Commit | Line | Data |
---|---|---|
ccfc97bd | 1 | /* |
cb7a01ac | 2 | * drivers/media/i2c/smiapp/smiapp-core.c |
ccfc97bd SA |
3 | * |
4 | * Generic driver for SMIA/SMIA++ compliant camera modules | |
5 | * | |
6 | * Copyright (C) 2010--2012 Nokia Corporation | |
8c5dff90 | 7 | * Contact: Sakari Ailus <sakari.ailus@iki.fi> |
ccfc97bd SA |
8 | * |
9 | * Based on smiapp driver by Vimarsh Zutshi | |
10 | * Based on jt8ev1.c by Vimarsh Zutshi | |
11 | * Based on smia-sensor.c by Tuukka Toivonen <tuukkat76@gmail.com> | |
12 | * | |
13 | * This program is free software; you can redistribute it and/or | |
14 | * modify it under the terms of the GNU General Public License | |
15 | * version 2 as published by the Free Software Foundation. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, but | |
18 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
20 | * General Public License for more details. | |
ccfc97bd SA |
21 | */ |
22 | ||
2547428d | 23 | #include <linux/clk.h> |
ccfc97bd SA |
24 | #include <linux/delay.h> |
25 | #include <linux/device.h> | |
26 | #include <linux/gpio.h> | |
27 | #include <linux/module.h> | |
28 | #include <linux/regulator/consumer.h> | |
0e2a6b7f SA |
29 | #include <linux/slab.h> |
30 | #include <linux/smiapp.h> | |
ccfc97bd SA |
31 | #include <linux/v4l2-mediabus.h> |
32 | #include <media/v4l2-device.h> | |
33 | ||
34 | #include "smiapp.h" | |
35 | ||
563df3d0 SA |
36 | #define SMIAPP_ALIGN_DIM(dim, flags) \ |
37 | ((flags) & V4L2_SEL_FLAG_GE \ | |
38 | ? ALIGN((dim), 2) \ | |
ccfc97bd SA |
39 | : (dim) & ~1) |
40 | ||
41 | /* | |
42 | * smiapp_module_idents - supported camera modules | |
43 | */ | |
44 | static const struct smiapp_module_ident smiapp_module_idents[] = { | |
45 | SMIAPP_IDENT_L(0x01, 0x022b, -1, "vs6555"), | |
46 | SMIAPP_IDENT_L(0x01, 0x022e, -1, "vw6558"), | |
47 | SMIAPP_IDENT_L(0x07, 0x7698, -1, "ovm7698"), | |
48 | SMIAPP_IDENT_L(0x0b, 0x4242, -1, "smiapp-003"), | |
49 | SMIAPP_IDENT_L(0x0c, 0x208a, -1, "tcm8330md"), | |
50 | SMIAPP_IDENT_LQ(0x0c, 0x2134, -1, "tcm8500md", &smiapp_tcm8500md_quirk), | |
51 | SMIAPP_IDENT_L(0x0c, 0x213e, -1, "et8en2"), | |
52 | SMIAPP_IDENT_L(0x0c, 0x2184, -1, "tcm8580md"), | |
53 | SMIAPP_IDENT_LQ(0x0c, 0x560f, -1, "jt8ew9", &smiapp_jt8ew9_quirk), | |
54 | SMIAPP_IDENT_LQ(0x10, 0x4141, -1, "jt8ev1", &smiapp_jt8ev1_quirk), | |
55 | SMIAPP_IDENT_LQ(0x10, 0x4241, -1, "imx125es", &smiapp_imx125es_quirk), | |
56 | }; | |
57 | ||
58 | /* | |
59 | * | |
60 | * Dynamic Capability Identification | |
61 | * | |
62 | */ | |
63 | ||
64 | static int smiapp_read_frame_fmt(struct smiapp_sensor *sensor) | |
65 | { | |
66 | struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); | |
67 | u32 fmt_model_type, fmt_model_subtype, ncol_desc, nrow_desc; | |
68 | unsigned int i; | |
69 | int rval; | |
70 | int line_count = 0; | |
71 | int embedded_start = -1, embedded_end = -1; | |
72 | int image_start = 0; | |
73 | ||
1e73eea7 | 74 | rval = smiapp_read(sensor, SMIAPP_REG_U8_FRAME_FORMAT_MODEL_TYPE, |
ccfc97bd SA |
75 | &fmt_model_type); |
76 | if (rval) | |
77 | return rval; | |
78 | ||
1e73eea7 | 79 | rval = smiapp_read(sensor, SMIAPP_REG_U8_FRAME_FORMAT_MODEL_SUBTYPE, |
ccfc97bd SA |
80 | &fmt_model_subtype); |
81 | if (rval) | |
82 | return rval; | |
83 | ||
84 | ncol_desc = (fmt_model_subtype | |
85 | & SMIAPP_FRAME_FORMAT_MODEL_SUBTYPE_NCOLS_MASK) | |
86 | >> SMIAPP_FRAME_FORMAT_MODEL_SUBTYPE_NCOLS_SHIFT; | |
87 | nrow_desc = fmt_model_subtype | |
88 | & SMIAPP_FRAME_FORMAT_MODEL_SUBTYPE_NROWS_MASK; | |
89 | ||
90 | dev_dbg(&client->dev, "format_model_type %s\n", | |
91 | fmt_model_type == SMIAPP_FRAME_FORMAT_MODEL_TYPE_2BYTE | |
92 | ? "2 byte" : | |
93 | fmt_model_type == SMIAPP_FRAME_FORMAT_MODEL_TYPE_4BYTE | |
94 | ? "4 byte" : "is simply bad"); | |
95 | ||
96 | for (i = 0; i < ncol_desc + nrow_desc; i++) { | |
97 | u32 desc; | |
98 | u32 pixelcode; | |
99 | u32 pixels; | |
100 | char *which; | |
101 | char *what; | |
102 | ||
103 | if (fmt_model_type == SMIAPP_FRAME_FORMAT_MODEL_TYPE_2BYTE) { | |
104 | rval = smiapp_read( | |
1e73eea7 | 105 | sensor, |
ccfc97bd SA |
106 | SMIAPP_REG_U16_FRAME_FORMAT_DESCRIPTOR_2(i), |
107 | &desc); | |
108 | if (rval) | |
109 | return rval; | |
110 | ||
111 | pixelcode = | |
112 | (desc | |
113 | & SMIAPP_FRAME_FORMAT_DESC_2_PIXELCODE_MASK) | |
114 | >> SMIAPP_FRAME_FORMAT_DESC_2_PIXELCODE_SHIFT; | |
115 | pixels = desc & SMIAPP_FRAME_FORMAT_DESC_2_PIXELS_MASK; | |
116 | } else if (fmt_model_type | |
117 | == SMIAPP_FRAME_FORMAT_MODEL_TYPE_4BYTE) { | |
118 | rval = smiapp_read( | |
1e73eea7 | 119 | sensor, |
ccfc97bd SA |
120 | SMIAPP_REG_U32_FRAME_FORMAT_DESCRIPTOR_4(i), |
121 | &desc); | |
122 | if (rval) | |
123 | return rval; | |
124 | ||
125 | pixelcode = | |
126 | (desc | |
127 | & SMIAPP_FRAME_FORMAT_DESC_4_PIXELCODE_MASK) | |
128 | >> SMIAPP_FRAME_FORMAT_DESC_4_PIXELCODE_SHIFT; | |
129 | pixels = desc & SMIAPP_FRAME_FORMAT_DESC_4_PIXELS_MASK; | |
130 | } else { | |
131 | dev_dbg(&client->dev, | |
132 | "invalid frame format model type %d\n", | |
133 | fmt_model_type); | |
134 | return -EINVAL; | |
135 | } | |
136 | ||
137 | if (i < ncol_desc) | |
138 | which = "columns"; | |
139 | else | |
140 | which = "rows"; | |
141 | ||
142 | switch (pixelcode) { | |
143 | case SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_EMBEDDED: | |
144 | what = "embedded"; | |
145 | break; | |
146 | case SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_DUMMY: | |
147 | what = "dummy"; | |
148 | break; | |
149 | case SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_BLACK: | |
150 | what = "black"; | |
151 | break; | |
152 | case SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_DARK: | |
153 | what = "dark"; | |
154 | break; | |
155 | case SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_VISIBLE: | |
156 | what = "visible"; | |
157 | break; | |
158 | default: | |
159 | what = "invalid"; | |
160 | dev_dbg(&client->dev, "pixelcode %d\n", pixelcode); | |
161 | break; | |
162 | } | |
163 | ||
164 | dev_dbg(&client->dev, "%s pixels: %d %s\n", | |
165 | what, pixels, which); | |
166 | ||
167 | if (i < ncol_desc) | |
168 | continue; | |
169 | ||
170 | /* Handle row descriptors */ | |
171 | if (pixelcode | |
172 | == SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_EMBEDDED) { | |
173 | embedded_start = line_count; | |
174 | } else { | |
175 | if (pixelcode == SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_VISIBLE | |
176 | || pixels >= sensor->limits[SMIAPP_LIMIT_MIN_FRAME_LENGTH_LINES] / 2) | |
177 | image_start = line_count; | |
178 | if (embedded_start != -1 && embedded_end == -1) | |
179 | embedded_end = line_count; | |
180 | } | |
181 | line_count += pixels; | |
182 | } | |
183 | ||
184 | if (embedded_start == -1 || embedded_end == -1) { | |
185 | embedded_start = 0; | |
186 | embedded_end = 0; | |
187 | } | |
188 | ||
189 | dev_dbg(&client->dev, "embedded data from lines %d to %d\n", | |
190 | embedded_start, embedded_end); | |
191 | dev_dbg(&client->dev, "image data starts at line %d\n", image_start); | |
192 | ||
193 | return 0; | |
194 | } | |
195 | ||
196 | static int smiapp_pll_configure(struct smiapp_sensor *sensor) | |
197 | { | |
ccfc97bd SA |
198 | struct smiapp_pll *pll = &sensor->pll; |
199 | int rval; | |
200 | ||
201 | rval = smiapp_write( | |
e3f8bc8c | 202 | sensor, SMIAPP_REG_U16_VT_PIX_CLK_DIV, pll->vt.pix_clk_div); |
ccfc97bd SA |
203 | if (rval < 0) |
204 | return rval; | |
205 | ||
206 | rval = smiapp_write( | |
e3f8bc8c | 207 | sensor, SMIAPP_REG_U16_VT_SYS_CLK_DIV, pll->vt.sys_clk_div); |
ccfc97bd SA |
208 | if (rval < 0) |
209 | return rval; | |
210 | ||
211 | rval = smiapp_write( | |
1e73eea7 | 212 | sensor, SMIAPP_REG_U16_PRE_PLL_CLK_DIV, pll->pre_pll_clk_div); |
ccfc97bd SA |
213 | if (rval < 0) |
214 | return rval; | |
215 | ||
216 | rval = smiapp_write( | |
1e73eea7 | 217 | sensor, SMIAPP_REG_U16_PLL_MULTIPLIER, pll->pll_multiplier); |
ccfc97bd SA |
218 | if (rval < 0) |
219 | return rval; | |
220 | ||
221 | /* Lane op clock ratio does not apply here. */ | |
222 | rval = smiapp_write( | |
1e73eea7 | 223 | sensor, SMIAPP_REG_U32_REQUESTED_LINK_BIT_RATE_MBPS, |
e3f8bc8c | 224 | DIV_ROUND_UP(pll->op.sys_clk_freq_hz, 1000000 / 256 / 256)); |
ccfc97bd SA |
225 | if (rval < 0 || sensor->minfo.smiapp_profile == SMIAPP_PROFILE_0) |
226 | return rval; | |
227 | ||
228 | rval = smiapp_write( | |
e3f8bc8c | 229 | sensor, SMIAPP_REG_U16_OP_PIX_CLK_DIV, pll->op.pix_clk_div); |
ccfc97bd SA |
230 | if (rval < 0) |
231 | return rval; | |
232 | ||
233 | return smiapp_write( | |
e3f8bc8c | 234 | sensor, SMIAPP_REG_U16_OP_SYS_CLK_DIV, pll->op.sys_clk_div); |
ccfc97bd SA |
235 | } |
236 | ||
183bec80 SA |
237 | static int smiapp_pll_try(struct smiapp_sensor *sensor, |
238 | struct smiapp_pll *pll) | |
ccfc97bd SA |
239 | { |
240 | struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); | |
241 | struct smiapp_pll_limits lim = { | |
242 | .min_pre_pll_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_PRE_PLL_CLK_DIV], | |
243 | .max_pre_pll_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_PRE_PLL_CLK_DIV], | |
244 | .min_pll_ip_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_PLL_IP_FREQ_HZ], | |
245 | .max_pll_ip_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_PLL_IP_FREQ_HZ], | |
246 | .min_pll_multiplier = sensor->limits[SMIAPP_LIMIT_MIN_PLL_MULTIPLIER], | |
247 | .max_pll_multiplier = sensor->limits[SMIAPP_LIMIT_MAX_PLL_MULTIPLIER], | |
248 | .min_pll_op_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_PLL_OP_FREQ_HZ], | |
249 | .max_pll_op_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_PLL_OP_FREQ_HZ], | |
250 | ||
6ec84a28 LP |
251 | .op.min_sys_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_OP_SYS_CLK_DIV], |
252 | .op.max_sys_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_OP_SYS_CLK_DIV], | |
253 | .op.min_pix_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_OP_PIX_CLK_DIV], | |
254 | .op.max_pix_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_OP_PIX_CLK_DIV], | |
255 | .op.min_sys_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_OP_SYS_CLK_FREQ_HZ], | |
256 | .op.max_sys_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_OP_SYS_CLK_FREQ_HZ], | |
257 | .op.min_pix_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_OP_PIX_CLK_FREQ_HZ], | |
258 | .op.max_pix_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_OP_PIX_CLK_FREQ_HZ], | |
259 | ||
260 | .vt.min_sys_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_VT_SYS_CLK_DIV], | |
261 | .vt.max_sys_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_VT_SYS_CLK_DIV], | |
262 | .vt.min_pix_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_VT_PIX_CLK_DIV], | |
263 | .vt.max_pix_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_VT_PIX_CLK_DIV], | |
264 | .vt.min_sys_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_VT_SYS_CLK_FREQ_HZ], | |
265 | .vt.max_sys_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_VT_SYS_CLK_FREQ_HZ], | |
266 | .vt.min_pix_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_VT_PIX_CLK_FREQ_HZ], | |
267 | .vt.max_pix_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_VT_PIX_CLK_FREQ_HZ], | |
ccfc97bd SA |
268 | |
269 | .min_line_length_pck_bin = sensor->limits[SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK_BIN], | |
270 | .min_line_length_pck = sensor->limits[SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK], | |
271 | }; | |
183bec80 SA |
272 | |
273 | return smiapp_pll_calculate(&client->dev, &lim, pll); | |
274 | } | |
275 | ||
276 | static int smiapp_pll_update(struct smiapp_sensor *sensor) | |
277 | { | |
ccfc97bd SA |
278 | struct smiapp_pll *pll = &sensor->pll; |
279 | int rval; | |
280 | ||
ccfc97bd SA |
281 | pll->binning_horizontal = sensor->binning_horizontal; |
282 | pll->binning_vertical = sensor->binning_vertical; | |
283 | pll->link_freq = | |
284 | sensor->link_freq->qmenu_int[sensor->link_freq->val]; | |
285 | pll->scale_m = sensor->scale_m; | |
ccfc97bd SA |
286 | pll->bits_per_pixel = sensor->csi_format->compressed; |
287 | ||
183bec80 | 288 | rval = smiapp_pll_try(sensor, pll); |
ccfc97bd SA |
289 | if (rval < 0) |
290 | return rval; | |
291 | ||
a328e7e3 | 292 | __v4l2_ctrl_s_ctrl_int64(sensor->pixel_rate_parray, |
83313d9f | 293 | pll->pixel_rate_pixel_array); |
a328e7e3 | 294 | __v4l2_ctrl_s_ctrl_int64(sensor->pixel_rate_csi, pll->pixel_rate_csi); |
ccfc97bd SA |
295 | |
296 | return 0; | |
297 | } | |
298 | ||
299 | ||
300 | /* | |
301 | * | |
302 | * V4L2 Controls handling | |
303 | * | |
304 | */ | |
305 | ||
306 | static void __smiapp_update_exposure_limits(struct smiapp_sensor *sensor) | |
307 | { | |
308 | struct v4l2_ctrl *ctrl = sensor->exposure; | |
309 | int max; | |
310 | ||
311 | max = sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].height | |
312 | + sensor->vblank->val | |
313 | - sensor->limits[SMIAPP_LIMIT_COARSE_INTEGRATION_TIME_MAX_MARGIN]; | |
314 | ||
e47a81d8 | 315 | __v4l2_ctrl_modify_range(ctrl, ctrl->minimum, max, ctrl->step, max); |
ccfc97bd SA |
316 | } |
317 | ||
318 | /* | |
319 | * Order matters. | |
320 | * | |
321 | * 1. Bits-per-pixel, descending. | |
322 | * 2. Bits-per-pixel compressed, descending. | |
323 | * 3. Pixel order, same as in pixel_order_str. Formats for all four pixel | |
324 | * orders must be defined. | |
325 | */ | |
326 | static const struct smiapp_csi_data_format smiapp_csi_data_formats[] = { | |
f5fe58fd BB |
327 | { MEDIA_BUS_FMT_SGRBG12_1X12, 12, 12, SMIAPP_PIXEL_ORDER_GRBG, }, |
328 | { MEDIA_BUS_FMT_SRGGB12_1X12, 12, 12, SMIAPP_PIXEL_ORDER_RGGB, }, | |
329 | { MEDIA_BUS_FMT_SBGGR12_1X12, 12, 12, SMIAPP_PIXEL_ORDER_BGGR, }, | |
330 | { MEDIA_BUS_FMT_SGBRG12_1X12, 12, 12, SMIAPP_PIXEL_ORDER_GBRG, }, | |
331 | { MEDIA_BUS_FMT_SGRBG10_1X10, 10, 10, SMIAPP_PIXEL_ORDER_GRBG, }, | |
332 | { MEDIA_BUS_FMT_SRGGB10_1X10, 10, 10, SMIAPP_PIXEL_ORDER_RGGB, }, | |
333 | { MEDIA_BUS_FMT_SBGGR10_1X10, 10, 10, SMIAPP_PIXEL_ORDER_BGGR, }, | |
334 | { MEDIA_BUS_FMT_SGBRG10_1X10, 10, 10, SMIAPP_PIXEL_ORDER_GBRG, }, | |
335 | { MEDIA_BUS_FMT_SGRBG10_DPCM8_1X8, 10, 8, SMIAPP_PIXEL_ORDER_GRBG, }, | |
