == V4L2_FIELD_ANY)
546 field = V4L2_FIELD_NONE;
547 else if (V4L2_FIELD_NONE != field)
548 return -EINVAL;
549
550 /* V4L2 specification suggests the driver corrects the format struct
551 * if any of the dimensions is unsupported */
552 f->fmt.pix.field = field;
553
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]554 if (codec) {
555 max_w = codec->max_w;
556 max_h = codec->max_h;
557 } else {
558 max_w = MAX_W;
559 max_h = MAX_H;
560 }
561 v4l_bound_align_image(&f->fmt.pix.width, MIN_W, max_w,
562 W_ALIGN, &f->fmt.pix.height,
563 MIN_H, max_h, H_ALIGN, S_ALIGN);
564
565 if (coda_format_is_yuv(f->fmt.pix.pixelformat)) {
Philipp Zabel47cf0c62013-05-23 10:42:54 -0300[diff] [blame]566 /* Frame stride must be multiple of 8 */
567 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 8);
568 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
Philipp Zabel451d43a2012-07-26 09:18:27 -0300[diff] [blame]569 f->fmt.pix.height * 3 / 2;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]570 } else { /*encoded formats h.264/mpeg4 */
571 f->fmt.pix.bytesperline = 0;
572 f->fmt.pix.sizeimage = CODA_MAX_FRAME_SIZE;
573 }
574
575 return 0;
576}
577
578static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
579 struct v4l2_format *f)
580{
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]581 struct coda_ctx *ctx = fh_to_ctx(priv);
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]582 struct coda_codec *codec;
583 struct vb2_queue *src_vq;
584 int ret;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]585
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]586 /*
587 * If the source format is already fixed, try to find a codec that
588 * converts to the given destination format
589 */
590 src_vq = v4l2_m2m_get_vq(ctx->m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
591 if (vb2_is_streaming(src_vq)) {
592 struct coda_q_data *q_data_src;
593
594 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
595 codec = coda_find_codec(ctx->dev, q_data_src->fourcc,
596 f->fmt.pix.pixelformat);
597 if (!codec)
598 return -EINVAL;
599 } else {
600 /* Otherwise determine codec by encoded format, if possible */
601 codec = coda_find_codec(ctx->dev, V4L2_PIX_FMT_YUV420,
602 f->fmt.pix.pixelformat);
603 }
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]604
605 f->fmt.pix.colorspace = ctx->colorspace;
606
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]607 ret = vidioc_try_fmt(codec, f);
608 if (ret < 0)
609 return ret;
610
611 /* The h.264 decoder only returns complete 16x16 macroblocks */
612 if (codec && codec->src_fourcc == V4L2_PIX_FMT_H264) {
613 f->fmt.pix.width = round_up(f->fmt.pix.width, 16);
614 f->fmt.pix.height = round_up(f->fmt.pix.height, 16);
615 f->fmt.pix.bytesperline = f->fmt.pix.width;
616 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
617 f->fmt.pix.height * 3 / 2;
618 }
619
620 return 0;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]621}
622
623static int vidioc_try_fmt_vid_out(struct file *file, void *priv,
624 struct v4l2_format *f)
625{
626 struct coda_ctx *ctx = fh_to_ctx(priv);
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]627 struct coda_codec *codec;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]628
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]629 /* Determine codec by encoded format, returns NULL if raw or invalid */
630 codec = coda_find_codec(ctx->dev, f->fmt.pix.pixelformat,
631 V4L2_PIX_FMT_YUV420);
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]632
633 if (!f->fmt.pix.colorspace)
634 f->fmt.pix.colorspace = V4L2_COLORSPACE_REC709;
635
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]636 return vidioc_try_fmt(codec, f);
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]637}
638
639static int vidioc_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f)
640{
641 struct coda_q_data *q_data;
642 struct vb2_queue *vq;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]643
644 vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
645 if (!vq)
646 return -EINVAL;
647
648 q_data = get_q_data(ctx, f->type);
649 if (!q_data)
650 return -EINVAL;
651
652 if (vb2_is_busy(vq)) {
653 v4l2_err(&ctx->dev->v4l2_dev, "%s queue busy\n", __func__);
654 return -EBUSY;
655 }
656
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]657 q_data->fourcc = f->fmt.pix.pixelformat;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]658 q_data->width = f->fmt.pix.width;
659 q_data->height = f->fmt.pix.height;
Philipp Zabel451d43a2012-07-26 09:18:27 -0300[diff] [blame]660 q_data->sizeimage = f->fmt.pix.sizeimage;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]661
662 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
663 "Setting format for type %d, wxh: %dx%d, fmt: %d\n",
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]664 f->type, q_data->width, q_data->height, q_data->fourcc);
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]665
666 return 0;
667}
668
669static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
670 struct v4l2_format *f)
671{
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]672 struct coda_ctx *ctx = fh_to_ctx(priv);
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]673 int ret;
674
675 ret = vidioc_try_fmt_vid_cap(file, priv, f);
676 if (ret)
677 return ret;
678
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]679 return vidioc_s_fmt(ctx, f);
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]680}
681
682static int vidioc_s_fmt_vid_out(struct file *file, void *priv,
683 struct v4l2_format *f)
684{
685 struct coda_ctx *ctx = fh_to_ctx(priv);
686 int ret;
687
688 ret = vidioc_try_fmt_vid_out(file, priv, f);
689 if (ret)
690 return ret;
691
Richard Zhao8d621472012-08-21 02:47:42 -0300[diff] [blame]692 ret = vidioc_s_fmt(ctx, f);
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]693 if (ret)
694 ctx->colorspace = f->fmt.pix.colorspace;
695
696 return ret;
697}
698
699static int vidioc_reqbufs(struct file *file, void *priv,
700 struct v4l2_requestbuffers *reqbufs)
701{
702 struct coda_ctx *ctx = fh_to_ctx(priv);
703
704 return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs);
705}
706
707static int vidioc_querybuf(struct file *file, void *priv,
708 struct v4l2_buffer *buf)
709{
710 struct coda_ctx *ctx = fh_to_ctx(priv);
711
712 return v4l2_m2m_querybuf(file, ctx->m2m_ctx, buf);
713}
714
715static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
716{
717 struct coda_ctx *ctx = fh_to_ctx(priv);
718
719 return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf);
720}
721
Philipp Zabel419869c2013-05-23 07:06:30 -0300[diff] [blame]722static int vidioc_expbuf(struct file *file, void *priv,
723 struct v4l2_exportbuffer *eb)
724{
725 struct coda_ctx *ctx = fh_to_ctx(priv);
726
727 return v4l2_m2m_expbuf(file, ctx->m2m_ctx, eb);
728}
729
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]730static bool coda_buf_is_end_of_stream(struct coda_ctx *ctx,
731 struct v4l2_buffer *buf)
732{
733 struct vb2_queue *src_vq;
734
735 src_vq = v4l2_m2m_get_vq(ctx->m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
736
737 return ((ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG) &&
738 (buf->sequence == (ctx->qsequence - 1)));
739}
740
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]741static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
742{
743 struct coda_ctx *ctx = fh_to_ctx(priv);
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]744 int ret;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]745
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]746 ret = v4l2_m2m_dqbuf(file, ctx->m2m_ctx, buf);
747
748 /* If this is the last capture buffer, emit an end-of-stream event */
749 if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
750 coda_buf_is_end_of_stream(ctx, buf)) {
751 const struct v4l2_event eos_event = {
752 .type = V4L2_EVENT_EOS
753 };
754
755 v4l2_event_queue_fh(&ctx->fh, &eos_event);
756 }
757
758 return ret;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]759}
760
Philipp Zabel8fdf94a2013-05-21 04:16:29 -0300[diff] [blame]761static int vidioc_create_bufs(struct file *file, void *priv,
762 struct v4l2_create_buffers *create)
763{
764 struct coda_ctx *ctx = fh_to_ctx(priv);
765
766 return v4l2_m2m_create_bufs(file, ctx->m2m_ctx, create);
767}
768
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]769static int vidioc_streamon(struct file *file, void *priv,
770 enum v4l2_buf_type type)
771{
772 struct coda_ctx *ctx = fh_to_ctx(priv);
773
774 return v4l2_m2m_streamon(file, ctx->m2m_ctx, type);
775}
776
777static int vidioc_streamoff(struct file *file, void *priv,
778 enum v4l2_buf_type type)
779{
780 struct coda_ctx *ctx = fh_to_ctx(priv);
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]781 int ret;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]782
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]783 /*
784 * This indirectly calls __vb2_queue_cancel, which dequeues all buffers.
785 * We therefore have to lock it against running hardware in this context,
786 * which still needs the buffers.
787 */
788 mutex_lock(&ctx->buffer_mutex);
789 ret = v4l2_m2m_streamoff(file, ctx->m2m_ctx, type);
790 mutex_unlock(&ctx->buffer_mutex);
791
792 return ret;
793}
794
795static int vidioc_decoder_cmd(struct file *file, void *fh,
796 struct v4l2_decoder_cmd *dc)
797{
798 struct coda_ctx *ctx = fh_to_ctx(fh);
799
800 if (dc->cmd != V4L2_DEC_CMD_STOP)
801 return -EINVAL;
802
803 if ((dc->flags & V4L2_DEC_CMD_STOP_TO_BLACK) ||
804 (dc->flags & V4L2_DEC_CMD_STOP_IMMEDIATELY))
805 return -EINVAL;
806
807 if (dc->stop.pts != 0)
808 return -EINVAL;
809
810 if (ctx->inst_type != CODA_INST_DECODER)
811 return -EINVAL;
812
813 /* Set the strem-end flag on this context */
814 ctx->bit_stream_param |= CODA_BIT_STREAM_END_FLAG;
815
816 return 0;
817}
818
819static int vidioc_subscribe_event(struct v4l2_fh *fh,
820 const struct v4l2_event_subscription *sub)
821{
822 switch (sub->type) {
823 case V4L2_EVENT_EOS:
824 return v4l2_event_subscribe(fh, sub, 0, NULL);
825 default:
826 return v4l2_ctrl_subscribe_event(fh, sub);
827 }
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]828}
829
830static const struct v4l2_ioctl_ops coda_ioctl_ops = {
831 .vidioc_querycap = vidioc_querycap,
832
833 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
834 .vidioc_g_fmt_vid_cap = vidioc_g_fmt,
835 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
836 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
837
838 .vidioc_enum_fmt_vid_out = vidioc_enum_fmt_vid_out,
839 .vidioc_g_fmt_vid_out = vidioc_g_fmt,
840 .vidioc_try_fmt_vid_out = vidioc_try_fmt_vid_out,
841 .vidioc_s_fmt_vid_out = vidioc_s_fmt_vid_out,
842
843 .vidioc_reqbufs = vidioc_reqbufs,
844 .vidioc_querybuf = vidioc_querybuf,
845
846 .vidioc_qbuf = vidioc_qbuf,
Philipp Zabel419869c2013-05-23 07:06:30 -0300[diff] [blame]847 .vidioc_expbuf = vidioc_expbuf,
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]848 .vidioc_dqbuf = vidioc_dqbuf,
Philipp Zabel8fdf94a2013-05-21 04:16:29 -0300[diff] [blame]849 .vidioc_create_bufs = vidioc_create_bufs,
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]850
851 .vidioc_streamon = vidioc_streamon,
852 .vidioc_streamoff = vidioc_streamoff,
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]853
854 .vidioc_decoder_cmd = vidioc_decoder_cmd,
855
856 .vidioc_subscribe_event = vidioc_subscribe_event,
857 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]858};
859
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]860static int coda_start_decoding(struct coda_ctx *ctx);
861
862static void coda_skip_run(struct work_struct *work)
863{
864 struct coda_ctx *ctx = container_of(work, struct coda_ctx, skip_run);
865
866 v4l2_m2m_job_finish(ctx->dev->m2m_dev, ctx->m2m_ctx);
867}
868
Philipp Zabel9082a7c2013-06-21 03:55:31 -0300[diff] [blame]869static inline int coda_get_bitstream_payload(struct coda_ctx *ctx)
870{
871 return kfifo_len(&ctx->bitstream_fifo);
872}
873
874static void coda_kfifo_sync_from_device(struct coda_ctx *ctx)
875{
876 struct __kfifo *kfifo = &ctx->bitstream_fifo.kfifo;
877 struct coda_dev *dev = ctx->dev;
878 u32 rd_ptr;
879
880 rd_ptr = coda_read(dev, CODA_REG_BIT_RD_PTR(ctx->reg_idx));
881 kfifo->out = (kfifo->in & ~kfifo->mask) |
882 (rd_ptr - ctx->bitstream.paddr);
883 if (kfifo->out > kfifo->in)
884 kfifo->out -= kfifo->mask + 1;
885}
886
887static void coda_kfifo_sync_to_device_full(struct coda_ctx *ctx)
888{
889 struct __kfifo *kfifo = &ctx->bitstream_fifo.kfifo;
890 struct coda_dev *dev = ctx->dev;
891 u32 rd_ptr, wr_ptr;
892
893 rd_ptr = ctx->bitstream.paddr + (kfifo->out & kfifo->mask);
894 coda_write(dev, rd_ptr, CODA_REG_BIT_RD_PTR(ctx->reg_idx));
895 wr_ptr = ctx->bitstream.paddr + (kfifo->in & kfifo->mask);
896 coda_write(dev, wr_ptr, CODA_REG_BIT_WR_PTR(ctx->reg_idx));
897}
898
899static void coda_kfifo_sync_to_device_write(struct coda_ctx *ctx)
900{
901 struct __kfifo *kfifo = &ctx->bitstream_fifo.kfifo;
902 struct coda_dev *dev = ctx->dev;
903 u32 wr_ptr;
904
905 wr_ptr = ctx->bitstream.paddr + (kfifo->in & kfifo->mask);
906 coda_write(dev, wr_ptr, CODA_REG_BIT_WR_PTR(ctx->reg_idx));
907}
908
909static int coda_bitstream_queue(struct coda_ctx *ctx, struct vb2_buffer *src_buf)
910{
911 u32 src_size = vb2_get_plane_payload(src_buf, 0);
912 u32 n;
913
914 n = kfifo_in(&ctx->bitstream_fifo, vb2_plane_vaddr(src_buf, 0), src_size);
915 if (n < src_size)
916 return -ENOSPC;
917
918 dma_sync_single_for_device(&ctx->dev->plat_dev->dev, ctx->bitstream.paddr,
919 ctx->bitstream.size, DMA_TO_DEVICE);
920
921 ctx->qsequence++;
922
923 return 0;
924}
925
926static bool coda_bitstream_try_queue(struct coda_ctx *ctx,
927 struct vb2_buffer *src_buf)
928{
929 int ret;
930
931 if (coda_get_bitstream_payload(ctx) +
932 vb2_get_plane_payload(src_buf, 0) + 512 >= ctx->bitstream.size)
933 return false;
934
935 if (vb2_plane_vaddr(src_buf, 0) == NULL) {
936 v4l2_err(&ctx->dev->v4l2_dev, "trying to queue empty buffer\n");
937 return true;
938 }
939
940 ret = coda_bitstream_queue(ctx, src_buf);
941 if (ret < 0) {
942 v4l2_err(&ctx->dev->v4l2_dev, "bitstream buffer overflow\n");
943 return false;
944 }
945 /* Sync read pointer to device */
946 if (ctx == v4l2_m2m_get_curr_priv(ctx->dev->m2m_dev))
947 coda_kfifo_sync_to_device_write(ctx);
948
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]949 ctx->prescan_failed = false;
950
Philipp Zabel9082a7c2013-06-21 03:55:31 -0300[diff] [blame]951 return true;
952}
953
954static void coda_fill_bitstream(struct coda_ctx *ctx)
955{
956 struct vb2_buffer *src_buf;
957
958 while (v4l2_m2m_num_src_bufs_ready(ctx->m2m_ctx) > 0) {
959 src_buf = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
960
961 if (coda_bitstream_try_queue(ctx, src_buf)) {
962 src_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
963 v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE);
964 } else {
965 break;
966 }
967 }
968}
969
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]970/*
971 * Mem-to-mem operations.
