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Robert Jarzmik77110ab2008-08-14 12:02:51 -03001/*
Mike Rapoportd7f83a52008-12-18 11:44:15 -03002 * Driver for MT9M111/MT9M112 CMOS Image Sensor from Micron
Robert Jarzmik77110ab2008-08-14 12:02:51 -03003 *
4 * Copyright (C) 2008, Robert Jarzmik <robert.jarzmik@free.fr>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10#include <linux/videodev2.h>
11#include <linux/slab.h>
12#include <linux/i2c.h>
13#include <linux/log2.h>
14#include <linux/gpio.h>
15#include <linux/delay.h>
16
17#include <media/v4l2-common.h>
18#include <media/v4l2-chip-ident.h>
19#include <media/soc_camera.h>
20
21/*
Mike Rapoportd7f83a52008-12-18 11:44:15 -030022 * mt9m111 and mt9m112 i2c address is 0x5d or 0x48 (depending on SAddr pin)
Robert Jarzmik77110ab2008-08-14 12:02:51 -030023 * The platform has to define i2c_board_info and call i2c_register_board_info()
24 */
25
26/* mt9m111: Sensor register addresses */
27#define MT9M111_CHIP_VERSION 0x000
28#define MT9M111_ROW_START 0x001
29#define MT9M111_COLUMN_START 0x002
30#define MT9M111_WINDOW_HEIGHT 0x003
31#define MT9M111_WINDOW_WIDTH 0x004
32#define MT9M111_HORIZONTAL_BLANKING_B 0x005
33#define MT9M111_VERTICAL_BLANKING_B 0x006
34#define MT9M111_HORIZONTAL_BLANKING_A 0x007
35#define MT9M111_VERTICAL_BLANKING_A 0x008
36#define MT9M111_SHUTTER_WIDTH 0x009
37#define MT9M111_ROW_SPEED 0x00a
38#define MT9M111_EXTRA_DELAY 0x00b
39#define MT9M111_SHUTTER_DELAY 0x00c
40#define MT9M111_RESET 0x00d
41#define MT9M111_READ_MODE_B 0x020
42#define MT9M111_READ_MODE_A 0x021
43#define MT9M111_FLASH_CONTROL 0x023
44#define MT9M111_GREEN1_GAIN 0x02b
45#define MT9M111_BLUE_GAIN 0x02c
46#define MT9M111_RED_GAIN 0x02d
47#define MT9M111_GREEN2_GAIN 0x02e
48#define MT9M111_GLOBAL_GAIN 0x02f
49#define MT9M111_CONTEXT_CONTROL 0x0c8
50#define MT9M111_PAGE_MAP 0x0f0
51#define MT9M111_BYTE_WISE_ADDR 0x0f1
52
53#define MT9M111_RESET_SYNC_CHANGES (1 << 15)
54#define MT9M111_RESET_RESTART_BAD_FRAME (1 << 9)
55#define MT9M111_RESET_SHOW_BAD_FRAMES (1 << 8)
56#define MT9M111_RESET_RESET_SOC (1 << 5)
57#define MT9M111_RESET_OUTPUT_DISABLE (1 << 4)
58#define MT9M111_RESET_CHIP_ENABLE (1 << 3)
59#define MT9M111_RESET_ANALOG_STANDBY (1 << 2)
60#define MT9M111_RESET_RESTART_FRAME (1 << 1)
61#define MT9M111_RESET_RESET_MODE (1 << 0)
62
63#define MT9M111_RMB_MIRROR_COLS (1 << 1)
64#define MT9M111_RMB_MIRROR_ROWS (1 << 0)
65#define MT9M111_CTXT_CTRL_RESTART (1 << 15)
66#define MT9M111_CTXT_CTRL_DEFECTCOR_B (1 << 12)
67#define MT9M111_CTXT_CTRL_RESIZE_B (1 << 10)
68#define MT9M111_CTXT_CTRL_CTRL2_B (1 << 9)
69#define MT9M111_CTXT_CTRL_GAMMA_B (1 << 8)
70#define MT9M111_CTXT_CTRL_XENON_EN (1 << 7)
71#define MT9M111_CTXT_CTRL_READ_MODE_B (1 << 3)
72#define MT9M111_CTXT_CTRL_LED_FLASH_EN (1 << 2)
73#define MT9M111_CTXT_CTRL_VBLANK_SEL_B (1 << 1)
74#define MT9M111_CTXT_CTRL_HBLANK_SEL_B (1 << 0)
75/*
76 * mt9m111: Colorpipe register addresses (0x100..0x1ff)
77 */
78#define MT9M111_OPER_MODE_CTRL 0x106
79#define MT9M111_OUTPUT_FORMAT_CTRL 0x108
80#define MT9M111_REDUCER_XZOOM_B 0x1a0
81#define MT9M111_REDUCER_XSIZE_B 0x1a1
82#define MT9M111_REDUCER_YZOOM_B 0x1a3
83#define MT9M111_REDUCER_YSIZE_B 0x1a4
84#define MT9M111_REDUCER_XZOOM_A 0x1a6
85#define MT9M111_REDUCER_XSIZE_A 0x1a7
86#define MT9M111_REDUCER_YZOOM_A 0x1a9
87#define MT9M111_REDUCER_YSIZE_A 0x1aa
88
89#define MT9M111_OUTPUT_FORMAT_CTRL2_A 0x13a
90#define MT9M111_OUTPUT_FORMAT_CTRL2_B 0x19b
91
92#define MT9M111_OPMODE_AUTOEXPO_EN (1 << 14)
Robert Jarzmik39bf3722008-12-18 11:29:05 -030093#define MT9M111_OPMODE_AUTOWHITEBAL_EN (1 << 1)
Robert Jarzmik77110ab2008-08-14 12:02:51 -030094
95#define MT9M111_OUTFMT_PROCESSED_BAYER (1 << 14)
96#define MT9M111_OUTFMT_BYPASS_IFP (1 << 10)
97#define MT9M111_OUTFMT_INV_PIX_CLOCK (1 << 9)
98#define MT9M111_OUTFMT_RGB (1 << 8)
99#define MT9M111_OUTFMT_RGB565 (0x0 << 6)
100#define MT9M111_OUTFMT_RGB555 (0x1 << 6)
101#define MT9M111_OUTFMT_RGB444x (0x2 << 6)
102#define MT9M111_OUTFMT_RGBx444 (0x3 << 6)
103#define MT9M111_OUTFMT_TST_RAMP_OFF (0x0 << 4)
104#define MT9M111_OUTFMT_TST_RAMP_COL (0x1 << 4)
105#define MT9M111_OUTFMT_TST_RAMP_ROW (0x2 << 4)
106#define MT9M111_OUTFMT_TST_RAMP_FRAME (0x3 << 4)
107#define MT9M111_OUTFMT_SHIFT_3_UP (1 << 3)
108#define MT9M111_OUTFMT_AVG_CHROMA (1 << 2)
109#define MT9M111_OUTFMT_SWAP_YCbCr_C_Y (1 << 1)
110#define MT9M111_OUTFMT_SWAP_RGB_EVEN (1 << 1)
111#define MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr (1 << 0)
112/*
113 * mt9m111: Camera control register addresses (0x200..0x2ff not implemented)
114 */
115
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300116#define reg_read(reg) mt9m111_reg_read(client, MT9M111_##reg)
117#define reg_write(reg, val) mt9m111_reg_write(client, MT9M111_##reg, (val))
118#define reg_set(reg, val) mt9m111_reg_set(client, MT9M111_##reg, (val))
119#define reg_clear(reg, val) mt9m111_reg_clear(client, MT9M111_##reg, (val))
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300120
121#define MT9M111_MIN_DARK_ROWS 8
122#define MT9M111_MIN_DARK_COLS 24
123#define MT9M111_MAX_HEIGHT 1024
124#define MT9M111_MAX_WIDTH 1280
125
126#define COL_FMT(_name, _depth, _fourcc, _colorspace) \
127 { .name = _name, .depth = _depth, .fourcc = _fourcc, \
128 .colorspace = _colorspace }
129#define RGB_FMT(_name, _depth, _fourcc) \
130 COL_FMT(_name, _depth, _fourcc, V4L2_COLORSPACE_SRGB)
Robert Jarzmik88f4b892008-12-17 14:05:31 -0300131#define JPG_FMT(_name, _depth, _fourcc) \
132 COL_FMT(_name, _depth, _fourcc, V4L2_COLORSPACE_JPEG)
