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 GL |
24 | |
25 | #include <media/sh_vou.h> | |
26 | #include <media/v4l2-common.h> | |
27 | #include <media/v4l2-device.h> | |
28 | #include <media/v4l2-ioctl.h> | |
29 | #include <media/v4l2-mediabus.h> | |
30 | #include <media/videobuf-dma-contig.h> | |
31 | ||
32 | /* Mirror addresses are not available for all registers */ | |
33 | #define VOUER 0 | |
34 | #define VOUCR 4 | |
35 | #define VOUSTR 8 | |
36 | #define VOUVCR 0xc | |
37 | #define VOUISR 0x10 | |
38 | #define VOUBCR 0x14 | |
39 | #define VOUDPR 0x18 | |
40 | #define VOUDSR 0x1c | |
41 | #define VOUVPR 0x20 | |
42 | #define VOUIR 0x24 | |
43 | #define VOUSRR 0x28 | |
44 | #define VOUMSR 0x2c | |
45 | #define VOUHIR 0x30 | |
46 | #define VOUDFR 0x34 | |
47 | #define VOUAD1R 0x38 | |
48 | #define VOUAD2R 0x3c | |
49 | #define VOUAIR 0x40 | |
50 | #define VOUSWR 0x44 | |
51 | #define VOURCR 0x48 | |
52 | #define VOURPR 0x50 | |
53 | ||
54 | enum sh_vou_status { | |
55 | SH_VOU_IDLE, | |
56 | SH_VOU_INITIALISING, | |
57 | SH_VOU_RUNNING, | |
58 | }; | |
59 | ||
60 | #define VOU_MAX_IMAGE_WIDTH 720 | |
765fe17c | 61 | #define VOU_MAX_IMAGE_HEIGHT 576 |
a81fb9b2 GL |
62 | |
63 | struct sh_vou_device { | |
64 | struct v4l2_device v4l2_dev; | |
d079f99f | 65 | struct video_device vdev; |
a81fb9b2 GL |
66 | struct sh_vou_pdata *pdata; |
67 | spinlock_t lock; | |
68 | void __iomem *base; | |
69 | /* State information */ | |
70 | struct v4l2_pix_format pix; | |
71 | struct v4l2_rect rect; | |
72 | struct list_head queue; | |
73 | v4l2_std_id std; | |
74 | int pix_idx; | |
75 | struct videobuf_buffer *active; | |
76 | enum sh_vou_status status; | |
69756693 | 77 | struct mutex fop_lock; |
a81fb9b2 GL |
78 | }; |
79 | ||
80 | struct sh_vou_file { | |
c5f98085 | 81 | struct v4l2_fh fh; |
a81fb9b2 GL |
82 | struct videobuf_queue vbq; |
83 | }; | |
84 | ||
85 | /* Register access routines for sides A, B and mirror addresses */ | |
86 | static void sh_vou_reg_a_write(struct sh_vou_device *vou_dev, unsigned int reg, | |
87 | u32 value) | |
88 | { | |
89 | __raw_writel(value, vou_dev->base + reg); | |
90 | } | |
91 | ||
92 | static void sh_vou_reg_ab_write(struct sh_vou_device *vou_dev, unsigned int reg, | |
93 | u32 value) | |
94 | { | |
95 | __raw_writel(value, vou_dev->base + reg); | |
96 | __raw_writel(value, vou_dev->base + reg + 0x1000); | |
97 | } | |
98 | ||
99 | static void sh_vou_reg_m_write(struct sh_vou_device *vou_dev, unsigned int reg, | |
100 | u32 value) | |
101 | { | |
102 | __raw_writel(value, vou_dev->base + reg + 0x2000); | |
103 | } | |
104 | ||
105 | static u32 sh_vou_reg_a_read(struct sh_vou_device *vou_dev, unsigned int reg) | |
106 | { | |
107 | return __raw_readl(vou_dev->base + reg); | |
108 | } | |
109 | ||
110 | static void sh_vou_reg_a_set(struct sh_vou_device *vou_dev, unsigned int reg, | |
111 | u32 value, u32 mask) | |
112 | { | |
113 | u32 old = __raw_readl(vou_dev->base + reg); | |
114 | ||
115 | value = (value & mask) | (old & ~mask); | |
116 | __raw_writel(value, vou_dev->base + reg); | |
117 | } | |
118 | ||
119 | static void sh_vou_reg_b_set(struct sh_vou_device *vou_dev, unsigned int reg, | |
120 | u32 value, u32 mask) | |
121 | { | |
122 | sh_vou_reg_a_set(vou_dev, reg + 0x1000, value, mask); | |
123 | } | |
124 | ||
125 | static void sh_vou_reg_ab_set(struct sh_vou_device *vou_dev, unsigned int reg, | |
126 | u32 value, u32 mask) | |
127 | { | |
128 | sh_vou_reg_a_set(vou_dev, reg, value, mask); | |
129 | sh_vou_reg_b_set(vou_dev, reg, value, mask); | |
130 | } | |
131 | ||
132 | struct sh_vou_fmt { | |
133 | u32 pfmt; | |
134 | char *desc; | |
135 | unsigned char bpp; | |
5c3edcb2 | 136 | unsigned char bpl; |
a81fb9b2 GL |
137 | unsigned char rgb; |
138 | unsigned char yf; | |
139 | unsigned char pkf; | |
140 | }; | |
141 | ||
142 | /* Further pixel formats can be added */ | |
143 | static struct sh_vou_fmt vou_fmt[] = { | |
144 | { | |
145 | .pfmt = V4L2_PIX_FMT_NV12, | |
146 | .bpp = 12, | |
5c3edcb2 | 147 | .bpl = 1, |
a81fb9b2 GL |
148 | .desc = "YVU420 planar", |
149 | .yf = 0, | |
150 | .rgb = 0, | |
151 | }, | |
152 | { | |
153 | .pfmt = V4L2_PIX_FMT_NV16, | |
154 | .bpp = 16, | |
5c3edcb2 | 155 | .bpl = 1, |
a81fb9b2 GL |
156 | .desc = "YVYU planar", |
157 | .yf = 1, | |
158 | .rgb = 0, | |
159 | }, | |
160 | { | |
161 | .pfmt = V4L2_PIX_FMT_RGB24, | |
162 | .bpp = 24, | |
5c3edcb2 | 163 | .bpl = 3, |
a81fb9b2 GL |
164 | .desc = "RGB24", |
165 | .pkf = 2, | |
166 | .rgb = 1, | |
167 | }, | |
168 | { | |
169 | .pfmt = V4L2_PIX_FMT_RGB565, | |
170 | .bpp = 16, | |
5c3edcb2 | 171 | .bpl = 2, |
a81fb9b2 GL |
172 | .desc = "RGB565", |
173 | .pkf = 3, | |
174 | .rgb = 1, | |
175 | }, | |
176 | { | |
177 | .pfmt = V4L2_PIX_FMT_RGB565X, | |
178 | .bpp = 16, | |
5c3edcb2 | 179 | .bpl = 2, |
a81fb9b2 GL |
180 | .desc = "RGB565 byteswapped", |
181 | .pkf = 3, | |
182 | .rgb = 1, | |
183 | }, | |
184 | }; | |
185 | ||
186 | static void sh_vou_schedule_next(struct sh_vou_device *vou_dev, | |
187 | struct videobuf_buffer *vb) | |
188 | { | |
189 | dma_addr_t addr1, addr2; | |
190 | ||
191 | addr1 = videobuf_to_dma_contig(vb); | |
192 | switch (vou_dev->pix.pixelformat) { | |
193 | case V4L2_PIX_FMT_NV12: | |
194 | case V4L2_PIX_FMT_NV16: | |
195 | addr2 = addr1 + vou_dev->pix.width * vou_dev->pix.height; | |
196 | break; | |
197 | default: | |
198 | addr2 = 0; | |
199 | } | |
200 | ||
201 | sh_vou_reg_m_write(vou_dev, VOUAD1R, addr1); | |
202 | sh_vou_reg_m_write(vou_dev, VOUAD2R, addr2); | |
203 | } | |
204 | ||
205 | static void sh_vou_stream_start(struct sh_vou_device *vou_dev, | |
206 | struct videobuf_buffer *vb) | |
207 | { | |
208 | unsigned int row_coeff; | |
209 | #ifdef __LITTLE_ENDIAN | |
210 | u32 dataswap = 7; | |
211 | #else | |
212 | u32 dataswap = 0; | |
213 | #endif | |
214 | ||
215 | switch (vou_dev->pix.pixelformat) { | |
bc1ebd70 | 216 | default: |
a81fb9b2 GL |
217 | case V4L2_PIX_FMT_NV12: |
218 | case V4L2_PIX_FMT_NV16: | |
219 | row_coeff = 1; | |
220 | break; | |
221 | case V4L2_PIX_FMT_RGB565: | |
222 | dataswap ^= 1; | |
223 | case V4L2_PIX_FMT_RGB565X: | |
224 | row_coeff = 2; | |
225 | break; | |
226 | case V4L2_PIX_FMT_RGB24: | |
227 | row_coeff = 3; | |
228 | break; | |
229 | } | |
230 | ||
231 | sh_vou_reg_a_write(vou_dev, VOUSWR, dataswap); | |
232 | sh_vou_reg_ab_write(vou_dev, VOUAIR, vou_dev->pix.width * row_coeff); | |
233 | sh_vou_schedule_next(vou_dev, vb); | |
234 | } | |
235 | ||
236 | static void free_buffer(struct videobuf_queue *vq, struct videobuf_buffer *vb) | |
237 | { | |
238 | BUG_ON(in_interrupt()); | |
239 | ||
240 | /* Wait until this buffer is no longer in STATE_QUEUED or STATE_ACTIVE */ | |
0e0809a5 | 241 | videobuf_waiton(vq, vb, 0, 0); |
a81fb9b2 GL |