972 */
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]973static int coda_prepare_decode(struct coda_ctx *ctx)
974{
975 struct vb2_buffer *dst_buf;
976 struct coda_dev *dev = ctx->dev;
977 struct coda_q_data *q_data_dst;
978 u32 stridey, height;
979 u32 picture_y, picture_cb, picture_cr;
980
981 dst_buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
982 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
983
984 if (ctx->params.rot_mode & CODA_ROT_90) {
985 stridey = q_data_dst->height;
986 height = q_data_dst->width;
987 } else {
988 stridey = q_data_dst->width;
989 height = q_data_dst->height;
990 }
991
992 /* Try to copy source buffer contents into the bitstream ringbuffer */
993 mutex_lock(&ctx->bitstream_mutex);
994 coda_fill_bitstream(ctx);
995 mutex_unlock(&ctx->bitstream_mutex);
996
997 if (coda_get_bitstream_payload(ctx) < 512 &&
998 (!(ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG))) {
999 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
1000 "bitstream payload: %d, skipping\n",
1001 coda_get_bitstream_payload(ctx));
1002 schedule_work(&ctx->skip_run);
1003 return -EAGAIN;
1004 }
1005
1006 /* Run coda_start_decoding (again) if not yet initialized */
1007 if (!ctx->initialized) {
1008 int ret = coda_start_decoding(ctx);
1009 if (ret < 0) {
1010 v4l2_err(&dev->v4l2_dev, "failed to start decoding\n");
1011 schedule_work(&ctx->skip_run);
1012 return -EAGAIN;
1013 } else {
1014 ctx->initialized = 1;
1015 }
1016 }
1017
1018 /* Set rotator output */
1019 picture_y = vb2_dma_contig_plane_dma_addr(dst_buf, 0);
1020 if (q_data_dst->fourcc == V4L2_PIX_FMT_YVU420) {
1021 /* Switch Cr and Cb for YVU420 format */
1022 picture_cr = picture_y + stridey * height;
1023 picture_cb = picture_cr + stridey / 2 * height / 2;
1024 } else {
1025 picture_cb = picture_y + stridey * height;
1026 picture_cr = picture_cb + stridey / 2 * height / 2;
1027 }
1028 coda_write(dev, picture_y, CODA_CMD_DEC_PIC_ROT_ADDR_Y);
1029 coda_write(dev, picture_cb, CODA_CMD_DEC_PIC_ROT_ADDR_CB);
1030 coda_write(dev, picture_cr, CODA_CMD_DEC_PIC_ROT_ADDR_CR);
1031 coda_write(dev, stridey, CODA_CMD_DEC_PIC_ROT_STRIDE);
1032 coda_write(dev, CODA_ROT_MIR_ENABLE | ctx->params.rot_mode,
1033 CODA_CMD_DEC_PIC_ROT_MODE);
1034
1035 switch (dev->devtype->product) {
1036 case CODA_DX6:
1037 /* TBD */
1038 case CODA_7541:
1039 coda_write(dev, CODA_PRE_SCAN_EN, CODA_CMD_DEC_PIC_OPTION);
1040 break;
1041 }
1042
1043 coda_write(dev, 0, CODA_CMD_DEC_PIC_SKIP_NUM);
1044
1045 coda_write(dev, 0, CODA_CMD_DEC_PIC_BB_START);
1046 coda_write(dev, 0, CODA_CMD_DEC_PIC_START_BYTE);
1047
1048 return 0;
1049}
1050
Philipp Zabel477c1cf2013-06-21 03:55:33 -0300[diff] [blame]1051static void coda_prepare_encode(struct coda_ctx *ctx)
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]1052{
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]1053 struct coda_q_data *q_data_src, *q_data_dst;
1054 struct vb2_buffer *src_buf, *dst_buf;
1055 struct coda_dev *dev = ctx->dev;
1056 int force_ipicture;
1057 int quant_param = 0;
1058 u32 picture_y, picture_cb, picture_cr;
1059 u32 pic_stream_buffer_addr, pic_stream_buffer_size;
1060 u32 dst_fourcc;
1061
1062 src_buf = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
1063 dst_buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
1064 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1065 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]1066 dst_fourcc = q_data_dst->fourcc;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]1067
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]1068 src_buf->v4l2_buf.sequence = ctx->osequence;
1069 dst_buf->v4l2_buf.sequence = ctx->osequence;
1070 ctx->osequence++;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]1071
1072 /*
1073 * Workaround coda firmware BUG that only marks the first
1074 * frame as IDR. This is a problem for some decoders that can't
1075 * recover when a frame is lost.
1076 */
1077 if (src_buf->v4l2_buf.sequence % ctx->params.gop_size) {
1078 src_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_PFRAME;
1079 src_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_KEYFRAME;
1080 } else {
1081 src_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_KEYFRAME;
1082 src_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_PFRAME;
1083 }
1084
1085 /*
1086 * Copy headers at the beginning of the first frame for H.264 only.
1087 * In MPEG4 they are already copied by the coda.
1088 */
1089 if (src_buf->v4l2_buf.sequence == 0) {
1090 pic_stream_buffer_addr =
1091 vb2_dma_contig_plane_dma_addr(dst_buf, 0) +
1092 ctx->vpu_header_size[0] +
1093 ctx->vpu_header_size[1] +
1094 ctx->vpu_header_size[2];
1095 pic_stream_buffer_size = CODA_MAX_FRAME_SIZE -
1096 ctx->vpu_header_size[0] -
1097 ctx->vpu_header_size[1] -
1098 ctx->vpu_header_size[2];
1099 memcpy(vb2_plane_vaddr(dst_buf, 0),
1100 &ctx->vpu_header[0][0], ctx->vpu_header_size[0]);
1101 memcpy(vb2_plane_vaddr(dst_buf, 0) + ctx->vpu_header_size[0],
1102 &ctx->vpu_header[1][0], ctx->vpu_header_size[1]);
1103 memcpy(vb2_plane_vaddr(dst_buf, 0) + ctx->vpu_header_size[0] +
1104 ctx->vpu_header_size[1], &ctx->vpu_header[2][0],
1105 ctx->vpu_header_size[2]);
1106 } else {
1107 pic_stream_buffer_addr =
1108 vb2_dma_contig_plane_dma_addr(dst_buf, 0);
1109 pic_stream_buffer_size = CODA_MAX_FRAME_SIZE;
1110 }
1111
1112 if (src_buf->v4l2_buf.flags & V4L2_BUF_FLAG_KEYFRAME) {
1113 force_ipicture = 1;
1114 switch (dst_fourcc) {
1115 case V4L2_PIX_FMT_H264:
1116 quant_param = ctx->params.h264_intra_qp;
1117 break;
1118 case V4L2_PIX_FMT_MPEG4:
1119 quant_param = ctx->params.mpeg4_intra_qp;
1120 break;
1121 default:
1122 v4l2_warn(&ctx->dev->v4l2_dev,
1123 "cannot set intra qp, fmt not supported\n");
1124 break;
1125 }
1126 } else {
1127 force_ipicture = 0;
1128 switch (dst_fourcc) {
1129 case V4L2_PIX_FMT_H264:
1130 quant_param = ctx->params.h264_inter_qp;
1131 break;
1132 case V4L2_PIX_FMT_MPEG4:
1133 quant_param = ctx->params.mpeg4_inter_qp;
1134 break;
1135 default:
1136 v4l2_warn(&ctx->dev->v4l2_dev,
1137 "cannot set inter qp, fmt not supported\n");
1138 break;
1139 }
1140 }
1141
1142 /* submit */
Philipp Zabel8f35c7b2012-07-09 04:25:52 -0300[diff] [blame]1143 coda_write(dev, CODA_ROT_MIR_ENABLE | ctx->params.rot_mode, CODA_CMD_ENC_PIC_ROT_MODE);
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]1144 coda_write(dev, quant_param, CODA_CMD_ENC_PIC_QS);
1145
1146
1147 picture_y = vb2_dma_contig_plane_dma_addr(src_buf, 0);
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]1148 switch (q_data_src->fourcc) {
1149 case V4L2_PIX_FMT_YVU420:
1150 /* Switch Cb and Cr for YVU420 format */
1151 picture_cr = picture_y + q_data_src->width * q_data_src->height;
1152 picture_cb = picture_cr + q_data_src->width / 2 *
1153 q_data_src->height / 2;
1154 break;
1155 case V4L2_PIX_FMT_YUV420:
1156 default:
1157 picture_cb = picture_y + q_data_src->width * q_data_src->height;
1158 picture_cr = picture_cb + q_data_src->width / 2 *
1159 q_data_src->height / 2;
1160 break;
1161 }
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]1162
1163 coda_write(dev, picture_y, CODA_CMD_ENC_PIC_SRC_ADDR_Y);
1164 coda_write(dev, picture_cb, CODA_CMD_ENC_PIC_SRC_ADDR_CB);
1165 coda_write(dev, picture_cr, CODA_CMD_ENC_PIC_SRC_ADDR_CR);
1166 coda_write(dev, force_ipicture << 1 & 0x2,
1167 CODA_CMD_ENC_PIC_OPTION);
1168
1169 coda_write(dev, pic_stream_buffer_addr, CODA_CMD_ENC_PIC_BB_START);
1170 coda_write(dev, pic_stream_buffer_size / 1024,
1171 CODA_CMD_ENC_PIC_BB_SIZE);
Philipp Zabel477c1cf2013-06-21 03:55:33 -0300[diff] [blame]1172}
1173
1174static void coda_device_run(void *m2m_priv)
1175{
1176 struct coda_ctx *ctx = m2m_priv;
1177 struct coda_dev *dev = ctx->dev;
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]1178 int ret;
1179
1180 mutex_lock(&ctx->buffer_mutex);
1181
1182 /*
1183 * If streamoff dequeued all buffers before we could get the lock,
1184 * just bail out immediately.
1185 */
1186 if ((!v4l2_m2m_num_src_bufs_ready(ctx->m2m_ctx) &&
1187 ctx->inst_type != CODA_INST_DECODER) ||
1188 !v4l2_m2m_num_dst_bufs_ready(ctx->m2m_ctx)) {
1189 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
1190 "%d: device_run without buffers\n", ctx->idx);
1191 mutex_unlock(&ctx->buffer_mutex);
1192 schedule_work(&ctx->skip_run);
1193 return;
1194 }
Philipp Zabel477c1cf2013-06-21 03:55:33 -0300[diff] [blame]1195
1196 mutex_lock(&dev->coda_mutex);
1197
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]1198 if (ctx->inst_type == CODA_INST_DECODER) {
1199 ret = coda_prepare_decode(ctx);
1200 if (ret < 0) {
1201 mutex_unlock(&dev->coda_mutex);
1202 mutex_unlock(&ctx->buffer_mutex);
1203 /* job_finish scheduled by prepare_decode */
1204 return;
1205 }
1206 } else {
1207 coda_prepare_encode(ctx);
Philipp Zabel10436672012-07-02 09:03:55 -0300[diff] [blame]1208 }
1209
Philipp Zabelc2d22512013-06-21 03:55:28 -0300[diff] [blame]1210 if (dev->devtype->product != CODA_DX6)
1211 coda_write(dev, ctx->iram_info.axi_sram_use,
1212 CODA7_REG_BIT_AXI_SRAM_USE);
1213
Philipp Zabel2fb57f02012-07-25 09:22:07 -0300[diff] [blame]1214 /* 1 second timeout in case CODA locks up */
1215 schedule_delayed_work(&dev->timeout, HZ);
1216
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]1217 if (ctx->inst_type == CODA_INST_DECODER)
1218 coda_kfifo_sync_to_device_full(ctx);
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]1219 coda_command_async(ctx, CODA_COMMAND_PIC_RUN);
1220}
1221
1222static int coda_job_ready(void *m2m_priv)
1223{
1224 struct coda_ctx *ctx = m2m_priv;
1225
1226 /*
1227 * For both 'P' and 'key' frame cases 1 picture
Philipp Zabel9082a7c2013-06-21 03:55:31 -0300[diff] [blame]1228 * and 1 frame are needed. In the decoder case,
1229 * the compressed frame can be in the bitstream.
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]1230 */
Philipp Zabel9082a7c2013-06-21 03:55:31 -0300[diff] [blame]1231 if (!v4l2_m2m_num_src_bufs_ready(ctx->m2m_ctx) &&
1232 ctx->inst_type != CODA_INST_DECODER) {
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]1233 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1234 "not ready: not enough video buffers.\n");
1235 return 0;
1236 }
1237
Philipp Zabel9082a7c2013-06-21 03:55:31 -0300[diff] [blame]1238 if (!v4l2_m2m_num_dst_bufs_ready(ctx->m2m_ctx)) {
1239 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1240 "not ready: not enough video capture buffers.\n");
1241 return 0;
1242 }
1243
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]1244 if (ctx->prescan_failed ||
1245 ((ctx->inst_type == CODA_INST_DECODER) &&
1246 (coda_get_bitstream_payload(ctx) < 512) &&
1247 !(ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG))) {
1248 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1249 "%d: not ready: not enough bitstream data.\n",
1250 ctx->idx);
1251 return 0;
1252 }
1253
Philipp Zabel3e748262013-05-23 10:43:01 -0300[diff] [blame]1254 if (ctx->aborting) {
1255 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1256 "not ready: aborting\n");
1257 return 0;
1258 }
1259
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]1260 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1261 "job ready\n");
1262 return 1;
1263}
1264
1265static void coda_job_abort(void *priv)
1266{
1267 struct coda_ctx *ctx = priv;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]1268
1269 ctx->aborting = 1;
1270
1271 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1272 "Aborting task\n");
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]1273}
1274
1275static void coda_lock(void *m2m_priv)
1276{
1277 struct coda_ctx *ctx = m2m_priv;
1278 struct coda_dev *pcdev = ctx->dev;
1279 mutex_lock(&pcdev->dev_mutex);
1280}
1281
1282static void coda_unlock(void *m2m_priv)
1283{
1284 struct coda_ctx *ctx = m2m_priv;
1285 struct coda_dev *pcdev = ctx->dev;
1286 mutex_unlock(&pcdev->dev_mutex);
1287}
1288
1289static struct v4l2_m2m_ops coda_m2m_ops = {
1290 .device_run = coda_device_run,
1291 .job_ready = coda_job_ready,
1292 .job_abort = coda_job_abort,
1293 .lock = coda_lock,
1294 .unlock = coda_unlock,
1295};
1296
1297static void set_default_params(struct coda_ctx *ctx)
1298{
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]1299 int max_w;
1300 int max_h;
1301
1302 ctx->codec = &ctx->dev->devtype->codecs[0];
1303 max_w = ctx->codec->max_w;
1304 max_h = ctx->codec->max_h;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]1305
1306 ctx->params.codec_mode = CODA_MODE_INVALID;
1307 ctx->colorspace = V4L2_COLORSPACE_REC709;
1308 ctx->params.framerate = 30;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]1309 ctx->aborting = 0;
1310
1311 /* Default formats for output and input queues */
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]1312 ctx->q_data[V4L2_M2M_SRC].fourcc = ctx->codec->src_fourcc;
1313 ctx->q_data[V4L2_M2M_DST].fourcc = ctx->codec->dst_fourcc;
1314 ctx->q_data[V4L2_M2M_SRC].width = max_w;
1315 ctx->q_data[V4L2_M2M_SRC].height = max_h;
1316 ctx->q_data[V4L2_M2M_SRC].sizeimage = (max_w * max_h * 3) / 2;
1317 ctx->q_data[V4L2_M2M_DST].width = max_w;
1318 ctx->q_data[V4L2_M2M_DST].height = max_h;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]1319 ctx->q_data[V4L2_M2M_DST].sizeimage = CODA_MAX_FRAME_SIZE;
1320}
1321
1322/*
1323 * Queue operations
1324 */
1325static int coda_queue_setup(struct vb2_queue *vq,
1326 const struct v4l2_format *fmt,
1327 unsigned int *nbuffers, unsigned int *nplanes,
1328 unsigned int sizes[], void *alloc_ctxs[])
1329{
1330 struct coda_ctx *ctx = vb2_get_drv_priv(vq);
Philipp Zabele34db062012-08-29 08:22:00 -0300[diff] [blame]1331 struct coda_q_data *q_data;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]1332 unsigned int size;
1333
Philipp Zabele34db062012-08-29 08:22:00 -0300[diff] [blame]1334 q_data = get_q_data(ctx, vq->type);
1335 size = q_data->sizeimage;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]1336
1337 *nplanes = 1;
1338 sizes[0] = size;
1339
1340 alloc_ctxs[0] = ctx->dev->alloc_ctx;
1341
1342 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1343 "get %d buffer(s) of size %d each.\n", *nbuffers, size);
1344
1345 return 0;
1346}
1347
1348static int coda_buf_prepare(struct vb2_buffer *vb)
1349{
1350 struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
1351 struct coda_q_data *q_data;
1352
1353 q_data = get_q_data(ctx, vb->vb2_queue->type);
1354
1355 if (vb2_plane_size(vb, 0) < q_data->sizeimage) {
1356 v4l2_warn(&ctx->dev->v4l2_dev,
1357 "%s data will not fit into plane (%lu < %lu)\n",
1358 __func__, vb2_plane_size(vb, 0),
1359 (long)q_data->sizeimage);
1360 return -EINVAL;
1361 }
1362
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]1363 return 0;
1364}
1365
1366static void coda_buf_queue(struct vb2_buffer *vb)
1367{
1368 struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]1369 struct coda_q_data *q_data;
1370
1371 q_data = get_q_data(ctx, vb->vb2_queue->type);
1372
1373 /*
1374 * In the decoder case, immediately try to copy the buffer into the
1375 * bitstream ringbuffer and mark it as ready to be dequeued.
