1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3 * Header for M-5MOLS 8M Pixel camera sensor with ISP
4 *
5 * Copyright (C) 2011 Samsung Electronics Co., Ltd.
6 * Author: HeungJun Kim <riverful.kim@samsung.com>
7 *
8 * Copyright (C) 2009 Samsung Electronics Co., Ltd.
9 * Author: Dongsoo Nathaniel Kim <dongsoo45.kim@samsung.com>
10 */
11
12 #ifndef M5MOLS_H
13 #define M5MOLS_H
14
15 #include <linux/sizes.h>
16 #include <media/v4l2-subdev.h>
17 #include "m5mols_reg.h"
18
19
20 /* An amount of data transmitted in addition to the value
21 * determined by CAPP_JPEG_SIZE_MAX register.
22 */
23 #define M5MOLS_JPEG_TAGS_SIZE 0x20000
24 #define M5MOLS_MAIN_JPEG_SIZE_MAX (5 * SZ_1M)
25
26 extern int m5mols_debug;
27
28 enum m5mols_restype {
29 M5MOLS_RESTYPE_MONITOR,
30 M5MOLS_RESTYPE_CAPTURE,
31 M5MOLS_RESTYPE_MAX,
32 };
33
34 /**
35 * struct m5mols_resolution - structure for the resolution
36 * @type: resolution type according to the pixel code
37 * @width: width of the resolution
38 * @height: height of the resolution
39 * @reg: resolution preset register value
40 */
41 struct m5mols_resolution {
42 u8 reg;
43 enum m5mols_restype type;
44 u16 width;
45 u16 height;
46 };
47
48 /**
49 * struct m5mols_exif - structure for the EXIF information of M-5MOLS
50 * @exposure_time: exposure time register value
51 * @shutter_speed: speed of the shutter register value
52 * @aperture: aperture register value
53 * @exposure_bias: it calls also EV bias
54 * @iso_speed: ISO register value
55 * @flash: status register value of the flash
56 * @sdr: status register value of the Subject Distance Range
57 * @qval: not written exact meaning in document
58 */
59 struct m5mols_exif {
60 u32 exposure_time;
61 u32 shutter_speed;
62 u32 aperture;
63 u32 brightness;
64 u32 exposure_bias;
65 u16 iso_speed;
66 u16 flash;
67 u16 sdr;
68 u16 qval;
69 };
70
71 /**
72 * struct m5mols_capture - Structure for the capture capability
73 * @exif: EXIF information
74 * @buf_size: internal JPEG frame buffer size, in bytes
75 * @main: size in bytes of the main image
76 * @thumb: size in bytes of the thumb image, if it was accompanied
77 * @total: total size in bytes of the produced image
78 */
79 struct m5mols_capture {
80 struct m5mols_exif exif;
81 unsigned int buf_size;
82 u32 main;
83 u32 thumb;
84 u32 total;
85 };
86
87 /**
88 * struct m5mols_scenemode - structure for the scenemode capability
89 * @metering: metering light register value
90 * @ev_bias: EV bias register value
91 * @wb_mode: mode which means the WhiteBalance is Auto or Manual
92 * @wb_preset: whitebalance preset register value in the Manual mode
93 * @chroma_en: register value whether the Chroma capability is enabled or not
94 * @chroma_lvl: chroma's level register value
95 * @edge_en: register value Whether the Edge capability is enabled or not
96 * @edge_lvl: edge's level register value
97 * @af_range: Auto Focus's range
98 * @fd_mode: Face Detection mode
99 * @mcc: Multi-axis Color Conversion which means emotion color
100 * @light: status of the Light
101 * @flash: status of the Flash
102 * @tone: Tone color which means Contrast
103 * @iso: ISO register value
104 * @capt_mode: Mode of the Image Stabilization while the camera capturing
105 * @wdr: Wide Dynamic Range register value
106 *
107 * The each value according to each scenemode is recommended in the documents.
108 */
109 struct m5mols_scenemode {
110 u8 metering;
111 u8 ev_bias;
112 u8 wb_mode;
113 u8 wb_preset;
114 u8 chroma_en;
115 u8 chroma_lvl;
116 u8 edge_en;
117 u8 edge_lvl;
118 u8 af_range;
119 u8 fd_mode;
120 u8 mcc;
121 u8 light;
122 u8 flash;
123 u8 tone;
124 u8 iso;
125 u8 capt_mode;
126 u8 wdr;
127 };
128
129 /**
130 * struct m5mols_version - firmware version information
131 * @customer: customer information
132 * @project: version of project information according to customer
133 * @fw: firmware revision
134 * @hw: hardware revision
135 * @param: version of the parameter
136 * @awb: Auto WhiteBalance algorithm version
137 * @str: information about manufacturer and packaging vendor
138 * @af: Auto Focus version
139 *
140 * The register offset starts the customer version at 0x0, and it ends
141 * the awb version at 0x09. The customer, project information occupies 1 bytes
142 * each. And also the fw, hw, param, awb each requires 2 bytes. The str is
143 * unique string associated with firmware's version. It includes information
144 * about manufacturer and the vendor of the sensor's packaging. The least
145 * significant 2 bytes of the string indicate packaging manufacturer.
