Commit | Line | Data |
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a81fb9b2 GL |
1 | /* |
2 | * SuperH Video Output Unit (VOU) driver | |
3 | * | |
4 | * Copyright (C) 2010, Guennadi Liakhovetski <g.liakhovetski@gmx.de> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 as | |
8 | * published by the Free Software Foundation. | |
9 | */ | |
10 | ||
11 | #include <linux/dma-mapping.h> | |
12 | #include <linux/delay.h> | |
13 | #include <linux/errno.h> | |
14 | #include <linux/fs.h> | |
15 | #include <linux/i2c.h> | |
16 | #include <linux/init.h> | |
17 | #include <linux/interrupt.h> | |
18 | #include <linux/kernel.h> | |
19 | #include <linux/platform_device.h> | |
20 | #include <linux/pm_runtime.h> | |
3b23db39 | 21 | #include <linux/slab.h> |
a81fb9b2 | 22 | #include <linux/videodev2.h> |
7a707b89 | 23 | #include <linux/module.h> |
a81fb9b2 | 24 | |
d647f0b7 | 25 | #include <media/drv-intf/sh_vou.h> |
a81fb9b2 GL |
26 | #include <media/v4l2-common.h> |
27 | #include <media/v4l2-device.h> | |
28 | #include <media/v4l2-ioctl.h> | |
29 | #include <media/v4l2-mediabus.h> | |
2d700715 | 30 | #include <media/videobuf2-v4l2.h> |
57af3ad5 | 31 | #include <media/videobuf2-dma-contig.h> |
a81fb9b2 GL |
32 | |
33 | /* Mirror addresses are not available for all registers */ | |
34 | #define VOUER 0 | |
35 | #define VOUCR 4 | |
36 | #define VOUSTR 8 | |
37 | #define VOUVCR 0xc | |
38 | #define VOUISR 0x10 | |
39 | #define VOUBCR 0x14 | |
40 | #define VOUDPR 0x18 | |
41 | #define VOUDSR 0x1c | |
42 | #define VOUVPR 0x20 | |
43 | #define VOUIR 0x24 | |
44 | #define VOUSRR 0x28 | |
45 | #define VOUMSR 0x2c | |
46 | #define VOUHIR 0x30 | |
47 | #define VOUDFR 0x34 | |
48 | #define VOUAD1R 0x38 | |
49 | #define VOUAD2R 0x3c | |
50 | #define VOUAIR 0x40 | |
51 | #define VOUSWR 0x44 | |
52 | #define VOURCR 0x48 | |
53 | #define VOURPR 0x50 | |
54 | ||
55 | enum sh_vou_status { | |
56 | SH_VOU_IDLE, | |
57 | SH_VOU_INITIALISING, | |
58 | SH_VOU_RUNNING, | |
59 | }; | |
60 | ||
57af3ad5 | 61 | #define VOU_MIN_IMAGE_WIDTH 16 |
a81fb9b2 | 62 | #define VOU_MAX_IMAGE_WIDTH 720 |
57af3ad5 HV |
63 | #define VOU_MIN_IMAGE_HEIGHT 16 |
64 | ||
65 | struct sh_vou_buffer { | |
2d700715 | 66 | struct vb2_v4l2_buffer vb; |
57af3ad5 HV |
67 | struct list_head list; |
68 | }; | |
69 | ||
2d700715 JS |
70 | static inline struct |
71 | sh_vou_buffer *to_sh_vou_buffer(struct vb2_v4l2_buffer *vb2) | |
57af3ad5 HV |
72 | { |
73 | return container_of(vb2, struct sh_vou_buffer, vb); | |
74 | } | |
a81fb9b2 GL |
75 | |
76 | struct sh_vou_device { | |
77 | struct v4l2_device v4l2_dev; | |
d079f99f | 78 | struct video_device vdev; |
a81fb9b2 GL |
79 | struct sh_vou_pdata *pdata; |
80 | spinlock_t lock; | |
81 | void __iomem *base; | |
82 | /* State information */ | |
83 | struct v4l2_pix_format pix; | |
84 | struct v4l2_rect rect; | |
57af3ad5 | 85 | struct list_head buf_list; |
a81fb9b2 GL |
86 | v4l2_std_id std; |
87 | int pix_idx; | |
57af3ad5 HV |
88 | struct vb2_queue queue; |
89 | struct vb2_alloc_ctx *alloc_ctx; | |
90 | struct sh_vou_buffer *active; | |
a81fb9b2 | 91 | enum sh_vou_status status; |
57af3ad5 | 92 | unsigned sequence; |
69756693 | 93 | struct mutex fop_lock; |
a81fb9b2 GL |
94 | }; |
95 | ||
a81fb9b2 GL |
96 | /* Register access routines for sides A, B and mirror addresses */ |
97 | static void sh_vou_reg_a_write(struct sh_vou_device *vou_dev, unsigned int reg, | |
98 | u32 value) | |
99 | { | |
100 | __raw_writel(value, vou_dev->base + reg); | |
101 | } | |
102 | ||
103 | static void sh_vou_reg_ab_write(struct sh_vou_device *vou_dev, unsigned int reg, | |
104 | u32 value) | |
105 | { | |
106 | __raw_writel(value, vou_dev->base + reg); | |
107 | __raw_writel(value, vou_dev->base + reg + 0x1000); | |
108 | } | |
109 | ||
110 | static void sh_vou_reg_m_write(struct sh_vou_device *vou_dev, unsigned int reg, | |
111 | u32 value) | |
112 | { | |
113 | __raw_writel(value, vou_dev->base + reg + 0x2000); | |
114 | } | |
115 | ||
116 | static u32 sh_vou_reg_a_read(struct sh_vou_device *vou_dev, unsigned int reg) | |
117 | { | |
118 | return __raw_readl(vou_dev->base + reg); | |
119 | } | |
120 | ||
121 | static void sh_vou_reg_a_set(struct sh_vou_device *vou_dev, unsigned int reg, | |
122 | u32 value, u32 mask) | |
123 | { | |
124 | u32 old = __raw_readl(vou_dev->base + reg); | |
125 | ||
126 | value = (value & mask) | (old & ~mask); | |
127 | __raw_writel(value, vou_dev->base + reg); | |
128 | } | |
129 | ||
130 | static void sh_vou_reg_b_set(struct sh_vou_device *vou_dev, unsigned int reg, | |
131 | u32 value, u32 mask) | |
132 | { | |
133 | sh_vou_reg_a_set(vou_dev, reg + 0x1000, value, mask); | |
134 | } | |
135 | ||
136 | static void sh_vou_reg_ab_set(struct sh_vou_device *vou_dev, unsigned int reg, | |
137 | u32 value, u32 mask) | |
138 | { | |
139 | sh_vou_reg_a_set(vou_dev, reg, value, mask); | |
140 | sh_vou_reg_b_set(vou_dev, reg, value, mask); | |
141 | } | |
142 | ||
143 | struct sh_vou_fmt { | |
144 | u32 pfmt; | |
145 | char *desc; | |
146 | unsigned char bpp; | |
5c3edcb2 | 147 | unsigned char bpl; |
a81fb9b2 GL |
148 | unsigned char rgb; |
149 | unsigned char yf; | |
150 | unsigned char pkf; | |
151 | }; | |
152 | ||
153 | /* Further pixel formats can be added */ | |
154 | static struct sh_vou_fmt vou_fmt[] = { | |
155 | { | |
156 | .pfmt = V4L2_PIX_FMT_NV12, | |
157 | .bpp = 12, | |
5c3edcb2 | 158 | .bpl = 1, |
a81fb9b2 GL |
159 | .desc = "YVU420 planar", |
160 | .yf = 0, | |
161 | .rgb = 0, | |
162 | }, | |
163 | { | |
164 | .pfmt = V4L2_PIX_FMT_NV16, | |
165 | .bpp = 16, | |
5c3edcb2 | 166 | .bpl = 1, |
a81fb9b2 GL |
167 | .desc = "YVYU planar", |
168 | .yf = 1, | |
169 | .rgb = 0, | |
170 | }, | |
171 | { | |
172 | .pfmt = V4L2_PIX_FMT_RGB24, | |
173 | .bpp = 24, | |
5c3edcb2 | 174 | .bpl = 3, |
a81fb9b2 GL |
175 | .desc = "RGB24", |
176 | .pkf = 2, | |
177 | .rgb = 1, | |
178 | }, | |
179 | { | |
180 | .pfmt = V4L2_PIX_FMT_RGB565, | |
181 | .bpp = 16, | |
5c3edcb2 | 182 | .bpl = 2, |
a81fb9b2 GL |
183 | .desc = "RGB565", |
184 | .pkf = 3, | |
185 | .rgb = 1, | |
186 | }, | |
187 | { | |
188 | .pfmt = V4L2_PIX_FMT_RGB565X, | |
189 | .bpp = 16, | |
5c3edcb2 | 190 | .bpl = 2, |
a81fb9b2 GL |
191 | .desc = "RGB565 byteswapped", |
192 | .pkf = 3, | |
193 | .rgb = 1, | |
194 | }, | |
195 | }; | |
196 | ||
197 | static void sh_vou_schedule_next(struct sh_vou_device *vou_dev, | |
2d700715 | 198 | struct vb2_v4l2_buffer *vbuf) |
a81fb9b2 GL |
199 | { |
200 | dma_addr_t addr1, addr2; | |
201 | ||
2d700715 | 202 | addr1 = vb2_dma_contig_plane_dma_addr(&vbuf->vb2_buf, 0); |
a81fb9b2 GL |
203 | switch (vou_dev->pix.pixelformat) { |
204 | case V4L2_PIX_FMT_NV12: | |
205 | case V4L2_PIX_FMT_NV16: | |
206 | addr2 = addr1 + vou_dev->pix.width * vou_dev->pix.height; | |
207 | break; | |
208 | default: | |
209 | addr2 = 0; | |
210 | } | |