242 | videobuf_dma_contig_free(vq, vb); |
243 | vb->state = VIDEOBUF_NEEDS_INIT; | |
244 | } | |
245 | ||
69756693 | 246 | /* Locking: caller holds fop_lock mutex */ |
a81fb9b2 GL |
247 | static int sh_vou_buf_setup(struct videobuf_queue *vq, unsigned int *count, |
248 | unsigned int *size) | |
249 | { | |
250 | struct video_device *vdev = vq->priv_data; | |
251 | struct sh_vou_device *vou_dev = video_get_drvdata(vdev); | |
252 | ||
253 | *size = vou_fmt[vou_dev->pix_idx].bpp * vou_dev->pix.width * | |
254 | vou_dev->pix.height / 8; | |
255 | ||
256 | if (*count < 2) | |
257 | *count = 2; | |
258 | ||
259 | /* Taking into account maximum frame size, *count will stay >= 2 */ | |
260 | if (PAGE_ALIGN(*size) * *count > 4 * 1024 * 1024) | |
261 | *count = 4 * 1024 * 1024 / PAGE_ALIGN(*size); | |
262 | ||
d899eddd LP |
263 | dev_dbg(vou_dev->v4l2_dev.dev, "%s(): count=%d, size=%d\n", __func__, |
264 | *count, *size); | |
a81fb9b2 GL |
265 | |
266 | return 0; | |
267 | } | |
268 | ||
69756693 | 269 | /* Locking: caller holds fop_lock mutex */ |
a81fb9b2 GL |
270 | static int sh_vou_buf_prepare(struct videobuf_queue *vq, |
271 | struct videobuf_buffer *vb, | |
272 | enum v4l2_field field) | |
273 | { | |
274 | struct video_device *vdev = vq->priv_data; | |
275 | struct sh_vou_device *vou_dev = video_get_drvdata(vdev); | |
276 | struct v4l2_pix_format *pix = &vou_dev->pix; | |
277 | int bytes_per_line = vou_fmt[vou_dev->pix_idx].bpp * pix->width / 8; | |
278 | int ret; | |
279 | ||
d899eddd | 280 | dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); |
a81fb9b2 GL |
281 | |
282 | if (vb->width != pix->width || | |
283 | vb->height != pix->height || | |
284 | vb->field != pix->field) { | |
285 | vb->width = pix->width; | |
286 | vb->height = pix->height; | |
287 | vb->field = field; | |
288 | if (vb->state != VIDEOBUF_NEEDS_INIT) | |
289 | free_buffer(vq, vb); | |
290 | } | |
291 | ||
292 | vb->size = vb->height * bytes_per_line; | |
293 | if (vb->baddr && vb->bsize < vb->size) { | |
294 | /* User buffer too small */ | |
3f8965e0 | 295 | dev_warn(vq->dev, "User buffer too small: [%zu] @ %lx\n", |
a81fb9b2 GL |
296 | vb->bsize, vb->baddr); |
297 | return -EINVAL; | |
298 | } | |
299 | ||
300 | if (vb->state == VIDEOBUF_NEEDS_INIT) { | |
301 | ret = videobuf_iolock(vq, vb, NULL); | |
302 | if (ret < 0) { | |
303 | dev_warn(vq->dev, "IOLOCK buf-type %d: %d\n", | |
304 | vb->memory, ret); | |
305 | return ret; | |
306 | } | |
307 | vb->state = VIDEOBUF_PREPARED; | |
308 | } | |
309 | ||
d899eddd | 310 | dev_dbg(vou_dev->v4l2_dev.dev, |
3f8965e0 | 311 | "%s(): fmt #%d, %u bytes per line, phys %pad, type %d, state %d\n", |
a81fb9b2 | 312 | __func__, vou_dev->pix_idx, bytes_per_line, |
3f8965e0 LP |
313 | ({ dma_addr_t addr = videobuf_to_dma_contig(vb); &addr; }), |
314 | vb->memory, vb->state); | |
a81fb9b2 GL |
315 | |
316 | return 0; | |
317 | } | |
318 | ||
69756693 | 319 | /* Locking: caller holds fop_lock mutex and vq->irqlock spinlock */ |
a81fb9b2 GL |
320 | static void sh_vou_buf_queue(struct videobuf_queue *vq, |
321 | struct videobuf_buffer *vb) | |
322 | { | |
323 | struct video_device *vdev = vq->priv_data; | |
324 | struct sh_vou_device *vou_dev = video_get_drvdata(vdev); | |
325 | ||
d899eddd | 326 | dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); |
a81fb9b2 GL |
327 | |
328 | vb->state = VIDEOBUF_QUEUED; | |
329 | list_add_tail(&vb->queue, &vou_dev->queue); | |
330 | ||
331 | if (vou_dev->status == SH_VOU_RUNNING) { | |
332 | return; | |
333 | } else if (!vou_dev->active) { | |
334 | vou_dev->active = vb; | |
335 | /* Start from side A: we use mirror addresses, so, set B */ | |
336 | sh_vou_reg_a_write(vou_dev, VOURPR, 1); | |
d899eddd LP |
337 | dev_dbg(vou_dev->v4l2_dev.dev, "%s: first buffer status 0x%x\n", |
338 | __func__, sh_vou_reg_a_read(vou_dev, VOUSTR)); | |
a81fb9b2 GL |
339 | sh_vou_schedule_next(vou_dev, vb); |
340 | /* Only activate VOU after the second buffer */ | |
341 | } else if (vou_dev->active->queue.next == &vb->queue) { | |
342 | /* Second buffer - initialise register side B */ | |
343 | sh_vou_reg_a_write(vou_dev, VOURPR, 0); | |
344 | sh_vou_stream_start(vou_dev, vb); | |
345 | ||
346 | /* Register side switching with frame VSYNC */ | |
347 | sh_vou_reg_a_write(vou_dev, VOURCR, 5); | |
d899eddd LP |
348 | dev_dbg(vou_dev->v4l2_dev.dev, "%s: second buffer status 0x%x\n", |
349 | __func__, sh_vou_reg_a_read(vou_dev, VOUSTR)); | |
a81fb9b2 GL |
350 | |
351 | /* Enable End-of-Frame (VSYNC) interrupts */ | |
352 | sh_vou_reg_a_write(vou_dev, VOUIR, 0x10004); | |
353 | /* Two buffers on the queue - activate the hardware */ | |
354 | ||
355 | vou_dev->status = SH_VOU_RUNNING; | |
356 | sh_vou_reg_a_write(vou_dev, VOUER, 0x107); | |
357 | } | |
358 | } | |
359 | ||
360 | static void sh_vou_buf_release(struct videobuf_queue *vq, | |
361 | struct videobuf_buffer *vb) | |
362 | { | |
363 | struct video_device *vdev = vq->priv_data; | |
364 | struct sh_vou_device *vou_dev = video_get_drvdata(vdev); | |
365 | unsigned long flags; | |
366 | ||
d899eddd | 367 | dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); |
a81fb9b2 GL |
368 | |
369 | spin_lock_irqsave(&vou_dev->lock, flags); | |
370 | ||
371 | if (vou_dev->active == vb) { | |
372 | /* disable output */ | |
373 | sh_vou_reg_a_set(vou_dev, VOUER, 0, 1); | |
374 | /* ...but the current frame will complete */ | |
375 | sh_vou_reg_a_set(vou_dev, VOUIR, 0, 0x30000); | |
376 | vou_dev->active = NULL; | |
377 | } | |
378 | ||
379 | if ((vb->state == VIDEOBUF_ACTIVE || vb->state == VIDEOBUF_QUEUED)) { | |
380 | vb->state = VIDEOBUF_ERROR; | |
381 | list_del(&vb->queue); | |
382 | } | |
383 | ||
384 | spin_unlock_irqrestore(&vou_dev->lock, flags); | |
385 | ||
386 | free_buffer(vq, vb); | |
387 | } | |
388 | ||
389 | static struct videobuf_queue_ops sh_vou_video_qops = { | |
390 | .buf_setup = sh_vou_buf_setup, | |
391 | .buf_prepare = sh_vou_buf_prepare, | |
392 | .buf_queue = sh_vou_buf_queue, | |
393 | .buf_release = sh_vou_buf_release, | |
394 | }; | |
395 | ||
396 | /* Video IOCTLs */ | |
397 | static int sh_vou_querycap(struct file *file, void *priv, | |
398 | struct v4l2_capability *cap) | |
399 | { | |
d899eddd | 400 | struct sh_vou_device *vou_dev = video_drvdata(file); |
a81fb9b2 | 401 | |
d899eddd | 402 | dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); |
a81fb9b2 GL |
403 | |
404 | strlcpy(cap->card, "SuperH VOU", sizeof(cap->card)); | |
d8046ee0 HV |
405 | strlcpy(cap->driver, "sh-vou", sizeof(cap->driver)); |
406 | strlcpy(cap->bus_info, "platform:sh-vou", sizeof(cap->bus_info)); | |
a020c747 HV |
407 | cap->device_caps = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING; |
408 | cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; | |