336 | { MEDIA_BUS_FMT_SRGGB10_DPCM8_1X8, 10, 8, SMIAPP_PIXEL_ORDER_RGGB, }, | |
337 | { MEDIA_BUS_FMT_SBGGR10_DPCM8_1X8, 10, 8, SMIAPP_PIXEL_ORDER_BGGR, }, | |
338 | { MEDIA_BUS_FMT_SGBRG10_DPCM8_1X8, 10, 8, SMIAPP_PIXEL_ORDER_GBRG, }, | |
339 | { MEDIA_BUS_FMT_SGRBG8_1X8, 8, 8, SMIAPP_PIXEL_ORDER_GRBG, }, | |
340 | { MEDIA_BUS_FMT_SRGGB8_1X8, 8, 8, SMIAPP_PIXEL_ORDER_RGGB, }, | |
341 | { MEDIA_BUS_FMT_SBGGR8_1X8, 8, 8, SMIAPP_PIXEL_ORDER_BGGR, }, | |
342 | { MEDIA_BUS_FMT_SGBRG8_1X8, 8, 8, SMIAPP_PIXEL_ORDER_GBRG, }, | |
ccfc97bd SA |
343 | }; |
344 | ||
345 | const char *pixel_order_str[] = { "GRBG", "RGGB", "BGGR", "GBRG" }; | |
346 | ||
347 | #define to_csi_format_idx(fmt) (((unsigned long)(fmt) \ | |
348 | - (unsigned long)smiapp_csi_data_formats) \ | |
349 | / sizeof(*smiapp_csi_data_formats)) | |
350 | ||
351 | static u32 smiapp_pixel_order(struct smiapp_sensor *sensor) | |
352 | { | |
353 | struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); | |
354 | int flip = 0; | |
355 | ||
356 | if (sensor->hflip) { | |
357 | if (sensor->hflip->val) | |
358 | flip |= SMIAPP_IMAGE_ORIENTATION_HFLIP; | |
359 | ||
360 | if (sensor->vflip->val) | |
361 | flip |= SMIAPP_IMAGE_ORIENTATION_VFLIP; | |
362 | } | |
363 | ||
364 | flip ^= sensor->hvflip_inv_mask; | |
365 | ||
366 | dev_dbg(&client->dev, "flip %d\n", flip); | |
367 | return sensor->default_pixel_order ^ flip; | |
368 | } | |
369 | ||
370 | static void smiapp_update_mbus_formats(struct smiapp_sensor *sensor) | |
371 | { | |
372 | struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); | |
373 | unsigned int csi_format_idx = | |
374 | to_csi_format_idx(sensor->csi_format) & ~3; | |
375 | unsigned int internal_csi_format_idx = | |
376 | to_csi_format_idx(sensor->internal_csi_format) & ~3; | |
377 | unsigned int pixel_order = smiapp_pixel_order(sensor); | |
378 | ||
379 | sensor->mbus_frame_fmts = | |
380 | sensor->default_mbus_frame_fmts << pixel_order; | |
381 | sensor->csi_format = | |
382 | &smiapp_csi_data_formats[csi_format_idx + pixel_order]; | |
383 | sensor->internal_csi_format = | |
384 | &smiapp_csi_data_formats[internal_csi_format_idx | |
385 | + pixel_order]; | |
386 | ||
387 | BUG_ON(max(internal_csi_format_idx, csi_format_idx) + pixel_order | |
388 | >= ARRAY_SIZE(smiapp_csi_data_formats)); | |
ccfc97bd SA |
389 | |
390 | dev_dbg(&client->dev, "new pixel order %s\n", | |
391 | pixel_order_str[pixel_order]); | |
392 | } | |
393 | ||
0e2a6b7f SA |
394 | static const char * const smiapp_test_patterns[] = { |
395 | "Disabled", | |
396 | "Solid Colour", | |
397 | "Eight Vertical Colour Bars", | |
398 | "Colour Bars With Fade to Grey", | |
399 | "Pseudorandom Sequence (PN9)", | |
400 | }; | |
401 | ||
ccfc97bd SA |
402 | static int smiapp_set_ctrl(struct v4l2_ctrl *ctrl) |
403 | { | |
404 | struct smiapp_sensor *sensor = | |
405 | container_of(ctrl->handler, struct smiapp_subdev, ctrl_handler) | |
406 | ->sensor; | |
ccfc97bd SA |
407 | u32 orient = 0; |
408 | int exposure; | |
409 | int rval; | |
410 | ||
411 | switch (ctrl->id) { | |
412 | case V4L2_CID_ANALOGUE_GAIN: | |
413 | return smiapp_write( | |
1e73eea7 | 414 | sensor, |
ccfc97bd SA |
415 | SMIAPP_REG_U16_ANALOGUE_GAIN_CODE_GLOBAL, ctrl->val); |
416 | ||
417 | case V4L2_CID_EXPOSURE: | |
418 | return smiapp_write( | |
1e73eea7 | 419 | sensor, |
ccfc97bd SA |
420 | SMIAPP_REG_U16_COARSE_INTEGRATION_TIME, ctrl->val); |
421 | ||
422 | case V4L2_CID_HFLIP: | |
423 | case V4L2_CID_VFLIP: | |
424 | if (sensor->streaming) | |
425 | return -EBUSY; | |
426 | ||
427 | if (sensor->hflip->val) | |
428 | orient |= SMIAPP_IMAGE_ORIENTATION_HFLIP; | |
429 | ||
430 | if (sensor->vflip->val) | |
431 | orient |= SMIAPP_IMAGE_ORIENTATION_VFLIP; | |
432 | ||
433 | orient ^= sensor->hvflip_inv_mask; | |
1e73eea7 | 434 | rval = smiapp_write(sensor, |
ccfc97bd SA |
435 | SMIAPP_REG_U8_IMAGE_ORIENTATION, |
436 | orient); | |
437 | if (rval < 0) | |
438 | return rval; | |
439 | ||
440 | smiapp_update_mbus_formats(sensor); | |
441 | ||
442 | return 0; | |
443 | ||
444 | case V4L2_CID_VBLANK: | |
445 | exposure = sensor->exposure->val; | |
446 | ||
447 | __smiapp_update_exposure_limits(sensor); | |
448 | ||
449 | if (exposure > sensor->exposure->maximum) { | |
450 | sensor->exposure->val = | |
451 | sensor->exposure->maximum; | |
452 | rval = smiapp_set_ctrl( | |
453 | sensor->exposure); | |
454 | if (rval < 0) | |
455 | return rval; | |
456 | } | |
457 | ||
458 | return smiapp_write( | |
1e73eea7 | 459 | sensor, SMIAPP_REG_U16_FRAME_LENGTH_LINES, |
ccfc97bd SA |
460 | sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].height |
461 | + ctrl->val); | |
462 | ||
463 | case V4L2_CID_HBLANK: | |
464 | return smiapp_write( | |
1e73eea7 | 465 | sensor, SMIAPP_REG_U16_LINE_LENGTH_PCK, |
ccfc97bd SA |
466 | sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].width |
467 | + ctrl->val); | |
468 | ||
469 | case V4L2_CID_LINK_FREQ: | |
470 | if (sensor->streaming) | |
471 | return -EBUSY; | |
472 | ||
473 | return smiapp_pll_update(sensor); | |
474 | ||
0e2a6b7f SA |
475 | case V4L2_CID_TEST_PATTERN: { |
476 | unsigned int i; | |
477 | ||
478 | for (i = 0; i < ARRAY_SIZE(sensor->test_data); i++) | |
479 | v4l2_ctrl_activate( | |
480 | sensor->test_data[i], | |
481 | ctrl->val == | |
482 | V4L2_SMIAPP_TEST_PATTERN_MODE_SOLID_COLOUR); | |
483 | ||
484 | return smiapp_write( | |
485 | sensor, SMIAPP_REG_U16_TEST_PATTERN_MODE, ctrl->val); | |
486 | } | |
487 | ||
488 | case V4L2_CID_TEST_PATTERN_RED: | |
489 | return smiapp_write( | |
490 | sensor, SMIAPP_REG_U16_TEST_DATA_RED, ctrl->val); | |
491 | ||
492 | case V4L2_CID_TEST_PATTERN_GREENR: | |
493 | return smiapp_write( | |
494 | sensor, SMIAPP_REG_U16_TEST_DATA_GREENR, ctrl->val); | |
495 | ||
496 | case V4L2_CID_TEST_PATTERN_BLUE: | |
497 | return smiapp_write( | |
498 | sensor, SMIAPP_REG_U16_TEST_DATA_BLUE, ctrl->val); | |
499 | ||
500 | case V4L2_CID_TEST_PATTERN_GREENB: | |
501 | return smiapp_write( | |
502 | sensor, SMIAPP_REG_U16_TEST_DATA_GREENB, ctrl->val); | |
503 | ||
a328e7e3 SA |
504 | case V4L2_CID_PIXEL_RATE: |
505 | /* For v4l2_ctrl_s_ctrl_int64() used internally. */ | |
506 | return 0; | |
507 | ||
ccfc97bd SA |
508 | default: |
509 | return -EINVAL; | |
510 | } | |
511 | } | |
512 | ||
513 | static const struct v4l2_ctrl_ops smiapp_ctrl_ops = { | |
514 | .s_ctrl = smiapp_set_ctrl, | |
515 | }; | |
516 | ||
517 | static int smiapp_init_controls(struct smiapp_sensor *sensor) | |
518 | { | |
519 | struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); | |
602cbcaa SA |
520 | unsigned long *valid_link_freqs = &sensor->valid_link_freqs[ |
521 | sensor->csi_format->compressed - SMIAPP_COMPRESSED_BASE]; | |
0e2a6b7f | 522 | unsigned int max, i; |
ccfc97bd SA |
523 | int rval; |
524 | ||
0e2a6b7f | 525 | rval = v4l2_ctrl_handler_init(&sensor->pixel_array->ctrl_handler, 12); |
ccfc97bd SA |
526 | if (rval) |
527 | return rval; | |
528 | sensor->pixel_array->ctrl_handler.lock = &sensor->mutex; | |
529 | ||
530 | sensor->analog_gain = v4l2_ctrl_new_std( | |
531 | &sensor->pixel_array->ctrl_handler, &smiapp_ctrl_ops, | |
532 | V4L2_CID_ANALOGUE_GAIN, | |
533 | sensor->limits[SMIAPP_LIMIT_ANALOGUE_GAIN_CODE_MIN], | |
534 | sensor->limits[SMIAPP_LIMIT_ANALOGUE_GAIN_CODE_MAX], | |
535 | max(sensor->limits[SMIAPP_LIMIT_ANALOGUE_GAIN_CODE_STEP], 1U), | |
536 | sensor->limits[SMIAPP_LIMIT_ANALOGUE_GAIN_CODE_MIN]); | |
537 | ||
538 | /* Exposure limits will be updated soon, use just something here. */ | |
539 | sensor->exposure = v4l2_ctrl_new_std( | |
540 | &sensor->pixel_array->ctrl_handler, &smiapp_ctrl_ops, | |
541 | V4L2_CID_EXPOSURE, 0, 0, 1, 0); | |
542 | ||
543 | sensor->hflip = v4l2_ctrl_new_std( | |
544 | &sensor->pixel_array->ctrl_handler, &smiapp_ctrl_ops, | |
545 | V4L2_CID_HFLIP, 0, 1, 1, 0); | |
546 | sensor->vflip = v4l2_ctrl_new_std( | |
547 | &sensor->pixel_array->ctrl_handler, &smiapp_ctrl_ops, | |
548 | V4L2_CID_VFLIP, 0, 1, 1, 0); | |
549 | ||
550 | sensor->vblank = v4l2_ctrl_new_std( | |
551 | &sensor->pixel_array->ctrl_handler, &smiapp_ctrl_ops, | |
552 | V4L2_CID_VBLANK, 0, 1, 1, 0); | |
553 | ||
554 | if (sensor->vblank) | |
555 | sensor->vblank->flags |= V4L2_CTRL_FLAG_UPDATE; | |
556 | ||
557 | sensor->hblank = v4l2_ctrl_new_std( | |
558 | &sensor->pixel_array->ctrl_handler, &smiapp_ctrl_ops, | |
559 | V4L2_CID_HBLANK, 0, 1, 1, 0); | |
560 | ||
561 | if (sensor->hblank) | |
562 | sensor->hblank->flags |= V4L2_CTRL_FLAG_UPDATE; | |
563 | ||
564 | sensor->pixel_rate_parray = v4l2_ctrl_new_std( | |
565 | &sensor->pixel_array->ctrl_handler, &smiapp_ctrl_ops, | |
0ba2aeb6 | 566 | V4L2_CID_PIXEL_RATE, 1, INT_MAX, 1, 1); |
ccfc97bd | 567 | |
0e2a6b7f SA |
568 | v4l2_ctrl_new_std_menu_items(&sensor->pixel_array->ctrl_handler, |
569 | &smiapp_ctrl_ops, V4L2_CID_TEST_PATTERN, | |
570 | ARRAY_SIZE(smiapp_test_patterns) - 1, | |
571 | 0, 0, smiapp_test_patterns); | |
572 | ||
573 | for (i = 0; i < ARRAY_SIZE(sensor->test_data); i++) { | |
574 | int max_value = (1 << sensor->csi_format->width) - 1; | |
575 | sensor->test_data[i] = | |
576 | v4l2_ctrl_new_std( | |
577 | &sensor->pixel_array->ctrl_handler, | |
578 | &smiapp_ctrl_ops, V4L2_CID_TEST_PATTERN_RED + i, | |
579 | 0, max_value, 1, max_value); | |
580 | } | |
581 | ||
ccfc97bd SA |
582 | if (sensor->pixel_array->ctrl_handler.error) { |
583 | dev_err(&client->dev, | |
584 | "pixel array controls initialization failed (%d)\n", | |
585 | sensor->pixel_array->ctrl_handler.error); | |
586 | rval = sensor->pixel_array->ctrl_handler.error; | |
587 | goto error; | |
588 | } | |
589 | ||
590 | sensor->pixel_array->sd.ctrl_handler = | |
591 | &sensor->pixel_array->ctrl_handler; | |
592 | ||
593 | v4l2_ctrl_cluster(2, &sensor->hflip); | |
594 | ||
595 | rval = v4l2_ctrl_handler_init(&sensor->src->ctrl_handler, 0); | |
596 | if (rval) | |
597 | goto error; | |
598 | sensor->src->ctrl_handler.lock = &sensor->mutex; | |
599 | ||
06b491fb | 600 | for (max = 0; sensor->platform_data->op_sys_clock[max + 1]; max++); |
ccfc97bd | 601 | |
06b491fb SA |
602 | sensor->link_freq = v4l2_ctrl_new_int_menu( |
603 | &sensor->src->ctrl_handler, &smiapp_ctrl_ops, | |
602cbcaa SA |
604 | V4L2_CID_LINK_FREQ, __fls(*valid_link_freqs), |
605 | __ffs(*valid_link_freqs), sensor->platform_data->op_sys_clock); | |
ccfc97bd SA |
606 | |
607 | sensor->pixel_rate_csi = v4l2_ctrl_new_std( | |
608 | &sensor->src->ctrl_handler, &smiapp_ctrl_ops, | |
0ba2aeb6 | 609 | V4L2_CID_PIXEL_RATE, 1, INT_MAX, 1, 1); |
ccfc97bd SA |
610 | |
611 | if (sensor->src->ctrl_handler.error) { | |
612 | dev_err(&client->dev, | |
613 | "src controls initialization failed (%d)\n", | |
614 | sensor->src->ctrl_handler.error); | |
615 | rval = sensor->src->ctrl_handler.error; | |
616 | goto error; | |
617 | } | |
618 | ||
619 | sensor->src->sd.ctrl_handler = | |
620 | &sensor->src->ctrl_handler; | |
621 | ||
622 | return 0; | |
623 | ||
624 | error: | |
625 | v4l2_ctrl_handler_free(&sensor->pixel_array->ctrl_handler); | |
626 | v4l2_ctrl_handler_free(&sensor->src->ctrl_handler); | |
627 | ||
628 | return rval; | |
629 | } | |
630 | ||
631 | static void smiapp_free_controls(struct smiapp_sensor *sensor) | |
632 | { | |
633 | unsigned int i; | |
634 | ||
635 | for (i = 0; i < sensor->ssds_used; i++) | |
636 | v4l2_ctrl_handler_free(&sensor->ssds[i].ctrl_handler); | |
637 | } | |
638 | ||
639 | static int smiapp_get_limits(struct smiapp_sensor *sensor, int const *limit, | |
640 | unsigned int n) | |
641 | { | |
642 | struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); | |
643 | unsigned int i; | |
644 | u32 val; | |
645 | int rval; | |
646 | ||
647 | for (i = 0; i < n; i++) { | |
648 | rval = smiapp_read( | |
1e73eea7 | 649 | sensor, smiapp_reg_limits[limit[i]].addr, &val); |
ccfc97bd SA |
650 | if (rval) |
651 | return rval; | |
652 | sensor->limits[limit[i]] = val; | |
393cbd8d | 653 | dev_dbg(&client->dev, "0x%8.8x \"%s\" = %u, 0x%x\n", |
ccfc97bd SA |
654 | smiapp_reg_limits[limit[i]].addr, |
655 | smiapp_reg_limits[limit[i]].what, val, val); | |
656 | } | |
657 | ||
658 | return 0; | |
659 | } | |
660 | ||
661 | static int smiapp_get_all_limits(struct smiapp_sensor *sensor) | |
662 | { | |
663 | unsigned int i; | |
664 | int rval; | |
665 | ||
666 | for (i = 0; i < SMIAPP_LIMIT_LAST; i++) { | |
667 | rval = smiapp_get_limits(sensor, &i, 1); | |
668 | if (rval < 0) | |
669 | return rval; | |
670 | } | |
671 | ||
672 | if (sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN] == 0) | |
673 | smiapp_replace_limit(sensor, SMIAPP_LIMIT_SCALER_N_MIN, 16); | |
674 | ||
675 | return 0; | |
676 | } | |
677 | ||
678 | static int smiapp_get_limits_binning(struct smiapp_sensor *sensor) | |
679 | { | |
3de886e0 | 680 | struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); |
ccfc97bd SA |
681 | static u32 const limits[] = { |
682 | SMIAPP_LIMIT_MIN_FRAME_LENGTH_LINES_BIN, | |
683 | SMIAPP_LIMIT_MAX_FRAME_LENGTH_LINES_BIN, | |
684 | SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK_BIN, | |
685 | SMIAPP_LIMIT_MAX_LINE_LENGTH_PCK_BIN, | |
686 | SMIAPP_LIMIT_MIN_LINE_BLANKING_PCK_BIN, | |
687 | SMIAPP_LIMIT_FINE_INTEGRATION_TIME_MIN_BIN, | |
688 | SMIAPP_LIMIT_FINE_INTEGRATION_TIME_MAX_MARGIN_BIN, | |
689 | }; | |
690 | static u32 const limits_replace[] = { | |
691 | SMIAPP_LIMIT_MIN_FRAME_LENGTH_LINES, | |
692 | SMIAPP_LIMIT_MAX_FRAME_LENGTH_LINES, | |
693 | SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK, | |
694 | SMIAPP_LIMIT_MAX_LINE_LENGTH_PCK, | |
695 | SMIAPP_LIMIT_MIN_LINE_BLANKING_PCK, | |
696 | SMIAPP_LIMIT_FINE_INTEGRATION_TIME_MIN, | |
697 | SMIAPP_LIMIT_FINE_INTEGRATION_TIME_MAX_MARGIN, | |
698 | }; | |
3de886e0 SA |
699 | unsigned int i; |
700 | int rval; | |
ccfc97bd SA |
701 | |
702 | if (sensor->limits[SMIAPP_LIMIT_BINNING_CAPABILITY] == | |
703 | SMIAPP_BINNING_CAPABILITY_NO) { | |
ccfc97bd SA |
704 | for (i = 0; i < ARRAY_SIZE(limits); i++) |
705 | sensor->limits[limits[i]] = | |
706 | sensor->limits[limits_replace[i]]; | |
707 | ||
708 | return 0; | |
709 | } | |
710 | ||
3de886e0 SA |
711 | rval = smiapp_get_limits(sensor, limits, ARRAY_SIZE(limits)); |
712 | if (rval < 0) | |
713 | return rval; | |
714 | ||
715 | /* | |
