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bfa8dd3a SN |
1 | /* |
2 | * Driver for Samsung S5K6AAFX SXGA 1/6" 1.3M CMOS Image Sensor | |
3 | * with embedded SoC ISP. | |
4 | * | |
5 | * Copyright (C) 2011, Samsung Electronics Co., Ltd. | |
6 | * Sylwester Nawrocki <s.nawrocki@samsung.com> | |
7 | * | |
8 | * Based on a driver authored by Dongsoo Nathaniel Kim. | |
9 | * Copyright (C) 2009, Dongsoo Nathaniel Kim <dongsoo45.kim@samsung.com> | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; either version 2 of the License, or | |
14 | * (at your option) any later version. | |
15 | */ | |
16 | ||
17 | #include <linux/clk.h> | |
18 | #include <linux/delay.h> | |
19 | #include <linux/gpio.h> | |
20 | #include <linux/i2c.h> | |
21 | #include <linux/media.h> | |
6aec187a | 22 | #include <linux/module.h> |
bfa8dd3a SN |
23 | #include <linux/regulator/consumer.h> |
24 | #include <linux/slab.h> | |
25 | ||
26 | #include <media/media-entity.h> | |
27 | #include <media/v4l2-ctrls.h> | |
28 | #include <media/v4l2-device.h> | |
29 | #include <media/v4l2-subdev.h> | |
30 | #include <media/v4l2-mediabus.h> | |
31 | #include <media/s5k6aa.h> | |
32 | ||
33 | static int debug; | |
34 | module_param(debug, int, 0644); | |
35 | ||
36 | #define DRIVER_NAME "S5K6AA" | |
37 | ||
38 | /* The token to indicate array termination */ | |
39 | #define S5K6AA_TERM 0xffff | |
40 | #define S5K6AA_OUT_WIDTH_DEF 640 | |
41 | #define S5K6AA_OUT_HEIGHT_DEF 480 | |
42 | #define S5K6AA_WIN_WIDTH_MAX 1280 | |
43 | #define S5K6AA_WIN_HEIGHT_MAX 1024 | |
44 | #define S5K6AA_WIN_WIDTH_MIN 8 | |
45 | #define S5K6AA_WIN_HEIGHT_MIN 8 | |
46 | ||
47 | /* | |
48 | * H/W register Interface (0xD0000000 - 0xD0000FFF) | |
49 | */ | |
50 | #define AHB_MSB_ADDR_PTR 0xfcfc | |
51 | #define GEN_REG_OFFSH 0xd000 | |
52 | #define REG_CMDWR_ADDRH 0x0028 | |
53 | #define REG_CMDWR_ADDRL 0x002a | |
54 | #define REG_CMDRD_ADDRH 0x002c | |
55 | #define REG_CMDRD_ADDRL 0x002e | |
56 | #define REG_CMDBUF0_ADDR 0x0f12 | |
57 | #define REG_CMDBUF1_ADDR 0x0f10 | |
58 | ||
59 | /* | |
60 | * Host S/W Register interface (0x70000000 - 0x70002000) | |
61 | * The value of the two most significant address bytes is 0x7000, | |
62 | * (HOST_SWIF_OFFS_H). The register addresses below specify 2 LSBs. | |
63 | */ | |
64 | #define HOST_SWIF_OFFSH 0x7000 | |
65 | ||
66 | /* Initialization parameters */ | |
67 | /* Master clock frequency in KHz */ | |
68 | #define REG_I_INCLK_FREQ_L 0x01b8 | |
69 | #define REG_I_INCLK_FREQ_H 0x01ba | |
70 | #define MIN_MCLK_FREQ_KHZ 6000U | |
71 | #define MAX_MCLK_FREQ_KHZ 27000U | |
72 | #define REG_I_USE_NPVI_CLOCKS 0x01c6 | |
73 | #define REG_I_USE_NMIPI_CLOCKS 0x01c8 | |
74 | ||
75 | /* Clock configurations, n = 0..2. REG_I_* frequency unit is 4 kHz. */ | |
76 | #define REG_I_OPCLK_4KHZ(n) ((n) * 6 + 0x01cc) | |
77 | #define REG_I_MIN_OUTRATE_4KHZ(n) ((n) * 6 + 0x01ce) | |
78 | #define REG_I_MAX_OUTRATE_4KHZ(n) ((n) * 6 + 0x01d0) | |
79 | #define SYS_PLL_OUT_FREQ (48000000 / 4000) | |
80 | #define PCLK_FREQ_MIN (24000000 / 4000) | |
81 | #define PCLK_FREQ_MAX (48000000 / 4000) | |
82 | #define REG_I_INIT_PARAMS_UPDATED 0x01e0 | |
83 | #define REG_I_ERROR_INFO 0x01e2 | |
84 | ||
85 | /* General purpose parameters */ | |
86 | #define REG_USER_BRIGHTNESS 0x01e4 | |
87 | #define REG_USER_CONTRAST 0x01e6 | |
88 | #define REG_USER_SATURATION 0x01e8 | |
89 | #define REG_USER_SHARPBLUR 0x01ea | |
90 | ||
91 | #define REG_G_SPEC_EFFECTS 0x01ee | |
92 | #define REG_G_ENABLE_PREV 0x01f0 | |
93 | #define REG_G_ENABLE_PREV_CHG 0x01f2 | |
94 | #define REG_G_NEW_CFG_SYNC 0x01f8 | |
95 | #define REG_G_PREVZOOM_IN_WIDTH 0x020a | |
96 | #define REG_G_PREVZOOM_IN_HEIGHT 0x020c | |
97 | #define REG_G_PREVZOOM_IN_XOFFS 0x020e | |
98 | #define REG_G_PREVZOOM_IN_YOFFS 0x0210 | |
99 | #define REG_G_INPUTS_CHANGE_REQ 0x021a | |
100 | #define REG_G_ACTIVE_PREV_CFG 0x021c | |
101 | #define REG_G_PREV_CFG_CHG 0x021e | |
102 | #define REG_G_PREV_OPEN_AFTER_CH 0x0220 | |
103 | #define REG_G_PREV_CFG_ERROR 0x0222 | |
104 | ||
105 | /* Preview control section. n = 0...4. */ | |
106 | #define PREG(n, x) ((n) * 0x26 + x) | |
107 | #define REG_P_OUT_WIDTH(n) PREG(n, 0x0242) | |
108 | #define REG_P_OUT_HEIGHT(n) PREG(n, 0x0244) | |
109 | #define REG_P_FMT(n) PREG(n, 0x0246) | |
110 | #define REG_P_MAX_OUT_RATE(n) PREG(n, 0x0248) | |
111 | #define REG_P_MIN_OUT_RATE(n) PREG(n, 0x024a) | |
112 | #define REG_P_PVI_MASK(n) PREG(n, 0x024c) | |
113 | #define REG_P_CLK_INDEX(n) PREG(n, 0x024e) | |
114 | #define REG_P_FR_RATE_TYPE(n) PREG(n, 0x0250) | |
115 | #define FR_RATE_DYNAMIC 0 | |
116 | #define FR_RATE_FIXED 1 | |
117 | #define FR_RATE_FIXED_ACCURATE 2 | |
118 | #define REG_P_FR_RATE_Q_TYPE(n) PREG(n, 0x0252) | |
119 | #define FR_RATE_Q_BEST_FRRATE 1 /* Binning enabled */ | |
120 | #define FR_RATE_Q_BEST_QUALITY 2 /* Binning disabled */ | |
121 | /* Frame period in 0.1 ms units */ | |
122 | #define REG_P_MAX_FR_TIME(n) PREG(n, 0x0254) | |
123 | #define REG_P_MIN_FR_TIME(n) PREG(n, 0x0256) | |
124 | /* Conversion to REG_P_[MAX/MIN]_FR_TIME value; __t: time in us */ | |
125 | #define US_TO_FR_TIME(__t) ((__t) / 100) | |
126 | #define S5K6AA_MIN_FR_TIME 33300 /* us */ | |
127 | #define S5K6AA_MAX_FR_TIME 650000 /* us */ | |
128 | #define S5K6AA_MAX_HIGHRES_FR_TIME 666 /* x100 us */ | |
129 | /* The below 5 registers are for "device correction" values */ | |
130 | #define REG_P_COLORTEMP(n) PREG(n, 0x025e) | |
131 | #define REG_P_PREV_MIRROR(n) PREG(n, 0x0262) | |
132 | ||
133 | /* Extended image property controls */ | |
134 | /* Exposure time in 10 us units */ | |
135 | #define REG_SF_USR_EXPOSURE_L 0x03c6 | |
136 | #define REG_SF_USR_EXPOSURE_H 0x03c8 | |
137 | #define REG_SF_USR_EXPOSURE_CHG 0x03ca | |
138 | #define REG_SF_USR_TOT_GAIN 0x03cc | |
139 | #define REG_SF_USR_TOT_GAIN_CHG 0x03ce | |
140 | #define REG_SF_RGAIN 0x03d0 | |
141 | #define REG_SF_RGAIN_CHG 0x03d2 | |
142 | #define REG_SF_GGAIN 0x03d4 | |
143 | #define REG_SF_GGAIN_CHG 0x03d6 | |
144 | #define REG_SF_BGAIN 0x03d8 | |
145 | #define REG_SF_BGAIN_CHG 0x03da | |
146 | #define REG_SF_FLICKER_QUANT 0x03dc | |
147 | #define REG_SF_FLICKER_QUANT_CHG 0x03de | |
148 | ||
149 | /* Output interface (parallel/MIPI) setup */ | |
150 | #define REG_OIF_EN_MIPI_LANES 0x03fa | |
151 | #define REG_OIF_EN_PACKETS 0x03fc | |
152 | #define REG_OIF_CFG_CHG 0x03fe | |
153 | ||
154 | /* Auto-algorithms enable mask */ | |
155 | #define REG_DBG_AUTOALG_EN 0x0400 | |
156 | #define AALG_ALL_EN_MASK (1 << 0) | |
157 | #define AALG_AE_EN_MASK (1 << 1) | |
158 | #define AALG_DIVLEI_EN_MASK (1 << 2) | |
159 | #define AALG_WB_EN_MASK (1 << 3) | |
160 | #define AALG_FLICKER_EN_MASK (1 << 5) | |
161 | #define AALG_FIT_EN_MASK (1 << 6) | |
162 | #define AALG_WRHW_EN_MASK (1 << 7) | |
163 | ||
164 | /* Firmware revision information */ | |
165 | #define REG_FW_APIVER 0x012e | |
166 | #define S5K6AAFX_FW_APIVER 0x0001 | |
167 | #define REG_FW_REVISION 0x0130 | |
168 | ||
169 | /* For now we use only one user configuration register set */ | |
170 | #define S5K6AA_MAX_PRESETS 1 | |
171 | ||
172 | static const char * const s5k6aa_supply_names[] = { | |
173 | "vdd_core", /* Digital core supply 1.5V (1.4V to 1.6V) */ | |
174 | "vdda", /* Analog power supply 2.8V (2.6V to 3.0V) */ | |
175 | "vdd_reg", /* Regulator input power 1.8V (1.7V to 1.9V) | |
176 | or 2.8V (2.6V to 3.0) */ | |
177 | "vddio", /* I/O supply 1.8V (1.65V to 1.95V) | |
