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. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with this program; if not, write to the Free Software | |
24 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA | |
25 | * 02110-1301 USA | |
26 | * | |
27 | */ | |
28 | ||
2547428d | 29 | #include <linux/clk.h> |
ccfc97bd SA |
30 | #include <linux/delay.h> |
31 | #include <linux/device.h> | |
32 | #include <linux/gpio.h> | |
33 | #include <linux/module.h> | |
34 | #include <linux/regulator/consumer.h> | |
0e2a6b7f SA |
35 | #include <linux/slab.h> |
36 | #include <linux/smiapp.h> | |
ccfc97bd SA |
37 | #include <linux/v4l2-mediabus.h> |
38 | #include <media/v4l2-device.h> | |
39 | ||
40 | #include "smiapp.h" | |
41 | ||
563df3d0 SA |
42 | #define SMIAPP_ALIGN_DIM(dim, flags) \ |
43 | ((flags) & V4L2_SEL_FLAG_GE \ | |
44 | ? ALIGN((dim), 2) \ | |
ccfc97bd SA |
45 | : (dim) & ~1) |
46 | ||
47 | /* | |
48 | * smiapp_module_idents - supported camera modules | |
49 | */ | |
50 | static const struct smiapp_module_ident smiapp_module_idents[] = { | |
51 | SMIAPP_IDENT_L(0x01, 0x022b, -1, "vs6555"), | |
52 | SMIAPP_IDENT_L(0x01, 0x022e, -1, "vw6558"), | |
53 | SMIAPP_IDENT_L(0x07, 0x7698, -1, "ovm7698"), | |
54 | SMIAPP_IDENT_L(0x0b, 0x4242, -1, "smiapp-003"), | |
55 | SMIAPP_IDENT_L(0x0c, 0x208a, -1, "tcm8330md"), | |
56 | SMIAPP_IDENT_LQ(0x0c, 0x2134, -1, "tcm8500md", &smiapp_tcm8500md_quirk), | |
57 | SMIAPP_IDENT_L(0x0c, 0x213e, -1, "et8en2"), | |
58 | SMIAPP_IDENT_L(0x0c, 0x2184, -1, "tcm8580md"), | |
59 | SMIAPP_IDENT_LQ(0x0c, 0x560f, -1, "jt8ew9", &smiapp_jt8ew9_quirk), | |
60 | SMIAPP_IDENT_LQ(0x10, 0x4141, -1, "jt8ev1", &smiapp_jt8ev1_quirk), | |
61 | SMIAPP_IDENT_LQ(0x10, 0x4241, -1, "imx125es", &smiapp_imx125es_quirk), | |
62 | }; | |
63 | ||
64 | /* | |
65 | * | |
66 | * Dynamic Capability Identification | |
67 | * | |
68 | */ | |
69 | ||
70 | static int smiapp_read_frame_fmt(struct smiapp_sensor *sensor) | |
71 | { | |
72 | struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); | |
73 | u32 fmt_model_type, fmt_model_subtype, ncol_desc, nrow_desc; | |
74 | unsigned int i; | |
75 | int rval; | |
76 | int line_count = 0; | |
77 | int embedded_start = -1, embedded_end = -1; | |
78 | int image_start = 0; | |
79 | ||
1e73eea7 | 80 | rval = smiapp_read(sensor, SMIAPP_REG_U8_FRAME_FORMAT_MODEL_TYPE, |
ccfc97bd SA |
81 | &fmt_model_type); |
82 | if (rval) | |
83 | return rval; | |
84 | ||
1e73eea7 | 85 | rval = smiapp_read(sensor, SMIAPP_REG_U8_FRAME_FORMAT_MODEL_SUBTYPE, |
ccfc97bd SA |
86 | &fmt_model_subtype); |
87 | if (rval) | |
88 | return rval; | |
89 | ||
90 | ncol_desc = (fmt_model_subtype | |
91 | & SMIAPP_FRAME_FORMAT_MODEL_SUBTYPE_NCOLS_MASK) | |
92 | >> SMIAPP_FRAME_FORMAT_MODEL_SUBTYPE_NCOLS_SHIFT; | |
93 | nrow_desc = fmt_model_subtype | |
94 | & SMIAPP_FRAME_FORMAT_MODEL_SUBTYPE_NROWS_MASK; | |
95 | ||
96 | dev_dbg(&client->dev, "format_model_type %s\n", | |
97 | fmt_model_type == SMIAPP_FRAME_FORMAT_MODEL_TYPE_2BYTE | |
98 | ? "2 byte" : | |
99 | fmt_model_type == SMIAPP_FRAME_FORMAT_MODEL_TYPE_4BYTE | |
100 | ? "4 byte" : "is simply bad"); | |
101 | ||
102 | for (i = 0; i < ncol_desc + nrow_desc; i++) { | |
103 | u32 desc; | |
104 | u32 pixelcode; | |
105 | u32 pixels; | |
106 | char *which; | |
107 | char *what; | |
108 | ||
109 | if (fmt_model_type == SMIAPP_FRAME_FORMAT_MODEL_TYPE_2BYTE) { | |
110 | rval = smiapp_read( | |
1e73eea7 | 111 | sensor, |
ccfc97bd SA |
112 | SMIAPP_REG_U16_FRAME_FORMAT_DESCRIPTOR_2(i), |
113 | &desc); | |
114 | if (rval) | |
115 | return rval; | |
116 | ||
117 | pixelcode = | |
118 | (desc | |
119 | & SMIAPP_FRAME_FORMAT_DESC_2_PIXELCODE_MASK) | |
120 | >> SMIAPP_FRAME_FORMAT_DESC_2_PIXELCODE_SHIFT; | |
121 | pixels = desc & SMIAPP_FRAME_FORMAT_DESC_2_PIXELS_MASK; | |
122 | } else if (fmt_model_type | |
123 | == SMIAPP_FRAME_FORMAT_MODEL_TYPE_4BYTE) { | |
124 | rval = smiapp_read( | |
1e73eea7 | 125 | sensor, |
ccfc97bd SA |
126 | SMIAPP_REG_U32_FRAME_FORMAT_DESCRIPTOR_4(i), |
127 | &desc); | |
128 | if (rval) | |
129 | return rval; | |
130 | ||
131 | pixelcode = | |
132 | (desc | |
133 | & SMIAPP_FRAME_FORMAT_DESC_4_PIXELCODE_MASK) | |
134 | >> SMIAPP_FRAME_FORMAT_DESC_4_PIXELCODE_SHIFT; | |
135 | pixels = desc & SMIAPP_FRAME_FORMAT_DESC_4_PIXELS_MASK; | |
136 | } else { | |
137 | dev_dbg(&client->dev, | |
138 | "invalid frame format model type %d\n", | |
139 | fmt_model_type); | |
140 | return -EINVAL; | |
141 | } | |
142 | ||
143 | if (i < ncol_desc) | |
144 | which = "columns"; | |
145 | else | |
146 | which = "rows"; | |
147 | ||
148 | switch (pixelcode) { | |
149 | case SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_EMBEDDED: | |
150 | what = "embedded"; | |
151 | break; | |
152 | case SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_DUMMY: | |
153 | what = "dummy"; | |
154 | break; | |
155 | case SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_BLACK: | |
156 | what = "black"; | |
157 | break; | |
158 | case SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_DARK: | |
159 | what = "dark"; | |
160 | break; | |
161 | case SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_VISIBLE: | |
162 | what = "visible"; | |
163 | break; | |
164 | default: | |
165 | what = "invalid"; | |
166 | dev_dbg(&client->dev, "pixelcode %d\n", pixelcode); | |
167 | break; | |
168 | } | |
169 | ||
170 | dev_dbg(&client->dev, "%s pixels: %d %s\n", | |
171 | what, pixels, which); | |
172 | ||
173 | if (i < ncol_desc) | |
174 | continue; | |
175 | ||
176 | /* Handle row descriptors */ | |
177 | if (pixelcode | |
178 | == SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_EMBEDDED) { | |
179 | embedded_start = line_count; | |
180 | } else { | |
181 | if (pixelcode == SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_VISIBLE | |
182 | || pixels >= sensor->limits[SMIAPP_LIMIT_MIN_FRAME_LENGTH_LINES] / 2) | |
183 | image_start = line_count; | |
184 | if (embedded_start != -1 && embedded_end == -1) | |
185 | embedded_end = line_count; | |
186 | } | |
187 | line_count += pixels; | |
188 | } | |
189 | ||
190 | if (embedded_start == -1 || embedded_end == -1) { | |
191 | embedded_start = 0; | |
192 | embedded_end = 0; | |
193 | } | |
194 | ||
195 | dev_dbg(&client->dev, "embedded data from lines %d to %d\n", | |
196 | embedded_start, embedded_end); | |
197 | dev_dbg(&client->dev, "image data starts at line %d\n", image_start); | |
198 | ||
199 | return 0; | |
200 | } | |
201 | ||
202 | static int smiapp_pll_configure(struct smiapp_sensor *sensor) | |
203 | { | |
ccfc97bd SA |
204 | struct smiapp_pll *pll = &sensor->pll; |
205 | int rval; | |
206 | ||
207 | rval = smiapp_write( | |
1e73eea7 | 208 | sensor, SMIAPP_REG_U16_VT_PIX_CLK_DIV, pll->vt_pix_clk_div); |
ccfc97bd SA |
209 | if (rval < 0) |
210 | return rval; | |
211 | ||
212 | rval = smiapp_write( | |
1e73eea7 | 213 | sensor, SMIAPP_REG_U16_VT_SYS_CLK_DIV, pll->vt_sys_clk_div); |
ccfc97bd SA |
214 | if (rval < 0) |
215 | return rval; | |
216 | ||
217 | rval = smiapp_write( | |
1e73eea7 | 218 | sensor, SMIAPP_REG_U16_PRE_PLL_CLK_DIV, pll->pre_pll_clk_div); |
ccfc97bd SA |
219 | if (rval < 0) |
220 | return rval; | |
221 | ||
222 | rval = smiapp_write( | |
1e73eea7 | 223 | sensor, SMIAPP_REG_U16_PLL_MULTIPLIER, pll->pll_multiplier); |
ccfc97bd SA |
224 | if (rval < 0) |
225 | return rval; | |
226 | ||
227 | /* Lane op clock ratio does not apply here. */ | |
228 | rval = smiapp_write( | |
1e73eea7 | 229 | sensor, SMIAPP_REG_U32_REQUESTED_LINK_BIT_RATE_MBPS, |
ccfc97bd SA |
230 | DIV_ROUND_UP(pll->op_sys_clk_freq_hz, 1000000 / 256 / 256)); |
231 | if (rval < 0 || sensor->minfo.smiapp_profile == SMIAPP_PROFILE_0) | |
232 | return rval; | |
233 | ||
234 | rval = smiapp_write( | |
1e73eea7 | 235 | sensor, SMIAPP_REG_U16_OP_PIX_CLK_DIV, pll->op_pix_clk_div); |
ccfc97bd SA |
236 | if (rval < 0) |
237 | return rval; | |
238 | ||
239 | return smiapp_write( | |
1e73eea7 | 240 | sensor, SMIAPP_REG_U16_OP_SYS_CLK_DIV, pll->op_sys_clk_div); |
ccfc97bd SA |
241 | } |
242 | ||
243 | static int smiapp_pll_update(struct smiapp_sensor *sensor) | |
244 | { | |
245 | struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); | |
246 | struct smiapp_pll_limits lim = { | |
247 | .min_pre_pll_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_PRE_PLL_CLK_DIV], | |
248 | .max_pre_pll_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_PRE_PLL_CLK_DIV], | |
249 | .min_pll_ip_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_PLL_IP_FREQ_HZ], | |
250 | .max_pll_ip_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_PLL_IP_FREQ_HZ], | |
251 | .min_pll_multiplier = sensor->limits[SMIAPP_LIMIT_MIN_PLL_MULTIPLIER], | |
252 | .max_pll_multiplier = sensor->limits[SMIAPP_LIMIT_MAX_PLL_MULTIPLIER], | |
253 | .min_pll_op_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_PLL_OP_FREQ_HZ], | |