211 | ||
212 | sh_vou_reg_m_write(vou_dev, VOUAD1R, addr1); | |
213 | sh_vou_reg_m_write(vou_dev, VOUAD2R, addr2); | |
214 | } | |
215 | ||
57af3ad5 | 216 | static void sh_vou_stream_config(struct sh_vou_device *vou_dev) |
a81fb9b2 GL |
217 | { |
218 | unsigned int row_coeff; | |
219 | #ifdef __LITTLE_ENDIAN | |
220 | u32 dataswap = 7; | |
221 | #else | |
222 | u32 dataswap = 0; | |
223 | #endif | |
224 | ||
225 | switch (vou_dev->pix.pixelformat) { | |
bc1ebd70 | 226 | default: |
a81fb9b2 GL |
227 | case V4L2_PIX_FMT_NV12: |
228 | case V4L2_PIX_FMT_NV16: | |
229 | row_coeff = 1; | |
230 | break; | |
231 | case V4L2_PIX_FMT_RGB565: | |
232 | dataswap ^= 1; | |
233 | case V4L2_PIX_FMT_RGB565X: | |
234 | row_coeff = 2; | |
235 | break; | |
236 | case V4L2_PIX_FMT_RGB24: | |
237 | row_coeff = 3; | |
238 | break; | |
239 | } | |
240 | ||
241 | sh_vou_reg_a_write(vou_dev, VOUSWR, dataswap); | |
242 | sh_vou_reg_ab_write(vou_dev, VOUAIR, vou_dev->pix.width * row_coeff); | |
a81fb9b2 GL |
243 | } |
244 | ||
69756693 | 245 | /* Locking: caller holds fop_lock mutex */ |
df9ecb0c | 246 | static int sh_vou_queue_setup(struct vb2_queue *vq, |
57af3ad5 HV |
247 | unsigned int *nbuffers, unsigned int *nplanes, |
248 | unsigned int sizes[], void *alloc_ctxs[]) | |
a81fb9b2 | 249 | { |
57af3ad5 HV |
250 | struct sh_vou_device *vou_dev = vb2_get_drv_priv(vq); |
251 | struct v4l2_pix_format *pix = &vou_dev->pix; | |
252 | int bytes_per_line = vou_fmt[vou_dev->pix_idx].bpp * pix->width / 8; | |
a81fb9b2 | 253 | |
57af3ad5 | 254 | dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); |
a81fb9b2 | 255 | |
57af3ad5 | 256 | alloc_ctxs[0] = vou_dev->alloc_ctx; |
df9ecb0c HV |
257 | if (*nplanes) |
258 | return sizes[0] < pix->height * bytes_per_line ? -EINVAL : 0; | |
259 | *nplanes = 1; | |
260 | sizes[0] = pix->height * bytes_per_line; | |
a81fb9b2 GL |
261 | return 0; |
262 | } | |
263 | ||
57af3ad5 | 264 | static int sh_vou_buf_prepare(struct vb2_buffer *vb) |
a81fb9b2 | 265 | { |
57af3ad5 | 266 | struct sh_vou_device *vou_dev = vb2_get_drv_priv(vb->vb2_queue); |
a81fb9b2 | 267 | struct v4l2_pix_format *pix = &vou_dev->pix; |
57af3ad5 HV |
268 | unsigned bytes_per_line = vou_fmt[vou_dev->pix_idx].bpp * pix->width / 8; |
269 | unsigned size = pix->height * bytes_per_line; | |
a81fb9b2 | 270 | |
d899eddd | 271 | dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); |
a81fb9b2 | 272 | |
57af3ad5 | 273 | if (vb2_plane_size(vb, 0) < size) { |
a81fb9b2 | 274 | /* User buffer too small */ |
57af3ad5 HV |
275 | dev_warn(vou_dev->v4l2_dev.dev, "buffer too small (%lu < %u)\n", |
276 | vb2_plane_size(vb, 0), size); | |
a81fb9b2 GL |
277 | return -EINVAL; |
278 | } | |
279 | ||
57af3ad5 | 280 | vb2_set_plane_payload(vb, 0, size); |
a81fb9b2 GL |
281 | return 0; |
282 | } | |
283 | ||
69756693 | 284 | /* Locking: caller holds fop_lock mutex and vq->irqlock spinlock */ |
57af3ad5 | 285 | static void sh_vou_buf_queue(struct vb2_buffer *vb) |
a81fb9b2 | 286 | { |
2d700715 | 287 | struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
57af3ad5 | 288 | struct sh_vou_device *vou_dev = vb2_get_drv_priv(vb->vb2_queue); |
2d700715 | 289 | struct sh_vou_buffer *shbuf = to_sh_vou_buffer(vbuf); |
57af3ad5 | 290 | unsigned long flags; |
a81fb9b2 | 291 | |
57af3ad5 HV |
292 | spin_lock_irqsave(&vou_dev->lock, flags); |
293 | list_add_tail(&shbuf->list, &vou_dev->buf_list); | |
294 | spin_unlock_irqrestore(&vou_dev->lock, flags); | |
295 | } | |
a81fb9b2 | 296 | |
57af3ad5 HV |
297 | static int sh_vou_start_streaming(struct vb2_queue *vq, unsigned int count) |
298 | { | |
299 | struct sh_vou_device *vou_dev = vb2_get_drv_priv(vq); | |
300 | struct sh_vou_buffer *buf, *node; | |
301 | int ret; | |
302 | ||
303 | vou_dev->sequence = 0; | |
304 | ret = v4l2_device_call_until_err(&vou_dev->v4l2_dev, 0, | |
305 | video, s_stream, 1); | |
306 | if (ret < 0 && ret != -ENOIOCTLCMD) { | |
307 | list_for_each_entry_safe(buf, node, &vou_dev->buf_list, list) { | |
2d700715 JS |
308 | vb2_buffer_done(&buf->vb.vb2_buf, |
309 | VB2_BUF_STATE_QUEUED); | |
57af3ad5 HV |
310 | list_del(&buf->list); |
311 | } | |
312 | vou_dev->active = NULL; | |
313 | return ret; | |
a81fb9b2 | 314 | } |
57af3ad5 HV |
315 | |
316 | buf = list_entry(vou_dev->buf_list.next, struct sh_vou_buffer, list); | |
317 | ||
318 | vou_dev->active = buf; | |
319 | ||
320 | /* Start from side A: we use mirror addresses, so, set B */ | |
321 | sh_vou_reg_a_write(vou_dev, VOURPR, 1); | |
322 | dev_dbg(vou_dev->v4l2_dev.dev, "%s: first buffer status 0x%x\n", | |
323 | __func__, sh_vou_reg_a_read(vou_dev, VOUSTR)); | |
324 | sh_vou_schedule_next(vou_dev, &buf->vb); | |
325 | ||
326 | buf = list_entry(buf->list.next, struct sh_vou_buffer, list); | |
327 | ||
328 | /* Second buffer - initialise register side B */ | |
329 | sh_vou_reg_a_write(vou_dev, VOURPR, 0); | |
330 | sh_vou_schedule_next(vou_dev, &buf->vb); | |
331 | ||
332 | /* Register side switching with frame VSYNC */ | |
333 | sh_vou_reg_a_write(vou_dev, VOURCR, 5); | |
334 | ||
335 | sh_vou_stream_config(vou_dev); | |
336 | /* Enable End-of-Frame (VSYNC) interrupts */ | |
337 | sh_vou_reg_a_write(vou_dev, VOUIR, 0x10004); | |
338 | ||
339 | /* Two buffers on the queue - activate the hardware */ | |
340 | vou_dev->status = SH_VOU_RUNNING; | |
341 | sh_vou_reg_a_write(vou_dev, VOUER, 0x107); | |
342 | return 0; | |
a81fb9b2 GL |
343 | } |
344 | ||
57af3ad5 | 345 | static void sh_vou_stop_streaming(struct vb2_queue *vq) |
a81fb9b2 | 346 | { |
57af3ad5 HV |
347 | struct sh_vou_device *vou_dev = vb2_get_drv_priv(vq); |
348 | struct sh_vou_buffer *buf, *node; | |
a81fb9b2 GL |
349 | unsigned long flags; |
350 | ||
57af3ad5 HV |
351 | v4l2_device_call_until_err(&vou_dev->v4l2_dev, 0, |
352 | video, s_stream, 0); | |
353 | /* disable output */ | |
354 | sh_vou_reg_a_set(vou_dev, VOUER, 0, 1); | |
355 | /* ...but the current frame will complete */ | |
356 | sh_vou_reg_a_set(vou_dev, VOUIR, 0, 0x30000); | |
357 | msleep(50); | |
a81fb9b2 | 358 | spin_lock_irqsave(&vou_dev->lock, flags); |
57af3ad5 | 359 | list_for_each_entry_safe(buf, node, &vou_dev->buf_list, list) { |
2d700715 | 360 | vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); |
57af3ad5 | 361 | list_del(&buf->list); |
a81fb9b2 | 362 | } |
57af3ad5 | 363 | vou_dev->active = NULL; |
a81fb9b2 | 364 | spin_unlock_irqrestore(&vou_dev->lock, flags); |
a81fb9b2 GL |
365 | } |
366 | ||
57af3ad5 HV |
367 | static struct vb2_ops sh_vou_qops = { |
368 | .queue_setup = sh_vou_queue_setup, | |
369 | .buf_prepare = sh_vou_buf_prepare, | |
370 | .buf_queue = sh_vou_buf_queue, | |
371 | .start_streaming = sh_vou_start_streaming, | |
372 | .stop_streaming = sh_vou_stop_streaming, | |
373 | .wait_prepare = vb2_ops_wait_prepare, | |
374 | .wait_finish = vb2_ops_wait_finish, | |
a81fb9b2 GL |
375 | }; |