1376 */
1377 if (q_data->fourcc == V4L2_PIX_FMT_H264 &&
1378 vb->vb2_queue->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1379 /*
1380 * For backwards compatiblity, queuing an empty buffer marks
1381 * the stream end
1382 */
1383 if (vb2_get_plane_payload(vb, 0) == 0)
1384 ctx->bit_stream_param |= CODA_BIT_STREAM_END_FLAG;
1385 mutex_lock(&ctx->bitstream_mutex);
1386 v4l2_m2m_buf_queue(ctx->m2m_ctx, vb);
1387 coda_fill_bitstream(ctx);
1388 mutex_unlock(&ctx->bitstream_mutex);
1389 } else {
1390 v4l2_m2m_buf_queue(ctx->m2m_ctx, vb);
1391 }
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]1392}
1393
1394static void coda_wait_prepare(struct vb2_queue *q)
1395{
1396 struct coda_ctx *ctx = vb2_get_drv_priv(q);
1397 coda_unlock(ctx);
1398}
1399
1400static void coda_wait_finish(struct vb2_queue *q)
1401{
1402 struct coda_ctx *ctx = vb2_get_drv_priv(q);
1403 coda_lock(ctx);
1404}
1405
Philipp Zabel86eda902013-05-23 10:42:57 -0300[diff] [blame]1406static void coda_parabuf_write(struct coda_ctx *ctx, int index, u32 value)
1407{
1408 struct coda_dev *dev = ctx->dev;
1409 u32 *p = ctx->parabuf.vaddr;
1410
1411 if (dev->devtype->product == CODA_DX6)
1412 p[index] = value;
1413 else
1414 p[index ^ 1] = value;
1415}
1416
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]1417static int coda_alloc_aux_buf(struct coda_dev *dev,
1418 struct coda_aux_buf *buf, size_t size)
1419{
1420 buf->vaddr = dma_alloc_coherent(&dev->plat_dev->dev, size, &buf->paddr,
1421 GFP_KERNEL);
1422 if (!buf->vaddr)
1423 return -ENOMEM;
1424
1425 buf->size = size;
1426
1427 return 0;
1428}
1429
1430static inline int coda_alloc_context_buf(struct coda_ctx *ctx,
1431 struct coda_aux_buf *buf, size_t size)
1432{
1433 return coda_alloc_aux_buf(ctx->dev, buf, size);
1434}
1435
1436static void coda_free_aux_buf(struct coda_dev *dev,
1437 struct coda_aux_buf *buf)
1438{
1439 if (buf->vaddr) {
1440 dma_free_coherent(&dev->plat_dev->dev, buf->size,
1441 buf->vaddr, buf->paddr);
1442 buf->vaddr = NULL;
1443 buf->size = 0;
1444 }
1445}
1446
1447static void coda_free_framebuffers(struct coda_ctx *ctx)
1448{
1449 int i;
1450
1451 for (i = 0; i < CODA_MAX_FRAMEBUFFERS; i++)
1452 coda_free_aux_buf(ctx->dev, &ctx->internal_frames[i]);
1453}
1454
Philipp Zabelec25f682012-07-20 08:54:29 -0300[diff] [blame]1455static int coda_alloc_framebuffers(struct coda_ctx *ctx, struct coda_q_data *q_data, u32 fourcc)
1456{
1457 struct coda_dev *dev = ctx->dev;
Philipp Zabelec25f682012-07-20 08:54:29 -0300[diff] [blame]1458 int height = q_data->height;
Philipp Zabel86eda902013-05-23 10:42:57 -0300[diff] [blame]1459 dma_addr_t paddr;
1460 int ysize;
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]1461 int ret;
Philipp Zabelec25f682012-07-20 08:54:29 -0300[diff] [blame]1462 int i;
1463
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]1464 if (ctx->codec && ctx->codec->src_fourcc == V4L2_PIX_FMT_H264)
1465 height = round_up(height, 16);
Philipp Zabel86eda902013-05-23 10:42:57 -0300[diff] [blame]1466 ysize = round_up(q_data->width, 8) * height;
1467
Philipp Zabelec25f682012-07-20 08:54:29 -0300[diff] [blame]1468 /* Allocate frame buffers */
Philipp Zabelec25f682012-07-20 08:54:29 -0300[diff] [blame]1469 for (i = 0; i < ctx->num_internal_frames; i++) {
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]1470 size_t size;
1471
1472 size = q_data->sizeimage;
1473 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_H264 &&
1474 dev->devtype->product != CODA_DX6)
Philipp Zabel86eda902013-05-23 10:42:57 -0300[diff] [blame]1475 ctx->internal_frames[i].size += ysize/4;
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]1476 ret = coda_alloc_context_buf(ctx, &ctx->internal_frames[i], size);
1477 if (ret < 0) {
Philipp Zabelec25f682012-07-20 08:54:29 -0300[diff] [blame]1478 coda_free_framebuffers(ctx);
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]1479 return ret;
Philipp Zabelec25f682012-07-20 08:54:29 -0300[diff] [blame]1480 }
1481 }
1482
1483 /* Register frame buffers in the parameter buffer */
Philipp Zabel86eda902013-05-23 10:42:57 -0300[diff] [blame]1484 for (i = 0; i < ctx->num_internal_frames; i++) {
1485 paddr = ctx->internal_frames[i].paddr;
1486 coda_parabuf_write(ctx, i * 3 + 0, paddr); /* Y */
1487 coda_parabuf_write(ctx, i * 3 + 1, paddr + ysize); /* Cb */
1488 coda_parabuf_write(ctx, i * 3 + 2, paddr + ysize + ysize/4); /* Cr */
Philipp Zabelec25f682012-07-20 08:54:29 -0300[diff] [blame]1489
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]1490 /* mvcol buffer for h.264 */
1491 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_H264 &&
1492 dev->devtype->product != CODA_DX6)
1493 coda_parabuf_write(ctx, 96 + i,
1494 ctx->internal_frames[i].paddr +
1495 ysize + ysize/4 + ysize/4);
Philipp Zabelec25f682012-07-20 08:54:29 -0300[diff] [blame]1496 }
1497
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]1498 /* mvcol buffer for mpeg4 */
1499 if ((dev->devtype->product != CODA_DX6) &&
1500 (ctx->codec->src_fourcc == V4L2_PIX_FMT_MPEG4))
1501 coda_parabuf_write(ctx, 97, ctx->internal_frames[i].paddr +
1502 ysize + ysize/4 + ysize/4);
1503
Philipp Zabelec25f682012-07-20 08:54:29 -0300[diff] [blame]1504 return 0;
1505}
1506
Javier Martin3f3f5c72012-10-29 05:20:29 -0300[diff] [blame]1507static int coda_h264_padding(int size, char *p)
1508{
Javier Martin3f3f5c72012-10-29 05:20:29 -0300[diff] [blame]1509 int nal_size;
1510 int diff;
1511
Javier Martin832fbb52012-10-29 08:34:59 -0300[diff] [blame]1512 diff = size - (size & ~0x7);
Javier Martin3f3f5c72012-10-29 05:20:29 -0300[diff] [blame]1513 if (diff == 0)
1514 return 0;
1515
Javier Martin832fbb52012-10-29 08:34:59 -0300[diff] [blame]1516 nal_size = coda_filler_size[diff];
Javier Martin3f3f5c72012-10-29 05:20:29 -0300[diff] [blame]1517 memcpy(p, coda_filler_nal, nal_size);
1518
1519 /* Add rbsp stop bit and trailing at the end */
1520 *(p + nal_size - 1) = 0x80;
1521
1522 return nal_size;
1523}
1524
Philipp Zabelc2d22512013-06-21 03:55:28 -0300[diff] [blame]1525static void coda_setup_iram(struct coda_ctx *ctx)
1526{
1527 struct coda_iram_info *iram_info = &ctx->iram_info;
1528 struct coda_dev *dev = ctx->dev;
1529 int ipacdc_size;
1530 int bitram_size;
1531 int dbk_size;
Philipp Zabel8358e762013-06-21 03:55:32 -0300[diff] [blame]1532 int ovl_size;
Philipp Zabelc2d22512013-06-21 03:55:28 -0300[diff] [blame]1533 int mb_width;
1534 int me_size;
1535 int size;
1536
1537 memset(iram_info, 0, sizeof(*iram_info));
1538 size = dev->iram_size;
1539
1540 if (dev->devtype->product == CODA_DX6)
1541 return;
1542
1543 if (ctx->inst_type == CODA_INST_ENCODER) {
1544 struct coda_q_data *q_data_src;
1545
1546 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1547 mb_width = DIV_ROUND_UP(q_data_src->width, 16);
1548
1549 /* Prioritize in case IRAM is too small for everything */
1550 me_size = round_up(round_up(q_data_src->width, 16) * 36 + 2048,
1551 1024);
1552 iram_info->search_ram_size = me_size;
1553 if (size >= iram_info->search_ram_size) {
1554 if (dev->devtype->product == CODA_7541)
1555 iram_info->axi_sram_use |= CODA7_USE_HOST_ME_ENABLE;
1556 iram_info->search_ram_paddr = dev->iram_paddr;
1557 size -= iram_info->search_ram_size;
1558 } else {
1559 pr_err("IRAM is smaller than the search ram size\n");
1560 goto out;
1561 }
1562
1563 /* Only H.264BP and H.263P3 are considered */
1564 dbk_size = round_up(128 * mb_width, 1024);
1565 if (size >= dbk_size) {
1566 iram_info->axi_sram_use |= CODA7_USE_HOST_DBK_ENABLE;
1567 iram_info->buf_dbk_y_use = dev->iram_paddr +
1568 iram_info->search_ram_size;
1569 iram_info->buf_dbk_c_use = iram_info->buf_dbk_y_use +
1570 dbk_size / 2;
1571 size -= dbk_size;
1572 } else {
1573 goto out;
1574 }
1575
1576 bitram_size = round_up(128 * mb_width, 1024);
1577 if (size >= bitram_size) {
1578 iram_info->axi_sram_use |= CODA7_USE_HOST_BIT_ENABLE;
1579 iram_info->buf_bit_use = iram_info->buf_dbk_c_use +
1580 dbk_size / 2;
1581 size -= bitram_size;
1582 } else {
1583 goto out;
1584 }
1585
1586 ipacdc_size = round_up(128 * mb_width, 1024);
1587 if (size >= ipacdc_size) {
1588 iram_info->axi_sram_use |= CODA7_USE_HOST_IP_ENABLE;
1589 iram_info->buf_ip_ac_dc_use = iram_info->buf_bit_use +
1590 bitram_size;
1591 size -= ipacdc_size;
1592 }
1593
Philipp Zabel8358e762013-06-21 03:55:32 -0300[diff] [blame]1594 /* OVL and BTP disabled for encoder */
1595 } else if (ctx->inst_type == CODA_INST_DECODER) {
1596 struct coda_q_data *q_data_dst;
1597 int mb_height;
1598
1599 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1600 mb_width = DIV_ROUND_UP(q_data_dst->width, 16);
1601 mb_height = DIV_ROUND_UP(q_data_dst->height, 16);
1602
1603 dbk_size = round_up(256 * mb_width, 1024);
1604 if (size >= dbk_size) {
1605 iram_info->axi_sram_use |= CODA7_USE_HOST_DBK_ENABLE;
1606 iram_info->buf_dbk_y_use = dev->iram_paddr;
1607 iram_info->buf_dbk_c_use = dev->iram_paddr +
1608 dbk_size / 2;
1609 size -= dbk_size;
1610 } else {
1611 goto out;
1612 }
1613
1614 bitram_size = round_up(128 * mb_width, 1024);
1615 if (size >= bitram_size) {
1616 iram_info->axi_sram_use |= CODA7_USE_HOST_BIT_ENABLE;
1617 iram_info->buf_bit_use = iram_info->buf_dbk_c_use +
1618 dbk_size / 2;
1619 size -= bitram_size;
1620 } else {
1621 goto out;
1622 }
1623
1624 ipacdc_size = round_up(128 * mb_width, 1024);
1625 if (size >= ipacdc_size) {
1626 iram_info->axi_sram_use |= CODA7_USE_HOST_IP_ENABLE;
1627 iram_info->buf_ip_ac_dc_use = iram_info->buf_bit_use +
1628 bitram_size;
1629 size -= ipacdc_size;
1630 } else {
1631 goto out;
1632 }
1633
1634 ovl_size = round_up(80 * mb_width, 1024);
Philipp Zabelc2d22512013-06-21 03:55:28 -0300[diff] [blame]1635 }
1636
1637out:
1638 switch (dev->devtype->product) {
1639 case CODA_DX6:
1640 break;
1641 case CODA_7541:
1642 /* i.MX53 uses secondary AXI for IRAM access */
1643 if (iram_info->axi_sram_use & CODA7_USE_HOST_BIT_ENABLE)
1644 iram_info->axi_sram_use |= CODA7_USE_BIT_ENABLE;
1645 if (iram_info->axi_sram_use & CODA7_USE_HOST_IP_ENABLE)
1646 iram_info->axi_sram_use |= CODA7_USE_IP_ENABLE;
1647 if (iram_info->axi_sram_use & CODA7_USE_HOST_DBK_ENABLE)
1648 iram_info->axi_sram_use |= CODA7_USE_DBK_ENABLE;
1649 if (iram_info->axi_sram_use & CODA7_USE_HOST_OVL_ENABLE)
1650 iram_info->axi_sram_use |= CODA7_USE_OVL_ENABLE;
1651 if (iram_info->axi_sram_use & CODA7_USE_HOST_ME_ENABLE)
1652 iram_info->axi_sram_use |= CODA7_USE_ME_ENABLE;
1653 }
1654
1655 if (!(iram_info->axi_sram_use & CODA7_USE_HOST_IP_ENABLE))
1656 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1657 "IRAM smaller than needed\n");
1658
1659 if (dev->devtype->product == CODA_7541) {
1660 /* TODO - Enabling these causes picture errors on CODA7541 */
Philipp Zabel8358e762013-06-21 03:55:32 -0300[diff] [blame]1661 if (ctx->inst_type == CODA_INST_DECODER) {
1662 /* fw 1.4.50 */
1663 iram_info->axi_sram_use &= ~(CODA7_USE_HOST_IP_ENABLE |
1664 CODA7_USE_IP_ENABLE);
1665 } else {
1666 /* fw 13.4.29 */
Philipp Zabelc2d22512013-06-21 03:55:28 -0300[diff] [blame]1667 iram_info->axi_sram_use &= ~(CODA7_USE_HOST_IP_ENABLE |
1668 CODA7_USE_HOST_DBK_ENABLE |
1669 CODA7_USE_IP_ENABLE |
1670 CODA7_USE_DBK_ENABLE);
1671 }
1672 }
1673}
1674
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]1675static void coda_free_context_buffers(struct coda_ctx *ctx)
1676{
1677 struct coda_dev *dev = ctx->dev;
1678
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]1679 coda_free_aux_buf(dev, &ctx->slicebuf);
1680 coda_free_aux_buf(dev, &ctx->psbuf);
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]1681 if (dev->devtype->product != CODA_DX6)
1682 coda_free_aux_buf(dev, &ctx->workbuf);
1683}
1684
1685static int coda_alloc_context_buffers(struct coda_ctx *ctx,
1686 struct coda_q_data *q_data)
1687{
1688 struct coda_dev *dev = ctx->dev;
1689 size_t size;
1690 int ret;
1691
1692 switch (dev->devtype->product) {
1693 case CODA_7541:
1694 size = CODA7_WORK_BUF_SIZE;
1695 break;
1696 default:
1697 return 0;
1698 }
1699
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]1700 if (ctx->psbuf.vaddr) {
1701 v4l2_err(&dev->v4l2_dev, "psmembuf still allocated\n");
1702 return -EBUSY;
1703 }
1704 if (ctx->slicebuf.vaddr) {
1705 v4l2_err(&dev->v4l2_dev, "slicebuf still allocated\n");
1706 return -EBUSY;
1707 }
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]1708 if (ctx->workbuf.vaddr) {
1709 v4l2_err(&dev->v4l2_dev, "context buffer still allocated\n");
1710 ret = -EBUSY;
1711 return -ENOMEM;
1712 }
1713
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]1714 if (q_data->fourcc == V4L2_PIX_FMT_H264) {
1715 /* worst case slice size */
1716 size = (DIV_ROUND_UP(q_data->width, 16) *
1717 DIV_ROUND_UP(q_data->height, 16)) * 3200 / 8 + 512;
1718 ret = coda_alloc_context_buf(ctx, &ctx->slicebuf, size);
1719 if (ret < 0) {
1720 v4l2_err(&dev->v4l2_dev, "failed to allocate %d byte slice buffer",
1721 ctx->slicebuf.size);
1722 return ret;
1723 }
1724 }
1725
1726 if (dev->devtype->product == CODA_7541) {
1727 ret = coda_alloc_context_buf(ctx, &ctx->psbuf, CODA7_PS_BUF_SIZE);
1728 if (ret < 0) {
1729 v4l2_err(&dev->v4l2_dev, "failed to allocate psmem buffer");
1730 goto err;
1731 }
1732 }
1733
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]1734 ret = coda_alloc_context_buf(ctx, &ctx->workbuf, size);
1735 if (ret < 0) {
1736 v4l2_err(&dev->v4l2_dev, "failed to allocate %d byte context buffer",
1737 ctx->workbuf.size);
1738 goto err;
1739 }
1740
1741 return 0;
1742
1743err:
1744 coda_free_context_buffers(ctx);
1745 return ret;
1746}
1747
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]1748static int coda_start_decoding(struct coda_ctx *ctx)
1749{