254 | .max_pll_op_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_PLL_OP_FREQ_HZ], | |
255 | ||
6ec84a28 LP |
256 | .op.min_sys_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_OP_SYS_CLK_DIV], |
257 | .op.max_sys_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_OP_SYS_CLK_DIV], | |
258 | .op.min_pix_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_OP_PIX_CLK_DIV], | |
259 | .op.max_pix_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_OP_PIX_CLK_DIV], | |
260 | .op.min_sys_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_OP_SYS_CLK_FREQ_HZ], | |
261 | .op.max_sys_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_OP_SYS_CLK_FREQ_HZ], | |
262 | .op.min_pix_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_OP_PIX_CLK_FREQ_HZ], | |
263 | .op.max_pix_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_OP_PIX_CLK_FREQ_HZ], | |
264 | ||
265 | .vt.min_sys_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_VT_SYS_CLK_DIV], | |
266 | .vt.max_sys_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_VT_SYS_CLK_DIV], | |
267 | .vt.min_pix_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_VT_PIX_CLK_DIV], | |
268 | .vt.max_pix_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_VT_PIX_CLK_DIV], | |
269 | .vt.min_sys_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_VT_SYS_CLK_FREQ_HZ], | |
270 | .vt.max_sys_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_VT_SYS_CLK_FREQ_HZ], | |
271 | .vt.min_pix_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_VT_PIX_CLK_FREQ_HZ], | |
272 | .vt.max_pix_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_VT_PIX_CLK_FREQ_HZ], | |
ccfc97bd SA |
273 | |
274 | .min_line_length_pck_bin = sensor->limits[SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK_BIN], | |
275 | .min_line_length_pck = sensor->limits[SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK], | |
276 | }; | |
277 | struct smiapp_pll *pll = &sensor->pll; | |
278 | int rval; | |
279 | ||
ccfc97bd SA |
280 | if (sensor->minfo.smiapp_profile == SMIAPP_PROFILE_0) { |
281 | /* | |
282 | * Fill in operational clock divisors limits from the | |
283 | * video timing ones. On profile 0 sensors the | |
284 | * requirements regarding them are essentially the | |
285 | * same as on VT ones. | |
286 | */ | |
6ec84a28 | 287 | lim.op = lim.vt; |
ccfc97bd SA |
288 | } |
289 | ||
ccfc97bd SA |
290 | pll->binning_horizontal = sensor->binning_horizontal; |
291 | pll->binning_vertical = sensor->binning_vertical; | |
292 | pll->link_freq = | |
293 | sensor->link_freq->qmenu_int[sensor->link_freq->val]; | |
294 | pll->scale_m = sensor->scale_m; | |
ccfc97bd SA |
295 | pll->bits_per_pixel = sensor->csi_format->compressed; |
296 | ||
297 | rval = smiapp_pll_calculate(&client->dev, &lim, pll); | |
298 | if (rval < 0) | |
299 | return rval; | |
300 | ||
a328e7e3 SA |
301 | __v4l2_ctrl_s_ctrl_int64(sensor->pixel_rate_parray, |
302 | pll->vt_pix_clk_freq_hz); | |
303 | __v4l2_ctrl_s_ctrl_int64(sensor->pixel_rate_csi, pll->pixel_rate_csi); | |
ccfc97bd SA |
304 | |
305 | return 0; | |
306 | } | |
307 | ||
308 | ||
309 | /* | |
310 | * | |
311 | * V4L2 Controls handling | |
312 | * | |
313 | */ | |
314 | ||
315 | static void __smiapp_update_exposure_limits(struct smiapp_sensor *sensor) | |
316 | { | |
317 | struct v4l2_ctrl *ctrl = sensor->exposure; | |
318 | int max; | |
319 | ||
320 | max = sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].height | |
321 | + sensor->vblank->val | |
322 | - sensor->limits[SMIAPP_LIMIT_COARSE_INTEGRATION_TIME_MAX_MARGIN]; | |
323 | ||
e47a81d8 | 324 | __v4l2_ctrl_modify_range(ctrl, ctrl->minimum, max, ctrl->step, max); |
ccfc97bd SA |
325 | } |
326 | ||
327 | /* | |
328 | * Order matters. | |
329 | * | |
330 | * 1. Bits-per-pixel, descending. | |
331 | * 2. Bits-per-pixel compressed, descending. | |
332 | * 3. Pixel order, same as in pixel_order_str. Formats for all four pixel | |
333 | * orders must be defined. | |
334 | */ | |
335 | static const struct smiapp_csi_data_format smiapp_csi_data_formats[] = { | |
336 | { V4L2_MBUS_FMT_SGRBG12_1X12, 12, 12, SMIAPP_PIXEL_ORDER_GRBG, }, | |
337 | { V4L2_MBUS_FMT_SRGGB12_1X12, 12, 12, SMIAPP_PIXEL_ORDER_RGGB, }, | |
338 | { V4L2_MBUS_FMT_SBGGR12_1X12, 12, 12, SMIAPP_PIXEL_ORDER_BGGR, }, | |
339 | { V4L2_MBUS_FMT_SGBRG12_1X12, 12, 12, SMIAPP_PIXEL_ORDER_GBRG, }, | |
340 | { V4L2_MBUS_FMT_SGRBG10_1X10, 10, 10, SMIAPP_PIXEL_ORDER_GRBG, }, | |
341 | { V4L2_MBUS_FMT_SRGGB10_1X10, 10, 10, SMIAPP_PIXEL_ORDER_RGGB, }, | |
342 | { V4L2_MBUS_FMT_SBGGR10_1X10, 10, 10, SMIAPP_PIXEL_ORDER_BGGR, }, | |
343 | { V4L2_MBUS_FMT_SGBRG10_1X10, 10, 10, SMIAPP_PIXEL_ORDER_GBRG, }, | |
344 | { V4L2_MBUS_FMT_SGRBG10_DPCM8_1X8, 10, 8, SMIAPP_PIXEL_ORDER_GRBG, }, | |
345 | { V4L2_MBUS_FMT_SRGGB10_DPCM8_1X8, 10, 8, SMIAPP_PIXEL_ORDER_RGGB, }, | |
346 | { V4L2_MBUS_FMT_SBGGR10_DPCM8_1X8, 10, 8, SMIAPP_PIXEL_ORDER_BGGR, }, | |
347 | { V4L2_MBUS_FMT_SGBRG10_DPCM8_1X8, 10, 8, SMIAPP_PIXEL_ORDER_GBRG, }, | |
b8cc8d7a SA |
348 | { V4L2_MBUS_FMT_SGRBG8_1X8, 8, 8, SMIAPP_PIXEL_ORDER_GRBG, }, |
349 | { V4L2_MBUS_FMT_SRGGB8_1X8, 8, 8, SMIAPP_PIXEL_ORDER_RGGB, }, | |
350 | { V4L2_MBUS_FMT_SBGGR8_1X8, 8, 8, SMIAPP_PIXEL_ORDER_BGGR, }, | |
351 | { V4L2_MBUS_FMT_SGBRG8_1X8, 8, 8, SMIAPP_PIXEL_ORDER_GBRG, }, | |
ccfc97bd SA |
352 | }; |
353 | ||
354 | const char *pixel_order_str[] = { "GRBG", "RGGB", "BGGR", "GBRG" }; | |
355 | ||
356 | #define to_csi_format_idx(fmt) (((unsigned long)(fmt) \ | |
357 | - (unsigned long)smiapp_csi_data_formats) \ | |
358 | / sizeof(*smiapp_csi_data_formats)) | |
359 | ||
360 | static u32 smiapp_pixel_order(struct smiapp_sensor *sensor) | |
361 | { | |
362 | struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); | |
363 | int flip = 0; | |
364 | ||
365 | if (sensor->hflip) { | |
366 | if (sensor->hflip->val) | |
367 | flip |= SMIAPP_IMAGE_ORIENTATION_HFLIP; | |
368 | ||
369 | if (sensor->vflip->val) | |
370 | flip |= SMIAPP_IMAGE_ORIENTATION_VFLIP; | |
371 | } | |
372 | ||
373 | flip ^= sensor->hvflip_inv_mask; | |
374 | ||
375 | dev_dbg(&client->dev, "flip %d\n", flip); | |
376 | return sensor->default_pixel_order ^ flip; | |
377 | } | |
378 | ||
379 | static void smiapp_update_mbus_formats(struct smiapp_sensor *sensor) | |
380 | { | |
381 | struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); | |
382 | unsigned int csi_format_idx = | |
383 | to_csi_format_idx(sensor->csi_format) & ~3; | |
384 | unsigned int internal_csi_format_idx = | |
385 | to_csi_format_idx(sensor->internal_csi_format) & ~3; | |
386 | unsigned int pixel_order = smiapp_pixel_order(sensor); | |
387 | ||
388 | sensor->mbus_frame_fmts = | |
389 | sensor->default_mbus_frame_fmts << pixel_order; | |
390 | sensor->csi_format = | |
391 | &smiapp_csi_data_formats[csi_format_idx + pixel_order]; | |
392 | sensor->internal_csi_format = | |
393 | &smiapp_csi_data_formats[internal_csi_format_idx | |
394 | + pixel_order]; | |
395 | ||
396 | BUG_ON(max(internal_csi_format_idx, csi_format_idx) + pixel_order | |
397 | >= ARRAY_SIZE(smiapp_csi_data_formats)); | |
ccfc97bd SA |
398 | |
399 | dev_dbg(&client->dev, "new pixel order %s\n", | |
400 | pixel_order_str[pixel_order]); | |
401 | } | |
402 | ||
0e2a6b7f SA |
403 | static const char * const smiapp_test_patterns[] = { |
404 | "Disabled", | |
405 | "Solid Colour", | |
406 | "Eight Vertical Colour Bars", | |
407 | "Colour Bars With Fade to Grey", | |
408 | "Pseudorandom Sequence (PN9)", | |
409 | }; | |
410 | ||
ccfc97bd SA |
411 | static int smiapp_set_ctrl(struct v4l2_ctrl *ctrl) |
412 | { | |
413 | struct smiapp_sensor *sensor = | |
414 | container_of(ctrl->handler, struct smiapp_subdev, ctrl_handler) | |
415 | ->sensor; | |
ccfc97bd SA |
416 | u32 orient = 0; |
417 | int exposure; | |
418 | int rval; | |
419 | ||
420 | switch (ctrl->id) { | |
421 | case V4L2_CID_ANALOGUE_GAIN: | |
422 | return smiapp_write( | |
1e73eea7 | 423 | sensor, |
ccfc97bd SA |
424 | SMIAPP_REG_U16_ANALOGUE_GAIN_CODE_GLOBAL, ctrl->val); |
425 | ||
426 | case V4L2_CID_EXPOSURE: | |
427 | return smiapp_write( | |
1e73eea7 | 428 | sensor, |
ccfc97bd SA |
429 | SMIAPP_REG_U16_COARSE_INTEGRATION_TIME, ctrl->val); |
430 | ||
431 | case V4L2_CID_HFLIP: | |
432 | case V4L2_CID_VFLIP: | |
433 | if (sensor->streaming) | |
434 | return -EBUSY; | |
435 | ||
436 | if (sensor->hflip->val) | |
437 | orient |= SMIAPP_IMAGE_ORIENTATION_HFLIP; | |
438 | ||
439 | if (sensor->vflip->val) | |
440 | orient |= SMIAPP_IMAGE_ORIENTATION_VFLIP; | |
441 | ||
442 | orient ^= sensor->hvflip_inv_mask; | |
1e73eea7 | 443 | rval = smiapp_write(sensor, |
ccfc97bd SA |
444 | SMIAPP_REG_U8_IMAGE_ORIENTATION, |
445 | orient); | |
446 | if (rval < 0) | |
447 | return rval; | |
448 | ||
449 | smiapp_update_mbus_formats(sensor); | |
450 | ||
451 | return 0; | |
452 | ||
453 | case V4L2_CID_VBLANK: | |