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300133
134static const struct soc_camera_data_format mt9m111_colour_formats[] = {
Robert Jarzmik88f4b892008-12-17 14:05:31 -0300135 JPG_FMT("CbYCrY 16 bit", 16, V4L2_PIX_FMT_UYVY),
136 JPG_FMT("CrYCbY 16 bit", 16, V4L2_PIX_FMT_VYUY),
137 JPG_FMT("YCbYCr 16 bit", 16, V4L2_PIX_FMT_YUYV),
138 JPG_FMT("YCrYCb 16 bit", 16, V4L2_PIX_FMT_YVYU),
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300139 RGB_FMT("RGB 565", 16, V4L2_PIX_FMT_RGB565),
140 RGB_FMT("RGB 555", 16, V4L2_PIX_FMT_RGB555),
141 RGB_FMT("Bayer (sRGB) 10 bit", 10, V4L2_PIX_FMT_SBGGR16),
142 RGB_FMT("Bayer (sRGB) 8 bit", 8, V4L2_PIX_FMT_SBGGR8),
143};
144
145enum mt9m111_context {
146 HIGHPOWER = 0,
147 LOWPOWER,
148};
149
150struct mt9m111 {
151 struct i2c_client *client;
152 struct soc_camera_device icd;
Mike Rapoportd7f83a52008-12-18 11:44:15 -0300153 int model; /* V4L2_IDENT_MT9M11x* codes from v4l2-chip-ident.h */
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300154 enum mt9m111_context context;
Guennadi Liakhovetski09e231b2009-03-13 06:08:20 -0300155 struct v4l2_rect rect;
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300156 u32 pixfmt;
157 unsigned char autoexposure;
158 unsigned char datawidth;
159 unsigned int powered:1;
160 unsigned int hflip:1;
161 unsigned int vflip:1;
162 unsigned int swap_rgb_even_odd:1;
163 unsigned int swap_rgb_red_blue:1;
164 unsigned int swap_yuv_y_chromas:1;
165 unsigned int swap_yuv_cb_cr:1;
Robert Jarzmik39bf3722008-12-18 11:29:05 -0300166 unsigned int autowhitebalance:1;
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300167};
168
169static int reg_page_map_set(struct i2c_client *client, const u16 reg)
170{
171 int ret;
172 u16 page;
173 static int lastpage = -1; /* PageMap cache value */
174
175 page = (reg >> 8);
176 if (page == lastpage)
177 return 0;
178 if (page > 2)
179 return -EINVAL;
180
181 ret = i2c_smbus_write_word_data(client, MT9M111_PAGE_MAP, swab16(page));
Guennadi Liakhovetski506c6292008-08-14 12:03:49 -0300182 if (!ret)
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300183 lastpage = page;
184 return ret;
185}
186
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300187static int mt9m111_reg_read(struct i2c_client *client, const u16 reg)
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300188{
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300189 int ret;
190
191 ret = reg_page_map_set(client, reg);
192 if (!ret)
193 ret = swab16(i2c_smbus_read_word_data(client, (reg & 0xff)));
194
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300195 dev_dbg(&client->dev, "read reg.%03x -> %04x\n", reg, ret);
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300196 return ret;
197}
198
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300199static int mt9m111_reg_write(struct i2c_client *client, const u16 reg,
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300200 const u16 data)
201{
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300202 int ret;
203
204 ret = reg_page_map_set(client, reg);
Guennadi Liakhovetski506c6292008-08-14 12:03:49 -0300205 if (!ret)
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300206 ret = i2c_smbus_write_word_data(client, (reg & 0xff),
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300207 swab16(data));
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300208 dev_dbg(&client->dev, "write reg.%03x = %04x -> %d\n", reg, data, ret);
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300209 return ret;
210}
211
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300212static int mt9m111_reg_set(struct i2c_client *client, const u16 reg,
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300213 const u16 data)
214{
215 int ret;
216
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300217 ret = mt9m111_reg_read(client, reg);
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300218 if (ret >= 0)
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300219 ret = mt9m111_reg_write(client, reg, ret | data);
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300220 return ret;
221}
222
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300223static int mt9m111_reg_clear(struct i2c_client *client, const u16 reg,
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300224 const u16 data)
225{
226 int ret;
227
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300228 ret = mt9m111_reg_read(client, reg);
229 return mt9m111_reg_write(client, reg, ret & ~data);
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300230}
231
232static int mt9m111_set_context(struct soc_camera_device *icd,
233 enum mt9m111_context ctxt)
234{
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300235 struct i2c_client *client = to_i2c_client(icd->control);
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300236 int valB = MT9M111_CTXT_CTRL_RESTART | MT9M111_CTXT_CTRL_DEFECTCOR_B
237 | MT9M111_CTXT_CTRL_RESIZE_B | MT9M111_CTXT_CTRL_CTRL2_B
238 | MT9M111_CTXT_CTRL_GAMMA_B | MT9M111_CTXT_CTRL_READ_MODE_B
239 | MT9M111_CTXT_CTRL_VBLANK_SEL_B
240 | MT9M111_CTXT_CTRL_HBLANK_SEL_B;
241 int valA = MT9M111_CTXT_CTRL_RESTART;
242
243 if (ctxt == HIGHPOWER)
244 return reg_write(CONTEXT_CONTROL, valB);
245 else
246 return reg_write(CONTEXT_CONTROL, valA);
247}
248
Guennadi Liakhovetski09e231b2009-03-13 06:08:20 -0300249static int mt9m111_setup_rect(struct soc_camera_device *icd,
250 struct v4l2_rect *rect)
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300251{