1750 struct coda_q_data *q_data_src, *q_data_dst;
1751 u32 bitstream_buf, bitstream_size;
1752 struct coda_dev *dev = ctx->dev;
1753 int width, height;
1754 u32 src_fourcc;
1755 u32 val;
1756 int ret;
1757
1758 /* Start decoding */
1759 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1760 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1761 bitstream_buf = ctx->bitstream.paddr;
1762 bitstream_size = ctx->bitstream.size;
1763 src_fourcc = q_data_src->fourcc;
1764
1765 coda_write(dev, ctx->parabuf.paddr, CODA_REG_BIT_PARA_BUF_ADDR);
1766
1767 /* Update coda bitstream read and write pointers from kfifo */
1768 coda_kfifo_sync_to_device_full(ctx);
1769
1770 ctx->display_idx = -1;
1771 ctx->frm_dis_flg = 0;
1772 coda_write(dev, 0, CODA_REG_BIT_FRM_DIS_FLG(ctx->reg_idx));
1773
1774 coda_write(dev, CODA_BIT_DEC_SEQ_INIT_ESCAPE,
1775 CODA_REG_BIT_BIT_STREAM_PARAM);
1776
1777 coda_write(dev, bitstream_buf, CODA_CMD_DEC_SEQ_BB_START);
1778 coda_write(dev, bitstream_size / 1024, CODA_CMD_DEC_SEQ_BB_SIZE);
1779 val = 0;
1780 if (dev->devtype->product == CODA_7541)
1781 val |= CODA_REORDER_ENABLE;
1782 coda_write(dev, val, CODA_CMD_DEC_SEQ_OPTION);
1783
1784 ctx->params.codec_mode = ctx->codec->mode;
1785 ctx->params.codec_mode_aux = 0;
1786 if (src_fourcc == V4L2_PIX_FMT_H264) {
1787 if (dev->devtype->product == CODA_7541) {
1788 coda_write(dev, ctx->psbuf.paddr,
1789 CODA_CMD_DEC_SEQ_PS_BB_START);
1790 coda_write(dev, (CODA7_PS_BUF_SIZE / 1024),
1791 CODA_CMD_DEC_SEQ_PS_BB_SIZE);
1792 }
1793 }
1794
1795 if (coda_command_sync(ctx, CODA_COMMAND_SEQ_INIT)) {
1796 v4l2_err(&dev->v4l2_dev, "CODA_COMMAND_SEQ_INIT timeout\n");
1797 coda_write(dev, 0, CODA_REG_BIT_BIT_STREAM_PARAM);
1798 return -ETIMEDOUT;
1799 }
1800
1801 /* Update kfifo out pointer from coda bitstream read pointer */
1802 coda_kfifo_sync_from_device(ctx);
1803
1804 coda_write(dev, 0, CODA_REG_BIT_BIT_STREAM_PARAM);
1805
1806 if (coda_read(dev, CODA_RET_DEC_SEQ_SUCCESS) == 0) {
1807 v4l2_err(&dev->v4l2_dev,
1808 "CODA_COMMAND_SEQ_INIT failed, error code = %d\n",
1809 coda_read(dev, CODA_RET_DEC_SEQ_ERR_REASON));
1810 return -EAGAIN;
1811 }
1812
1813 val = coda_read(dev, CODA_RET_DEC_SEQ_SRC_SIZE);
1814 if (dev->devtype->product == CODA_DX6) {
1815 width = (val >> CODADX6_PICWIDTH_OFFSET) & CODADX6_PICWIDTH_MASK;
1816 height = val & CODADX6_PICHEIGHT_MASK;
1817 } else {
1818 width = (val >> CODA7_PICWIDTH_OFFSET) & CODA7_PICWIDTH_MASK;
1819 height = val & CODA7_PICHEIGHT_MASK;
1820 }
1821
1822 if (width > q_data_dst->width || height > q_data_dst->height) {
1823 v4l2_err(&dev->v4l2_dev, "stream is %dx%d, not %dx%d\n",
1824 width, height, q_data_dst->width, q_data_dst->height);
1825 return -EINVAL;
1826 }
1827
1828 width = round_up(width, 16);
1829 height = round_up(height, 16);
1830
1831 v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "%s instance %d now: %dx%d\n",
1832 __func__, ctx->idx, width, height);
1833
1834 ctx->num_internal_frames = coda_read(dev, CODA_RET_DEC_SEQ_FRAME_NEED) + 1;
1835 if (ctx->num_internal_frames > CODA_MAX_FRAMEBUFFERS) {
1836 v4l2_err(&dev->v4l2_dev,
1837 "not enough framebuffers to decode (%d < %d)\n",
1838 CODA_MAX_FRAMEBUFFERS, ctx->num_internal_frames);
1839 return -EINVAL;
1840 }
1841
1842 ret = coda_alloc_framebuffers(ctx, q_data_dst, src_fourcc);
1843 if (ret < 0)
1844 return ret;
1845
1846 /* Tell the decoder how many frame buffers we allocated. */
1847 coda_write(dev, ctx->num_internal_frames, CODA_CMD_SET_FRAME_BUF_NUM);
1848 coda_write(dev, width, CODA_CMD_SET_FRAME_BUF_STRIDE);
1849
1850 if (dev->devtype->product != CODA_DX6) {
1851 /* Set secondary AXI IRAM */
1852 coda_setup_iram(ctx);
1853
1854 coda_write(dev, ctx->iram_info.buf_bit_use,
1855 CODA7_CMD_SET_FRAME_AXI_BIT_ADDR);
1856 coda_write(dev, ctx->iram_info.buf_ip_ac_dc_use,
1857 CODA7_CMD_SET_FRAME_AXI_IPACDC_ADDR);
1858 coda_write(dev, ctx->iram_info.buf_dbk_y_use,
1859 CODA7_CMD_SET_FRAME_AXI_DBKY_ADDR);
1860 coda_write(dev, ctx->iram_info.buf_dbk_c_use,
1861 CODA7_CMD_SET_FRAME_AXI_DBKC_ADDR);
1862 coda_write(dev, ctx->iram_info.buf_ovl_use,
1863 CODA7_CMD_SET_FRAME_AXI_OVL_ADDR);
1864 }
1865
1866 if (src_fourcc == V4L2_PIX_FMT_H264) {
1867 coda_write(dev, ctx->slicebuf.paddr,
1868 CODA_CMD_SET_FRAME_SLICE_BB_START);
1869 coda_write(dev, ctx->slicebuf.size / 1024,
1870 CODA_CMD_SET_FRAME_SLICE_BB_SIZE);
1871 }
1872
1873 if (dev->devtype->product == CODA_7541) {
1874 int max_mb_x = 1920 / 16;
1875 int max_mb_y = 1088 / 16;
1876 int max_mb_num = max_mb_x * max_mb_y;
1877 coda_write(dev, max_mb_num << 16 | max_mb_x << 8 | max_mb_y,
1878 CODA7_CMD_SET_FRAME_MAX_DEC_SIZE);
1879 }
1880
1881 if (coda_command_sync(ctx, CODA_COMMAND_SET_FRAME_BUF)) {
1882 v4l2_err(&ctx->dev->v4l2_dev,
1883 "CODA_COMMAND_SET_FRAME_BUF timeout\n");
1884 return -ETIMEDOUT;
1885 }
1886
1887 return 0;
1888}
1889
Philipp Zabeld35167a2013-05-23 10:42:59 -0300[diff] [blame]1890static int coda_encode_header(struct coda_ctx *ctx, struct vb2_buffer *buf,
1891 int header_code, u8 *header, int *size)
1892{
1893 struct coda_dev *dev = ctx->dev;
1894 int ret;
1895
1896 coda_write(dev, vb2_dma_contig_plane_dma_addr(buf, 0),
1897 CODA_CMD_ENC_HEADER_BB_START);
1898 coda_write(dev, vb2_plane_size(buf, 0), CODA_CMD_ENC_HEADER_BB_SIZE);
1899 coda_write(dev, header_code, CODA_CMD_ENC_HEADER_CODE);
1900 ret = coda_command_sync(ctx, CODA_COMMAND_ENCODE_HEADER);
1901 if (ret < 0) {
1902 v4l2_err(&dev->v4l2_dev, "CODA_COMMAND_ENCODE_HEADER timeout\n");
1903 return ret;
1904 }
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]1905 *size = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->reg_idx)) -
Philipp Zabeld35167a2013-05-23 10:42:59 -0300[diff] [blame]1906 coda_read(dev, CODA_CMD_ENC_HEADER_BB_START);
1907 memcpy(header, vb2_plane_vaddr(buf, 0), *size);
1908
1909 return 0;
1910}
1911
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]1912static int coda_start_streaming(struct vb2_queue *q, unsigned int count)
1913{
1914 struct coda_ctx *ctx = vb2_get_drv_priv(q);
1915 struct v4l2_device *v4l2_dev = &ctx->dev->v4l2_dev;
1916 u32 bitstream_buf, bitstream_size;
1917 struct coda_dev *dev = ctx->dev;
1918 struct coda_q_data *q_data_src, *q_data_dst;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]1919 struct vb2_buffer *buf;
Philipp Zabelec25f682012-07-20 08:54:29 -0300[diff] [blame]1920 u32 dst_fourcc;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]1921 u32 value;
Philipp Zabeld35167a2013-05-23 10:42:59 -0300[diff] [blame]1922 int ret = 0;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]1923
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]1924 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]1925 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1926 if (q_data_src->fourcc == V4L2_PIX_FMT_H264) {
1927 if (coda_get_bitstream_payload(ctx) < 512)
1928 return -EINVAL;
1929 } else {
1930 if (count < 1)
1931 return -EINVAL;
1932 }
1933
1934 ctx->streamon_out = 1;
1935
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]1936 if (coda_format_is_yuv(q_data_src->fourcc))
1937 ctx->inst_type = CODA_INST_ENCODER;
1938 else
1939 ctx->inst_type = CODA_INST_DECODER;
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]1940 } else {
1941 if (count < 1)
1942 return -EINVAL;
1943
1944 ctx->streamon_cap = 1;
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]1945 }
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]1946
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]1947 /* Don't start the coda unless both queues are on */
1948 if (!(ctx->streamon_out & ctx->streamon_cap))
1949 return 0;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]1950
Philipp Zabeleb107512013-09-30 10:34:45 -0300[diff] [blame]1951 /* Allow decoder device_run with no new buffers queued */
1952 if (ctx->inst_type == CODA_INST_DECODER)
1953 v4l2_m2m_set_src_buffered(ctx->m2m_ctx, true);
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]1954
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]1955 ctx->gopcounter = ctx->params.gop_size - 1;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]1956 buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
1957 bitstream_buf = vb2_dma_contig_plane_dma_addr(buf, 0);
1958 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1959 bitstream_size = q_data_dst->sizeimage;
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]1960 dst_fourcc = q_data_dst->fourcc;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]1961
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]1962 ctx->codec = coda_find_codec(ctx->dev, q_data_src->fourcc,
1963 q_data_dst->fourcc);
1964 if (!ctx->codec) {
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]1965 v4l2_err(v4l2_dev, "couldn't tell instance type.\n");
1966 return -EINVAL;
1967 }
1968
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]1969 /* Allocate per-instance buffers */
1970 ret = coda_alloc_context_buffers(ctx, q_data_src);
1971 if (ret < 0)
1972 return ret;
1973
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]1974 if (ctx->inst_type == CODA_INST_DECODER) {
1975 mutex_lock(&dev->coda_mutex);
1976 ret = coda_start_decoding(ctx);
1977 mutex_unlock(&dev->coda_mutex);
1978 if (ret == -EAGAIN) {
1979 return 0;
1980 } else if (ret < 0) {
1981 return ret;
1982 } else {
1983 ctx->initialized = 1;
1984 return 0;
1985 }
1986 }
1987
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]1988 if (!coda_is_initialized(dev)) {
1989 v4l2_err(v4l2_dev, "coda is not initialized.\n");
1990 return -EFAULT;
1991 }
Philipp Zabelfcb62822013-05-23 10:43:00 -0300[diff] [blame]1992
1993 mutex_lock(&dev->coda_mutex);
1994
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]1995 coda_write(dev, ctx->parabuf.paddr, CODA_REG_BIT_PARA_BUF_ADDR);
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]1996 coda_write(dev, bitstream_buf, CODA_REG_BIT_RD_PTR(ctx->reg_idx));
1997 coda_write(dev, bitstream_buf, CODA_REG_BIT_WR_PTR(ctx->reg_idx));
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]1998 switch (dev->devtype->product) {
1999 case CODA_DX6:
2000 coda_write(dev, CODADX6_STREAM_BUF_DYNALLOC_EN |
2001 CODADX6_STREAM_BUF_PIC_RESET, CODA_REG_BIT_STREAM_CTRL);
2002 break;
2003 default:
2004 coda_write(dev, CODA7_STREAM_BUF_DYNALLOC_EN |
2005 CODA7_STREAM_BUF_PIC_RESET, CODA_REG_BIT_STREAM_CTRL);
2006 }
2007
Philipp Zabel10436672012-07-02 09:03:55 -0300[diff] [blame]2008 if (dev->devtype->product == CODA_DX6) {
2009 /* Configure the coda */
2010 coda_write(dev, dev->iram_paddr, CODADX6_REG_BIT_SEARCH_RAM_BASE_ADDR);
2011 }
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2012
2013 /* Could set rotation here if needed */
2014 switch (dev->devtype->product) {
2015 case CODA_DX6:
2016 value = (q_data_src->width & CODADX6_PICWIDTH_MASK) << CODADX6_PICWIDTH_OFFSET;
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]2017 value |= (q_data_src->height & CODADX6_PICHEIGHT_MASK) << CODA_PICHEIGHT_OFFSET;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2018 break;
2019 default:
2020 value = (q_data_src->width & CODA7_PICWIDTH_MASK) << CODA7_PICWIDTH_OFFSET;
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]2021 value |= (q_data_src->height & CODA7_PICHEIGHT_MASK) << CODA_PICHEIGHT_OFFSET;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2022 }
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2023 coda_write(dev, value, CODA_CMD_ENC_SEQ_SRC_SIZE);
2024 coda_write(dev, ctx->params.framerate,
2025 CODA_CMD_ENC_SEQ_SRC_F_RATE);
2026
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]2027 ctx->params.codec_mode = ctx->codec->mode;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2028 switch (dst_fourcc) {
2029 case V4L2_PIX_FMT_MPEG4:
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2030 coda_write(dev, CODA_STD_MPEG4, CODA_CMD_ENC_SEQ_COD_STD);
2031 coda_write(dev, 0, CODA_CMD_ENC_SEQ_MP4_PARA);
2032 break;
2033 case V4L2_PIX_FMT_H264:
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2034 coda_write(dev, CODA_STD_H264, CODA_CMD_ENC_SEQ_COD_STD);
2035 coda_write(dev, 0, CODA_CMD_ENC_SEQ_264_PARA);
2036 break;
2037 default:
2038 v4l2_err(v4l2_dev,
2039 "dst format (0x%08x) invalid.\n", dst_fourcc);
Philipp Zabelfcb62822013-05-23 10:43:00 -0300[diff] [blame]2040 ret = -EINVAL;
2041 goto out;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2042 }
2043
Philipp Zabelc566c782012-08-08 11:59:38 -0300[diff] [blame]2044 switch (ctx->params.slice_mode) {
2045 case V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_SINGLE:
2046 value = 0;
2047 break;
2048 case V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_MB:
2049 value = (ctx->params.slice_max_mb & CODA_SLICING_SIZE_MASK) << CODA_SLICING_SIZE_OFFSET;
2050 value |= (1 & CODA_SLICING_UNIT_MASK) << CODA_SLICING_UNIT_OFFSET;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2051 value |= 1 & CODA_SLICING_MODE_MASK;
Philipp Zabelc566c782012-08-08 11:59:38 -0300[diff] [blame]2052 break;
2053 case V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_BYTES:
2054 value = (ctx->params.slice_max_bits & CODA_SLICING_SIZE_MASK) << CODA_SLICING_SIZE_OFFSET;
2055 value |= (0 & CODA_SLICING_UNIT_MASK) << CODA_SLICING_UNIT_OFFSET;
2056 value |= 1 & CODA_SLICING_MODE_MASK;
2057 break;
2058 }
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2059 coda_write(dev, value, CODA_CMD_ENC_SEQ_SLICE_MODE);
Philipp Zabelc566c782012-08-08 11:59:38 -0300[diff] [blame]2060 value = ctx->params.gop_size & CODA_GOP_SIZE_MASK;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2061 coda_write(dev, value, CODA_CMD_ENC_SEQ_GOP_SIZE);
2062
2063 if (ctx->params.bitrate) {