454 | exposure = sensor->exposure->val; | |
455 | ||
456 | __smiapp_update_exposure_limits(sensor); | |
457 | ||
458 | if (exposure > sensor->exposure->maximum) { | |
459 | sensor->exposure->val = | |
460 | sensor->exposure->maximum; | |
461 | rval = smiapp_set_ctrl( | |
462 | sensor->exposure); | |
463 | if (rval < 0) | |
464 | return rval; | |
465 | } | |
466 | ||
467 | return smiapp_write( | |
1e73eea7 | 468 | sensor, SMIAPP_REG_U16_FRAME_LENGTH_LINES, |
ccfc97bd SA |
469 | sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].height |
470 | + ctrl->val); | |
471 | ||
472 | case V4L2_CID_HBLANK: | |
473 | return smiapp_write( | |
1e73eea7 | 474 | sensor, SMIAPP_REG_U16_LINE_LENGTH_PCK, |
ccfc97bd SA |
475 | sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].width |
476 | + ctrl->val); | |
477 | ||
478 | case V4L2_CID_LINK_FREQ: | |
479 | if (sensor->streaming) | |
480 | return -EBUSY; | |
481 | ||
482 | return smiapp_pll_update(sensor); | |
483 | ||
0e2a6b7f SA |
484 | case V4L2_CID_TEST_PATTERN: { |
485 | unsigned int i; | |
486 | ||
487 | for (i = 0; i < ARRAY_SIZE(sensor->test_data); i++) | |
488 | v4l2_ctrl_activate( | |
489 | sensor->test_data[i], | |
490 | ctrl->val == | |
491 | V4L2_SMIAPP_TEST_PATTERN_MODE_SOLID_COLOUR); | |
492 | ||
493 | return smiapp_write( | |
494 | sensor, SMIAPP_REG_U16_TEST_PATTERN_MODE, ctrl->val); | |
495 | } | |
496 | ||
497 | case V4L2_CID_TEST_PATTERN_RED: | |
498 | return smiapp_write( | |
499 | sensor, SMIAPP_REG_U16_TEST_DATA_RED, ctrl->val); | |
500 | ||
501 | case V4L2_CID_TEST_PATTERN_GREENR: | |
502 | return smiapp_write( | |
503 | sensor, SMIAPP_REG_U16_TEST_DATA_GREENR, ctrl->val); | |
504 | ||
505 | case V4L2_CID_TEST_PATTERN_BLUE: | |
506 | return smiapp_write( | |
507 | sensor, SMIAPP_REG_U16_TEST_DATA_BLUE, ctrl->val); | |
508 | ||
509 | case V4L2_CID_TEST_PATTERN_GREENB: | |
510 | return smiapp_write( | |
511 | sensor, SMIAPP_REG_U16_TEST_DATA_GREENB, ctrl->val); | |
512 | ||
a328e7e3 SA |
513 | case V4L2_CID_PIXEL_RATE: |
514 | /* For v4l2_ctrl_s_ctrl_int64() used internally. */ | |
515 | return 0; | |
516 | ||
ccfc97bd SA |
517 | default: |
518 | return -EINVAL; | |
519 | } | |
520 | } | |
521 | ||
522 | static const struct v4l2_ctrl_ops smiapp_ctrl_ops = { | |
523 | .s_ctrl = smiapp_set_ctrl, | |
524 | }; | |
525 | ||
526 | static int smiapp_init_controls(struct smiapp_sensor *sensor) | |
527 | { | |
528 | struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); | |
0e2a6b7f | 529 | unsigned int max, i; |
ccfc97bd SA |
530 | int rval; |
531 | ||
0e2a6b7f | 532 | rval = v4l2_ctrl_handler_init(&sensor->pixel_array->ctrl_handler, 12); |
ccfc97bd SA |
533 | if (rval) |
534 | return rval; | |
535 | sensor->pixel_array->ctrl_handler.lock = &sensor->mutex; | |
536 | ||
537 | sensor->analog_gain = v4l2_ctrl_new_std( | |
538 | &sensor->pixel_array->ctrl_handler, &smiapp_ctrl_ops, | |
539 | V4L2_CID_ANALOGUE_GAIN, | |
540 | sensor->limits[SMIAPP_LIMIT_ANALOGUE_GAIN_CODE_MIN], | |
541 | sensor->limits[SMIAPP_LIMIT_ANALOGUE_GAIN_CODE_MAX], | |
542 | max(sensor->limits[SMIAPP_LIMIT_ANALOGUE_GAIN_CODE_STEP], 1U), | |
543 | sensor->limits[SMIAPP_LIMIT_ANALOGUE_GAIN_CODE_MIN]); | |
544 | ||
545 | /* Exposure limits will be updated soon, use just something here. */ | |
546 | sensor->exposure = v4l2_ctrl_new_std( | |
547 | &sensor->pixel_array->ctrl_handler, &smiapp_ctrl_ops, | |
548 | V4L2_CID_EXPOSURE, 0, 0, 1, 0); | |
549 | ||
550 | sensor->hflip = v4l2_ctrl_new_std( | |
551 | &sensor->pixel_array->ctrl_handler, &smiapp_ctrl_ops, | |
552 | V4L2_CID_HFLIP, 0, 1, 1, 0); | |
553 | sensor->vflip = v4l2_ctrl_new_std( | |
554 | &sensor->pixel_array->ctrl_handler, &smiapp_ctrl_ops, | |
555 | V4L2_CID_VFLIP, 0, 1, 1, 0); | |
556 | ||
557 | sensor->vblank = v4l2_ctrl_new_std( | |
558 | &sensor->pixel_array->ctrl_handler, &smiapp_ctrl_ops, | |
559 | V4L2_CID_VBLANK, 0, 1, 1, 0); | |
560 | ||
561 | if (sensor->vblank) | |
562 | sensor->vblank->flags |= V4L2_CTRL_FLAG_UPDATE; | |
563 | ||
564 | sensor->hblank = v4l2_ctrl_new_std( | |
565 | &sensor->pixel_array->ctrl_handler, &smiapp_ctrl_ops, | |
566 | V4L2_CID_HBLANK, 0, 1, 1, 0); | |
567 | ||
568 | if (sensor->hblank) | |
569 | sensor->hblank->flags |= V4L2_CTRL_FLAG_UPDATE; | |
570 | ||
571 | sensor->pixel_rate_parray = v4l2_ctrl_new_std( | |
572 | &sensor->pixel_array->ctrl_handler, &smiapp_ctrl_ops, | |
0ba2aeb6 | 573 | V4L2_CID_PIXEL_RATE, 1, INT_MAX, 1, 1); |
ccfc97bd | 574 | |
0e2a6b7f SA |
575 | v4l2_ctrl_new_std_menu_items(&sensor->pixel_array->ctrl_handler, |
576 | &smiapp_ctrl_ops, V4L2_CID_TEST_PATTERN, | |
577 | ARRAY_SIZE(smiapp_test_patterns) - 1, | |
578 | 0, 0, smiapp_test_patterns); | |
579 | ||
580 | for (i = 0; i < ARRAY_SIZE(sensor->test_data); i++) { | |
581 | int max_value = (1 << sensor->csi_format->width) - 1; | |
582 | sensor->test_data[i] = | |
583 | v4l2_ctrl_new_std( | |
584 | &sensor->pixel_array->ctrl_handler, | |
585 | &smiapp_ctrl_ops, V4L2_CID_TEST_PATTERN_RED + i, | |
586 | 0, max_value, 1, max_value); | |
587 | } | |
588 | ||
ccfc97bd SA |
589 | if (sensor->pixel_array->ctrl_handler.error) { |
590 | dev_err(&client->dev, | |
591 | "pixel array controls initialization failed (%d)\n", | |
592 | sensor->pixel_array->ctrl_handler.error); | |
593 | rval = sensor->pixel_array->ctrl_handler.error; | |
594 | goto error; | |
595 | } | |
596 | ||
597 | sensor->pixel_array->sd.ctrl_handler = | |
598 | &sensor->pixel_array->ctrl_handler; | |
599 | ||
600 | v4l2_ctrl_cluster(2, &sensor->hflip); | |
601 | ||
602 | rval = v4l2_ctrl_handler_init(&sensor->src->ctrl_handler, 0); | |
603 | if (rval) | |
604 | goto error; | |
605 | sensor->src->ctrl_handler.lock = &sensor->mutex; | |
606 | ||
06b491fb | 607 | for (max = 0; sensor->platform_data->op_sys_clock[max + 1]; max++); |
ccfc97bd | 608 | |
06b491fb SA |
609 | sensor->link_freq = v4l2_ctrl_new_int_menu( |
610 | &sensor->src->ctrl_handler, &smiapp_ctrl_ops, | |
611 | V4L2_CID_LINK_FREQ, max, 0, | |
612 | sensor->platform_data->op_sys_clock); | |
ccfc97bd SA |
613 | |
614 | sensor->pixel_rate_csi = v4l2_ctrl_new_std( | |
615 | &sensor->src->ctrl_handler, &smiapp_ctrl_ops, | |
0ba2aeb6 | 616 | V4L2_CID_PIXEL_RATE, 1, INT_MAX, 1, 1); |
ccfc97bd SA |
617 | |
618 | if (sensor->src->ctrl_handler.error) { | |
619 | dev_err(&client->dev, | |
620 | "src controls initialization failed (%d)\n", | |
621 | sensor->src->ctrl_handler.error); | |
622 | rval = sensor->src->ctrl_handler.error; | |
623 | goto error; | |
624 | } | |
625 | ||
626 | sensor->src->sd.ctrl_handler = | |
627 | &sensor->src->ctrl_handler; | |
628 | ||
629 | return 0; | |
630 | ||
631 | error: | |
632 | v4l2_ctrl_handler_free(&sensor->pixel_array->ctrl_handler); | |
633 | v4l2_ctrl_handler_free(&sensor->src->ctrl_handler); | |
634 | ||
635 | return rval; | |
636 | } | |
637 | ||
638 | static void smiapp_free_controls(struct smiapp_sensor *sensor) | |
639 | { | |
640 | unsigned int i; | |
641 | ||
642 | for (i = 0; i < sensor->ssds_used; i++) | |
643 | v4l2_ctrl_handler_free(&sensor->ssds[i].ctrl_handler); | |
644 | } | |
645 | ||
646 | static int smiapp_get_limits(struct smiapp_sensor *sensor, int const *limit, | |
647 | unsigned int n) | |
648 | { | |
649 | struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); | |
650 | unsigned int i; | |
651 | u32 val; | |
652 | int rval; | |
653 | ||
654 | for (i = 0; i < n; i++) { | |
655 | rval = smiapp_read( | |
1e73eea7 | 656 | sensor, smiapp_reg_limits[limit[i]].addr, &val); |
ccfc97bd SA |
657 | if (rval) |
658 | return rval; | |
659 | sensor->limits[limit[i]] = val; | |
393cbd8d | 660 | dev_dbg(&client->dev, "0x%8.8x \"%s\" = %u, 0x%x\n", |
ccfc97bd SA |
661 | smiapp_reg_limits[limit[i]].addr, |
662 | smiapp_reg_limits[limit[i]].what, val, val); | |
663 | } | |
664 | ||
665 | return 0; | |
666 | } | |
667 | ||
668 | static int smiapp_get_all_limits(struct smiapp_sensor *sensor) | |
669 | { | |
670 | unsigned int i; | |
671 | int rval; | |
672 | ||
673 | for (i = 0; i < SMIAPP_LIMIT_LAST; i++) { | |
674 | rval = smiapp_get_limits(sensor, &i, 1); | |
675 | if (rval < 0) | |
676 | return rval; | |
677 | } | |
678 | ||
679 | if (sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN] == 0) | |
680 | smiapp_replace_limit(sensor, SMIAPP_LIMIT_SCALER_N_MIN, 16); | |
681 | ||
682 | return 0; | |
683 | } | |
684 | ||
685 | static int smiapp_get_limits_binning(struct smiapp_sensor *sensor) | |
686 | { | |
3de886e0 | 687 | struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); |
ccfc97bd SA |
688 | static u32 const limits[] = { |
689 | SMIAPP_LIMIT_MIN_FRAME_LENGTH_LINES_BIN, | |
690 | SMIAPP_LIMIT_MAX_FRAME_LENGTH_LINES_BIN, | |
691 | SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK_BIN, | |
692 | SMIAPP_LIMIT_MAX_LINE_LENGTH_PCK_BIN, | |
693 | SMIAPP_LIMIT_MIN_LINE_BLANKING_PCK_BIN, | |