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300252 struct i2c_client *client = to_i2c_client(icd->control);
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300253 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
Guennadi Liakhovetski506c6292008-08-14 12:03:49 -0300254 int ret, is_raw_format;
Guennadi Liakhovetski09e231b2009-03-13 06:08:20 -0300255 int width = rect->width;
256 int height = rect->height;
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300257
258 if ((mt9m111->pixfmt == V4L2_PIX_FMT_SBGGR8)
259 || (mt9m111->pixfmt == V4L2_PIX_FMT_SBGGR16))
260 is_raw_format = 1;
261 else
262 is_raw_format = 0;
263
Guennadi Liakhovetski09e231b2009-03-13 06:08:20 -0300264 ret = reg_write(COLUMN_START, rect->left);
Guennadi Liakhovetski506c6292008-08-14 12:03:49 -0300265 if (!ret)
Guennadi Liakhovetski09e231b2009-03-13 06:08:20 -0300266 ret = reg_write(ROW_START, rect->top);
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300267
268 if (is_raw_format) {
Guennadi Liakhovetski506c6292008-08-14 12:03:49 -0300269 if (!ret)
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300270 ret = reg_write(WINDOW_WIDTH, width);
Guennadi Liakhovetski506c6292008-08-14 12:03:49 -0300271 if (!ret)
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300272 ret = reg_write(WINDOW_HEIGHT, height);
273 } else {
Guennadi Liakhovetski506c6292008-08-14 12:03:49 -0300274 if (!ret)
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300275 ret = reg_write(REDUCER_XZOOM_B, MT9M111_MAX_WIDTH);
Guennadi Liakhovetski506c6292008-08-14 12:03:49 -0300276 if (!ret)
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300277 ret = reg_write(REDUCER_YZOOM_B, MT9M111_MAX_HEIGHT);
Guennadi Liakhovetski506c6292008-08-14 12:03:49 -0300278 if (!ret)
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300279 ret = reg_write(REDUCER_XSIZE_B, width);
Guennadi Liakhovetski506c6292008-08-14 12:03:49 -0300280 if (!ret)
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300281 ret = reg_write(REDUCER_YSIZE_B, height);
Guennadi Liakhovetski506c6292008-08-14 12:03:49 -0300282 if (!ret)
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300283 ret = reg_write(REDUCER_XZOOM_A, MT9M111_MAX_WIDTH);
Guennadi Liakhovetski506c6292008-08-14 12:03:49 -0300284 if (!ret)
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300285 ret = reg_write(REDUCER_YZOOM_A, MT9M111_MAX_HEIGHT);
Guennadi Liakhovetski506c6292008-08-14 12:03:49 -0300286 if (!ret)
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300287 ret = reg_write(REDUCER_XSIZE_A, width);
Guennadi Liakhovetski506c6292008-08-14 12:03:49 -0300288 if (!ret)
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300289 ret = reg_write(REDUCER_YSIZE_A, height);
290 }
291
292 return ret;
293}
294
295static int mt9m111_setup_pixfmt(struct soc_camera_device *icd, u16 outfmt)
296{
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300297 struct i2c_client *client = to_i2c_client(icd->control);
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300298 int ret;
299
300 ret = reg_write(OUTPUT_FORMAT_CTRL2_A, outfmt);
Guennadi Liakhovetski506c6292008-08-14 12:03:49 -0300301 if (!ret)
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300302 ret = reg_write(OUTPUT_FORMAT_CTRL2_B, outfmt);
303 return ret;
304}
305
306static int mt9m111_setfmt_bayer8(struct soc_camera_device *icd)
307{
308 return mt9m111_setup_pixfmt(icd, MT9M111_OUTFMT_PROCESSED_BAYER);
309}
310
311static int mt9m111_setfmt_bayer10(struct soc_camera_device *icd)
312{
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300313 return mt9m111_setup_pixfmt(icd, MT9M111_OUTFMT_BYPASS_IFP);
314}
315
316static int mt9m111_setfmt_rgb565(struct soc_camera_device *icd)
317{
318 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
319 int val = 0;
320
321 if (mt9m111->swap_rgb_red_blue)
322 val |= MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr;
323 if (mt9m111->swap_rgb_even_odd)
324 val |= MT9M111_OUTFMT_SWAP_RGB_EVEN;
325 val |= MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565;
326
327 return mt9m111_setup_pixfmt(icd, val);
328}
329
330static int mt9m111_setfmt_rgb555(struct soc_camera_device *icd)
331{
332 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
333 int val = 0;
334
335 if (mt9m111->swap_rgb_red_blue)
336 val |= MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr;
337 if (mt9m111->swap_rgb_even_odd)
338 val |= MT9M111_OUTFMT_SWAP_RGB_EVEN;
339 val |= MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB555;
340
341 return mt9m111_setup_pixfmt(icd, val);
342}
343
344static int mt9m111_setfmt_yuv(struct soc_camera_device *icd)
345{
346 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
347 int val = 0;
348
349 if (mt9m111->swap_yuv_cb_cr)
350 val |= MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr;
351 if (mt9m111->swap_yuv_y_chromas)
352 val |= MT9M111_OUTFMT_SWAP_YCbCr_C_Y;
353
354 return mt9m111_setup_pixfmt(icd, val);
355}
356
357static int mt9m111_enable(struct soc_camera_device *icd)
358{
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300359 struct i2c_client *client = to_i2c_client(icd->control);
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300360 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300361 struct soc_camera_link *icl = client->dev.platform_data;
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300362 int ret;
363
Stefan Herbrechtsmeier81034662008-08-14 12:04:11 -0300364 if (icl->power) {