178 | or 2.8V (2.5V to 3.1V) */ | |
179 | }; | |
180 | #define S5K6AA_NUM_SUPPLIES ARRAY_SIZE(s5k6aa_supply_names) | |
181 | ||
182 | enum s5k6aa_gpio_id { | |
183 | STBY, | |
184 | RST, | |
185 | GPIO_NUM, | |
186 | }; | |
187 | ||
188 | struct s5k6aa_regval { | |
189 | u16 addr; | |
190 | u16 val; | |
191 | }; | |
192 | ||
193 | struct s5k6aa_pixfmt { | |
194 | enum v4l2_mbus_pixelcode code; | |
195 | u32 colorspace; | |
196 | /* REG_P_FMT(x) register value */ | |
197 | u16 reg_p_fmt; | |
198 | }; | |
199 | ||
200 | struct s5k6aa_preset { | |
201 | /* output pixel format and resolution */ | |
202 | struct v4l2_mbus_framefmt mbus_fmt; | |
203 | u8 clk_id; | |
204 | u8 index; | |
205 | }; | |
206 | ||
207 | struct s5k6aa_ctrls { | |
208 | struct v4l2_ctrl_handler handler; | |
209 | /* Auto / manual white balance cluster */ | |
210 | struct v4l2_ctrl *awb; | |
211 | struct v4l2_ctrl *gain_red; | |
212 | struct v4l2_ctrl *gain_blue; | |
213 | struct v4l2_ctrl *gain_green; | |
214 | /* Mirror cluster */ | |
215 | struct v4l2_ctrl *hflip; | |
216 | struct v4l2_ctrl *vflip; | |
217 | /* Auto exposure / manual exposure and gain cluster */ | |
218 | struct v4l2_ctrl *auto_exp; | |
219 | struct v4l2_ctrl *exposure; | |
220 | struct v4l2_ctrl *gain; | |
221 | }; | |
222 | ||
223 | struct s5k6aa_interval { | |
224 | u16 reg_fr_time; | |
225 | struct v4l2_fract interval; | |
226 | /* Maximum rectangle for the interval */ | |
227 | struct v4l2_frmsize_discrete size; | |
228 | }; | |
229 | ||
230 | struct s5k6aa { | |
231 | struct v4l2_subdev sd; | |
232 | struct media_pad pad; | |
233 | ||
234 | enum v4l2_mbus_type bus_type; | |
235 | u8 mipi_lanes; | |
236 | ||
237 | int (*s_power)(int enable); | |
238 | struct regulator_bulk_data supplies[S5K6AA_NUM_SUPPLIES]; | |
239 | struct s5k6aa_gpio gpio[GPIO_NUM]; | |
240 | ||
241 | /* external master clock frequency */ | |
242 | unsigned long mclk_frequency; | |
243 | /* ISP internal master clock frequency */ | |
244 | u16 clk_fop; | |
245 | /* output pixel clock frequency range */ | |
246 | u16 pclk_fmin; | |
247 | u16 pclk_fmax; | |
248 | ||
249 | unsigned int inv_hflip:1; | |
250 | unsigned int inv_vflip:1; | |
251 | ||
252 | /* protects the struct members below */ | |
253 | struct mutex lock; | |
254 | ||
255 | /* sensor matrix scan window */ | |
256 | struct v4l2_rect ccd_rect; | |
257 | ||
258 | struct s5k6aa_ctrls ctrls; | |
259 | struct s5k6aa_preset presets[S5K6AA_MAX_PRESETS]; | |
260 | struct s5k6aa_preset *preset; | |
261 | const struct s5k6aa_interval *fiv; | |
262 | ||
263 | unsigned int streaming:1; | |
264 | unsigned int apply_cfg:1; | |
265 | unsigned int apply_crop:1; | |
266 | unsigned int power; | |
267 | }; | |
268 | ||
269 | static struct s5k6aa_regval s5k6aa_analog_config[] = { | |
270 | /* Analog settings */ | |
271 | { 0x112a, 0x0000 }, { 0x1132, 0x0000 }, | |
272 | { 0x113e, 0x0000 }, { 0x115c, 0x0000 }, | |
273 | { 0x1164, 0x0000 }, { 0x1174, 0x0000 }, | |
274 | { 0x1178, 0x0000 }, { 0x077a, 0x0000 }, | |
275 | { 0x077c, 0x0000 }, { 0x077e, 0x0000 }, | |
276 | { 0x0780, 0x0000 }, { 0x0782, 0x0000 }, | |
277 | { 0x0784, 0x0000 }, { 0x0786, 0x0000 }, | |
278 | { 0x0788, 0x0000 }, { 0x07a2, 0x0000 }, | |
279 | { 0x07a4, 0x0000 }, { 0x07a6, 0x0000 }, | |
280 | { 0x07a8, 0x0000 }, { 0x07b6, 0x0000 }, | |
281 | { 0x07b8, 0x0002 }, { 0x07ba, 0x0004 }, | |
282 | { 0x07bc, 0x0004 }, { 0x07be, 0x0005 }, | |
283 | { 0x07c0, 0x0005 }, { S5K6AA_TERM, 0 }, | |
284 | }; | |
285 | ||
286 | /* TODO: Add RGB888 and Bayer format */ | |
287 | static const struct s5k6aa_pixfmt s5k6aa_formats[] = { | |
288 | { V4L2_MBUS_FMT_YUYV8_2X8, V4L2_COLORSPACE_JPEG, 5 }, | |
289 | /* range 16-240 */ | |
290 | { V4L2_MBUS_FMT_YUYV8_2X8, V4L2_COLORSPACE_REC709, 6 }, | |
291 | { V4L2_MBUS_FMT_RGB565_2X8_BE, V4L2_COLORSPACE_JPEG, 0 }, | |
292 | }; | |
293 | ||
294 | static const struct s5k6aa_interval s5k6aa_intervals[] = { | |
295 | { 1000, {10000, 1000000}, {1280, 1024} }, /* 10 fps */ | |
296 | { 666, {15000, 1000000}, {1280, 1024} }, /* 15 fps */ | |
297 | { 500, {20000, 1000000}, {1280, 720} }, /* 20 fps */ | |
298 | { 400, {25000, 1000000}, {640, 480} }, /* 25 fps */ | |
299 | { 333, {33300, 1000000}, {640, 480} }, /* 30 fps */ | |
300 | }; | |
301 | ||
302 | #define S5K6AA_INTERVAL_DEF_INDEX 1 /* 15 fps */ | |
303 | ||
304 | static inline struct v4l2_subdev *ctrl_to_sd(struct v4l2_ctrl *ctrl) | |
305 | { | |
306 | return &container_of(ctrl->handler, struct s5k6aa, ctrls.handler)->sd; | |
307 | } | |
308 | ||
309 | static inline struct s5k6aa *to_s5k6aa(struct v4l2_subdev *sd) | |
310 | { | |
311 | return container_of(sd, struct s5k6aa, sd); | |
312 | } | |
313 | ||
314 | /* Set initial values for all preview presets */ | |
315 | static void s5k6aa_presets_data_init(struct s5k6aa *s5k6aa) | |
316 | { | |
317 | struct s5k6aa_preset *preset = &s5k6aa->presets[0]; | |
318 | int i; | |
319 | ||
320 | for (i = 0; i < S5K6AA_MAX_PRESETS; i++) { | |
321 | preset->mbus_fmt.width = S5K6AA_OUT_WIDTH_DEF; | |
322 | preset->mbus_fmt.height = S5K6AA_OUT_HEIGHT_DEF; | |
323 | preset->mbus_fmt.code = s5k6aa_formats[0].code; | |
324 | preset->index = i; | |
325 | preset->clk_id = 0; | |
326 | preset++; | |
327 | } | |
328 | ||
329 | s5k6aa->fiv = &s5k6aa_intervals[S5K6AA_INTERVAL_DEF_INDEX]; | |
330 | s5k6aa->preset = &s5k6aa->presets[0]; | |
331 | } | |
332 | ||
333 | static int s5k6aa_i2c_read(struct i2c_client *client, u16 addr, u16 *val) | |
334 | { | |
335 | u8 wbuf[2] = {addr >> 8, addr & 0xFF}; | |
336 | struct i2c_msg msg[2]; | |
337 | u8 rbuf[2]; | |
338 | int ret; | |
339 | ||
340 | msg[0].addr = client->addr; | |
341 | msg[0].flags = 0; | |
342 | msg[0].len = 2; | |
343 | msg[0].buf = wbuf; | |
344 | ||
345 | msg[1].addr = client->addr; | |
346 | msg[1].flags = I2C_M_RD; | |
347 | msg[1].len = 2; | |
348 | msg[1].buf = rbuf; | |
349 | ||
350 | ret = i2c_transfer(client->adapter, msg, 2); | |
351 | *val = be16_to_cpu(*((u16 *)rbuf)); | |
352 | ||
353 | v4l2_dbg(3, debug, client, "i2c_read: 0x%04X : 0x%04x\n", addr, *val); | |
354 | ||
355 | return ret == 2 ? 0 : ret; | |
356 | } | |
357 | ||
358 | static int s5k6aa_i2c_write(struct i2c_client *client, u16 addr, u16 val) | |
359 | { | |
360 | u8 buf[4] = {addr >> 8, addr & 0xFF, val >> 8, val & 0xFF}; | |
361 | ||
362 | int ret = i2c_master_send(client, buf, 4); | |
363 | v4l2_dbg(3, debug, client, "i2c_write: 0x%04X : 0x%04x\n", addr, val); | |
364 | ||
365 | return ret == 4 ? 0 : ret; | |
366 | } | |
367 | ||
368 | /* The command register write, assumes Command_Wr_addH = 0x7000. */ | |
369 | static int s5k6aa_write(struct i2c_client *c, u16 addr, u16 val) | |
370 | { | |
371 | int ret = s5k6aa_i2c_write(c, REG_CMDWR_ADDRL, addr); | |
372 | if (ret) | |
373 | return ret; | |
374 | return s5k6aa_i2c_write(c, REG_CMDBUF0_ADDR, val); | |
375 | } | |
376 | ||
377 | /* The command register read, assumes Command_Rd_addH = 0x7000. */ | |
378 | static int s5k6aa_read(struct i2c_client *client, u16 addr, u16 *val) | |
379 | { | |
380 | int ret = s5k6aa_i2c_write(client, REG_CMDRD_ADDRL, addr); | |
381 | if (ret) | |
382 | return ret; | |
383 | return s5k6aa_i2c_read(client, REG_CMDBUF0_ADDR, val); | |
384 | } | |
385 | ||
386 | static int s5k6aa_write_array(struct v4l2_subdev *sd, | |
387 | const struct s5k6aa_regval *msg) | |
388 | { | |
389 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
390 | u16 addr_incr = 0; | |