146 */
147 #define VERSION_STRING_SIZE 22
148 struct m5mols_version {
149 u8 customer;
150 u8 project;
151 u16 fw;
152 u16 hw;
153 u16 param;
154 u16 awb;
155 u8 str[VERSION_STRING_SIZE];
156 u8 af;
157 };
158
159 /**
160 * struct m5mols_info - M-5MOLS driver data structure
161 * @pdata: platform data
162 * @sd: v4l-subdev instance
163 * @pad: media pad
164 * @irq_waitq: waitqueue for the capture
165 * @irq_done: set to 1 in the interrupt handler
166 * @handle: control handler
167 * @auto_exposure: auto/manual exposure control
168 * @exposure_bias: exposure compensation control
169 * @exposure: manual exposure control
170 * @metering: exposure metering control
171 * @auto_iso: auto/manual ISO sensitivity control
172 * @iso: manual ISO sensitivity control
173 * @auto_wb: auto white balance control
174 * @lock_3a: 3A lock control
175 * @colorfx: color effect control
176 * @saturation: saturation control
177 * @zoom: zoom control
178 * @wdr: wide dynamic range control
179 * @stabilization: image stabilization control
180 * @jpeg_quality: JPEG compression quality control
181 * @set_power: optional power callback to the board code
182 * @lock: mutex protecting the structure fields below
183 * @ffmt: current fmt according to resolution type
184 * @res_type: current resolution type
185 * @ver: information of the version
186 * @cap: the capture mode attributes
187 * @isp_ready: 1 when the ISP controller has completed booting
188 * @power: current sensor's power status
189 * @ctrl_sync: 1 when the control handler state is restored in H/W
190 * @resolution: register value for current resolution
191 * @mode: register value for current operation mode
192 */
193 struct m5mols_info {
194 const struct m5mols_platform_data *pdata;
195 struct v4l2_subdev sd;
196 struct media_pad pad;
197
198 wait_queue_head_t irq_waitq;
199 atomic_t irq_done;
200
201 struct v4l2_ctrl_handler handle;
202 struct {
203 /* exposure/exposure bias/auto exposure cluster */
204 struct v4l2_ctrl *auto_exposure;
205 struct v4l2_ctrl *exposure_bias;
206 struct v4l2_ctrl *exposure;
207 struct v4l2_ctrl *metering;
208 };
209 struct {
210 /* iso/auto iso cluster */
211 struct v4l2_ctrl *auto_iso;
212 struct v4l2_ctrl *iso;
213 };
214 struct v4l2_ctrl *auto_wb;
215
216 struct v4l2_ctrl *lock_3a;
217 struct v4l2_ctrl *colorfx;
218 struct v4l2_ctrl *saturation;
219 struct v4l2_ctrl *zoom;
220 struct v4l2_ctrl *wdr;
221 struct v4l2_ctrl *stabilization;
222 struct v4l2_ctrl *jpeg_quality;
223
224 int (*set_power)(struct device *dev, int on);
225
226 struct mutex lock;
227
228 struct v4l2_mbus_framefmt ffmt[M5MOLS_RESTYPE_MAX];
229 int res_type;
230
231 struct m5mols_version ver;
232 struct m5mols_capture cap;
233
234 unsigned int isp_ready:1;
235 unsigned int power:1;
236 unsigned int ctrl_sync:1;
237
238 u8 resolution;
239 u8 mode;
240 };
241
242 #define is_available_af(__info) (__info->ver.af)
243 #define is_code(__code, __type) (__code == m5mols_default_ffmt[__type].code)
244 #define is_manufacturer(__info, __manufacturer) \
245 (__info->ver.str[0] == __manufacturer[0] && \
246 __info->ver.str[1] == __manufacturer[1])
247 /*
248 * I2C operation of the M-5MOLS
249 *
250 * The I2C read operation of the M-5MOLS requires 2 messages. The first
251 * message sends the information about the command, command category, and total
252 * message size. The second message is used to retrieve the data specified in
253 * the first message
254 *
255 * 1st message 2nd message
256 * +-------+---+----------+-----+-------+ +------+------+------+------+
257 * | size1 | R | category | cmd | size2 | | d[0] | d[1] | d[2] | d[3] |
258 * +-------+---+----------+-----+-------+ +------+------+------+------+
259 * - size1: message data size(5 in this case)
260 * - size2: desired buffer size of the 2nd message
261 * - d[0..3]: according to size2
262 *
263 * The I2C write operation needs just one message. The message includes
264 * category, command, total size, and desired data.