716 | * Sanity check whether the binning limits are valid. If not, | |
717 | * use the non-binning ones. | |
718 | */ | |
719 | if (sensor->limits[SMIAPP_LIMIT_MIN_FRAME_LENGTH_LINES_BIN] | |
720 | && sensor->limits[SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK_BIN] | |
721 | && sensor->limits[SMIAPP_LIMIT_MIN_LINE_BLANKING_PCK_BIN]) | |
722 | return 0; | |
723 | ||
724 | for (i = 0; i < ARRAY_SIZE(limits); i++) { | |
725 | dev_dbg(&client->dev, | |
726 | "replace limit 0x%8.8x \"%s\" = %d, 0x%x\n", | |
727 | smiapp_reg_limits[limits[i]].addr, | |
728 | smiapp_reg_limits[limits[i]].what, | |
729 | sensor->limits[limits_replace[i]], | |
730 | sensor->limits[limits_replace[i]]); | |
731 | sensor->limits[limits[i]] = | |
732 | sensor->limits[limits_replace[i]]; | |
733 | } | |
734 | ||
735 | return 0; | |
ccfc97bd SA |
736 | } |
737 | ||
738 | static int smiapp_get_mbus_formats(struct smiapp_sensor *sensor) | |
739 | { | |
740 | struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); | |
38a833c7 | 741 | struct smiapp_pll *pll = &sensor->pll; |
ccfc97bd SA |
742 | unsigned int type, n; |
743 | unsigned int i, pixel_order; | |
744 | int rval; | |
745 | ||
746 | rval = smiapp_read( | |
1e73eea7 | 747 | sensor, SMIAPP_REG_U8_DATA_FORMAT_MODEL_TYPE, &type); |
ccfc97bd SA |
748 | if (rval) |
749 | return rval; | |
750 | ||
751 | dev_dbg(&client->dev, "data_format_model_type %d\n", type); | |
752 | ||
1e73eea7 | 753 | rval = smiapp_read(sensor, SMIAPP_REG_U8_PIXEL_ORDER, |
ccfc97bd SA |
754 | &pixel_order); |
755 | if (rval) | |
756 | return rval; | |
757 | ||
758 | if (pixel_order >= ARRAY_SIZE(pixel_order_str)) { | |
759 | dev_dbg(&client->dev, "bad pixel order %d\n", pixel_order); | |
760 | return -EINVAL; | |
761 | } | |
762 | ||
763 | dev_dbg(&client->dev, "pixel order %d (%s)\n", pixel_order, | |
764 | pixel_order_str[pixel_order]); | |
765 | ||
766 | switch (type) { | |
767 | case SMIAPP_DATA_FORMAT_MODEL_TYPE_NORMAL: | |
768 | n = SMIAPP_DATA_FORMAT_MODEL_TYPE_NORMAL_N; | |
769 | break; | |
770 | case SMIAPP_DATA_FORMAT_MODEL_TYPE_EXTENDED: | |
771 | n = SMIAPP_DATA_FORMAT_MODEL_TYPE_EXTENDED_N; | |
772 | break; | |
773 | default: | |
774 | return -EINVAL; | |
775 | } | |
776 | ||
777 | sensor->default_pixel_order = pixel_order; | |
778 | sensor->mbus_frame_fmts = 0; | |
779 | ||
780 | for (i = 0; i < n; i++) { | |
781 | unsigned int fmt, j; | |
782 | ||
783 | rval = smiapp_read( | |
1e73eea7 | 784 | sensor, |
ccfc97bd SA |
785 | SMIAPP_REG_U16_DATA_FORMAT_DESCRIPTOR(i), &fmt); |
786 | if (rval) | |
787 | return rval; | |
788 | ||
48cb4a5d SA |
789 | dev_dbg(&client->dev, "%u: bpp %u, compressed %u\n", |
790 | i, fmt >> 8, (u8)fmt); | |
ccfc97bd SA |
791 | |
792 | for (j = 0; j < ARRAY_SIZE(smiapp_csi_data_formats); j++) { | |
793 | const struct smiapp_csi_data_format *f = | |
794 | &smiapp_csi_data_formats[j]; | |
795 | ||
796 | if (f->pixel_order != SMIAPP_PIXEL_ORDER_GRBG) | |
797 | continue; | |
798 | ||
799 | if (f->width != fmt >> 8 || f->compressed != (u8)fmt) | |
800 | continue; | |
801 | ||
802 | dev_dbg(&client->dev, "jolly good! %d\n", j); | |
803 | ||
804 | sensor->default_mbus_frame_fmts |= 1 << j; | |
ccfc97bd SA |
805 | } |
806 | } | |
807 | ||
38a833c7 SA |
808 | /* Figure out which BPP values can be used with which formats. */ |
809 | pll->binning_horizontal = 1; | |
810 | pll->binning_vertical = 1; | |
811 | pll->scale_m = sensor->scale_m; | |
812 | ||
813 | for (i = 0; i < ARRAY_SIZE(smiapp_csi_data_formats); i++) { | |
814 | const struct smiapp_csi_data_format *f = | |
815 | &smiapp_csi_data_formats[i]; | |
816 | unsigned long *valid_link_freqs = | |
817 | &sensor->valid_link_freqs[ | |
818 | f->compressed - SMIAPP_COMPRESSED_BASE]; | |
819 | unsigned int j; | |
820 | ||
821 | BUG_ON(f->compressed < SMIAPP_COMPRESSED_BASE); | |
822 | BUG_ON(f->compressed > SMIAPP_COMPRESSED_MAX); | |
823 | ||
824 | if (!(sensor->default_mbus_frame_fmts & 1 << i)) | |
825 | continue; | |
826 | ||
827 | pll->bits_per_pixel = f->compressed; | |
828 | ||
829 | for (j = 0; sensor->platform_data->op_sys_clock[j]; j++) { | |
830 | pll->link_freq = sensor->platform_data->op_sys_clock[j]; | |
831 | ||
832 | rval = smiapp_pll_try(sensor, pll); | |
833 | dev_dbg(&client->dev, "link freq %u Hz, bpp %u %s\n", | |
834 | pll->link_freq, pll->bits_per_pixel, | |
835 | rval ? "not ok" : "ok"); | |
836 | if (rval) | |
837 | continue; | |
838 | ||
839 | set_bit(j, valid_link_freqs); | |
840 | } | |
cd78b6af SA |
841 | |
842 | if (!*valid_link_freqs) { | |
843 | dev_info(&client->dev, | |
844 | "no valid link frequencies for %u bpp\n", | |
845 | f->compressed); | |
846 | sensor->default_mbus_frame_fmts &= ~BIT(i); | |
847 | continue; | |
848 | } | |
849 | ||
850 | if (!sensor->csi_format | |
851 | || f->width > sensor->csi_format->width | |
852 | || (f->width == sensor->csi_format->width | |
853 | && f->compressed > sensor->csi_format->compressed)) { | |
854 | sensor->csi_format = f; | |
855 | sensor->internal_csi_format = f; | |
ccfc97bd SA |
856 | } |
857 | } | |
858 | ||
859 | if (!sensor->csi_format) { | |
860 | dev_err(&client->dev, "no supported mbus code found\n"); | |
861 | return -EINVAL; | |
862 | } | |
863 | ||
864 | smiapp_update_mbus_formats(sensor); | |
865 | ||
866 | return 0; | |
867 | } | |
868 | ||
869 | static void smiapp_update_blanking(struct smiapp_sensor *sensor) | |
870 | { | |
871 | struct v4l2_ctrl *vblank = sensor->vblank; | |
872 | struct v4l2_ctrl *hblank = sensor->hblank; | |
e47a81d8 | 873 | int min, max; |
ccfc97bd | 874 | |
e47a81d8 SA |
875 | min = max_t(int, |
876 | sensor->limits[SMIAPP_LIMIT_MIN_FRAME_BLANKING_LINES], | |
877 | sensor->limits[SMIAPP_LIMIT_MIN_FRAME_LENGTH_LINES_BIN] - | |
878 | sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].height); | |
879 | max = sensor->limits[SMIAPP_LIMIT_MAX_FRAME_LENGTH_LINES_BIN] - | |
ccfc97bd SA |
880 | sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].height; |
881 | ||
e47a81d8 SA |
882 | __v4l2_ctrl_modify_range(vblank, min, max, vblank->step, min); |
883 | ||
884 | min = max_t(int, | |
885 | sensor->limits[SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK_BIN] - | |
886 | sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].width, | |
887 | sensor->limits[SMIAPP_LIMIT_MIN_LINE_BLANKING_PCK_BIN]); | |
888 | max = sensor->limits[SMIAPP_LIMIT_MAX_LINE_LENGTH_PCK_BIN] - | |
ccfc97bd SA |
889 | sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].width; |
890 | ||
e47a81d8 | 891 | __v4l2_ctrl_modify_range(hblank, min, max, hblank->step, min); |
ccfc97bd SA |
892 | |
893 | __smiapp_update_exposure_limits(sensor); | |
894 | } | |
895 | ||
896 | static int smiapp_update_mode(struct smiapp_sensor *sensor) | |
897 | { | |
898 | struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); | |
899 | unsigned int binning_mode; | |
900 | int rval; | |
901 | ||
902 | dev_dbg(&client->dev, "frame size: %dx%d\n", | |
903 | sensor->src->crop[SMIAPP_PAD_SRC].width, | |
904 | sensor->src->crop[SMIAPP_PAD_SRC].height); | |
905 | dev_dbg(&client->dev, "csi format width: %d\n", | |
906 | sensor->csi_format->width); | |
907 | ||
908 | /* Binning has to be set up here; it affects limits */ | |
909 | if (sensor->binning_horizontal == 1 && | |
910 | sensor->binning_vertical == 1) { | |
911 | binning_mode = 0; | |
912 | } else { | |
913 | u8 binning_type = | |
914 | (sensor->binning_horizontal << 4) | |
915 | | sensor->binning_vertical; | |
916 | ||
917 | rval = smiapp_write( | |
1e73eea7 | 918 | sensor, SMIAPP_REG_U8_BINNING_TYPE, binning_type); |
ccfc97bd SA |
919 | if (rval < 0) |
920 | return rval; | |
921 | ||
922 | binning_mode = 1; | |
923 | } | |
1e73eea7 | 924 | rval = smiapp_write(sensor, SMIAPP_REG_U8_BINNING_MODE, binning_mode); |
ccfc97bd SA |
925 | if (rval < 0) |
926 | return rval; | |
927 | ||
928 | /* Get updated limits due to binning */ | |
929 | rval = smiapp_get_limits_binning(sensor); | |
930 | if (rval < 0) | |
931 | return rval; | |
932 | ||
933 | rval = smiapp_pll_update(sensor); | |
934 | if (rval < 0) | |
935 | return rval; | |
936 | ||
937 | /* Output from pixel array, including blanking */ | |
938 | smiapp_update_blanking(sensor); | |
939 | ||
940 | dev_dbg(&client->dev, "vblank\t\t%d\n", sensor->vblank->val); | |
941 | dev_dbg(&client->dev, "hblank\t\t%d\n", sensor->hblank->val); | |
942 | ||
943 | dev_dbg(&client->dev, "real timeperframe\t100/%d\n", | |
83313d9f | 944 | sensor->pll.pixel_rate_pixel_array / |
ccfc97bd SA |
945 | ((sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].width |
946 | + sensor->hblank->val) * | |
947 | (sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].height | |
948 | + sensor->vblank->val) / 100)); | |
949 | ||
950 | return 0; | |
951 | } | |
952 | ||
953 | /* | |
954 | * | |
955 | * SMIA++ NVM handling | |
956 | * | |
957 | */ | |
958 | static int smiapp_read_nvm(struct smiapp_sensor *sensor, | |
959 | unsigned char *nvm) | |
960 | { | |
ccfc97bd | 961 | u32 i, s, p, np, v; |
04582947 | 962 | int rval = 0, rval2; |
ccfc97bd SA |
963 | |
964 | np = sensor->nvm_size / SMIAPP_NVM_PAGE_SIZE; | |
965 | for (p = 0; p < np; p++) { | |
966 | rval = smiapp_write( | |
1e73eea7 | 967 | sensor, |
ccfc97bd SA |
968 | SMIAPP_REG_U8_DATA_TRANSFER_IF_1_PAGE_SELECT, p); |
969 | if (rval) | |
970 | goto out; | |
971 | ||
1e73eea7 | 972 | rval = smiapp_write(sensor, |
ccfc97bd SA |
973 | SMIAPP_REG_U8_DATA_TRANSFER_IF_1_CTRL, |
974 | SMIAPP_DATA_TRANSFER_IF_1_CTRL_EN | | |
975 | SMIAPP_DATA_TRANSFER_IF_1_CTRL_RD_EN); | |
976 | if (rval) | |
977 | goto out; | |
978 | ||
979 | for (i = 0; i < 1000; i++) { | |
980 | rval = smiapp_read( | |
1e73eea7 | 981 | sensor, |
ccfc97bd SA |
982 | SMIAPP_REG_U8_DATA_TRANSFER_IF_1_STATUS, &s); |
983 | ||
984 | if (rval) | |
985 | goto out; | |
986 | ||
987 | if (s & SMIAPP_DATA_TRANSFER_IF_1_STATUS_RD_READY) | |
988 | break; | |
989 | ||
990 | if (--i == 0) { | |
991 | rval = -ETIMEDOUT; | |
992 | goto out; | |
993 | } | |
994 | ||
995 | } | |
996 | ||
997 | for (i = 0; i < SMIAPP_NVM_PAGE_SIZE; i++) { | |
998 | rval = smiapp_read( | |
1e73eea7 | 999 | sensor, |
ccfc97bd SA |
1000 | SMIAPP_REG_U8_DATA_TRANSFER_IF_1_DATA_0 + i, |
1001 | &v); | |
1002 | if (rval) | |
1003 | goto out; | |
1004 | ||
1005 | *nvm++ = v; | |
1006 | } | |
1007 | } | |
1008 | ||
1009 | out: | |
1e73eea7 | 1010 | rval2 = smiapp_write(sensor, SMIAPP_REG_U8_DATA_TRANSFER_IF_1_CTRL, 0); |
ccfc97bd SA |
1011 | if (rval < 0) |
1012 | return rval; | |
1013 | else | |
1014 | return rval2; | |
1015 | } | |
1016 | ||
1017 | /* | |
1018 | * | |
1019 | * SMIA++ CCI address control | |
1020 | * | |
1021 | */ | |
1022 | static int smiapp_change_cci_addr(struct smiapp_sensor *sensor) | |
1023 | { | |
1024 | struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); | |
1025 | int rval; | |
1026 | u32 val; | |
1027 | ||
1028 | client->addr = sensor->platform_data->i2c_addr_dfl; | |
1029 | ||
1e73eea7 | 1030 | rval = smiapp_write(sensor, |
ccfc97bd SA |
1031 | SMIAPP_REG_U8_CCI_ADDRESS_CONTROL, |
1032 | sensor->platform_data->i2c_addr_alt << 1); | |
1033 | if (rval) | |
1034 | return rval; | |
1035 | ||
1036 | client->addr = sensor->platform_data->i2c_addr_alt; | |
1037 | ||
1038 | /* verify addr change went ok */ | |
1e73eea7 | 1039 | rval = smiapp_read(sensor, SMIAPP_REG_U8_CCI_ADDRESS_CONTROL, &val); |
ccfc97bd SA |
1040 | if (rval) |
1041 | return rval; | |
1042 | ||
1043 | if (val != sensor->platform_data->i2c_addr_alt << 1) | |
1044 | return -ENODEV; | |
1045 | ||
1046 | return 0; | |
1047 | } | |
1048 | ||
1049 | /* | |
1050 | * | |
1051 | * SMIA++ Mode Control | |
1052 | * | |
1053 | */ | |
1054 | static int smiapp_setup_flash_strobe(struct smiapp_sensor *sensor) | |
1055 | { | |
ccfc97bd SA |
1056 | struct smiapp_flash_strobe_parms *strobe_setup; |
1057 | unsigned int ext_freq = sensor->platform_data->ext_clk; | |
1058 | u32 tmp; | |
1059 | u32 strobe_adjustment; | |
1060 | u32 strobe_width_high_rs; | |
1061 | int rval; | |
1062 | ||
1063 | strobe_setup = sensor->platform_data->strobe_setup; | |
1064 | ||
1065 | /* | |
1066 | * How to calculate registers related to strobe length. Please | |
1067 | * do not change, or if you do at least know what you're | |
1068 | * doing. :-) | |
1069 | * | |
8c5dff90 | 1070 | * Sakari Ailus <sakari.ailus@iki.fi> 2010-10-25 |
ccfc97bd SA |
1071 | * |
1072 | * flash_strobe_length [us] / 10^6 = (tFlash_strobe_width_ctrl | |
1073 | * / EXTCLK freq [Hz]) * flash_strobe_adjustment | |
1074 | * | |
1075 | * tFlash_strobe_width_ctrl E N, [1 - 0xffff] | |
1076 | * flash_strobe_adjustment E N, [1 - 0xff] | |
1077 | * | |
1078 | * The formula above is written as below to keep it on one | |
1079 | * line: | |
1080 | * | |
1081 | * l / 10^6 = w / e * a | |
1082 | * | |
1083 | * Let's mark w * a by x: | |
1084 | * | |
1085 | * x = w * a | |
1086 | * | |
1087 | * Thus, we get: | |
1088 | * | |
1089 | * x = l * e / 10^6 | |
1090 | * | |
1091 | * The strobe width must be at least as long as requested, | |
1092 | * thus rounding upwards is needed. | |
1093 | * | |
1094 | * x = (l * e + 10^6 - 1) / 10^6 | |
1095 | * ----------------------------- | |
1096 | * | |
1097 | * Maximum possible accuracy is wanted at all times. Thus keep | |
1098 | * a as small as possible. | |
1099 | * | |
1100 | * Calculate a, assuming maximum w, with rounding upwards: | |
1101 | * | |
1102 | * a = (x + (2^16 - 1) - 1) / (2^16 - 1) | |
1103 | * ------------------------------------- | |
1104 | * | |
1105 | * Thus, we also get w, with that a, with rounding upwards: | |
1106 | * | |
1107 | * w = (x + a - 1) / a | |
1108 | * ------------------- | |
1109 | * | |
1110 | * To get limits: | |
1111 | * | |
1112 | * x E [1, (2^16 - 1) * (2^8 - 1)] | |
1113 | * | |
1114 | * Substituting maximum x to the original formula (with rounding), | |
1115 | * the maximum l is thus | |
1116 | * | |
1117 | * (2^16 - 1) * (2^8 - 1) * 10^6 = l * e + 10^6 - 1 | |
1118 | * | |
1119 | * l = (10^6 * (2^16 - 1) * (2^8 - 1) - 10^6 + 1) / e | |
1120 | * -------------------------------------------------- | |
1121 | * | |
1122 | * flash_strobe_length must be clamped between 1 and | |
1123 | * (10^6 * (2^16 - 1) * (2^8 - 1) - 10^6 + 1) / EXTCLK freq. | |