a81fb9b2 GL |
409 | return 0; |
410 | } | |
411 | ||
412 | /* Enumerate formats, that the device can accept from the user */ | |
413 | static int sh_vou_enum_fmt_vid_out(struct file *file, void *priv, | |
414 | struct v4l2_fmtdesc *fmt) | |
415 | { | |
d899eddd | 416 | struct sh_vou_device *vou_dev = video_drvdata(file); |
a81fb9b2 GL |
417 | |
418 | if (fmt->index >= ARRAY_SIZE(vou_fmt)) | |
419 | return -EINVAL; | |
420 | ||
d899eddd | 421 | dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); |
a81fb9b2 GL |
422 | |
423 | fmt->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; | |
424 | strlcpy(fmt->description, vou_fmt[fmt->index].desc, | |
425 | sizeof(fmt->description)); | |
426 | fmt->pixelformat = vou_fmt[fmt->index].pfmt; | |
427 | ||
428 | return 0; | |
429 | } | |
430 | ||
431 | static int sh_vou_g_fmt_vid_out(struct file *file, void *priv, | |
432 | struct v4l2_format *fmt) | |
433 | { | |
fd51625d | 434 | struct sh_vou_device *vou_dev = video_drvdata(file); |
a81fb9b2 GL |
435 | |
436 | dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); | |
437 | ||
438 | fmt->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; | |
439 | fmt->fmt.pix = vou_dev->pix; | |
440 | ||
441 | return 0; | |
442 | } | |
443 | ||
444 | static const unsigned char vou_scale_h_num[] = {1, 9, 2, 9, 4}; | |
445 | static const unsigned char vou_scale_h_den[] = {1, 8, 1, 4, 1}; | |
446 | static const unsigned char vou_scale_h_fld[] = {0, 2, 1, 3}; | |
447 | static const unsigned char vou_scale_v_num[] = {1, 2, 4}; | |
448 | static const unsigned char vou_scale_v_den[] = {1, 1, 1}; | |
449 | static const unsigned char vou_scale_v_fld[] = {0, 1}; | |
450 | ||
451 | static void sh_vou_configure_geometry(struct sh_vou_device *vou_dev, | |
452 | int pix_idx, int w_idx, int h_idx) | |
453 | { | |
454 | struct sh_vou_fmt *fmt = vou_fmt + pix_idx; | |
a622cc51 | 455 | unsigned int black_left, black_top, width_max, |
a81fb9b2 GL |
456 | frame_in_height, frame_out_height, frame_out_top; |
457 | struct v4l2_rect *rect = &vou_dev->rect; | |
458 | struct v4l2_pix_format *pix = &vou_dev->pix; | |
459 | u32 vouvcr = 0, dsr_h, dsr_v; | |
460 | ||
461 | if (vou_dev->std & V4L2_STD_525_60) { | |
462 | width_max = 858; | |
a622cc51 | 463 | /* height_max = 262; */ |
a81fb9b2 GL |
464 | } else { |
465 | width_max = 864; | |
a622cc51 | 466 | /* height_max = 312; */ |
a81fb9b2 GL |
467 | } |
468 | ||
469 | frame_in_height = pix->height / 2; | |
470 | frame_out_height = rect->height / 2; | |
471 | frame_out_top = rect->top / 2; | |
472 | ||
473 | /* | |
474 | * Cropping scheme: max useful image is 720x480, and the total video | |
475 | * area is 858x525 (NTSC) or 864x625 (PAL). AK8813 / 8814 starts | |
476 | * sampling data beginning with fixed 276th (NTSC) / 288th (PAL) clock, | |
477 | * of which the first 33 / 25 clocks HSYNC must be held active. This | |
478 | * has to be configured in CR[HW]. 1 pixel equals 2 clock periods. | |
479 | * This gives CR[HW] = 16 / 12, VPR[HVP] = 138 / 144, which gives | |
480 | * exactly 858 - 138 = 864 - 144 = 720! We call the out-of-display area, | |
481 | * beyond DSR, specified on the left and top by the VPR register "black | |
482 | * pixels" and out-of-image area (DPR) "background pixels." We fix VPR | |
483 | * at 138 / 144 : 20, because that's the HSYNC timing, that our first | |
484 | * client requires, and that's exactly what leaves us 720 pixels for the | |
485 | * image; we leave VPR[VVP] at default 20 for now, because the client | |
486 | * doesn't seem to have any special requirements for it. Otherwise we | |
487 | * could also set it to max - 240 = 22 / 72. Thus VPR depends only on | |
488 | * the selected standard, and DPR and DSR are selected according to | |
489 | * cropping. Q: how does the client detect the first valid line? Does | |
490 | * HSYNC stay inactive during invalid (black) lines? | |
491 | */ | |
492 | black_left = width_max - VOU_MAX_IMAGE_WIDTH; | |
493 | black_top = 20; | |
494 | ||
495 | dsr_h = rect->width + rect->left; | |
496 | dsr_v = frame_out_height + frame_out_top; | |
497 | ||
498 | dev_dbg(vou_dev->v4l2_dev.dev, | |
499 | "image %ux%u, black %u:%u, offset %u:%u, display %ux%u\n", | |
500 | pix->width, frame_in_height, black_left, black_top, | |
501 | rect->left, frame_out_top, dsr_h, dsr_v); | |
502 | ||
503 | /* VOUISR height - half of a frame height in frame mode */ | |
504 | sh_vou_reg_ab_write(vou_dev, VOUISR, (pix->width << 16) | frame_in_height); | |
505 | sh_vou_reg_ab_write(vou_dev, VOUVPR, (black_left << 16) | black_top); | |
506 | sh_vou_reg_ab_write(vou_dev, VOUDPR, (rect->left << 16) | frame_out_top); | |
507 | sh_vou_reg_ab_write(vou_dev, VOUDSR, (dsr_h << 16) | dsr_v); | |
508 | ||
509 | /* | |
510 | * if necessary, we could set VOUHIR to | |
511 | * max(black_left + dsr_h, width_max) here | |
512 | */ | |
513 | ||
514 | if (w_idx) | |
515 | vouvcr |= (1 << 15) | (vou_scale_h_fld[w_idx - 1] << 4); | |
516 | if (h_idx) | |
517 | vouvcr |= (1 << 14) | vou_scale_v_fld[h_idx - 1]; | |
518 | ||
519 | dev_dbg(vou_dev->v4l2_dev.dev, "%s: scaling 0x%x\n", fmt->desc, vouvcr); | |
520 | ||
521 | /* To produce a colour bar for testing set bit 23 of VOUVCR */ | |
522 | sh_vou_reg_ab_write(vou_dev, VOUVCR, vouvcr); | |
523 | sh_vou_reg_ab_write(vou_dev, VOUDFR, | |
524 | fmt->pkf | (fmt->yf << 8) | (fmt->rgb << 16)); | |
525 | } | |
526 | ||
527 | struct sh_vou_geometry { | |
528 | struct v4l2_rect output; | |
529 | unsigned int in_width; | |
530 | unsigned int in_height; | |
531 | int scale_idx_h; | |
532 | int scale_idx_v; | |
533 | }; | |
534 | ||
535 | /* | |
536 | * Find input geometry, that we can use to produce output, closest to the | |
537 | * requested rectangle, using VOU scaling | |
538 | */ | |
539 | static void vou_adjust_input(struct sh_vou_geometry *geo, v4l2_std_id std) | |
540 | { | |
541 | /* The compiler cannot know, that best and idx will indeed be set */ | |
765fe17c | 542 | unsigned int best_err = UINT_MAX, best = 0, img_height_max; |
a81fb9b2 GL |
543 | int i, idx = 0; |
544 | ||
765fe17c GL |
545 | if (std & V4L2_STD_525_60) |
546 | img_height_max = 480; | |
547 | else | |
548 | img_height_max = 576; | |
a81fb9b2 GL |
549 | |
550 | /* Image width must be a multiple of 4 */ | |
551 | v4l_bound_align_image(&geo->in_width, 0, VOU_MAX_IMAGE_WIDTH, 2, | |
765fe17c | 552 | &geo->in_height, 0, img_height_max, 1, 0); |
a81fb9b2 GL |
553 | |
554 | /* Select scales to come as close as possible to the output image */ | |
555 | for (i = ARRAY_SIZE(vou_scale_h_num) - 1; i >= 0; i--) { | |
556 | unsigned int err; | |
557 | unsigned int found = geo->output.width * vou_scale_h_den[i] / | |
558 | vou_scale_h_num[i]; | |
559 | ||
560 | if (found > VOU_MAX_IMAGE_WIDTH) | |
