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babde1c2 SN |
1 | /* |
2 | * s3c24xx/s3c64xx SoC series Camera Interface (CAMIF) driver | |
3 | * | |
4 | * Copyright (C) 2012 Sylwester Nawrocki <sylvester.nawrocki@gmail.com> | |
5 | * Copyright (C) 2012 Tomasz Figa <tomasz.figa@gmail.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published | |
9 | * by the Free Software Foundation, either version 2 of the License, | |
10 | * or (at your option) any later version. | |
11 | */ | |
12 | #define pr_fmt(fmt) "%s:%d " fmt, __func__, __LINE__ | |
13 | ||
14 | #include <linux/bug.h> | |
15 | #include <linux/clk.h> | |
16 | #include <linux/delay.h> | |
17 | #include <linux/device.h> | |
18 | #include <linux/errno.h> | |
19 | #include <linux/gpio.h> | |
20 | #include <linux/i2c.h> | |
21 | #include <linux/interrupt.h> | |
22 | #include <linux/io.h> | |
23 | #include <linux/kernel.h> | |
24 | #include <linux/list.h> | |
25 | #include <linux/module.h> | |
26 | #include <linux/platform_device.h> | |
27 | #include <linux/pm_runtime.h> | |
28 | #include <linux/slab.h> | |
29 | #include <linux/types.h> | |
250539a3 | 30 | #include <linux/version.h> |
babde1c2 SN |
31 | |
32 | #include <media/media-device.h> | |
33 | #include <media/v4l2-ctrls.h> | |
34 | #include <media/v4l2-ioctl.h> | |
c139990e | 35 | #include <media/videobuf2-v4l2.h> |
babde1c2 SN |
36 | #include <media/videobuf2-dma-contig.h> |
37 | ||
38 | #include "camif-core.h" | |
39 | ||
40 | static char *camif_clocks[CLK_MAX_NUM] = { | |
41 | /* HCLK CAMIF clock */ | |
42 | [CLK_GATE] = "camif", | |
43 | /* CAMIF / external camera sensor master clock */ | |
44 | [CLK_CAM] = "camera", | |
45 | }; | |
46 | ||
47 | static const struct camif_fmt camif_formats[] = { | |
48 | { | |
49 | .name = "YUV 4:2:2 planar, Y/Cb/Cr", | |
50 | .fourcc = V4L2_PIX_FMT_YUV422P, | |
51 | .depth = 16, | |
52 | .ybpp = 1, | |
53 | .color = IMG_FMT_YCBCR422P, | |
54 | .colplanes = 3, | |
55 | .flags = FMT_FL_S3C24XX_CODEC | | |
56 | FMT_FL_S3C64XX, | |
57 | }, { | |
58 | .name = "YUV 4:2:0 planar, Y/Cb/Cr", | |
59 | .fourcc = V4L2_PIX_FMT_YUV420, | |
60 | .depth = 12, | |
61 | .ybpp = 1, | |
62 | .color = IMG_FMT_YCBCR420, | |
63 | .colplanes = 3, | |
64 | .flags = FMT_FL_S3C24XX_CODEC | | |
65 | FMT_FL_S3C64XX, | |
66 | }, { | |
67 | .name = "YVU 4:2:0 planar, Y/Cr/Cb", | |
68 | .fourcc = V4L2_PIX_FMT_YVU420, | |
69 | .depth = 12, | |
70 | .ybpp = 1, | |
71 | .color = IMG_FMT_YCRCB420, | |
72 | .colplanes = 3, | |
73 | .flags = FMT_FL_S3C24XX_CODEC | | |
74 | FMT_FL_S3C64XX, | |
75 | }, { | |
76 | .name = "RGB565, 16 bpp", | |
77 | .fourcc = V4L2_PIX_FMT_RGB565X, | |
78 | .depth = 16, | |
79 | .ybpp = 2, | |
80 | .color = IMG_FMT_RGB565, | |
81 | .colplanes = 1, | |
82 | .flags = FMT_FL_S3C24XX_PREVIEW | | |
83 | FMT_FL_S3C64XX, | |
84 | }, { | |
85 | .name = "XRGB8888, 32 bpp", | |
86 | .fourcc = V4L2_PIX_FMT_RGB32, | |
87 | .depth = 32, | |
88 | .ybpp = 4, | |
89 | .color = IMG_FMT_XRGB8888, | |
90 | .colplanes = 1, | |
91 | .flags = FMT_FL_S3C24XX_PREVIEW | | |
92 | FMT_FL_S3C64XX, | |
93 | }, { | |
94 | .name = "BGR666", | |