1124 | * | |
1125 | * Then, | |
1126 | * | |
1127 | * flash_strobe_adjustment = ((flash_strobe_length * | |
1128 | * EXTCLK freq + 10^6 - 1) / 10^6 + (2^16 - 1) - 1) / (2^16 - 1) | |
1129 | * | |
1130 | * tFlash_strobe_width_ctrl = ((flash_strobe_length * | |
1131 | * EXTCLK freq + 10^6 - 1) / 10^6 + | |
1132 | * flash_strobe_adjustment - 1) / flash_strobe_adjustment | |
1133 | */ | |
1134 | tmp = div_u64(1000000ULL * ((1 << 16) - 1) * ((1 << 8) - 1) - | |
1135 | 1000000 + 1, ext_freq); | |
1136 | strobe_setup->strobe_width_high_us = | |
1137 | clamp_t(u32, strobe_setup->strobe_width_high_us, 1, tmp); | |
1138 | ||
1139 | tmp = div_u64(((u64)strobe_setup->strobe_width_high_us * (u64)ext_freq + | |
1140 | 1000000 - 1), 1000000ULL); | |
1141 | strobe_adjustment = (tmp + (1 << 16) - 1 - 1) / ((1 << 16) - 1); | |
1142 | strobe_width_high_rs = (tmp + strobe_adjustment - 1) / | |
1143 | strobe_adjustment; | |
1144 | ||
1e73eea7 | 1145 | rval = smiapp_write(sensor, SMIAPP_REG_U8_FLASH_MODE_RS, |
ccfc97bd SA |
1146 | strobe_setup->mode); |
1147 | if (rval < 0) | |
1148 | goto out; | |
1149 | ||
1e73eea7 | 1150 | rval = smiapp_write(sensor, SMIAPP_REG_U8_FLASH_STROBE_ADJUSTMENT, |
ccfc97bd SA |
1151 | strobe_adjustment); |
1152 | if (rval < 0) | |
1153 | goto out; | |
1154 | ||
1155 | rval = smiapp_write( | |
1e73eea7 | 1156 | sensor, SMIAPP_REG_U16_TFLASH_STROBE_WIDTH_HIGH_RS_CTRL, |
ccfc97bd SA |
1157 | strobe_width_high_rs); |
1158 | if (rval < 0) | |
1159 | goto out; | |
1160 | ||
1e73eea7 | 1161 | rval = smiapp_write(sensor, SMIAPP_REG_U16_TFLASH_STROBE_DELAY_RS_CTRL, |
ccfc97bd SA |
1162 | strobe_setup->strobe_delay); |
1163 | if (rval < 0) | |
1164 | goto out; | |
1165 | ||
1e73eea7 | 1166 | rval = smiapp_write(sensor, SMIAPP_REG_U16_FLASH_STROBE_START_POINT, |
ccfc97bd SA |
1167 | strobe_setup->stobe_start_point); |
1168 | if (rval < 0) | |
1169 | goto out; | |
1170 | ||
1e73eea7 | 1171 | rval = smiapp_write(sensor, SMIAPP_REG_U8_FLASH_TRIGGER_RS, |
ccfc97bd SA |
1172 | strobe_setup->trigger); |
1173 | ||
1174 | out: | |
1175 | sensor->platform_data->strobe_setup->trigger = 0; | |
1176 | ||
1177 | return rval; | |
1178 | } | |
1179 | ||
1180 | /* ----------------------------------------------------------------------------- | |
1181 | * Power management | |
1182 | */ | |
1183 | ||
1184 | static int smiapp_power_on(struct smiapp_sensor *sensor) | |
1185 | { | |
1186 | struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); | |
1187 | unsigned int sleep; | |
1188 | int rval; | |
1189 | ||
1190 | rval = regulator_enable(sensor->vana); | |
1191 | if (rval) { | |
1192 | dev_err(&client->dev, "failed to enable vana regulator\n"); | |
1193 | return rval; | |
1194 | } | |
1195 | usleep_range(1000, 1000); | |
1196 | ||
2547428d SA |
1197 | if (sensor->platform_data->set_xclk) |
1198 | rval = sensor->platform_data->set_xclk( | |
1199 | &sensor->src->sd, sensor->platform_data->ext_clk); | |
1200 | else | |
d0aae004 | 1201 | rval = clk_prepare_enable(sensor->ext_clk); |
ccfc97bd | 1202 | if (rval < 0) { |
d0aae004 | 1203 | dev_dbg(&client->dev, "failed to enable xclk\n"); |
ccfc97bd SA |
1204 | goto out_xclk_fail; |
1205 | } | |
1206 | usleep_range(1000, 1000); | |
1207 | ||
9945374e | 1208 | if (gpio_is_valid(sensor->platform_data->xshutdown)) |
ccfc97bd SA |
1209 | gpio_set_value(sensor->platform_data->xshutdown, 1); |
1210 | ||
1211 | sleep = SMIAPP_RESET_DELAY(sensor->platform_data->ext_clk); | |
1212 | usleep_range(sleep, sleep); | |
1213 | ||
1214 | /* | |
1215 | * Failures to respond to the address change command have been noticed. | |
1216 | * Those failures seem to be caused by the sensor requiring a longer | |
1217 | * boot time than advertised. An additional 10ms delay seems to work | |
1218 | * around the issue, but the SMIA++ I2C write retry hack makes the delay | |
1219 | * unnecessary. The failures need to be investigated to find a proper | |
1220 | * fix, and a delay will likely need to be added here if the I2C write | |
1221 | * retry hack is reverted before the root cause of the boot time issue | |
1222 | * is found. | |
1223 | */ | |
1224 | ||
1225 | if (sensor->platform_data->i2c_addr_alt) { | |
1226 | rval = smiapp_change_cci_addr(sensor); | |
1227 | if (rval) { | |
1228 | dev_err(&client->dev, "cci address change error\n"); | |
1229 | goto out_cci_addr_fail; | |
1230 | } | |
1231 | } | |
1232 | ||
1e73eea7 | 1233 | rval = smiapp_write(sensor, SMIAPP_REG_U8_SOFTWARE_RESET, |
ccfc97bd SA |
1234 | SMIAPP_SOFTWARE_RESET); |
1235 | if (rval < 0) { | |
1236 | dev_err(&client->dev, "software reset failed\n"); | |
1237 | goto out_cci_addr_fail; | |
1238 | } | |
1239 | ||
1240 | if (sensor->platform_data->i2c_addr_alt) { | |
1241 | rval = smiapp_change_cci_addr(sensor); | |
1242 | if (rval) { | |
1243 | dev_err(&client->dev, "cci address change error\n"); | |
1244 | goto out_cci_addr_fail; | |
1245 | } | |
1246 | } | |
1247 | ||
1e73eea7 | 1248 | rval = smiapp_write(sensor, SMIAPP_REG_U16_COMPRESSION_MODE, |
ccfc97bd SA |
1249 | SMIAPP_COMPRESSION_MODE_SIMPLE_PREDICTOR); |
1250 | if (rval) { | |
1251 | dev_err(&client->dev, "compression mode set failed\n"); | |
1252 | goto out_cci_addr_fail; | |
1253 | } | |
1254 | ||
1255 | rval = smiapp_write( | |
1e73eea7 | 1256 | sensor, SMIAPP_REG_U16_EXTCLK_FREQUENCY_MHZ, |
ccfc97bd SA |
1257 | sensor->platform_data->ext_clk / (1000000 / (1 << 8))); |
1258 | if (rval) { | |
1259 | dev_err(&client->dev, "extclk frequency set failed\n"); | |
1260 | goto out_cci_addr_fail; | |
1261 | } | |
1262 | ||
1e73eea7 | 1263 | rval = smiapp_write(sensor, SMIAPP_REG_U8_CSI_LANE_MODE, |
ccfc97bd SA |
1264 | sensor->platform_data->lanes - 1); |
1265 | if (rval) { | |
1266 | dev_err(&client->dev, "csi lane mode set failed\n"); | |
1267 | goto out_cci_addr_fail; | |
1268 | } | |
1269 | ||
1e73eea7 | 1270 | rval = smiapp_write(sensor, SMIAPP_REG_U8_FAST_STANDBY_CTRL, |
ccfc97bd SA |
1271 | SMIAPP_FAST_STANDBY_CTRL_IMMEDIATE); |
1272 | if (rval) { | |
1273 | dev_err(&client->dev, "fast standby set failed\n"); | |
1274 | goto out_cci_addr_fail; | |
1275 | } | |
1276 | ||
1e73eea7 | 1277 | rval = smiapp_write(sensor, SMIAPP_REG_U8_CSI_SIGNALLING_MODE, |
ccfc97bd SA |
1278 | sensor->platform_data->csi_signalling_mode); |
1279 | if (rval) { | |
1280 | dev_err(&client->dev, "csi signalling mode set failed\n"); | |
1281 | goto out_cci_addr_fail; | |
1282 | } | |
1283 | ||
1284 | /* DPHY control done by sensor based on requested link rate */ | |
1e73eea7 | 1285 | rval = smiapp_write(sensor, SMIAPP_REG_U8_DPHY_CTRL, |
ccfc97bd SA |
1286 | SMIAPP_DPHY_CTRL_UI); |
1287 | if (rval < 0) | |
1288 | return rval; | |
1289 | ||
1290 | rval = smiapp_call_quirk(sensor, post_poweron); | |
1291 | if (rval) { | |
1292 | dev_err(&client->dev, "post_poweron quirks failed\n"); | |
1293 | goto out_cci_addr_fail; | |
1294 | } | |
1295 | ||
1296 | /* Are we still initialising...? If yes, return here. */ | |
1297 | if (!sensor->pixel_array) | |
1298 | return 0; | |
1299 | ||
1300 | rval = v4l2_ctrl_handler_setup( | |
1301 | &sensor->pixel_array->ctrl_handler); | |
1302 | if (rval) | |
1303 | goto out_cci_addr_fail; | |
1304 | ||
1305 | rval = v4l2_ctrl_handler_setup(&sensor->src->ctrl_handler); | |
1306 | if (rval) | |
1307 | goto out_cci_addr_fail; | |
1308 | ||
1309 | mutex_lock(&sensor->mutex); | |
1310 | rval = smiapp_update_mode(sensor); | |
1311 | mutex_unlock(&sensor->mutex); | |
1312 | if (rval < 0) | |
1313 | goto out_cci_addr_fail; | |
1314 | ||
1315 | return 0; | |
1316 | ||
1317 | out_cci_addr_fail: | |
9945374e | 1318 | if (gpio_is_valid(sensor->platform_data->xshutdown)) |
ccfc97bd | 1319 | gpio_set_value(sensor->platform_data->xshutdown, 0); |
2547428d SA |
1320 | if (sensor->platform_data->set_xclk) |
1321 | sensor->platform_data->set_xclk(&sensor->src->sd, 0); | |
1322 | else | |
d0aae004 | 1323 | clk_disable_unprepare(sensor->ext_clk); |
ccfc97bd SA |
1324 | |
1325 | out_xclk_fail: | |
1326 | regulator_disable(sensor->vana); | |
1327 | return rval; | |
1328 | } | |
1329 | ||
1330 | static void smiapp_power_off(struct smiapp_sensor *sensor) | |
1331 | { | |
ccfc97bd SA |
1332 | /* |
1333 | * Currently power/clock to lens are enable/disabled separately | |
1334 | * but they are essentially the same signals. So if the sensor is | |
1335 | * powered off while the lens is powered on the sensor does not | |
1336 | * really see a power off and next time the cci address change | |
1337 | * will fail. So do a soft reset explicitly here. | |
1338 | */ | |
1339 | if (sensor->platform_data->i2c_addr_alt) | |
1e73eea7 | 1340 | smiapp_write(sensor, |
ccfc97bd SA |
1341 | SMIAPP_REG_U8_SOFTWARE_RESET, |
1342 | SMIAPP_SOFTWARE_RESET); | |
1343 | ||
9945374e | 1344 | if (gpio_is_valid(sensor->platform_data->xshutdown)) |
ccfc97bd | 1345 | gpio_set_value(sensor->platform_data->xshutdown, 0); |
2547428d SA |
1346 | if (sensor->platform_data->set_xclk) |
1347 | sensor->platform_data->set_xclk(&sensor->src->sd, 0); | |
1348 | else | |
d0aae004 | 1349 | clk_disable_unprepare(sensor->ext_clk); |
ccfc97bd SA |
1350 | usleep_range(5000, 5000); |
1351 | regulator_disable(sensor->vana); | |
06e916b7 | 1352 | sensor->streaming = false; |
ccfc97bd SA |
1353 | } |
1354 | ||
1355 | static int smiapp_set_power(struct v4l2_subdev *subdev, int on) | |
1356 | { | |
1357 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
1358 | int ret = 0; | |
1359 | ||
1360 | mutex_lock(&sensor->power_mutex); | |
1361 | ||
58e43d90 | 1362 | if (on && !sensor->power_count) { |
ccfc97bd SA |
1363 | /* Power on and perform initialisation. */ |
1364 | ret = smiapp_power_on(sensor); | |
1365 | if (ret < 0) | |
1366 | goto out; | |
58e43d90 | 1367 | } else if (!on && sensor->power_count == 1) { |
ccfc97bd SA |
1368 | smiapp_power_off(sensor); |
1369 | } | |
1370 | ||
1371 | /* Update the power count. */ | |
1372 | sensor->power_count += on ? 1 : -1; | |
1373 | WARN_ON(sensor->power_count < 0); | |
1374 | ||
1375 | out: | |
1376 | mutex_unlock(&sensor->power_mutex); | |
1377 | return ret; | |
1378 | } | |
1379 | ||
1380 | /* ----------------------------------------------------------------------------- | |
1381 | * Video stream management | |
1382 | */ | |
1383 | ||
1384 | static int smiapp_start_streaming(struct smiapp_sensor *sensor) | |
1385 | { | |
1386 | struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); | |
1387 | int rval; | |
1388 | ||
1389 | mutex_lock(&sensor->mutex); | |
1390 | ||
1e73eea7 | 1391 | rval = smiapp_write(sensor, SMIAPP_REG_U16_CSI_DATA_FORMAT, |
ccfc97bd SA |
1392 | (sensor->csi_format->width << 8) | |
1393 | sensor->csi_format->compressed); | |
1394 | if (rval) | |
1395 | goto out; | |
1396 | ||
1397 | rval = smiapp_pll_configure(sensor); | |
1398 | if (rval) | |
1399 | goto out; | |
1400 | ||
1401 | /* Analog crop start coordinates */ | |
1e73eea7 | 1402 | rval = smiapp_write(sensor, SMIAPP_REG_U16_X_ADDR_START, |
ccfc97bd SA |
1403 | sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].left); |
1404 | if (rval < 0) | |
1405 | goto out; | |
1406 | ||
1e73eea7 | 1407 | rval = smiapp_write(sensor, SMIAPP_REG_U16_Y_ADDR_START, |
ccfc97bd SA |
1408 | sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].top); |
1409 | if (rval < 0) | |
1410 | goto out; | |
1411 | ||
1412 | /* Analog crop end coordinates */ | |
1413 | rval = smiapp_write( | |
1e73eea7 | 1414 | sensor, SMIAPP_REG_U16_X_ADDR_END, |
ccfc97bd SA |
1415 | sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].left |
1416 | + sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].width - 1); | |
1417 | if (rval < 0) | |
1418 | goto out; | |
1419 | ||
1420 | rval = smiapp_write( | |
1e73eea7 | 1421 | sensor, SMIAPP_REG_U16_Y_ADDR_END, |
ccfc97bd SA |
1422 | sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].top |
1423 | + sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].height - 1); | |
1424 | if (rval < 0) | |
1425 | goto out; | |
1426 | ||
1427 | /* | |
1428 | * Output from pixel array, including blanking, is set using | |
1429 | * controls below. No need to set here. | |
1430 | */ | |
1431 | ||
1432 | /* Digital crop */ | |
1433 | if (sensor->limits[SMIAPP_LIMIT_DIGITAL_CROP_CAPABILITY] | |
1434 | == SMIAPP_DIGITAL_CROP_CAPABILITY_INPUT_CROP) { | |
1435 | rval = smiapp_write( | |
1e73eea7 | 1436 | sensor, SMIAPP_REG_U16_DIGITAL_CROP_X_OFFSET, |
ccfc97bd SA |
1437 | sensor->scaler->crop[SMIAPP_PAD_SINK].left); |
1438 | if (rval < 0) | |
1439 | goto out; | |
1440 | ||
1441 | rval = smiapp_write( | |
1e73eea7 | 1442 | sensor, SMIAPP_REG_U16_DIGITAL_CROP_Y_OFFSET, |
ccfc97bd SA |
1443 | sensor->scaler->crop[SMIAPP_PAD_SINK].top); |
1444 | if (rval < 0) | |
1445 | goto out; | |
1446 | ||
1447 | rval = smiapp_write( | |
1e73eea7 | 1448 | sensor, SMIAPP_REG_U16_DIGITAL_CROP_IMAGE_WIDTH, |
ccfc97bd SA |
1449 | sensor->scaler->crop[SMIAPP_PAD_SINK].width); |
1450 | if (rval < 0) | |
1451 | goto out; | |
1452 | ||
1453 | rval = smiapp_write( | |
1e73eea7 | 1454 | sensor, SMIAPP_REG_U16_DIGITAL_CROP_IMAGE_HEIGHT, |
ccfc97bd SA |
1455 | sensor->scaler->crop[SMIAPP_PAD_SINK].height); |
1456 | if (rval < 0) | |
1457 | goto out; | |
1458 | } | |
1459 | ||
1460 | /* Scaling */ | |
1461 | if (sensor->limits[SMIAPP_LIMIT_SCALING_CAPABILITY] | |
1462 | != SMIAPP_SCALING_CAPABILITY_NONE) { | |
1e73eea7 | 1463 | rval = smiapp_write(sensor, SMIAPP_REG_U16_SCALING_MODE, |
ccfc97bd SA |
1464 | sensor->scaling_mode); |
1465 | if (rval < 0) | |
1466 | goto out; | |
1467 | ||
1e73eea7 | 1468 | rval = smiapp_write(sensor, SMIAPP_REG_U16_SCALE_M, |
ccfc97bd SA |
1469 | sensor->scale_m); |
1470 | if (rval < 0) | |
1471 | goto out; | |
1472 | } | |
1473 | ||
1474 | /* Output size from sensor */ | |
1e73eea7 | 1475 | rval = smiapp_write(sensor, SMIAPP_REG_U16_X_OUTPUT_SIZE, |
ccfc97bd SA |
1476 | sensor->src->crop[SMIAPP_PAD_SRC].width); |
1477 | if (rval < 0) | |
1478 | goto out; | |
1e73eea7 | 1479 | rval = smiapp_write(sensor, SMIAPP_REG_U16_Y_OUTPUT_SIZE, |
ccfc97bd SA |
1480 | sensor->src->crop[SMIAPP_PAD_SRC].height); |
1481 | if (rval < 0) | |
1482 | goto out; | |
1483 | ||
1484 | if ((sensor->flash_capability & | |
1485 | (SMIAPP_FLASH_MODE_CAPABILITY_SINGLE_STROBE | | |