376 | ||
377 | /* Video IOCTLs */ | |
378 | static int sh_vou_querycap(struct file *file, void *priv, | |
379 | struct v4l2_capability *cap) | |
380 | { | |
d899eddd | 381 | struct sh_vou_device *vou_dev = video_drvdata(file); |
a81fb9b2 | 382 | |
d899eddd | 383 | dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); |
a81fb9b2 GL |
384 | |
385 | strlcpy(cap->card, "SuperH VOU", sizeof(cap->card)); | |
d8046ee0 HV |
386 | strlcpy(cap->driver, "sh-vou", sizeof(cap->driver)); |
387 | strlcpy(cap->bus_info, "platform:sh-vou", sizeof(cap->bus_info)); | |
57af3ad5 HV |
388 | cap->device_caps = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_READWRITE | |
389 | V4L2_CAP_STREAMING; | |
a020c747 | 390 | cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; |
a81fb9b2 GL |
391 | return 0; |
392 | } | |
393 | ||
394 | /* Enumerate formats, that the device can accept from the user */ | |
395 | static int sh_vou_enum_fmt_vid_out(struct file *file, void *priv, | |
396 | struct v4l2_fmtdesc *fmt) | |
397 | { | |
d899eddd | 398 | struct sh_vou_device *vou_dev = video_drvdata(file); |
a81fb9b2 GL |
399 | |
400 | if (fmt->index >= ARRAY_SIZE(vou_fmt)) | |
401 | return -EINVAL; | |
402 | ||
d899eddd | 403 | dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); |
a81fb9b2 GL |
404 | |
405 | fmt->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; | |
406 | strlcpy(fmt->description, vou_fmt[fmt->index].desc, | |
407 | sizeof(fmt->description)); | |
408 | fmt->pixelformat = vou_fmt[fmt->index].pfmt; | |
409 | ||
410 | return 0; | |
411 | } | |
412 | ||
413 | static int sh_vou_g_fmt_vid_out(struct file *file, void *priv, | |
414 | struct v4l2_format *fmt) | |
415 | { | |
fd51625d | 416 | struct sh_vou_device *vou_dev = video_drvdata(file); |
a81fb9b2 GL |
417 | |
418 | dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); | |
419 | ||
420 | fmt->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; | |
421 | fmt->fmt.pix = vou_dev->pix; | |
422 | ||
423 | return 0; | |
424 | } | |
425 | ||
426 | static const unsigned char vou_scale_h_num[] = {1, 9, 2, 9, 4}; | |
427 | static const unsigned char vou_scale_h_den[] = {1, 8, 1, 4, 1}; | |
428 | static const unsigned char vou_scale_h_fld[] = {0, 2, 1, 3}; | |
429 | static const unsigned char vou_scale_v_num[] = {1, 2, 4}; | |
430 | static const unsigned char vou_scale_v_den[] = {1, 1, 1}; | |
431 | static const unsigned char vou_scale_v_fld[] = {0, 1}; | |
432 | ||
433 | static void sh_vou_configure_geometry(struct sh_vou_device *vou_dev, | |
434 | int pix_idx, int w_idx, int h_idx) | |
435 | { | |
436 | struct sh_vou_fmt *fmt = vou_fmt + pix_idx; | |
a622cc51 | 437 | unsigned int black_left, black_top, width_max, |
a81fb9b2 GL |
438 | frame_in_height, frame_out_height, frame_out_top; |
439 | struct v4l2_rect *rect = &vou_dev->rect; | |
440 | struct v4l2_pix_format *pix = &vou_dev->pix; | |
441 | u32 vouvcr = 0, dsr_h, dsr_v; | |
442 | ||
443 | if (vou_dev->std & V4L2_STD_525_60) { | |
444 | width_max = 858; | |
a622cc51 | 445 | /* height_max = 262; */ |
a81fb9b2 GL |
446 | } else { |
447 | width_max = 864; | |
a622cc51 | 448 | /* height_max = 312; */ |
a81fb9b2 GL |
449 | } |
450 | ||
451 | frame_in_height = pix->height / 2; | |
452 | frame_out_height = rect->height / 2; | |
453 | frame_out_top = rect->top / 2; | |
454 | ||
455 | /* | |
456 | * Cropping scheme: max useful image is 720x480, and the total video | |
457 | * area is 858x525 (NTSC) or 864x625 (PAL). AK8813 / 8814 starts | |
458 | * sampling data beginning with fixed 276th (NTSC) / 288th (PAL) clock, | |
459 | * of which the first 33 / 25 clocks HSYNC must be held active. This | |
460 | * has to be configured in CR[HW]. 1 pixel equals 2 clock periods. | |
461 | * This gives CR[HW] = 16 / 12, VPR[HVP] = 138 / 144, which gives | |
462 | * exactly 858 - 138 = 864 - 144 = 720! We call the out-of-display area, | |
463 | * beyond DSR, specified on the left and top by the VPR register "black | |
464 | * pixels" and out-of-image area (DPR) "background pixels." We fix VPR | |
465 | * at 138 / 144 : 20, because that's the HSYNC timing, that our first | |
466 | * client requires, and that's exactly what leaves us 720 pixels for the | |
467 | * image; we leave VPR[VVP] at default 20 for now, because the client | |
468 | * doesn't seem to have any special requirements for it. Otherwise we | |
469 | * could also set it to max - 240 = 22 / 72. Thus VPR depends only on | |
470 | * the selected standard, and DPR and DSR are selected according to | |
471 | * cropping. Q: how does the client detect the first valid line? Does | |
472 | * HSYNC stay inactive during invalid (black) lines? | |
473 | */ | |
474 | black_left = width_max - VOU_MAX_IMAGE_WIDTH; | |
475 | black_top = 20; | |
476 | ||
477 | dsr_h = rect->width + rect->left; | |
478 | dsr_v = frame_out_height + frame_out_top; | |
479 | ||
480 | dev_dbg(vou_dev->v4l2_dev.dev, | |
481 | "image %ux%u, black %u:%u, offset %u:%u, display %ux%u\n", | |
482 | pix->width, frame_in_height, black_left, black_top, | |
483 | rect->left, frame_out_top, dsr_h, dsr_v); | |
484 | ||
485 | /* VOUISR height - half of a frame height in frame mode */ | |
486 | sh_vou_reg_ab_write(vou_dev, VOUISR, (pix->width << 16) | frame_in_height); | |
487 | sh_vou_reg_ab_write(vou_dev, VOUVPR, (black_left << 16) | black_top); | |
488 | sh_vou_reg_ab_write(vou_dev, VOUDPR, (rect->left << 16) | frame_out_top); | |
489 | sh_vou_reg_ab_write(vou_dev, VOUDSR, (dsr_h << 16) | dsr_v); | |
490 | ||
491 | /* | |
492 | * if necessary, we could set VOUHIR to | |
493 | * max(black_left + dsr_h, width_max) here | |
494 | */ | |
495 | ||
496 | if (w_idx) | |
497 | vouvcr |= (1 << 15) | (vou_scale_h_fld[w_idx - 1] << 4); | |
498 | if (h_idx) | |
499 | vouvcr |= (1 << 14) | vou_scale_v_fld[h_idx - 1]; | |
500 | ||
501 | dev_dbg(vou_dev->v4l2_dev.dev, "%s: scaling 0x%x\n", fmt->desc, vouvcr); | |
502 | ||
503 | /* To produce a colour bar for testing set bit 23 of VOUVCR */ | |
504 | sh_vou_reg_ab_write(vou_dev, VOUVCR, vouvcr); | |
505 | sh_vou_reg_ab_write(vou_dev, VOUDFR, | |
506 | fmt->pkf | (fmt->yf << 8) | (fmt->rgb << 16)); | |
507 | } | |
508 | ||
509 | struct sh_vou_geometry { | |
510 | struct v4l2_rect output; | |
511 | unsigned int in_width; | |
512 | unsigned int in_height; | |
513 | int scale_idx_h; | |
514 | int scale_idx_v; | |
515 | }; | |
516 | ||
517 | /* | |
518 | * Find input geometry, that we can use to produce output, closest to the | |
519 | * requested rectangle, using VOU scaling | |
520 | */ | |
521 | static void vou_adjust_input(struct sh_vou_geometry *geo, v4l2_std_id std) | |
522 | { | |
523 | /* The compiler cannot know, that best and idx will indeed be set */ | |
765fe17c | 524 | unsigned int best_err = UINT_MAX, best = 0, img_height_max; |
a81fb9b2 GL |
525 | int i, idx = 0; |
526 | ||