694 | SMIAPP_LIMIT_FINE_INTEGRATION_TIME_MIN_BIN, | |
695 | SMIAPP_LIMIT_FINE_INTEGRATION_TIME_MAX_MARGIN_BIN, | |
696 | }; | |
697 | static u32 const limits_replace[] = { | |
698 | SMIAPP_LIMIT_MIN_FRAME_LENGTH_LINES, | |
699 | SMIAPP_LIMIT_MAX_FRAME_LENGTH_LINES, | |
700 | SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK, | |
701 | SMIAPP_LIMIT_MAX_LINE_LENGTH_PCK, | |
702 | SMIAPP_LIMIT_MIN_LINE_BLANKING_PCK, | |
703 | SMIAPP_LIMIT_FINE_INTEGRATION_TIME_MIN, | |
704 | SMIAPP_LIMIT_FINE_INTEGRATION_TIME_MAX_MARGIN, | |
705 | }; | |
3de886e0 SA |
706 | unsigned int i; |
707 | int rval; | |
ccfc97bd SA |
708 | |
709 | if (sensor->limits[SMIAPP_LIMIT_BINNING_CAPABILITY] == | |
710 | SMIAPP_BINNING_CAPABILITY_NO) { | |
ccfc97bd SA |
711 | for (i = 0; i < ARRAY_SIZE(limits); i++) |
712 | sensor->limits[limits[i]] = | |
713 | sensor->limits[limits_replace[i]]; | |
714 | ||
715 | return 0; | |
716 | } | |
717 | ||
3de886e0 SA |
718 | rval = smiapp_get_limits(sensor, limits, ARRAY_SIZE(limits)); |
719 | if (rval < 0) | |
720 | return rval; | |
721 | ||
722 | /* | |
723 | * Sanity check whether the binning limits are valid. If not, | |
724 | * use the non-binning ones. | |
725 | */ | |
726 | if (sensor->limits[SMIAPP_LIMIT_MIN_FRAME_LENGTH_LINES_BIN] | |
727 | && sensor->limits[SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK_BIN] | |
728 | && sensor->limits[SMIAPP_LIMIT_MIN_LINE_BLANKING_PCK_BIN]) | |
729 | return 0; | |
730 | ||
731 | for (i = 0; i < ARRAY_SIZE(limits); i++) { | |
732 | dev_dbg(&client->dev, | |
733 | "replace limit 0x%8.8x \"%s\" = %d, 0x%x\n", | |
734 | smiapp_reg_limits[limits[i]].addr, | |
735 | smiapp_reg_limits[limits[i]].what, | |
736 | sensor->limits[limits_replace[i]], | |
737 | sensor->limits[limits_replace[i]]); | |
738 | sensor->limits[limits[i]] = | |
739 | sensor->limits[limits_replace[i]]; | |
740 | } | |
741 | ||
742 | return 0; | |
ccfc97bd SA |
743 | } |
744 | ||
745 | static int smiapp_get_mbus_formats(struct smiapp_sensor *sensor) | |
746 | { | |
747 | struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); | |
748 | unsigned int type, n; | |
749 | unsigned int i, pixel_order; | |
750 | int rval; | |
751 | ||
752 | rval = smiapp_read( | |
1e73eea7 | 753 | sensor, SMIAPP_REG_U8_DATA_FORMAT_MODEL_TYPE, &type); |
ccfc97bd SA |
754 | if (rval) |
755 | return rval; | |
756 | ||
757 | dev_dbg(&client->dev, "data_format_model_type %d\n", type); | |
758 | ||
1e73eea7 | 759 | rval = smiapp_read(sensor, SMIAPP_REG_U8_PIXEL_ORDER, |
ccfc97bd SA |
760 | &pixel_order); |
761 | if (rval) | |
762 | return rval; | |
763 | ||
764 | if (pixel_order >= ARRAY_SIZE(pixel_order_str)) { | |
765 | dev_dbg(&client->dev, "bad pixel order %d\n", pixel_order); | |
766 | return -EINVAL; | |
767 | } | |
768 | ||
769 | dev_dbg(&client->dev, "pixel order %d (%s)\n", pixel_order, | |
770 | pixel_order_str[pixel_order]); | |
771 | ||
772 | switch (type) { | |
773 | case SMIAPP_DATA_FORMAT_MODEL_TYPE_NORMAL: | |
774 | n = SMIAPP_DATA_FORMAT_MODEL_TYPE_NORMAL_N; | |
775 | break; | |
776 | case SMIAPP_DATA_FORMAT_MODEL_TYPE_EXTENDED: | |
777 | n = SMIAPP_DATA_FORMAT_MODEL_TYPE_EXTENDED_N; | |
778 | break; | |
779 | default: | |
780 | return -EINVAL; | |
781 | } | |
782 | ||
783 | sensor->default_pixel_order = pixel_order; | |
784 | sensor->mbus_frame_fmts = 0; | |
785 | ||
786 | for (i = 0; i < n; i++) { | |
787 | unsigned int fmt, j; | |
788 | ||
789 | rval = smiapp_read( | |
1e73eea7 | 790 | sensor, |
ccfc97bd SA |
791 | SMIAPP_REG_U16_DATA_FORMAT_DESCRIPTOR(i), &fmt); |
792 | if (rval) | |
793 | return rval; | |
794 | ||
48cb4a5d SA |
795 | dev_dbg(&client->dev, "%u: bpp %u, compressed %u\n", |
796 | i, fmt >> 8, (u8)fmt); | |
ccfc97bd SA |
797 | |
798 | for (j = 0; j < ARRAY_SIZE(smiapp_csi_data_formats); j++) { | |
799 | const struct smiapp_csi_data_format *f = | |
800 | &smiapp_csi_data_formats[j]; | |
801 | ||
802 | if (f->pixel_order != SMIAPP_PIXEL_ORDER_GRBG) | |
803 | continue; | |
804 | ||
805 | if (f->width != fmt >> 8 || f->compressed != (u8)fmt) | |
806 | continue; | |
807 | ||
808 | dev_dbg(&client->dev, "jolly good! %d\n", j); | |
809 | ||
810 | sensor->default_mbus_frame_fmts |= 1 << j; | |
f67e1573 SA |
811 | if (!sensor->csi_format |
812 | || f->width > sensor->csi_format->width | |
813 | || (f->width == sensor->csi_format->width | |
814 | && f->compressed | |
815 | > sensor->csi_format->compressed)) { | |
ccfc97bd SA |
816 | sensor->csi_format = f; |
817 | sensor->internal_csi_format = f; | |
818 | } | |
819 | } | |
820 | } | |
821 | ||
822 | if (!sensor->csi_format) { | |
823 | dev_err(&client->dev, "no supported mbus code found\n"); | |
824 | return -EINVAL; | |
825 | } | |
826 | ||
827 | smiapp_update_mbus_formats(sensor); | |
828 | ||
829 | return 0; | |
830 | } | |
831 | ||
832 | static void smiapp_update_blanking(struct smiapp_sensor *sensor) | |
833 | { | |
834 | struct v4l2_ctrl *vblank = sensor->vblank; | |
835 | struct v4l2_ctrl *hblank = sensor->hblank; | |
e47a81d8 | 836 | int min, max; |
ccfc97bd | 837 | |
e47a81d8 SA |
838 | min = max_t(int, |
839 | sensor->limits[SMIAPP_LIMIT_MIN_FRAME_BLANKING_LINES], | |
840 | sensor->limits[SMIAPP_LIMIT_MIN_FRAME_LENGTH_LINES_BIN] - | |
841 | sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].height); | |
842 | max = sensor->limits[SMIAPP_LIMIT_MAX_FRAME_LENGTH_LINES_BIN] - | |
ccfc97bd SA |
843 | sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].height; |
844 | ||
e47a81d8 SA |
845 | __v4l2_ctrl_modify_range(vblank, min, max, vblank->step, min); |
846 | ||
847 | min = max_t(int, | |
848 | sensor->limits[SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK_BIN] - | |
849 | sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].width, | |
850 | sensor->limits[SMIAPP_LIMIT_MIN_LINE_BLANKING_PCK_BIN]); | |
851 | max = sensor->limits[SMIAPP_LIMIT_MAX_LINE_LENGTH_PCK_BIN] - | |
ccfc97bd SA |
852 | sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].width; |
853 | ||
e47a81d8 | 854 | __v4l2_ctrl_modify_range(hblank, min, max, hblank->step, min); |
ccfc97bd SA |
855 | |
856 | __smiapp_update_exposure_limits(sensor); | |
857 | } | |
858 | ||
859 | static int smiapp_update_mode(struct smiapp_sensor *sensor) | |
860 | { | |
861 | struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); | |
862 | unsigned int binning_mode; | |
863 | int rval; | |
864 | ||
865 | dev_dbg(&client->dev, "frame size: %dx%d\n", | |
866 | sensor->src->crop[SMIAPP_PAD_SRC].width, | |
867 | sensor->src->crop[SMIAPP_PAD_SRC].height); | |
868 | dev_dbg(&client->dev, "csi format width: %d\n", | |
869 | sensor->csi_format->width); | |
870 | ||
871 | /* Binning has to be set up here; it affects limits */ | |
872 | if (sensor->binning_horizontal == 1 && | |
873 | sensor->binning_vertical == 1) { | |
874 | binning_mode = 0; | |
875 | } else { | |
876 | u8 binning_type = | |
877 | (sensor->binning_horizontal << 4) | |
878 | | sensor->binning_vertical; | |
879 | ||
880 | rval = smiapp_write( | |
1e73eea7 | 881 | sensor, SMIAPP_REG_U8_BINNING_TYPE, binning_type); |
ccfc97bd SA |
882 | if (rval < 0) |
883 | return rval; | |
884 | ||
885 | binning_mode = 1; | |
886 | } | |
1e73eea7 | 887 | rval = smiapp_write(sensor, SMIAPP_REG_U8_BINNING_MODE, binning_mode); |
ccfc97bd SA |
888 | if (rval < 0) |
889 | return rval; | |
890 | ||
891 | /* Get updated limits due to binning */ | |
892 | rval = smiapp_get_limits_binning(sensor); | |
893 | if (rval < 0) | |
894 | return rval; | |
895 | ||
896 | rval = smiapp_pll_update(sensor); | |
897 | if (rval < 0) | |
898 | return rval; | |
899 | ||
900 | /* Output from pixel array, including blanking */ | |
901 | smiapp_update_blanking(sensor); | |
902 | ||
903 | dev_dbg(&client->dev, "vblank\t\t%d\n", sensor->vblank->val); | |
904 | dev_dbg(&client->dev, "hblank\t\t%d\n", sensor->hblank->val); | |
905 | ||
906 | dev_dbg(&client->dev, "real timeperframe\t100/%d\n", | |
907 | sensor->pll.vt_pix_clk_freq_hz / | |
908 | ((sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].width | |
909 | + sensor->hblank->val) * | |
910 | (sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].height | |
911 | + sensor->vblank->val) / 100)); | |
912 | ||
913 | return 0; | |
914 | } | |
915 | ||
916 | /* | |
917 | * | |
918 | * SMIA++ NVM handling | |
919 | * | |
920 | */ | |
921 | static int smiapp_read_nvm(struct smiapp_sensor *sensor, | |
922 | unsigned char *nvm) | |
923 | { | |
ccfc97bd | 924 | u32 i, s, p, np, v; |
04582947 | 925 | int rval = 0, rval2; |
ccfc97bd SA |
926 | |
927 | np = sensor->nvm_size / SMIAPP_NVM_PAGE_SIZE; | |
928 | for (p = 0; p < np; p++) { | |
929 | rval = smiapp_write( | |
1e73eea7 | 930 | sensor, |
ccfc97bd SA |
931 | SMIAPP_REG_U8_DATA_TRANSFER_IF_1_PAGE_SELECT, p); |
932 | if (rval) | |
933 | goto out; | |
934 | ||
1e73eea7 | 935 | rval = smiapp_write(sensor, |
ccfc97bd SA |