561 | /* scales increase */ | |
562 | break; | |
563 | ||
564 | err = abs(found - geo->in_width); | |
565 | if (err < best_err) { | |
566 | best_err = err; | |
567 | idx = i; | |
568 | best = found; | |
569 | } | |
570 | if (!err) | |
571 | break; | |
572 | } | |
573 | ||
574 | geo->in_width = best; | |
575 | geo->scale_idx_h = idx; | |
576 | ||
577 | best_err = UINT_MAX; | |
578 | ||
579 | /* This loop can be replaced with one division */ | |
580 | for (i = ARRAY_SIZE(vou_scale_v_num) - 1; i >= 0; i--) { | |
581 | unsigned int err; | |
582 | unsigned int found = geo->output.height * vou_scale_v_den[i] / | |
583 | vou_scale_v_num[i]; | |
584 | ||
765fe17c | 585 | if (found > img_height_max) |
a81fb9b2 GL |
586 | /* scales increase */ |
587 | break; | |
588 | ||
589 | err = abs(found - geo->in_height); | |
590 | if (err < best_err) { | |
591 | best_err = err; | |
592 | idx = i; | |
593 | best = found; | |
594 | } | |
595 | if (!err) | |
596 | break; | |
597 | } | |
598 | ||
599 | geo->in_height = best; | |
600 | geo->scale_idx_v = idx; | |
601 | } | |
602 | ||
603 | /* | |
604 | * Find output geometry, that we can produce, using VOU scaling, closest to | |
605 | * the requested rectangle | |
606 | */ | |
607 | static void vou_adjust_output(struct sh_vou_geometry *geo, v4l2_std_id std) | |
608 | { | |
bc1ebd70 GL |
609 | unsigned int best_err = UINT_MAX, best = geo->in_width, |
610 | width_max, height_max, img_height_max; | |
5ac417ef | 611 | int i, idx_h = 0, idx_v = 0; |
a81fb9b2 GL |
612 | |
613 | if (std & V4L2_STD_525_60) { | |
614 | width_max = 858; | |
615 | height_max = 262 * 2; | |
765fe17c | 616 | img_height_max = 480; |
a81fb9b2 GL |
617 | } else { |
618 | width_max = 864; | |
619 | height_max = 312 * 2; | |
765fe17c | 620 | img_height_max = 576; |
a81fb9b2 GL |
621 | } |
622 | ||
623 | /* Select scales to come as close as possible to the output image */ | |
624 | for (i = 0; i < ARRAY_SIZE(vou_scale_h_num); i++) { | |
625 | unsigned int err; | |
626 | unsigned int found = geo->in_width * vou_scale_h_num[i] / | |
627 | vou_scale_h_den[i]; | |
628 | ||
629 | if (found > VOU_MAX_IMAGE_WIDTH) | |
630 | /* scales increase */ | |
631 | break; | |
632 | ||
633 | err = abs(found - geo->output.width); | |
634 | if (err < best_err) { | |
635 | best_err = err; | |
5ac417ef | 636 | idx_h = i; |
a81fb9b2 GL |
637 | best = found; |
638 | } | |
639 | if (!err) | |
640 | break; | |
641 | } | |
642 | ||
643 | geo->output.width = best; | |
5ac417ef | 644 | geo->scale_idx_h = idx_h; |
a81fb9b2 GL |
645 | if (geo->output.left + best > width_max) |
646 | geo->output.left = width_max - best; | |
647 | ||
648 | pr_debug("%s(): W %u * %u/%u = %u\n", __func__, geo->in_width, | |
5ac417ef | 649 | vou_scale_h_num[idx_h], vou_scale_h_den[idx_h], best); |
a81fb9b2 GL |
650 | |
651 | best_err = UINT_MAX; | |
652 | ||
653 | /* This loop can be replaced with one division */ | |
654 | for (i = 0; i < ARRAY_SIZE(vou_scale_v_num); i++) { | |
655 | unsigned int err; | |
656 | unsigned int found = geo->in_height * vou_scale_v_num[i] / | |
657 | vou_scale_v_den[i]; | |
658 | ||
765fe17c | 659 | if (found > img_height_max) |
a81fb9b2 GL |
660 | /* scales increase */ |
661 | break; | |
662 | ||
663 | err = abs(found - geo->output.height); | |
664 | if (err < best_err) { | |
665 | best_err = err; | |
5ac417ef | 666 | idx_v = i; |
a81fb9b2 GL |
667 | best = found; |
668 | } | |
669 | if (!err) | |
670 | break; | |
671 | } | |
672 | ||
673 | geo->output.height = best; | |
5ac417ef | 674 | geo->scale_idx_v = idx_v; |
a81fb9b2 GL |
675 | if (geo->output.top + best > height_max) |
676 | geo->output.top = height_max - best; | |
677 | ||
678 | pr_debug("%s(): H %u * %u/%u = %u\n", __func__, geo->in_height, | |
5ac417ef | 679 | vou_scale_v_num[idx_v], vou_scale_v_den[idx_v], best); |
a81fb9b2 GL |
680 | } |
681 | ||
66853ec4 HV |
682 | static int sh_vou_try_fmt_vid_out(struct file *file, void *priv, |
683 | struct v4l2_format *fmt) | |
a81fb9b2 | 684 | { |
fd51625d | 685 | struct sh_vou_device *vou_dev = video_drvdata(file); |
a81fb9b2 | 686 | struct v4l2_pix_format *pix = &fmt->fmt.pix; |
765fe17c | 687 | unsigned int img_height_max; |
a81fb9b2 | 688 | int pix_idx; |
a81fb9b2 | 689 | |
66853ec4 | 690 | dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); |
a81fb9b2 | 691 | |
66853ec4 HV |
692 | pix->field = V4L2_FIELD_INTERLACED; |
693 | pix->colorspace = V4L2_COLORSPACE_SMPTE170M; | |
694 | pix->ycbcr_enc = pix->quantization = 0; | |
a81fb9b2 GL |
695 | |
696 | for (pix_idx = 0; pix_idx < ARRAY_SIZE(vou_fmt); pix_idx++) | |
697 | if (vou_fmt[pix_idx].pfmt == pix->pixelformat) | |
698 | break; | |
699 | ||
700 | if (pix_idx == ARRAY_SIZE(vou_fmt)) | |
701 | return -EINVAL; | |
702 | ||
765fe17c GL |
703 | if (vou_dev->std & V4L2_STD_525_60) |
704 | img_height_max = 480; | |
705 | else | |
706 | img_height_max = 576; | |
707 | ||
a81fb9b2 | 708 | v4l_bound_align_image(&pix->width, 0, VOU_MAX_IMAGE_WIDTH, 2, |
765fe17c | 709 | &pix->height, 0, img_height_max, 1, 0); |
5c3edcb2 HV |
710 | pix->bytesperline = pix->width * vou_fmt[pix_idx].bpl; |
711 | pix->sizeimage = pix->height * ((pix->width * vou_fmt[pix_idx].bpp) >> 3); | |
66853ec4 HV |
712 | |
713 | return 0; | |
714 | } | |
715 | ||
716 | static int sh_vou_s_fmt_vid_out(struct file *file, void *priv, | |
717 | struct v4l2_format *fmt) | |
718 | { | |
719 | struct sh_vou_device *vou_dev = video_drvdata(file); | |
720 | struct v4l2_pix_format *pix = &fmt->fmt.pix; | |
721 | unsigned int img_height_max; | |
722 | struct sh_vou_geometry geo; | |
723 | struct v4l2_subdev_format format = { | |
724 | .which = V4L2_SUBDEV_FORMAT_ACTIVE, | |
725 | /* Revisit: is this the correct code? */ | |
726 | .format.code = MEDIA_BUS_FMT_YUYV8_2X8, | |
727 | .format.field = V4L2_FIELD_INTERLACED, | |
728 | .format.colorspace = V4L2_COLORSPACE_SMPTE170M, | |
729 | }; | |
730 | struct v4l2_mbus_framefmt *mbfmt = &format.format; | |
731 | int ret = sh_vou_try_fmt_vid_out(file, priv, fmt); | |
732 | int pix_idx; | |
733 | ||
734 | if (ret) | |
735 | return ret; | |
736 | ||
737 | for (pix_idx = 0; pix_idx < ARRAY_SIZE(vou_fmt); pix_idx++) | |
738 | if (vou_fmt[pix_idx].pfmt == pix->pixelformat) | |
739 | break; | |
a81fb9b2 GL |
740 | |
741 | geo.in_width = pix->width; | |
742 | geo.in_height = pix->height; | |
743 | geo.output = vou_dev->rect; | |
744 | ||
745 | vou_adjust_output(&geo, vou_dev->std); | |
746 | ||
ebf984bb HV |
747 | mbfmt->width = geo.output.width; |
748 | mbfmt->height = geo.output.height; | |
749 | ret = v4l2_device_call_until_err(&vou_dev->v4l2_dev, 0, pad, | |
750 | set_fmt, NULL, &format); | |
a81fb9b2 GL |
751 | /* Must be implemented, so, don't check for -ENOIOCTLCMD */ |
752 | if (ret < 0) | |
753 | return ret; | |