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300365 ret = icl->power(&client->dev, 1);
Stefan Herbrechtsmeier81034662008-08-14 12:04:11 -0300366 if (ret < 0) {
367 dev_err(icd->vdev->parent,
368 "Platform failed to power-on the camera.\n");
369 return ret;
370 }
371 }
372
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300373 ret = reg_set(RESET, MT9M111_RESET_CHIP_ENABLE);
Guennadi Liakhovetski506c6292008-08-14 12:03:49 -0300374 if (!ret)
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300375 mt9m111->powered = 1;
376 return ret;
377}
378
379static int mt9m111_disable(struct soc_camera_device *icd)
380{
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300381 struct i2c_client *client = to_i2c_client(icd->control);
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300382 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300383 struct soc_camera_link *icl = client->dev.platform_data;
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300384 int ret;
385
386 ret = reg_clear(RESET, MT9M111_RESET_CHIP_ENABLE);
Guennadi Liakhovetski506c6292008-08-14 12:03:49 -0300387 if (!ret)
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300388 mt9m111->powered = 0;
Stefan Herbrechtsmeier81034662008-08-14 12:04:11 -0300389
390 if (icl->power)
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300391 icl->power(&client->dev, 0);
Stefan Herbrechtsmeier81034662008-08-14 12:04:11 -0300392
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300393 return ret;
394}
395
396static int mt9m111_reset(struct soc_camera_device *icd)
397{
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300398 struct i2c_client *client = to_i2c_client(icd->control);
399 struct soc_camera_link *icl = client->dev.platform_data;
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300400 int ret;
401
402 ret = reg_set(RESET, MT9M111_RESET_RESET_MODE);
Guennadi Liakhovetski506c6292008-08-14 12:03:49 -0300403 if (!ret)
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300404 ret = reg_set(RESET, MT9M111_RESET_RESET_SOC);
Guennadi Liakhovetski506c6292008-08-14 12:03:49 -0300405 if (!ret)
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300406 ret = reg_clear(RESET, MT9M111_RESET_RESET_MODE
407 | MT9M111_RESET_RESET_SOC);
Antonio Ospiteafb13682009-02-23 12:13:24 -0300408
409 if (icl->reset)
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300410 icl->reset(&client->dev);
Antonio Ospiteafb13682009-02-23 12:13:24 -0300411
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300412 return ret;
413}
414
415static int mt9m111_start_capture(struct soc_camera_device *icd)
416{
417 return 0;
418}
419
420static int mt9m111_stop_capture(struct soc_camera_device *icd)
421{
422 return 0;
423}
424
425static unsigned long mt9m111_query_bus_param(struct soc_camera_device *icd)
426{
Guennadi Liakhovetskibd73b362008-12-23 05:54:45 -0300427 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
428 struct soc_camera_link *icl = mt9m111->client->dev.platform_data;
429 unsigned long flags = SOCAM_MASTER | SOCAM_PCLK_SAMPLE_RISING |
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300430 SOCAM_HSYNC_ACTIVE_HIGH | SOCAM_VSYNC_ACTIVE_HIGH |
Guennadi Liakhovetski2d9329f2009-02-23 12:12:58 -0300431 SOCAM_DATA_ACTIVE_HIGH | SOCAM_DATAWIDTH_8;
Guennadi Liakhovetskibd73b362008-12-23 05:54:45 -0300432
433 return soc_camera_apply_sensor_flags(icl, flags);
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300434}
435
436static int mt9m111_set_bus_param(struct soc_camera_device *icd, unsigned long f)
437{
438 return 0;
439}
440
Guennadi Liakhovetski09e231b2009-03-13 06:08:20 -0300441static int mt9m111_set_crop(struct soc_camera_device *icd,
442 struct v4l2_rect *rect)
443{
444 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
445 int ret;
446
447 dev_dbg(&icd->dev, "%s left=%d, top=%d, width=%d, height=%d\n",
448 __func__, rect->left, rect->top, rect->width,
449 rect->height);
450
451 ret = mt9m111_setup_rect(icd, rect);
452 if (!ret)
453 mt9m111->rect = *rect;
454 return ret;
455}
456
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300457static int mt9m111_set_pixfmt(struct soc_camera_device *icd, u32 pixfmt)
458{
459 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
Guennadi Liakhovetski506c6292008-08-14 12:03:49 -0300460 int ret;
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300461
462 switch (pixfmt) {
463 case V4L2_PIX_FMT_SBGGR8:
464 ret = mt9m111_setfmt_bayer8(icd);
465 break;
466 case V4L2_PIX_FMT_SBGGR16:
467 ret = mt9m111_setfmt_bayer10(icd);
468 break;
469 case V4L2_PIX_FMT_RGB555:
470 ret = mt9m111_setfmt_rgb555(icd);
471 break;
472 case V4L2_PIX_FMT_RGB565:
473 ret = mt9m111_setfmt_rgb565(icd);
474 break;
Robert Jarzmik88f4b892008-12-17 14:05:31 -0300475 case V4L2_PIX_FMT_UYVY:
476 mt9m111->swap_yuv_y_chromas = 0;
477 mt9m111->swap_yuv_cb_cr = 0;
478 ret = mt9m111_setfmt_yuv(icd);
479 break;
480 case V4L2_PIX_FMT_VYUY:
481 mt9m111->swap_yuv_y_chromas = 0;
482 mt9m111->swap_yuv_cb_cr = 1;
483 ret = mt9m111_setfmt_yuv(icd);
484 break;
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300485 case V4L2_PIX_FMT_YUYV:
Robert Jarzmik88f4b892008-12-17 14:05:31 -0300486 mt9m111->swap_yuv_y_chromas = 1;
487 mt9m111->swap_yuv_cb_cr = 0;
488 ret = mt9m111_setfmt_yuv(icd);
489 break;
490 case V4L2_PIX_FMT_YVYU:
491 mt9m111->swap_yuv_y_chromas = 1;
492 mt9m111->swap_yuv_cb_cr = 1;
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300493 ret = mt9m111_setfmt_yuv(icd);
494 break;
495 default:
496 dev_err(&icd->dev, "Pixel format not handled : %x\n", pixfmt);
497 ret = -EINVAL;
498 }
499
Guennadi Liakhovetski506c6292008-08-14 12:03:49 -0300500 if (!ret)
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300501 mt9m111->pixfmt = pixfmt;
502
503 return ret;
504}
505
Guennadi Liakhovetskid8fac212008-12-01 09:45:21 -0300506static int mt9m111_set_fmt(struct soc_camera_device *icd,
Guennadi Liakhovetski09e231b2009-03-13 06:08:20 -0300507 struct v4l2_format *f)
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300508{
509 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
Guennadi Liakhovetski09e231b2009-03-13 06:08:20 -0300510 struct v4l2_pix_format *pix = &f->fmt.pix;
511 struct v4l2_rect rect = {
512 .left = mt9m111->rect.left,
513 .top = mt9m111->rect.top,
514 .width = pix->width,
515 .height = pix->height,
516 };
Guennadi Liakhovetski506c6292008-08-14 12:03:49 -0300517 int ret;
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300518
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300519 dev_dbg(&icd->dev, "%s fmt=%x left=%d, top=%d, width=%d, height=%d\n",
Guennadi Liakhovetski09e231b2009-03-13 06:08:20 -0300520 __func__, pix->pixelformat, rect.left, rect.top, rect.width,
521 rect.height);
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300522
Guennadi Liakhovetski09e231b2009-03-13 06:08:20 -0300523 ret = mt9m111_setup_rect(icd, &rect);
Guennadi Liakhovetski506c6292008-08-14 12:03:49 -0300524 if (!ret)
Guennadi Liakhovetski09e231b2009-03-13 06:08:20 -0300525 ret = mt9m111_set_pixfmt(icd, pix->pixelformat);
526 if (!ret)
527 mt9m111->rect = rect;
Guennadi Liakhovetski506c6292008-08-14 12:03:49 -0300528 return ret;
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300529}
530
Guennadi Liakhovetskid8fac212008-12-01 09:45:21 -0300531static int mt9m111_try_fmt(struct soc_camera_device *icd,
532 struct v4l2_format *f)
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300533{
Guennadi Liakhovetski64f59052008-12-18 11:51:55 -0300534 struct v4l2_pix_format *pix = &f->fmt.pix;
535
536 if (pix->height > MT9M111_MAX_HEIGHT)
537 pix->height = MT9M111_MAX_HEIGHT;
538 if (pix->width > MT9M111_MAX_WIDTH)
539 pix->width = MT9M111_MAX_WIDTH;
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300540
541 return 0;
542}
543
544static int mt9m111_get_chip_id(struct soc_camera_device *icd,
Hans Verkuilaecde8b52008-12-30 07:14:19 -0300545 struct v4l2_dbg_chip_ident *id)
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300546{
547 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
548
Hans Verkuilaecde8b52008-12-30 07:14:19 -0300549 if (id->match.type != V4L2_CHIP_MATCH_I2C_ADDR)
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300550 return -EINVAL;
551
Hans Verkuilaecde8b52008-12-30 07:14:19 -0300552 if (id->match.addr != mt9m111->client->addr)
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300553 return -ENODEV;
554
555 id->ident = mt9m111->model;
556 id->revision = 0;
557
558 return 0;
559}
560
561#ifdef CONFIG_VIDEO_ADV_DEBUG
562static int mt9m111_get_register(struct soc_camera_device *icd,
Hans Verkuilaecde8b52008-12-30 07:14:19 -0300563 struct v4l2_dbg_register *reg)
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300564{
565 int val;
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300566 struct i2c_client *client = to_i2c_client(icd->control);
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300567
Hans Verkuilaecde8b52008-12-30 07:14:19 -0300568 if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0x2ff)
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300569 return -EINVAL;
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300570 if (reg->match.addr != client->addr)
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300571 return -ENODEV;
572
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300573 val = mt9m111_reg_read(client, reg->reg);
Hans Verkuilaecde8b52008-12-30 07:14:19 -0300574 reg->size = 2;
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300575 reg->val = (u64)val;
576
577 if (reg->val > 0xffff)
578 return -EIO;
579
580 return 0;
581}
582
583static int mt9m111_set_register(struct soc_camera_device *icd,
Hans Verkuilaecde8b52008-12-30 07:14:19 -0300584 struct v4l2_dbg_register *reg)
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300585{
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300586 struct i2c_client *client = to_i2c_client(icd->control);
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300587
Hans Verkuilaecde8b52008-12-30 07:14:19 -0300588 if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0x2ff)
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300589 return -EINVAL;
590
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300591 if (reg->match.addr != client->addr)
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300592 return -ENODEV;
593
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300594 if (mt9m111_reg_write(client, reg->reg, reg->val) < 0)
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300595 return -EIO;
596
597 return 0;
598}
599#endif
600
601static const struct v4l2_queryctrl mt9m111_controls[] = {
602 {
603 .id = V4L2_CID_VFLIP,
604 .type = V4L2_CTRL_TYPE_BOOLEAN,
605 .name = "Flip Verticaly",
606 .minimum = 0,
607 .maximum = 1,
608 .step = 1,
609 .default_value = 0,
610 }, {
611 .id = V4L2_CID_HFLIP,
612 .type = V4L2_CTRL_TYPE_BOOLEAN,
613 .name = "Flip Horizontaly",
614 .minimum = 0,
615 .maximum = 1,
616 .step = 1,
617 .default_value = 0,
618 }, { /* gain = 1/32*val (=>gain=1 if val==32) */