765fe17c GL |
527 | if (std & V4L2_STD_525_60) |
528 | img_height_max = 480; | |
529 | else | |
530 | img_height_max = 576; | |
a81fb9b2 GL |
531 | |
532 | /* Image width must be a multiple of 4 */ | |
57af3ad5 HV |
533 | v4l_bound_align_image(&geo->in_width, |
534 | VOU_MIN_IMAGE_WIDTH, VOU_MAX_IMAGE_WIDTH, 2, | |
535 | &geo->in_height, | |
536 | VOU_MIN_IMAGE_HEIGHT, img_height_max, 1, 0); | |
a81fb9b2 GL |
537 | |
538 | /* Select scales to come as close as possible to the output image */ | |
539 | for (i = ARRAY_SIZE(vou_scale_h_num) - 1; i >= 0; i--) { | |
540 | unsigned int err; | |
541 | unsigned int found = geo->output.width * vou_scale_h_den[i] / | |
542 | vou_scale_h_num[i]; | |
543 | ||
544 | if (found > VOU_MAX_IMAGE_WIDTH) | |
545 | /* scales increase */ | |
546 | break; | |
547 | ||
548 | err = abs(found - geo->in_width); | |
549 | if (err < best_err) { | |
550 | best_err = err; | |
551 | idx = i; | |
552 | best = found; | |
553 | } | |
554 | if (!err) | |
555 | break; | |
556 | } | |
557 | ||
558 | geo->in_width = best; | |
559 | geo->scale_idx_h = idx; | |
560 | ||
561 | best_err = UINT_MAX; | |
562 | ||
563 | /* This loop can be replaced with one division */ | |
564 | for (i = ARRAY_SIZE(vou_scale_v_num) - 1; i >= 0; i--) { | |
565 | unsigned int err; | |
566 | unsigned int found = geo->output.height * vou_scale_v_den[i] / | |
567 | vou_scale_v_num[i]; | |
568 | ||
765fe17c | 569 | if (found > img_height_max) |
a81fb9b2 GL |
570 | /* scales increase */ |
571 | break; | |
572 | ||
573 | err = abs(found - geo->in_height); | |
574 | if (err < best_err) { | |
575 | best_err = err; | |
576 | idx = i; | |
577 | best = found; | |
578 | } | |
579 | if (!err) | |
580 | break; | |
581 | } | |
582 | ||
583 | geo->in_height = best; | |
584 | geo->scale_idx_v = idx; | |
585 | } | |
586 | ||
587 | /* | |
588 | * Find output geometry, that we can produce, using VOU scaling, closest to | |
589 | * the requested rectangle | |
590 | */ | |
591 | static void vou_adjust_output(struct sh_vou_geometry *geo, v4l2_std_id std) | |
592 | { | |
bc1ebd70 GL |
593 | unsigned int best_err = UINT_MAX, best = geo->in_width, |
594 | width_max, height_max, img_height_max; | |
5ac417ef | 595 | int i, idx_h = 0, idx_v = 0; |
a81fb9b2 GL |
596 | |
597 | if (std & V4L2_STD_525_60) { | |
598 | width_max = 858; | |
599 | height_max = 262 * 2; | |
765fe17c | 600 | img_height_max = 480; |
a81fb9b2 GL |
601 | } else { |
602 | width_max = 864; | |
603 | height_max = 312 * 2; | |
765fe17c | 604 | img_height_max = 576; |
a81fb9b2 GL |
605 | } |
606 | ||
607 | /* Select scales to come as close as possible to the output image */ | |
608 | for (i = 0; i < ARRAY_SIZE(vou_scale_h_num); i++) { | |
609 | unsigned int err; | |
610 | unsigned int found = geo->in_width * vou_scale_h_num[i] / | |
611 | vou_scale_h_den[i]; | |
612 | ||
613 | if (found > VOU_MAX_IMAGE_WIDTH) | |
614 | /* scales increase */ | |
615 | break; | |
616 | ||
617 | err = abs(found - geo->output.width); | |
618 | if (err < best_err) { | |
619 | best_err = err; | |
5ac417ef | 620 | idx_h = i; |
a81fb9b2 GL |
621 | best = found; |
622 | } | |
623 | if (!err) | |
624 | break; | |
625 | } | |
626 | ||
627 | geo->output.width = best; | |
5ac417ef | 628 | geo->scale_idx_h = idx_h; |
a81fb9b2 GL |
629 | if (geo->output.left + best > width_max) |
630 | geo->output.left = width_max - best; | |
631 | ||
632 | pr_debug("%s(): W %u * %u/%u = %u\n", __func__, geo->in_width, | |
5ac417ef | 633 | vou_scale_h_num[idx_h], vou_scale_h_den[idx_h], best); |
a81fb9b2 GL |
634 | |
635 | best_err = UINT_MAX; | |
636 | ||
637 | /* This loop can be replaced with one division */ | |
638 | for (i = 0; i < ARRAY_SIZE(vou_scale_v_num); i++) { | |
639 | unsigned int err; | |
640 | unsigned int found = geo->in_height * vou_scale_v_num[i] / | |
641 | vou_scale_v_den[i]; | |
642 | ||
765fe17c | 643 | if (found > img_height_max) |
a81fb9b2 GL |
644 | /* scales increase */ |
645 | break; | |
646 | ||
647 | err = abs(found - geo->output.height); | |
648 | if (err < best_err) { | |
649 | best_err = err; | |
5ac417ef | 650 | idx_v = i; |
a81fb9b2 GL |
651 | best = found; |
652 | } | |
653 | if (!err) | |
654 | break; | |
655 | } | |
656 | ||
657 | geo->output.height = best; | |
5ac417ef | 658 | geo->scale_idx_v = idx_v; |
a81fb9b2 GL |
659 | if (geo->output.top + best > height_max) |
660 | geo->output.top = height_max - best; | |
661 | ||
662 | pr_debug("%s(): H %u * %u/%u = %u\n", __func__, geo->in_height, | |
5ac417ef | 663 | vou_scale_v_num[idx_v], vou_scale_v_den[idx_v], best); |
a81fb9b2 GL |
664 | } |
665 | ||
66853ec4 HV |
666 | static int sh_vou_try_fmt_vid_out(struct file *file, void *priv, |
667 | struct v4l2_format *fmt) | |
a81fb9b2 | 668 | { |
fd51625d | 669 | struct sh_vou_device *vou_dev = video_drvdata(file); |
a81fb9b2 | 670 | struct v4l2_pix_format *pix = &fmt->fmt.pix; |
765fe17c | 671 | unsigned int img_height_max; |
a81fb9b2 | 672 | int pix_idx; |
a81fb9b2 | 673 | |
66853ec4 | 674 | dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); |
a81fb9b2 | 675 | |
66853ec4 HV |
676 | pix->field = V4L2_FIELD_INTERLACED; |
677 | pix->colorspace = V4L2_COLORSPACE_SMPTE170M; | |
678 | pix->ycbcr_enc = pix->quantization = 0; | |
a81fb9b2 GL |
679 | |
680 | for (pix_idx = 0; pix_idx < ARRAY_SIZE(vou_fmt); pix_idx++) | |
681 | if (vou_fmt[pix_idx].pfmt == pix->pixelformat) | |
682 | break; | |
683 | ||
684 | if (pix_idx == ARRAY_SIZE(vou_fmt)) | |
685 | return -EINVAL; | |
686 | ||
765fe17c GL |
687 | if (vou_dev->std & V4L2_STD_525_60) |
688 | img_height_max = 480; | |
689 | else | |
690 | img_height_max = 576; | |
691 | ||
57af3ad5 HV |
692 | v4l_bound_align_image(&pix->width, |
693 | VOU_MIN_IMAGE_WIDTH, VOU_MAX_IMAGE_WIDTH, 2, | |
694 | &pix->height, | |
695 | VOU_MIN_IMAGE_HEIGHT, img_height_max, 1, 0); | |
5c3edcb2 HV |
696 | pix->bytesperline = pix->width * vou_fmt[pix_idx].bpl; |
697 | pix->sizeimage = pix->height * ((pix->width * vou_fmt[pix_idx].bpp) >> 3); | |
66853ec4 HV |
698 | |
699 | return 0; | |
700 | } | |
701 | ||
57af3ad5 HV |
702 | static int sh_vou_set_fmt_vid_out(struct sh_vou_device *vou_dev, |
703 | struct v4l2_pix_format *pix) | |
66853ec4 | 704 | { |
66853ec4 HV |
705 | unsigned int img_height_max; |
706 | struct sh_vou_geometry geo; | |
707 | struct v4l2_subdev_format format = { | |
708 | .which = V4L2_SUBDEV_FORMAT_ACTIVE, | |
709 | /* Revisit: is this the correct code? */ | |
710 | .format.code = MEDIA_BUS_FMT_YUYV8_2X8, | |
711 | .format.field = V4L2_FIELD_INTERLACED, | |
712 | .format.colorspace = V4L2_COLORSPACE_SMPTE170M, | |
713 | }; | |
714 | struct v4l2_mbus_framefmt *mbfmt = &format.format; | |
66853ec4 | 715 | int pix_idx; |
57af3ad5 | 716 | int ret; |
66853ec4 | 717 | |
57af3ad5 HV |
718 | if (vb2_is_busy(&vou_dev->queue)) |
719 | return -EBUSY; | |
66853ec4 HV |
720 | |