754 | ||
755 | dev_dbg(vou_dev->v4l2_dev.dev, "%s(): %ux%u -> %ux%u\n", __func__, | |
ebf984bb | 756 | geo.output.width, geo.output.height, mbfmt->width, mbfmt->height); |
a81fb9b2 | 757 | |
66853ec4 HV |
758 | if (vou_dev->std & V4L2_STD_525_60) |
759 | img_height_max = 480; | |
760 | else | |
761 | img_height_max = 576; | |
762 | ||
a81fb9b2 | 763 | /* Sanity checks */ |
ebf984bb HV |
764 | if ((unsigned)mbfmt->width > VOU_MAX_IMAGE_WIDTH || |
765 | (unsigned)mbfmt->height > img_height_max || | |
766 | mbfmt->code != MEDIA_BUS_FMT_YUYV8_2X8) | |
a81fb9b2 GL |
767 | return -EIO; |
768 | ||
ebf984bb HV |
769 | if (mbfmt->width != geo.output.width || |
770 | mbfmt->height != geo.output.height) { | |
771 | geo.output.width = mbfmt->width; | |
772 | geo.output.height = mbfmt->height; | |
a81fb9b2 GL |
773 | |
774 | vou_adjust_input(&geo, vou_dev->std); | |
775 | } | |
776 | ||
777 | /* We tried to preserve output rectangle, but it could have changed */ | |
778 | vou_dev->rect = geo.output; | |
779 | pix->width = geo.in_width; | |
780 | pix->height = geo.in_height; | |
781 | ||
782 | dev_dbg(vou_dev->v4l2_dev.dev, "%s(): %ux%u\n", __func__, | |
783 | pix->width, pix->height); | |
784 | ||
785 | vou_dev->pix_idx = pix_idx; | |
786 | ||
787 | vou_dev->pix = *pix; | |
788 | ||
789 | sh_vou_configure_geometry(vou_dev, pix_idx, | |
790 | geo.scale_idx_h, geo.scale_idx_v); | |
791 | ||
792 | return 0; | |
793 | } | |
794 | ||
a81fb9b2 GL |
795 | static int sh_vou_reqbufs(struct file *file, void *priv, |
796 | struct v4l2_requestbuffers *req) | |
797 | { | |
d899eddd | 798 | struct sh_vou_device *vou_dev = video_drvdata(file); |
a81fb9b2 GL |
799 | struct sh_vou_file *vou_file = priv; |
800 | ||
d899eddd | 801 | dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); |
a81fb9b2 GL |
802 | |
803 | if (req->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) | |
804 | return -EINVAL; | |
805 | ||
806 | return videobuf_reqbufs(&vou_file->vbq, req); | |
807 | } | |
808 | ||
809 | static int sh_vou_querybuf(struct file *file, void *priv, | |
810 | struct v4l2_buffer *b) | |
811 | { | |
d899eddd | 812 | struct sh_vou_device *vou_dev = video_drvdata(file); |
a81fb9b2 GL |
813 | struct sh_vou_file *vou_file = priv; |
814 | ||
d899eddd | 815 | dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); |
a81fb9b2 GL |
816 | |
817 | return videobuf_querybuf(&vou_file->vbq, b); | |
818 | } | |
819 | ||
820 | static int sh_vou_qbuf(struct file *file, void *priv, struct v4l2_buffer *b) | |
821 | { | |
d899eddd | 822 | struct sh_vou_device *vou_dev = video_drvdata(file); |
a81fb9b2 GL |
823 | struct sh_vou_file *vou_file = priv; |
824 | ||
d899eddd | 825 | dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); |
a81fb9b2 GL |
826 | |
827 | return videobuf_qbuf(&vou_file->vbq, b); | |
828 | } | |
829 | ||
830 | static int sh_vou_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b) | |
831 | { | |
d899eddd | 832 | struct sh_vou_device *vou_dev = video_drvdata(file); |
a81fb9b2 GL |
833 | struct sh_vou_file *vou_file = priv; |
834 | ||
d899eddd | 835 | dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); |
a81fb9b2 GL |
836 | |
837 | return videobuf_dqbuf(&vou_file->vbq, b, file->f_flags & O_NONBLOCK); | |
838 | } | |
839 | ||
840 | static int sh_vou_streamon(struct file *file, void *priv, | |
841 | enum v4l2_buf_type buftype) | |
842 | { | |
fd51625d | 843 | struct sh_vou_device *vou_dev = video_drvdata(file); |
a81fb9b2 GL |
844 | struct sh_vou_file *vou_file = priv; |
845 | int ret; | |
846 | ||
d899eddd | 847 | dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); |
a81fb9b2 GL |
848 | |
849 | ret = v4l2_device_call_until_err(&vou_dev->v4l2_dev, 0, | |
850 | video, s_stream, 1); | |
851 | if (ret < 0 && ret != -ENOIOCTLCMD) | |
852 | return ret; | |
853 | ||
854 | /* This calls our .buf_queue() (== sh_vou_buf_queue) */ | |
855 | return videobuf_streamon(&vou_file->vbq); | |
856 | } | |
857 | ||
858 | static int sh_vou_streamoff(struct file *file, void *priv, | |
859 | enum v4l2_buf_type buftype) | |
860 | { | |
fd51625d | 861 | struct sh_vou_device *vou_dev = video_drvdata(file); |
a81fb9b2 GL |
862 | struct sh_vou_file *vou_file = priv; |
863 | ||
d899eddd | 864 | dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); |
a81fb9b2 GL |
865 | |
866 | /* | |
867 | * This calls buf_release from host driver's videobuf_queue_ops for all | |
868 | * remaining buffers. When the last buffer is freed, stop streaming | |
869 | */ | |
870 | videobuf_streamoff(&vou_file->vbq); | |
871 | v4l2_device_call_until_err(&vou_dev->v4l2_dev, 0, video, s_stream, 0); | |
872 | ||
873 | return 0; | |
874 | } | |
875 | ||
4de00d0e HV |
876 | static int sh_vou_enum_output(struct file *file, void *fh, |
877 | struct v4l2_output *a) | |
878 | { | |
879 | struct sh_vou_device *vou_dev = video_drvdata(file); | |
880 | ||
881 | if (a->index) | |
882 | return -EINVAL; | |
883 | strlcpy(a->name, "Video Out", sizeof(a->name)); | |
884 | a->type = V4L2_OUTPUT_TYPE_ANALOG; | |
885 | a->std = vou_dev->vdev.tvnorms; | |
886 | return 0; | |
887 | } | |
888 | ||
889 | int sh_vou_g_output(struct file *file, void *fh, unsigned int *i) | |
890 | { | |
891 | *i = 0; | |
892 | return 0; | |
893 | } | |
894 | ||
895 | int sh_vou_s_output(struct file *file, void *fh, unsigned int i) | |
896 | { | |
897 | return i ? -EINVAL : 0; | |
898 | } | |
899 | ||
a81fb9b2 GL |
900 | static u32 sh_vou_ntsc_mode(enum sh_vou_bus_fmt bus_fmt) |
901 | { | |
902 | switch (bus_fmt) { | |
903 | default: | |
904 | pr_warning("%s(): Invalid bus-format code %d, using default 8-bit\n", | |
905 | __func__, bus_fmt); | |
906 | case SH_VOU_BUS_8BIT: | |
907 | return 1; | |
908 | case SH_VOU_BUS_16BIT: | |
909 | return 0; | |
910 | case SH_VOU_BUS_BT656: | |
911 | return 3; | |
912 | } | |
913 | } | |
914 | ||
314527ac | 915 | static int sh_vou_s_std(struct file *file, void *priv, v4l2_std_id std_id) |
a81fb9b2 | 916 | { |
fd51625d | 917 | struct sh_vou_device *vou_dev = video_drvdata(file); |
a81fb9b2 GL |
918 | int ret; |
919 | ||
314527ac | 920 | dev_dbg(vou_dev->v4l2_dev.dev, "%s(): 0x%llx\n", __func__, std_id); |
a81fb9b2 | 921 | |
d079f99f | 922 | if (std_id & ~vou_dev->vdev.tvnorms) |
a81fb9b2 GL |
923 | return -EINVAL; |
924 | ||
925 | ret = v4l2_device_call_until_err(&vou_dev->v4l2_dev, 0, video, | |
314527ac | 926 | s_std_output, std_id); |
a81fb9b2 GL |
927 | /* Shall we continue, if the subdev doesn't support .s_std_output()? */ |
928 | if (ret < 0 && ret != -ENOIOCTLCMD) | |
929 | return ret; | |
930 | ||
314527ac | 931 | if (std_id & V4L2_STD_525_60) |
a81fb9b2 GL |
932 | sh_vou_reg_ab_set(vou_dev, VOUCR, |
933 | sh_vou_ntsc_mode(vou_dev->pdata->bus_fmt) << 29, 7 << 29); | |
934 | else | |