391 | int ret = 0; | |
392 | ||
393 | while (msg->addr != S5K6AA_TERM) { | |
394 | if (addr_incr != 2) | |
395 | ret = s5k6aa_i2c_write(client, REG_CMDWR_ADDRL, | |
396 | msg->addr); | |
397 | if (ret) | |
398 | break; | |
399 | ret = s5k6aa_i2c_write(client, REG_CMDBUF0_ADDR, msg->val); | |
400 | if (ret) | |
401 | break; | |
402 | /* Assume that msg->addr is always less than 0xfffc */ | |
403 | addr_incr = (msg + 1)->addr - msg->addr; | |
404 | msg++; | |
405 | } | |
406 | ||
407 | return ret; | |
408 | } | |
409 | ||
410 | /* Configure the AHB high address bytes for GTG registers access */ | |
411 | static int s5k6aa_set_ahb_address(struct i2c_client *client) | |
412 | { | |
413 | int ret = s5k6aa_i2c_write(client, AHB_MSB_ADDR_PTR, GEN_REG_OFFSH); | |
414 | if (ret) | |
415 | return ret; | |
416 | ret = s5k6aa_i2c_write(client, REG_CMDRD_ADDRH, HOST_SWIF_OFFSH); | |
417 | if (ret) | |
418 | return ret; | |
419 | return s5k6aa_i2c_write(client, REG_CMDWR_ADDRH, HOST_SWIF_OFFSH); | |
420 | } | |
421 | ||
422 | /** | |
423 | * s5k6aa_configure_pixel_clock - apply ISP main clock/PLL configuration | |
424 | * | |
425 | * Configure the internal ISP PLL for the required output frequency. | |
426 | * Locking: called with s5k6aa.lock mutex held. | |
427 | */ | |
428 | static int s5k6aa_configure_pixel_clocks(struct s5k6aa *s5k6aa) | |
429 | { | |
430 | struct i2c_client *c = v4l2_get_subdevdata(&s5k6aa->sd); | |
431 | unsigned long fmclk = s5k6aa->mclk_frequency / 1000; | |
432 | u16 status; | |
433 | int ret; | |
434 | ||
435 | if (WARN(fmclk < MIN_MCLK_FREQ_KHZ || fmclk > MAX_MCLK_FREQ_KHZ, | |
436 | "Invalid clock frequency: %ld\n", fmclk)) | |
437 | return -EINVAL; | |
438 | ||
439 | s5k6aa->pclk_fmin = PCLK_FREQ_MIN; | |
440 | s5k6aa->pclk_fmax = PCLK_FREQ_MAX; | |
441 | s5k6aa->clk_fop = SYS_PLL_OUT_FREQ; | |
442 | ||
443 | /* External input clock frequency in kHz */ | |
444 | ret = s5k6aa_write(c, REG_I_INCLK_FREQ_H, fmclk >> 16); | |
445 | if (!ret) | |
446 | ret = s5k6aa_write(c, REG_I_INCLK_FREQ_L, fmclk & 0xFFFF); | |
447 | if (!ret) | |
448 | ret = s5k6aa_write(c, REG_I_USE_NPVI_CLOCKS, 1); | |
449 | /* Internal PLL frequency */ | |
450 | if (!ret) | |
451 | ret = s5k6aa_write(c, REG_I_OPCLK_4KHZ(0), s5k6aa->clk_fop); | |
452 | if (!ret) | |
453 | ret = s5k6aa_write(c, REG_I_MIN_OUTRATE_4KHZ(0), | |
454 | s5k6aa->pclk_fmin); | |
455 | if (!ret) | |
456 | ret = s5k6aa_write(c, REG_I_MAX_OUTRATE_4KHZ(0), | |
457 | s5k6aa->pclk_fmax); | |
458 | if (!ret) | |
459 | ret = s5k6aa_write(c, REG_I_INIT_PARAMS_UPDATED, 1); | |
460 | if (!ret) | |
461 | ret = s5k6aa_read(c, REG_I_ERROR_INFO, &status); | |
462 | ||
463 | return ret ? ret : (status ? -EINVAL : 0); | |
464 | } | |
465 | ||
466 | /* Set horizontal and vertical image flipping */ | |
467 | static int s5k6aa_set_mirror(struct s5k6aa *s5k6aa, int horiz_flip) | |
468 | { | |
469 | struct i2c_client *client = v4l2_get_subdevdata(&s5k6aa->sd); | |
470 | int index = s5k6aa->preset->index; | |
471 | ||
472 | unsigned int vflip = s5k6aa->ctrls.vflip->val ^ s5k6aa->inv_vflip; | |
473 | unsigned int flip = (horiz_flip ^ s5k6aa->inv_hflip) | (vflip << 1); | |
474 | ||
475 | return s5k6aa_write(client, REG_P_PREV_MIRROR(index), flip); | |
476 | } | |
477 | ||
478 | /* Configure auto/manual white balance and R/G/B gains */ | |
479 | static int s5k6aa_set_awb(struct s5k6aa *s5k6aa, int awb) | |
480 | { | |
481 | struct i2c_client *c = v4l2_get_subdevdata(&s5k6aa->sd); | |
482 | struct s5k6aa_ctrls *ctrls = &s5k6aa->ctrls; | |
483 | u16 reg; | |
484 | ||
485 | int ret = s5k6aa_read(c, REG_DBG_AUTOALG_EN, ®); | |
486 | ||
487 | if (!ret && !awb) { | |
488 | ret = s5k6aa_write(c, REG_SF_RGAIN, ctrls->gain_red->val); | |
489 | if (!ret) | |
490 | ret = s5k6aa_write(c, REG_SF_RGAIN_CHG, 1); | |
491 | if (ret) | |
492 | return ret; | |
493 | ||
494 | ret = s5k6aa_write(c, REG_SF_GGAIN, ctrls->gain_green->val); | |
495 | if (!ret) | |
496 | ret = s5k6aa_write(c, REG_SF_GGAIN_CHG, 1); | |
497 | if (ret) | |
498 | return ret; | |
499 | ||
500 | ret = s5k6aa_write(c, REG_SF_BGAIN, ctrls->gain_blue->val); | |
501 | if (!ret) | |
502 | ret = s5k6aa_write(c, REG_SF_BGAIN_CHG, 1); | |
503 | } | |
504 | if (!ret) { | |
505 | reg = awb ? reg | AALG_WB_EN_MASK : reg & ~AALG_WB_EN_MASK; | |
506 | ret = s5k6aa_write(c, REG_DBG_AUTOALG_EN, reg); | |
507 | } | |
508 | ||
509 | return ret; | |
510 | } | |
511 | ||
512 | /* Program FW with exposure time, 'exposure' in us units */ | |
513 | static int s5k6aa_set_user_exposure(struct i2c_client *client, int exposure) | |
514 | { | |
515 | unsigned int time = exposure / 10; | |
516 | ||
517 | int ret = s5k6aa_write(client, REG_SF_USR_EXPOSURE_L, time & 0xffff); | |
518 | if (!ret) | |
519 | ret = s5k6aa_write(client, REG_SF_USR_EXPOSURE_H, time >> 16); | |
520 | if (ret) | |
521 | return ret; | |
522 | return s5k6aa_write(client, REG_SF_USR_EXPOSURE_CHG, 1); | |
523 | } | |
524 | ||
525 | static int s5k6aa_set_user_gain(struct i2c_client *client, int gain) | |
526 | { | |
527 | int ret = s5k6aa_write(client, REG_SF_USR_TOT_GAIN, gain); | |
528 | if (ret) | |
529 | return ret; | |
530 | return s5k6aa_write(client, REG_SF_USR_TOT_GAIN_CHG, 1); | |
531 | } | |
532 | ||
533 | /* Set auto/manual exposure and total gain */ | |
534 | static int s5k6aa_set_auto_exposure(struct s5k6aa *s5k6aa, int value) | |
535 | { | |
536 | struct i2c_client *c = v4l2_get_subdevdata(&s5k6aa->sd); | |
537 | unsigned int exp_time = s5k6aa->ctrls.exposure->val; | |
538 | u16 auto_alg; | |
539 | ||
540 | int ret = s5k6aa_read(c, REG_DBG_AUTOALG_EN, &auto_alg); | |
541 | if (ret) | |
542 | return ret; | |
543 | ||
544 | v4l2_dbg(1, debug, c, "man_exp: %d, auto_exp: %d, a_alg: 0x%x\n", | |
545 | exp_time, value, auto_alg); | |
546 | ||
547 | if (value == V4L2_EXPOSURE_AUTO) { | |
548 | auto_alg |= AALG_AE_EN_MASK | AALG_DIVLEI_EN_MASK; | |
549 | } else { | |
550 | ret = s5k6aa_set_user_exposure(c, exp_time); | |
551 | if (ret) | |
552 | return ret; | |
553 | ret = s5k6aa_set_user_gain(c, s5k6aa->ctrls.gain->val); | |
554 | if (ret) | |
555 | return ret; | |
556 | auto_alg &= ~(AALG_AE_EN_MASK | AALG_DIVLEI_EN_MASK); | |
557 | } | |
558 | ||
559 | return s5k6aa_write(c, REG_DBG_AUTOALG_EN, auto_alg); | |
560 | } | |
561 | ||
562 | static int s5k6aa_set_anti_flicker(struct s5k6aa *s5k6aa, int value) | |
563 | { | |
564 | struct i2c_client *client = v4l2_get_subdevdata(&s5k6aa->sd); | |
565 | u16 auto_alg; | |
566 | int ret; | |
567 | ||
568 | ret = s5k6aa_read(client, REG_DBG_AUTOALG_EN, &auto_alg); | |
569 | if (ret) | |
570 | return ret; | |
571 | ||
572 | if (value == V4L2_CID_POWER_LINE_FREQUENCY_AUTO) { | |
573 | auto_alg |= AALG_FLICKER_EN_MASK; | |
574 | } else { | |
575 | auto_alg &= ~AALG_FLICKER_EN_MASK; | |
576 | /* The V4L2_CID_LINE_FREQUENCY control values match | |
577 | * the register values */ | |
578 | ret = s5k6aa_write(client, REG_SF_FLICKER_QUANT, value); | |
579 | if (ret) | |
580 | return ret; | |
581 | ret = s5k6aa_write(client, REG_SF_FLICKER_QUANT_CHG, 1); | |
582 | if (ret) | |
583 | return ret; | |
584 | } | |
585 | ||
586 | return s5k6aa_write(client, REG_DBG_AUTOALG_EN, auto_alg); | |
587 | } | |
588 | ||
589 | static int s5k6aa_set_colorfx(struct s5k6aa *s5k6aa, int val) | |
590 | { | |
591 | struct i2c_client *client = v4l2_get_subdevdata(&s5k6aa->sd); | |
592 | static const struct v4l2_control colorfx[] = { | |
593 | { V4L2_COLORFX_NONE, 0 }, | |