721 | for (pix_idx = 0; pix_idx < ARRAY_SIZE(vou_fmt); pix_idx++) | |
722 | if (vou_fmt[pix_idx].pfmt == pix->pixelformat) | |
723 | break; | |
a81fb9b2 GL |
724 | |
725 | geo.in_width = pix->width; | |
726 | geo.in_height = pix->height; | |
727 | geo.output = vou_dev->rect; | |
728 | ||
729 | vou_adjust_output(&geo, vou_dev->std); | |
730 | ||
ebf984bb HV |
731 | mbfmt->width = geo.output.width; |
732 | mbfmt->height = geo.output.height; | |
733 | ret = v4l2_device_call_until_err(&vou_dev->v4l2_dev, 0, pad, | |
734 | set_fmt, NULL, &format); | |
a81fb9b2 GL |
735 | /* Must be implemented, so, don't check for -ENOIOCTLCMD */ |
736 | if (ret < 0) | |
737 | return ret; | |
738 | ||
739 | dev_dbg(vou_dev->v4l2_dev.dev, "%s(): %ux%u -> %ux%u\n", __func__, | |
ebf984bb | 740 | geo.output.width, geo.output.height, mbfmt->width, mbfmt->height); |
a81fb9b2 | 741 | |
66853ec4 HV |
742 | if (vou_dev->std & V4L2_STD_525_60) |
743 | img_height_max = 480; | |
744 | else | |
745 | img_height_max = 576; | |
746 | ||
a81fb9b2 | 747 | /* Sanity checks */ |
ebf984bb HV |
748 | if ((unsigned)mbfmt->width > VOU_MAX_IMAGE_WIDTH || |
749 | (unsigned)mbfmt->height > img_height_max || | |
750 | mbfmt->code != MEDIA_BUS_FMT_YUYV8_2X8) | |
a81fb9b2 GL |
751 | return -EIO; |
752 | ||
ebf984bb HV |
753 | if (mbfmt->width != geo.output.width || |
754 | mbfmt->height != geo.output.height) { | |
755 | geo.output.width = mbfmt->width; | |
756 | geo.output.height = mbfmt->height; | |
a81fb9b2 GL |
757 | |
758 | vou_adjust_input(&geo, vou_dev->std); | |
759 | } | |
760 | ||
761 | /* We tried to preserve output rectangle, but it could have changed */ | |
762 | vou_dev->rect = geo.output; | |
763 | pix->width = geo.in_width; | |
764 | pix->height = geo.in_height; | |
765 | ||
766 | dev_dbg(vou_dev->v4l2_dev.dev, "%s(): %ux%u\n", __func__, | |
767 | pix->width, pix->height); | |
768 | ||
769 | vou_dev->pix_idx = pix_idx; | |
770 | ||
771 | vou_dev->pix = *pix; | |
772 | ||
773 | sh_vou_configure_geometry(vou_dev, pix_idx, | |
774 | geo.scale_idx_h, geo.scale_idx_v); | |
775 | ||
776 | return 0; | |
777 | } | |
778 | ||
57af3ad5 HV |
779 | static int sh_vou_s_fmt_vid_out(struct file *file, void *priv, |
780 | struct v4l2_format *fmt) | |
a81fb9b2 | 781 | { |
fd51625d | 782 | struct sh_vou_device *vou_dev = video_drvdata(file); |
57af3ad5 | 783 | int ret = sh_vou_try_fmt_vid_out(file, priv, fmt); |
a81fb9b2 | 784 | |
57af3ad5 | 785 | if (ret) |
a81fb9b2 | 786 | return ret; |
57af3ad5 | 787 | return sh_vou_set_fmt_vid_out(vou_dev, &fmt->fmt.pix); |
a81fb9b2 GL |
788 | } |
789 | ||
4de00d0e HV |
790 | static int sh_vou_enum_output(struct file *file, void *fh, |
791 | struct v4l2_output *a) | |
792 | { | |
793 | struct sh_vou_device *vou_dev = video_drvdata(file); | |
794 | ||
795 | if (a->index) | |
796 | return -EINVAL; | |
797 | strlcpy(a->name, "Video Out", sizeof(a->name)); | |
798 | a->type = V4L2_OUTPUT_TYPE_ANALOG; | |
799 | a->std = vou_dev->vdev.tvnorms; | |
800 | return 0; | |
801 | } | |
802 | ||
2a1e91a1 | 803 | static int sh_vou_g_output(struct file *file, void *fh, unsigned int *i) |
4de00d0e HV |
804 | { |
805 | *i = 0; | |
806 | return 0; | |
807 | } | |
808 | ||
2a1e91a1 | 809 | static int sh_vou_s_output(struct file *file, void *fh, unsigned int i) |
4de00d0e HV |
810 | { |
811 | return i ? -EINVAL : 0; | |
812 | } | |
813 | ||
a81fb9b2 GL |
814 | static u32 sh_vou_ntsc_mode(enum sh_vou_bus_fmt bus_fmt) |
815 | { | |
816 | switch (bus_fmt) { | |
817 | default: | |
818 | pr_warning("%s(): Invalid bus-format code %d, using default 8-bit\n", | |
819 | __func__, bus_fmt); | |
820 | case SH_VOU_BUS_8BIT: | |
821 | return 1; | |
822 | case SH_VOU_BUS_16BIT: | |
823 | return 0; | |
824 | case SH_VOU_BUS_BT656: | |
825 | return 3; | |
826 | } | |
827 | } | |
828 | ||
314527ac | 829 | static int sh_vou_s_std(struct file *file, void *priv, v4l2_std_id std_id) |
a81fb9b2 | 830 | { |
fd51625d | 831 | struct sh_vou_device *vou_dev = video_drvdata(file); |
a81fb9b2 GL |
832 | int ret; |
833 | ||
314527ac | 834 | dev_dbg(vou_dev->v4l2_dev.dev, "%s(): 0x%llx\n", __func__, std_id); |
a81fb9b2 | 835 | |
57af3ad5 HV |
836 | if (std_id == vou_dev->std) |
837 | return 0; | |
838 | ||
839 | if (vb2_is_busy(&vou_dev->queue)) | |
840 | return -EBUSY; | |
a81fb9b2 GL |
841 | |
842 | ret = v4l2_device_call_until_err(&vou_dev->v4l2_dev, 0, video, | |
314527ac | 843 | s_std_output, std_id); |
a81fb9b2 GL |
844 | /* Shall we continue, if the subdev doesn't support .s_std_output()? */ |
845 | if (ret < 0 && ret != -ENOIOCTLCMD) | |
846 | return ret; | |
847 | ||
57af3ad5 HV |
848 | vou_dev->rect.top = vou_dev->rect.left = 0; |
849 | vou_dev->rect.width = VOU_MAX_IMAGE_WIDTH; | |
850 | if (std_id & V4L2_STD_525_60) { | |
a81fb9b2 GL |
851 | sh_vou_reg_ab_set(vou_dev, VOUCR, |
852 | sh_vou_ntsc_mode(vou_dev->pdata->bus_fmt) << 29, 7 << 29); | |
57af3ad5 HV |
853 | vou_dev->rect.height = 480; |
854 | } else { | |
a81fb9b2 | 855 | sh_vou_reg_ab_set(vou_dev, VOUCR, 5 << 29, 7 << 29); |
57af3ad5 HV |
856 | vou_dev->rect.height = 576; |
857 | } | |
a81fb9b2 | 858 | |
57af3ad5 HV |
859 | vou_dev->pix.width = vou_dev->rect.width; |
860 | vou_dev->pix.height = vou_dev->rect.height; | |
861 | vou_dev->pix.bytesperline = | |
862 | vou_dev->pix.width * vou_fmt[vou_dev->pix_idx].bpl; | |
863 | vou_dev->pix.sizeimage = vou_dev->pix.height * | |
864 | ((vou_dev->pix.width * vou_fmt[vou_dev->pix_idx].bpp) >> 3); | |
314527ac | 865 | vou_dev->std = std_id; |
57af3ad5 | 866 | sh_vou_set_fmt_vid_out(vou_dev, &vou_dev->pix); |
a81fb9b2 GL |
867 | |
868 | return 0; | |
869 | } | |
870 | ||
871 | static int sh_vou_g_std(struct file *file, void *priv, v4l2_std_id *std) | |
872 | { | |
fd51625d | 873 | struct sh_vou_device *vou_dev = video_drvdata(file); |
a81fb9b2 GL |
874 | |
875 | dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); | |
876 | ||
877 | *std = vou_dev->std; | |
878 | ||
879 | return 0; | |
880 | } | |
881 | ||
0b3474f0 HV |
882 | static int sh_vou_log_status(struct file *file, void *priv) |
883 | { | |
884 | struct sh_vou_device *vou_dev = video_drvdata(file); | |
885 | ||
886 | pr_info("VOUER: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUER)); | |
887 | pr_info("VOUCR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUCR)); | |
888 | pr_info("VOUSTR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUSTR)); | |
889 | pr_info("VOUVCR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUVCR)); | |
890 | pr_info("VOUISR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUISR)); | |
891 | pr_info("VOUBCR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUBCR)); | |
892 | pr_info("VOUDPR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUDPR)); | |
893 | pr_info("VOUDSR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUDSR)); | |