935 | sh_vou_reg_ab_set(vou_dev, VOUCR, 5 << 29, 7 << 29); | |
936 | ||
314527ac | 937 | vou_dev->std = std_id; |
a81fb9b2 GL |
938 | |
939 | return 0; | |
940 | } | |
941 | ||
942 | static int sh_vou_g_std(struct file *file, void *priv, v4l2_std_id *std) | |
943 | { | |
fd51625d | 944 | struct sh_vou_device *vou_dev = video_drvdata(file); |
a81fb9b2 GL |
945 | |
946 | dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); | |
947 | ||
948 | *std = vou_dev->std; | |
949 | ||
950 | return 0; | |
951 | } | |
952 | ||
61fbacc1 HV |
953 | static int sh_vou_g_selection(struct file *file, void *fh, |
954 | struct v4l2_selection *sel) | |
a81fb9b2 | 955 | { |
fd51625d | 956 | struct sh_vou_device *vou_dev = video_drvdata(file); |
a81fb9b2 | 957 | |
61fbacc1 HV |
958 | if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) |
959 | return -EINVAL; | |
960 | switch (sel->target) { | |
961 | case V4L2_SEL_TGT_COMPOSE: | |
962 | sel->r = vou_dev->rect; | |
963 | break; | |
964 | case V4L2_SEL_TGT_COMPOSE_DEFAULT: | |
965 | case V4L2_SEL_TGT_COMPOSE_BOUNDS: | |
966 | sel->r.left = 0; | |
967 | sel->r.top = 0; | |
968 | sel->r.width = VOU_MAX_IMAGE_WIDTH; | |
969 | sel->r.height = VOU_MAX_IMAGE_HEIGHT; | |
970 | break; | |
971 | default: | |
972 | return -EINVAL; | |
973 | } | |
a81fb9b2 GL |
974 | return 0; |
975 | } | |
976 | ||
977 | /* Assume a dull encoder, do all the work ourselves. */ | |
61fbacc1 HV |
978 | static int sh_vou_s_selection(struct file *file, void *fh, |
979 | struct v4l2_selection *sel) | |
a81fb9b2 | 980 | { |
61fbacc1 | 981 | struct v4l2_rect *rect = &sel->r; |
fd51625d | 982 | struct sh_vou_device *vou_dev = video_drvdata(file); |
a81fb9b2 GL |
983 | struct v4l2_crop sd_crop = {.type = V4L2_BUF_TYPE_VIDEO_OUTPUT}; |
984 | struct v4l2_pix_format *pix = &vou_dev->pix; | |
985 | struct sh_vou_geometry geo; | |
ebf984bb HV |
986 | struct v4l2_subdev_format format = { |
987 | .which = V4L2_SUBDEV_FORMAT_ACTIVE, | |
a81fb9b2 | 988 | /* Revisit: is this the correct code? */ |
ebf984bb HV |
989 | .format.code = MEDIA_BUS_FMT_YUYV8_2X8, |
990 | .format.field = V4L2_FIELD_INTERLACED, | |
991 | .format.colorspace = V4L2_COLORSPACE_SMPTE170M, | |
a81fb9b2 | 992 | }; |
765fe17c | 993 | unsigned int img_height_max; |
a81fb9b2 GL |
994 | int ret; |
995 | ||
61fbacc1 HV |
996 | if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT || |
997 | sel->target != V4L2_SEL_TGT_COMPOSE) | |
a81fb9b2 GL |
998 | return -EINVAL; |
999 | ||
765fe17c GL |
1000 | if (vou_dev->std & V4L2_STD_525_60) |
1001 | img_height_max = 480; | |
1002 | else | |
1003 | img_height_max = 576; | |
1004 | ||
a81fb9b2 | 1005 | v4l_bound_align_image(&rect->width, 0, VOU_MAX_IMAGE_WIDTH, 1, |
765fe17c | 1006 | &rect->height, 0, img_height_max, 1, 0); |
a81fb9b2 GL |
1007 | |
1008 | if (rect->width + rect->left > VOU_MAX_IMAGE_WIDTH) | |
1009 | rect->left = VOU_MAX_IMAGE_WIDTH - rect->width; | |
1010 | ||
765fe17c GL |
1011 | if (rect->height + rect->top > img_height_max) |
1012 | rect->top = img_height_max - rect->height; | |
a81fb9b2 GL |
1013 | |
1014 | geo.output = *rect; | |
1015 | geo.in_width = pix->width; | |
1016 | geo.in_height = pix->height; | |
1017 | ||
1018 | /* Configure the encoder one-to-one, position at 0, ignore errors */ | |
1019 | sd_crop.c.width = geo.output.width; | |
1020 | sd_crop.c.height = geo.output.height; | |
1021 | /* | |
1022 | * We first issue a S_CROP, so that the subsequent S_FMT delivers the | |
1023 | * final encoder configuration. | |
1024 | */ | |
1025 | v4l2_device_call_until_err(&vou_dev->v4l2_dev, 0, video, | |
1026 | s_crop, &sd_crop); | |
ebf984bb HV |
1027 | format.format.width = geo.output.width; |
1028 | format.format.height = geo.output.height; | |
1029 | ret = v4l2_device_call_until_err(&vou_dev->v4l2_dev, 0, pad, | |
1030 | set_fmt, NULL, &format); | |
a81fb9b2 GL |
1031 | /* Must be implemented, so, don't check for -ENOIOCTLCMD */ |
1032 | if (ret < 0) | |
1033 | return ret; | |
1034 | ||
1035 | /* Sanity checks */ | |
ebf984bb HV |
1036 | if ((unsigned)format.format.width > VOU_MAX_IMAGE_WIDTH || |
1037 | (unsigned)format.format.height > img_height_max || | |
1038 | format.format.code != MEDIA_BUS_FMT_YUYV8_2X8) | |
a81fb9b2 GL |
1039 | return -EIO; |
1040 | ||
ebf984bb HV |
1041 | geo.output.width = format.format.width; |
1042 | geo.output.height = format.format.height; | |
a81fb9b2 GL |
1043 | |
1044 | /* | |
1045 | * No down-scaling. According to the API, current call has precedence: | |
1046 | * http://v4l2spec.bytesex.org/spec/x1904.htm#AEN1954 paragraph two. | |
1047 | */ | |
1048 | vou_adjust_input(&geo, vou_dev->std); | |
1049 | ||
1050 | /* We tried to preserve output rectangle, but it could have changed */ | |
1051 | vou_dev->rect = geo.output; | |
1052 | pix->width = geo.in_width; | |
1053 | pix->height = geo.in_height; | |
1054 | ||
1055 | sh_vou_configure_geometry(vou_dev, vou_dev->pix_idx, | |
1056 | geo.scale_idx_h, geo.scale_idx_v); | |
1057 | ||
1058 | return 0; | |
1059 | } | |
1060 | ||
a81fb9b2 GL |
1061 | static irqreturn_t sh_vou_isr(int irq, void *dev_id) |
1062 | { | |
1063 | struct sh_vou_device *vou_dev = dev_id; | |
1064 | static unsigned long j; | |
1065 | struct videobuf_buffer *vb; | |
1066 | static int cnt; | |
a81fb9b2 GL |
1067 | u32 irq_status = sh_vou_reg_a_read(vou_dev, VOUIR), masked; |
1068 | u32 vou_status = sh_vou_reg_a_read(vou_dev, VOUSTR); | |
1069 | ||
1070 | if (!(irq_status & 0x300)) { | |
1071 | if (printk_timed_ratelimit(&j, 500)) | |
1072 | dev_warn(vou_dev->v4l2_dev.dev, "IRQ status 0x%x!\n", | |
1073 | irq_status); | |
1074 | return IRQ_NONE; | |
1075 | } | |
1076 | ||
1077 | spin_lock(&vou_dev->lock); | |
1078 | if (!vou_dev->active || list_empty(&vou_dev->queue)) { | |
1079 | if (printk_timed_ratelimit(&j, 500)) | |
1080 | dev_warn(vou_dev->v4l2_dev.dev, | |
1081 | "IRQ without active buffer: %x!\n", irq_status); | |
1082 | /* Just ack: buf_release will disable further interrupts */ | |
1083 | sh_vou_reg_a_set(vou_dev, VOUIR, 0, 0x300); | |
1084 | spin_unlock(&vou_dev->lock); | |
1085 | return IRQ_HANDLED; | |
1086 | } | |
1087 | ||
1088 | masked = ~(0x300 & irq_status) & irq_status & 0x30304; | |
1089 | dev_dbg(vou_dev->v4l2_dev.dev, | |
1090 | "IRQ status 0x%x -> 0x%x, VOU status 0x%x, cnt %d\n", | |
1091 | irq_status, masked, vou_status, cnt); | |
1092 | ||
1093 | cnt++; | |
a622cc51 | 1094 | /* side = vou_status & 0x10000; */ |
a81fb9b2 GL |
1095 | |
1096 | /* Clear only set interrupts */ | |
1097 | sh_vou_reg_a_write(vou_dev, VOUIR, masked); | |
1098 | ||
1099 | vb = vou_dev->active; | |
1100 | list_del(&vb->queue); | |
1101 | ||
1102 | vb->state = VIDEOBUF_DONE; | |
8e6057b5 | 1103 | v4l2_get_timestamp(&vb->ts); |
a81fb9b2 GL |
1104 | vb->field_count++; |
1105 | wake_up(&vb->done); | |