95 | .fourcc = V4L2_PIX_FMT_BGR666, | |
96 | .depth = 32, | |
97 | .ybpp = 4, | |
98 | .color = IMG_FMT_RGB666, | |
99 | .colplanes = 1, | |
100 | .flags = FMT_FL_S3C64XX, | |
101 | } | |
102 | }; | |
103 | ||
104 | /** | |
105 | * s3c_camif_find_format() - lookup camif color format by fourcc or an index | |
106 | * @pixelformat: fourcc to match, ignored if null | |
107 | * @index: index to the camif_formats array, ignored if negative | |
108 | */ | |
109 | const struct camif_fmt *s3c_camif_find_format(struct camif_vp *vp, | |
110 | const u32 *pixelformat, | |
111 | int index) | |
112 | { | |
113 | const struct camif_fmt *fmt, *def_fmt = NULL; | |
114 | unsigned int i; | |
115 | int id = 0; | |
116 | ||
117 | if (index >= (int)ARRAY_SIZE(camif_formats)) | |
118 | return NULL; | |
119 | ||
120 | for (i = 0; i < ARRAY_SIZE(camif_formats); ++i) { | |
121 | fmt = &camif_formats[i]; | |
122 | if (vp && !(vp->fmt_flags & fmt->flags)) | |
123 | continue; | |
124 | if (pixelformat && fmt->fourcc == *pixelformat) | |
125 | return fmt; | |
126 | if (index == id) | |
127 | def_fmt = fmt; | |
128 | id++; | |
129 | } | |
130 | return def_fmt; | |
131 | } | |
132 | ||
133 | static int camif_get_scaler_factor(u32 src, u32 tar, u32 *ratio, u32 *shift) | |
134 | { | |
135 | unsigned int sh = 6; | |
136 | ||
137 | if (src >= 64 * tar) | |
138 | return -EINVAL; | |
139 | ||
140 | while (sh--) { | |
141 | unsigned int tmp = 1 << sh; | |
142 | if (src >= tar * tmp) { | |
143 | *shift = sh, *ratio = tmp; | |
144 | return 0; | |
145 | } | |
146 | } | |
147 | *shift = 0, *ratio = 1; | |
148 | return 0; | |
149 | } | |
150 | ||
151 | int s3c_camif_get_scaler_config(struct camif_vp *vp, | |
152 | struct camif_scaler *scaler) | |
153 | { | |
154 | struct v4l2_rect *camif_crop = &vp->camif->camif_crop; | |
155 | int source_x = camif_crop->width; | |
156 | int source_y = camif_crop->height; | |
157 | int target_x = vp->out_frame.rect.width; | |
158 | int target_y = vp->out_frame.rect.height; | |
159 | int ret; | |
160 | ||
161 | if (vp->rotation == 90 || vp->rotation == 270) | |
162 | swap(target_x, target_y); | |
163 | ||
164 | ret = camif_get_scaler_factor(source_x, target_x, &scaler->pre_h_ratio, | |
165 | &scaler->h_shift); | |
166 | if (ret < 0) | |
167 | return ret; | |
168 | ||
169 | ret = camif_get_scaler_factor(source_y, target_y, &scaler->pre_v_ratio, | |
170 | &scaler->v_shift); | |
171 | if (ret < 0) | |
172 | return ret; | |
173 | ||
174 | scaler->pre_dst_width = source_x / scaler->pre_h_ratio; | |
175 | scaler->pre_dst_height = source_y / scaler->pre_v_ratio; | |
176 | ||
177 | scaler->main_h_ratio = (source_x << 8) / (target_x << scaler->h_shift); | |
178 | scaler->main_v_ratio = (source_y << 8) / (target_y << scaler->v_shift); | |
179 | ||
180 | scaler->scaleup_h = (target_x >= source_x); | |
181 | scaler->scaleup_v = (target_y >= source_y); | |
182 | ||
183 | scaler->copy = 0; | |
184 | ||
185 | pr_debug("H: ratio: %u, shift: %u. V: ratio: %u, shift: %u.\n", | |
186 | scaler->pre_h_ratio, scaler->h_shift, | |
187 | scaler->pre_v_ratio, scaler->v_shift); | |
188 | ||
189 | pr_debug("Source: %dx%d, Target: %dx%d, scaleup_h/v: %d/%d\n", | |
