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Guennadi Liakhovetskie55222e2008-04-22 14:42:03 -03001/*
2 * camera image capture (abstract) bus driver header
3 *
4 * Copyright (C) 2006, Sascha Hauer, Pengutronix
5 * Copyright (C) 2008, Guennadi Liakhovetski <kernel@pengutronix.de>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12#ifndef SOC_CAMERA_H
13#define SOC_CAMERA_H
14
Guennadi Liakhovetskid839fe12011-07-28 18:42:57 -030015#include <linux/bitops.h>
Guennadi Liakhovetski52d268a2010-07-26 11:37:13 -030016#include <linux/device.h>
Guennadi Liakhovetski1c3bb742008-12-18 12:28:54 -030017#include <linux/mutex.h>
18#include <linux/pm.h>
Guennadi Liakhovetskie55222e2008-04-22 14:42:03 -030019#include <linux/videodev2.h>
Paulius Zaleckas092d3922008-07-11 20:50:31 -030020#include <media/videobuf-core.h>
Junghak Sungc1399902015-09-22 10:30:29 -030021#include <media/videobuf2-v4l2.h>
Guennadi Liakhovetskie09da112012-12-26 12:44:11 -030022#include <media/v4l2-async.h>
Hans Verkuilee02da62011-09-06 12:36:39 -030023#include <media/v4l2-ctrls.h>
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -030024#include <media/v4l2-device.h>
Guennadi Liakhovetskie55222e2008-04-22 14:42:03 -030025
Guennadi Liakhovetski57bee292010-08-17 14:29:51 -030026struct file;
Guennadi Liakhovetski25a34812012-12-21 08:11:48 -030027struct soc_camera_desc;
Guennadi Liakhovetskie09da112012-12-26 12:44:11 -030028struct soc_camera_async_client;
Guennadi Liakhovetski57bee292010-08-17 14:29:51 -030029
Guennadi Liakhovetskie55222e2008-04-22 14:42:03 -030030struct soc_camera_device {
Guennadi Liakhovetskid33b2902011-07-01 11:31:35 -030031 struct list_head list; /* list of all registered devices */
Guennadi Liakhovetski25a34812012-12-21 08:11:48 -030032 struct soc_camera_desc *sdesc;
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -030033 struct device *pdev; /* Platform device */
Guennadi Liakhovetski7dfff952011-07-15 20:03:38 -030034 struct device *parent; /* Camera host device */
35 struct device *control; /* E.g., the i2c client */
Guennadi Liakhovetski6a6c8782009-08-25 11:50:46 -030036 s32 user_width;
37 s32 user_height;
Sergio Aguirre0e4c1802011-03-07 21:49:48 -030038 u32 bytesperline; /* for padding, zero if unused */
39 u32 sizeimage;
Guennadi Liakhovetski760697b2009-12-11 11:46:49 -030040 enum v4l2_colorspace colorspace;
Guennadi Liakhovetskie55222e2008-04-22 14:42:03 -030041 unsigned char iface; /* Host number */
42 unsigned char devnum; /* Device number per host */
Guennadi Liakhovetskia9bef512008-12-18 11:34:20 -030043 struct soc_camera_sense *sense; /* See comment in struct definition */
Guennadi Liakhovetskie55222e2008-04-22 14:42:03 -030044 struct video_device *vdev;
Hans Verkuilee02da62011-09-06 12:36:39 -030045 struct v4l2_ctrl_handler ctrl_handler;
Guennadi Liakhovetski760697b2009-12-11 11:46:49 -030046 const struct soc_camera_format_xlate *current_fmt;
Guennadi Liakhovetskic2786ad2008-12-01 09:45:27 -030047 struct soc_camera_format_xlate *user_formats;
48 int num_user_formats;
Guennadi Liakhovetski025c18a2009-03-13 06:08:20 -030049 enum v4l2_field field; /* Preserve field over close() */