1106 | ||
1107 | if (list_empty(&vou_dev->queue)) { | |
1108 | /* Stop VOU */ | |
1109 | dev_dbg(vou_dev->v4l2_dev.dev, "%s: queue empty after %d\n", | |
1110 | __func__, cnt); | |
1111 | sh_vou_reg_a_set(vou_dev, VOUER, 0, 1); | |
1112 | vou_dev->active = NULL; | |
1113 | vou_dev->status = SH_VOU_INITIALISING; | |
1114 | /* Disable End-of-Frame (VSYNC) interrupts */ | |
1115 | sh_vou_reg_a_set(vou_dev, VOUIR, 0, 0x30000); | |
1116 | spin_unlock(&vou_dev->lock); | |
1117 | return IRQ_HANDLED; | |
1118 | } | |
1119 | ||
1120 | vou_dev->active = list_entry(vou_dev->queue.next, | |
1121 | struct videobuf_buffer, queue); | |
1122 | ||
1123 | if (vou_dev->active->queue.next != &vou_dev->queue) { | |
1124 | struct videobuf_buffer *new = list_entry(vou_dev->active->queue.next, | |
1125 | struct videobuf_buffer, queue); | |
1126 | sh_vou_schedule_next(vou_dev, new); | |
1127 | } | |
1128 | ||
1129 | spin_unlock(&vou_dev->lock); | |
1130 | ||
1131 | return IRQ_HANDLED; | |
1132 | } | |
1133 | ||
1134 | static int sh_vou_hw_init(struct sh_vou_device *vou_dev) | |
1135 | { | |
1136 | struct sh_vou_pdata *pdata = vou_dev->pdata; | |
1137 | u32 voucr = sh_vou_ntsc_mode(pdata->bus_fmt) << 29; | |
1138 | int i = 100; | |
1139 | ||
1140 | /* Disable all IRQs */ | |
1141 | sh_vou_reg_a_write(vou_dev, VOUIR, 0); | |
1142 | ||
1143 | /* Reset VOU interfaces - registers unaffected */ | |
1144 | sh_vou_reg_a_write(vou_dev, VOUSRR, 0x101); | |
1145 | while (--i && (sh_vou_reg_a_read(vou_dev, VOUSRR) & 0x101)) | |
1146 | udelay(1); | |
1147 | ||
1148 | if (!i) | |
1149 | return -ETIMEDOUT; | |
1150 | ||
1151 | dev_dbg(vou_dev->v4l2_dev.dev, "Reset took %dus\n", 100 - i); | |
1152 | ||
1153 | if (pdata->flags & SH_VOU_PCLK_FALLING) | |
1154 | voucr |= 1 << 28; | |
1155 | if (pdata->flags & SH_VOU_HSYNC_LOW) | |
1156 | voucr |= 1 << 27; | |
1157 | if (pdata->flags & SH_VOU_VSYNC_LOW) | |
1158 | voucr |= 1 << 26; | |
1159 | sh_vou_reg_ab_set(vou_dev, VOUCR, voucr, 0xfc000000); | |
1160 | ||
1161 | /* Manual register side switching at first */ | |
1162 | sh_vou_reg_a_write(vou_dev, VOURCR, 4); | |
1163 | /* Default - fixed HSYNC length, can be made configurable is required */ | |
1164 | sh_vou_reg_ab_write(vou_dev, VOUMSR, 0x800000); | |
1165 | ||
1166 | return 0; | |
1167 | } | |
1168 | ||
1169 | /* File operations */ | |
1170 | static int sh_vou_open(struct file *file) | |
1171 | { | |
fd51625d | 1172 | struct sh_vou_device *vou_dev = video_drvdata(file); |
a81fb9b2 GL |
1173 | struct sh_vou_file *vou_file = kzalloc(sizeof(struct sh_vou_file), |
1174 | GFP_KERNEL); | |
1175 | ||
1176 | if (!vou_file) | |
1177 | return -ENOMEM; | |
1178 | ||
1179 | dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); | |
1180 | ||
c5f98085 | 1181 | v4l2_fh_init(&vou_file->fh, &vou_dev->vdev); |
2160abb2 AK |
1182 | if (mutex_lock_interruptible(&vou_dev->fop_lock)) { |
1183 | kfree(vou_file); | |
f135a8a2 | 1184 | return -ERESTARTSYS; |
2160abb2 | 1185 | } |
c5f98085 HV |
1186 | v4l2_fh_add(&vou_file->fh); |
1187 | if (v4l2_fh_is_singular(&vou_file->fh)) { | |
a81fb9b2 | 1188 | int ret; |
c5f98085 | 1189 | |
a81fb9b2 GL |
1190 | /* First open */ |
1191 | vou_dev->status = SH_VOU_INITIALISING; | |
fd51625d | 1192 | pm_runtime_get_sync(vou_dev->v4l2_dev.dev); |
a81fb9b2 GL |
1193 | ret = sh_vou_hw_init(vou_dev); |
1194 | if (ret < 0) { | |
fd51625d | 1195 | pm_runtime_put(vou_dev->v4l2_dev.dev); |
a81fb9b2 | 1196 | vou_dev->status = SH_VOU_IDLE; |
c5f98085 HV |
1197 | v4l2_fh_del(&vou_file->fh); |
1198 | v4l2_fh_exit(&vou_file->fh); | |
f135a8a2 | 1199 | mutex_unlock(&vou_dev->fop_lock); |
2160abb2 | 1200 | kfree(vou_file); |
a81fb9b2 GL |
1201 | return ret; |
1202 | } | |
1203 | } | |
1204 | ||
1205 | videobuf_queue_dma_contig_init(&vou_file->vbq, &sh_vou_video_qops, | |
1206 | vou_dev->v4l2_dev.dev, &vou_dev->lock, | |
1207 | V4L2_BUF_TYPE_VIDEO_OUTPUT, | |
1208 | V4L2_FIELD_NONE, | |
fd51625d | 1209 | sizeof(struct videobuf_buffer), |
d079f99f | 1210 | &vou_dev->vdev, &vou_dev->fop_lock); |
f135a8a2 | 1211 | mutex_unlock(&vou_dev->fop_lock); |
a81fb9b2 | 1212 | |
2160abb2 AK |
1213 | file->private_data = vou_file; |
1214 | ||
a81fb9b2 GL |
1215 | return 0; |
1216 | } | |
1217 | ||
1218 | static int sh_vou_release(struct file *file) | |
1219 | { | |
fd51625d | 1220 | struct sh_vou_device *vou_dev = video_drvdata(file); |
a81fb9b2 GL |
1221 | struct sh_vou_file *vou_file = file->private_data; |
1222 | ||
d899eddd | 1223 | dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); |
a81fb9b2 | 1224 | |
c5f98085 HV |
1225 | mutex_lock(&vou_dev->fop_lock); |
1226 | if (v4l2_fh_is_singular(&vou_file->fh)) { | |
a81fb9b2 GL |
1227 | /* Last close */ |
1228 | vou_dev->status = SH_VOU_IDLE; | |
1229 | sh_vou_reg_a_set(vou_dev, VOUER, 0, 0x101); | |
fd51625d | 1230 | pm_runtime_put(vou_dev->v4l2_dev.dev); |
a81fb9b2 | 1231 | } |
c5f98085 HV |
1232 | v4l2_fh_del(&vou_file->fh); |
1233 | v4l2_fh_exit(&vou_file->fh); | |
1234 | mutex_unlock(&vou_dev->fop_lock); | |
a81fb9b2 GL |
1235 | |
1236 | file->private_data = NULL; | |
1237 | kfree(vou_file); | |
1238 | ||
1239 | return 0; | |
1240 | } | |
1241 | ||
1242 | static int sh_vou_mmap(struct file *file, struct vm_area_struct *vma) | |
1243 | { | |
fd51625d | 1244 | struct sh_vou_device *vou_dev = video_drvdata(file); |
a81fb9b2 | 1245 | struct sh_vou_file *vou_file = file->private_data; |
f135a8a2 | 1246 | int ret; |
a81fb9b2 | 1247 | |
d899eddd | 1248 | dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); |
a81fb9b2 | 1249 | |
f135a8a2 HV |
1250 | if (mutex_lock_interruptible(&vou_dev->fop_lock)) |
1251 | return -ERESTARTSYS; | |
1252 | ret = videobuf_mmap_mapper(&vou_file->vbq, vma); | |
1253 | mutex_unlock(&vou_dev->fop_lock); | |
1254 | return ret; | |
a81fb9b2 GL |
1255 | } |
1256 | ||
1257 | static unsigned int sh_vou_poll(struct file *file, poll_table *wait) | |
1258 | { | |
fd51625d | 1259 | struct sh_vou_device *vou_dev = video_drvdata(file); |
a81fb9b2 | 1260 | struct sh_vou_file *vou_file = file->private_data; |
f135a8a2 | 1261 | unsigned int res; |
a81fb9b2 | 1262 | |
d899eddd | 1263 | dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); |
a81fb9b2 | 1264 | |
f135a8a2 HV |
1265 | mutex_lock(&vou_dev->fop_lock); |
1266 | res = videobuf_poll_stream(file, &vou_file->vbq, wait); | |
1267 | mutex_unlock(&vou_dev->fop_lock); | |
1268 | return res; | |
a81fb9b2 GL |
1269 | } |
1270 | ||
a81fb9b2 GL |
1271 | /* sh_vou display ioctl operations */ |
1272 | static const struct v4l2_ioctl_ops sh_vou_ioctl_ops = { | |
1273 | .vidioc_querycap = sh_vou_querycap, | |
1274 | .vidioc_enum_fmt_vid_out = sh_vou_enum_fmt_vid_out, | |
1275 | .vidioc_g_fmt_vid_out = sh_vou_g_fmt_vid_out, | |
1276 | .vidioc_s_fmt_vid_out = sh_vou_s_fmt_vid_out, | |