2064 /* Rate control enabled */
2065 value = (ctx->params.bitrate & CODA_RATECONTROL_BITRATE_MASK) << CODA_RATECONTROL_BITRATE_OFFSET;
2066 value |= 1 & CODA_RATECONTROL_ENABLE_MASK;
2067 } else {
2068 value = 0;
2069 }
2070 coda_write(dev, value, CODA_CMD_ENC_SEQ_RC_PARA);
2071
2072 coda_write(dev, 0, CODA_CMD_ENC_SEQ_RC_BUF_SIZE);
2073 coda_write(dev, 0, CODA_CMD_ENC_SEQ_INTRA_REFRESH);
2074
2075 coda_write(dev, bitstream_buf, CODA_CMD_ENC_SEQ_BB_START);
2076 coda_write(dev, bitstream_size / 1024, CODA_CMD_ENC_SEQ_BB_SIZE);
2077
2078 /* set default gamma */
2079 value = (CODA_DEFAULT_GAMMA & CODA_GAMMA_MASK) << CODA_GAMMA_OFFSET;
2080 coda_write(dev, value, CODA_CMD_ENC_SEQ_RC_GAMMA);
2081
Philipp Zabelfb1fcf12013-05-23 10:42:53 -0300[diff] [blame]2082 if (CODA_DEFAULT_GAMMA > 0) {
2083 if (dev->devtype->product == CODA_DX6)
2084 value = 1 << CODADX6_OPTION_GAMMA_OFFSET;
2085 else
2086 value = 1 << CODA7_OPTION_GAMMA_OFFSET;
2087 } else {
2088 value = 0;
2089 }
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2090 coda_write(dev, value, CODA_CMD_ENC_SEQ_OPTION);
2091
Philipp Zabelc2d22512013-06-21 03:55:28 -0300[diff] [blame]2092 coda_setup_iram(ctx);
2093
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2094 if (dst_fourcc == V4L2_PIX_FMT_H264) {
Philipp Zabel10436672012-07-02 09:03:55 -0300[diff] [blame]2095 if (dev->devtype->product == CODA_DX6) {
Philipp Zabel0fd84dc2013-09-30 10:34:47 -0300[diff] [blame]2096 value = FMO_SLICE_SAVE_BUF_SIZE << 7;
Philipp Zabel10436672012-07-02 09:03:55 -0300[diff] [blame]2097 coda_write(dev, value, CODADX6_CMD_ENC_SEQ_FMO);
2098 } else {
Philipp Zabelc2d22512013-06-21 03:55:28 -0300[diff] [blame]2099 coda_write(dev, ctx->iram_info.search_ram_paddr,
2100 CODA7_CMD_ENC_SEQ_SEARCH_BASE);
2101 coda_write(dev, ctx->iram_info.search_ram_size,
2102 CODA7_CMD_ENC_SEQ_SEARCH_SIZE);
Philipp Zabel10436672012-07-02 09:03:55 -0300[diff] [blame]2103 }
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2104 }
2105
Philipp Zabelfcb62822013-05-23 10:43:00 -0300[diff] [blame]2106 ret = coda_command_sync(ctx, CODA_COMMAND_SEQ_INIT);
2107 if (ret < 0) {
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2108 v4l2_err(v4l2_dev, "CODA_COMMAND_SEQ_INIT timeout\n");
Philipp Zabelfcb62822013-05-23 10:43:00 -0300[diff] [blame]2109 goto out;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2110 }
2111
Philipp Zabelfcb62822013-05-23 10:43:00 -0300[diff] [blame]2112 if (coda_read(dev, CODA_RET_ENC_SEQ_SUCCESS) == 0) {
2113 v4l2_err(v4l2_dev, "CODA_COMMAND_SEQ_INIT failed\n");
2114 ret = -EFAULT;
2115 goto out;
2116 }
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2117
Philipp Zabel20397492013-06-21 03:55:29 -0300[diff] [blame]2118 ctx->num_internal_frames = 2;
Philipp Zabelec25f682012-07-20 08:54:29 -0300[diff] [blame]2119 ret = coda_alloc_framebuffers(ctx, q_data_src, dst_fourcc);
Philipp Zabelfcb62822013-05-23 10:43:00 -0300[diff] [blame]2120 if (ret < 0) {
2121 v4l2_err(v4l2_dev, "failed to allocate framebuffers\n");
2122 goto out;
2123 }
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2124
Philipp Zabelec25f682012-07-20 08:54:29 -0300[diff] [blame]2125 coda_write(dev, ctx->num_internal_frames, CODA_CMD_SET_FRAME_BUF_NUM);
Philipp Zabel10436672012-07-02 09:03:55 -0300[diff] [blame]2126 coda_write(dev, round_up(q_data_src->width, 8), CODA_CMD_SET_FRAME_BUF_STRIDE);
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]2127 if (dev->devtype->product == CODA_7541)
2128 coda_write(dev, round_up(q_data_src->width, 8),
2129 CODA7_CMD_SET_FRAME_SOURCE_BUF_STRIDE);
Philipp Zabel10436672012-07-02 09:03:55 -0300[diff] [blame]2130 if (dev->devtype->product != CODA_DX6) {
Philipp Zabelc2d22512013-06-21 03:55:28 -0300[diff] [blame]2131 coda_write(dev, ctx->iram_info.buf_bit_use,
2132 CODA7_CMD_SET_FRAME_AXI_BIT_ADDR);
2133 coda_write(dev, ctx->iram_info.buf_ip_ac_dc_use,
2134 CODA7_CMD_SET_FRAME_AXI_IPACDC_ADDR);
2135 coda_write(dev, ctx->iram_info.buf_dbk_y_use,
2136 CODA7_CMD_SET_FRAME_AXI_DBKY_ADDR);
2137 coda_write(dev, ctx->iram_info.buf_dbk_c_use,
2138 CODA7_CMD_SET_FRAME_AXI_DBKC_ADDR);
2139 coda_write(dev, ctx->iram_info.buf_ovl_use,
2140 CODA7_CMD_SET_FRAME_AXI_OVL_ADDR);
Philipp Zabel10436672012-07-02 09:03:55 -0300[diff] [blame]2141 }
Philipp Zabelfcb62822013-05-23 10:43:00 -0300[diff] [blame]2142 ret = coda_command_sync(ctx, CODA_COMMAND_SET_FRAME_BUF);
2143 if (ret < 0) {
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2144 v4l2_err(v4l2_dev, "CODA_COMMAND_SET_FRAME_BUF timeout\n");
Philipp Zabelfcb62822013-05-23 10:43:00 -0300[diff] [blame]2145 goto out;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2146 }
2147
2148 /* Save stream headers */
2149 buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
2150 switch (dst_fourcc) {
2151 case V4L2_PIX_FMT_H264:
2152 /*
2153 * Get SPS in the first frame and copy it to an
2154 * intermediate buffer.
2155 */
Philipp Zabeld35167a2013-05-23 10:42:59 -0300[diff] [blame]2156 ret = coda_encode_header(ctx, buf, CODA_HEADER_H264_SPS,
2157 &ctx->vpu_header[0][0],
2158 &ctx->vpu_header_size[0]);
2159 if (ret < 0)
2160 goto out;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2161
2162 /*
2163 * Get PPS in the first frame and copy it to an
2164 * intermediate buffer.
2165 */
Philipp Zabeld35167a2013-05-23 10:42:59 -0300[diff] [blame]2166 ret = coda_encode_header(ctx, buf, CODA_HEADER_H264_PPS,
2167 &ctx->vpu_header[1][0],
2168 &ctx->vpu_header_size[1]);
2169 if (ret < 0)
2170 goto out;
2171
Javier Martin3f3f5c72012-10-29 05:20:29 -0300[diff] [blame]2172 /*
2173 * Length of H.264 headers is variable and thus it might not be
2174 * aligned for the coda to append the encoded frame. In that is
2175 * the case a filler NAL must be added to header 2.
2176 */
2177 ctx->vpu_header_size[2] = coda_h264_padding(
2178 (ctx->vpu_header_size[0] +
2179 ctx->vpu_header_size[1]),
2180 ctx->vpu_header[2]);
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2181 break;
2182 case V4L2_PIX_FMT_MPEG4:
2183 /*
2184 * Get VOS in the first frame and copy it to an
2185 * intermediate buffer
2186 */
Philipp Zabeld35167a2013-05-23 10:42:59 -0300[diff] [blame]2187 ret = coda_encode_header(ctx, buf, CODA_HEADER_MP4V_VOS,
2188 &ctx->vpu_header[0][0],
2189 &ctx->vpu_header_size[0]);
2190 if (ret < 0)
2191 goto out;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2192
Philipp Zabeld35167a2013-05-23 10:42:59 -0300[diff] [blame]2193 ret = coda_encode_header(ctx, buf, CODA_HEADER_MP4V_VIS,
2194 &ctx->vpu_header[1][0],
2195 &ctx->vpu_header_size[1]);
2196 if (ret < 0)
2197 goto out;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2198
Philipp Zabeld35167a2013-05-23 10:42:59 -0300[diff] [blame]2199 ret = coda_encode_header(ctx, buf, CODA_HEADER_MP4V_VOL,
2200 &ctx->vpu_header[2][0],
2201 &ctx->vpu_header_size[2]);
2202 if (ret < 0)
2203 goto out;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2204 break;
2205 default:
2206 /* No more formats need to save headers at the moment */
2207 break;
2208 }
2209
Philipp Zabeld35167a2013-05-23 10:42:59 -0300[diff] [blame]2210out:
Philipp Zabelfcb62822013-05-23 10:43:00 -0300[diff] [blame]2211 mutex_unlock(&dev->coda_mutex);
Philipp Zabeld35167a2013-05-23 10:42:59 -0300[diff] [blame]2212 return ret;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2213}
2214
2215static int coda_stop_streaming(struct vb2_queue *q)
2216{
2217 struct coda_ctx *ctx = vb2_get_drv_priv(q);
Philipp Zabel2fb57f02012-07-25 09:22:07 -0300[diff] [blame]2218 struct coda_dev *dev = ctx->dev;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2219
2220 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]2221 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2222 "%s: output\n", __func__);
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]2223 ctx->streamon_out = 0;
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]2224
2225 ctx->bit_stream_param |= CODA_BIT_STREAM_END_FLAG;
2226
2227 ctx->isequence = 0;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2228 } else {
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]2229 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2230 "%s: capture\n", __func__);
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]2231 ctx->streamon_cap = 0;
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]2232
2233 ctx->osequence = 0;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2234 }
2235
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]2236 if (!ctx->streamon_out && !ctx->streamon_cap) {
2237 kfifo_init(&ctx->bitstream_fifo,
2238 ctx->bitstream.vaddr, ctx->bitstream.size);
2239 ctx->runcounter = 0;
Philipp Zabel62bed142012-07-25 10:40:39 -0300[diff] [blame]2240 }
Philipp Zabel62bed142012-07-25 10:40:39 -0300[diff] [blame]2241
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2242 return 0;
2243}
2244
2245static struct vb2_ops coda_qops = {
2246 .queue_setup = coda_queue_setup,
2247 .buf_prepare = coda_buf_prepare,
2248 .buf_queue = coda_buf_queue,
2249 .wait_prepare = coda_wait_prepare,
2250 .wait_finish = coda_wait_finish,
2251 .start_streaming = coda_start_streaming,
2252 .stop_streaming = coda_stop_streaming,
2253};
2254
2255static int coda_s_ctrl(struct v4l2_ctrl *ctrl)
2256{
2257 struct coda_ctx *ctx =
2258 container_of(ctrl->handler, struct coda_ctx, ctrls);
2259
2260 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
2261 "s_ctrl: id = %d, val = %d\n", ctrl->id, ctrl->val);
2262
2263 switch (ctrl->id) {
Philipp Zabel8f35c7b2012-07-09 04:25:52 -0300[diff] [blame]2264 case V4L2_CID_HFLIP:
2265 if (ctrl->val)
2266 ctx->params.rot_mode |= CODA_MIR_HOR;
2267 else
2268 ctx->params.rot_mode &= ~CODA_MIR_HOR;
2269 break;
2270 case V4L2_CID_VFLIP:
2271 if (ctrl->val)
2272 ctx->params.rot_mode |= CODA_MIR_VER;
2273 else
2274 ctx->params.rot_mode &= ~CODA_MIR_VER;
2275 break;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2276 case V4L2_CID_MPEG_VIDEO_BITRATE:
2277 ctx->params.bitrate = ctrl->val / 1000;
2278 break;
2279 case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
2280 ctx->params.gop_size = ctrl->val;
2281 break;
2282 case V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP:
2283 ctx->params.h264_intra_qp = ctrl->val;
2284 break;
2285 case V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP:
2286 ctx->params.h264_inter_qp = ctrl->val;
2287 break;
2288 case V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP:
2289 ctx->params.mpeg4_intra_qp = ctrl->val;
2290 break;
2291 case V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP:
2292 ctx->params.mpeg4_inter_qp = ctrl->val;
2293 break;
2294 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE:
2295 ctx->params.slice_mode = ctrl->val;
2296 break;
2297 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB:
2298 ctx->params.slice_max_mb = ctrl->val;
2299 break;
Philipp Zabelc566c782012-08-08 11:59:38 -0300[diff] [blame]2300 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES:
2301 ctx->params.slice_max_bits = ctrl->val * 8;
2302 break;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2303 case V4L2_CID_MPEG_VIDEO_HEADER_MODE:
2304 break;
2305 default:
2306 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
2307 "Invalid control, id=%d, val=%d\n",
2308 ctrl->id, ctrl->val);
2309 return -EINVAL;
2310 }
2311
2312 return 0;
2313}
2314
2315static struct v4l2_ctrl_ops coda_ctrl_ops = {
2316 .s_ctrl = coda_s_ctrl,
2317};
2318
2319static int coda_ctrls_setup(struct coda_ctx *ctx)
2320{
2321 v4l2_ctrl_handler_init(&ctx->ctrls, 9);
2322
2323 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
Philipp Zabel8f35c7b2012-07-09 04:25:52 -0300[diff] [blame]2324 V4L2_CID_HFLIP, 0, 1, 1, 0);
2325 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2326 V4L2_CID_VFLIP, 0, 1, 1, 0);
2327 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2328 V4L2_CID_MPEG_VIDEO_BITRATE, 0, 32767000, 1, 0);
2329 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2330 V4L2_CID_MPEG_VIDEO_GOP_SIZE, 1, 60, 1, 16);
2331 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2332 V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP, 1, 51, 1, 25);
2333 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2334 V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP, 1, 51, 1, 25);
2335 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2336 V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP, 1, 31, 1, 2);
2337 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2338 V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP, 1, 31, 1, 2);
2339 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2340 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE,
Philipp Zabelc566c782012-08-08 11:59:38 -0300[diff] [blame]2341 V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_BYTES, 0x0,
2342 V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_SINGLE);
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2343 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2344 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB, 1, 0x3fffffff, 1, 1);
Philipp Zabelc566c782012-08-08 11:59:38 -0300[diff] [blame]2345 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2346 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES, 1, 0x3fffffff, 1, 500);
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2347 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2348 V4L2_CID_MPEG_VIDEO_HEADER_MODE,
2349 V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME,
2350 (1 << V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE),
2351 V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME);
2352
2353 if (ctx->ctrls.error) {