Guennadi Liakhovetski1c3bb742008-12-18 12:28:54 -030050 void *host_priv; /* Per-device host private data */
Guennadi Liakhovetskidd669e92012-12-24 09:31:33 -030051 /* soc_camera.c private count. Only accessed with .host_lock held */
Guennadi Liakhovetski9dc4e482008-04-22 14:45:32 -030052 int use_count;
Guennadi Liakhovetski57bee292010-08-17 14:29:51 -030053 struct file *streamer; /* stream owner */
Guennadi Liakhovetski9aea4702012-12-21 13:01:55 -030054 struct v4l2_clk *clk;
Guennadi Liakhovetskie09da112012-12-26 12:44:11 -030055 /* Asynchronous subdevice management */
56 struct soc_camera_async_client *sasc;
57 /* video buffer queue */
Guennadi Liakhovetski592c2ab2011-01-29 12:44:51 -030058 union {
59 struct videobuf_queue vb_vidq;
60 struct vb2_queue vb2_vidq;
61 };
Guennadi Liakhovetskie55222e2008-04-22 14:42:03 -030062};
63
Laurent Pinchart914f05c2012-03-21 08:03:28 -030064/* Host supports programmable stride */
65#define SOCAM_HOST_CAP_STRIDE (1 << 0)
66
Guennadi Liakhovetskie09da112012-12-26 12:44:11 -030067enum soc_camera_subdev_role {
68 SOCAM_SUBDEV_DATA_SOURCE = 1,
69 SOCAM_SUBDEV_DATA_SINK,
70 SOCAM_SUBDEV_DATA_PROCESSOR,
71};
72
73struct soc_camera_async_subdev {
74 struct v4l2_async_subdev asd;
75 enum soc_camera_subdev_role role;
76};
77
Guennadi Liakhovetskie55222e2008-04-22 14:42:03 -030078struct soc_camera_host {
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -030079 struct v4l2_device v4l2_dev;
Guennadi Liakhovetskie55222e2008-04-22 14:42:03 -030080 struct list_head list;
Guennadi Liakhovetskie09da112012-12-26 12:44:11 -030081 struct mutex host_lock; /* Main synchronisation lock */
82 struct mutex clk_lock; /* Protect pipeline modifications */
Guennadi Liakhovetski2f9a0c82012-04-18 06:43:09 -030083 unsigned char nr; /* Host number */
Laurent Pinchart914f05c2012-03-21 08:03:28 -030084 u32 capabilities;
Guennadi Liakhovetskif7f6ce22013-04-04 08:21:12 -030085 struct soc_camera_device *icd; /* Currently attached client */
Guennadi Liakhovetskie55222e2008-04-22 14:42:03 -030086 void *priv;
Kay Sieversaf128a12008-10-30 00:51:46 -030087 const char *drv_name;
Guennadi Liakhovetskib8d99042008-04-04 13:41:25 -030088 struct soc_camera_host_ops *ops;
Guennadi Liakhovetskie09da112012-12-26 12:44:11 -030089 struct v4l2_async_subdev **asd; /* Flat array, arranged in groups */
Guennadi Liakhovetskif687f322013-06-24 05:19:19 -030090 unsigned int *asd_sizes; /* 0-terminated array of asd group sizes */
Guennadi Liakhovetskib8d99042008-04-04 13:41:25 -030091};
92
93struct soc_camera_host_ops {
94 struct module *owner;
Guennadi Liakhovetskie55222e2008-04-22 14:42:03 -030095 int (*add)(struct soc_camera_device *);
96 void (*remove)(struct soc_camera_device *);
Guennadi Liakhovetskieb569cf92013-04-04 08:51:36 -030097 int (*clock_start)(struct soc_camera_host *);
98 void (*clock_stop)(struct soc_camera_host *);
Guennadi Liakhovetskifa489842009-08-25 11:46:43 -030099 /*
100 * .get_formats() is called for each client device format, but
101 * .put_formats() is only called once. Further, if any of the calls to
102 * .get_formats() fail, .put_formats() will not be called at all, the
103 * failing .get_formats() must then clean up internally.