1486 | SMIAPP_FLASH_MODE_CAPABILITY_MULTIPLE_STROBE)) && | |
1487 | sensor->platform_data->strobe_setup != NULL && | |
1488 | sensor->platform_data->strobe_setup->trigger != 0) { | |
1489 | rval = smiapp_setup_flash_strobe(sensor); | |
1490 | if (rval) | |
1491 | goto out; | |
1492 | } | |
1493 | ||
1494 | rval = smiapp_call_quirk(sensor, pre_streamon); | |
1495 | if (rval) { | |
1496 | dev_err(&client->dev, "pre_streamon quirks failed\n"); | |
1497 | goto out; | |
1498 | } | |
1499 | ||
1e73eea7 | 1500 | rval = smiapp_write(sensor, SMIAPP_REG_U8_MODE_SELECT, |
ccfc97bd SA |
1501 | SMIAPP_MODE_SELECT_STREAMING); |
1502 | ||
1503 | out: | |
1504 | mutex_unlock(&sensor->mutex); | |
1505 | ||
1506 | return rval; | |
1507 | } | |
1508 | ||
1509 | static int smiapp_stop_streaming(struct smiapp_sensor *sensor) | |
1510 | { | |
1511 | struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); | |
1512 | int rval; | |
1513 | ||
1514 | mutex_lock(&sensor->mutex); | |
1e73eea7 | 1515 | rval = smiapp_write(sensor, SMIAPP_REG_U8_MODE_SELECT, |
ccfc97bd SA |
1516 | SMIAPP_MODE_SELECT_SOFTWARE_STANDBY); |
1517 | if (rval) | |
1518 | goto out; | |
1519 | ||
1520 | rval = smiapp_call_quirk(sensor, post_streamoff); | |
1521 | if (rval) | |
1522 | dev_err(&client->dev, "post_streamoff quirks failed\n"); | |
1523 | ||
1524 | out: | |
1525 | mutex_unlock(&sensor->mutex); | |
1526 | return rval; | |
1527 | } | |
1528 | ||
1529 | /* ----------------------------------------------------------------------------- | |
1530 | * V4L2 subdev video operations | |
1531 | */ | |
1532 | ||
1533 | static int smiapp_set_stream(struct v4l2_subdev *subdev, int enable) | |
1534 | { | |
1535 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
1536 | int rval; | |
1537 | ||
1538 | if (sensor->streaming == enable) | |
1539 | return 0; | |
1540 | ||
1541 | if (enable) { | |
06e916b7 | 1542 | sensor->streaming = true; |
ccfc97bd SA |
1543 | rval = smiapp_start_streaming(sensor); |
1544 | if (rval < 0) | |
06e916b7 | 1545 | sensor->streaming = false; |
ccfc97bd SA |
1546 | } else { |
1547 | rval = smiapp_stop_streaming(sensor); | |
06e916b7 | 1548 | sensor->streaming = false; |
ccfc97bd SA |
1549 | } |
1550 | ||
1551 | return rval; | |
1552 | } | |
1553 | ||
1554 | static int smiapp_enum_mbus_code(struct v4l2_subdev *subdev, | |
1555 | struct v4l2_subdev_fh *fh, | |
1556 | struct v4l2_subdev_mbus_code_enum *code) | |
1557 | { | |
1558 | struct i2c_client *client = v4l2_get_subdevdata(subdev); | |
1559 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
1560 | unsigned int i; | |
1561 | int idx = -1; | |
1562 | int rval = -EINVAL; | |
1563 | ||
1564 | mutex_lock(&sensor->mutex); | |
1565 | ||
1566 | dev_err(&client->dev, "subdev %s, pad %d, index %d\n", | |
1567 | subdev->name, code->pad, code->index); | |
1568 | ||
1569 | if (subdev != &sensor->src->sd || code->pad != SMIAPP_PAD_SRC) { | |
1570 | if (code->index) | |
1571 | goto out; | |
1572 | ||
1573 | code->code = sensor->internal_csi_format->code; | |
1574 | rval = 0; | |
1575 | goto out; | |
1576 | } | |
1577 | ||
1578 | for (i = 0; i < ARRAY_SIZE(smiapp_csi_data_formats); i++) { | |
1579 | if (sensor->mbus_frame_fmts & (1 << i)) | |
1580 | idx++; | |
1581 | ||
1582 | if (idx == code->index) { | |
1583 | code->code = smiapp_csi_data_formats[i].code; | |
1584 | dev_err(&client->dev, "found index %d, i %d, code %x\n", | |
1585 | code->index, i, code->code); | |
1586 | rval = 0; | |
1587 | break; | |
1588 | } | |
1589 | } | |
1590 | ||
1591 | out: | |
1592 | mutex_unlock(&sensor->mutex); | |
1593 | ||
1594 | return rval; | |
1595 | } | |
1596 | ||
1597 | static u32 __smiapp_get_mbus_code(struct v4l2_subdev *subdev, | |
1598 | unsigned int pad) | |
1599 | { | |
1600 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
1601 | ||
1602 | if (subdev == &sensor->src->sd && pad == SMIAPP_PAD_SRC) | |
1603 | return sensor->csi_format->code; | |
1604 | else | |
1605 | return sensor->internal_csi_format->code; | |
1606 | } | |
1607 | ||
1608 | static int __smiapp_get_format(struct v4l2_subdev *subdev, | |
1609 | struct v4l2_subdev_fh *fh, | |
1610 | struct v4l2_subdev_format *fmt) | |
1611 | { | |
1612 | struct smiapp_subdev *ssd = to_smiapp_subdev(subdev); | |
1613 | ||
1614 | if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { | |
1615 | fmt->format = *v4l2_subdev_get_try_format(fh, fmt->pad); | |
1616 | } else { | |
1617 | struct v4l2_rect *r; | |
1618 | ||
1619 | if (fmt->pad == ssd->source_pad) | |
1620 | r = &ssd->crop[ssd->source_pad]; | |
1621 | else | |
1622 | r = &ssd->sink_fmt; | |
1623 | ||
1624 | fmt->format.code = __smiapp_get_mbus_code(subdev, fmt->pad); | |
1625 | fmt->format.width = r->width; | |
1626 | fmt->format.height = r->height; | |
7ed0b291 | 1627 | fmt->format.field = V4L2_FIELD_NONE; |
ccfc97bd SA |
1628 | } |
1629 | ||
1630 | return 0; | |
1631 | } | |
1632 | ||
1633 | static int smiapp_get_format(struct v4l2_subdev *subdev, | |
1634 | struct v4l2_subdev_fh *fh, | |
1635 | struct v4l2_subdev_format *fmt) | |
1636 | { | |
1637 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
1638 | int rval; | |
1639 | ||
1640 | mutex_lock(&sensor->mutex); | |
1641 | rval = __smiapp_get_format(subdev, fh, fmt); | |
1642 | mutex_unlock(&sensor->mutex); | |
1643 | ||
1644 | return rval; | |
1645 | } | |
1646 | ||
1647 | static void smiapp_get_crop_compose(struct v4l2_subdev *subdev, | |
1648 | struct v4l2_subdev_fh *fh, | |
1649 | struct v4l2_rect **crops, | |
1650 | struct v4l2_rect **comps, int which) | |
1651 | { | |
1652 | struct smiapp_subdev *ssd = to_smiapp_subdev(subdev); | |
1653 | unsigned int i; | |
1654 | ||
1655 | if (which == V4L2_SUBDEV_FORMAT_ACTIVE) { | |
1656 | if (crops) | |
1657 | for (i = 0; i < subdev->entity.num_pads; i++) | |
1658 | crops[i] = &ssd->crop[i]; | |
1659 | if (comps) | |
1660 | *comps = &ssd->compose; | |
1661 | } else { | |
1662 | if (crops) { | |
1663 | for (i = 0; i < subdev->entity.num_pads; i++) { | |
1664 | crops[i] = v4l2_subdev_get_try_crop(fh, i); | |
1665 | BUG_ON(!crops[i]); | |
1666 | } | |
1667 | } | |
1668 | if (comps) { | |
1669 | *comps = v4l2_subdev_get_try_compose(fh, | |
1670 | SMIAPP_PAD_SINK); | |
1671 | BUG_ON(!*comps); | |
1672 | } | |
1673 | } | |
1674 | } | |
1675 | ||
1676 | /* Changes require propagation only on sink pad. */ | |
1677 | static void smiapp_propagate(struct v4l2_subdev *subdev, | |
1678 | struct v4l2_subdev_fh *fh, int which, | |
1679 | int target) | |
1680 | { | |
1681 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
1682 | struct smiapp_subdev *ssd = to_smiapp_subdev(subdev); | |
1683 | struct v4l2_rect *comp, *crops[SMIAPP_PADS]; | |
1684 | ||
1685 | smiapp_get_crop_compose(subdev, fh, crops, &comp, which); | |
1686 | ||
1687 | switch (target) { | |
5689b288 | 1688 | case V4L2_SEL_TGT_CROP: |
ccfc97bd SA |
1689 | comp->width = crops[SMIAPP_PAD_SINK]->width; |
1690 | comp->height = crops[SMIAPP_PAD_SINK]->height; | |
1691 | if (which == V4L2_SUBDEV_FORMAT_ACTIVE) { | |
1692 | if (ssd == sensor->scaler) { | |
1693 | sensor->scale_m = | |
1694 | sensor->limits[ | |
1695 | SMIAPP_LIMIT_SCALER_N_MIN]; | |
1696 | sensor->scaling_mode = | |
1697 | SMIAPP_SCALING_MODE_NONE; | |
1698 | } else if (ssd == sensor->binner) { | |
1699 | sensor->binning_horizontal = 1; | |
1700 | sensor->binning_vertical = 1; | |
1701 | } | |
1702 | } | |
1703 | /* Fall through */ | |
5689b288 | 1704 | case V4L2_SEL_TGT_COMPOSE: |
ccfc97bd SA |
1705 | *crops[SMIAPP_PAD_SRC] = *comp; |
1706 | break; | |
1707 | default: | |
1708 | BUG(); | |
1709 | } | |
1710 | } | |
1711 | ||
1712 | static const struct smiapp_csi_data_format | |
1713 | *smiapp_validate_csi_data_format(struct smiapp_sensor *sensor, u32 code) | |
1714 | { | |
1715 | const struct smiapp_csi_data_format *csi_format = sensor->csi_format; | |
1716 | unsigned int i; | |
1717 | ||
1718 | for (i = 0; i < ARRAY_SIZE(smiapp_csi_data_formats); i++) { | |
1719 | if (sensor->mbus_frame_fmts & (1 << i) | |
1720 | && smiapp_csi_data_formats[i].code == code) | |
1721 | return &smiapp_csi_data_formats[i]; | |
1722 | } | |
1723 | ||
1724 | return csi_format; | |
1725 | } | |
1726 | ||
e91cbeb2 SA |
1727 | static int smiapp_set_format_source(struct v4l2_subdev *subdev, |
1728 | struct v4l2_subdev_fh *fh, | |
1729 | struct v4l2_subdev_format *fmt) | |
ccfc97bd SA |
1730 | { |
1731 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
e91cbeb2 SA |
1732 | const struct smiapp_csi_data_format *csi_format, |
1733 | *old_csi_format = sensor->csi_format; | |
602cbcaa | 1734 | unsigned long *valid_link_freqs; |
e91cbeb2 SA |
1735 | u32 code = fmt->format.code; |
1736 | unsigned int i; | |
1737 | int rval; | |
ccfc97bd | 1738 | |
e91cbeb2 SA |
1739 | rval = __smiapp_get_format(subdev, fh, fmt); |
1740 | if (rval) | |
1741 | return rval; | |
ccfc97bd SA |
1742 | |
1743 | /* | |
1744 | * Media bus code is changeable on src subdev's source pad. On | |
1745 | * other source pads we just get format here. | |
1746 | */ | |
e91cbeb2 SA |
1747 | if (subdev != &sensor->src->sd) |
1748 | return 0; | |
ccfc97bd | 1749 | |
e91cbeb2 | 1750 | csi_format = smiapp_validate_csi_data_format(sensor, code); |
0e2a6b7f | 1751 | |
e91cbeb2 | 1752 | fmt->format.code = csi_format->code; |
0e2a6b7f | 1753 | |
e91cbeb2 SA |
1754 | if (fmt->which != V4L2_SUBDEV_FORMAT_ACTIVE) |
1755 | return 0; | |
ccfc97bd | 1756 | |
e91cbeb2 | 1757 | sensor->csi_format = csi_format; |
0e2a6b7f | 1758 | |
e91cbeb2 | 1759 | if (csi_format->width != old_csi_format->width) |
0e2a6b7f | 1760 | for (i = 0; i < ARRAY_SIZE(sensor->test_data); i++) |
e91cbeb2 SA |
1761 | __v4l2_ctrl_modify_range( |
1762 | sensor->test_data[i], 0, | |
1763 | (1 << csi_format->width) - 1, 1, 0); | |
0e2a6b7f | 1764 | |
602cbcaa | 1765 | if (csi_format->compressed == old_csi_format->compressed) |
0e2a6b7f | 1766 | return 0; |
602cbcaa SA |
1767 | |
1768 | valid_link_freqs = | |
1769 | &sensor->valid_link_freqs[sensor->csi_format->compressed | |
1770 | - SMIAPP_COMPRESSED_BASE]; | |
1771 | ||
1772 | __v4l2_ctrl_modify_range( | |
1773 | sensor->link_freq, 0, | |
1774 | __fls(*valid_link_freqs), ~*valid_link_freqs, | |
1775 | __ffs(*valid_link_freqs)); | |
1776 | ||
373fbbce | 1777 | return smiapp_pll_update(sensor); |
e91cbeb2 SA |
1778 | } |
1779 | ||
1780 | static int smiapp_set_format(struct v4l2_subdev *subdev, | |
1781 | struct v4l2_subdev_fh *fh, | |
1782 | struct v4l2_subdev_format *fmt) | |
1783 | { | |
1784 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
1785 | struct smiapp_subdev *ssd = to_smiapp_subdev(subdev); | |
1786 | struct v4l2_rect *crops[SMIAPP_PADS]; | |
1787 | ||
1788 | mutex_lock(&sensor->mutex); | |
1789 | ||
1790 | if (fmt->pad == ssd->source_pad) { | |
1791 | int rval; | |
1792 | ||
1793 | rval = smiapp_set_format_source(subdev, fh, fmt); | |
1794 | ||
1795 | mutex_unlock(&sensor->mutex); | |
1796 | ||
1797 | return rval; | |
ccfc97bd SA |
1798 | } |
1799 | ||
1800 | /* Sink pad. Width and height are changeable here. */ | |
1801 | fmt->format.code = __smiapp_get_mbus_code(subdev, fmt->pad); | |
1802 | fmt->format.width &= ~1; | |
1803 | fmt->format.height &= ~1; | |
7ed0b291 | 1804 | fmt->format.field = V4L2_FIELD_NONE; |
ccfc97bd SA |
1805 | |
1806 | fmt->format.width = | |
1807 | clamp(fmt->format.width, | |
1808 | sensor->limits[SMIAPP_LIMIT_MIN_X_OUTPUT_SIZE], | |
1809 | sensor->limits[SMIAPP_LIMIT_MAX_X_OUTPUT_SIZE]); | |
1810 | fmt->format.height = | |
1811 | clamp(fmt->format.height, | |
1812 | sensor->limits[SMIAPP_LIMIT_MIN_Y_OUTPUT_SIZE], | |
1813 | sensor->limits[SMIAPP_LIMIT_MAX_Y_OUTPUT_SIZE]); | |
1814 | ||
1815 | smiapp_get_crop_compose(subdev, fh, crops, NULL, fmt->which); | |
1816 | ||
1817 | crops[ssd->sink_pad]->left = 0; | |
1818 | crops[ssd->sink_pad]->top = 0; | |
1819 | crops[ssd->sink_pad]->width = fmt->format.width; | |
1820 | crops[ssd->sink_pad]->height = fmt->format.height; | |
1821 | if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) | |
1822 | ssd->sink_fmt = *crops[ssd->sink_pad]; | |
1823 | smiapp_propagate(subdev, fh, fmt->which, | |
5689b288 | 1824 | V4L2_SEL_TGT_CROP); |
ccfc97bd SA |
1825 | |
1826 | mutex_unlock(&sensor->mutex); | |
1827 | ||
1828 | return 0; | |
1829 | } | |
1830 | ||
1831 | /* | |
1832 | * Calculate goodness of scaled image size compared to expected image | |
1833 | * size and flags provided. | |
1834 | */ | |
1835 | #define SCALING_GOODNESS 100000 | |
1836 | #define SCALING_GOODNESS_EXTREME 100000000 | |
1837 | static int scaling_goodness(struct v4l2_subdev *subdev, int w, int ask_w, | |
1838 | int h, int ask_h, u32 flags) | |
1839 | { | |
1840 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
1841 | struct i2c_client *client = v4l2_get_subdevdata(subdev); | |
1842 | int val = 0; | |
1843 | ||
1844 | w &= ~1; | |
1845 | ask_w &= ~1; | |
1846 | h &= ~1; | |
1847 | ask_h &= ~1; | |
1848 | ||
563df3d0 | 1849 | if (flags & V4L2_SEL_FLAG_GE) { |
ccfc97bd SA |
1850 | if (w < ask_w) |
1851 | val -= SCALING_GOODNESS; | |
1852 | if (h < ask_h) | |
1853 | val -= SCALING_GOODNESS; | |
1854 | } | |
1855 | ||
563df3d0 | 1856 | if (flags & V4L2_SEL_FLAG_LE) { |
ccfc97bd SA |
1857 | if (w > ask_w) |
1858 | val -= SCALING_GOODNESS; | |
1859 | if (h > ask_h) | |
1860 | val -= SCALING_GOODNESS; | |
1861 | } | |
1862 | ||
1863 | val -= abs(w - ask_w); | |
1864 | val -= abs(h - ask_h); | |
1865 | ||
1866 | if (w < sensor->limits[SMIAPP_LIMIT_MIN_X_OUTPUT_SIZE]) | |
1867 | val -= SCALING_GOODNESS_EXTREME; | |
1868 | ||
1869 | dev_dbg(&client->dev, "w %d ask_w %d h %d ask_h %d goodness %d\n", | |
1870 | w, ask_h, h, ask_h, val); | |
1871 | ||
1872 | return val; | |
1873 | } | |
1874 | ||
1875 | static void smiapp_set_compose_binner(struct v4l2_subdev *subdev, | |
1876 | struct v4l2_subdev_fh *fh, | |
1877 | struct v4l2_subdev_selection *sel, | |
1878 | struct v4l2_rect **crops, | |
1879 | struct v4l2_rect *comp) | |
1880 | { | |
1881 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
1882 | unsigned int i; | |
1883 | unsigned int binh = 1, binv = 1; | |
aca6bf54 | 1884 | int best = scaling_goodness( |
ccfc97bd SA |
1885 | subdev, |
1886 | crops[SMIAPP_PAD_SINK]->width, sel->r.width, | |