619 .id = V4L2_CID_GAIN,
620 .type = V4L2_CTRL_TYPE_INTEGER,
621 .name = "Gain",
622 .minimum = 0,
623 .maximum = 63 * 2 * 2,
624 .step = 1,
625 .default_value = 32,
626 .flags = V4L2_CTRL_FLAG_SLIDER,
627 }, {
628 .id = V4L2_CID_EXPOSURE_AUTO,
629 .type = V4L2_CTRL_TYPE_BOOLEAN,
630 .name = "Auto Exposure",
631 .minimum = 0,
632 .maximum = 1,
633 .step = 1,
634 .default_value = 1,
635 }
636};
637
638static int mt9m111_video_probe(struct soc_camera_device *);
639static void mt9m111_video_remove(struct soc_camera_device *);
640static int mt9m111_get_control(struct soc_camera_device *,
641 struct v4l2_control *);
642static int mt9m111_set_control(struct soc_camera_device *,
643 struct v4l2_control *);
644static int mt9m111_resume(struct soc_camera_device *icd);
645static int mt9m111_init(struct soc_camera_device *icd);
646static int mt9m111_release(struct soc_camera_device *icd);
647
648static struct soc_camera_ops mt9m111_ops = {
649 .owner = THIS_MODULE,
650 .probe = mt9m111_video_probe,
651 .remove = mt9m111_video_remove,
652 .init = mt9m111_init,
653 .resume = mt9m111_resume,
654 .release = mt9m111_release,
655 .start_capture = mt9m111_start_capture,
656 .stop_capture = mt9m111_stop_capture,
Guennadi Liakhovetski09e231b2009-03-13 06:08:20 -0300657 .set_crop = mt9m111_set_crop,
Guennadi Liakhovetskid8fac212008-12-01 09:45:21 -0300658 .set_fmt = mt9m111_set_fmt,
659 .try_fmt = mt9m111_try_fmt,
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300660 .query_bus_param = mt9m111_query_bus_param,
661 .set_bus_param = mt9m111_set_bus_param,
662 .controls = mt9m111_controls,
663 .num_controls = ARRAY_SIZE(mt9m111_controls),
664 .get_control = mt9m111_get_control,
665 .set_control = mt9m111_set_control,
666 .get_chip_id = mt9m111_get_chip_id,
667#ifdef CONFIG_VIDEO_ADV_DEBUG
668 .get_register = mt9m111_get_register,
669 .set_register = mt9m111_set_register,
670#endif
671};
672
673static int mt9m111_set_flip(struct soc_camera_device *icd, int flip, int mask)
674{
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300675 struct i2c_client *client = to_i2c_client(icd->control);
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300676 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
677 int ret;
678
679 if (mt9m111->context == HIGHPOWER) {
680 if (flip)
681 ret = reg_set(READ_MODE_B, mask);
682 else
683 ret = reg_clear(READ_MODE_B, mask);
684 } else {
685 if (flip)
686 ret = reg_set(READ_MODE_A, mask);
687 else
688 ret = reg_clear(READ_MODE_A, mask);
689 }
690
691 return ret;
692}
693
694static int mt9m111_get_global_gain(struct soc_camera_device *icd)
695{
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300696 struct i2c_client *client = to_i2c_client(icd->control);
roel kluin0f28b792008-12-17 14:01:07 -0300697 int data;
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300698
699 data = reg_read(GLOBAL_GAIN);
700 if (data >= 0)
roel kluin0f28b792008-12-17 14:01:07 -0300701 return (data & 0x2f) * (1 << ((data >> 10) & 1)) *
702 (1 << ((data >> 9) & 1));
703 return data;
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300704}
roel kluin0f28b792008-12-17 14:01:07 -0300705
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300706static int mt9m111_set_global_gain(struct soc_camera_device *icd, int gain)
707{
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300708 struct i2c_client *client = to_i2c_client(icd->control);
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300709 u16 val;
710
711 if (gain > 63 * 2 * 2)
712 return -EINVAL;
713
714 icd->gain = gain;
715 if ((gain >= 64 * 2) && (gain < 63 * 2 * 2))
716 val = (1 << 10) | (1 << 9) | (gain / 4);
717 else if ((gain >= 64) && (gain < 64 * 2))
Guennadi Liakhovetski506c6292008-08-14 12:03:49 -0300718 val = (1 << 9) | (gain / 2);
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300719 else
720 val = gain;
721
722 return reg_write(GLOBAL_GAIN, val);
723}
724
725static int mt9m111_set_autoexposure(struct soc_camera_device *icd, int on)
726{
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300727 struct i2c_client *client = to_i2c_client(icd->control);
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300728 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
729 int ret;
730
731 if (on)
732 ret = reg_set(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOEXPO_EN);
733 else
734 ret = reg_clear(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOEXPO_EN);
735
Guennadi Liakhovetski506c6292008-08-14 12:03:49 -0300736 if (!ret)
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300737 mt9m111->autoexposure = on;
738
739 return ret;
740}
Robert Jarzmik39bf3722008-12-18 11:29:05 -0300741
742static int mt9m111_set_autowhitebalance(struct soc_camera_device *icd, int on)
743{
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300744 struct i2c_client *client = to_i2c_client(icd->control);
Robert Jarzmik39bf3722008-12-18 11:29:05 -0300745 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
746 int ret;
747
748 if (on)
749 ret = reg_set(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOWHITEBAL_EN);
750 else
751 ret = reg_clear(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOWHITEBAL_EN);
752
753 if (!ret)
754 mt9m111->autowhitebalance = on;
755
756 return ret;
757}
758
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300759static int mt9m111_get_control(struct soc_camera_device *icd,
760 struct v4l2_control *ctrl)
761{
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300762 struct i2c_client *client = to_i2c_client(icd->control);