104 */
Hans Verkuil3805f202010-05-08 17:55:00 -0300105 int (*get_formats)(struct soc_camera_device *, unsigned int,
Guennadi Liakhovetskic2786ad2008-12-01 09:45:27 -0300106 struct soc_camera_format_xlate *);
Guennadi Liakhovetskifa489842009-08-25 11:46:43 -0300107 void (*put_formats)(struct soc_camera_device *);
Guennadi Liakhovetski3bfb4102012-06-22 13:40:08 -0300108 int (*get_selection)(struct soc_camera_device *, struct v4l2_selection *);
109 int (*set_selection)(struct soc_camera_device *, struct v4l2_selection *);
Guennadi Liakhovetskiaee5c2f2011-03-28 13:28:28 -0300110 /*
Hans Verkuil10d5509c2015-12-14 08:25:32 -0200111 * The difference to .set_selection() is, that .set_liveselection is not allowed
Guennadi Liakhovetskiaee5c2f2011-03-28 13:28:28 -0300112 * to change the output sizes
113 */
Hans Verkuil10d5509c2015-12-14 08:25:32 -0200114 int (*set_liveselection)(struct soc_camera_device *, struct v4l2_selection *);
Guennadi Liakhovetski09e231b2009-03-13 06:08:20 -0300115 int (*set_fmt)(struct soc_camera_device *, struct v4l2_format *);
Guennadi Liakhovetskid8fac212008-12-01 09:45:21 -0300116 int (*try_fmt)(struct soc_camera_device *, struct v4l2_format *);
Magnus Damma034d1b2008-07-11 20:59:34 -0300117 void (*init_videobuf)(struct videobuf_queue *,
Paulius Zaleckas092d3922008-07-11 20:50:31 -0300118 struct soc_camera_device *);
Guennadi Liakhovetski592c2ab2011-01-29 12:44:51 -0300119 int (*init_videobuf2)(struct vb2_queue *,
120 struct soc_camera_device *);
Guennadi Liakhovetski57bee292010-08-17 14:29:51 -0300121 int (*reqbufs)(struct soc_camera_device *, struct v4l2_requestbuffers *);
Guennadi Liakhovetskie55222e2008-04-22 14:42:03 -0300122 int (*querycap)(struct soc_camera_host *, struct v4l2_capability *);
Guennadi Liakhovetski8843d112011-09-21 17:52:51 -0300123 int (*set_bus_param)(struct soc_camera_device *);
Guennadi Liakhovetskic9f6ef62010-02-09 18:00:30 +0100124 int (*get_parm)(struct soc_camera_device *, struct v4l2_streamparm *);
125 int (*set_parm)(struct soc_camera_device *, struct v4l2_streamparm *);
Guennadi Liakhovetskiad3537b2012-05-08 13:00:51 -0300126 int (*enum_framesizes)(struct soc_camera_device *, struct v4l2_frmsizeenum *);
Guennadi Liakhovetskie55222e2008-04-22 14:42:03 -0300127 unsigned int (*poll)(struct file *, poll_table *);
128};
129
Guennadi Liakhovetskibd73b362008-12-23 05:54:45 -0300130#define SOCAM_SENSOR_INVERT_PCLK (1 << 0)
131#define SOCAM_SENSOR_INVERT_MCLK (1 << 1)
132#define SOCAM_SENSOR_INVERT_HSYNC (1 << 2)
133#define SOCAM_SENSOR_INVERT_VSYNC (1 << 3)
134#define SOCAM_SENSOR_INVERT_DATA (1 << 4)
135
Guennadi Liakhovetski0fd327b2009-05-07 13:25:32 -0300136struct i2c_board_info;
Alberto Panizzo96e442c2010-12-02 07:43:37 -0300137struct regulator_bulk_data;
Guennadi Liakhovetski0fd327b2009-05-07 13:25:32 -0300138
Guennadi Liakhovetski25a34812012-12-21 08:11:48 -0300139struct soc_camera_subdev_desc {
Guennadi Liakhovetskibd73b362008-12-23 05:54:45 -0300140 /* Per camera SOCAM_SENSOR_* bus flags */
141 unsigned long flags;
Guennadi Liakhovetski25a34812012-12-21 08:11:48 -0300142
143 /* sensor driver private platform data */
144 void *drv_priv;
Guennadi Liakhovetski3fd7cef2009-12-11 11:15:06 -0300145
Guennadi Liakhovetski40f07532013-10-21 06:28:02 -0300146 /*
147 * Set unbalanced_power to true to deal with legacy drivers, failing to
148 * balance their calls to subdevice's .s_power() method. clock_state is
149 * then used internally by helper functions, it shouldn't be touched by
150 * drivers or the platform code.