190 | source_x, source_y, target_x, target_y, | |
191 | scaler->scaleup_h, scaler->scaleup_v); | |
192 | ||
193 | return 0; | |
194 | } | |
195 | ||
196 | static int camif_register_sensor(struct camif_dev *camif) | |
197 | { | |
198 | struct s3c_camif_sensor_info *sensor = &camif->pdata.sensor; | |
199 | struct v4l2_device *v4l2_dev = &camif->v4l2_dev; | |
200 | struct i2c_adapter *adapter; | |
201 | struct v4l2_subdev_format format; | |
202 | struct v4l2_subdev *sd; | |
203 | int ret; | |
204 | ||
205 | camif->sensor.sd = NULL; | |
206 | ||
207 | if (sensor->i2c_board_info.addr == 0) | |
208 | return -EINVAL; | |
209 | ||
210 | adapter = i2c_get_adapter(sensor->i2c_bus_num); | |
211 | if (adapter == NULL) { | |
212 | v4l2_warn(v4l2_dev, "failed to get I2C adapter %d\n", | |
213 | sensor->i2c_bus_num); | |
214 | return -EPROBE_DEFER; | |
215 | } | |
216 | ||
217 | sd = v4l2_i2c_new_subdev_board(v4l2_dev, adapter, | |
218 | &sensor->i2c_board_info, NULL); | |
219 | if (sd == NULL) { | |
220 | i2c_put_adapter(adapter); | |
221 | v4l2_warn(v4l2_dev, "failed to acquire subdev %s\n", | |
222 | sensor->i2c_board_info.type); | |
223 | return -EPROBE_DEFER; | |
224 | } | |
225 | camif->sensor.sd = sd; | |
226 | ||
227 | v4l2_info(v4l2_dev, "registered sensor subdevice %s\n", sd->name); | |
228 | ||
229 | /* Get initial pixel format and set it at the camif sink pad */ | |
230 | format.pad = 0; | |
231 | format.which = V4L2_SUBDEV_FORMAT_ACTIVE; | |
232 | ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &format); | |
233 | ||
234 | if (ret < 0) | |
235 | return 0; | |
236 | ||
237 | format.pad = CAMIF_SD_PAD_SINK; | |
238 | v4l2_subdev_call(&camif->subdev, pad, set_fmt, NULL, &format); | |
239 | ||
240 | v4l2_info(sd, "Initial format from sensor: %dx%d, %#x\n", | |
241 | format.format.width, format.format.height, | |
242 | format.format.code); | |
243 | return 0; | |
244 | } | |
245 | ||
246 | static void camif_unregister_sensor(struct camif_dev *camif) | |
247 | { | |
248 | struct v4l2_subdev *sd = camif->sensor.sd; | |
249 | struct i2c_client *client = sd ? v4l2_get_subdevdata(sd) : NULL; | |
250 | struct i2c_adapter *adapter; | |
251 | ||
252 | if (client == NULL) | |
253 | return; | |
254 | ||
255 | adapter = client->adapter; | |
256 | v4l2_device_unregister_subdev(sd); | |
257 | camif->sensor.sd = NULL; | |
258 | i2c_unregister_device(client); | |
332b295d | 259 | i2c_put_adapter(adapter); |
babde1c2 SN |
260 | } |
261 | ||
262 | static int camif_create_media_links(struct camif_dev *camif) | |
263 | { | |
264 | int i, ret; | |
265 | ||
8df00a15 | 266 | ret = media_create_pad_link(&camif->sensor.sd->entity, 0, |
babde1c2 SN |
267 | &camif->subdev.entity, CAMIF_SD_PAD_SINK, |
268 | MEDIA_LNK_FL_IMMUTABLE | | |
269 | MEDIA_LNK_FL_ENABLED); | |
270 | if (ret) | |
271 | return ret; | |
272 | ||
273 | for (i = 1; i < CAMIF_SD_PADS_NUM && !ret; i++) { | |
8df00a15 | 274 | ret = media_create_pad_link(&camif->subdev.entity, i, |
babde1c2 SN |
275 | &camif->vp[i - 1].vdev.entity, 0, |
276 | MEDIA_LNK_FL_IMMUTABLE | | |
277 | MEDIA_LNK_FL_ENABLED); | |
278 | } | |