894 | pr_info("VOUVPR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUVPR)); | |
895 | pr_info("VOUIR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUIR)); | |
896 | pr_info("VOUSRR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUSRR)); | |
897 | pr_info("VOUMSR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUMSR)); | |
898 | pr_info("VOUHIR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUHIR)); | |
899 | pr_info("VOUDFR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUDFR)); | |
900 | pr_info("VOUAD1R: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUAD1R)); | |
901 | pr_info("VOUAD2R: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUAD2R)); | |
902 | pr_info("VOUAIR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUAIR)); | |
903 | pr_info("VOUSWR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUSWR)); | |
904 | pr_info("VOURCR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOURCR)); | |
905 | pr_info("VOURPR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOURPR)); | |
906 | return 0; | |
907 | } | |
908 | ||
61fbacc1 HV |
909 | static int sh_vou_g_selection(struct file *file, void *fh, |
910 | struct v4l2_selection *sel) | |
a81fb9b2 | 911 | { |
fd51625d | 912 | struct sh_vou_device *vou_dev = video_drvdata(file); |
a81fb9b2 | 913 | |
61fbacc1 HV |
914 | if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) |
915 | return -EINVAL; | |
916 | switch (sel->target) { | |
917 | case V4L2_SEL_TGT_COMPOSE: | |
918 | sel->r = vou_dev->rect; | |
919 | break; | |
920 | case V4L2_SEL_TGT_COMPOSE_DEFAULT: | |
921 | case V4L2_SEL_TGT_COMPOSE_BOUNDS: | |
922 | sel->r.left = 0; | |
923 | sel->r.top = 0; | |
924 | sel->r.width = VOU_MAX_IMAGE_WIDTH; | |
57af3ad5 HV |
925 | if (vou_dev->std & V4L2_STD_525_60) |
926 | sel->r.height = 480; | |
927 | else | |
928 | sel->r.height = 576; | |
61fbacc1 HV |
929 | break; |
930 | default: | |
931 | return -EINVAL; | |
932 | } | |
a81fb9b2 GL |
933 | return 0; |
934 | } | |
935 | ||
936 | /* Assume a dull encoder, do all the work ourselves. */ | |
61fbacc1 HV |
937 | static int sh_vou_s_selection(struct file *file, void *fh, |
938 | struct v4l2_selection *sel) | |
a81fb9b2 | 939 | { |
61fbacc1 | 940 | struct v4l2_rect *rect = &sel->r; |
fd51625d | 941 | struct sh_vou_device *vou_dev = video_drvdata(file); |
a81fb9b2 GL |
942 | struct v4l2_crop sd_crop = {.type = V4L2_BUF_TYPE_VIDEO_OUTPUT}; |
943 | struct v4l2_pix_format *pix = &vou_dev->pix; | |
944 | struct sh_vou_geometry geo; | |
ebf984bb HV |
945 | struct v4l2_subdev_format format = { |
946 | .which = V4L2_SUBDEV_FORMAT_ACTIVE, | |
a81fb9b2 | 947 | /* Revisit: is this the correct code? */ |
ebf984bb HV |
948 | .format.code = MEDIA_BUS_FMT_YUYV8_2X8, |
949 | .format.field = V4L2_FIELD_INTERLACED, | |
950 | .format.colorspace = V4L2_COLORSPACE_SMPTE170M, | |
a81fb9b2 | 951 | }; |
765fe17c | 952 | unsigned int img_height_max; |
a81fb9b2 GL |
953 | int ret; |
954 | ||
61fbacc1 HV |
955 | if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT || |
956 | sel->target != V4L2_SEL_TGT_COMPOSE) | |
a81fb9b2 GL |
957 | return -EINVAL; |
958 | ||
57af3ad5 HV |
959 | if (vb2_is_busy(&vou_dev->queue)) |
960 | return -EBUSY; | |
961 | ||
765fe17c GL |
962 | if (vou_dev->std & V4L2_STD_525_60) |
963 | img_height_max = 480; | |
964 | else | |
965 | img_height_max = 576; | |
966 | ||
57af3ad5 HV |
967 | v4l_bound_align_image(&rect->width, |
968 | VOU_MIN_IMAGE_WIDTH, VOU_MAX_IMAGE_WIDTH, 1, | |
969 | &rect->height, | |
970 | VOU_MIN_IMAGE_HEIGHT, img_height_max, 1, 0); | |
a81fb9b2 GL |
971 | |
972 | if (rect->width + rect->left > VOU_MAX_IMAGE_WIDTH) | |
973 | rect->left = VOU_MAX_IMAGE_WIDTH - rect->width; | |
974 | ||
765fe17c GL |
975 | if (rect->height + rect->top > img_height_max) |
976 | rect->top = img_height_max - rect->height; | |
a81fb9b2 GL |
977 | |
978 | geo.output = *rect; | |
979 | geo.in_width = pix->width; | |
980 | geo.in_height = pix->height; | |
981 | ||
982 | /* Configure the encoder one-to-one, position at 0, ignore errors */ | |
983 | sd_crop.c.width = geo.output.width; | |
984 | sd_crop.c.height = geo.output.height; | |
985 | /* | |
986 | * We first issue a S_CROP, so that the subsequent S_FMT delivers the | |
987 | * final encoder configuration. | |
988 | */ | |
989 | v4l2_device_call_until_err(&vou_dev->v4l2_dev, 0, video, | |
990 | s_crop, &sd_crop); | |
ebf984bb HV |
991 | format.format.width = geo.output.width; |
992 | format.format.height = geo.output.height; | |
993 | ret = v4l2_device_call_until_err(&vou_dev->v4l2_dev, 0, pad, | |
994 | set_fmt, NULL, &format); | |
a81fb9b2 GL |
995 | /* Must be implemented, so, don't check for -ENOIOCTLCMD */ |
996 | if (ret < 0) | |
997 | return ret; | |
998 | ||
999 | /* Sanity checks */ | |
ebf984bb HV |
1000 | if ((unsigned)format.format.width > VOU_MAX_IMAGE_WIDTH || |
1001 | (unsigned)format.format.height > img_height_max || | |
1002 | format.format.code != MEDIA_BUS_FMT_YUYV8_2X8) | |
a81fb9b2 GL |
1003 | return -EIO; |
1004 | ||
ebf984bb HV |
1005 | geo.output.width = format.format.width; |
1006 | geo.output.height = format.format.height; | |
a81fb9b2 GL |
1007 | |
1008 | /* | |
1009 | * No down-scaling. According to the API, current call has precedence: | |
1010 | * http://v4l2spec.bytesex.org/spec/x1904.htm#AEN1954 paragraph two. | |
1011 | */ | |
1012 | vou_adjust_input(&geo, vou_dev->std); | |
1013 | ||
1014 | /* We tried to preserve output rectangle, but it could have changed */ | |
1015 | vou_dev->rect = geo.output; | |
1016 | pix->width = geo.in_width; | |
1017 | pix->height = geo.in_height; | |
1018 | ||
1019 | sh_vou_configure_geometry(vou_dev, vou_dev->pix_idx, | |
1020 | geo.scale_idx_h, geo.scale_idx_v); | |
1021 | ||
1022 | return 0; | |
1023 | } | |
1024 | ||
a81fb9b2 GL |
1025 | static irqreturn_t sh_vou_isr(int irq, void *dev_id) |
1026 | { | |
1027 | struct sh_vou_device *vou_dev = dev_id; | |
1028 | static unsigned long j; | |
57af3ad5 | 1029 | struct sh_vou_buffer *vb; |
a81fb9b2 | 1030 | static int cnt; |
a81fb9b2 GL |
1031 | u32 irq_status = sh_vou_reg_a_read(vou_dev, VOUIR), masked; |
1032 | u32 vou_status = sh_vou_reg_a_read(vou_dev, VOUSTR); | |
1033 | ||
1034 | if (!(irq_status & 0x300)) { | |
1035 | if (printk_timed_ratelimit(&j, 500)) | |
1036 | dev_warn(vou_dev->v4l2_dev.dev, "IRQ status 0x%x!\n", | |
1037 | irq_status); | |
1038 | return IRQ_NONE; | |
1039 | } | |
1040 | ||
1041 | spin_lock(&vou_dev->lock); | |
57af3ad5 | 1042 | if (!vou_dev->active || list_empty(&vou_dev->buf_list)) { |
a81fb9b2 GL |
1043 | if (printk_timed_ratelimit(&j, 500)) |
1044 | dev_warn(vou_dev->v4l2_dev.dev, | |
1045 | "IRQ without active buffer: %x!\n", irq_status); | |
1046 | /* Just ack: buf_release will disable further interrupts */ | |
1047 | sh_vou_reg_a_set(vou_dev, VOUIR, 0, 0x300); | |
1048 | spin_unlock(&vou_dev->lock); | |