151 */
152 bool unbalanced_power;
153 unsigned long clock_state;
154
Guennadi Liakhovetski25a34812012-12-21 08:11:48 -0300155 /* Optional callbacks to power on or off and reset the sensor */
156 int (*power)(struct device *, int);
157 int (*reset)(struct device *);
158
159 /*
160 * some platforms may support different data widths than the sensors
161 * native ones due to different data line routing. Let the board code
162 * overwrite the width flags.
163 */
164 int (*set_bus_param)(struct soc_camera_subdev_desc *, unsigned long flags);
165 unsigned long (*query_bus_param)(struct soc_camera_subdev_desc *);
166 void (*free_bus)(struct soc_camera_subdev_desc *);
Guennadi Liakhovetskid3f884a2013-04-18 18:35:28 -0300167
168 /* Optional regulators that have to be managed on power on/off events */
169 struct v4l2_subdev_platform_data sd_pdata;
Guennadi Liakhovetski25a34812012-12-21 08:11:48 -0300170};
171
172struct soc_camera_host_desc {
173 /* Camera bus id, used to match a camera and a bus */
174 int bus_id;
175 int i2c_adapter_id;
176 struct i2c_board_info *board_info;
177 const char *module_name;
178
Guennadi Liakhovetskic41deba2009-08-25 11:06:21 -0300179 /*
Guennadi Liakhovetskid33b2902011-07-01 11:31:35 -0300180 * For non-I2C devices platform has to provide methods to add a device
181 * to the system and to remove it
Guennadi Liakhovetskic41deba2009-08-25 11:06:21 -0300182 */
Guennadi Liakhovetski7dfff952011-07-15 20:03:38 -0300183 int (*add_device)(struct soc_camera_device *);
184 void (*del_device)(struct soc_camera_device *);
Guennadi Liakhovetski25a34812012-12-21 08:11:48 -0300185};
186
187/*
Guennadi Liakhovetskie09da112012-12-26 12:44:11 -0300188 * Platform data for "soc-camera-pdrv"
Guennadi Liakhovetski25a34812012-12-21 08:11:48 -0300189 * This MUST be kept binary-identical to struct soc_camera_link below, until
190 * it is completely replaced by this one, after which we can split it into its
191 * two components.
192 */
193struct soc_camera_desc {
194 struct soc_camera_subdev_desc subdev_desc;
195 struct soc_camera_host_desc host_desc;
196};
197
198/* Prepare to replace this struct: don't change its layout any more! */
199struct soc_camera_link {
200 /*
201 * Subdevice part - keep at top and compatible to
202 * struct soc_camera_subdev_desc
203 */
204
205 /* Per camera SOCAM_SENSOR_* bus flags */
206 unsigned long flags;
207
208 void *priv;
209
Guennadi Liakhovetski40f07532013-10-21 06:28:02 -0300210 /* Set by platforms to handle misbehaving drivers */
211 bool unbalanced_power;
212 /* Used by soc-camera helper functions */
213 unsigned long clock_state;
214
Stefan Herbrechtsmeier81034662008-08-14 12:04:11 -0300215 /* Optional callbacks to power on or off and reset the sensor */
216 int (*power)(struct device *, int);
217 int (*reset)(struct device *);
Sascha Hauer28f59332009-03-13 06:08:20 -0300218 /*
219 * some platforms may support different data widths than the sensors
220 * native ones due to different data line routing. Let the board code
221 * overwrite the width flags.