279 | ||
280 | return ret; | |
281 | } | |
282 | ||
283 | static int camif_register_video_nodes(struct camif_dev *camif) | |
284 | { | |
285 | int ret = s3c_camif_register_video_node(camif, VP_CODEC); | |
286 | if (ret < 0) | |
287 | return ret; | |
288 | ||
289 | return s3c_camif_register_video_node(camif, VP_PREVIEW); | |
290 | } | |
291 | ||
292 | static void camif_unregister_video_nodes(struct camif_dev *camif) | |
293 | { | |
294 | s3c_camif_unregister_video_node(camif, VP_CODEC); | |
295 | s3c_camif_unregister_video_node(camif, VP_PREVIEW); | |
296 | } | |
297 | ||
298 | static void camif_unregister_media_entities(struct camif_dev *camif) | |
299 | { | |
300 | camif_unregister_video_nodes(camif); | |
301 | camif_unregister_sensor(camif); | |
302 | s3c_camif_unregister_subdev(camif); | |
303 | } | |
304 | ||
305 | /* | |
306 | * Media device | |
307 | */ | |
9832e155 | 308 | static int camif_media_dev_init(struct camif_dev *camif) |
babde1c2 SN |
309 | { |
310 | struct media_device *md = &camif->media_dev; | |
311 | struct v4l2_device *v4l2_dev = &camif->v4l2_dev; | |
312 | unsigned int ip_rev = camif->variant->ip_revision; | |
313 | int ret; | |
314 | ||
315 | memset(md, 0, sizeof(*md)); | |
316 | snprintf(md->model, sizeof(md->model), "SAMSUNG S3C%s CAMIF", | |
317 | ip_rev == S3C6410_CAMIF_IP_REV ? "6410" : "244X"); | |
318 | strlcpy(md->bus_info, "platform", sizeof(md->bus_info)); | |
319 | md->hw_revision = ip_rev; | |
320 | md->driver_version = KERNEL_VERSION(1, 0, 0); | |
321 | ||
322 | md->dev = camif->dev; | |
323 | ||
324 | strlcpy(v4l2_dev->name, "s3c-camif", sizeof(v4l2_dev->name)); | |
325 | v4l2_dev->mdev = md; | |
326 | ||
2e7508e4 MCC |
327 | media_device_init(md); |
328 | ||
babde1c2 SN |
329 | ret = v4l2_device_register(camif->dev, v4l2_dev); |
330 | if (ret < 0) | |
331 | return ret; | |
332 | ||
babde1c2 SN |
333 | return ret; |
334 | } | |
335 | ||
336 | static void camif_clk_put(struct camif_dev *camif) | |
337 | { | |
338 | int i; | |
339 | ||
340 | for (i = 0; i < CLK_MAX_NUM; i++) { | |
d46a5a68 | 341 | if (IS_ERR(camif->clock[i])) |
babde1c2 SN |
342 | continue; |
343 | clk_unprepare(camif->clock[i]); | |
344 | clk_put(camif->clock[i]); | |
d46a5a68 | 345 | camif->clock[i] = ERR_PTR(-EINVAL); |
babde1c2 SN |
346 | } |
347 | } | |
348 | ||
349 | static int camif_clk_get(struct camif_dev *camif) | |
350 | { | |
351 | int ret, i; | |
352 | ||
d46a5a68 SK |
353 | for (i = 1; i < CLK_MAX_NUM; i++) |
354 | camif->clock[i] = ERR_PTR(-EINVAL); | |
355 | ||
babde1c2 SN |
356 | for (i = 0; i < CLK_MAX_NUM; i++) { |
357 | camif->clock[i] = clk_get(camif->dev, camif_clocks[i]); | |
358 | if (IS_ERR(camif->clock[i])) { | |
359 | ret = PTR_ERR(camif->clock[i]); | |
360 | goto err; | |
361 | } | |
362 | ret = clk_prepare(camif->clock[i]); | |
363 | if (ret < 0) { | |
364 | clk_put(camif->clock[i]); | |
365 | camif->clock[i] = NULL; | |
366 | goto err; | |
367 | } | |
368 | } | |
369 | return 0; | |
370 | err: | |
371 | camif_clk_put(camif); | |
372 | dev_err(camif->dev, "failed to get clock: %s\n", | |
373 | camif_clocks[i]); | |
374 | return ret; | |