2354 v4l2_err(&ctx->dev->v4l2_dev, "control initialization error (%d)",
2355 ctx->ctrls.error);
2356 return -EINVAL;
2357 }
2358
2359 return v4l2_ctrl_handler_setup(&ctx->ctrls);
2360}
2361
2362static int coda_queue_init(void *priv, struct vb2_queue *src_vq,
2363 struct vb2_queue *dst_vq)
2364{
2365 struct coda_ctx *ctx = priv;
2366 int ret;
2367
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2368 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
Philipp Zabel419869c2013-05-23 07:06:30 -0300[diff] [blame]2369 src_vq->io_modes = VB2_DMABUF | VB2_MMAP | VB2_USERPTR;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2370 src_vq->drv_priv = ctx;
2371 src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
2372 src_vq->ops = &coda_qops;
2373 src_vq->mem_ops = &vb2_dma_contig_memops;
Kamil Debskiccd571c2013-04-24 10:38:24 -0300[diff] [blame]2374 src_vq->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_COPY;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2375
2376 ret = vb2_queue_init(src_vq);
2377 if (ret)
2378 return ret;
2379
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2380 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
Philipp Zabel419869c2013-05-23 07:06:30 -0300[diff] [blame]2381 dst_vq->io_modes = VB2_DMABUF | VB2_MMAP | VB2_USERPTR;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2382 dst_vq->drv_priv = ctx;
2383 dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
2384 dst_vq->ops = &coda_qops;
2385 dst_vq->mem_ops = &vb2_dma_contig_memops;
Kamil Debskiccd571c2013-04-24 10:38:24 -0300[diff] [blame]2386 dst_vq->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_COPY;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2387
2388 return vb2_queue_init(dst_vq);
2389}
2390
Philipp Zabele11f3e62012-07-25 09:16:58 -0300[diff] [blame]2391static int coda_next_free_instance(struct coda_dev *dev)
2392{
Philipp Zabel0cddc7e2013-09-30 10:34:44 -0300[diff] [blame]2393 int idx = ffz(dev->instance_mask);
2394
2395 if ((idx < 0) ||
2396 (dev->devtype->product == CODA_DX6 && idx > CODADX6_MAX_INSTANCES))
2397 return -EBUSY;
2398
2399 return idx;
Philipp Zabele11f3e62012-07-25 09:16:58 -0300[diff] [blame]2400}
2401
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2402static int coda_open(struct file *file)
2403{
2404 struct coda_dev *dev = video_drvdata(file);
2405 struct coda_ctx *ctx = NULL;
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]2406 int ret;
Philipp Zabele11f3e62012-07-25 09:16:58 -0300[diff] [blame]2407 int idx;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2408
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2409 ctx = kzalloc(sizeof *ctx, GFP_KERNEL);
2410 if (!ctx)
2411 return -ENOMEM;
2412
Fabio Estevamf82bc202013-08-21 11:14:16 -0300[diff] [blame]2413 idx = coda_next_free_instance(dev);
Philipp Zabel0cddc7e2013-09-30 10:34:44 -0300[diff] [blame]2414 if (idx < 0) {
2415 ret = idx;
Fabio Estevamf82bc202013-08-21 11:14:16 -0300[diff] [blame]2416 goto err_coda_max;
2417 }
2418 set_bit(idx, &dev->instance_mask);
2419
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]2420 INIT_WORK(&ctx->skip_run, coda_skip_run);
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2421 v4l2_fh_init(&ctx->fh, video_devdata(file));
2422 file->private_data = &ctx->fh;
2423 v4l2_fh_add(&ctx->fh);
2424 ctx->dev = dev;
Philipp Zabele11f3e62012-07-25 09:16:58 -0300[diff] [blame]2425 ctx->idx = idx;
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]2426 switch (dev->devtype->product) {
2427 case CODA_7541:
2428 ctx->reg_idx = 0;
2429 break;
2430 default:
2431 ctx->reg_idx = idx;
2432 }
Fabio Estevamf82bc202013-08-21 11:14:16 -0300[diff] [blame]2433
Fabio Estevam79830db2013-08-21 11:14:17 -0300[diff] [blame]2434 ret = clk_prepare_enable(dev->clk_per);
2435 if (ret)
2436 goto err_clk_per;
2437
2438 ret = clk_prepare_enable(dev->clk_ahb);
2439 if (ret)
2440 goto err_clk_ahb;
2441
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2442 set_default_params(ctx);
2443 ctx->m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx,
2444 &coda_queue_init);
2445 if (IS_ERR(ctx->m2m_ctx)) {
Philipp Zabel72720ff2013-05-21 10:31:25 -0300[diff] [blame]2446 ret = PTR_ERR(ctx->m2m_ctx);
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2447
2448 v4l2_err(&dev->v4l2_dev, "%s return error (%d)\n",
2449 __func__, ret);
Fabio Estevamf82bc202013-08-21 11:14:16 -0300[diff] [blame]2450 goto err_ctx_init;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2451 }
2452 ret = coda_ctrls_setup(ctx);
2453 if (ret) {
2454 v4l2_err(&dev->v4l2_dev, "failed to setup coda controls\n");
Fabio Estevamf82bc202013-08-21 11:14:16 -0300[diff] [blame]2455 goto err_ctrls_setup;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2456 }
2457
2458 ctx->fh.ctrl_handler = &ctx->ctrls;
2459
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]2460 ret = coda_alloc_context_buf(ctx, &ctx->parabuf, CODA_PARA_BUF_SIZE);
2461 if (ret < 0) {
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2462 v4l2_err(&dev->v4l2_dev, "failed to allocate parabuf");
Fabio Estevamf82bc202013-08-21 11:14:16 -0300[diff] [blame]2463 goto err_dma_alloc;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2464 }
2465
Philipp Zabel9082a7c2013-06-21 03:55:31 -0300[diff] [blame]2466 ctx->bitstream.size = CODA_MAX_FRAME_SIZE;
2467 ctx->bitstream.vaddr = dma_alloc_writecombine(&dev->plat_dev->dev,
2468 ctx->bitstream.size, &ctx->bitstream.paddr, GFP_KERNEL);
2469 if (!ctx->bitstream.vaddr) {
2470 v4l2_err(&dev->v4l2_dev, "failed to allocate bitstream ringbuffer");
2471 ret = -ENOMEM;
Fabio Estevamf82bc202013-08-21 11:14:16 -0300[diff] [blame]2472 goto err_dma_writecombine;
Philipp Zabel9082a7c2013-06-21 03:55:31 -0300[diff] [blame]2473 }
2474 kfifo_init(&ctx->bitstream_fifo,
2475 ctx->bitstream.vaddr, ctx->bitstream.size);
2476 mutex_init(&ctx->bitstream_mutex);
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]2477 mutex_init(&ctx->buffer_mutex);
Philipp Zabel9082a7c2013-06-21 03:55:31 -0300[diff] [blame]2478
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2479 coda_lock(ctx);
Philipp Zabele11f3e62012-07-25 09:16:58 -0300[diff] [blame]2480 list_add(&ctx->list, &dev->instances);
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2481 coda_unlock(ctx);
2482
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2483 v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "Created instance %d (%p)\n",
2484 ctx->idx, ctx);
2485
2486 return 0;
2487
Fabio Estevamf82bc202013-08-21 11:14:16 -0300[diff] [blame]2488err_dma_writecombine:
2489 coda_free_context_buffers(ctx);
2490 if (ctx->dev->devtype->product == CODA_DX6)
2491 coda_free_aux_buf(dev, &ctx->workbuf);
2492 coda_free_aux_buf(dev, &ctx->parabuf);
2493err_dma_alloc:
2494 v4l2_ctrl_handler_free(&ctx->ctrls);
2495err_ctrls_setup:
2496 v4l2_m2m_ctx_release(ctx->m2m_ctx);
2497err_ctx_init:
2498 clk_disable_unprepare(dev->clk_ahb);
Fabio Estevam79830db2013-08-21 11:14:17 -0300[diff] [blame]2499err_clk_ahb:
Fabio Estevamf82bc202013-08-21 11:14:16 -0300[diff] [blame]2500 clk_disable_unprepare(dev->clk_per);
Fabio Estevam79830db2013-08-21 11:14:17 -0300[diff] [blame]2501err_clk_per:
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2502 v4l2_fh_del(&ctx->fh);
2503 v4l2_fh_exit(&ctx->fh);
Fabio Estevamf82bc202013-08-21 11:14:16 -0300[diff] [blame]2504 clear_bit(ctx->idx, &dev->instance_mask);
2505err_coda_max:
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2506 kfree(ctx);
2507 return ret;
2508}
2509
2510static int coda_release(struct file *file)
2511{
2512 struct coda_dev *dev = video_drvdata(file);
2513 struct coda_ctx *ctx = fh_to_ctx(file->private_data);
2514
2515 v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "Releasing instance %p\n",
2516 ctx);
2517
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]2518 /* If this instance is running, call .job_abort and wait for it to end */
2519 v4l2_m2m_ctx_release(ctx->m2m_ctx);
2520
2521 /* In case the instance was not running, we still need to call SEQ_END */
2522 mutex_lock(&dev->coda_mutex);
2523 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
2524 "%s: sent command 'SEQ_END' to coda\n", __func__);
2525 if (coda_command_sync(ctx, CODA_COMMAND_SEQ_END)) {
2526 v4l2_err(&dev->v4l2_dev,
2527 "CODA_COMMAND_SEQ_END failed\n");
2528 mutex_unlock(&dev->coda_mutex);
2529 return -ETIMEDOUT;
2530 }
2531 mutex_unlock(&dev->coda_mutex);
2532
2533 coda_free_framebuffers(ctx);
2534
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2535 coda_lock(ctx);
Philipp Zabele11f3e62012-07-25 09:16:58 -0300[diff] [blame]2536 list_del(&ctx->list);
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2537 coda_unlock(ctx);
2538
Philipp Zabel9082a7c2013-06-21 03:55:31 -0300[diff] [blame]2539 dma_free_writecombine(&dev->plat_dev->dev, ctx->bitstream.size,
2540 ctx->bitstream.vaddr, ctx->bitstream.paddr);
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]2541 coda_free_context_buffers(ctx);
2542 if (ctx->dev->devtype->product == CODA_DX6)
2543 coda_free_aux_buf(dev, &ctx->workbuf);
2544
2545 coda_free_aux_buf(dev, &ctx->parabuf);
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2546 v4l2_ctrl_handler_free(&ctx->ctrls);
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2547 clk_disable_unprepare(dev->clk_ahb);
Fabio Estevamf82bc202013-08-21 11:14:16 -0300[diff] [blame]2548 clk_disable_unprepare(dev->clk_per);
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2549 v4l2_fh_del(&ctx->fh);
2550 v4l2_fh_exit(&ctx->fh);
Philipp Zabele11f3e62012-07-25 09:16:58 -0300[diff] [blame]2551 clear_bit(ctx->idx, &dev->instance_mask);
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2552 kfree(ctx);
2553
2554 return 0;
2555}
2556
2557static unsigned int coda_poll(struct file *file,
2558 struct poll_table_struct *wait)
2559{
2560 struct coda_ctx *ctx = fh_to_ctx(file->private_data);
2561 int ret;
2562
2563 coda_lock(ctx);
2564 ret = v4l2_m2m_poll(file, ctx->m2m_ctx, wait);
2565 coda_unlock(ctx);
2566 return ret;
2567}
2568
2569static int coda_mmap(struct file *file, struct vm_area_struct *vma)
2570{
2571 struct coda_ctx *ctx = fh_to_ctx(file->private_data);
2572
2573 return v4l2_m2m_mmap(file, ctx->m2m_ctx, vma);
2574}
2575
2576static const struct v4l2_file_operations coda_fops = {
2577 .owner = THIS_MODULE,
2578 .open = coda_open,
2579 .release = coda_release,
2580 .poll = coda_poll,
2581 .unlocked_ioctl = video_ioctl2,
2582 .mmap = coda_mmap,
2583};
2584
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]2585static void coda_finish_decode(struct coda_ctx *ctx)
2586{
2587 struct coda_dev *dev = ctx->dev;
2588 struct coda_q_data *q_data_src;
2589 struct coda_q_data *q_data_dst;
2590 struct vb2_buffer *dst_buf;
2591 int width, height;
2592 int decoded_idx;
2593 int display_idx;
2594 u32 src_fourcc;
2595 int success;
2596 u32 val;
2597
2598 dst_buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
2599
2600 /* Update kfifo out pointer from coda bitstream read pointer */
2601 coda_kfifo_sync_from_device(ctx);
2602
2603 /*
2604 * in stream-end mode, the read pointer can overshoot the write pointer
2605 * by up to 512 bytes
2606 */
2607 if (ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG) {
2608 if (coda_get_bitstream_payload(ctx) >= 0x100000 - 512)
2609 kfifo_init(&ctx->bitstream_fifo,
2610 ctx->bitstream.vaddr, ctx->bitstream.size);
2611 }
2612
2613 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
2614 src_fourcc = q_data_src->fourcc;
2615
2616 val = coda_read(dev, CODA_RET_DEC_PIC_SUCCESS);
2617 if (val != 1)
2618 pr_err("DEC_PIC_SUCCESS = %d\n", val);
2619
2620 success = val & 0x1;
2621 if (!success)
2622 v4l2_err(&dev->v4l2_dev, "decode failed\n");
2623
2624 if (src_fourcc == V4L2_PIX_FMT_H264) {
2625 if (val & (1 << 3))
2626 v4l2_err(&dev->v4l2_dev,
2627 "insufficient PS buffer space (%d bytes)\n",
2628 ctx->psbuf.size);
2629 if (val & (1 << 2))
2630 v4l2_err(&dev->v4l2_dev,
2631 "insufficient slice buffer space (%d bytes)\n",
2632 ctx->slicebuf.size);
2633 }
2634
2635 val = coda_read(dev, CODA_RET_DEC_PIC_SIZE);
2636 width = (val >> 16) & 0xffff;
2637 height = val & 0xffff;
2638
2639 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
2640
2641 val = coda_read(dev, CODA_RET_DEC_PIC_TYPE);
2642 if ((val & 0x7) == 0) {
2643 dst_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_KEYFRAME;
2644 dst_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_PFRAME;
2645 } else {
2646 dst_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_PFRAME;
2647 dst_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_KEYFRAME;
2648 }
2649
2650 val = coda_read(dev, CODA_RET_DEC_PIC_ERR_MB);
2651 if (val > 0)
2652 v4l2_err(&dev->v4l2_dev,
2653 "errors in %d macroblocks\n", val);
2654
2655 if (dev->devtype->product == CODA_7541) {
2656 val = coda_read(dev, CODA_RET_DEC_PIC_OPTION);
2657 if (val == 0) {
2658 /* not enough bitstream data */
2659 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
2660 "prescan failed: %d\n", val);
2661 ctx->prescan_failed = true;
2662 return;
2663 }
2664 }
2665
2666 ctx->frm_dis_flg = coda_read(dev, CODA_REG_BIT_FRM_DIS_FLG(ctx->reg_idx));
2667
2668 /*
2669 * The previous display frame was copied out by the rotator,
2670 * now it can be overwritten again
2671 */
2672 if (ctx->display_idx >= 0 &&
2673 ctx->display_idx < ctx->num_internal_frames) {
2674 ctx->frm_dis_flg &= ~(1 << ctx->display_idx);
2675 coda_write(dev, ctx->frm_dis_flg,
2676 CODA_REG_BIT_FRM_DIS_FLG(ctx->reg_idx));
2677 }
2678
2679 /*
2680 * The index of the last decoded frame, not necessarily in
2681 * display order, and the index of the next display frame.