594 | { V4L2_COLORFX_BW, 1 }, | |
595 | { V4L2_COLORFX_NEGATIVE, 2 }, | |
596 | { V4L2_COLORFX_SEPIA, 3 }, | |
597 | { V4L2_COLORFX_SKY_BLUE, 4 }, | |
598 | { V4L2_COLORFX_SKETCH, 5 }, | |
599 | }; | |
600 | int i; | |
601 | ||
602 | for (i = 0; i < ARRAY_SIZE(colorfx); i++) { | |
603 | if (colorfx[i].id == val) | |
604 | return s5k6aa_write(client, REG_G_SPEC_EFFECTS, | |
605 | colorfx[i].value); | |
606 | } | |
607 | return -EINVAL; | |
608 | } | |
609 | ||
610 | static int s5k6aa_preview_config_status(struct i2c_client *client) | |
611 | { | |
612 | u16 error = 0; | |
613 | int ret = s5k6aa_read(client, REG_G_PREV_CFG_ERROR, &error); | |
614 | ||
615 | v4l2_dbg(1, debug, client, "error: 0x%x (%d)\n", error, ret); | |
616 | return ret ? ret : (error ? -EINVAL : 0); | |
617 | } | |
618 | ||
619 | static int s5k6aa_get_pixfmt_index(struct s5k6aa *s5k6aa, | |
620 | struct v4l2_mbus_framefmt *mf) | |
621 | { | |
622 | unsigned int i; | |
623 | ||
624 | for (i = 0; i < ARRAY_SIZE(s5k6aa_formats); i++) | |
625 | if (mf->colorspace == s5k6aa_formats[i].colorspace && | |
626 | mf->code == s5k6aa_formats[i].code) | |
627 | return i; | |
628 | return 0; | |
629 | } | |
630 | ||
631 | static int s5k6aa_set_output_framefmt(struct s5k6aa *s5k6aa, | |
632 | struct s5k6aa_preset *preset) | |
633 | { | |
634 | struct i2c_client *client = v4l2_get_subdevdata(&s5k6aa->sd); | |
635 | int fmt_index = s5k6aa_get_pixfmt_index(s5k6aa, &preset->mbus_fmt); | |
636 | int ret; | |
637 | ||
638 | ret = s5k6aa_write(client, REG_P_OUT_WIDTH(preset->index), | |
639 | preset->mbus_fmt.width); | |
640 | if (!ret) | |
641 | ret = s5k6aa_write(client, REG_P_OUT_HEIGHT(preset->index), | |
642 | preset->mbus_fmt.height); | |
643 | if (!ret) | |
644 | ret = s5k6aa_write(client, REG_P_FMT(preset->index), | |
645 | s5k6aa_formats[fmt_index].reg_p_fmt); | |
646 | return ret; | |
647 | } | |
648 | ||
649 | static int s5k6aa_set_input_params(struct s5k6aa *s5k6aa) | |
650 | { | |
651 | struct i2c_client *c = v4l2_get_subdevdata(&s5k6aa->sd); | |
652 | struct v4l2_rect *r = &s5k6aa->ccd_rect; | |
653 | int ret; | |
654 | ||
655 | ret = s5k6aa_write(c, REG_G_PREVZOOM_IN_WIDTH, r->width); | |
656 | if (!ret) | |
657 | ret = s5k6aa_write(c, REG_G_PREVZOOM_IN_HEIGHT, r->height); | |
658 | if (!ret) | |
659 | ret = s5k6aa_write(c, REG_G_PREVZOOM_IN_XOFFS, r->left); | |
660 | if (!ret) | |
661 | ret = s5k6aa_write(c, REG_G_PREVZOOM_IN_YOFFS, r->top); | |
662 | if (!ret) | |
663 | ret = s5k6aa_write(c, REG_G_INPUTS_CHANGE_REQ, 1); | |
664 | if (!ret) | |
665 | s5k6aa->apply_crop = 0; | |
666 | ||
667 | return ret; | |
668 | } | |
669 | ||
670 | /** | |
671 | * s5k6aa_configure_video_bus - configure the video output interface | |
672 | * @bus_type: video bus type: parallel or MIPI-CSI | |
673 | * @nlanes: number of MIPI lanes to be used (MIPI-CSI only) | |
674 | * | |
675 | * Note: Only parallel bus operation has been tested. | |
676 | */ | |
677 | static int s5k6aa_configure_video_bus(struct s5k6aa *s5k6aa, | |
678 | enum v4l2_mbus_type bus_type, int nlanes) | |
679 | { | |
680 | struct i2c_client *client = v4l2_get_subdevdata(&s5k6aa->sd); | |
681 | u16 cfg = 0; | |
682 | int ret; | |
683 | ||
684 | /* | |
685 | * TODO: The sensor is supposed to support BT.601 and BT.656 | |
686 | * but there is nothing indicating how to switch between both | |
687 | * in the datasheet. For now default BT.601 interface is assumed. | |
688 | */ | |
689 | if (bus_type == V4L2_MBUS_CSI2) | |
690 | cfg = nlanes; | |
691 | else if (bus_type != V4L2_MBUS_PARALLEL) | |
692 | return -EINVAL; | |
693 | ||
694 | ret = s5k6aa_write(client, REG_OIF_EN_MIPI_LANES, cfg); | |
695 | if (ret) | |
696 | return ret; | |
697 | return s5k6aa_write(client, REG_OIF_CFG_CHG, 1); | |
698 | } | |
699 | ||
700 | /* This function should be called when switching to new user configuration set*/ | |
701 | static int s5k6aa_new_config_sync(struct i2c_client *client, int timeout, | |
702 | int cid) | |
703 | { | |
704 | unsigned long end = jiffies + msecs_to_jiffies(timeout); | |
705 | u16 reg = 1; | |
706 | int ret; | |
707 | ||
708 | ret = s5k6aa_write(client, REG_G_ACTIVE_PREV_CFG, cid); | |
709 | if (!ret) | |
710 | ret = s5k6aa_write(client, REG_G_PREV_CFG_CHG, 1); | |
711 | if (!ret) | |
712 | ret = s5k6aa_write(client, REG_G_NEW_CFG_SYNC, 1); | |
713 | if (timeout == 0) | |
714 | return ret; | |
715 | ||
716 | while (ret >= 0 && time_is_after_jiffies(end)) { | |
717 | ret = s5k6aa_read(client, REG_G_NEW_CFG_SYNC, ®); | |
718 | if (!reg) | |
719 | return 0; | |
720 | usleep_range(1000, 5000); | |
721 | } | |
722 | return ret ? ret : -ETIMEDOUT; | |
723 | } | |
724 | ||
725 | /** | |
726 | * s5k6aa_set_prev_config - write user preview register set | |
727 | * | |
728 | * Configure output resolution and color fromat, pixel clock | |
729 | * frequency range, device frame rate type and frame period range. | |
730 | */ | |
731 | static int s5k6aa_set_prev_config(struct s5k6aa *s5k6aa, | |
732 | struct s5k6aa_preset *preset) | |
733 | { | |
734 | struct i2c_client *client = v4l2_get_subdevdata(&s5k6aa->sd); | |
735 | int idx = preset->index; | |
736 | u16 frame_rate_q; | |
737 | int ret; | |
738 | ||
739 | if (s5k6aa->fiv->reg_fr_time >= S5K6AA_MAX_HIGHRES_FR_TIME) | |
740 | frame_rate_q = FR_RATE_Q_BEST_FRRATE; | |
741 | else | |
742 | frame_rate_q = FR_RATE_Q_BEST_QUALITY; | |
743 | ||
744 | ret = s5k6aa_set_output_framefmt(s5k6aa, preset); | |
745 | if (!ret) | |
746 | ret = s5k6aa_write(client, REG_P_MAX_OUT_RATE(idx), | |
747 | s5k6aa->pclk_fmax); | |
748 | if (!ret) | |
749 | ret = s5k6aa_write(client, REG_P_MIN_OUT_RATE(idx), | |
750 | s5k6aa->pclk_fmin); | |
751 | if (!ret) | |
752 | ret = s5k6aa_write(client, REG_P_CLK_INDEX(idx), | |
753 | preset->clk_id); | |
754 | if (!ret) | |
755 | ret = s5k6aa_write(client, REG_P_FR_RATE_TYPE(idx), | |
756 | FR_RATE_DYNAMIC); | |
757 | if (!ret) | |
758 | ret = s5k6aa_write(client, REG_P_FR_RATE_Q_TYPE(idx), | |
759 | frame_rate_q); | |
760 | if (!ret) | |
761 | ret = s5k6aa_write(client, REG_P_MAX_FR_TIME(idx), | |
762 | s5k6aa->fiv->reg_fr_time + 33); | |
763 | if (!ret) | |
764 | ret = s5k6aa_write(client, REG_P_MIN_FR_TIME(idx), | |
765 | s5k6aa->fiv->reg_fr_time - 33); | |
766 | if (!ret) | |
767 | ret = s5k6aa_new_config_sync(client, 250, idx); | |
768 | if (!ret) | |
769 | ret = s5k6aa_preview_config_status(client); | |
770 | if (!ret) | |
771 | s5k6aa->apply_cfg = 0; | |
772 | ||
773 | v4l2_dbg(1, debug, client, "Frame interval: %d +/- 3.3ms. (%d)\n", | |
774 | s5k6aa->fiv->reg_fr_time, ret); | |
775 | return ret; | |
776 | } | |
777 | ||
778 | /** | |
779 | * s5k6aa_initialize_isp - basic ISP MCU initialization | |
780 | * | |
781 | * Configure AHB addresses for registers read/write; configure PLLs for | |
782 | * required output pixel clock. The ISP power supply needs to be already | |
783 | * enabled, with an optional H/W reset. | |
784 | * Locking: called with s5k6aa.lock mutex held. | |
785 | */ | |
786 | static int s5k6aa_initialize_isp(struct v4l2_subdev *sd) | |
787 | { | |
788 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
789 | struct s5k6aa *s5k6aa = to_s5k6aa(sd); | |
790 | int ret; | |
791 | ||
792 | s5k6aa->apply_crop = 1; | |
793 | s5k6aa->apply_cfg = 1; | |
794 | msleep(100); | |
795 | ||
796 | ret = s5k6aa_set_ahb_address(client); | |
797 | if (ret) | |
798 | return ret; | |