375 | } | |
376 | ||
377 | /* | |
378 | * The CAMIF device has two relatively independent data processing paths | |
379 | * that can source data from memory or the common camera input frontend. | |
380 | * Register interrupts for each data processing path (camif_vp). | |
381 | */ | |
382 | static int camif_request_irqs(struct platform_device *pdev, | |
383 | struct camif_dev *camif) | |
384 | { | |
385 | int irq, ret, i; | |
386 | ||
387 | for (i = 0; i < CAMIF_VP_NUM; i++) { | |
388 | struct camif_vp *vp = &camif->vp[i]; | |
389 | ||
390 | init_waitqueue_head(&vp->irq_queue); | |
391 | ||
392 | irq = platform_get_irq(pdev, i); | |
393 | if (irq <= 0) { | |
394 | dev_err(&pdev->dev, "failed to get IRQ %d\n", i); | |
395 | return -ENXIO; | |
396 | } | |
397 | ||
398 | ret = devm_request_irq(&pdev->dev, irq, s3c_camif_irq_handler, | |
399 | 0, dev_name(&pdev->dev), vp); | |
400 | if (ret < 0) { | |
401 | dev_err(&pdev->dev, "failed to install IRQ: %d\n", ret); | |
402 | break; | |
403 | } | |
404 | } | |
405 | ||
406 | return ret; | |
407 | } | |
408 | ||
409 | static int s3c_camif_probe(struct platform_device *pdev) | |
410 | { | |
411 | struct device *dev = &pdev->dev; | |
412 | struct s3c_camif_plat_data *pdata = dev->platform_data; | |
413 | struct s3c_camif_drvdata *drvdata; | |
414 | struct camif_dev *camif; | |
415 | struct resource *mres; | |
416 | int ret = 0; | |
417 | ||
418 | camif = devm_kzalloc(dev, sizeof(*camif), GFP_KERNEL); | |
419 | if (!camif) | |
420 | return -ENOMEM; | |
421 | ||
422 | spin_lock_init(&camif->slock); | |
423 | mutex_init(&camif->lock); | |
424 | ||
425 | camif->dev = dev; | |
426 | ||
427 | if (!pdata || !pdata->gpio_get || !pdata->gpio_put) { | |
428 | dev_err(dev, "wrong platform data\n"); | |
429 | return -EINVAL; | |
430 | } | |
431 | ||
432 | camif->pdata = *pdata; | |
433 | drvdata = (void *)platform_get_device_id(pdev)->driver_data; | |
434 | camif->variant = drvdata->variant; | |
435 | ||
436 | mres = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
437 | ||
f23999ec TR |
438 | camif->io_base = devm_ioremap_resource(dev, mres); |
439 | if (IS_ERR(camif->io_base)) | |
440 | return PTR_ERR(camif->io_base); | |
babde1c2 SN |
441 | |
442 | ret = camif_request_irqs(pdev, camif); | |
443 | if (ret < 0) | |
444 | return ret; | |
445 | ||
446 | ret = pdata->gpio_get(); | |
447 | if (ret < 0) | |
448 | return ret; | |
449 | ||
450 | ret = s3c_camif_create_subdev(camif); | |
451 | if (ret < 0) | |
452 | goto err_sd; | |
453 | ||
454 | ret = camif_clk_get(camif); | |
455 | if (ret < 0) | |
456 | goto err_clk; | |
457 | ||
458 | platform_set_drvdata(pdev, camif); | |
459 | clk_set_rate(camif->clock[CLK_CAM], | |
460 | camif->pdata.sensor.clock_frequency); | |
461 | ||
462 | dev_info(dev, "sensor clock frequency: %lu\n", | |
463 | clk_get_rate(camif->clock[CLK_CAM])); | |
464 | /* | |
465 | * Set initial pixel format, resolution and crop rectangle. | |
466 | * Must be done before a sensor subdev is registered as some | |
467 | * settings are overrode with values from sensor subdev. | |
468 | */ | |
469 | s3c_camif_set_defaults(camif); | |
470 | ||