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300763 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
764 int data;
765
766 switch (ctrl->id) {
767 case V4L2_CID_VFLIP:
768 if (mt9m111->context == HIGHPOWER)
769 data = reg_read(READ_MODE_B);
770 else
771 data = reg_read(READ_MODE_A);
772
773 if (data < 0)
774 return -EIO;
775 ctrl->value = !!(data & MT9M111_RMB_MIRROR_ROWS);
776 break;
777 case V4L2_CID_HFLIP:
778 if (mt9m111->context == HIGHPOWER)
779 data = reg_read(READ_MODE_B);
780 else
781 data = reg_read(READ_MODE_A);
782
783 if (data < 0)
784 return -EIO;
785 ctrl->value = !!(data & MT9M111_RMB_MIRROR_COLS);
786 break;
787 case V4L2_CID_GAIN:
788 data = mt9m111_get_global_gain(icd);
789 if (data < 0)
790 return data;
791 ctrl->value = data;
792 break;
793 case V4L2_CID_EXPOSURE_AUTO:
794 ctrl->value = mt9m111->autoexposure;
795 break;
Robert Jarzmik39bf3722008-12-18 11:29:05 -0300796 case V4L2_CID_AUTO_WHITE_BALANCE:
797 ctrl->value = mt9m111->autowhitebalance;
798 break;
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300799 }
800 return 0;
801}
802
803static int mt9m111_set_control(struct soc_camera_device *icd,
804 struct v4l2_control *ctrl)
805{
806 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
807 const struct v4l2_queryctrl *qctrl;
Guennadi Liakhovetski506c6292008-08-14 12:03:49 -0300808 int ret;
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300809
810 qctrl = soc_camera_find_qctrl(&mt9m111_ops, ctrl->id);
811
812 if (!qctrl)
813 return -EINVAL;
814
815 switch (ctrl->id) {
816 case V4L2_CID_VFLIP:
817 mt9m111->vflip = ctrl->value;
818 ret = mt9m111_set_flip(icd, ctrl->value,
819 MT9M111_RMB_MIRROR_ROWS);
820 break;
821 case V4L2_CID_HFLIP:
822 mt9m111->hflip = ctrl->value;
823 ret = mt9m111_set_flip(icd, ctrl->value,
824 MT9M111_RMB_MIRROR_COLS);
825 break;
826 case V4L2_CID_GAIN:
827 ret = mt9m111_set_global_gain(icd, ctrl->value);
828 break;
829 case V4L2_CID_EXPOSURE_AUTO:
830 ret = mt9m111_set_autoexposure(icd, ctrl->value);
831 break;
Robert Jarzmik39bf3722008-12-18 11:29:05 -0300832 case V4L2_CID_AUTO_WHITE_BALANCE:
833 ret = mt9m111_set_autowhitebalance(icd, ctrl->value);
834 break;
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300835 default:
836 ret = -EINVAL;
837 }
838
Guennadi Liakhovetski506c6292008-08-14 12:03:49 -0300839 return ret;
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300840}
841
Harvey Harrisonba775312008-08-27 17:20:01 -0300842static int mt9m111_restore_state(struct soc_camera_device *icd)
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300843{
844 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
845
846 mt9m111_set_context(icd, mt9m111->context);
847 mt9m111_set_pixfmt(icd, mt9m111->pixfmt);
Guennadi Liakhovetski09e231b2009-03-13 06:08:20 -0300848 mt9m111_setup_rect(icd, &mt9m111->rect);
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300849 mt9m111_set_flip(icd, mt9m111->hflip, MT9M111_RMB_MIRROR_COLS);
850 mt9m111_set_flip(icd, mt9m111->vflip, MT9M111_RMB_MIRROR_ROWS);
851 mt9m111_set_global_gain(icd, icd->gain);
852 mt9m111_set_autoexposure(icd, mt9m111->autoexposure);
Robert Jarzmik39bf3722008-12-18 11:29:05 -0300853 mt9m111_set_autowhitebalance(icd, mt9m111->autowhitebalance);
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300854 return 0;
855}
856
857static int mt9m111_resume(struct soc_camera_device *icd)
858{
859 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
860 int ret = 0;
861
862 if (mt9m111->powered) {
863 ret = mt9m111_enable(icd);
Guennadi Liakhovetski506c6292008-08-14 12:03:49 -0300864 if (!ret)
865 ret = mt9m111_reset(icd);
866 if (!ret)
867 ret = mt9m111_restore_state(icd);
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300868 }
869 return ret;
870}
871
872static int mt9m111_init(struct soc_camera_device *icd)
873{
874 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
875 int ret;
876
877 mt9m111->context = HIGHPOWER;
878 ret = mt9m111_enable(icd);
Guennadi Liakhovetski506c6292008-08-14 12:03:49 -0300879 if (!ret)
880 ret = mt9m111_reset(icd);
881 if (!ret)
882 ret = mt9m111_set_context(icd, mt9m111->context);
883 if (!ret)
884 ret = mt9m111_set_autoexposure(icd, mt9m111->autoexposure);
885 if (ret)
Mike Rapoportd7f83a52008-12-18 11:44:15 -0300886 dev_err(&icd->dev, "mt9m11x init failed: %d\n", ret);
Guennadi Liakhovetski506c6292008-08-14 12:03:49 -0300887 return ret;
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300888}
889
890static int mt9m111_release(struct soc_camera_device *icd)
891{
892 int ret;
893
894 ret = mt9m111_disable(icd);
895 if (ret < 0)
Mike Rapoportd7f83a52008-12-18 11:44:15 -0300896 dev_err(&icd->dev, "mt9m11x release failed: %d\n", ret);
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300897
Guennadi Liakhovetski506c6292008-08-14 12:03:49 -0300898 return ret;
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300899}
900
901/*
902 * Interface active, can use i2c. If it fails, it can indeed mean, that
903 * this wasn't our capture interface, so, we wait for the right one
904 */
905static int mt9m111_video_probe(struct soc_camera_device *icd)
906{
Guennadi Liakhovetski9538e1c2009-04-24 12:57:01 -0300907 struct i2c_client *client = to_i2c_client(icd->control);
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300908 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
909 s32 data;
910 int ret;
911
912 /*
913 * We must have a parent by now. And it cannot be a wrong one.