2682 * The latter could have been decoded in a previous run.
2683 */
2684 decoded_idx = coda_read(dev, CODA_RET_DEC_PIC_CUR_IDX);
2685 display_idx = coda_read(dev, CODA_RET_DEC_PIC_FRAME_IDX);
2686
2687 if (decoded_idx == -1) {
2688 /* no frame was decoded, but we might have a display frame */
2689 if (display_idx < 0 && ctx->display_idx < 0)
2690 ctx->prescan_failed = true;
2691 } else if (decoded_idx == -2) {
2692 /* no frame was decoded, we still return the remaining buffers */
2693 } else if (decoded_idx < 0 || decoded_idx >= ctx->num_internal_frames) {
2694 v4l2_err(&dev->v4l2_dev,
2695 "decoded frame index out of range: %d\n", decoded_idx);
2696 }
2697
2698 if (display_idx == -1) {
2699 /*
2700 * no more frames to be decoded, but there could still
2701 * be rotator output to dequeue
2702 */
2703 ctx->prescan_failed = true;
2704 } else if (display_idx == -3) {
2705 /* possibly prescan failure */
2706 } else if (display_idx < 0 || display_idx >= ctx->num_internal_frames) {
2707 v4l2_err(&dev->v4l2_dev,
2708 "presentation frame index out of range: %d\n",
2709 display_idx);
2710 }
2711
2712 /* If a frame was copied out, return it */
2713 if (ctx->display_idx >= 0 &&
2714 ctx->display_idx < ctx->num_internal_frames) {
2715 dst_buf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
2716 dst_buf->v4l2_buf.sequence = ctx->osequence++;
2717
2718 vb2_set_plane_payload(dst_buf, 0, width * height * 3 / 2);
2719
2720 v4l2_m2m_buf_done(dst_buf, success ? VB2_BUF_STATE_DONE :
2721 VB2_BUF_STATE_ERROR);
2722
2723 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
2724 "job finished: decoding frame (%d) (%s)\n",
2725 dst_buf->v4l2_buf.sequence,
2726 (dst_buf->v4l2_buf.flags & V4L2_BUF_FLAG_KEYFRAME) ?
2727 "KEYFRAME" : "PFRAME");
2728 } else {
2729 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
2730 "job finished: no frame decoded\n");
2731 }
2732
2733 /* The rotator will copy the current display frame next time */
2734 ctx->display_idx = display_idx;
2735}
2736
2737static void coda_finish_encode(struct coda_ctx *ctx)
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2738{
Philipp Zabelec25f682012-07-20 08:54:29 -0300[diff] [blame]2739 struct vb2_buffer *src_buf, *dst_buf;
Philipp Zabel477c1cf2013-06-21 03:55:33 -0300[diff] [blame]2740 struct coda_dev *dev = ctx->dev;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2741 u32 wr_ptr, start_ptr;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2742
Philipp Zabelec25f682012-07-20 08:54:29 -0300[diff] [blame]2743 src_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
2744 dst_buf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2745
2746 /* Get results from the coda */
2747 coda_read(dev, CODA_RET_ENC_PIC_TYPE);
2748 start_ptr = coda_read(dev, CODA_CMD_ENC_PIC_BB_START);
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]2749 wr_ptr = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->reg_idx));
2750
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2751 /* Calculate bytesused field */
2752 if (dst_buf->v4l2_buf.sequence == 0) {
Philipp Zabel366108f2013-06-21 03:55:27 -0300[diff] [blame]2753 vb2_set_plane_payload(dst_buf, 0, wr_ptr - start_ptr +
2754 ctx->vpu_header_size[0] +
2755 ctx->vpu_header_size[1] +
2756 ctx->vpu_header_size[2]);
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2757 } else {
Philipp Zabel366108f2013-06-21 03:55:27 -0300[diff] [blame]2758 vb2_set_plane_payload(dst_buf, 0, wr_ptr - start_ptr);
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2759 }
2760
2761 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, "frame size = %u\n",
2762 wr_ptr - start_ptr);
2763
2764 coda_read(dev, CODA_RET_ENC_PIC_SLICE_NUM);
2765 coda_read(dev, CODA_RET_ENC_PIC_FLAG);
2766
2767 if (src_buf->v4l2_buf.flags & V4L2_BUF_FLAG_KEYFRAME) {
2768 dst_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_KEYFRAME;
2769 dst_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_PFRAME;
2770 } else {
2771 dst_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_PFRAME;
2772 dst_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_KEYFRAME;
2773 }
2774
Kamil Debskiccd571c2013-04-24 10:38:24 -0300[diff] [blame]2775 dst_buf->v4l2_buf.timestamp = src_buf->v4l2_buf.timestamp;
2776 dst_buf->v4l2_buf.timecode = src_buf->v4l2_buf.timecode;
2777
Philipp Zabelec25f682012-07-20 08:54:29 -0300[diff] [blame]2778 v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE);
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2779 v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_DONE);
2780
2781 ctx->gopcounter--;
2782 if (ctx->gopcounter < 0)
2783 ctx->gopcounter = ctx->params.gop_size - 1;
2784
2785 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
2786 "job finished: encoding frame (%d) (%s)\n",
2787 dst_buf->v4l2_buf.sequence,
2788 (dst_buf->v4l2_buf.flags & V4L2_BUF_FLAG_KEYFRAME) ?
2789 "KEYFRAME" : "PFRAME");
Philipp Zabel477c1cf2013-06-21 03:55:33 -0300[diff] [blame]2790}
2791
2792static irqreturn_t coda_irq_handler(int irq, void *data)
2793{
2794 struct coda_dev *dev = data;
2795 struct coda_ctx *ctx;
2796
2797 cancel_delayed_work(&dev->timeout);
2798
2799 /* read status register to attend the IRQ */
2800 coda_read(dev, CODA_REG_BIT_INT_STATUS);
2801 coda_write(dev, CODA_REG_BIT_INT_CLEAR_SET,
2802 CODA_REG_BIT_INT_CLEAR);
2803
2804 ctx = v4l2_m2m_get_curr_priv(dev->m2m_dev);
2805 if (ctx == NULL) {
2806 v4l2_err(&dev->v4l2_dev, "Instance released before the end of transaction\n");
2807 mutex_unlock(&dev->coda_mutex);
2808 return IRQ_HANDLED;
2809 }
2810
2811 if (ctx->aborting) {
2812 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
2813 "task has been aborted\n");
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]2814 goto out;
Philipp Zabel477c1cf2013-06-21 03:55:33 -0300[diff] [blame]2815 }
2816
2817 if (coda_isbusy(ctx->dev)) {
2818 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
2819 "coda is still busy!!!!\n");
2820 return IRQ_NONE;
2821 }
2822
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]2823 if (ctx->inst_type == CODA_INST_DECODER)
2824 coda_finish_decode(ctx);
2825 else
2826 coda_finish_encode(ctx);
2827
2828out:
2829 if (ctx->aborting || (!ctx->streamon_cap && !ctx->streamon_out)) {
2830 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
2831 "%s: sent command 'SEQ_END' to coda\n", __func__);
2832 if (coda_command_sync(ctx, CODA_COMMAND_SEQ_END)) {
2833 v4l2_err(&dev->v4l2_dev,
2834 "CODA_COMMAND_SEQ_END failed\n");
2835 }
2836
2837 kfifo_init(&ctx->bitstream_fifo,
2838 ctx->bitstream.vaddr, ctx->bitstream.size);
2839
2840 coda_free_framebuffers(ctx);
2841 coda_free_context_buffers(ctx);
2842 }
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2843
Philipp Zabelfcb62822013-05-23 10:43:00 -0300[diff] [blame]2844 mutex_unlock(&dev->coda_mutex);
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]2845 mutex_unlock(&ctx->buffer_mutex);
Philipp Zabelfcb62822013-05-23 10:43:00 -0300[diff] [blame]2846
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2847 v4l2_m2m_job_finish(ctx->dev->m2m_dev, ctx->m2m_ctx);
2848
2849 return IRQ_HANDLED;
2850}
2851
Philipp Zabel2fb57f02012-07-25 09:22:07 -0300[diff] [blame]2852static void coda_timeout(struct work_struct *work)
2853{
2854 struct coda_ctx *ctx;
2855 struct coda_dev *dev = container_of(to_delayed_work(work),
2856 struct coda_dev, timeout);
2857
Philipp Zabel39cc0292013-05-21 10:32:42 -0300[diff] [blame]2858 dev_err(&dev->plat_dev->dev, "CODA PIC_RUN timeout, stopping all streams\n");
Philipp Zabel2fb57f02012-07-25 09:22:07 -0300[diff] [blame]2859
2860 mutex_lock(&dev->dev_mutex);
2861 list_for_each_entry(ctx, &dev->instances, list) {
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]2862 if (mutex_is_locked(&ctx->buffer_mutex))
2863 mutex_unlock(&ctx->buffer_mutex);
Philipp Zabel2fb57f02012-07-25 09:22:07 -0300[diff] [blame]2864 v4l2_m2m_streamoff(NULL, ctx->m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
2865 v4l2_m2m_streamoff(NULL, ctx->m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
2866 }
2867 mutex_unlock(&dev->dev_mutex);
Philipp Zabelfcb62822013-05-23 10:43:00 -0300[diff] [blame]2868
2869 mutex_unlock(&dev->coda_mutex);
2870 ctx = v4l2_m2m_get_curr_priv(dev->m2m_dev);
2871 v4l2_m2m_job_finish(ctx->dev->m2m_dev, ctx->m2m_ctx);
Philipp Zabel2fb57f02012-07-25 09:22:07 -0300[diff] [blame]2872}
2873
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2874static u32 coda_supported_firmwares[] = {
2875 CODA_FIRMWARE_VERNUM(CODA_DX6, 2, 2, 5),
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]2876 CODA_FIRMWARE_VERNUM(CODA_7541, 1, 4, 50),
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2877};
2878
2879static bool coda_firmware_supported(u32 vernum)
2880{
2881 int i;
2882
2883 for (i = 0; i < ARRAY_SIZE(coda_supported_firmwares); i++)
2884 if (vernum == coda_supported_firmwares[i])
2885 return true;
2886 return false;
2887}
2888
Philipp Zabel87048bb2012-07-02 07:03:43 -0300[diff] [blame]2889static int coda_hw_init(struct coda_dev *dev)
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2890{
2891 u16 product, major, minor, release;
2892 u32 data;
2893 u16 *p;
Fabio Estevam79830db2013-08-21 11:14:17 -0300[diff] [blame]2894 int i, ret;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2895
Fabio Estevam79830db2013-08-21 11:14:17 -0300[diff] [blame]2896 ret = clk_prepare_enable(dev->clk_per);
2897 if (ret)
2898 return ret;
2899
2900 ret = clk_prepare_enable(dev->clk_ahb);
2901 if (ret)
2902 goto err_clk_ahb;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2903
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2904 /*
2905 * Copy the first CODA_ISRAM_SIZE in the internal SRAM.
Philipp Zabel87048bb2012-07-02 07:03:43 -0300[diff] [blame]2906 * The 16-bit chars in the code buffer are in memory access
2907 * order, re-sort them to CODA order for register download.
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2908 * Data in this SRAM survives a reboot.