936 | SMIAPP_REG_U8_DATA_TRANSFER_IF_1_CTRL, |
937 | SMIAPP_DATA_TRANSFER_IF_1_CTRL_EN | | |
938 | SMIAPP_DATA_TRANSFER_IF_1_CTRL_RD_EN); | |
939 | if (rval) | |
940 | goto out; | |
941 | ||
942 | for (i = 0; i < 1000; i++) { | |
943 | rval = smiapp_read( | |
1e73eea7 | 944 | sensor, |
ccfc97bd SA |
945 | SMIAPP_REG_U8_DATA_TRANSFER_IF_1_STATUS, &s); |
946 | ||
947 | if (rval) | |
948 | goto out; | |
949 | ||
950 | if (s & SMIAPP_DATA_TRANSFER_IF_1_STATUS_RD_READY) | |
951 | break; | |
952 | ||
953 | if (--i == 0) { | |
954 | rval = -ETIMEDOUT; | |
955 | goto out; | |
956 | } | |
957 | ||
958 | } | |
959 | ||
960 | for (i = 0; i < SMIAPP_NVM_PAGE_SIZE; i++) { | |
961 | rval = smiapp_read( | |
1e73eea7 | 962 | sensor, |
ccfc97bd SA |
963 | SMIAPP_REG_U8_DATA_TRANSFER_IF_1_DATA_0 + i, |
964 | &v); | |
965 | if (rval) | |
966 | goto out; | |
967 | ||
968 | *nvm++ = v; | |
969 | } | |
970 | } | |
971 | ||
972 | out: | |
1e73eea7 | 973 | rval2 = smiapp_write(sensor, SMIAPP_REG_U8_DATA_TRANSFER_IF_1_CTRL, 0); |
ccfc97bd SA |
974 | if (rval < 0) |
975 | return rval; | |
976 | else | |
977 | return rval2; | |
978 | } | |
979 | ||
980 | /* | |
981 | * | |
982 | * SMIA++ CCI address control | |
983 | * | |
984 | */ | |
985 | static int smiapp_change_cci_addr(struct smiapp_sensor *sensor) | |
986 | { | |
987 | struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); | |
988 | int rval; | |
989 | u32 val; | |
990 | ||
991 | client->addr = sensor->platform_data->i2c_addr_dfl; | |
992 | ||
1e73eea7 | 993 | rval = smiapp_write(sensor, |
ccfc97bd SA |
994 | SMIAPP_REG_U8_CCI_ADDRESS_CONTROL, |
995 | sensor->platform_data->i2c_addr_alt << 1); | |
996 | if (rval) | |
997 | return rval; | |
998 | ||
999 | client->addr = sensor->platform_data->i2c_addr_alt; | |
1000 | ||
1001 | /* verify addr change went ok */ | |
1e73eea7 | 1002 | rval = smiapp_read(sensor, SMIAPP_REG_U8_CCI_ADDRESS_CONTROL, &val); |
ccfc97bd SA |
1003 | if (rval) |
1004 | return rval; | |
1005 | ||
1006 | if (val != sensor->platform_data->i2c_addr_alt << 1) | |
1007 | return -ENODEV; | |
1008 | ||
1009 | return 0; | |
1010 | } | |
1011 | ||
1012 | /* | |
1013 | * | |
1014 | * SMIA++ Mode Control | |
1015 | * | |
1016 | */ | |
1017 | static int smiapp_setup_flash_strobe(struct smiapp_sensor *sensor) | |
1018 | { | |
ccfc97bd SA |
1019 | struct smiapp_flash_strobe_parms *strobe_setup; |
1020 | unsigned int ext_freq = sensor->platform_data->ext_clk; | |
1021 | u32 tmp; | |
1022 | u32 strobe_adjustment; | |
1023 | u32 strobe_width_high_rs; | |
1024 | int rval; | |
1025 | ||
1026 | strobe_setup = sensor->platform_data->strobe_setup; | |
1027 | ||
1028 | /* | |
1029 | * How to calculate registers related to strobe length. Please | |
1030 | * do not change, or if you do at least know what you're | |
1031 | * doing. :-) | |
1032 | * | |
8c5dff90 | 1033 | * Sakari Ailus <sakari.ailus@iki.fi> 2010-10-25 |
ccfc97bd SA |
1034 | * |
1035 | * flash_strobe_length [us] / 10^6 = (tFlash_strobe_width_ctrl | |
1036 | * / EXTCLK freq [Hz]) * flash_strobe_adjustment | |
1037 | * | |
1038 | * tFlash_strobe_width_ctrl E N, [1 - 0xffff] | |
1039 | * flash_strobe_adjustment E N, [1 - 0xff] | |
1040 | * | |
1041 | * The formula above is written as below to keep it on one | |
1042 | * line: | |
1043 | * | |
1044 | * l / 10^6 = w / e * a | |
1045 | * | |
1046 | * Let's mark w * a by x: | |
1047 | * | |
1048 | * x = w * a | |
1049 | * | |
1050 | * Thus, we get: | |
1051 | * | |
1052 | * x = l * e / 10^6 | |
1053 | * | |
1054 | * The strobe width must be at least as long as requested, | |
1055 | * thus rounding upwards is needed. | |
1056 | * | |
1057 | * x = (l * e + 10^6 - 1) / 10^6 | |
1058 | * ----------------------------- | |
1059 | * | |
1060 | * Maximum possible accuracy is wanted at all times. Thus keep | |
1061 | * a as small as possible. | |
1062 | * | |
1063 | * Calculate a, assuming maximum w, with rounding upwards: | |
1064 | * | |
1065 | * a = (x + (2^16 - 1) - 1) / (2^16 - 1) | |
1066 | * ------------------------------------- | |
1067 | * | |
1068 | * Thus, we also get w, with that a, with rounding upwards: | |
1069 | * | |
1070 | * w = (x + a - 1) / a | |
1071 | * ------------------- | |
1072 | * | |
1073 | * To get limits: | |
1074 | * | |
1075 | * x E [1, (2^16 - 1) * (2^8 - 1)] | |
1076 | * | |
1077 | * Substituting maximum x to the original formula (with rounding), | |
1078 | * the maximum l is thus | |
1079 | * | |
1080 | * (2^16 - 1) * (2^8 - 1) * 10^6 = l * e + 10^6 - 1 | |
1081 | * | |
1082 | * l = (10^6 * (2^16 - 1) * (2^8 - 1) - 10^6 + 1) / e | |
1083 | * -------------------------------------------------- | |
1084 | * | |
1085 | * flash_strobe_length must be clamped between 1 and | |
1086 | * (10^6 * (2^16 - 1) * (2^8 - 1) - 10^6 + 1) / EXTCLK freq. | |
1087 | * | |
1088 | * Then, | |
1089 | * | |
1090 | * flash_strobe_adjustment = ((flash_strobe_length * | |
1091 | * EXTCLK freq + 10^6 - 1) / 10^6 + (2^16 - 1) - 1) / (2^16 - 1) | |
1092 | * | |
1093 | * tFlash_strobe_width_ctrl = ((flash_strobe_length * | |
1094 | * EXTCLK freq + 10^6 - 1) / 10^6 + | |
1095 | * flash_strobe_adjustment - 1) / flash_strobe_adjustment | |
1096 | */ | |
1097 | tmp = div_u64(1000000ULL * ((1 << 16) - 1) * ((1 << 8) - 1) - | |
1098 | 1000000 + 1, ext_freq); | |
1099 | strobe_setup->strobe_width_high_us = | |
1100 | clamp_t(u32, strobe_setup->strobe_width_high_us, 1, tmp); | |
1101 | ||
1102 | tmp = div_u64(((u64)strobe_setup->strobe_width_high_us * (u64)ext_freq + | |
1103 | 1000000 - 1), 1000000ULL); | |
1104 | strobe_adjustment = (tmp + (1 << 16) - 1 - 1) / ((1 << 16) - 1); | |
1105 | strobe_width_high_rs = (tmp + strobe_adjustment - 1) / | |
1106 | strobe_adjustment; | |
1107 | ||
1e73eea7 | 1108 | rval = smiapp_write(sensor, SMIAPP_REG_U8_FLASH_MODE_RS, |
ccfc97bd SA |
1109 | strobe_setup->mode); |
1110 | if (rval < 0) | |
1111 | goto out; | |
1112 | ||
1e73eea7 | 1113 | rval = smiapp_write(sensor, SMIAPP_REG_U8_FLASH_STROBE_ADJUSTMENT, |
ccfc97bd SA |
1114 | strobe_adjustment); |
1115 | if (rval < 0) | |
1116 | goto out; | |
1117 | ||
1118 | rval = smiapp_write( | |
1e73eea7 | 1119 | sensor, SMIAPP_REG_U16_TFLASH_STROBE_WIDTH_HIGH_RS_CTRL, |
ccfc97bd SA |
1120 | strobe_width_high_rs); |
1121 | if (rval < 0) | |
1122 | goto out; | |
1123 | ||
1e73eea7 | 1124 | rval = smiapp_write(sensor, SMIAPP_REG_U16_TFLASH_STROBE_DELAY_RS_CTRL, |
ccfc97bd SA |
1125 | strobe_setup->strobe_delay); |
1126 | if (rval < 0) | |
1127 | goto out; | |
1128 | ||
1e73eea7 | 1129 | rval = smiapp_write(sensor, SMIAPP_REG_U16_FLASH_STROBE_START_POINT, |
ccfc97bd SA |
1130 | strobe_setup->stobe_start_point); |
1131 | if (rval < 0) | |
1132 | goto out; | |
1133 | ||
1e73eea7 | 1134 | rval = smiapp_write(sensor, SMIAPP_REG_U8_FLASH_TRIGGER_RS, |
ccfc97bd SA |
1135 | strobe_setup->trigger); |
1136 | ||
1137 | out: | |
1138 | sensor->platform_data->strobe_setup->trigger = 0; | |
1139 | ||
1140 | return rval; | |
1141 | } | |
1142 | ||
1143 | /* ----------------------------------------------------------------------------- | |
1144 | * Power management | |
1145 | */ | |
1146 | ||
1147 | static int smiapp_power_on(struct smiapp_sensor *sensor) | |
1148 | { | |
1149 | struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); | |
1150 | unsigned int sleep; | |
1151 | int rval; | |
1152 | ||
1153 | rval = regulator_enable(sensor->vana); | |
1154 | if (rval) { | |
1155 | dev_err(&client->dev, "failed to enable vana regulator\n"); | |
1156 | return rval; | |
1157 | } | |
1158 | usleep_range(1000, 1000); | |
1159 | ||
2547428d SA |
1160 | if (sensor->platform_data->set_xclk) |
1161 | rval = sensor->platform_data->set_xclk( | |
1162 | &sensor->src->sd, sensor->platform_data->ext_clk); | |
1163 | else | |
d0aae004 | 1164 | rval = clk_prepare_enable(sensor->ext_clk); |
ccfc97bd | 1165 | if (rval < 0) { |
d0aae004 | 1166 | dev_dbg(&client->dev, "failed to enable xclk\n"); |
ccfc97bd SA |
1167 | goto out_xclk_fail; |
1168 | } | |
1169 | usleep_range(1000, 1000); | |
1170 | ||
9945374e | 1171 | if (gpio_is_valid(sensor->platform_data->xshutdown)) |
ccfc97bd SA |
1172 | gpio_set_value(sensor->platform_data->xshutdown, 1); |
1173 | ||
1174 | sleep = SMIAPP_RESET_DELAY(sensor->platform_data->ext_clk); | |
1175 | usleep_range(sleep, sleep); | |
1176 | ||
1177 | /* | |
1178 | * Failures to respond to the address change command have been noticed. | |
1179 | * Those failures seem to be caused by the sensor requiring a longer | |
1180 | * boot time than advertised. An additional 10ms delay seems to work | |
1181 | * around the issue, but the SMIA++ I2C write retry hack makes the delay | |
1182 | * unnecessary. The failures need to be investigated to find a proper | |
1183 | * fix, and a delay will likely need to be added here if the I2C write | |
1184 | * retry hack is reverted before the root cause of the boot time issue | |