1887 | crops[SMIAPP_PAD_SINK]->height, sel->r.height, sel->flags); | |
1888 | ||
1889 | for (i = 0; i < sensor->nbinning_subtypes; i++) { | |
1890 | int this = scaling_goodness( | |
1891 | subdev, | |
1892 | crops[SMIAPP_PAD_SINK]->width | |
1893 | / sensor->binning_subtypes[i].horizontal, | |
1894 | sel->r.width, | |
1895 | crops[SMIAPP_PAD_SINK]->height | |
1896 | / sensor->binning_subtypes[i].vertical, | |
1897 | sel->r.height, sel->flags); | |
1898 | ||
1899 | if (this > best) { | |
1900 | binh = sensor->binning_subtypes[i].horizontal; | |
1901 | binv = sensor->binning_subtypes[i].vertical; | |
1902 | best = this; | |
1903 | } | |
1904 | } | |
1905 | if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE) { | |
1906 | sensor->binning_vertical = binv; | |
1907 | sensor->binning_horizontal = binh; | |
1908 | } | |
1909 | ||
1910 | sel->r.width = (crops[SMIAPP_PAD_SINK]->width / binh) & ~1; | |
1911 | sel->r.height = (crops[SMIAPP_PAD_SINK]->height / binv) & ~1; | |
1912 | } | |
1913 | ||
1914 | /* | |
1915 | * Calculate best scaling ratio and mode for given output resolution. | |
1916 | * | |
1917 | * Try all of these: horizontal ratio, vertical ratio and smallest | |
1918 | * size possible (horizontally). | |
1919 | * | |
1920 | * Also try whether horizontal scaler or full scaler gives a better | |
1921 | * result. | |
1922 | */ | |
1923 | static void smiapp_set_compose_scaler(struct v4l2_subdev *subdev, | |
1924 | struct v4l2_subdev_fh *fh, | |
1925 | struct v4l2_subdev_selection *sel, | |
1926 | struct v4l2_rect **crops, | |
1927 | struct v4l2_rect *comp) | |
1928 | { | |
1929 | struct i2c_client *client = v4l2_get_subdevdata(subdev); | |
1930 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
1931 | u32 min, max, a, b, max_m; | |
1932 | u32 scale_m = sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN]; | |
1933 | int mode = SMIAPP_SCALING_MODE_HORIZONTAL; | |
1934 | u32 try[4]; | |
1935 | u32 ntry = 0; | |
1936 | unsigned int i; | |
1937 | int best = INT_MIN; | |
1938 | ||
1939 | sel->r.width = min_t(unsigned int, sel->r.width, | |
1940 | crops[SMIAPP_PAD_SINK]->width); | |
1941 | sel->r.height = min_t(unsigned int, sel->r.height, | |
1942 | crops[SMIAPP_PAD_SINK]->height); | |
1943 | ||
1944 | a = crops[SMIAPP_PAD_SINK]->width | |
1945 | * sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN] / sel->r.width; | |
1946 | b = crops[SMIAPP_PAD_SINK]->height | |
1947 | * sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN] / sel->r.height; | |
1948 | max_m = crops[SMIAPP_PAD_SINK]->width | |
1949 | * sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN] | |
1950 | / sensor->limits[SMIAPP_LIMIT_MIN_X_OUTPUT_SIZE]; | |
1951 | ||
7be5c289 AS |
1952 | a = clamp(a, sensor->limits[SMIAPP_LIMIT_SCALER_M_MIN], |
1953 | sensor->limits[SMIAPP_LIMIT_SCALER_M_MAX]); | |
1954 | b = clamp(b, sensor->limits[SMIAPP_LIMIT_SCALER_M_MIN], | |
1955 | sensor->limits[SMIAPP_LIMIT_SCALER_M_MAX]); | |
1956 | max_m = clamp(max_m, sensor->limits[SMIAPP_LIMIT_SCALER_M_MIN], | |
1957 | sensor->limits[SMIAPP_LIMIT_SCALER_M_MAX]); | |
ccfc97bd SA |
1958 | |
1959 | dev_dbg(&client->dev, "scaling: a %d b %d max_m %d\n", a, b, max_m); | |
1960 | ||
1961 | min = min(max_m, min(a, b)); | |
1962 | max = min(max_m, max(a, b)); | |
1963 | ||
1964 | try[ntry] = min; | |
1965 | ntry++; | |
1966 | if (min != max) { | |
1967 | try[ntry] = max; | |
1968 | ntry++; | |
1969 | } | |
1970 | if (max != max_m) { | |
1971 | try[ntry] = min + 1; | |
1972 | ntry++; | |
1973 | if (min != max) { | |
1974 | try[ntry] = max + 1; | |
1975 | ntry++; | |
1976 | } | |
1977 | } | |
1978 | ||
1979 | for (i = 0; i < ntry; i++) { | |
1980 | int this = scaling_goodness( | |
1981 | subdev, | |
1982 | crops[SMIAPP_PAD_SINK]->width | |
1983 | / try[i] | |
1984 | * sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN], | |
1985 | sel->r.width, | |
1986 | crops[SMIAPP_PAD_SINK]->height, | |
1987 | sel->r.height, | |
1988 | sel->flags); | |
1989 | ||
1990 | dev_dbg(&client->dev, "trying factor %d (%d)\n", try[i], i); | |
1991 | ||
1992 | if (this > best) { | |
1993 | scale_m = try[i]; | |
1994 | mode = SMIAPP_SCALING_MODE_HORIZONTAL; | |
1995 | best = this; | |
1996 | } | |
1997 | ||
1998 | if (sensor->limits[SMIAPP_LIMIT_SCALING_CAPABILITY] | |
1999 | == SMIAPP_SCALING_CAPABILITY_HORIZONTAL) | |
2000 | continue; | |
2001 | ||
2002 | this = scaling_goodness( | |
2003 | subdev, crops[SMIAPP_PAD_SINK]->width | |
2004 | / try[i] | |
2005 | * sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN], | |
2006 | sel->r.width, | |
2007 | crops[SMIAPP_PAD_SINK]->height | |
2008 | / try[i] | |
2009 | * sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN], | |
2010 | sel->r.height, | |
2011 | sel->flags); | |
2012 | ||
2013 | if (this > best) { | |
2014 | scale_m = try[i]; | |
2015 | mode = SMIAPP_SCALING_MODE_BOTH; | |
2016 | best = this; | |
2017 | } | |
2018 | } | |
2019 | ||
2020 | sel->r.width = | |
2021 | (crops[SMIAPP_PAD_SINK]->width | |
2022 | / scale_m | |
2023 | * sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN]) & ~1; | |
2024 | if (mode == SMIAPP_SCALING_MODE_BOTH) | |
2025 | sel->r.height = | |
2026 | (crops[SMIAPP_PAD_SINK]->height | |
2027 | / scale_m | |
2028 | * sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN]) | |
2029 | & ~1; | |
2030 | else | |
2031 | sel->r.height = crops[SMIAPP_PAD_SINK]->height; | |
2032 | ||
2033 | if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE) { | |
2034 | sensor->scale_m = scale_m; | |
2035 | sensor->scaling_mode = mode; | |
2036 | } | |
2037 | } | |
2038 | /* We're only called on source pads. This function sets scaling. */ | |
2039 | static int smiapp_set_compose(struct v4l2_subdev *subdev, | |
2040 | struct v4l2_subdev_fh *fh, | |
2041 | struct v4l2_subdev_selection *sel) | |
2042 | { | |
2043 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
2044 | struct smiapp_subdev *ssd = to_smiapp_subdev(subdev); | |
2045 | struct v4l2_rect *comp, *crops[SMIAPP_PADS]; | |
2046 | ||
2047 | smiapp_get_crop_compose(subdev, fh, crops, &comp, sel->which); | |
2048 | ||
2049 | sel->r.top = 0; | |
2050 | sel->r.left = 0; | |
2051 | ||
2052 | if (ssd == sensor->binner) | |
2053 | smiapp_set_compose_binner(subdev, fh, sel, crops, comp); | |
2054 | else | |
2055 | smiapp_set_compose_scaler(subdev, fh, sel, crops, comp); | |
2056 | ||
2057 | *comp = sel->r; | |
2058 | smiapp_propagate(subdev, fh, sel->which, | |
5689b288 | 2059 | V4L2_SEL_TGT_COMPOSE); |
ccfc97bd SA |
2060 | |
2061 | if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE) | |
2062 | return smiapp_update_mode(sensor); | |
2063 | ||
2064 | return 0; | |
2065 | } | |
2066 | ||
2067 | static int __smiapp_sel_supported(struct v4l2_subdev *subdev, | |
2068 | struct v4l2_subdev_selection *sel) | |
2069 | { | |
2070 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
2071 | struct smiapp_subdev *ssd = to_smiapp_subdev(subdev); | |
2072 | ||
2073 | /* We only implement crop in three places. */ | |
2074 | switch (sel->target) { | |
5689b288 SA |
2075 | case V4L2_SEL_TGT_CROP: |
2076 | case V4L2_SEL_TGT_CROP_BOUNDS: | |
ccfc97bd SA |
2077 | if (ssd == sensor->pixel_array |
2078 | && sel->pad == SMIAPP_PA_PAD_SRC) | |
2079 | return 0; | |
2080 | if (ssd == sensor->src | |
2081 | && sel->pad == SMIAPP_PAD_SRC) | |
2082 | return 0; | |
2083 | if (ssd == sensor->scaler | |
2084 | && sel->pad == SMIAPP_PAD_SINK | |
2085 | && sensor->limits[SMIAPP_LIMIT_DIGITAL_CROP_CAPABILITY] | |
2086 | == SMIAPP_DIGITAL_CROP_CAPABILITY_INPUT_CROP) | |
2087 | return 0; | |
2088 | return -EINVAL; | |
b518d866 SA |
2089 | case V4L2_SEL_TGT_NATIVE_SIZE: |
2090 | if (ssd == sensor->pixel_array | |
2091 | && sel->pad == SMIAPP_PA_PAD_SRC) | |
2092 | return 0; | |
2093 | return -EINVAL; | |
5689b288 SA |
2094 | case V4L2_SEL_TGT_COMPOSE: |
2095 | case V4L2_SEL_TGT_COMPOSE_BOUNDS: | |
ccfc97bd SA |
2096 | if (sel->pad == ssd->source_pad) |
2097 | return -EINVAL; | |
2098 | if (ssd == sensor->binner) | |
2099 | return 0; | |
2100 | if (ssd == sensor->scaler | |
2101 | && sensor->limits[SMIAPP_LIMIT_SCALING_CAPABILITY] | |
2102 | != SMIAPP_SCALING_CAPABILITY_NONE) | |
2103 | return 0; | |
2104 | /* Fall through */ | |
2105 | default: | |
2106 | return -EINVAL; | |
2107 | } | |
2108 | } | |
2109 | ||
2110 | static int smiapp_set_crop(struct v4l2_subdev *subdev, | |
2111 | struct v4l2_subdev_fh *fh, | |
2112 | struct v4l2_subdev_selection *sel) | |
2113 | { | |
2114 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
2115 | struct smiapp_subdev *ssd = to_smiapp_subdev(subdev); | |
2116 | struct v4l2_rect *src_size, *crops[SMIAPP_PADS]; | |
2117 | struct v4l2_rect _r; | |
2118 | ||
2119 | smiapp_get_crop_compose(subdev, fh, crops, NULL, sel->which); | |
2120 | ||
2121 | if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE) { | |
2122 | if (sel->pad == ssd->sink_pad) | |
2123 | src_size = &ssd->sink_fmt; | |
2124 | else | |
2125 | src_size = &ssd->compose; | |
2126 | } else { | |
2127 | if (sel->pad == ssd->sink_pad) { | |
2128 | _r.left = 0; | |
2129 | _r.top = 0; | |
2130 | _r.width = v4l2_subdev_get_try_format(fh, sel->pad) | |
2131 | ->width; | |
2132 | _r.height = v4l2_subdev_get_try_format(fh, sel->pad) | |
2133 | ->height; | |
2134 | src_size = &_r; | |
2135 | } else { | |
2136 | src_size = | |
2137 | v4l2_subdev_get_try_compose( | |
2138 | fh, ssd->sink_pad); | |
2139 | } | |
2140 | } | |
2141 | ||
2142 | if (ssd == sensor->src && sel->pad == SMIAPP_PAD_SRC) { | |
2143 | sel->r.left = 0; | |
2144 | sel->r.top = 0; | |
2145 | } | |
2146 | ||
2147 | sel->r.width = min(sel->r.width, src_size->width); | |
2148 | sel->r.height = min(sel->r.height, src_size->height); | |
2149 | ||
f90580ca RR |
2150 | sel->r.left = min_t(int, sel->r.left, src_size->width - sel->r.width); |
2151 | sel->r.top = min_t(int, sel->r.top, src_size->height - sel->r.height); | |
ccfc97bd SA |
2152 | |
2153 | *crops[sel->pad] = sel->r; | |
2154 | ||
2155 | if (ssd != sensor->pixel_array && sel->pad == SMIAPP_PAD_SINK) | |
2156 | smiapp_propagate(subdev, fh, sel->which, | |
5689b288 | 2157 | V4L2_SEL_TGT_CROP); |
ccfc97bd SA |
2158 | |
2159 | return 0; | |
2160 | } | |
2161 | ||
2162 | static int __smiapp_get_selection(struct v4l2_subdev *subdev, | |
2163 | struct v4l2_subdev_fh *fh, | |
2164 | struct v4l2_subdev_selection *sel) | |
2165 | { | |
2166 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
2167 | struct smiapp_subdev *ssd = to_smiapp_subdev(subdev); | |
2168 | struct v4l2_rect *comp, *crops[SMIAPP_PADS]; | |
2169 | struct v4l2_rect sink_fmt; | |
2170 | int ret; | |
2171 | ||
2172 | ret = __smiapp_sel_supported(subdev, sel); | |
2173 | if (ret) | |
2174 | return ret; | |
2175 | ||
2176 | smiapp_get_crop_compose(subdev, fh, crops, &comp, sel->which); | |
2177 | ||
2178 | if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE) { | |
2179 | sink_fmt = ssd->sink_fmt; | |
2180 | } else { | |
2181 | struct v4l2_mbus_framefmt *fmt = | |
2182 | v4l2_subdev_get_try_format(fh, ssd->sink_pad); | |
2183 | ||
2184 | sink_fmt.left = 0; | |
2185 | sink_fmt.top = 0; | |
2186 | sink_fmt.width = fmt->width; | |
2187 | sink_fmt.height = fmt->height; | |
2188 | } | |
2189 | ||
2190 | switch (sel->target) { | |
5689b288 | 2191 | case V4L2_SEL_TGT_CROP_BOUNDS: |
b518d866 | 2192 | case V4L2_SEL_TGT_NATIVE_SIZE: |
ccfc97bd | 2193 | if (ssd == sensor->pixel_array) { |
21734b06 | 2194 | sel->r.left = sel->r.top = 0; |
ccfc97bd SA |
2195 | sel->r.width = |
2196 | sensor->limits[SMIAPP_LIMIT_X_ADDR_MAX] + 1; | |
2197 | sel->r.height = | |
2198 | sensor->limits[SMIAPP_LIMIT_Y_ADDR_MAX] + 1; | |
2199 | } else if (sel->pad == ssd->sink_pad) { | |
2200 | sel->r = sink_fmt; | |
2201 | } else { | |
2202 | sel->r = *comp; | |
2203 | } | |
2204 | break; | |
5689b288 SA |
2205 | case V4L2_SEL_TGT_CROP: |
2206 | case V4L2_SEL_TGT_COMPOSE_BOUNDS: | |
ccfc97bd SA |
2207 | sel->r = *crops[sel->pad]; |
2208 | break; | |
5689b288 | 2209 | case V4L2_SEL_TGT_COMPOSE: |
ccfc97bd SA |
2210 | sel->r = *comp; |
2211 | break; | |
2212 | } | |
2213 | ||
2214 | return 0; | |
2215 | } | |
2216 | ||
2217 | static int smiapp_get_selection(struct v4l2_subdev *subdev, | |
2218 | struct v4l2_subdev_fh *fh, | |
2219 | struct v4l2_subdev_selection *sel) | |
2220 | { | |
2221 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
2222 | int rval; | |
2223 | ||
2224 | mutex_lock(&sensor->mutex); | |
2225 | rval = __smiapp_get_selection(subdev, fh, sel); | |
2226 | mutex_unlock(&sensor->mutex); | |
2227 | ||
2228 | return rval; | |
2229 | } | |
2230 | static int smiapp_set_selection(struct v4l2_subdev *subdev, | |
2231 | struct v4l2_subdev_fh *fh, | |
2232 | struct v4l2_subdev_selection *sel) | |
2233 | { | |
2234 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
2235 | int ret; | |
2236 | ||
2237 | ret = __smiapp_sel_supported(subdev, sel); | |
2238 | if (ret) | |
2239 | return ret; | |
2240 | ||
2241 | mutex_lock(&sensor->mutex); | |
2242 | ||
2243 | sel->r.left = max(0, sel->r.left & ~1); | |
2244 | sel->r.top = max(0, sel->r.top & ~1); | |
f90580ca RR |
2245 | sel->r.width = SMIAPP_ALIGN_DIM(sel->r.width, sel->flags); |
2246 | sel->r.height = SMIAPP_ALIGN_DIM(sel->r.height, sel->flags); | |
ccfc97bd SA |
2247 | |
2248 | sel->r.width = max_t(unsigned int, | |
2249 | sensor->limits[SMIAPP_LIMIT_MIN_X_OUTPUT_SIZE], | |
2250 | sel->r.width); | |
2251 | sel->r.height = max_t(unsigned int, | |
2252 | sensor->limits[SMIAPP_LIMIT_MIN_Y_OUTPUT_SIZE], | |
2253 | sel->r.height); | |
2254 | ||
2255 | switch (sel->target) { | |
5689b288 | 2256 | case V4L2_SEL_TGT_CROP: |
ccfc97bd SA |
2257 | ret = smiapp_set_crop(subdev, fh, sel); |
2258 | break; | |
5689b288 | 2259 | case V4L2_SEL_TGT_COMPOSE: |
ccfc97bd SA |
2260 | ret = smiapp_set_compose(subdev, fh, sel); |
2261 | break; | |
2262 | default: | |
b31eb901 | 2263 | ret = -EINVAL; |
ccfc97bd SA |
2264 | } |
2265 | ||
2266 | mutex_unlock(&sensor->mutex); | |
2267 | return ret; | |
2268 | } | |
2269 | ||
2270 | static int smiapp_get_skip_frames(struct v4l2_subdev *subdev, u32 *frames) | |
2271 | { | |
2272 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
2273 | ||
2274 | *frames = sensor->frame_skip; | |