1049 | return IRQ_HANDLED; | |
1050 | } | |
1051 | ||
1052 | masked = ~(0x300 & irq_status) & irq_status & 0x30304; | |
1053 | dev_dbg(vou_dev->v4l2_dev.dev, | |
1054 | "IRQ status 0x%x -> 0x%x, VOU status 0x%x, cnt %d\n", | |
1055 | irq_status, masked, vou_status, cnt); | |
1056 | ||
1057 | cnt++; | |
a622cc51 | 1058 | /* side = vou_status & 0x10000; */ |
a81fb9b2 GL |
1059 | |
1060 | /* Clear only set interrupts */ | |
1061 | sh_vou_reg_a_write(vou_dev, VOUIR, masked); | |
1062 | ||
1063 | vb = vou_dev->active; | |
57af3ad5 HV |
1064 | if (list_is_singular(&vb->list)) { |
1065 | /* Keep cycling while no next buffer is available */ | |
1066 | sh_vou_schedule_next(vou_dev, &vb->vb); | |
a81fb9b2 GL |
1067 | spin_unlock(&vou_dev->lock); |
1068 | return IRQ_HANDLED; | |
1069 | } | |
1070 | ||
57af3ad5 HV |
1071 | list_del(&vb->list); |
1072 | ||
d6dd645e | 1073 | vb->vb.vb2_buf.timestamp = ktime_get_ns(); |
2d700715 JS |
1074 | vb->vb.sequence = vou_dev->sequence++; |
1075 | vb->vb.field = V4L2_FIELD_INTERLACED; | |
1076 | vb2_buffer_done(&vb->vb.vb2_buf, VB2_BUF_STATE_DONE); | |
57af3ad5 HV |
1077 | |
1078 | vou_dev->active = list_entry(vou_dev->buf_list.next, | |
1079 | struct sh_vou_buffer, list); | |
a81fb9b2 | 1080 | |
57af3ad5 HV |
1081 | if (list_is_singular(&vou_dev->buf_list)) { |
1082 | /* Keep cycling while no next buffer is available */ | |
1083 | sh_vou_schedule_next(vou_dev, &vou_dev->active->vb); | |
1084 | } else { | |
1085 | struct sh_vou_buffer *new = list_entry(vou_dev->active->list.next, | |
1086 | struct sh_vou_buffer, list); | |
1087 | sh_vou_schedule_next(vou_dev, &new->vb); | |
a81fb9b2 GL |
1088 | } |
1089 | ||
1090 | spin_unlock(&vou_dev->lock); | |
1091 | ||
1092 | return IRQ_HANDLED; | |
1093 | } | |
1094 | ||
1095 | static int sh_vou_hw_init(struct sh_vou_device *vou_dev) | |
1096 | { | |
1097 | struct sh_vou_pdata *pdata = vou_dev->pdata; | |
1098 | u32 voucr = sh_vou_ntsc_mode(pdata->bus_fmt) << 29; | |
1099 | int i = 100; | |
1100 | ||
1101 | /* Disable all IRQs */ | |
1102 | sh_vou_reg_a_write(vou_dev, VOUIR, 0); | |
1103 | ||
1104 | /* Reset VOU interfaces - registers unaffected */ | |
1105 | sh_vou_reg_a_write(vou_dev, VOUSRR, 0x101); | |
1106 | while (--i && (sh_vou_reg_a_read(vou_dev, VOUSRR) & 0x101)) | |
1107 | udelay(1); | |
1108 | ||
1109 | if (!i) | |
1110 | return -ETIMEDOUT; | |
1111 | ||
1112 | dev_dbg(vou_dev->v4l2_dev.dev, "Reset took %dus\n", 100 - i); | |
1113 | ||
1114 | if (pdata->flags & SH_VOU_PCLK_FALLING) | |
1115 | voucr |= 1 << 28; | |
1116 | if (pdata->flags & SH_VOU_HSYNC_LOW) | |
1117 | voucr |= 1 << 27; | |
1118 | if (pdata->flags & SH_VOU_VSYNC_LOW) | |
1119 | voucr |= 1 << 26; | |
1120 | sh_vou_reg_ab_set(vou_dev, VOUCR, voucr, 0xfc000000); | |
1121 | ||
1122 | /* Manual register side switching at first */ | |
1123 | sh_vou_reg_a_write(vou_dev, VOURCR, 4); | |
1124 | /* Default - fixed HSYNC length, can be made configurable is required */ | |
1125 | sh_vou_reg_ab_write(vou_dev, VOUMSR, 0x800000); | |
1126 | ||
57af3ad5 HV |
1127 | sh_vou_set_fmt_vid_out(vou_dev, &vou_dev->pix); |
1128 | ||
a81fb9b2 GL |
1129 | return 0; |
1130 | } | |
1131 | ||
1132 | /* File operations */ | |
1133 | static int sh_vou_open(struct file *file) | |
1134 | { | |
fd51625d | 1135 | struct sh_vou_device *vou_dev = video_drvdata(file); |
57af3ad5 | 1136 | int err; |
a81fb9b2 | 1137 | |
57af3ad5 | 1138 | if (mutex_lock_interruptible(&vou_dev->fop_lock)) |
f135a8a2 | 1139 | return -ERESTARTSYS; |
c5f98085 | 1140 | |
57af3ad5 HV |
1141 | err = v4l2_fh_open(file); |
1142 | if (err) | |
1143 | goto done_open; | |
1144 | if (v4l2_fh_is_singular_file(file) && | |
1145 | vou_dev->status == SH_VOU_INITIALISING) { | |
a81fb9b2 | 1146 | /* First open */ |
fd51625d | 1147 | pm_runtime_get_sync(vou_dev->v4l2_dev.dev); |
57af3ad5 HV |
1148 | err = sh_vou_hw_init(vou_dev); |
1149 | if (err < 0) { | |
fd51625d | 1150 | pm_runtime_put(vou_dev->v4l2_dev.dev); |
57af3ad5 HV |
1151 | v4l2_fh_release(file); |
1152 | } else { | |
a81fb9b2 | 1153 | vou_dev->status = SH_VOU_IDLE; |
a81fb9b2 GL |
1154 | } |
1155 | } | |
57af3ad5 | 1156 | done_open: |
f135a8a2 | 1157 | mutex_unlock(&vou_dev->fop_lock); |
57af3ad5 | 1158 | return err; |
a81fb9b2 GL |
1159 | } |
1160 | ||
1161 | static int sh_vou_release(struct file *file) | |
1162 | { | |
fd51625d | 1163 | struct sh_vou_device *vou_dev = video_drvdata(file); |
57af3ad5 | 1164 | bool is_last; |
a81fb9b2 | 1165 | |
c5f98085 | 1166 | mutex_lock(&vou_dev->fop_lock); |
57af3ad5 HV |
1167 | is_last = v4l2_fh_is_singular_file(file); |
1168 | _vb2_fop_release(file, NULL); | |
1169 | if (is_last) { | |
a81fb9b2 | 1170 | /* Last close */ |
57af3ad5 | 1171 | vou_dev->status = SH_VOU_INITIALISING; |
a81fb9b2 | 1172 | sh_vou_reg_a_set(vou_dev, VOUER, 0, 0x101); |
fd51625d | 1173 | pm_runtime_put(vou_dev->v4l2_dev.dev); |
a81fb9b2 | 1174 | } |
c5f98085 | 1175 | mutex_unlock(&vou_dev->fop_lock); |
a81fb9b2 GL |
1176 | return 0; |
1177 | } | |
1178 | ||
a81fb9b2 GL |
1179 | /* sh_vou display ioctl operations */ |
1180 | static const struct v4l2_ioctl_ops sh_vou_ioctl_ops = { | |
1181 | .vidioc_querycap = sh_vou_querycap, | |
1182 | .vidioc_enum_fmt_vid_out = sh_vou_enum_fmt_vid_out, | |
1183 | .vidioc_g_fmt_vid_out = sh_vou_g_fmt_vid_out, | |
1184 | .vidioc_s_fmt_vid_out = sh_vou_s_fmt_vid_out, | |
1185 | .vidioc_try_fmt_vid_out = sh_vou_try_fmt_vid_out, | |
57af3ad5 HV |
1186 | .vidioc_reqbufs = vb2_ioctl_reqbufs, |
1187 | .vidioc_create_bufs = vb2_ioctl_create_bufs, | |
1188 | .vidioc_querybuf = vb2_ioctl_querybuf, | |
1189 | .vidioc_qbuf = vb2_ioctl_qbuf, | |
1190 | .vidioc_dqbuf = vb2_ioctl_dqbuf, | |
1191 | .vidioc_prepare_buf = vb2_ioctl_prepare_buf, | |
1192 | .vidioc_streamon = vb2_ioctl_streamon, | |
1193 | .vidioc_streamoff = vb2_ioctl_streamoff, | |
1194 | .vidioc_expbuf = vb2_ioctl_expbuf, | |
4de00d0e HV |
1195 | .vidioc_g_output = sh_vou_g_output, |
1196 | .vidioc_s_output = sh_vou_s_output, | |
1197 | .vidioc_enum_output = sh_vou_enum_output, | |
a81fb9b2 GL |
1198 | .vidioc_s_std = sh_vou_s_std, |
1199 | .vidioc_g_std = sh_vou_g_std, | |
61fbacc1 HV |
1200 | .vidioc_g_selection = sh_vou_g_selection, |
1201 | .vidioc_s_selection = sh_vou_s_selection, | |
0b3474f0 | 1202 | .vidioc_log_status = sh_vou_log_status, |
a81fb9b2 GL |
1203 | }; |
1204 | ||
1205 | static const struct v4l2_file_operations sh_vou_fops = { | |
1206 | .owner = THIS_MODULE, | |
1207 | .open = sh_vou_open, | |
1208 | .release = sh_vou_release, | |
69756693 | 1209 | .unlocked_ioctl = video_ioctl2, |
57af3ad5 HV |
1210 | .mmap = vb2_fop_mmap, |
1211 | .poll = vb2_fop_poll, | |
1212 | .write = vb2_fop_write, | |
a81fb9b2 GL |
1213 | }; |
1214 | ||
1215 | static const struct video_device sh_vou_video_template = { | |
1216 | .name = "sh_vou", | |
1217 | .fops = &sh_vou_fops, | |