222 */
223 int (*set_bus_param)(struct soc_camera_link *, unsigned long flags);
224 unsigned long (*query_bus_param)(struct soc_camera_link *);
Guennadi Liakhovetski594bb462009-04-24 12:53:51 -0300225 void (*free_bus)(struct soc_camera_link *);
Guennadi Liakhovetski25a34812012-12-21 08:11:48 -0300226
Guennadi Liakhovetskid3f884a2013-04-18 18:35:28 -0300227 /* Optional regulators that have to be managed on power on/off events */
228 struct regulator_bulk_data *regulators;
229 int num_regulators;
230
231 void *host_priv;
232
Guennadi Liakhovetski25a34812012-12-21 08:11:48 -0300233 /*
234 * Host part - keep at bottom and compatible to
235 * struct soc_camera_host_desc
236 */
237
238 /* Camera bus id, used to match a camera and a bus */
239 int bus_id;
240 int i2c_adapter_id;
241 struct i2c_board_info *board_info;
242 const char *module_name;
243
244 /*
245 * For non-I2C devices platform has to provide methods to add a device
246 * to the system and to remove it
247 */
248 int (*add_device)(struct soc_camera_device *);
249 void (*del_device)(struct soc_camera_device *);
Guennadi Liakhovetskie55222e2008-04-22 14:42:03 -0300250};
251
Guennadi Liakhovetski96c75392009-08-25 11:53:23 -0300252static inline struct soc_camera_host *to_soc_camera_host(
253 const struct device *dev)
Guennadi Liakhovetskie55222e2008-04-22 14:42:03 -0300254{
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -0300255 struct v4l2_device *v4l2_dev = dev_get_drvdata(dev);
256
257 return container_of(v4l2_dev, struct soc_camera_host, v4l2_dev);
Guennadi Liakhovetskie55222e2008-04-22 14:42:03 -0300258}
259
Guennadi Liakhovetski25a34812012-12-21 08:11:48 -0300260static inline struct soc_camera_desc *to_soc_camera_desc(
Guennadi Liakhovetski96c75392009-08-25 11:53:23 -0300261 const struct soc_camera_device *icd)
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -0300262{
Guennadi Liakhovetski25a34812012-12-21 08:11:48 -0300263 return icd->sdesc;
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -0300264}
Guennadi Liakhovetskie55222e2008-04-22 14:42:03 -0300265
Guennadi Liakhovetski96c75392009-08-25 11:53:23 -0300266static inline struct device *to_soc_camera_control(
267 const struct soc_camera_device *icd)
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -0300268{
Guennadi Liakhovetski7dfff952011-07-15 20:03:38 -0300269 return icd->control;
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -0300270}
Guennadi Liakhovetskie55222e2008-04-22 14:42:03 -0300271
Guennadi Liakhovetski96c75392009-08-25 11:53:23 -0300272static inline struct v4l2_subdev *soc_camera_to_subdev(
273 const struct soc_camera_device *icd)
Guennadi Liakhovetskic9c1f1c2009-08-25 11:46:59 -0300274{
275 struct device *control = to_soc_camera_control(icd);
276 return dev_get_drvdata(control);
277}
278
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -0300279int soc_camera_host_register(struct soc_camera_host *ici);
280void soc_camera_host_unregister(struct soc_camera_host *ici);
281
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -0300282const struct soc_camera_format_xlate *soc_camera_xlate_by_fourcc(
Guennadi Liakhovetskic2786ad2008-12-01 09:45:27 -0300283 struct soc_camera_device *icd, unsigned int fourcc);
Guennadi Liakhovetski25c4d742008-12-01 09:44:59 -0300284
Guennadi Liakhovetskic2786ad2008-12-01 09:45:27 -0300285/**
286 * struct soc_camera_format_xlate - match between host and sensor formats
Guennadi Liakhovetski760697b2009-12-11 11:46:49 -0300287 * @code: code of a sensor provided format
288 * @host_fmt: host format after host translation from code
Guennadi Liakhovetskic2786ad2008-12-01 09:45:27 -0300289 *
290 * Host and sensor translation structure. Used in table of host and sensor
291 * formats matchings in soc_camera_device. A host can override the generic list
292 * generation by implementing get_formats(), and use it for format checks and
293 * format setup.
294 */
295struct soc_camera_format_xlate {
Boris BREZILLON27ffaeb2014-11-10 14:28:31 -0300296 u32 code;
Guennadi Liakhovetski760697b2009-12-11 11:46:49 -0300297 const struct soc_mbus_pixelfmt *host_fmt;
Guennadi Liakhovetskic2786ad2008-12-01 09:45:27 -0300298};
299
Guennadi Liakhovetskia9bef512008-12-18 11:34:20 -0300300#define SOCAM_SENSE_PCLK_CHANGED (1 << 0)
301
302/**
303 * This struct can be attached to struct soc_camera_device by the host driver
304 * to request sense from the camera, for example, when calling .set_fmt(). The
305 * host then can check which flags are set and verify respective values if any.