799 | ret = s5k6aa_configure_video_bus(s5k6aa, s5k6aa->bus_type, | |
800 | s5k6aa->mipi_lanes); | |
801 | if (ret) | |
802 | return ret; | |
803 | ret = s5k6aa_write_array(sd, s5k6aa_analog_config); | |
804 | if (ret) | |
805 | return ret; | |
806 | msleep(20); | |
807 | ||
808 | return s5k6aa_configure_pixel_clocks(s5k6aa); | |
809 | } | |
810 | ||
811 | static int s5k6aa_gpio_set_value(struct s5k6aa *priv, int id, u32 val) | |
812 | { | |
813 | if (!gpio_is_valid(priv->gpio[id].gpio)) | |
814 | return 0; | |
815 | gpio_set_value(priv->gpio[id].gpio, !!val); | |
816 | return 1; | |
817 | } | |
818 | ||
819 | static int s5k6aa_gpio_assert(struct s5k6aa *priv, int id) | |
820 | { | |
821 | return s5k6aa_gpio_set_value(priv, id, priv->gpio[id].level); | |
822 | } | |
823 | ||
824 | static int s5k6aa_gpio_deassert(struct s5k6aa *priv, int id) | |
825 | { | |
826 | return s5k6aa_gpio_set_value(priv, id, !priv->gpio[id].level); | |
827 | } | |
828 | ||
829 | static int __s5k6aa_power_on(struct s5k6aa *s5k6aa) | |
830 | { | |
831 | int ret; | |
832 | ||
833 | ret = regulator_bulk_enable(S5K6AA_NUM_SUPPLIES, s5k6aa->supplies); | |
834 | if (ret) | |
835 | return ret; | |
836 | if (s5k6aa_gpio_deassert(s5k6aa, STBY)) | |
837 | usleep_range(150, 200); | |
838 | ||
839 | if (s5k6aa->s_power) | |
840 | ret = s5k6aa->s_power(1); | |
841 | usleep_range(4000, 4000); | |
842 | ||
843 | if (s5k6aa_gpio_deassert(s5k6aa, RST)) | |
844 | msleep(20); | |
845 | ||
846 | return ret; | |
847 | } | |
848 | ||
849 | static int __s5k6aa_power_off(struct s5k6aa *s5k6aa) | |
850 | { | |
851 | int ret; | |
852 | ||
853 | if (s5k6aa_gpio_assert(s5k6aa, RST)) | |
854 | usleep_range(100, 150); | |
855 | ||
856 | if (s5k6aa->s_power) { | |
857 | ret = s5k6aa->s_power(0); | |
858 | if (ret) | |
859 | return ret; | |
860 | } | |
861 | if (s5k6aa_gpio_assert(s5k6aa, STBY)) | |
862 | usleep_range(50, 100); | |
863 | s5k6aa->streaming = 0; | |
864 | ||
865 | return regulator_bulk_disable(S5K6AA_NUM_SUPPLIES, s5k6aa->supplies); | |
866 | } | |
867 | ||
868 | /* | |
869 | * V4L2 subdev core and video operations | |
870 | */ | |
871 | static int s5k6aa_set_power(struct v4l2_subdev *sd, int on) | |
872 | { | |
873 | struct s5k6aa *s5k6aa = to_s5k6aa(sd); | |
874 | int ret = 0; | |
875 | ||
876 | mutex_lock(&s5k6aa->lock); | |
877 | ||
878 | if (!on == s5k6aa->power) { | |
879 | if (on) { | |
880 | ret = __s5k6aa_power_on(s5k6aa); | |
881 | if (!ret) | |
882 | ret = s5k6aa_initialize_isp(sd); | |
883 | } else { | |
884 | ret = __s5k6aa_power_off(s5k6aa); | |
885 | } | |
886 | ||
887 | if (!ret) | |
888 | s5k6aa->power += on ? 1 : -1; | |
889 | } | |
890 | ||
891 | mutex_unlock(&s5k6aa->lock); | |
892 | ||
893 | if (!on || ret || s5k6aa->power != 1) | |
894 | return ret; | |
895 | ||
896 | return v4l2_ctrl_handler_setup(sd->ctrl_handler); | |
897 | } | |
898 | ||
899 | static int __s5k6aa_stream(struct s5k6aa *s5k6aa, int enable) | |
900 | { | |
901 | struct i2c_client *client = v4l2_get_subdevdata(&s5k6aa->sd); | |
902 | int ret = 0; | |
903 | ||
904 | ret = s5k6aa_write(client, REG_G_ENABLE_PREV, enable); | |
905 | if (!ret) | |
906 | ret = s5k6aa_write(client, REG_G_ENABLE_PREV_CHG, 1); | |
907 | if (!ret) | |
908 | s5k6aa->streaming = enable; | |
909 | ||
910 | return ret; | |
911 | } | |
912 | ||
913 | static int s5k6aa_s_stream(struct v4l2_subdev *sd, int on) | |
914 | { | |
915 | struct s5k6aa *s5k6aa = to_s5k6aa(sd); | |
916 | int ret = 0; | |
917 | ||
918 | mutex_lock(&s5k6aa->lock); | |
919 | ||
920 | if (s5k6aa->streaming == !on) { | |
921 | if (!ret && s5k6aa->apply_cfg) | |
922 | ret = s5k6aa_set_prev_config(s5k6aa, s5k6aa->preset); | |
923 | if (s5k6aa->apply_crop) | |
924 | ret = s5k6aa_set_input_params(s5k6aa); | |
925 | if (!ret) | |
926 | ret = __s5k6aa_stream(s5k6aa, !!on); | |
927 | } | |
928 | mutex_unlock(&s5k6aa->lock); | |
929 | ||
930 | return ret; | |
931 | } | |
932 | ||
933 | static int s5k6aa_g_frame_interval(struct v4l2_subdev *sd, | |
934 | struct v4l2_subdev_frame_interval *fi) | |
935 | { | |
936 | struct s5k6aa *s5k6aa = to_s5k6aa(sd); | |
937 | ||
938 | mutex_lock(&s5k6aa->lock); | |
939 | fi->interval = s5k6aa->fiv->interval; | |
940 | mutex_unlock(&s5k6aa->lock); | |
941 | ||
942 | return 0; | |
943 | } | |
944 | ||
945 | static int __s5k6aa_set_frame_interval(struct s5k6aa *s5k6aa, | |
946 | struct v4l2_subdev_frame_interval *fi) | |
947 | { | |
948 | struct v4l2_mbus_framefmt *mbus_fmt = &s5k6aa->preset->mbus_fmt; | |
949 | const struct s5k6aa_interval *fiv = &s5k6aa_intervals[0]; | |
950 | unsigned int err, min_err = UINT_MAX; | |
951 | unsigned int i, fr_time; | |
952 | ||
953 | if (fi->interval.denominator == 0) | |
954 | return -EINVAL; | |
955 | ||
956 | fr_time = fi->interval.numerator * 10000 / fi->interval.denominator; | |
957 | ||
958 | for (i = 0; i < ARRAY_SIZE(s5k6aa_intervals); i++) { | |
959 | const struct s5k6aa_interval *iv = &s5k6aa_intervals[i]; | |
960 | ||
961 | if (mbus_fmt->width > iv->size.width || | |
962 | mbus_fmt->height > iv->size.height) | |
963 | continue; | |
964 | ||
965 | err = abs(iv->reg_fr_time - fr_time); | |
966 | if (err < min_err) { | |
967 | fiv = iv; | |
968 | min_err = err; | |
969 | } | |
970 | } | |
971 | s5k6aa->fiv = fiv; | |
972 | ||
973 | v4l2_dbg(1, debug, &s5k6aa->sd, "Changed frame interval to %d us\n", | |
974 | fiv->reg_fr_time * 100); | |
975 | return 0; | |
976 | } | |
977 | ||
978 | static int s5k6aa_s_frame_interval(struct v4l2_subdev *sd, | |
979 | struct v4l2_subdev_frame_interval *fi) | |
980 | { | |
981 | struct s5k6aa *s5k6aa = to_s5k6aa(sd); | |
982 | int ret; | |
983 | ||
984 | v4l2_dbg(1, debug, sd, "Setting %d/%d frame interval\n", | |
985 | fi->interval.numerator, fi->interval.denominator); | |
986 | ||
987 | mutex_lock(&s5k6aa->lock); | |
988 | ret = __s5k6aa_set_frame_interval(s5k6aa, fi); | |
989 | s5k6aa->apply_cfg = 1; | |
990 | ||
991 | mutex_unlock(&s5k6aa->lock); | |
992 | return ret; | |
993 | } | |
994 | ||
995 | /* | |
996 | * V4L2 subdev pad level and video operations | |
997 | */ | |
998 | static int s5k6aa_enum_frame_interval(struct v4l2_subdev *sd, | |
999 | struct v4l2_subdev_fh *fh, | |
1000 | struct v4l2_subdev_frame_interval_enum *fie) | |
1001 | { | |
1002 | struct s5k6aa *s5k6aa = to_s5k6aa(sd); | |
1003 | const struct s5k6aa_interval *fi; | |
1004 | int ret = 0; | |
1005 | ||
1006 | if (fie->index > ARRAY_SIZE(s5k6aa_intervals)) | |
1007 | return -EINVAL; | |
1008 | ||
1009 | v4l_bound_align_image(&fie->width, S5K6AA_WIN_WIDTH_MIN, | |
1010 | S5K6AA_WIN_WIDTH_MAX, 1, | |
1011 | &fie->height, S5K6AA_WIN_HEIGHT_MIN, | |
1012 | S5K6AA_WIN_HEIGHT_MAX, 1, 0); | |
1013 | ||
1014 | mutex_lock(&s5k6aa->lock); | |
1015 | fi = &s5k6aa_intervals[fie->index]; | |
1016 | if (fie->width > fi->size.width || fie->height > fi->size.height) | |
1017 | ret = -EINVAL; | |
1018 | else | |
1019 | fie->interval = fi->interval; | |
1020 | mutex_unlock(&s5k6aa->lock); | |
1021 | ||
1022 | return ret; | |
1023 | } | |
1024 | ||
1025 | static int s5k6aa_enum_mbus_code(struct v4l2_subdev *sd, | |
1026 | struct v4l2_subdev_fh *fh, | |
1027 | struct v4l2_subdev_mbus_code_enum *code) | |
1028 | { | |
1029 | if (code->index >= ARRAY_SIZE(s5k6aa_formats)) | |
1030 | return -EINVAL; | |
1031 | ||
1032 | code->code = s5k6aa_formats[code->index].code; | |
1033 | return 0; | |
1034 | } | |
1035 | ||
1036 | static int s5k6aa_enum_frame_size(struct v4l2_subdev *sd, | |