1218 | .ioctl_ops = &sh_vou_ioctl_ops, | |
1219 | .tvnorms = V4L2_STD_525_60, /* PAL only supported in 8-bit non-bt656 mode */ | |
954f340f | 1220 | .vfl_dir = VFL_DIR_TX, |
a81fb9b2 GL |
1221 | }; |
1222 | ||
4c62e976 | 1223 | static int sh_vou_probe(struct platform_device *pdev) |
a81fb9b2 GL |
1224 | { |
1225 | struct sh_vou_pdata *vou_pdata = pdev->dev.platform_data; | |
1226 | struct v4l2_rect *rect; | |
1227 | struct v4l2_pix_format *pix; | |
1228 | struct i2c_adapter *i2c_adap; | |
1229 | struct video_device *vdev; | |
1230 | struct sh_vou_device *vou_dev; | |
4690271c | 1231 | struct resource *reg_res; |
a81fb9b2 | 1232 | struct v4l2_subdev *subdev; |
57af3ad5 | 1233 | struct vb2_queue *q; |
a81fb9b2 GL |
1234 | int irq, ret; |
1235 | ||
1236 | reg_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
1237 | irq = platform_get_irq(pdev, 0); | |
1238 | ||
1239 | if (!vou_pdata || !reg_res || irq <= 0) { | |
1240 | dev_err(&pdev->dev, "Insufficient VOU platform information.\n"); | |
1241 | return -ENODEV; | |
1242 | } | |
1243 | ||
4690271c | 1244 | vou_dev = devm_kzalloc(&pdev->dev, sizeof(*vou_dev), GFP_KERNEL); |
a81fb9b2 GL |
1245 | if (!vou_dev) |
1246 | return -ENOMEM; | |
1247 | ||
57af3ad5 | 1248 | INIT_LIST_HEAD(&vou_dev->buf_list); |
a81fb9b2 | 1249 | spin_lock_init(&vou_dev->lock); |
69756693 | 1250 | mutex_init(&vou_dev->fop_lock); |
a81fb9b2 | 1251 | vou_dev->pdata = vou_pdata; |
57af3ad5 HV |
1252 | vou_dev->status = SH_VOU_INITIALISING; |
1253 | vou_dev->pix_idx = 1; | |
a81fb9b2 GL |
1254 | |
1255 | rect = &vou_dev->rect; | |
1256 | pix = &vou_dev->pix; | |
1257 | ||
1258 | /* Fill in defaults */ | |
5d408108 | 1259 | vou_dev->std = V4L2_STD_NTSC_M; |
a81fb9b2 GL |
1260 | rect->left = 0; |
1261 | rect->top = 0; | |
1262 | rect->width = VOU_MAX_IMAGE_WIDTH; | |
765fe17c | 1263 | rect->height = 480; |
a81fb9b2 | 1264 | pix->width = VOU_MAX_IMAGE_WIDTH; |
765fe17c | 1265 | pix->height = 480; |
22df2e7a | 1266 | pix->pixelformat = V4L2_PIX_FMT_NV16; |
57af3ad5 | 1267 | pix->field = V4L2_FIELD_INTERLACED; |
5c3edcb2 | 1268 | pix->bytesperline = VOU_MAX_IMAGE_WIDTH; |
765fe17c | 1269 | pix->sizeimage = VOU_MAX_IMAGE_WIDTH * 2 * 480; |
a81fb9b2 GL |
1270 | pix->colorspace = V4L2_COLORSPACE_SMPTE170M; |
1271 | ||
4690271c HV |
1272 | vou_dev->base = devm_ioremap_resource(&pdev->dev, reg_res); |
1273 | if (IS_ERR(vou_dev->base)) | |
1274 | return PTR_ERR(vou_dev->base); | |
a81fb9b2 | 1275 | |
4690271c | 1276 | ret = devm_request_irq(&pdev->dev, irq, sh_vou_isr, 0, "vou", vou_dev); |
a81fb9b2 | 1277 | if (ret < 0) |
4690271c | 1278 | return ret; |
a81fb9b2 GL |
1279 | |
1280 | ret = v4l2_device_register(&pdev->dev, &vou_dev->v4l2_dev); | |
1281 | if (ret < 0) { | |
1282 | dev_err(&pdev->dev, "Error registering v4l2 device\n"); | |
4690271c | 1283 | return ret; |
a81fb9b2 GL |
1284 | } |
1285 | ||
d079f99f | 1286 | vdev = &vou_dev->vdev; |
a81fb9b2 GL |
1287 | *vdev = sh_vou_video_template; |
1288 | if (vou_pdata->bus_fmt == SH_VOU_BUS_8BIT) | |
1289 | vdev->tvnorms |= V4L2_STD_PAL; | |
1290 | vdev->v4l2_dev = &vou_dev->v4l2_dev; | |
d079f99f | 1291 | vdev->release = video_device_release_empty; |
69756693 | 1292 | vdev->lock = &vou_dev->fop_lock; |
a81fb9b2 | 1293 | |
a81fb9b2 GL |
1294 | video_set_drvdata(vdev, vou_dev); |
1295 | ||
57af3ad5 HV |
1296 | /* Initialize the vb2 queue */ |
1297 | q = &vou_dev->queue; | |
1298 | q->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; | |
1299 | q->io_modes = VB2_MMAP | VB2_DMABUF | VB2_WRITE; | |
1300 | q->drv_priv = vou_dev; | |
1301 | q->buf_struct_size = sizeof(struct sh_vou_buffer); | |
1302 | q->ops = &sh_vou_qops; | |
1303 | q->mem_ops = &vb2_dma_contig_memops; | |
1304 | q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; | |
1305 | q->min_buffers_needed = 2; | |
1306 | q->lock = &vou_dev->fop_lock; | |
1307 | ret = vb2_queue_init(q); | |
1308 | if (ret) | |
1309 | goto einitctx; | |
1310 | ||
1311 | vou_dev->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev); | |
1312 | if (IS_ERR(vou_dev->alloc_ctx)) { | |
1313 | dev_err(&pdev->dev, "Can't allocate buffer context"); | |
1314 | ret = PTR_ERR(vou_dev->alloc_ctx); | |
1315 | goto einitctx; | |
1316 | } | |
1317 | vdev->queue = q; | |
1318 | INIT_LIST_HEAD(&vou_dev->buf_list); | |
1319 | ||
a81fb9b2 GL |
1320 | pm_runtime_enable(&pdev->dev); |
1321 | pm_runtime_resume(&pdev->dev); | |
1322 | ||
1323 | i2c_adap = i2c_get_adapter(vou_pdata->i2c_adap); | |
1324 | if (!i2c_adap) { | |
1325 | ret = -ENODEV; | |
1326 | goto ei2cgadap; | |
1327 | } | |
1328 | ||
1329 | ret = sh_vou_hw_init(vou_dev); | |
1330 | if (ret < 0) | |
1331 | goto ereset; | |
1332 | ||
1333 | subdev = v4l2_i2c_new_subdev_board(&vou_dev->v4l2_dev, i2c_adap, | |
9a1f8b34 | 1334 | vou_pdata->board_info, NULL); |
a81fb9b2 GL |
1335 | if (!subdev) { |
1336 | ret = -ENOMEM; | |
1337 | goto ei2cnd; | |
1338 | } | |
1339 | ||
1340 | ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1); | |
1341 | if (ret < 0) | |
1342 | goto evregdev; | |
1343 | ||
1344 | return 0; | |
1345 | ||
1346 | evregdev: | |
1347 | ei2cnd: | |
1348 | ereset: | |
1349 | i2c_put_adapter(i2c_adap); | |
1350 | ei2cgadap: | |
57af3ad5 HV |
1351 | vb2_dma_contig_cleanup_ctx(vou_dev->alloc_ctx); |
1352 | einitctx: | |
a81fb9b2 | 1353 | pm_runtime_disable(&pdev->dev); |
a81fb9b2 | 1354 | v4l2_device_unregister(&vou_dev->v4l2_dev); |
a81fb9b2 GL |
1355 | return ret; |
1356 | } | |
1357 | ||
4c62e976 | 1358 | static int sh_vou_remove(struct platform_device *pdev) |
a81fb9b2 | 1359 | { |
a81fb9b2 GL |
1360 | struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev); |
1361 | struct sh_vou_device *vou_dev = container_of(v4l2_dev, | |
1362 | struct sh_vou_device, v4l2_dev); | |
1363 | struct v4l2_subdev *sd = list_entry(v4l2_dev->subdevs.next, | |
1364 | struct v4l2_subdev, list); | |
1365 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
a81fb9b2 | 1366 | |
a81fb9b2 | 1367 | pm_runtime_disable(&pdev->dev); |
d079f99f | 1368 | video_unregister_device(&vou_dev->vdev); |
a81fb9b2 | 1369 | i2c_put_adapter(client->adapter); |
57af3ad5 | 1370 | vb2_dma_contig_cleanup_ctx(vou_dev->alloc_ctx); |
a81fb9b2 | 1371 | v4l2_device_unregister(&vou_dev->v4l2_dev); |
a81fb9b2 GL |
1372 | return 0; |
1373 | } | |
1374 | ||
1375 | static struct platform_driver __refdata sh_vou = { | |
4c62e976 | 1376 | .remove = sh_vou_remove, |
a81fb9b2 GL |
1377 | .driver = { |
1378 | .name = "sh-vou", | |
a81fb9b2 GL |
1379 | }, |
1380 | }; | |
1381 | ||
b3fd87bc | 1382 | module_platform_driver_probe(sh_vou, sh_vou_probe); |
a81fb9b2 GL |
1383 | |
1384 | MODULE_DESCRIPTION("SuperH VOU driver"); | |
1385 | MODULE_AUTHOR("Guennadi Liakhovetski <g.liakhovetski@gmx.de>"); | |
1386 | MODULE_LICENSE("GPL v2"); | |
64dc3c1a | 1387 | MODULE_VERSION("0.1.0"); |
a81fb9b2 | 1388 | MODULE_ALIAS("platform:sh-vou"); |