471 | pm_runtime_enable(dev); | |
472 | ||
473 | ret = pm_runtime_get_sync(dev); | |
474 | if (ret < 0) | |
475 | goto err_pm; | |
476 | ||
477 | /* Initialize contiguous memory allocator */ | |
478 | camif->alloc_ctx = vb2_dma_contig_init_ctx(dev); | |
479 | if (IS_ERR(camif->alloc_ctx)) { | |
480 | ret = PTR_ERR(camif->alloc_ctx); | |
481 | goto err_alloc; | |
482 | } | |
483 | ||
9832e155 | 484 | ret = camif_media_dev_init(camif); |
babde1c2 SN |
485 | if (ret < 0) |
486 | goto err_mdev; | |
487 | ||
488 | ret = camif_register_sensor(camif); | |
489 | if (ret < 0) | |
490 | goto err_sens; | |
491 | ||
492 | ret = v4l2_device_register_subdev(&camif->v4l2_dev, &camif->subdev); | |
493 | if (ret < 0) | |
494 | goto err_sens; | |
495 | ||
babde1c2 SN |
496 | ret = v4l2_device_register_subdev_nodes(&camif->v4l2_dev); |
497 | if (ret < 0) | |
9b15dfe0 | 498 | goto err_sens; |
babde1c2 SN |
499 | |
500 | ret = camif_register_video_nodes(camif); | |
501 | if (ret < 0) | |
9b15dfe0 | 502 | goto err_sens; |
babde1c2 SN |
503 | |
504 | ret = camif_create_media_links(camif); | |
505 | if (ret < 0) | |
9b15dfe0 | 506 | goto err_sens; |
9832e155 JMC |
507 | |
508 | ret = media_device_register(&camif->media_dev); | |
509 | if (ret < 0) | |
510 | goto err_sens; | |
511 | ||
babde1c2 SN |
512 | pm_runtime_put(dev); |
513 | return 0; | |
514 | ||
babde1c2 SN |
515 | err_sens: |
516 | v4l2_device_unregister(&camif->v4l2_dev); | |
517 | media_device_unregister(&camif->media_dev); | |
9832e155 | 518 | media_device_cleanup(&camif->media_dev); |
babde1c2 SN |
519 | camif_unregister_media_entities(camif); |
520 | err_mdev: | |
521 | vb2_dma_contig_cleanup_ctx(camif->alloc_ctx); | |
522 | err_alloc: | |
523 | pm_runtime_put(dev); | |
524 | pm_runtime_disable(dev); | |
525 | err_pm: | |
526 | camif_clk_put(camif); | |
527 | err_clk: | |
528 | s3c_camif_unregister_subdev(camif); | |
529 | err_sd: | |
530 | pdata->gpio_put(); | |
531 | return ret; | |
532 | } | |
533 | ||
4c62e976 | 534 | static int s3c_camif_remove(struct platform_device *pdev) |
babde1c2 SN |
535 | { |
536 | struct camif_dev *camif = platform_get_drvdata(pdev); | |
537 | struct s3c_camif_plat_data *pdata = &camif->pdata; | |
538 | ||
539 | media_device_unregister(&camif->media_dev); | |
9832e155 | 540 | media_device_cleanup(&camif->media_dev); |
babde1c2 SN |
541 | camif_unregister_media_entities(camif); |
542 | v4l2_device_unregister(&camif->v4l2_dev); | |
543 | ||
544 | pm_runtime_disable(&pdev->dev); | |
545 | camif_clk_put(camif); | |
546 | pdata->gpio_put(); | |
547 | ||
548 | return 0; | |
549 | } | |
550 | ||
551 | static int s3c_camif_runtime_resume(struct device *dev) | |
552 | { | |
553 | struct camif_dev *camif = dev_get_drvdata(dev); | |
554 | ||
555 | clk_enable(camif->clock[CLK_GATE]); | |
556 | /* null op on s3c244x */ | |
557 | clk_enable(camif->clock[CLK_CAM]); | |
558 | return 0; | |
559 | } | |
560 | ||
561 | static int s3c_camif_runtime_suspend(struct device *dev) | |
562 | { | |
563 | struct camif_dev *camif = dev_get_drvdata(dev); | |
564 | ||
565 | /* null op on s3c244x */ | |
566 | clk_disable(camif->clock[CLK_CAM]); | |