2909 */
Philipp Zabel87048bb2012-07-02 07:03:43 -0300[diff] [blame]2910 p = (u16 *)dev->codebuf.vaddr;
2911 if (dev->devtype->product == CODA_DX6) {
2912 for (i = 0; i < (CODA_ISRAM_SIZE / 2); i++) {
2913 data = CODA_DOWN_ADDRESS_SET(i) |
2914 CODA_DOWN_DATA_SET(p[i ^ 1]);
2915 coda_write(dev, data, CODA_REG_BIT_CODE_DOWN);
2916 }
2917 } else {
2918 for (i = 0; i < (CODA_ISRAM_SIZE / 2); i++) {
2919 data = CODA_DOWN_ADDRESS_SET(i) |
2920 CODA_DOWN_DATA_SET(p[round_down(i, 4) +
2921 3 - (i % 4)]);
2922 coda_write(dev, data, CODA_REG_BIT_CODE_DOWN);
2923 }
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2924 }
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2925
Philipp Zabel9acf7692013-05-23 10:42:56 -0300[diff] [blame]2926 /* Clear registers */
2927 for (i = 0; i < 64; i++)
2928 coda_write(dev, 0, CODA_REG_BIT_CODE_BUF_ADDR + i * 4);
2929
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2930 /* Tell the BIT where to find everything it needs */
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]2931 if (dev->devtype->product == CODA_7541) {
2932 coda_write(dev, dev->tempbuf.paddr,
2933 CODA_REG_BIT_TEMP_BUF_ADDR);
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]2934 coda_write(dev, 0, CODA_REG_BIT_BIT_STREAM_PARAM);
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]2935 } else {
2936 coda_write(dev, dev->workbuf.paddr,
2937 CODA_REG_BIT_WORK_BUF_ADDR);
2938 }
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2939 coda_write(dev, dev->codebuf.paddr,
2940 CODA_REG_BIT_CODE_BUF_ADDR);
2941 coda_write(dev, 0, CODA_REG_BIT_CODE_RUN);
2942
2943 /* Set default values */
2944 switch (dev->devtype->product) {
2945 case CODA_DX6:
2946 coda_write(dev, CODADX6_STREAM_BUF_PIC_FLUSH, CODA_REG_BIT_STREAM_CTRL);
2947 break;
2948 default:
2949 coda_write(dev, CODA7_STREAM_BUF_PIC_FLUSH, CODA_REG_BIT_STREAM_CTRL);
2950 }
2951 coda_write(dev, 0, CODA_REG_BIT_FRAME_MEM_CTRL);
Philipp Zabel10436672012-07-02 09:03:55 -0300[diff] [blame]2952
2953 if (dev->devtype->product != CODA_DX6)
2954 coda_write(dev, 0, CODA7_REG_BIT_AXI_SRAM_USE);
2955
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]2956 coda_write(dev, CODA_INT_INTERRUPT_ENABLE,
2957 CODA_REG_BIT_INT_ENABLE);
2958
2959 /* Reset VPU and start processor */
2960 data = coda_read(dev, CODA_REG_BIT_CODE_RESET);
2961 data |= CODA_REG_RESET_ENABLE;
2962 coda_write(dev, data, CODA_REG_BIT_CODE_RESET);
2963 udelay(10);
2964 data &= ~CODA_REG_RESET_ENABLE;
2965 coda_write(dev, data, CODA_REG_BIT_CODE_RESET);
2966 coda_write(dev, CODA_REG_RUN_ENABLE, CODA_REG_BIT_CODE_RUN);
2967
2968 /* Load firmware */
2969 coda_write(dev, 0, CODA_CMD_FIRMWARE_VERNUM);
2970 coda_write(dev, CODA_REG_BIT_BUSY_FLAG, CODA_REG_BIT_BUSY);
2971 coda_write(dev, 0, CODA_REG_BIT_RUN_INDEX);
2972 coda_write(dev, 0, CODA_REG_BIT_RUN_COD_STD);
2973 coda_write(dev, CODA_COMMAND_FIRMWARE_GET, CODA_REG_BIT_RUN_COMMAND);
2974 if (coda_wait_timeout(dev)) {
2975 clk_disable_unprepare(dev->clk_per);
2976 clk_disable_unprepare(dev->clk_ahb);
2977 v4l2_err(&dev->v4l2_dev, "firmware get command error\n");
2978 return -EIO;
2979 }
2980
2981 /* Check we are compatible with the loaded firmware */
2982 data = coda_read(dev, CODA_CMD_FIRMWARE_VERNUM);
2983 product = CODA_FIRMWARE_PRODUCT(data);
2984 major = CODA_FIRMWARE_MAJOR(data);
2985 minor = CODA_FIRMWARE_MINOR(data);
2986 release = CODA_FIRMWARE_RELEASE(data);
2987
2988 clk_disable_unprepare(dev->clk_per);
2989 clk_disable_unprepare(dev->clk_ahb);
2990
2991 if (product != dev->devtype->product) {
2992 v4l2_err(&dev->v4l2_dev, "Wrong firmware. Hw: %s, Fw: %s,"
2993 " Version: %u.%u.%u\n",
2994 coda_product_name(dev->devtype->product),
2995 coda_product_name(product), major, minor, release);
2996 return -EINVAL;
2997 }
2998
2999 v4l2_info(&dev->v4l2_dev, "Initialized %s.\n",
3000 coda_product_name(product));
3001
3002 if (coda_firmware_supported(data)) {
3003 v4l2_info(&dev->v4l2_dev, "Firmware version: %u.%u.%u\n",
3004 major, minor, release);
3005 } else {
3006 v4l2_warn(&dev->v4l2_dev, "Unsupported firmware version: "
3007 "%u.%u.%u\n", major, minor, release);
3008 }
3009
3010 return 0;
Fabio Estevam79830db2013-08-21 11:14:17 -0300[diff] [blame]3011
3012err_clk_ahb:
3013 clk_disable_unprepare(dev->clk_per);
3014 return ret;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]3015}
3016
3017static void coda_fw_callback(const struct firmware *fw, void *context)
3018{
3019 struct coda_dev *dev = context;
3020 struct platform_device *pdev = dev->plat_dev;
3021 int ret;
3022
3023 if (!fw) {
3024 v4l2_err(&dev->v4l2_dev, "firmware request failed\n");
3025 return;
3026 }
3027
3028 /* allocate auxiliary per-device code buffer for the BIT processor */
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]3029 ret = coda_alloc_aux_buf(dev, &dev->codebuf, fw->size);
3030 if (ret < 0) {
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]3031 dev_err(&pdev->dev, "failed to allocate code buffer\n");
3032 return;
3033 }
3034
Philipp Zabel87048bb2012-07-02 07:03:43 -0300[diff] [blame]3035 /* Copy the whole firmware image to the code buffer */
3036 memcpy(dev->codebuf.vaddr, fw->data, fw->size);
3037 release_firmware(fw);
3038
3039 ret = coda_hw_init(dev);
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]3040 if (ret) {
3041 v4l2_err(&dev->v4l2_dev, "HW initialization failed\n");
3042 return;
3043 }
3044
3045 dev->vfd.fops = &coda_fops,
3046 dev->vfd.ioctl_ops = &coda_ioctl_ops;
3047 dev->vfd.release = video_device_release_empty,
3048 dev->vfd.lock = &dev->dev_mutex;
3049 dev->vfd.v4l2_dev = &dev->v4l2_dev;
Hans Verkuil954f3402012-09-05 06:05:50 -0300[diff] [blame]3050 dev->vfd.vfl_dir = VFL_DIR_M2M;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]3051 snprintf(dev->vfd.name, sizeof(dev->vfd.name), "%s", CODA_NAME);
3052 video_set_drvdata(&dev->vfd, dev);
3053
3054 dev->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev);
3055 if (IS_ERR(dev->alloc_ctx)) {
3056 v4l2_err(&dev->v4l2_dev, "Failed to alloc vb2 context\n");
3057 return;
3058 }
3059
3060 dev->m2m_dev = v4l2_m2m_init(&coda_m2m_ops);
3061 if (IS_ERR(dev->m2m_dev)) {
3062 v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem device\n");
3063 goto rel_ctx;
3064 }
3065
3066 ret = video_register_device(&dev->vfd, VFL_TYPE_GRABBER, 0);
3067 if (ret) {
3068 v4l2_err(&dev->v4l2_dev, "Failed to register video device\n");
3069 goto rel_m2m;
3070 }
3071 v4l2_info(&dev->v4l2_dev, "codec registered as /dev/video%d\n",
3072 dev->vfd.num);
3073
3074 return;
3075
3076rel_m2m:
3077 v4l2_m2m_release(dev->m2m_dev);
3078rel_ctx:
3079 vb2_dma_contig_cleanup_ctx(dev->alloc_ctx);
3080}
3081
3082static int coda_firmware_request(struct coda_dev *dev)
3083{
3084 char *fw = dev->devtype->firmware;
3085
3086 dev_dbg(&dev->plat_dev->dev, "requesting firmware '%s' for %s\n", fw,
3087 coda_product_name(dev->devtype->product));
3088
3089 return request_firmware_nowait(THIS_MODULE, true,
3090 fw, &dev->plat_dev->dev, GFP_KERNEL, dev, coda_fw_callback);
3091}
3092
3093enum coda_platform {
3094 CODA_IMX27,
Philipp Zabeldf1e74c2012-07-02 06:07:10 -0300[diff] [blame]3095 CODA_IMX53,
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]3096};
3097
Emil Goodec06d8752012-08-14 17:44:42 -0300[diff] [blame]3098static const struct coda_devtype coda_devdata[] = {
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]3099 [CODA_IMX27] = {
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]3100 .firmware = "v4l-codadx6-imx27.bin",
3101 .product = CODA_DX6,
3102 .codecs = codadx6_codecs,
3103 .num_codecs = ARRAY_SIZE(codadx6_codecs),
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]3104 },
Philipp Zabeldf1e74c2012-07-02 06:07:10 -0300[diff] [blame]3105 [CODA_IMX53] = {
Philipp Zabelb96904e2013-05-23 10:42:58 -0300[diff] [blame]3106 .firmware = "v4l-coda7541-imx53.bin",
3107 .product = CODA_7541,
3108 .codecs = coda7_codecs,
3109 .num_codecs = ARRAY_SIZE(coda7_codecs),
Philipp Zabeldf1e74c2012-07-02 06:07:10 -0300[diff] [blame]3110 },
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]3111};
3112
3113static struct platform_device_id coda_platform_ids[] = {
3114 { .name = "coda-imx27", .driver_data = CODA_IMX27 },
Fabio Estevam4e44cd02012-10-10 00:07:38 -0300[diff] [blame]3115 { .name = "coda-imx53", .driver_data = CODA_IMX53 },
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]3116 { /* sentinel */ }
3117};
3118MODULE_DEVICE_TABLE(platform, coda_platform_ids);
3119
3120#ifdef CONFIG_OF
3121static const struct of_device_id coda_dt_ids[] = {
Alexander Shiyan7b0dd9e2013-06-15 08:09:57 -0300[diff] [blame]3122 { .compatible = "fsl,imx27-vpu", .data = &coda_devdata[CODA_IMX27] },
Philipp Zabeldf1e74c2012-07-02 06:07:10 -0300[diff] [blame]3123 { .compatible = "fsl,imx53-vpu", .data = &coda_devdata[CODA_IMX53] },
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]3124 { /* sentinel */ }
3125};
3126MODULE_DEVICE_TABLE(of, coda_dt_ids);
3127#endif
3128
Greg Kroah-Hartman4c62e972012-12-21 13:17:53 -0800[diff] [blame]3129static int coda_probe(struct platform_device *pdev)
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]3130{
3131 const struct of_device_id *of_id =
3132 of_match_device(of_match_ptr(coda_dt_ids), &pdev->dev);
3133 const struct platform_device_id *pdev_id;
Philipp Zabel657eee72013-04-29 16:17:14 -0700[diff] [blame]3134 struct coda_platform_data *pdata = pdev->dev.platform_data;
3135 struct device_node *np = pdev->dev.of_node;
3136 struct gen_pool *pool;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]3137 struct coda_dev *dev;
3138 struct resource *res;
3139 int ret, irq;
3140
3141 dev = devm_kzalloc(&pdev->dev, sizeof *dev, GFP_KERNEL);
3142 if (!dev) {
3143 dev_err(&pdev->dev, "Not enough memory for %s\n",
3144 CODA_NAME);
3145 return -ENOMEM;
3146 }
3147
3148 spin_lock_init(&dev->irqlock);
Philipp Zabele11f3e62012-07-25 09:16:58 -0300[diff] [blame]3149 INIT_LIST_HEAD(&dev->instances);
Philipp Zabel2fb57f02012-07-25 09:22:07 -0300[diff] [blame]3150 INIT_DELAYED_WORK(&dev->timeout, coda_timeout);
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]3151
3152 dev->plat_dev = pdev;
3153 dev->clk_per = devm_clk_get(&pdev->dev, "per");
3154 if (IS_ERR(dev->clk_per)) {
3155 dev_err(&pdev->dev, "Could not get per clock\n");
3156 return PTR_ERR(dev->clk_per);
3157 }
3158
3159 dev->clk_ahb = devm_clk_get(&pdev->dev, "ahb");
3160 if (IS_ERR(dev->clk_ahb)) {
3161 dev_err(&pdev->dev, "Could not get ahb clock\n");
3162 return PTR_ERR(dev->clk_ahb);
3163 }
3164
3165 /* Get memory for physical registers */
3166 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
Philipp Zabel611cbbf2013-05-21 04:19:27 -0300[diff] [blame]3167 dev->regs_base = devm_ioremap_resource(&pdev->dev, res);
3168 if (IS_ERR(dev->regs_base))
3169 return PTR_ERR(dev->regs_base);
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]3170
3171 /* IRQ */
3172 irq = platform_get_irq(pdev, 0);
3173 if (irq < 0) {
3174 dev_err(&pdev->dev, "failed to get irq resource\n");
3175 return -ENOENT;
3176 }
3177
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]3178 if (devm_request_threaded_irq(&pdev->dev, irq, NULL, coda_irq_handler,
3179 IRQF_ONESHOT, CODA_NAME, dev) < 0) {
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]3180 dev_err(&pdev->dev, "failed to request irq\n");
3181 return -ENOENT;
3182 }
3183
Philipp Zabel657eee72013-04-29 16:17:14 -0700[diff] [blame]3184 /* Get IRAM pool from device tree or platform data */
3185 pool = of_get_named_gen_pool(np, "iram", 0);
3186 if (!pool && pdata)
3187 pool = dev_get_gen_pool(pdata->iram_dev);
3188 if (!pool) {
3189 dev_err(&pdev->dev, "iram pool not available\n");
3190 return -ENOMEM;
3191 }
3192 dev->iram_pool = pool;
3193
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]3194 ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
3195 if (ret)
3196 return ret;
3197
3198 mutex_init(&dev->dev_mutex);
Philipp Zabelfcb62822013-05-23 10:43:00 -0300[diff] [blame]3199 mutex_init(&dev->coda_mutex);
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]3200
3201 pdev_id = of_id ? of_id->data : platform_get_device_id(pdev);
3202
3203 if (of_id) {
3204 dev->devtype = of_id->data;
3205 } else if (pdev_id) {
3206 dev->devtype = &coda_devdata[pdev_id->driver_data];
3207 } else {
3208 v4l2_device_unregister(&dev->v4l2_dev);
3209 return -EINVAL;
3210 }
3211
3212 /* allocate auxiliary per-device buffers for the BIT processor */
3213 switch (dev->devtype->product) {
3214 case CODA_DX6:
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]3215 ret = coda_alloc_aux_buf(dev, &dev->workbuf,
3216 CODADX6_WORK_BUF_SIZE);
3217 if (ret < 0) {
3218 dev_err(&pdev->dev, "failed to allocate work buffer\n");
3219 v4l2_device_unregister(&dev->v4l2_dev);
3220 return ret;
3221 }
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]3222 break;
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]3223 case CODA_7541:
3224 dev->tempbuf.size = CODA7_TEMP_BUF_SIZE;
3225 break;
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]3226 }
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]3227 if (dev->tempbuf.size) {
3228 ret = coda_alloc_aux_buf(dev, &dev->tempbuf,
3229 dev->tempbuf.size);
3230 if (ret < 0) {
3231 dev_err(&pdev->dev, "failed to allocate temp buffer\n");
3232 v4l2_device_unregister(&dev->v4l2_dev);
3233 return ret;
3234 }
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]3235 }
3236
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]3237 switch (dev->devtype->product) {
3238 case CODA_DX6:
Philipp Zabel657eee72013-04-29 16:17:14 -0700[diff] [blame]3239 dev->iram_size = CODADX6_IRAM_SIZE;
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]3240 break;
3241 case CODA_7541:
Philipp Zabel657eee72013-04-29 16:17:14 -0700[diff] [blame]3242 dev->iram_size = CODA7_IRAM_SIZE;
Philipp Zabel918c66f2013-06-27 06:59:01 -0300[diff] [blame]3243 break;
3244 }
Philipp Zabel657eee72013-04-29 16:17:14 -0700[diff] [blame]3245 dev->iram_vaddr = gen_pool_alloc(dev->iram_pool, dev->iram_size);
3246 if (!dev->iram_vaddr) {
3247 dev_err(&pdev->dev, "unable to alloc iram\n");
3248 return -ENOMEM;
Philipp Zabel10436672012-07-02 09:03:55 -0300[diff] [blame]3249 }
Philipp Zabel657eee72013-04-29 16:17:14 -0700[diff] [blame]3250 dev->iram_paddr = gen_pool_virt_to_phys(dev->iram_pool,
3251 dev->iram_vaddr);
Philipp Zabel10436672012-07-02 09:03:55 -0300[diff] [blame]3252
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]3253 platform_set_drvdata(pdev, dev);
3254
3255 return coda_firmware_request(dev);
3256}
3257
3258static int coda_remove(struct platform_device *pdev)
3259{
3260 struct coda_dev *dev = platform_get_drvdata(pdev);
3261
3262 video_unregister_device(&dev->vfd);
3263 if (dev->m2m_dev)
3264 v4l2_m2m_release(dev->m2m_dev);
3265 if (dev->alloc_ctx)
3266 vb2_dma_contig_cleanup_ctx(dev->alloc_ctx);
3267 v4l2_device_unregister(&dev->v4l2_dev);
Philipp Zabel657eee72013-04-29 16:17:14 -0700[diff] [blame]3268 if (dev->iram_vaddr)
3269 gen_pool_free(dev->iram_pool, dev->iram_vaddr, dev->iram_size);
Philipp Zabel5677e3b2013-06-21 03:55:30 -0300[diff] [blame]3270 coda_free_aux_buf(dev, &dev->codebuf);
3271 coda_free_aux_buf(dev, &dev->tempbuf);
3272 coda_free_aux_buf(dev, &dev->workbuf);
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]3273 return 0;
3274}
3275
3276static struct platform_driver coda_driver = {
3277 .probe = coda_probe,
Greg Kroah-Hartman4c62e972012-12-21 13:17:53 -0800[diff] [blame]3278 .remove = coda_remove,
Javier Martin186b2502012-07-26 05:53:35 -0300[diff] [blame]3279 .driver = {
3280 .name = CODA_NAME,
3281 .owner = THIS_MODULE,
3282 .of_match_table = of_match_ptr(coda_dt_ids),
3283 },
3284 .id_table = coda_platform_ids,
3285};
3286
3287module_platform_driver(coda_driver);
3288
3289MODULE_LICENSE("GPL");
3290MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>");
3291MODULE_DESCRIPTION("Coda multi-standard codec V4L2 driver");