1037 | struct v4l2_subdev_fh *fh, | |
1038 | struct v4l2_subdev_frame_size_enum *fse) | |
1039 | { | |
1040 | int i = ARRAY_SIZE(s5k6aa_formats); | |
1041 | ||
1042 | if (fse->index > 0) | |
1043 | return -EINVAL; | |
1044 | ||
1045 | while (--i) | |
1046 | if (fse->code == s5k6aa_formats[i].code) | |
1047 | break; | |
1048 | ||
1049 | fse->code = s5k6aa_formats[i].code; | |
1050 | fse->min_width = S5K6AA_WIN_WIDTH_MIN; | |
1051 | fse->max_width = S5K6AA_WIN_WIDTH_MAX; | |
1052 | fse->max_height = S5K6AA_WIN_HEIGHT_MIN; | |
1053 | fse->min_height = S5K6AA_WIN_HEIGHT_MAX; | |
1054 | ||
1055 | return 0; | |
1056 | } | |
1057 | ||
1058 | static struct v4l2_rect * | |
1059 | __s5k6aa_get_crop_rect(struct s5k6aa *s5k6aa, struct v4l2_subdev_fh *fh, | |
1060 | enum v4l2_subdev_format_whence which) | |
1061 | { | |
1062 | if (which == V4L2_SUBDEV_FORMAT_ACTIVE) | |
1063 | return &s5k6aa->ccd_rect; | |
1064 | if (which == V4L2_SUBDEV_FORMAT_TRY) | |
1065 | return v4l2_subdev_get_try_crop(fh, 0); | |
1066 | ||
1067 | return NULL; | |
1068 | } | |
1069 | ||
1070 | static void s5k6aa_try_format(struct s5k6aa *s5k6aa, | |
1071 | struct v4l2_mbus_framefmt *mf) | |
1072 | { | |
1073 | unsigned int index; | |
1074 | ||
1075 | v4l_bound_align_image(&mf->width, S5K6AA_WIN_WIDTH_MIN, | |
1076 | S5K6AA_WIN_WIDTH_MAX, 1, | |
1077 | &mf->height, S5K6AA_WIN_HEIGHT_MIN, | |
1078 | S5K6AA_WIN_HEIGHT_MAX, 1, 0); | |
1079 | ||
1080 | if (mf->colorspace != V4L2_COLORSPACE_JPEG && | |
1081 | mf->colorspace != V4L2_COLORSPACE_REC709) | |
1082 | mf->colorspace = V4L2_COLORSPACE_JPEG; | |
1083 | ||
1084 | index = s5k6aa_get_pixfmt_index(s5k6aa, mf); | |
1085 | ||
1086 | mf->colorspace = s5k6aa_formats[index].colorspace; | |
1087 | mf->code = s5k6aa_formats[index].code; | |
1088 | mf->field = V4L2_FIELD_NONE; | |
1089 | } | |
1090 | ||
1091 | static int s5k6aa_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, | |
1092 | struct v4l2_subdev_format *fmt) | |
1093 | { | |
1094 | struct s5k6aa *s5k6aa = to_s5k6aa(sd); | |
1095 | struct v4l2_mbus_framefmt *mf; | |
1096 | ||
1097 | memset(fmt->reserved, 0, sizeof(fmt->reserved)); | |
1098 | ||
1099 | if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { | |
1100 | mf = v4l2_subdev_get_try_format(fh, 0); | |
1101 | fmt->format = *mf; | |
1102 | return 0; | |
1103 | } | |
1104 | ||
1105 | mutex_lock(&s5k6aa->lock); | |
1106 | fmt->format = s5k6aa->preset->mbus_fmt; | |
1107 | mutex_unlock(&s5k6aa->lock); | |
1108 | ||
1109 | return 0; | |
1110 | } | |
1111 | ||
1112 | static int s5k6aa_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, | |
1113 | struct v4l2_subdev_format *fmt) | |
1114 | { | |
1115 | struct s5k6aa *s5k6aa = to_s5k6aa(sd); | |
1116 | struct s5k6aa_preset *preset = s5k6aa->preset; | |
1117 | struct v4l2_mbus_framefmt *mf; | |
1118 | struct v4l2_rect *crop; | |
1119 | int ret = 0; | |
1120 | ||
1121 | mutex_lock(&s5k6aa->lock); | |
1122 | s5k6aa_try_format(s5k6aa, &fmt->format); | |
1123 | ||
1124 | if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { | |
1125 | mf = v4l2_subdev_get_try_format(fh, fmt->pad); | |
1126 | crop = v4l2_subdev_get_try_crop(fh, 0); | |
1127 | } else { | |
1128 | if (s5k6aa->streaming) { | |
1129 | ret = -EBUSY; | |
1130 | } else { | |
1131 | mf = &preset->mbus_fmt; | |
1132 | crop = &s5k6aa->ccd_rect; | |
1133 | s5k6aa->apply_cfg = 1; | |
1134 | } | |
1135 | } | |
1136 | ||
1137 | if (ret == 0) { | |
1138 | struct v4l2_subdev_frame_interval fiv = { | |
1139 | .interval = {0, 1} | |
1140 | }; | |
1141 | ||
1142 | *mf = fmt->format; | |
1143 | /* | |
1144 | * Make sure the crop window is valid, i.e. its size is | |
1145 | * greater than the output window, as the ISP supports | |
1146 | * only down-scaling. | |
1147 | */ | |
1148 | crop->width = clamp_t(unsigned int, crop->width, mf->width, | |
1149 | S5K6AA_WIN_WIDTH_MAX); | |
1150 | crop->height = clamp_t(unsigned int, crop->height, mf->height, | |
1151 | S5K6AA_WIN_HEIGHT_MAX); | |
1152 | crop->left = clamp_t(unsigned int, crop->left, 0, | |
1153 | S5K6AA_WIN_WIDTH_MAX - crop->width); | |
1154 | crop->top = clamp_t(unsigned int, crop->top, 0, | |
1155 | S5K6AA_WIN_HEIGHT_MAX - crop->height); | |
1156 | ||
1157 | /* Reset to minimum possible frame interval */ | |
1158 | ret = __s5k6aa_set_frame_interval(s5k6aa, &fiv); | |
1159 | } | |
1160 | mutex_unlock(&s5k6aa->lock); | |
1161 | ||
1162 | return ret; | |
1163 | } | |
1164 | ||
1165 | static int s5k6aa_get_crop(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, | |
1166 | struct v4l2_subdev_crop *crop) | |
1167 | { | |
1168 | struct s5k6aa *s5k6aa = to_s5k6aa(sd); | |
1169 | struct v4l2_rect *rect; | |
1170 | ||
1171 | memset(crop->reserved, 0, sizeof(crop->reserved)); | |
1172 | mutex_lock(&s5k6aa->lock); | |
1173 | ||
1174 | rect = __s5k6aa_get_crop_rect(s5k6aa, fh, crop->which); | |
1175 | if (rect) | |
1176 | crop->rect = *rect; | |
1177 | ||
1178 | mutex_unlock(&s5k6aa->lock); | |
1179 | ||
1180 | v4l2_dbg(1, debug, sd, "Current crop rectangle: (%d,%d)/%dx%d\n", | |
1181 | rect->left, rect->top, rect->width, rect->height); | |
1182 | ||
1183 | return 0; | |
1184 | } | |
1185 | ||
1186 | static int s5k6aa_set_crop(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, | |
1187 | struct v4l2_subdev_crop *crop) | |
1188 | { | |
1189 | struct s5k6aa *s5k6aa = to_s5k6aa(sd); | |
1190 | struct v4l2_mbus_framefmt *mf; | |
1191 | unsigned int max_x, max_y; | |
1192 | struct v4l2_rect *crop_r; | |
1193 | ||
1194 | mutex_lock(&s5k6aa->lock); | |
1195 | crop_r = __s5k6aa_get_crop_rect(s5k6aa, fh, crop->which); | |
1196 | ||
1197 | if (crop->which == V4L2_SUBDEV_FORMAT_ACTIVE) { | |
1198 | mf = &s5k6aa->preset->mbus_fmt; | |
1199 | s5k6aa->apply_crop = 1; | |
1200 | } else { | |
1201 | mf = v4l2_subdev_get_try_format(fh, 0); | |
1202 | } | |
1203 | v4l_bound_align_image(&crop->rect.width, mf->width, | |
1204 | S5K6AA_WIN_WIDTH_MAX, 1, | |
1205 | &crop->rect.height, mf->height, | |
1206 | S5K6AA_WIN_HEIGHT_MAX, 1, 0); | |
1207 | ||
1208 | max_x = (S5K6AA_WIN_WIDTH_MAX - crop->rect.width) & ~1; | |
1209 | max_y = (S5K6AA_WIN_HEIGHT_MAX - crop->rect.height) & ~1; | |
1210 | ||
1211 | crop->rect.left = clamp_t(unsigned int, crop->rect.left, 0, max_x); | |
1212 | crop->rect.top = clamp_t(unsigned int, crop->rect.top, 0, max_y); | |
1213 | ||
1214 | *crop_r = crop->rect; | |
1215 | ||
1216 | mutex_unlock(&s5k6aa->lock); | |
1217 | ||
1218 | v4l2_dbg(1, debug, sd, "Set crop rectangle: (%d,%d)/%dx%d\n", | |
1219 | crop_r->left, crop_r->top, crop_r->width, crop_r->height); | |
1220 | ||
1221 | return 0; | |
1222 | } | |
1223 | ||
1224 | static const struct v4l2_subdev_pad_ops s5k6aa_pad_ops = { | |
1225 | .enum_mbus_code = s5k6aa_enum_mbus_code, | |
1226 | .enum_frame_size = s5k6aa_enum_frame_size, | |
1227 | .enum_frame_interval = s5k6aa_enum_frame_interval, | |
1228 | .get_fmt = s5k6aa_get_fmt, | |
1229 | .set_fmt = s5k6aa_set_fmt, | |
1230 | .get_crop = s5k6aa_get_crop, | |
1231 | .set_crop = s5k6aa_set_crop, | |
1232 | }; | |
1233 | ||
1234 | static const struct v4l2_subdev_video_ops s5k6aa_video_ops = { | |
1235 | .g_frame_interval = s5k6aa_g_frame_interval, | |
1236 | .s_frame_interval = s5k6aa_s_frame_interval, | |
1237 | .s_stream = s5k6aa_s_stream, | |
1238 | }; | |
1239 | ||
1240 | /* | |
1241 | * V4L2 subdev controls | |
1242 | */ | |
1243 | ||
1244 | static int s5k6aa_s_ctrl(struct v4l2_ctrl *ctrl) | |
1245 | { | |