1185 | * is found. | |
1186 | */ | |
1187 | ||
1188 | if (sensor->platform_data->i2c_addr_alt) { | |
1189 | rval = smiapp_change_cci_addr(sensor); | |
1190 | if (rval) { | |
1191 | dev_err(&client->dev, "cci address change error\n"); | |
1192 | goto out_cci_addr_fail; | |
1193 | } | |
1194 | } | |
1195 | ||
1e73eea7 | 1196 | rval = smiapp_write(sensor, SMIAPP_REG_U8_SOFTWARE_RESET, |
ccfc97bd SA |
1197 | SMIAPP_SOFTWARE_RESET); |
1198 | if (rval < 0) { | |
1199 | dev_err(&client->dev, "software reset failed\n"); | |
1200 | goto out_cci_addr_fail; | |
1201 | } | |
1202 | ||
1203 | if (sensor->platform_data->i2c_addr_alt) { | |
1204 | rval = smiapp_change_cci_addr(sensor); | |
1205 | if (rval) { | |
1206 | dev_err(&client->dev, "cci address change error\n"); | |
1207 | goto out_cci_addr_fail; | |
1208 | } | |
1209 | } | |
1210 | ||
1e73eea7 | 1211 | rval = smiapp_write(sensor, SMIAPP_REG_U16_COMPRESSION_MODE, |
ccfc97bd SA |
1212 | SMIAPP_COMPRESSION_MODE_SIMPLE_PREDICTOR); |
1213 | if (rval) { | |
1214 | dev_err(&client->dev, "compression mode set failed\n"); | |
1215 | goto out_cci_addr_fail; | |
1216 | } | |
1217 | ||
1218 | rval = smiapp_write( | |
1e73eea7 | 1219 | sensor, SMIAPP_REG_U16_EXTCLK_FREQUENCY_MHZ, |
ccfc97bd SA |
1220 | sensor->platform_data->ext_clk / (1000000 / (1 << 8))); |
1221 | if (rval) { | |
1222 | dev_err(&client->dev, "extclk frequency set failed\n"); | |
1223 | goto out_cci_addr_fail; | |
1224 | } | |
1225 | ||
1e73eea7 | 1226 | rval = smiapp_write(sensor, SMIAPP_REG_U8_CSI_LANE_MODE, |
ccfc97bd SA |
1227 | sensor->platform_data->lanes - 1); |
1228 | if (rval) { | |
1229 | dev_err(&client->dev, "csi lane mode set failed\n"); | |
1230 | goto out_cci_addr_fail; | |
1231 | } | |
1232 | ||
1e73eea7 | 1233 | rval = smiapp_write(sensor, SMIAPP_REG_U8_FAST_STANDBY_CTRL, |
ccfc97bd SA |
1234 | SMIAPP_FAST_STANDBY_CTRL_IMMEDIATE); |
1235 | if (rval) { | |
1236 | dev_err(&client->dev, "fast standby set failed\n"); | |
1237 | goto out_cci_addr_fail; | |
1238 | } | |
1239 | ||
1e73eea7 | 1240 | rval = smiapp_write(sensor, SMIAPP_REG_U8_CSI_SIGNALLING_MODE, |
ccfc97bd SA |
1241 | sensor->platform_data->csi_signalling_mode); |
1242 | if (rval) { | |
1243 | dev_err(&client->dev, "csi signalling mode set failed\n"); | |
1244 | goto out_cci_addr_fail; | |
1245 | } | |
1246 | ||
1247 | /* DPHY control done by sensor based on requested link rate */ | |
1e73eea7 | 1248 | rval = smiapp_write(sensor, SMIAPP_REG_U8_DPHY_CTRL, |
ccfc97bd SA |
1249 | SMIAPP_DPHY_CTRL_UI); |
1250 | if (rval < 0) | |
1251 | return rval; | |
1252 | ||
1253 | rval = smiapp_call_quirk(sensor, post_poweron); | |
1254 | if (rval) { | |
1255 | dev_err(&client->dev, "post_poweron quirks failed\n"); | |
1256 | goto out_cci_addr_fail; | |
1257 | } | |
1258 | ||
1259 | /* Are we still initialising...? If yes, return here. */ | |
1260 | if (!sensor->pixel_array) | |
1261 | return 0; | |
1262 | ||
1263 | rval = v4l2_ctrl_handler_setup( | |
1264 | &sensor->pixel_array->ctrl_handler); | |
1265 | if (rval) | |
1266 | goto out_cci_addr_fail; | |
1267 | ||
1268 | rval = v4l2_ctrl_handler_setup(&sensor->src->ctrl_handler); | |
1269 | if (rval) | |
1270 | goto out_cci_addr_fail; | |
1271 | ||
1272 | mutex_lock(&sensor->mutex); | |
1273 | rval = smiapp_update_mode(sensor); | |
1274 | mutex_unlock(&sensor->mutex); | |
1275 | if (rval < 0) | |
1276 | goto out_cci_addr_fail; | |
1277 | ||
1278 | return 0; | |
1279 | ||
1280 | out_cci_addr_fail: | |
9945374e | 1281 | if (gpio_is_valid(sensor->platform_data->xshutdown)) |
ccfc97bd | 1282 | gpio_set_value(sensor->platform_data->xshutdown, 0); |
2547428d SA |
1283 | if (sensor->platform_data->set_xclk) |
1284 | sensor->platform_data->set_xclk(&sensor->src->sd, 0); | |
1285 | else | |
d0aae004 | 1286 | clk_disable_unprepare(sensor->ext_clk); |
ccfc97bd SA |
1287 | |
1288 | out_xclk_fail: | |
1289 | regulator_disable(sensor->vana); | |
1290 | return rval; | |
1291 | } | |
1292 | ||
1293 | static void smiapp_power_off(struct smiapp_sensor *sensor) | |
1294 | { | |
ccfc97bd SA |
1295 | /* |
1296 | * Currently power/clock to lens are enable/disabled separately | |
1297 | * but they are essentially the same signals. So if the sensor is | |
1298 | * powered off while the lens is powered on the sensor does not | |
1299 | * really see a power off and next time the cci address change | |
1300 | * will fail. So do a soft reset explicitly here. | |
1301 | */ | |
1302 | if (sensor->platform_data->i2c_addr_alt) | |
1e73eea7 | 1303 | smiapp_write(sensor, |
ccfc97bd SA |
1304 | SMIAPP_REG_U8_SOFTWARE_RESET, |
1305 | SMIAPP_SOFTWARE_RESET); | |
1306 | ||
9945374e | 1307 | if (gpio_is_valid(sensor->platform_data->xshutdown)) |
ccfc97bd | 1308 | gpio_set_value(sensor->platform_data->xshutdown, 0); |
2547428d SA |
1309 | if (sensor->platform_data->set_xclk) |
1310 | sensor->platform_data->set_xclk(&sensor->src->sd, 0); | |
1311 | else | |
d0aae004 | 1312 | clk_disable_unprepare(sensor->ext_clk); |
ccfc97bd SA |
1313 | usleep_range(5000, 5000); |
1314 | regulator_disable(sensor->vana); | |
06e916b7 | 1315 | sensor->streaming = false; |
ccfc97bd SA |
1316 | } |
1317 | ||
1318 | static int smiapp_set_power(struct v4l2_subdev *subdev, int on) | |
1319 | { | |
1320 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
1321 | int ret = 0; | |
1322 | ||
1323 | mutex_lock(&sensor->power_mutex); | |
1324 | ||
58e43d90 | 1325 | if (on && !sensor->power_count) { |
ccfc97bd SA |
1326 | /* Power on and perform initialisation. */ |
1327 | ret = smiapp_power_on(sensor); | |
1328 | if (ret < 0) | |
1329 | goto out; | |
58e43d90 | 1330 | } else if (!on && sensor->power_count == 1) { |
ccfc97bd SA |
1331 | smiapp_power_off(sensor); |
1332 | } | |
1333 | ||
1334 | /* Update the power count. */ | |
1335 | sensor->power_count += on ? 1 : -1; | |
1336 | WARN_ON(sensor->power_count < 0); | |
1337 | ||
1338 | out: | |
1339 | mutex_unlock(&sensor->power_mutex); | |
1340 | return ret; | |
1341 | } | |
1342 | ||
1343 | /* ----------------------------------------------------------------------------- | |
1344 | * Video stream management | |
1345 | */ | |
1346 | ||
1347 | static int smiapp_start_streaming(struct smiapp_sensor *sensor) | |
1348 | { | |
1349 | struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); | |
1350 | int rval; | |
1351 | ||
1352 | mutex_lock(&sensor->mutex); | |
1353 | ||
1e73eea7 | 1354 | rval = smiapp_write(sensor, SMIAPP_REG_U16_CSI_DATA_FORMAT, |
ccfc97bd SA |
1355 | (sensor->csi_format->width << 8) | |
1356 | sensor->csi_format->compressed); | |
1357 | if (rval) | |
1358 | goto out; | |
1359 | ||
1360 | rval = smiapp_pll_configure(sensor); | |
1361 | if (rval) | |
1362 | goto out; | |
1363 | ||
1364 | /* Analog crop start coordinates */ | |
1e73eea7 | 1365 | rval = smiapp_write(sensor, SMIAPP_REG_U16_X_ADDR_START, |
ccfc97bd SA |
1366 | sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].left); |
1367 | if (rval < 0) | |
1368 | goto out; | |
1369 | ||
1e73eea7 | 1370 | rval = smiapp_write(sensor, SMIAPP_REG_U16_Y_ADDR_START, |
ccfc97bd SA |
1371 | sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].top); |
1372 | if (rval < 0) | |
1373 | goto out; | |
1374 | ||
1375 | /* Analog crop end coordinates */ | |
1376 | rval = smiapp_write( | |
1e73eea7 | 1377 | sensor, SMIAPP_REG_U16_X_ADDR_END, |
ccfc97bd SA |
1378 | sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].left |
1379 | + sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].width - 1); | |
1380 | if (rval < 0) | |
1381 | goto out; | |
1382 | ||
1383 | rval = smiapp_write( | |
1e73eea7 | 1384 | sensor, SMIAPP_REG_U16_Y_ADDR_END, |
ccfc97bd SA |
1385 | sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].top |
1386 | + sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].height - 1); | |
1387 | if (rval < 0) | |
1388 | goto out; | |
1389 | ||
1390 | /* | |
1391 | * Output from pixel array, including blanking, is set using | |
1392 | * controls below. No need to set here. | |
1393 | */ | |
1394 | ||
1395 | /* Digital crop */ | |
1396 | if (sensor->limits[SMIAPP_LIMIT_DIGITAL_CROP_CAPABILITY] | |
1397 | == SMIAPP_DIGITAL_CROP_CAPABILITY_INPUT_CROP) { | |
1398 | rval = smiapp_write( | |
1e73eea7 | 1399 | sensor, SMIAPP_REG_U16_DIGITAL_CROP_X_OFFSET, |
ccfc97bd SA |
1400 | sensor->scaler->crop[SMIAPP_PAD_SINK].left); |
1401 | if (rval < 0) | |
1402 | goto out; | |
1403 | ||
1404 | rval = smiapp_write( | |
1e73eea7 | 1405 | sensor, SMIAPP_REG_U16_DIGITAL_CROP_Y_OFFSET, |
ccfc97bd SA |
1406 | sensor->scaler->crop[SMIAPP_PAD_SINK].top); |
1407 | if (rval < 0) | |
1408 | goto out; | |
1409 | ||
1410 | rval = smiapp_write( | |
1e73eea7 | 1411 | sensor, SMIAPP_REG_U16_DIGITAL_CROP_IMAGE_WIDTH, |
ccfc97bd SA |
1412 | sensor->scaler->crop[SMIAPP_PAD_SINK].width); |
1413 | if (rval < 0) | |