567 | ||
568 | clk_disable(camif->clock[CLK_GATE]); | |
569 | return 0; | |
570 | } | |
571 | ||
572 | static const struct s3c_camif_variant s3c244x_camif_variant = { | |
573 | .vp_pix_limits = { | |
574 | [VP_CODEC] = { | |
575 | .max_out_width = 4096, | |
576 | .max_sc_out_width = 2048, | |
577 | .out_width_align = 16, | |
578 | .min_out_width = 16, | |
579 | .max_height = 4096, | |
580 | }, | |
581 | [VP_PREVIEW] = { | |
582 | .max_out_width = 640, | |
583 | .max_sc_out_width = 640, | |
584 | .out_width_align = 16, | |
585 | .min_out_width = 16, | |
586 | .max_height = 480, | |
587 | } | |
588 | }, | |
589 | .pix_limits = { | |
590 | .win_hor_offset_align = 8, | |
591 | }, | |
592 | .ip_revision = S3C244X_CAMIF_IP_REV, | |
593 | }; | |
594 | ||
595 | static struct s3c_camif_drvdata s3c244x_camif_drvdata = { | |
596 | .variant = &s3c244x_camif_variant, | |
597 | .bus_clk_freq = 24000000UL, | |
598 | }; | |
599 | ||
600 | static const struct s3c_camif_variant s3c6410_camif_variant = { | |
601 | .vp_pix_limits = { | |
602 | [VP_CODEC] = { | |
603 | .max_out_width = 4096, | |
604 | .max_sc_out_width = 2048, | |
605 | .out_width_align = 16, | |
606 | .min_out_width = 16, | |
607 | .max_height = 4096, | |
608 | }, | |
609 | [VP_PREVIEW] = { | |
610 | .max_out_width = 4096, | |
611 | .max_sc_out_width = 720, | |
612 | .out_width_align = 16, | |
613 | .min_out_width = 16, | |
614 | .max_height = 4096, | |
615 | } | |
616 | }, | |
617 | .pix_limits = { | |
618 | .win_hor_offset_align = 8, | |
619 | }, | |
620 | .ip_revision = S3C6410_CAMIF_IP_REV, | |
621 | .has_img_effect = 1, | |
622 | .vp_offset = 0x20, | |
623 | }; | |
624 | ||
625 | static struct s3c_camif_drvdata s3c6410_camif_drvdata = { | |
626 | .variant = &s3c6410_camif_variant, | |
627 | .bus_clk_freq = 133000000UL, | |
628 | }; | |
629 | ||
ef00b7ae | 630 | static const struct platform_device_id s3c_camif_driver_ids[] = { |
babde1c2 SN |
631 | { |
632 | .name = "s3c2440-camif", | |
633 | .driver_data = (unsigned long)&s3c244x_camif_drvdata, | |
634 | }, { | |
635 | .name = "s3c6410-camif", | |
636 | .driver_data = (unsigned long)&s3c6410_camif_drvdata, | |
637 | }, | |
638 | { /* sentinel */ }, | |
639 | }; | |
640 | MODULE_DEVICE_TABLE(platform, s3c_camif_driver_ids); | |
641 | ||
642 | static const struct dev_pm_ops s3c_camif_pm_ops = { | |
643 | .runtime_suspend = s3c_camif_runtime_suspend, | |
644 | .runtime_resume = s3c_camif_runtime_resume, | |
645 | }; | |
646 | ||
647 | static struct platform_driver s3c_camif_driver = { | |
648 | .probe = s3c_camif_probe, | |
4c62e976 | 649 | .remove = s3c_camif_remove, |
babde1c2 SN |
650 | .id_table = s3c_camif_driver_ids, |
651 | .driver = { | |
652 | .name = S3C_CAMIF_DRIVER_NAME, | |
babde1c2 SN |
653 | .pm = &s3c_camif_pm_ops, |
654 | } | |
655 | }; | |
656 | ||
657 | module_platform_driver(s3c_camif_driver); | |
658 | ||
659 | MODULE_AUTHOR("Sylwester Nawrocki <sylvester.nawrocki@gmail.com>"); | |
660 | MODULE_AUTHOR("Tomasz Figa <tomasz.figa@gmail.com>"); | |
661 | MODULE_DESCRIPTION("S3C24XX/S3C64XX SoC camera interface driver"); | |
662 | MODULE_LICENSE("GPL"); |