1246 | struct v4l2_subdev *sd = ctrl_to_sd(ctrl); | |
1247 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
1248 | struct s5k6aa *s5k6aa = to_s5k6aa(sd); | |
1249 | int idx, err = 0; | |
1250 | ||
1251 | v4l2_dbg(1, debug, sd, "ctrl: 0x%x, value: %d\n", ctrl->id, ctrl->val); | |
1252 | ||
1253 | mutex_lock(&s5k6aa->lock); | |
1254 | /* | |
1255 | * If the device is not powered up by the host driver do | |
1256 | * not apply any controls to H/W at this time. Instead | |
1257 | * the controls will be restored right after power-up. | |
1258 | */ | |
1259 | if (s5k6aa->power == 0) | |
1260 | goto unlock; | |
1261 | idx = s5k6aa->preset->index; | |
1262 | ||
1263 | switch (ctrl->id) { | |
1264 | case V4L2_CID_AUTO_WHITE_BALANCE: | |
1265 | err = s5k6aa_set_awb(s5k6aa, ctrl->val); | |
1266 | break; | |
1267 | ||
1268 | case V4L2_CID_BRIGHTNESS: | |
1269 | err = s5k6aa_write(client, REG_USER_BRIGHTNESS, ctrl->val); | |
1270 | break; | |
1271 | ||
1272 | case V4L2_CID_COLORFX: | |
1273 | err = s5k6aa_set_colorfx(s5k6aa, ctrl->val); | |
1274 | break; | |
1275 | ||
1276 | case V4L2_CID_CONTRAST: | |
1277 | err = s5k6aa_write(client, REG_USER_CONTRAST, ctrl->val); | |
1278 | break; | |
1279 | ||
1280 | case V4L2_CID_EXPOSURE_AUTO: | |
1281 | err = s5k6aa_set_auto_exposure(s5k6aa, ctrl->val); | |
1282 | break; | |
1283 | ||
1284 | case V4L2_CID_HFLIP: | |
1285 | err = s5k6aa_set_mirror(s5k6aa, ctrl->val); | |
1286 | if (err) | |
1287 | break; | |
1288 | err = s5k6aa_write(client, REG_G_PREV_CFG_CHG, 1); | |
1289 | break; | |
1290 | ||
1291 | case V4L2_CID_POWER_LINE_FREQUENCY: | |
1292 | err = s5k6aa_set_anti_flicker(s5k6aa, ctrl->val); | |
1293 | break; | |
1294 | ||
1295 | case V4L2_CID_SATURATION: | |
1296 | err = s5k6aa_write(client, REG_USER_SATURATION, ctrl->val); | |
1297 | break; | |
1298 | ||
1299 | case V4L2_CID_SHARPNESS: | |
1300 | err = s5k6aa_write(client, REG_USER_SHARPBLUR, ctrl->val); | |
1301 | break; | |
1302 | ||
1303 | case V4L2_CID_WHITE_BALANCE_TEMPERATURE: | |
1304 | err = s5k6aa_write(client, REG_P_COLORTEMP(idx), ctrl->val); | |
1305 | if (err) | |
1306 | break; | |
1307 | err = s5k6aa_write(client, REG_G_PREV_CFG_CHG, 1); | |
1308 | break; | |
1309 | } | |
1310 | unlock: | |
1311 | mutex_unlock(&s5k6aa->lock); | |
1312 | return err; | |
1313 | } | |
1314 | ||
1315 | static const struct v4l2_ctrl_ops s5k6aa_ctrl_ops = { | |
1316 | .s_ctrl = s5k6aa_s_ctrl, | |
1317 | }; | |
1318 | ||
1319 | static int s5k6aa_log_status(struct v4l2_subdev *sd) | |
1320 | { | |
1321 | v4l2_ctrl_handler_log_status(sd->ctrl_handler, sd->name); | |
1322 | return 0; | |
1323 | } | |
1324 | ||
1325 | #define V4L2_CID_RED_GAIN (V4L2_CTRL_CLASS_CAMERA | 0x1001) | |
1326 | #define V4L2_CID_GREEN_GAIN (V4L2_CTRL_CLASS_CAMERA | 0x1002) | |
1327 | #define V4L2_CID_BLUE_GAIN (V4L2_CTRL_CLASS_CAMERA | 0x1003) | |
1328 | ||
1329 | static const struct v4l2_ctrl_config s5k6aa_ctrls[] = { | |
1330 | { | |
1331 | .ops = &s5k6aa_ctrl_ops, | |
1332 | .id = V4L2_CID_RED_GAIN, | |
1333 | .type = V4L2_CTRL_TYPE_INTEGER, | |
1334 | .name = "Gain, Red", | |
1335 | .min = 0, | |
1336 | .max = 256, | |
1337 | .def = 127, | |
1338 | .step = 1, | |
1339 | }, { | |
1340 | .ops = &s5k6aa_ctrl_ops, | |
1341 | .id = V4L2_CID_GREEN_GAIN, | |
1342 | .type = V4L2_CTRL_TYPE_INTEGER, | |
1343 | .name = "Gain, Green", | |
1344 | .min = 0, | |
1345 | .max = 256, | |
1346 | .def = 127, | |
1347 | .step = 1, | |
1348 | }, { | |
1349 | .ops = &s5k6aa_ctrl_ops, | |
1350 | .id = V4L2_CID_BLUE_GAIN, | |
1351 | .type = V4L2_CTRL_TYPE_INTEGER, | |
1352 | .name = "Gain, Blue", | |
1353 | .min = 0, | |
1354 | .max = 256, | |
1355 | .def = 127, | |
1356 | .step = 1, | |
1357 | }, | |
1358 | }; | |
1359 | ||
1360 | static int s5k6aa_initialize_ctrls(struct s5k6aa *s5k6aa) | |
1361 | { | |
1362 | const struct v4l2_ctrl_ops *ops = &s5k6aa_ctrl_ops; | |
1363 | struct s5k6aa_ctrls *ctrls = &s5k6aa->ctrls; | |
1364 | struct v4l2_ctrl_handler *hdl = &ctrls->handler; | |
1365 | ||
1366 | int ret = v4l2_ctrl_handler_init(hdl, 16); | |
1367 | if (ret) | |
1368 | return ret; | |
1369 | /* Auto white balance cluster */ | |
1370 | ctrls->awb = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_AUTO_WHITE_BALANCE, | |
1371 | 0, 1, 1, 1); | |
1372 | ctrls->gain_red = v4l2_ctrl_new_custom(hdl, &s5k6aa_ctrls[0], NULL); | |
1373 | ctrls->gain_green = v4l2_ctrl_new_custom(hdl, &s5k6aa_ctrls[1], NULL); | |
1374 | ctrls->gain_blue = v4l2_ctrl_new_custom(hdl, &s5k6aa_ctrls[2], NULL); | |
1375 | v4l2_ctrl_auto_cluster(4, &ctrls->awb, 0, false); | |
1376 | ||
1377 | ctrls->hflip = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_HFLIP, 0, 1, 1, 0); | |
1378 | ctrls->vflip = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_VFLIP, 0, 1, 1, 0); | |
1379 | v4l2_ctrl_cluster(2, &ctrls->hflip); | |
1380 | ||
1381 | ctrls->auto_exp = v4l2_ctrl_new_std_menu(hdl, ops, | |
1382 | V4L2_CID_EXPOSURE_AUTO, | |
1383 | V4L2_EXPOSURE_MANUAL, 0, V4L2_EXPOSURE_AUTO); | |
1384 | /* Exposure time: x 1 us */ | |
1385 | ctrls->exposure = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_EXPOSURE, | |
1386 | 0, 6000000U, 1, 100000U); | |
1387 | /* Total gain: 256 <=> 1x */ | |
1388 | ctrls->gain = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_GAIN, | |
1389 | 0, 256, 1, 256); | |
1390 | v4l2_ctrl_auto_cluster(3, &ctrls->auto_exp, 0, false); | |
1391 | ||
1392 | v4l2_ctrl_new_std_menu(hdl, ops, V4L2_CID_POWER_LINE_FREQUENCY, | |
1393 | V4L2_CID_POWER_LINE_FREQUENCY_AUTO, 0, | |
1394 | V4L2_CID_POWER_LINE_FREQUENCY_AUTO); | |
1395 | ||
1396 | v4l2_ctrl_new_std_menu(hdl, ops, V4L2_CID_COLORFX, | |
1397 | V4L2_COLORFX_SKY_BLUE, ~0x6f, V4L2_COLORFX_NONE); | |
1398 | ||
1399 | v4l2_ctrl_new_std(hdl, ops, V4L2_CID_WHITE_BALANCE_TEMPERATURE, | |
1400 | 0, 256, 1, 0); | |
1401 | ||
1402 | v4l2_ctrl_new_std(hdl, ops, V4L2_CID_SATURATION, -127, 127, 1, 0); | |
1403 | v4l2_ctrl_new_std(hdl, ops, V4L2_CID_BRIGHTNESS, -127, 127, 1, 0); | |
1404 | v4l2_ctrl_new_std(hdl, ops, V4L2_CID_CONTRAST, -127, 127, 1, 0); | |
1405 | v4l2_ctrl_new_std(hdl, ops, V4L2_CID_SHARPNESS, -127, 127, 1, 0); | |
1406 | ||
1407 | if (hdl->error) { | |
1408 | ret = hdl->error; | |
1409 | v4l2_ctrl_handler_free(hdl); | |
1410 | return ret; | |
1411 | } | |
1412 | ||
1413 | s5k6aa->sd.ctrl_handler = hdl; | |
1414 | return 0; | |
1415 | } | |
1416 | ||
1417 | /* | |
1418 | * V4L2 subdev internal operations | |
1419 | */ | |
1420 | static int s5k6aa_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) | |
1421 | { | |
1422 | struct v4l2_mbus_framefmt *format = v4l2_subdev_get_try_format(fh, 0); | |
1423 | struct v4l2_rect *crop = v4l2_subdev_get_try_crop(fh, 0); | |
1424 | ||
1425 | format->colorspace = s5k6aa_formats[0].colorspace; | |
1426 | format->code = s5k6aa_formats[0].code; | |
1427 | format->width = S5K6AA_OUT_WIDTH_DEF; | |
1428 | format->height = S5K6AA_OUT_HEIGHT_DEF; | |
1429 | format->field = V4L2_FIELD_NONE; | |
1430 | ||
1431 | crop->width = S5K6AA_WIN_WIDTH_MAX; | |
1432 | crop->height = S5K6AA_WIN_HEIGHT_MAX; | |
1433 | crop->left = 0; | |
1434 | crop->top = 0; | |
1435 | ||
1436 | return 0; | |
1437 | } | |
1438 | ||
1439 | int s5k6aa_check_fw_revision(struct s5k6aa *s5k6aa) | |
1440 | { | |
1441 | struct i2c_client *client = v4l2_get_subdevdata(&s5k6aa->sd); | |
1442 | u16 api_ver = 0, fw_rev = 0; | |
1443 | ||
1444 | int ret = s5k6aa_set_ahb_address(client); | |
1445 | ||
1446 | if (!ret) | |