1414 | goto out; | |
1415 | ||
1416 | rval = smiapp_write( | |
1e73eea7 | 1417 | sensor, SMIAPP_REG_U16_DIGITAL_CROP_IMAGE_HEIGHT, |
ccfc97bd SA |
1418 | sensor->scaler->crop[SMIAPP_PAD_SINK].height); |
1419 | if (rval < 0) | |
1420 | goto out; | |
1421 | } | |
1422 | ||
1423 | /* Scaling */ | |
1424 | if (sensor->limits[SMIAPP_LIMIT_SCALING_CAPABILITY] | |
1425 | != SMIAPP_SCALING_CAPABILITY_NONE) { | |
1e73eea7 | 1426 | rval = smiapp_write(sensor, SMIAPP_REG_U16_SCALING_MODE, |
ccfc97bd SA |
1427 | sensor->scaling_mode); |
1428 | if (rval < 0) | |
1429 | goto out; | |
1430 | ||
1e73eea7 | 1431 | rval = smiapp_write(sensor, SMIAPP_REG_U16_SCALE_M, |
ccfc97bd SA |
1432 | sensor->scale_m); |
1433 | if (rval < 0) | |
1434 | goto out; | |
1435 | } | |
1436 | ||
1437 | /* Output size from sensor */ | |
1e73eea7 | 1438 | rval = smiapp_write(sensor, SMIAPP_REG_U16_X_OUTPUT_SIZE, |
ccfc97bd SA |
1439 | sensor->src->crop[SMIAPP_PAD_SRC].width); |
1440 | if (rval < 0) | |
1441 | goto out; | |
1e73eea7 | 1442 | rval = smiapp_write(sensor, SMIAPP_REG_U16_Y_OUTPUT_SIZE, |
ccfc97bd SA |
1443 | sensor->src->crop[SMIAPP_PAD_SRC].height); |
1444 | if (rval < 0) | |
1445 | goto out; | |
1446 | ||
1447 | if ((sensor->flash_capability & | |
1448 | (SMIAPP_FLASH_MODE_CAPABILITY_SINGLE_STROBE | | |
1449 | SMIAPP_FLASH_MODE_CAPABILITY_MULTIPLE_STROBE)) && | |
1450 | sensor->platform_data->strobe_setup != NULL && | |
1451 | sensor->platform_data->strobe_setup->trigger != 0) { | |
1452 | rval = smiapp_setup_flash_strobe(sensor); | |
1453 | if (rval) | |
1454 | goto out; | |
1455 | } | |
1456 | ||
1457 | rval = smiapp_call_quirk(sensor, pre_streamon); | |
1458 | if (rval) { | |
1459 | dev_err(&client->dev, "pre_streamon quirks failed\n"); | |
1460 | goto out; | |
1461 | } | |
1462 | ||
1e73eea7 | 1463 | rval = smiapp_write(sensor, SMIAPP_REG_U8_MODE_SELECT, |
ccfc97bd SA |
1464 | SMIAPP_MODE_SELECT_STREAMING); |
1465 | ||
1466 | out: | |
1467 | mutex_unlock(&sensor->mutex); | |
1468 | ||
1469 | return rval; | |
1470 | } | |
1471 | ||
1472 | static int smiapp_stop_streaming(struct smiapp_sensor *sensor) | |
1473 | { | |
1474 | struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); | |
1475 | int rval; | |
1476 | ||
1477 | mutex_lock(&sensor->mutex); | |
1e73eea7 | 1478 | rval = smiapp_write(sensor, SMIAPP_REG_U8_MODE_SELECT, |
ccfc97bd SA |
1479 | SMIAPP_MODE_SELECT_SOFTWARE_STANDBY); |
1480 | if (rval) | |
1481 | goto out; | |
1482 | ||
1483 | rval = smiapp_call_quirk(sensor, post_streamoff); | |
1484 | if (rval) | |
1485 | dev_err(&client->dev, "post_streamoff quirks failed\n"); | |
1486 | ||
1487 | out: | |
1488 | mutex_unlock(&sensor->mutex); | |
1489 | return rval; | |
1490 | } | |
1491 | ||
1492 | /* ----------------------------------------------------------------------------- | |
1493 | * V4L2 subdev video operations | |
1494 | */ | |
1495 | ||
1496 | static int smiapp_set_stream(struct v4l2_subdev *subdev, int enable) | |
1497 | { | |
1498 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
1499 | int rval; | |
1500 | ||
1501 | if (sensor->streaming == enable) | |
1502 | return 0; | |
1503 | ||
1504 | if (enable) { | |
06e916b7 | 1505 | sensor->streaming = true; |
ccfc97bd SA |
1506 | rval = smiapp_start_streaming(sensor); |
1507 | if (rval < 0) | |
06e916b7 | 1508 | sensor->streaming = false; |
ccfc97bd SA |
1509 | } else { |
1510 | rval = smiapp_stop_streaming(sensor); | |
06e916b7 | 1511 | sensor->streaming = false; |
ccfc97bd SA |
1512 | } |
1513 | ||
1514 | return rval; | |
1515 | } | |
1516 | ||
1517 | static int smiapp_enum_mbus_code(struct v4l2_subdev *subdev, | |
1518 | struct v4l2_subdev_fh *fh, | |
1519 | struct v4l2_subdev_mbus_code_enum *code) | |
1520 | { | |
1521 | struct i2c_client *client = v4l2_get_subdevdata(subdev); | |
1522 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
1523 | unsigned int i; | |
1524 | int idx = -1; | |
1525 | int rval = -EINVAL; | |
1526 | ||
1527 | mutex_lock(&sensor->mutex); | |
1528 | ||
1529 | dev_err(&client->dev, "subdev %s, pad %d, index %d\n", | |
1530 | subdev->name, code->pad, code->index); | |
1531 | ||
1532 | if (subdev != &sensor->src->sd || code->pad != SMIAPP_PAD_SRC) { | |
1533 | if (code->index) | |
1534 | goto out; | |
1535 | ||
1536 | code->code = sensor->internal_csi_format->code; | |
1537 | rval = 0; | |
1538 | goto out; | |
1539 | } | |
1540 | ||
1541 | for (i = 0; i < ARRAY_SIZE(smiapp_csi_data_formats); i++) { | |
1542 | if (sensor->mbus_frame_fmts & (1 << i)) | |
1543 | idx++; | |
1544 | ||
1545 | if (idx == code->index) { | |
1546 | code->code = smiapp_csi_data_formats[i].code; | |
1547 | dev_err(&client->dev, "found index %d, i %d, code %x\n", | |
1548 | code->index, i, code->code); | |
1549 | rval = 0; | |
1550 | break; | |
1551 | } | |
1552 | } | |
1553 | ||
1554 | out: | |
1555 | mutex_unlock(&sensor->mutex); | |
1556 | ||
1557 | return rval; | |
1558 | } | |
1559 | ||
1560 | static u32 __smiapp_get_mbus_code(struct v4l2_subdev *subdev, | |
1561 | unsigned int pad) | |
1562 | { | |
1563 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
1564 | ||
1565 | if (subdev == &sensor->src->sd && pad == SMIAPP_PAD_SRC) | |
1566 | return sensor->csi_format->code; | |
1567 | else | |
1568 | return sensor->internal_csi_format->code; | |
1569 | } | |
1570 | ||
1571 | static int __smiapp_get_format(struct v4l2_subdev *subdev, | |
1572 | struct v4l2_subdev_fh *fh, | |
1573 | struct v4l2_subdev_format *fmt) | |
1574 | { | |
1575 | struct smiapp_subdev *ssd = to_smiapp_subdev(subdev); | |
1576 | ||
1577 | if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { | |
1578 | fmt->format = *v4l2_subdev_get_try_format(fh, fmt->pad); | |
1579 | } else { | |
1580 | struct v4l2_rect *r; | |
1581 | ||
1582 | if (fmt->pad == ssd->source_pad) | |
1583 | r = &ssd->crop[ssd->source_pad]; | |
1584 | else | |
1585 | r = &ssd->sink_fmt; | |
1586 | ||
1587 | fmt->format.code = __smiapp_get_mbus_code(subdev, fmt->pad); | |
1588 | fmt->format.width = r->width; | |
1589 | fmt->format.height = r->height; | |
7ed0b291 | 1590 | fmt->format.field = V4L2_FIELD_NONE; |
ccfc97bd SA |
1591 | } |
1592 | ||
1593 | return 0; | |
1594 | } | |
1595 | ||
1596 | static int smiapp_get_format(struct v4l2_subdev *subdev, | |
1597 | struct v4l2_subdev_fh *fh, | |
1598 | struct v4l2_subdev_format *fmt) | |
1599 | { | |
1600 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
1601 | int rval; | |
1602 | ||
1603 | mutex_lock(&sensor->mutex); | |
1604 | rval = __smiapp_get_format(subdev, fh, fmt); | |
1605 | mutex_unlock(&sensor->mutex); | |
1606 | ||
1607 | return rval; | |
1608 | } | |
1609 | ||
1610 | static void smiapp_get_crop_compose(struct v4l2_subdev *subdev, | |
1611 | struct v4l2_subdev_fh *fh, | |
1612 | struct v4l2_rect **crops, | |
1613 | struct v4l2_rect **comps, int which) | |
1614 | { | |
1615 | struct smiapp_subdev *ssd = to_smiapp_subdev(subdev); | |
1616 | unsigned int i; | |
1617 | ||
1618 | if (which == V4L2_SUBDEV_FORMAT_ACTIVE) { | |
1619 | if (crops) | |
1620 | for (i = 0; i < subdev->entity.num_pads; i++) | |
1621 | crops[i] = &ssd->crop[i]; | |
1622 | if (comps) | |
1623 | *comps = &ssd->compose; | |
1624 | } else { | |
1625 | if (crops) { | |
1626 | for (i = 0; i < subdev->entity.num_pads; i++) { | |
1627 | crops[i] = v4l2_subdev_get_try_crop(fh, i); | |
1628 | BUG_ON(!crops[i]); | |
1629 | } | |
1630 | } | |
1631 | if (comps) { | |
1632 | *comps = v4l2_subdev_get_try_compose(fh, | |
1633 | SMIAPP_PAD_SINK); | |
1634 | BUG_ON(!*comps); | |
1635 | } | |
1636 | } | |
1637 | } | |
1638 | ||
1639 | /* Changes require propagation only on sink pad. */ | |
1640 | static void smiapp_propagate(struct v4l2_subdev *subdev, | |
1641 | struct v4l2_subdev_fh *fh, int which, | |
1642 | int target) | |
1643 | { | |
1644 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
1645 | struct smiapp_subdev *ssd = to_smiapp_subdev(subdev); | |
1646 | struct v4l2_rect *comp, *crops[SMIAPP_PADS]; | |
1647 | ||
1648 | smiapp_get_crop_compose(subdev, fh, crops, &comp, which); | |
1649 | ||
1650 | switch (target) { | |
5689b288 | 1651 | case V4L2_SEL_TGT_CROP: |
ccfc97bd SA |
1652 | comp->width = crops[SMIAPP_PAD_SINK]->width; |
1653 | comp->height = crops[SMIAPP_PAD_SINK]->height; | |
1654 | if (which == V4L2_SUBDEV_FORMAT_ACTIVE) { | |
1655 | if (ssd == sensor->scaler) { | |
1656 | sensor->scale_m = | |
1657 | sensor->limits[ | |
1658 | SMIAPP_LIMIT_SCALER_N_MIN]; | |
1659 | sensor->scaling_mode = | |
1660 | SMIAPP_SCALING_MODE_NONE; | |
1661 | } else if (ssd == sensor->binner) { | |
1662 | sensor->binning_horizontal = 1; | |
1663 | sensor->binning_vertical = 1; | |
1664 | } | |
1665 | } | |
1666 | /* Fall through */ | |
5689b288 | 1667 | case V4L2_SEL_TGT_COMPOSE: |
ccfc97bd SA |
1668 | *crops[SMIAPP_PAD_SRC] = *comp; |
1669 | break; | |