1277 | .vidioc_try_fmt_vid_out = sh_vou_try_fmt_vid_out, | |
1278 | .vidioc_reqbufs = sh_vou_reqbufs, | |
1279 | .vidioc_querybuf = sh_vou_querybuf, | |
1280 | .vidioc_qbuf = sh_vou_qbuf, | |
1281 | .vidioc_dqbuf = sh_vou_dqbuf, | |
1282 | .vidioc_streamon = sh_vou_streamon, | |
1283 | .vidioc_streamoff = sh_vou_streamoff, | |
4de00d0e HV |
1284 | .vidioc_g_output = sh_vou_g_output, |
1285 | .vidioc_s_output = sh_vou_s_output, | |
1286 | .vidioc_enum_output = sh_vou_enum_output, | |
a81fb9b2 GL |
1287 | .vidioc_s_std = sh_vou_s_std, |
1288 | .vidioc_g_std = sh_vou_g_std, | |
61fbacc1 HV |
1289 | .vidioc_g_selection = sh_vou_g_selection, |
1290 | .vidioc_s_selection = sh_vou_s_selection, | |
a81fb9b2 GL |
1291 | }; |
1292 | ||
1293 | static const struct v4l2_file_operations sh_vou_fops = { | |
1294 | .owner = THIS_MODULE, | |
1295 | .open = sh_vou_open, | |
1296 | .release = sh_vou_release, | |
69756693 | 1297 | .unlocked_ioctl = video_ioctl2, |
a81fb9b2 GL |
1298 | .mmap = sh_vou_mmap, |
1299 | .poll = sh_vou_poll, | |
1300 | }; | |
1301 | ||
1302 | static const struct video_device sh_vou_video_template = { | |
1303 | .name = "sh_vou", | |
1304 | .fops = &sh_vou_fops, | |
1305 | .ioctl_ops = &sh_vou_ioctl_ops, | |
1306 | .tvnorms = V4L2_STD_525_60, /* PAL only supported in 8-bit non-bt656 mode */ | |
954f340f | 1307 | .vfl_dir = VFL_DIR_TX, |
a81fb9b2 GL |
1308 | }; |
1309 | ||
4c62e976 | 1310 | static int sh_vou_probe(struct platform_device *pdev) |
a81fb9b2 GL |
1311 | { |
1312 | struct sh_vou_pdata *vou_pdata = pdev->dev.platform_data; | |
1313 | struct v4l2_rect *rect; | |
1314 | struct v4l2_pix_format *pix; | |
1315 | struct i2c_adapter *i2c_adap; | |
1316 | struct video_device *vdev; | |
1317 | struct sh_vou_device *vou_dev; | |
4690271c | 1318 | struct resource *reg_res; |
a81fb9b2 GL |
1319 | struct v4l2_subdev *subdev; |
1320 | int irq, ret; | |
1321 | ||
1322 | reg_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
1323 | irq = platform_get_irq(pdev, 0); | |
1324 | ||
1325 | if (!vou_pdata || !reg_res || irq <= 0) { | |
1326 | dev_err(&pdev->dev, "Insufficient VOU platform information.\n"); | |
1327 | return -ENODEV; | |
1328 | } | |
1329 | ||
4690271c | 1330 | vou_dev = devm_kzalloc(&pdev->dev, sizeof(*vou_dev), GFP_KERNEL); |
a81fb9b2 GL |
1331 | if (!vou_dev) |
1332 | return -ENOMEM; | |
1333 | ||
1334 | INIT_LIST_HEAD(&vou_dev->queue); | |
1335 | spin_lock_init(&vou_dev->lock); | |
69756693 | 1336 | mutex_init(&vou_dev->fop_lock); |
a81fb9b2 GL |
1337 | vou_dev->pdata = vou_pdata; |
1338 | vou_dev->status = SH_VOU_IDLE; | |
1339 | ||
1340 | rect = &vou_dev->rect; | |
1341 | pix = &vou_dev->pix; | |
1342 | ||
1343 | /* Fill in defaults */ | |
5d408108 | 1344 | vou_dev->std = V4L2_STD_NTSC_M; |
a81fb9b2 GL |
1345 | rect->left = 0; |
1346 | rect->top = 0; | |
1347 | rect->width = VOU_MAX_IMAGE_WIDTH; | |
765fe17c | 1348 | rect->height = 480; |
a81fb9b2 | 1349 | pix->width = VOU_MAX_IMAGE_WIDTH; |
765fe17c | 1350 | pix->height = 480; |
22df2e7a | 1351 | pix->pixelformat = V4L2_PIX_FMT_NV16; |
a81fb9b2 | 1352 | pix->field = V4L2_FIELD_NONE; |
5c3edcb2 | 1353 | pix->bytesperline = VOU_MAX_IMAGE_WIDTH; |
765fe17c | 1354 | pix->sizeimage = VOU_MAX_IMAGE_WIDTH * 2 * 480; |
a81fb9b2 GL |
1355 | pix->colorspace = V4L2_COLORSPACE_SMPTE170M; |
1356 | ||
4690271c HV |
1357 | vou_dev->base = devm_ioremap_resource(&pdev->dev, reg_res); |
1358 | if (IS_ERR(vou_dev->base)) | |
1359 | return PTR_ERR(vou_dev->base); | |
a81fb9b2 | 1360 | |
4690271c | 1361 | ret = devm_request_irq(&pdev->dev, irq, sh_vou_isr, 0, "vou", vou_dev); |
a81fb9b2 | 1362 | if (ret < 0) |
4690271c | 1363 | return ret; |
a81fb9b2 GL |
1364 | |
1365 | ret = v4l2_device_register(&pdev->dev, &vou_dev->v4l2_dev); | |
1366 | if (ret < 0) { | |
1367 | dev_err(&pdev->dev, "Error registering v4l2 device\n"); | |
4690271c | 1368 | return ret; |
a81fb9b2 GL |
1369 | } |
1370 | ||
d079f99f | 1371 | vdev = &vou_dev->vdev; |
a81fb9b2 GL |
1372 | *vdev = sh_vou_video_template; |
1373 | if (vou_pdata->bus_fmt == SH_VOU_BUS_8BIT) | |
1374 | vdev->tvnorms |= V4L2_STD_PAL; | |
1375 | vdev->v4l2_dev = &vou_dev->v4l2_dev; | |
d079f99f | 1376 | vdev->release = video_device_release_empty; |
69756693 | 1377 | vdev->lock = &vou_dev->fop_lock; |
a81fb9b2 | 1378 | |
a81fb9b2 GL |
1379 | video_set_drvdata(vdev, vou_dev); |
1380 | ||
1381 | pm_runtime_enable(&pdev->dev); | |
1382 | pm_runtime_resume(&pdev->dev); | |
1383 | ||
1384 | i2c_adap = i2c_get_adapter(vou_pdata->i2c_adap); | |
1385 | if (!i2c_adap) { | |
1386 | ret = -ENODEV; | |
1387 | goto ei2cgadap; | |
1388 | } | |
1389 | ||
1390 | ret = sh_vou_hw_init(vou_dev); | |
1391 | if (ret < 0) | |
1392 | goto ereset; | |
1393 | ||
1394 | subdev = v4l2_i2c_new_subdev_board(&vou_dev->v4l2_dev, i2c_adap, | |
9a1f8b34 | 1395 | vou_pdata->board_info, NULL); |
a81fb9b2 GL |
1396 | if (!subdev) { |
1397 | ret = -ENOMEM; | |
1398 | goto ei2cnd; | |
1399 | } | |
1400 | ||
1401 | ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1); | |
1402 | if (ret < 0) | |
1403 | goto evregdev; | |
1404 | ||
1405 | return 0; | |
1406 | ||
1407 | evregdev: | |
1408 | ei2cnd: | |
1409 | ereset: | |
1410 | i2c_put_adapter(i2c_adap); | |
1411 | ei2cgadap: | |
a81fb9b2 | 1412 | pm_runtime_disable(&pdev->dev); |
a81fb9b2 | 1413 | v4l2_device_unregister(&vou_dev->v4l2_dev); |
a81fb9b2 GL |
1414 | return ret; |
1415 | } | |
1416 | ||
4c62e976 | 1417 | static int sh_vou_remove(struct platform_device *pdev) |
a81fb9b2 | 1418 | { |
a81fb9b2 GL |
1419 | struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev); |
1420 | struct sh_vou_device *vou_dev = container_of(v4l2_dev, | |
1421 | struct sh_vou_device, v4l2_dev); | |
1422 | struct v4l2_subdev *sd = list_entry(v4l2_dev->subdevs.next, | |
1423 | struct v4l2_subdev, list); | |
1424 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
a81fb9b2 | 1425 | |
a81fb9b2 | 1426 | pm_runtime_disable(&pdev->dev); |
d079f99f | 1427 | video_unregister_device(&vou_dev->vdev); |
a81fb9b2 GL |
1428 | i2c_put_adapter(client->adapter); |
1429 | v4l2_device_unregister(&vou_dev->v4l2_dev); | |
a81fb9b2 GL |
1430 | return 0; |
1431 | } | |
1432 | ||
1433 | static struct platform_driver __refdata sh_vou = { | |
4c62e976 | 1434 | .remove = sh_vou_remove, |
a81fb9b2 GL |
1435 | .driver = { |
1436 | .name = "sh-vou", | |
a81fb9b2 GL |
1437 | }, |
1438 | }; | |
1439 | ||
b3fd87bc | 1440 | module_platform_driver_probe(sh_vou, sh_vou_probe); |
a81fb9b2 GL |
1441 | |
1442 | MODULE_DESCRIPTION("SuperH VOU driver"); | |
1443 | MODULE_AUTHOR("Guennadi Liakhovetski <g.liakhovetski@gmx.de>"); | |
1444 | MODULE_LICENSE("GPL v2"); | |
64dc3c1a | 1445 | MODULE_VERSION("0.1.0"); |
a81fb9b2 | 1446 | MODULE_ALIAS("platform:sh-vou"); |