1447 | ret = s5k6aa_read(client, REG_FW_APIVER, &api_ver); | |
1448 | if (!ret) | |
1449 | ret = s5k6aa_read(client, REG_FW_REVISION, &fw_rev); | |
1450 | if (ret) { | |
1451 | v4l2_err(&s5k6aa->sd, "FW revision check failed!\n"); | |
1452 | return ret; | |
1453 | } | |
1454 | ||
1455 | v4l2_info(&s5k6aa->sd, "FW API ver.: 0x%X, FW rev.: 0x%X\n", | |
1456 | api_ver, fw_rev); | |
1457 | ||
1458 | return api_ver == S5K6AAFX_FW_APIVER ? 0 : -ENODEV; | |
1459 | } | |
1460 | ||
1461 | static int s5k6aa_registered(struct v4l2_subdev *sd) | |
1462 | { | |
1463 | struct s5k6aa *s5k6aa = to_s5k6aa(sd); | |
1464 | int ret; | |
1465 | ||
1466 | mutex_lock(&s5k6aa->lock); | |
1467 | ret = __s5k6aa_power_on(s5k6aa); | |
1468 | if (!ret) { | |
1469 | msleep(100); | |
1470 | ret = s5k6aa_check_fw_revision(s5k6aa); | |
1471 | __s5k6aa_power_off(s5k6aa); | |
1472 | } | |
1473 | mutex_unlock(&s5k6aa->lock); | |
1474 | ||
1475 | return ret; | |
1476 | } | |
1477 | ||
1478 | static const struct v4l2_subdev_internal_ops s5k6aa_subdev_internal_ops = { | |
1479 | .registered = s5k6aa_registered, | |
1480 | .open = s5k6aa_open, | |
1481 | }; | |
1482 | ||
1483 | static const struct v4l2_subdev_core_ops s5k6aa_core_ops = { | |
1484 | .s_power = s5k6aa_set_power, | |
1485 | .log_status = s5k6aa_log_status, | |
1486 | }; | |
1487 | ||
1488 | static const struct v4l2_subdev_ops s5k6aa_subdev_ops = { | |
1489 | .core = &s5k6aa_core_ops, | |
1490 | .pad = &s5k6aa_pad_ops, | |
1491 | .video = &s5k6aa_video_ops, | |
1492 | }; | |
1493 | ||
1494 | /* | |
1495 | * GPIO setup | |
1496 | */ | |
1497 | static int s5k6aa_configure_gpio(int nr, int val, const char *name) | |
1498 | { | |
1499 | unsigned long flags = val ? GPIOF_OUT_INIT_HIGH : GPIOF_OUT_INIT_LOW; | |
1500 | int ret; | |
1501 | ||
1502 | if (!gpio_is_valid(nr)) | |
1503 | return 0; | |
1504 | ret = gpio_request_one(nr, flags, name); | |
1505 | if (!ret) | |
1506 | gpio_export(nr, 0); | |
1507 | return ret; | |
1508 | } | |
1509 | ||
1510 | static void s5k6aa_free_gpios(struct s5k6aa *s5k6aa) | |
1511 | { | |
1512 | int i; | |
1513 | ||
1514 | for (i = 0; i < ARRAY_SIZE(s5k6aa->gpio); i++) { | |
1515 | if (!gpio_is_valid(s5k6aa->gpio[i].gpio)) | |
1516 | continue; | |
1517 | gpio_free(s5k6aa->gpio[i].gpio); | |
1518 | s5k6aa->gpio[i].gpio = -EINVAL; | |
1519 | } | |
1520 | } | |
1521 | ||
1522 | static int s5k6aa_configure_gpios(struct s5k6aa *s5k6aa, | |
1523 | const struct s5k6aa_platform_data *pdata) | |
1524 | { | |
1525 | const struct s5k6aa_gpio *gpio = &pdata->gpio_stby; | |
1526 | int ret; | |
1527 | ||
1528 | s5k6aa->gpio[STBY].gpio = -EINVAL; | |
1529 | s5k6aa->gpio[RST].gpio = -EINVAL; | |
1530 | ||
1531 | ret = s5k6aa_configure_gpio(gpio->gpio, gpio->level, "S5K6AA_STBY"); | |
1532 | if (ret) { | |
1533 | s5k6aa_free_gpios(s5k6aa); | |
1534 | return ret; | |
1535 | } | |
1536 | s5k6aa->gpio[STBY] = *gpio; | |
1537 | if (gpio_is_valid(gpio->gpio)) | |
1538 | gpio_set_value(gpio->gpio, 0); | |
1539 | ||
1540 | gpio = &pdata->gpio_reset; | |
1541 | ret = s5k6aa_configure_gpio(gpio->gpio, gpio->level, "S5K6AA_RST"); | |
1542 | if (ret) { | |
1543 | s5k6aa_free_gpios(s5k6aa); | |
1544 | return ret; | |
1545 | } | |
1546 | s5k6aa->gpio[RST] = *gpio; | |
1547 | if (gpio_is_valid(gpio->gpio)) | |
1548 | gpio_set_value(gpio->gpio, 0); | |
1549 | ||
1550 | return 0; | |
1551 | } | |
1552 | ||
1553 | static int s5k6aa_probe(struct i2c_client *client, | |
1554 | const struct i2c_device_id *id) | |
1555 | { | |
1556 | const struct s5k6aa_platform_data *pdata = client->dev.platform_data; | |
1557 | struct v4l2_subdev *sd; | |
1558 | struct s5k6aa *s5k6aa; | |
1559 | int i, ret; | |
1560 | ||
1561 | if (pdata == NULL) { | |
1562 | dev_err(&client->dev, "Platform data not specified\n"); | |
1563 | return -EINVAL; | |
1564 | } | |
1565 | ||
1566 | if (pdata->mclk_frequency == 0) { | |
1567 | dev_err(&client->dev, "MCLK frequency not specified\n"); | |
1568 | return -EINVAL; | |
1569 | } | |
1570 | ||
1571 | s5k6aa = kzalloc(sizeof(*s5k6aa), GFP_KERNEL); | |
1572 | if (!s5k6aa) | |
1573 | return -ENOMEM; | |
1574 | ||
1575 | mutex_init(&s5k6aa->lock); | |
1576 | ||
1577 | s5k6aa->mclk_frequency = pdata->mclk_frequency; | |
1578 | s5k6aa->bus_type = pdata->bus_type; | |
1579 | s5k6aa->mipi_lanes = pdata->nlanes; | |
1580 | s5k6aa->s_power = pdata->set_power; | |
1581 | s5k6aa->inv_hflip = pdata->horiz_flip; | |
1582 | s5k6aa->inv_vflip = pdata->vert_flip; | |
1583 | ||
1584 | sd = &s5k6aa->sd; | |
bfa8dd3a | 1585 | v4l2_i2c_subdev_init(sd, client, &s5k6aa_subdev_ops); |
14b702dd | 1586 | strlcpy(sd->name, DRIVER_NAME, sizeof(sd->name)); |
bfa8dd3a SN |
1587 | |
1588 | sd->internal_ops = &s5k6aa_subdev_internal_ops; | |
1589 | sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; | |
1590 | ||
1591 | s5k6aa->pad.flags = MEDIA_PAD_FL_SOURCE; | |
1592 | sd->entity.type = MEDIA_ENT_T_V4L2_SUBDEV_SENSOR; | |
1593 | ret = media_entity_init(&sd->entity, 1, &s5k6aa->pad, 0); | |
1594 | if (ret) | |
1595 | goto out_err1; | |
1596 | ||
1597 | ret = s5k6aa_configure_gpios(s5k6aa, pdata); | |
1598 | if (ret) | |
1599 | goto out_err2; | |
1600 | ||
1601 | for (i = 0; i < S5K6AA_NUM_SUPPLIES; i++) | |
1602 | s5k6aa->supplies[i].supply = s5k6aa_supply_names[i]; | |
1603 | ||
1604 | ret = regulator_bulk_get(&client->dev, S5K6AA_NUM_SUPPLIES, | |
1605 | s5k6aa->supplies); | |
1606 | if (ret) { | |
1607 | dev_err(&client->dev, "Failed to get regulators\n"); | |
1608 | goto out_err3; | |
1609 | } | |
1610 | ||
1611 | ret = s5k6aa_initialize_ctrls(s5k6aa); | |
1612 | if (ret) | |
1613 | goto out_err4; | |
1614 | ||
1615 | s5k6aa_presets_data_init(s5k6aa); | |
1616 | ||
1617 | s5k6aa->ccd_rect.width = S5K6AA_WIN_WIDTH_MAX; | |
1618 | s5k6aa->ccd_rect.height = S5K6AA_WIN_HEIGHT_MAX; | |
1619 | s5k6aa->ccd_rect.left = 0; | |
1620 | s5k6aa->ccd_rect.top = 0; | |
1621 | ||
1622 | return 0; | |
1623 | ||
1624 | out_err4: | |
1625 | regulator_bulk_free(S5K6AA_NUM_SUPPLIES, s5k6aa->supplies); | |
1626 | out_err3: | |
1627 | s5k6aa_free_gpios(s5k6aa); | |
1628 | out_err2: | |
1629 | media_entity_cleanup(&s5k6aa->sd.entity); | |
1630 | out_err1: | |
1631 | kfree(s5k6aa); | |
1632 | return ret; | |
1633 | } | |
1634 | ||
1635 | static int s5k6aa_remove(struct i2c_client *client) | |
1636 | { | |
1637 | struct v4l2_subdev *sd = i2c_get_clientdata(client); | |
1638 | struct s5k6aa *s5k6aa = to_s5k6aa(sd); | |
1639 | ||
1640 | v4l2_device_unregister_subdev(sd); | |
1641 | v4l2_ctrl_handler_free(sd->ctrl_handler); | |
1642 | media_entity_cleanup(&sd->entity); | |
1643 | regulator_bulk_free(S5K6AA_NUM_SUPPLIES, s5k6aa->supplies); | |
1644 | s5k6aa_free_gpios(s5k6aa); | |
1645 | kfree(s5k6aa); | |
1646 | ||
1647 | return 0; | |
1648 | } | |
1649 | ||
1650 | static const struct i2c_device_id s5k6aa_id[] = { | |
1651 | { DRIVER_NAME, 0 }, | |
1652 | { }, | |
1653 | }; | |
1654 | MODULE_DEVICE_TABLE(i2c, s5k6aa_id); | |
1655 | ||
1656 | ||
1657 | static struct i2c_driver s5k6aa_i2c_driver = { | |
1658 | .driver = { | |
1659 | .name = DRIVER_NAME | |
1660 | }, | |
1661 | .probe = s5k6aa_probe, | |
1662 | .remove = s5k6aa_remove, | |
1663 | .id_table = s5k6aa_id, | |
1664 | }; | |
1665 | ||
c6e8d86f | 1666 | module_i2c_driver(s5k6aa_i2c_driver); |
bfa8dd3a SN |
1667 | |
1668 | MODULE_DESCRIPTION("Samsung S5K6AA(FX) SXGA camera driver"); | |
1669 | MODULE_AUTHOR("Sylwester Nawrocki <s.nawrocki@samsung.com>"); | |
1670 | MODULE_LICENSE("GPL"); |