2275 | return 0; | |
2276 | } | |
2277 | ||
2278 | /* ----------------------------------------------------------------------------- | |
2279 | * sysfs attributes | |
2280 | */ | |
2281 | ||
2282 | static ssize_t | |
2283 | smiapp_sysfs_nvm_read(struct device *dev, struct device_attribute *attr, | |
2284 | char *buf) | |
2285 | { | |
2286 | struct v4l2_subdev *subdev = i2c_get_clientdata(to_i2c_client(dev)); | |
2287 | struct i2c_client *client = v4l2_get_subdevdata(subdev); | |
2288 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
2289 | unsigned int nbytes; | |
2290 | ||
2291 | if (!sensor->dev_init_done) | |
2292 | return -EBUSY; | |
2293 | ||
2294 | if (!sensor->nvm_size) { | |
2295 | /* NVM not read yet - read it now */ | |
2296 | sensor->nvm_size = sensor->platform_data->nvm_size; | |
2297 | if (smiapp_set_power(subdev, 1) < 0) | |
2298 | return -ENODEV; | |
2299 | if (smiapp_read_nvm(sensor, sensor->nvm)) { | |
2300 | dev_err(&client->dev, "nvm read failed\n"); | |
2301 | return -ENODEV; | |
2302 | } | |
2303 | smiapp_set_power(subdev, 0); | |
2304 | } | |
2305 | /* | |
2306 | * NVM is still way below a PAGE_SIZE, so we can safely | |
2307 | * assume this for now. | |
2308 | */ | |
2309 | nbytes = min_t(unsigned int, sensor->nvm_size, PAGE_SIZE); | |
2310 | memcpy(buf, sensor->nvm, nbytes); | |
2311 | ||
2312 | return nbytes; | |
2313 | } | |
2314 | static DEVICE_ATTR(nvm, S_IRUGO, smiapp_sysfs_nvm_read, NULL); | |
2315 | ||
eba66b3e SA |
2316 | static ssize_t |
2317 | smiapp_sysfs_ident_read(struct device *dev, struct device_attribute *attr, | |
2318 | char *buf) | |
2319 | { | |
2320 | struct v4l2_subdev *subdev = i2c_get_clientdata(to_i2c_client(dev)); | |
2321 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
2322 | struct smiapp_module_info *minfo = &sensor->minfo; | |
2323 | ||
2324 | return snprintf(buf, PAGE_SIZE, "%2.2x%4.4x%2.2x\n", | |
2325 | minfo->manufacturer_id, minfo->model_id, | |
2326 | minfo->revision_number_major) + 1; | |
2327 | } | |
2328 | ||
2329 | static DEVICE_ATTR(ident, S_IRUGO, smiapp_sysfs_ident_read, NULL); | |
2330 | ||
ccfc97bd SA |
2331 | /* ----------------------------------------------------------------------------- |
2332 | * V4L2 subdev core operations | |
2333 | */ | |
2334 | ||
2335 | static int smiapp_identify_module(struct v4l2_subdev *subdev) | |
2336 | { | |
2337 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
2338 | struct i2c_client *client = v4l2_get_subdevdata(subdev); | |
2339 | struct smiapp_module_info *minfo = &sensor->minfo; | |
2340 | unsigned int i; | |
2341 | int rval = 0; | |
2342 | ||
2343 | minfo->name = SMIAPP_NAME; | |
2344 | ||
2345 | /* Module info */ | |
98add8e8 SA |
2346 | rval = smiapp_read_8only(sensor, SMIAPP_REG_U8_MANUFACTURER_ID, |
2347 | &minfo->manufacturer_id); | |
ccfc97bd | 2348 | if (!rval) |
98add8e8 SA |
2349 | rval = smiapp_read_8only(sensor, SMIAPP_REG_U16_MODEL_ID, |
2350 | &minfo->model_id); | |
ccfc97bd | 2351 | if (!rval) |
98add8e8 SA |
2352 | rval = smiapp_read_8only(sensor, |
2353 | SMIAPP_REG_U8_REVISION_NUMBER_MAJOR, | |
2354 | &minfo->revision_number_major); | |
ccfc97bd | 2355 | if (!rval) |
98add8e8 SA |
2356 | rval = smiapp_read_8only(sensor, |
2357 | SMIAPP_REG_U8_REVISION_NUMBER_MINOR, | |
2358 | &minfo->revision_number_minor); | |
ccfc97bd | 2359 | if (!rval) |
98add8e8 SA |
2360 | rval = smiapp_read_8only(sensor, |
2361 | SMIAPP_REG_U8_MODULE_DATE_YEAR, | |
2362 | &minfo->module_year); | |
ccfc97bd | 2363 | if (!rval) |
98add8e8 SA |
2364 | rval = smiapp_read_8only(sensor, |
2365 | SMIAPP_REG_U8_MODULE_DATE_MONTH, | |
2366 | &minfo->module_month); | |
ccfc97bd | 2367 | if (!rval) |
98add8e8 SA |
2368 | rval = smiapp_read_8only(sensor, SMIAPP_REG_U8_MODULE_DATE_DAY, |
2369 | &minfo->module_day); | |
ccfc97bd SA |
2370 | |
2371 | /* Sensor info */ | |
2372 | if (!rval) | |
98add8e8 SA |
2373 | rval = smiapp_read_8only(sensor, |
2374 | SMIAPP_REG_U8_SENSOR_MANUFACTURER_ID, | |
2375 | &minfo->sensor_manufacturer_id); | |
ccfc97bd | 2376 | if (!rval) |
98add8e8 SA |
2377 | rval = smiapp_read_8only(sensor, |
2378 | SMIAPP_REG_U16_SENSOR_MODEL_ID, | |
2379 | &minfo->sensor_model_id); | |
ccfc97bd | 2380 | if (!rval) |
98add8e8 SA |
2381 | rval = smiapp_read_8only(sensor, |
2382 | SMIAPP_REG_U8_SENSOR_REVISION_NUMBER, | |
2383 | &minfo->sensor_revision_number); | |
ccfc97bd | 2384 | if (!rval) |
98add8e8 SA |
2385 | rval = smiapp_read_8only(sensor, |
2386 | SMIAPP_REG_U8_SENSOR_FIRMWARE_VERSION, | |
2387 | &minfo->sensor_firmware_version); | |
ccfc97bd SA |
2388 | |
2389 | /* SMIA */ | |
2390 | if (!rval) | |
98add8e8 SA |
2391 | rval = smiapp_read_8only(sensor, SMIAPP_REG_U8_SMIA_VERSION, |
2392 | &minfo->smia_version); | |
ccfc97bd | 2393 | if (!rval) |
98add8e8 SA |
2394 | rval = smiapp_read_8only(sensor, SMIAPP_REG_U8_SMIAPP_VERSION, |
2395 | &minfo->smiapp_version); | |
ccfc97bd SA |
2396 | |
2397 | if (rval) { | |
2398 | dev_err(&client->dev, "sensor detection failed\n"); | |
2399 | return -ENODEV; | |
2400 | } | |
2401 | ||
2402 | dev_dbg(&client->dev, "module 0x%2.2x-0x%4.4x\n", | |
2403 | minfo->manufacturer_id, minfo->model_id); | |
2404 | ||
2405 | dev_dbg(&client->dev, | |
2406 | "module revision 0x%2.2x-0x%2.2x date %2.2d-%2.2d-%2.2d\n", | |
2407 | minfo->revision_number_major, minfo->revision_number_minor, | |
2408 | minfo->module_year, minfo->module_month, minfo->module_day); | |
2409 | ||
2410 | dev_dbg(&client->dev, "sensor 0x%2.2x-0x%4.4x\n", | |
2411 | minfo->sensor_manufacturer_id, minfo->sensor_model_id); | |
2412 | ||
2413 | dev_dbg(&client->dev, | |
2414 | "sensor revision 0x%2.2x firmware version 0x%2.2x\n", | |
2415 | minfo->sensor_revision_number, minfo->sensor_firmware_version); | |
2416 | ||
2417 | dev_dbg(&client->dev, "smia version %2.2d smiapp version %2.2d\n", | |
2418 | minfo->smia_version, minfo->smiapp_version); | |
2419 | ||
2420 | /* | |
2421 | * Some modules have bad data in the lvalues below. Hope the | |
2422 | * rvalues have better stuff. The lvalues are module | |
2423 | * parameters whereas the rvalues are sensor parameters. | |
2424 | */ | |
2425 | if (!minfo->manufacturer_id && !minfo->model_id) { | |
2426 | minfo->manufacturer_id = minfo->sensor_manufacturer_id; | |
2427 | minfo->model_id = minfo->sensor_model_id; | |
2428 | minfo->revision_number_major = minfo->sensor_revision_number; | |
2429 | } | |
2430 | ||
2431 | for (i = 0; i < ARRAY_SIZE(smiapp_module_idents); i++) { | |
2432 | if (smiapp_module_idents[i].manufacturer_id | |
2433 | != minfo->manufacturer_id) | |
2434 | continue; | |
2435 | if (smiapp_module_idents[i].model_id != minfo->model_id) | |
2436 | continue; | |
2437 | if (smiapp_module_idents[i].flags | |
2438 | & SMIAPP_MODULE_IDENT_FLAG_REV_LE) { | |
2439 | if (smiapp_module_idents[i].revision_number_major | |
2440 | < minfo->revision_number_major) | |
2441 | continue; | |
2442 | } else { | |
2443 | if (smiapp_module_idents[i].revision_number_major | |
2444 | != minfo->revision_number_major) | |
2445 | continue; | |
2446 | } | |
2447 | ||
2448 | minfo->name = smiapp_module_idents[i].name; | |
2449 | minfo->quirk = smiapp_module_idents[i].quirk; | |
2450 | break; | |
2451 | } | |
2452 | ||
2453 | if (i >= ARRAY_SIZE(smiapp_module_idents)) | |
2454 | dev_warn(&client->dev, | |
2455 | "no quirks for this module; let's hope it's fully compliant\n"); | |
2456 | ||
2457 | dev_dbg(&client->dev, "the sensor is called %s, ident %2.2x%4.4x%2.2x\n", | |
2458 | minfo->name, minfo->manufacturer_id, minfo->model_id, | |
2459 | minfo->revision_number_major); | |
2460 | ||
ccfc97bd SA |
2461 | return 0; |
2462 | } | |
2463 | ||
2464 | static const struct v4l2_subdev_ops smiapp_ops; | |
2465 | static const struct v4l2_subdev_internal_ops smiapp_internal_ops; | |
2466 | static const struct media_entity_operations smiapp_entity_ops; | |
2467 | ||
2468 | static int smiapp_registered(struct v4l2_subdev *subdev) | |
2469 | { | |
2470 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
2471 | struct i2c_client *client = v4l2_get_subdevdata(subdev); | |
1e9240b3 | 2472 | struct smiapp_pll *pll = &sensor->pll; |
ccfc97bd SA |
2473 | struct smiapp_subdev *last = NULL; |
2474 | u32 tmp; | |
2475 | unsigned int i; | |
2476 | int rval; | |
2477 | ||
5fba9888 | 2478 | sensor->vana = devm_regulator_get(&client->dev, "vana"); |
ccfc97bd SA |
2479 | if (IS_ERR(sensor->vana)) { |
2480 | dev_err(&client->dev, "could not get regulator for vana\n"); | |
24644035 | 2481 | return PTR_ERR(sensor->vana); |
ccfc97bd SA |
2482 | } |
2483 | ||
2547428d | 2484 | if (!sensor->platform_data->set_xclk) { |
a354177f | 2485 | sensor->ext_clk = devm_clk_get(&client->dev, "ext_clk"); |
2547428d | 2486 | if (IS_ERR(sensor->ext_clk)) { |
a354177f | 2487 | dev_err(&client->dev, "could not get clock\n"); |
24644035 | 2488 | return PTR_ERR(sensor->ext_clk); |
2547428d SA |
2489 | } |
2490 | ||
2491 | rval = clk_set_rate(sensor->ext_clk, | |
2492 | sensor->platform_data->ext_clk); | |
2493 | if (rval < 0) { | |
2494 | dev_err(&client->dev, | |
a354177f | 2495 | "unable to set clock freq to %u\n", |
2547428d | 2496 | sensor->platform_data->ext_clk); |
24644035 | 2497 | return rval; |
2547428d SA |
2498 | } |
2499 | } | |
2500 | ||
9945374e | 2501 | if (gpio_is_valid(sensor->platform_data->xshutdown)) { |
24644035 SA |
2502 | rval = devm_gpio_request_one( |
2503 | &client->dev, sensor->platform_data->xshutdown, 0, | |
2504 | "SMIA++ xshutdown"); | |
2505 | if (rval < 0) { | |
ccfc97bd SA |
2506 | dev_err(&client->dev, |
2507 | "unable to acquire reset gpio %d\n", | |
2508 | sensor->platform_data->xshutdown); | |
24644035 | 2509 | return rval; |
ccfc97bd SA |
2510 | } |
2511 | } | |
2512 | ||
2513 | rval = smiapp_power_on(sensor); | |
b015ba29 LP |
2514 | if (rval) |
2515 | return -ENODEV; | |
ccfc97bd SA |
2516 | |
2517 | rval = smiapp_identify_module(subdev); | |
2518 | if (rval) { | |
2519 | rval = -ENODEV; | |
2520 | goto out_power_off; | |
2521 | } | |
2522 | ||
2523 | rval = smiapp_get_all_limits(sensor); | |
2524 | if (rval) { | |
2525 | rval = -ENODEV; | |
2526 | goto out_power_off; | |
2527 | } | |
2528 | ||
2529 | /* | |
2530 | * Handle Sensor Module orientation on the board. | |
2531 | * | |
2532 | * The application of H-FLIP and V-FLIP on the sensor is modified by | |
2533 | * the sensor orientation on the board. | |
2534 | * | |
2535 | * For SMIAPP_BOARD_SENSOR_ORIENT_180 the default behaviour is to set | |
2536 | * both H-FLIP and V-FLIP for normal operation which also implies | |
2537 | * that a set/unset operation for user space HFLIP and VFLIP v4l2 | |
2538 | * controls will need to be internally inverted. | |
2539 | * | |
2540 | * Rotation also changes the bayer pattern. | |
2541 | */ | |
2542 | if (sensor->platform_data->module_board_orient == | |
2543 | SMIAPP_MODULE_BOARD_ORIENT_180) | |
2544 | sensor->hvflip_inv_mask = SMIAPP_IMAGE_ORIENTATION_HFLIP | | |
2545 | SMIAPP_IMAGE_ORIENTATION_VFLIP; | |
2546 | ||
e5a3f7b8 SA |
2547 | rval = smiapp_call_quirk(sensor, limits); |
2548 | if (rval) { | |
2549 | dev_err(&client->dev, "limits quirks failed\n"); | |
2550 | goto out_power_off; | |
2551 | } | |
2552 | ||
ccfc97bd SA |
2553 | if (sensor->limits[SMIAPP_LIMIT_BINNING_CAPABILITY]) { |
2554 | u32 val; | |
2555 | ||
1e73eea7 | 2556 | rval = smiapp_read(sensor, |
ccfc97bd SA |
2557 | SMIAPP_REG_U8_BINNING_SUBTYPES, &val); |
2558 | if (rval < 0) { | |
2559 | rval = -ENODEV; | |
2560 | goto out_power_off; | |
2561 | } | |
2562 | sensor->nbinning_subtypes = min_t(u8, val, | |
2563 | SMIAPP_BINNING_SUBTYPES); | |
2564 | ||
2565 | for (i = 0; i < sensor->nbinning_subtypes; i++) { | |
2566 | rval = smiapp_read( | |
1e73eea7 | 2567 | sensor, SMIAPP_REG_U8_BINNING_TYPE_n(i), &val); |
ccfc97bd SA |
2568 | if (rval < 0) { |
2569 | rval = -ENODEV; | |
2570 | goto out_power_off; | |
2571 | } | |
2572 | sensor->binning_subtypes[i] = | |
2573 | *(struct smiapp_binning_subtype *)&val; | |
2574 | ||
2575 | dev_dbg(&client->dev, "binning %xx%x\n", | |
2576 | sensor->binning_subtypes[i].horizontal, | |
2577 | sensor->binning_subtypes[i].vertical); | |
2578 | } | |
2579 | } | |
2580 | sensor->binning_horizontal = 1; | |
2581 | sensor->binning_vertical = 1; | |
2582 | ||
eba66b3e SA |
2583 | if (device_create_file(&client->dev, &dev_attr_ident) != 0) { |
2584 | dev_err(&client->dev, "sysfs ident entry creation failed\n"); | |
2585 | rval = -ENOENT; | |
2586 | goto out_power_off; | |
2587 | } | |
ccfc97bd SA |
2588 | /* SMIA++ NVM initialization - it will be read from the sensor |
2589 | * when it is first requested by userspace. | |
2590 | */ | |
2591 | if (sensor->minfo.smiapp_version && sensor->platform_data->nvm_size) { | |
31c1d17b SK |
2592 | sensor->nvm = devm_kzalloc(&client->dev, |
2593 | sensor->platform_data->nvm_size, GFP_KERNEL); | |
ccfc97bd SA |
2594 | if (sensor->nvm == NULL) { |
2595 | dev_err(&client->dev, "nvm buf allocation failed\n"); | |
2596 | rval = -ENOMEM; | |
eba66b3e | 2597 | goto out_ident_release; |
ccfc97bd SA |
2598 | } |
2599 | ||
2600 | if (device_create_file(&client->dev, &dev_attr_nvm) != 0) { | |
2601 | dev_err(&client->dev, "sysfs nvm entry failed\n"); | |
2602 | rval = -EBUSY; | |
eba66b3e | 2603 | goto out_ident_release; |
ccfc97bd SA |
2604 | } |
2605 | } | |
2606 | ||
ccfc97bd SA |
2607 | /* We consider this as profile 0 sensor if any of these are zero. */ |
2608 | if (!sensor->limits[SMIAPP_LIMIT_MIN_OP_SYS_CLK_DIV] || | |
2609 | !sensor->limits[SMIAPP_LIMIT_MAX_OP_SYS_CLK_DIV] || | |
2610 | !sensor->limits[SMIAPP_LIMIT_MIN_OP_PIX_CLK_DIV] || | |
2611 | !sensor->limits[SMIAPP_LIMIT_MAX_OP_PIX_CLK_DIV]) { | |
2612 | sensor->minfo.smiapp_profile = SMIAPP_PROFILE_0; | |
2613 | } else if (sensor->limits[SMIAPP_LIMIT_SCALING_CAPABILITY] | |
2614 | != SMIAPP_SCALING_CAPABILITY_NONE) { | |
2615 | if (sensor->limits[SMIAPP_LIMIT_SCALING_CAPABILITY] | |
2616 | == SMIAPP_SCALING_CAPABILITY_HORIZONTAL) | |
2617 | sensor->minfo.smiapp_profile = SMIAPP_PROFILE_1; | |
2618 | else | |
2619 | sensor->minfo.smiapp_profile = SMIAPP_PROFILE_2; | |
2620 | sensor->scaler = &sensor->ssds[sensor->ssds_used]; | |
2621 | sensor->ssds_used++; | |