914 * So this entire test is completely redundant.
915 */
916 if (!icd->dev.parent ||
917 to_soc_camera_host(icd->dev.parent)->nr != icd->iface)
918 return -ENODEV;
919
920 ret = mt9m111_enable(icd);
921 if (ret)
922 goto ei2c;
923 ret = mt9m111_reset(icd);
924 if (ret)
925 goto ei2c;
926
927 data = reg_read(CHIP_VERSION);
928
929 switch (data) {
Mike Rapoportd7f83a52008-12-18 11:44:15 -0300930 case 0x143a: /* MT9M111 */
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300931 mt9m111->model = V4L2_IDENT_MT9M111;
Mike Rapoportd7f83a52008-12-18 11:44:15 -0300932 break;
933 case 0x148c: /* MT9M112 */
934 mt9m111->model = V4L2_IDENT_MT9M112;
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300935 break;
936 default:
937 ret = -ENODEV;
938 dev_err(&icd->dev,
Mike Rapoportd7f83a52008-12-18 11:44:15 -0300939 "No MT9M11x chip detected, register read %x\n", data);
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300940 goto ei2c;
941 }
942
Mike Rapoportd7f83a52008-12-18 11:44:15 -0300943 icd->formats = mt9m111_colour_formats;
944 icd->num_formats = ARRAY_SIZE(mt9m111_colour_formats);
945
946 dev_info(&icd->dev, "Detected a MT9M11x chip ID %x\n", data);
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300947
948 ret = soc_camera_video_start(icd);
949 if (ret)
950 goto eisis;
951
952 mt9m111->autoexposure = 1;
Robert Jarzmik39bf3722008-12-18 11:29:05 -0300953 mt9m111->autowhitebalance = 1;
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300954
955 mt9m111->swap_rgb_even_odd = 1;
956 mt9m111->swap_rgb_red_blue = 1;
957
958 return 0;
959eisis:
960ei2c:
961 return ret;
962}
963
964static void mt9m111_video_remove(struct soc_camera_device *icd)
965{
966 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
967
968 dev_dbg(&icd->dev, "Video %x removed: %p, %p\n", mt9m111->client->addr,
969 mt9m111->icd.dev.parent, mt9m111->icd.vdev);
970 soc_camera_video_stop(&mt9m111->icd);
971}
972
973static int mt9m111_probe(struct i2c_client *client,
974 const struct i2c_device_id *did)
975{
976 struct mt9m111 *mt9m111;
977 struct soc_camera_device *icd;
978 struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
979 struct soc_camera_link *icl = client->dev.platform_data;
980 int ret;
981
982 if (!icl) {
Mike Rapoportd7f83a52008-12-18 11:44:15 -0300983 dev_err(&client->dev, "MT9M11x driver needs platform data\n");
Robert Jarzmik77110ab2008-08-14 12:02:51 -0300984 return -EINVAL;
985 }
986
987 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA)) {
988 dev_warn(&adapter->dev,
989 "I2C-Adapter doesn't support I2C_FUNC_SMBUS_WORD\n");
990 return -EIO;
991 }
992
993 mt9m111 = kzalloc(sizeof(struct mt9m111), GFP_KERNEL);
994 if (!mt9m111)
995 return -ENOMEM;
996
997 mt9m111->client = client;
998 i2c_set_clientdata(client, mt9m111);
999
1000 /* Second stage probe - when a capture adapter is there */
1001 icd = &mt9m111->icd;
1002 icd->ops = &mt9m111_ops;
1003 icd->control = &client->dev;
1004 icd->x_min = MT9M111_MIN_DARK_COLS;
1005 icd->y_min = MT9M111_MIN_DARK_ROWS;
1006 icd->x_current = icd->x_min;
1007 icd->y_current = icd->y_min;
1008 icd->width_min = MT9M111_MIN_DARK_ROWS;
1009 icd->width_max = MT9M111_MAX_WIDTH;
1010 icd->height_min = MT9M111_MIN_DARK_COLS;
1011 icd->height_max = MT9M111_MAX_HEIGHT;
1012 icd->y_skip_top = 0;
1013 icd->iface = icl->bus_id;
1014
1015 ret = soc_camera_device_register(icd);
1016 if (ret)
1017 goto eisdr;
1018 return 0;
1019
1020eisdr:
1021 kfree(mt9m111);
1022 return ret;
1023}
1024
1025static int mt9m111_remove(struct i2c_client *client)
1026{
1027 struct mt9m111 *mt9m111 = i2c_get_clientdata(client);
1028 soc_camera_device_unregister(&mt9m111->icd);
1029 kfree(mt9m111);
1030
1031 return 0;
1032}
1033
1034static const struct i2c_device_id mt9m111_id[] = {
1035 { "mt9m111", 0 },
1036 { }
1037};
1038MODULE_DEVICE_TABLE(i2c, mt9m111_id);
1039
1040static struct i2c_driver mt9m111_i2c_driver = {
1041 .driver = {
1042 .name = "mt9m111",
1043 },
1044 .probe = mt9m111_probe,
1045 .remove = mt9m111_remove,
1046 .id_table = mt9m111_id,
1047};
1048
1049static int __init mt9m111_mod_init(void)
1050{
1051 return i2c_add_driver(&mt9m111_i2c_driver);
1052}
1053
1054static void __exit mt9m111_mod_exit(void)
1055{
1056 i2c_del_driver(&mt9m111_i2c_driver);
1057}
1058
1059module_init(mt9m111_mod_init);
1060module_exit(mt9m111_mod_exit);
1061
Mike Rapoportd7f83a52008-12-18 11:44:15 -03001062MODULE_DESCRIPTION("Micron MT9M111/MT9M112 Camera driver");
Robert Jarzmik77110ab2008-08-14 12:02:51 -03001063MODULE_AUTHOR("Robert Jarzmik");
1064MODULE_LICENSE("GPL");