306 * For example, if SOCAM_SENSE_PCLK_CHANGED is set, it means, pixclock has
307 * changed during this operation. After completion the host should detach sense.
308 *
309 * @flags ored SOCAM_SENSE_* flags
310 * @master_clock if the host wants to be informed about pixel-clock
311 * change, it better set master_clock.
312 * @pixel_clock_max maximum pixel clock frequency supported by the host,
313 * camera is not allowed to exceed this.
314 * @pixel_clock if the camera driver changed pixel clock during this
315 * operation, it sets SOCAM_SENSE_PCLK_CHANGED, uses
316 * master_clock to calculate the new pixel-clock and
317 * sets this field.
318 */
319struct soc_camera_sense {
320 unsigned long flags;
321 unsigned long master_clock;
322 unsigned long pixel_clock_max;
323 unsigned long pixel_clock;
324};
325
Guennadi Liakhovetskid839fe12011-07-28 18:42:57 -0300326#define SOCAM_DATAWIDTH(x) BIT((x) - 1)
327#define SOCAM_DATAWIDTH_4 SOCAM_DATAWIDTH(4)
328#define SOCAM_DATAWIDTH_8 SOCAM_DATAWIDTH(8)
329#define SOCAM_DATAWIDTH_9 SOCAM_DATAWIDTH(9)
330#define SOCAM_DATAWIDTH_10 SOCAM_DATAWIDTH(10)
Phil Edworthy7b88fc02013-03-18 08:47:59 -0300331#define SOCAM_DATAWIDTH_12 SOCAM_DATAWIDTH(12)
Guennadi Liakhovetskid839fe12011-07-28 18:42:57 -0300332#define SOCAM_DATAWIDTH_15 SOCAM_DATAWIDTH(15)
333#define SOCAM_DATAWIDTH_16 SOCAM_DATAWIDTH(16)
Phil Edworthy7b88fc02013-03-18 08:47:59 -0300334#define SOCAM_DATAWIDTH_18 SOCAM_DATAWIDTH(18)
335#define SOCAM_DATAWIDTH_24 SOCAM_DATAWIDTH(24)
Guennadi Liakhovetskiad5f2e82008-03-07 21:57:18 -0300336
Guennadi Liakhovetski042d8792008-12-19 10:07:49 -0300337#define SOCAM_DATAWIDTH_MASK (SOCAM_DATAWIDTH_4 | SOCAM_DATAWIDTH_8 | \
338 SOCAM_DATAWIDTH_9 | SOCAM_DATAWIDTH_10 | \
Phil Edworthy7b88fc02013-03-18 08:47:59 -0300339 SOCAM_DATAWIDTH_12 | SOCAM_DATAWIDTH_15 | \
340 SOCAM_DATAWIDTH_16 | SOCAM_DATAWIDTH_18 | \
341 SOCAM_DATAWIDTH_24)
Guennadi Liakhovetskiad5f2e82008-03-07 21:57:18 -0300342
Márton Némethe26b3142010-02-24 17:13:29 -0300343static inline void soc_camera_limit_side(int *start, int *length,
344 unsigned int start_min,
Guennadi Liakhovetski6a6c8782009-08-25 11:50:46 -0300345 unsigned int length_min, unsigned int length_max)
346{
347 if (*length < length_min)
348 *length = length_min;
349 else if (*length > length_max)
350 *length = length_max;
351
352 if (*start < start_min)
353 *start = start_min;
354 else if (*start > start_min + length_max - *length)
355 *start = start_min + length_max - *length;
356}
357
Guennadi Liakhovetski25a34812012-12-21 08:11:48 -0300358unsigned long soc_camera_apply_board_flags(struct soc_camera_subdev_desc *ssdd,
Guennadi Liakhovetski32c69fcc2011-07-26 11:38:01 -0300359 const struct v4l2_mbus_config *cfg);
Guennadi Liakhovetskibd73b362008-12-23 05:54:45 -0300360
Guennadi Liakhovetskie09da112012-12-26 12:44:11 -0300361int soc_camera_power_init(struct device *dev, struct soc_camera_subdev_desc *ssdd);
Guennadi Liakhovetski9aea4702012-12-21 13:01:55 -0300362int soc_camera_power_on(struct device *dev, struct soc_camera_subdev_desc *ssdd,
363 struct v4l2_clk *clk);