2622 | } else if (sensor->limits[SMIAPP_LIMIT_DIGITAL_CROP_CAPABILITY] | |
2623 | == SMIAPP_DIGITAL_CROP_CAPABILITY_INPUT_CROP) { | |
2624 | sensor->scaler = &sensor->ssds[sensor->ssds_used]; | |
2625 | sensor->ssds_used++; | |
2626 | } | |
2627 | sensor->binner = &sensor->ssds[sensor->ssds_used]; | |
2628 | sensor->ssds_used++; | |
2629 | sensor->pixel_array = &sensor->ssds[sensor->ssds_used]; | |
2630 | sensor->ssds_used++; | |
2631 | ||
2632 | sensor->scale_m = sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN]; | |
2633 | ||
38a833c7 SA |
2634 | /* prepare PLL configuration input values */ |
2635 | pll->bus_type = SMIAPP_PLL_BUS_TYPE_CSI2; | |
2636 | pll->csi2.lanes = sensor->platform_data->lanes; | |
2637 | pll->ext_clk_freq_hz = sensor->platform_data->ext_clk; | |
2638 | pll->flags = smiapp_call_quirk(sensor, pll_flags); | |
2639 | pll->scale_n = sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN]; | |
2640 | /* Profile 0 sensors have no separate OP clock branch. */ | |
2641 | if (sensor->minfo.smiapp_profile == SMIAPP_PROFILE_0) | |
2642 | pll->flags |= SMIAPP_PLL_FLAG_NO_OP_CLOCKS; | |
2643 | ||
2644 | rval = smiapp_get_mbus_formats(sensor); | |
2645 | if (rval) { | |
2646 | rval = -ENODEV; | |
2647 | goto out_nvm_release; | |
2648 | } | |
2649 | ||
ccfc97bd SA |
2650 | for (i = 0; i < SMIAPP_SUBDEVS; i++) { |
2651 | struct { | |
2652 | struct smiapp_subdev *ssd; | |
2653 | char *name; | |
2654 | } const __this[] = { | |
2655 | { sensor->scaler, "scaler", }, | |
2656 | { sensor->binner, "binner", }, | |
2657 | { sensor->pixel_array, "pixel array", }, | |
2658 | }, *_this = &__this[i]; | |
2659 | struct smiapp_subdev *this = _this->ssd; | |
2660 | ||
2661 | if (!this) | |
2662 | continue; | |
2663 | ||
2664 | if (this != sensor->src) | |
2665 | v4l2_subdev_init(&this->sd, &smiapp_ops); | |
2666 | ||
2667 | this->sensor = sensor; | |
2668 | ||
2669 | if (this == sensor->pixel_array) { | |
2670 | this->npads = 1; | |
2671 | } else { | |
2672 | this->npads = 2; | |
2673 | this->source_pad = 1; | |
2674 | } | |
2675 | ||
2676 | snprintf(this->sd.name, | |
f8d36b89 SA |
2677 | sizeof(this->sd.name), "%s %s %d-%4.4x", |
2678 | sensor->minfo.name, _this->name, | |
2679 | i2c_adapter_id(client->adapter), client->addr); | |
ccfc97bd SA |
2680 | |
2681 | this->sink_fmt.width = | |
2682 | sensor->limits[SMIAPP_LIMIT_X_ADDR_MAX] + 1; | |
2683 | this->sink_fmt.height = | |
2684 | sensor->limits[SMIAPP_LIMIT_Y_ADDR_MAX] + 1; | |
2685 | this->compose.width = this->sink_fmt.width; | |
2686 | this->compose.height = this->sink_fmt.height; | |
2687 | this->crop[this->source_pad] = this->compose; | |
2688 | this->pads[this->source_pad].flags = MEDIA_PAD_FL_SOURCE; | |
2689 | if (this != sensor->pixel_array) { | |
2690 | this->crop[this->sink_pad] = this->compose; | |
2691 | this->pads[this->sink_pad].flags = MEDIA_PAD_FL_SINK; | |
2692 | } | |
2693 | ||
2694 | this->sd.entity.ops = &smiapp_entity_ops; | |
2695 | ||
2696 | if (last == NULL) { | |
2697 | last = this; | |
2698 | continue; | |
2699 | } | |
2700 | ||
2701 | this->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; | |
2702 | this->sd.internal_ops = &smiapp_internal_ops; | |
60b31b72 | 2703 | this->sd.owner = THIS_MODULE; |
ccfc97bd SA |
2704 | v4l2_set_subdevdata(&this->sd, client); |
2705 | ||
2706 | rval = media_entity_init(&this->sd.entity, | |
2707 | this->npads, this->pads, 0); | |
2708 | if (rval) { | |
2709 | dev_err(&client->dev, | |
2710 | "media_entity_init failed\n"); | |
2711 | goto out_nvm_release; | |
2712 | } | |
2713 | ||
2714 | rval = media_entity_create_link(&this->sd.entity, | |
2715 | this->source_pad, | |
2716 | &last->sd.entity, | |
2717 | last->sink_pad, | |
2718 | MEDIA_LNK_FL_ENABLED | | |
2719 | MEDIA_LNK_FL_IMMUTABLE); | |
2720 | if (rval) { | |
2721 | dev_err(&client->dev, | |
2722 | "media_entity_create_link failed\n"); | |
2723 | goto out_nvm_release; | |
2724 | } | |
2725 | ||
2726 | rval = v4l2_device_register_subdev(sensor->src->sd.v4l2_dev, | |
2727 | &this->sd); | |
2728 | if (rval) { | |
2729 | dev_err(&client->dev, | |
2730 | "v4l2_device_register_subdev failed\n"); | |
2731 | goto out_nvm_release; | |
2732 | } | |
2733 | ||
2734 | last = this; | |
2735 | } | |
2736 | ||
2737 | dev_dbg(&client->dev, "profile %d\n", sensor->minfo.smiapp_profile); | |
2738 | ||
2739 | sensor->pixel_array->sd.entity.type = MEDIA_ENT_T_V4L2_SUBDEV_SENSOR; | |
2740 | ||
2741 | /* final steps */ | |
2742 | smiapp_read_frame_fmt(sensor); | |
2743 | rval = smiapp_init_controls(sensor); | |
2744 | if (rval < 0) | |
2745 | goto out_nvm_release; | |
2746 | ||
f85698cd | 2747 | mutex_lock(&sensor->mutex); |
ccfc97bd | 2748 | rval = smiapp_update_mode(sensor); |
f85698cd | 2749 | mutex_unlock(&sensor->mutex); |
ccfc97bd SA |
2750 | if (rval) { |
2751 | dev_err(&client->dev, "update mode failed\n"); | |
2752 | goto out_nvm_release; | |
2753 | } | |
2754 | ||
2755 | sensor->streaming = false; | |
2756 | sensor->dev_init_done = true; | |
2757 | ||
2758 | /* check flash capability */ | |
1e73eea7 | 2759 | rval = smiapp_read(sensor, SMIAPP_REG_U8_FLASH_MODE_CAPABILITY, &tmp); |
ccfc97bd SA |
2760 | sensor->flash_capability = tmp; |
2761 | if (rval) | |
2762 | goto out_nvm_release; | |
2763 | ||
2764 | smiapp_power_off(sensor); | |
2765 | ||
2766 | return 0; | |
2767 | ||
2768 | out_nvm_release: | |
2769 | device_remove_file(&client->dev, &dev_attr_nvm); | |
2770 | ||
eba66b3e SA |
2771 | out_ident_release: |
2772 | device_remove_file(&client->dev, &dev_attr_ident); | |
2773 | ||
ccfc97bd | 2774 | out_power_off: |
ccfc97bd | 2775 | smiapp_power_off(sensor); |
ccfc97bd SA |
2776 | return rval; |
2777 | } | |
2778 | ||
2779 | static int smiapp_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) | |
2780 | { | |
2781 | struct smiapp_subdev *ssd = to_smiapp_subdev(sd); | |
2782 | struct smiapp_sensor *sensor = ssd->sensor; | |
2783 | u32 mbus_code = | |
2784 | smiapp_csi_data_formats[smiapp_pixel_order(sensor)].code; | |
2785 | unsigned int i; | |
2786 | ||
2787 | mutex_lock(&sensor->mutex); | |
2788 | ||
2789 | for (i = 0; i < ssd->npads; i++) { | |
2790 | struct v4l2_mbus_framefmt *try_fmt = | |
2791 | v4l2_subdev_get_try_format(fh, i); | |
2792 | struct v4l2_rect *try_crop = v4l2_subdev_get_try_crop(fh, i); | |
2793 | struct v4l2_rect *try_comp; | |
2794 | ||
2795 | try_fmt->width = sensor->limits[SMIAPP_LIMIT_X_ADDR_MAX] + 1; | |
2796 | try_fmt->height = sensor->limits[SMIAPP_LIMIT_Y_ADDR_MAX] + 1; | |
2797 | try_fmt->code = mbus_code; | |
7ed0b291 | 2798 | try_fmt->field = V4L2_FIELD_NONE; |
ccfc97bd SA |
2799 | |
2800 | try_crop->top = 0; | |
2801 | try_crop->left = 0; | |
2802 | try_crop->width = try_fmt->width; | |
2803 | try_crop->height = try_fmt->height; | |
2804 | ||
2805 | if (ssd != sensor->pixel_array) | |
2806 | continue; | |
2807 | ||
2808 | try_comp = v4l2_subdev_get_try_compose(fh, i); | |
2809 | *try_comp = *try_crop; | |
2810 | } | |
2811 | ||
2812 | mutex_unlock(&sensor->mutex); | |
2813 | ||
2814 | return smiapp_set_power(sd, 1); | |
2815 | } | |
2816 | ||
2817 | static int smiapp_close(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) | |
2818 | { | |
2819 | return smiapp_set_power(sd, 0); | |
2820 | } | |
2821 | ||
2822 | static const struct v4l2_subdev_video_ops smiapp_video_ops = { | |
2823 | .s_stream = smiapp_set_stream, | |
2824 | }; | |
2825 | ||
2826 | static const struct v4l2_subdev_core_ops smiapp_core_ops = { | |
2827 | .s_power = smiapp_set_power, | |
2828 | }; | |
2829 | ||
2830 | static const struct v4l2_subdev_pad_ops smiapp_pad_ops = { | |
2831 | .enum_mbus_code = smiapp_enum_mbus_code, | |
2832 | .get_fmt = smiapp_get_format, | |
2833 | .set_fmt = smiapp_set_format, | |
2834 | .get_selection = smiapp_get_selection, | |
2835 | .set_selection = smiapp_set_selection, | |
2836 | }; | |
2837 | ||
2838 | static const struct v4l2_subdev_sensor_ops smiapp_sensor_ops = { | |
2839 | .g_skip_frames = smiapp_get_skip_frames, | |
2840 | }; | |
2841 | ||
2842 | static const struct v4l2_subdev_ops smiapp_ops = { | |
2843 | .core = &smiapp_core_ops, | |
2844 | .video = &smiapp_video_ops, | |
2845 | .pad = &smiapp_pad_ops, | |
2846 | .sensor = &smiapp_sensor_ops, | |
2847 | }; | |
2848 | ||
2849 | static const struct media_entity_operations smiapp_entity_ops = { | |
2850 | .link_validate = v4l2_subdev_link_validate, | |
2851 | }; | |
2852 | ||
2853 | static const struct v4l2_subdev_internal_ops smiapp_internal_src_ops = { | |
2854 | .registered = smiapp_registered, | |
2855 | .open = smiapp_open, | |
2856 | .close = smiapp_close, | |
2857 | }; | |
2858 | ||
2859 | static const struct v4l2_subdev_internal_ops smiapp_internal_ops = { | |
2860 | .open = smiapp_open, | |
2861 | .close = smiapp_close, | |
2862 | }; | |
2863 | ||
2864 | /* ----------------------------------------------------------------------------- | |
2865 | * I2C Driver | |
2866 | */ | |
2867 | ||
2868 | #ifdef CONFIG_PM | |
2869 | ||
2870 | static int smiapp_suspend(struct device *dev) | |
2871 | { | |
2872 | struct i2c_client *client = to_i2c_client(dev); | |
2873 | struct v4l2_subdev *subdev = i2c_get_clientdata(client); | |
2874 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
2875 | bool streaming; | |
2876 | ||
2877 | BUG_ON(mutex_is_locked(&sensor->mutex)); | |
2878 | ||
2879 | if (sensor->power_count == 0) | |
2880 | return 0; | |
2881 | ||
2882 | if (sensor->streaming) | |
2883 | smiapp_stop_streaming(sensor); | |
2884 | ||
2885 | streaming = sensor->streaming; | |
2886 | ||
2887 | smiapp_power_off(sensor); | |
2888 | ||
2889 | /* save state for resume */ | |
2890 | sensor->streaming = streaming; | |
2891 | ||
2892 | return 0; | |
2893 | } | |
2894 | ||
2895 | static int smiapp_resume(struct device *dev) | |
2896 | { | |
2897 | struct i2c_client *client = to_i2c_client(dev); | |
2898 | struct v4l2_subdev *subdev = i2c_get_clientdata(client); | |
2899 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
2900 | int rval; | |
2901 | ||
2902 | if (sensor->power_count == 0) | |
2903 | return 0; | |
2904 | ||
2905 | rval = smiapp_power_on(sensor); | |
2906 | if (rval) | |
2907 | return rval; | |
2908 | ||
2909 | if (sensor->streaming) | |
2910 | rval = smiapp_start_streaming(sensor); | |
2911 | ||
2912 | return rval; | |
2913 | } | |
2914 | ||
2915 | #else | |
2916 | ||
2917 | #define smiapp_suspend NULL | |
2918 | #define smiapp_resume NULL | |
2919 | ||
2920 | #endif /* CONFIG_PM */ | |
2921 | ||
2922 | static int smiapp_probe(struct i2c_client *client, | |
2923 | const struct i2c_device_id *devid) | |
2924 | { | |
2925 | struct smiapp_sensor *sensor; | |
ccfc97bd SA |
2926 | |
2927 | if (client->dev.platform_data == NULL) | |
2928 | return -ENODEV; | |
2929 | ||
31c1d17b | 2930 | sensor = devm_kzalloc(&client->dev, sizeof(*sensor), GFP_KERNEL); |
ccfc97bd SA |
2931 | if (sensor == NULL) |
2932 | return -ENOMEM; | |
2933 | ||
2934 | sensor->platform_data = client->dev.platform_data; | |
2935 | mutex_init(&sensor->mutex); | |
2936 | mutex_init(&sensor->power_mutex); | |
2937 | sensor->src = &sensor->ssds[sensor->ssds_used]; | |
2938 | ||
2939 | v4l2_i2c_subdev_init(&sensor->src->sd, client, &smiapp_ops); | |
2940 | sensor->src->sd.internal_ops = &smiapp_internal_src_ops; | |
2941 | sensor->src->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; | |
2942 | sensor->src->sensor = sensor; | |
2943 | ||
2944 | sensor->src->pads[0].flags = MEDIA_PAD_FL_SOURCE; | |
f73108eb | 2945 | rval = media_entity_init(&sensor->src->sd.entity, 2, |
ccfc97bd | 2946 | sensor->src->pads, 0); |
f73108eb SA |
2947 | if (rval < 0) |
2948 | return rval; | |
2949 | ||
2950 | rval = v4l2_async_register_subdev(&sensor->src->sd); | |
2951 | if (rval < 0) | |
2952 | goto out_media_entity_cleanup; | |
2953 | ||
2954 | return 0; | |
2955 | ||
2956 | out_media_entity_cleanup: | |
2957 | media_entity_cleanup(&sensor->src->sd.entity); | |
2958 | ||
2959 | return rval; | |
ccfc97bd SA |
2960 | } |
2961 | ||
bf306900 | 2962 | static int smiapp_remove(struct i2c_client *client) |
ccfc97bd SA |
2963 | { |
2964 | struct v4l2_subdev *subdev = i2c_get_clientdata(client); | |
2965 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
2966 | unsigned int i; | |
2967 | ||
f73108eb SA |
2968 | v4l2_async_unregister_subdev(subdev); |
2969 | ||
ccfc97bd | 2970 | if (sensor->power_count) { |
9945374e | 2971 | if (gpio_is_valid(sensor->platform_data->xshutdown)) |
ccfc97bd | 2972 | gpio_set_value(sensor->platform_data->xshutdown, 0); |
2547428d SA |
2973 | if (sensor->platform_data->set_xclk) |
2974 | sensor->platform_data->set_xclk(&sensor->src->sd, 0); | |
2975 | else | |
d0aae004 | 2976 | clk_disable_unprepare(sensor->ext_clk); |
ccfc97bd SA |
2977 | sensor->power_count = 0; |
2978 | } | |
2979 | ||
eba66b3e | 2980 | device_remove_file(&client->dev, &dev_attr_ident); |
31c1d17b | 2981 | if (sensor->nvm) |
ccfc97bd | 2982 | device_remove_file(&client->dev, &dev_attr_nvm); |
ccfc97bd SA |
2983 | |
2984 | for (i = 0; i < sensor->ssds_used; i++) { | |
ccfc97bd | 2985 | v4l2_device_unregister_subdev(&sensor->ssds[i].sd); |
2a3e7256 | 2986 | media_entity_cleanup(&sensor->ssds[i].sd.entity); |
ccfc97bd SA |
2987 | } |
2988 | smiapp_free_controls(sensor); | |
ccfc97bd SA |
2989 | |
2990 | return 0; | |
2991 | } | |
2992 | ||
2993 | static const struct i2c_device_id smiapp_id_table[] = { | |
2994 | { SMIAPP_NAME, 0 }, | |
2995 | { }, | |
2996 | }; | |
2997 | MODULE_DEVICE_TABLE(i2c, smiapp_id_table); | |
2998 | ||
2999 | static const struct dev_pm_ops smiapp_pm_ops = { | |
3000 | .suspend = smiapp_suspend, | |
3001 | .resume = smiapp_resume, | |
3002 | }; | |
3003 | ||
3004 | static struct i2c_driver smiapp_i2c_driver = { | |
3005 | .driver = { | |
3006 | .name = SMIAPP_NAME, | |
3007 | .pm = &smiapp_pm_ops, | |
3008 | }, | |
3009 | .probe = smiapp_probe, | |
bf306900 | 3010 | .remove = smiapp_remove, |
ccfc97bd SA |
3011 | .id_table = smiapp_id_table, |
3012 | }; | |
3013 | ||
3014 | module_i2c_driver(smiapp_i2c_driver); | |
3015 | ||
8c5dff90 | 3016 | MODULE_AUTHOR("Sakari Ailus <sakari.ailus@iki.fi>"); |
ccfc97bd SA |
3017 | MODULE_DESCRIPTION("Generic SMIA/SMIA++ camera module driver"); |
3018 | MODULE_LICENSE("GPL"); |