265 *
266 * 1st message
267 * +-------+---+----------+-----+------+------+------+------+
268 * | size1 | W | category | cmd | d[0] | d[1] | d[2] | d[3] |
269 * +-------+---+----------+-----+------+------+------+------+
270 * - d[0..3]: according to size1
271 */
272 int m5mols_read_u8(struct v4l2_subdev *sd, u32 reg_comb, u8 *val);
273 int m5mols_read_u16(struct v4l2_subdev *sd, u32 reg_comb, u16 *val);
274 int m5mols_read_u32(struct v4l2_subdev *sd, u32 reg_comb, u32 *val);
275 int m5mols_write(struct v4l2_subdev *sd, u32 reg_comb, u32 val);
276
277 int m5mols_busy_wait(struct v4l2_subdev *sd, u32 reg, u32 value, u32 mask,
278 int timeout);
279
280 /* Mask value for busy waiting until M-5MOLS I2C interface is initialized */
281 #define M5MOLS_I2C_RDY_WAIT_FL (1 << 16)
282 /* ISP state transition timeout, in ms */
283 #define M5MOLS_MODE_CHANGE_TIMEOUT 200
284 #define M5MOLS_BUSY_WAIT_DEF_TIMEOUT 250
285
286 /*
287 * Mode operation of the M-5MOLS
288 *
289 * Changing the mode of the M-5MOLS is needed right executing order.
290 * There are three modes(PARAMETER, MONITOR, CAPTURE) which can be changed
291 * by user. There are various categories associated with each mode.
292 *
293 * +============================================================+
294 * | mode | category |
295 * +============================================================+
296 * | FLASH | FLASH(only after Stand-by or Power-on) |
297 * | SYSTEM | SYSTEM(only after sensor arm-booting) |
298 * | PARAMETER | PARAMETER |
299 * | MONITOR | MONITOR(preview), Auto Focus, Face Detection |
300 * | CAPTURE | Single CAPTURE, Preview(recording) |
301 * +============================================================+
302 *
303 * The available executing order between each modes are as follows:
304 * PARAMETER <---> MONITOR <---> CAPTURE
305 */
306 int m5mols_set_mode(struct m5mols_info *info, u8 mode);
307
308 int m5mols_enable_interrupt(struct v4l2_subdev *sd, u8 reg);
309 int m5mols_wait_interrupt(struct v4l2_subdev *sd, u8 condition, u32 timeout);
310 int m5mols_restore_controls(struct m5mols_info *info);
311 int m5mols_start_capture(struct m5mols_info *info);
312 int m5mols_do_scenemode(struct m5mols_info *info, u8 mode);
313 int m5mols_lock_3a(struct m5mols_info *info, bool lock);
314 int m5mols_set_ctrl(struct v4l2_ctrl *ctrl);
315 int m5mols_init_controls(struct v4l2_subdev *sd);
316
317 /* The firmware function */
318 int m5mols_update_fw(struct v4l2_subdev *sd,
319 int (*set_power)(struct m5mols_info *, bool));
320
to_m5mols(struct v4l2_subdev * subdev)321 static inline struct m5mols_info *to_m5mols(struct v4l2_subdev *subdev)
322 {
323 return container_of(subdev, struct m5mols_info, sd);
324 }
325
to_sd(struct v4l2_ctrl * ctrl)326 static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
327 {
328 struct m5mols_info *info = container_of(ctrl->handler,
329 struct m5mols_info, handle);
330 return &info->sd;
331 }
332
m5mols_set_ctrl_mode(struct v4l2_ctrl * ctrl,unsigned int mode)333 static inline void m5mols_set_ctrl_mode(struct v4l2_ctrl *ctrl,
334 unsigned int mode)
335 {
336 ctrl->priv = (void *)(uintptr_t)mode;
337 }
338
m5mols_get_ctrl_mode(struct v4l2_ctrl * ctrl)339 static inline unsigned int m5mols_get_ctrl_mode(struct v4l2_ctrl *ctrl)
340 {
341 return (unsigned int)(uintptr_t)ctrl->priv;
342 }
343
344 #endif /* M5MOLS_H */
345