364int soc_camera_power_off(struct device *dev, struct soc_camera_subdev_desc *ssdd,
365 struct v4l2_clk *clk);
Laurent Pinchart4ec10ba2012-07-20 10:19:50 -0300366
367static inline int soc_camera_set_power(struct device *dev,
Guennadi Liakhovetski9aea4702012-12-21 13:01:55 -0300368 struct soc_camera_subdev_desc *ssdd, struct v4l2_clk *clk, bool on)
Laurent Pinchart4ec10ba2012-07-20 10:19:50 -0300369{
Guennadi Liakhovetski9aea4702012-12-21 13:01:55 -0300370 return on ? soc_camera_power_on(dev, ssdd, clk)
371 : soc_camera_power_off(dev, ssdd, clk);
Laurent Pinchart4ec10ba2012-07-20 10:19:50 -0300372}
373
Mauro Carvalho Chehab4f9fb5e2010-05-18 00:46:09 -0300374/* This is only temporary here - until v4l2-subdev begins to link to video_device */
375#include <linux/i2c.h>
Guennadi Liakhovetski14178aa2011-09-21 15:16:30 -0300376static inline struct video_device *soc_camera_i2c_to_vdev(const struct i2c_client *client)
Mauro Carvalho Chehab4f9fb5e2010-05-18 00:46:09 -0300377{
Guennadi Liakhovetski2f0babb2011-09-09 13:39:20 -0300378 struct v4l2_subdev *sd = i2c_get_clientdata(client);
Guennadi Liakhovetski4c0b0362011-12-05 16:01:13 -0300379 struct soc_camera_device *icd = v4l2_get_subdev_hostdata(sd);
Guennadi Liakhovetski14178aa2011-09-21 15:16:30 -0300380 return icd ? icd->vdev : NULL;
Mauro Carvalho Chehab4f9fb5e2010-05-18 00:46:09 -0300381}
382
Guennadi Liakhovetski25a34812012-12-21 08:11:48 -0300383static inline struct soc_camera_subdev_desc *soc_camera_i2c_to_desc(const struct i2c_client *client)
Guennadi Liakhovetski14178aa2011-09-21 15:16:30 -0300384{
Guennadi Liakhovetski2f0babb2011-09-09 13:39:20 -0300385 return client->dev.platform_data;
Guennadi Liakhovetski14178aa2011-09-21 15:16:30 -0300386}
387
Hans Verkuil14381c22013-06-10 09:27:41 -0300388static inline struct v4l2_subdev *soc_camera_vdev_to_subdev(struct video_device *vdev)
Guennadi Liakhovetski14178aa2011-09-21 15:16:30 -0300389{
Hans Verkuil14381c22013-06-10 09:27:41 -0300390 struct soc_camera_device *icd = video_get_drvdata(vdev);
Guennadi Liakhovetski14178aa2011-09-21 15:16:30 -0300391 return soc_camera_to_subdev(icd);
392}
393
Guennadi Liakhovetski14178aa2011-09-21 15:16:30 -0300394static inline struct soc_camera_device *soc_camera_from_vb2q(const struct vb2_queue *vq)
Guennadi Liakhovetski8eb44762011-02-07 18:09:30 -0300395{
396 return container_of(vq, struct soc_camera_device, vb2_vidq);
397}
398
Guennadi Liakhovetski14178aa2011-09-21 15:16:30 -0300399static inline struct soc_camera_device *soc_camera_from_vbq(const struct videobuf_queue *vq)
Guennadi Liakhovetski8eb44762011-02-07 18:09:30 -0300400{
401 return container_of(vq, struct soc_camera_device, vb_vidq);
402}
403
Guennadi Liakhovetski4c0b0362011-12-05 16:01:13 -0300404static inline u32 soc_camera_grp_id(const struct soc_camera_device *icd)
405{
406 return (icd->iface << 8) | (icd->devnum + 1);
407}
408
Guennadi Liakhovetski592c2ab2011-01-29 12:44:51 -0300409void soc_camera_lock(struct vb2_queue *vq);
410void soc_camera_unlock(struct vb2_queue *vq);
411
Guennadi Liakhovetskie55222e2008-04-22 14:42:03 -0300412#endif