1670 | default: | |
1671 | BUG(); | |
1672 | } | |
1673 | } | |
1674 | ||
1675 | static const struct smiapp_csi_data_format | |
1676 | *smiapp_validate_csi_data_format(struct smiapp_sensor *sensor, u32 code) | |
1677 | { | |
1678 | const struct smiapp_csi_data_format *csi_format = sensor->csi_format; | |
1679 | unsigned int i; | |
1680 | ||
1681 | for (i = 0; i < ARRAY_SIZE(smiapp_csi_data_formats); i++) { | |
1682 | if (sensor->mbus_frame_fmts & (1 << i) | |
1683 | && smiapp_csi_data_formats[i].code == code) | |
1684 | return &smiapp_csi_data_formats[i]; | |
1685 | } | |
1686 | ||
1687 | return csi_format; | |
1688 | } | |
1689 | ||
1690 | static int smiapp_set_format(struct v4l2_subdev *subdev, | |
1691 | struct v4l2_subdev_fh *fh, | |
1692 | struct v4l2_subdev_format *fmt) | |
1693 | { | |
1694 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
1695 | struct smiapp_subdev *ssd = to_smiapp_subdev(subdev); | |
1696 | struct v4l2_rect *crops[SMIAPP_PADS]; | |
1697 | ||
1698 | mutex_lock(&sensor->mutex); | |
1699 | ||
1700 | /* | |
1701 | * Media bus code is changeable on src subdev's source pad. On | |
1702 | * other source pads we just get format here. | |
1703 | */ | |
1704 | if (fmt->pad == ssd->source_pad) { | |
1705 | u32 code = fmt->format.code; | |
1706 | int rval = __smiapp_get_format(subdev, fh, fmt); | |
0e2a6b7f SA |
1707 | bool range_changed = false; |
1708 | unsigned int i; | |
ccfc97bd SA |
1709 | |
1710 | if (!rval && subdev == &sensor->src->sd) { | |
1711 | const struct smiapp_csi_data_format *csi_format = | |
1712 | smiapp_validate_csi_data_format(sensor, code); | |
0e2a6b7f SA |
1713 | |
1714 | if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) { | |
1715 | if (csi_format->width != | |
1716 | sensor->csi_format->width) | |
1717 | range_changed = true; | |
1718 | ||
ccfc97bd | 1719 | sensor->csi_format = csi_format; |
0e2a6b7f SA |
1720 | } |
1721 | ||
ccfc97bd SA |
1722 | fmt->format.code = csi_format->code; |
1723 | } | |
1724 | ||
1725 | mutex_unlock(&sensor->mutex); | |
0e2a6b7f SA |
1726 | if (rval || !range_changed) |
1727 | return rval; | |
1728 | ||
1729 | for (i = 0; i < ARRAY_SIZE(sensor->test_data); i++) | |
1730 | v4l2_ctrl_modify_range( | |
1731 | sensor->test_data[i], | |
1732 | 0, (1 << sensor->csi_format->width) - 1, 1, 0); | |
1733 | ||
1734 | return 0; | |
ccfc97bd SA |
1735 | } |
1736 | ||
1737 | /* Sink pad. Width and height are changeable here. */ | |
1738 | fmt->format.code = __smiapp_get_mbus_code(subdev, fmt->pad); | |
1739 | fmt->format.width &= ~1; | |
1740 | fmt->format.height &= ~1; | |
7ed0b291 | 1741 | fmt->format.field = V4L2_FIELD_NONE; |
ccfc97bd SA |
1742 | |
1743 | fmt->format.width = | |
1744 | clamp(fmt->format.width, | |
1745 | sensor->limits[SMIAPP_LIMIT_MIN_X_OUTPUT_SIZE], | |
1746 | sensor->limits[SMIAPP_LIMIT_MAX_X_OUTPUT_SIZE]); | |
1747 | fmt->format.height = | |
1748 | clamp(fmt->format.height, | |
1749 | sensor->limits[SMIAPP_LIMIT_MIN_Y_OUTPUT_SIZE], | |
1750 | sensor->limits[SMIAPP_LIMIT_MAX_Y_OUTPUT_SIZE]); | |
1751 | ||
1752 | smiapp_get_crop_compose(subdev, fh, crops, NULL, fmt->which); | |
1753 | ||
1754 | crops[ssd->sink_pad]->left = 0; | |
1755 | crops[ssd->sink_pad]->top = 0; | |
1756 | crops[ssd->sink_pad]->width = fmt->format.width; | |
1757 | crops[ssd->sink_pad]->height = fmt->format.height; | |
1758 | if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) | |
1759 | ssd->sink_fmt = *crops[ssd->sink_pad]; | |
1760 | smiapp_propagate(subdev, fh, fmt->which, | |
5689b288 | 1761 | V4L2_SEL_TGT_CROP); |
ccfc97bd SA |
1762 | |
1763 | mutex_unlock(&sensor->mutex); | |
1764 | ||
1765 | return 0; | |
1766 | } | |
1767 | ||
1768 | /* | |
1769 | * Calculate goodness of scaled image size compared to expected image | |
1770 | * size and flags provided. | |
1771 | */ | |
1772 | #define SCALING_GOODNESS 100000 | |
1773 | #define SCALING_GOODNESS_EXTREME 100000000 | |
1774 | static int scaling_goodness(struct v4l2_subdev *subdev, int w, int ask_w, | |
1775 | int h, int ask_h, u32 flags) | |
1776 | { | |
1777 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
1778 | struct i2c_client *client = v4l2_get_subdevdata(subdev); | |
1779 | int val = 0; | |
1780 | ||
1781 | w &= ~1; | |
1782 | ask_w &= ~1; | |
1783 | h &= ~1; | |
1784 | ask_h &= ~1; | |
1785 | ||
563df3d0 | 1786 | if (flags & V4L2_SEL_FLAG_GE) { |
ccfc97bd SA |
1787 | if (w < ask_w) |
1788 | val -= SCALING_GOODNESS; | |
1789 | if (h < ask_h) | |
1790 | val -= SCALING_GOODNESS; | |
1791 | } | |
1792 | ||
563df3d0 | 1793 | if (flags & V4L2_SEL_FLAG_LE) { |
ccfc97bd SA |
1794 | if (w > ask_w) |
1795 | val -= SCALING_GOODNESS; | |
1796 | if (h > ask_h) | |
1797 | val -= SCALING_GOODNESS; | |
1798 | } | |
1799 | ||
1800 | val -= abs(w - ask_w); | |
1801 | val -= abs(h - ask_h); | |
1802 | ||
1803 | if (w < sensor->limits[SMIAPP_LIMIT_MIN_X_OUTPUT_SIZE]) | |
1804 | val -= SCALING_GOODNESS_EXTREME; | |
1805 | ||
1806 | dev_dbg(&client->dev, "w %d ask_w %d h %d ask_h %d goodness %d\n", | |
1807 | w, ask_h, h, ask_h, val); | |
1808 | ||
1809 | return val; | |
1810 | } | |
1811 | ||
1812 | static void smiapp_set_compose_binner(struct v4l2_subdev *subdev, | |
1813 | struct v4l2_subdev_fh *fh, | |
1814 | struct v4l2_subdev_selection *sel, | |
1815 | struct v4l2_rect **crops, | |
1816 | struct v4l2_rect *comp) | |
1817 | { | |
1818 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
1819 | unsigned int i; | |
1820 | unsigned int binh = 1, binv = 1; | |
aca6bf54 | 1821 | int best = scaling_goodness( |
ccfc97bd SA |
1822 | subdev, |
1823 | crops[SMIAPP_PAD_SINK]->width, sel->r.width, | |
1824 | crops[SMIAPP_PAD_SINK]->height, sel->r.height, sel->flags); | |
1825 | ||
1826 | for (i = 0; i < sensor->nbinning_subtypes; i++) { | |
1827 | int this = scaling_goodness( | |
1828 | subdev, | |
1829 | crops[SMIAPP_PAD_SINK]->width | |
1830 | / sensor->binning_subtypes[i].horizontal, | |
1831 | sel->r.width, | |
1832 | crops[SMIAPP_PAD_SINK]->height | |
1833 | / sensor->binning_subtypes[i].vertical, | |
1834 | sel->r.height, sel->flags); | |
1835 | ||
1836 | if (this > best) { | |
1837 | binh = sensor->binning_subtypes[i].horizontal; | |
1838 | binv = sensor->binning_subtypes[i].vertical; | |
1839 | best = this; | |
1840 | } | |
1841 | } | |
1842 | if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE) { | |
1843 | sensor->binning_vertical = binv; | |
1844 | sensor->binning_horizontal = binh; | |
1845 | } | |
1846 | ||
1847 | sel->r.width = (crops[SMIAPP_PAD_SINK]->width / binh) & ~1; | |
1848 | sel->r.height = (crops[SMIAPP_PAD_SINK]->height / binv) & ~1; | |
1849 | } | |
1850 | ||
1851 | /* | |
1852 | * Calculate best scaling ratio and mode for given output resolution. | |
1853 | * | |
1854 | * Try all of these: horizontal ratio, vertical ratio and smallest | |
1855 | * size possible (horizontally). | |
1856 | * | |
1857 | * Also try whether horizontal scaler or full scaler gives a better | |
1858 | * result. | |
1859 | */ | |
1860 | static void smiapp_set_compose_scaler(struct v4l2_subdev *subdev, | |
1861 | struct v4l2_subdev_fh *fh, | |
1862 | struct v4l2_subdev_selection *sel, | |
1863 | struct v4l2_rect **crops, | |
1864 | struct v4l2_rect *comp) | |
1865 | { | |
1866 | struct i2c_client *client = v4l2_get_subdevdata(subdev); | |
1867 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
1868 | u32 min, max, a, b, max_m; | |
1869 | u32 scale_m = sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN]; | |
1870 | int mode = SMIAPP_SCALING_MODE_HORIZONTAL; | |
1871 | u32 try[4]; | |
1872 | u32 ntry = 0; | |
1873 | unsigned int i; | |
1874 | int best = INT_MIN; | |
1875 | ||
1876 | sel->r.width = min_t(unsigned int, sel->r.width, | |
1877 | crops[SMIAPP_PAD_SINK]->width); | |
1878 | sel->r.height = min_t(unsigned int, sel->r.height, | |
1879 | crops[SMIAPP_PAD_SINK]->height); | |
1880 | ||
1881 | a = crops[SMIAPP_PAD_SINK]->width | |
1882 | * sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN] / sel->r.width; | |
1883 | b = crops[SMIAPP_PAD_SINK]->height | |
1884 | * sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN] / sel->r.height; | |
1885 | max_m = crops[SMIAPP_PAD_SINK]->width | |
1886 | * sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN] | |
1887 | / sensor->limits[SMIAPP_LIMIT_MIN_X_OUTPUT_SIZE]; | |
1888 | ||
7be5c289 AS |
1889 | a = clamp(a, sensor->limits[SMIAPP_LIMIT_SCALER_M_MIN], |
1890 | sensor->limits[SMIAPP_LIMIT_SCALER_M_MAX]); | |
1891 | b = clamp(b, sensor->limits[SMIAPP_LIMIT_SCALER_M_MIN], | |
1892 | sensor->limits[SMIAPP_LIMIT_SCALER_M_MAX]); | |
1893 | max_m = clamp(max_m, sensor->limits[SMIAPP_LIMIT_SCALER_M_MIN], | |
1894 | sensor->limits[SMIAPP_LIMIT_SCALER_M_MAX]); | |
ccfc97bd SA |
1895 | |
1896 | dev_dbg(&client->dev, "scaling: a %d b %d max_m %d\n", a, b, max_m); | |
1897 | ||
1898 | min = min(max_m, min(a, b)); | |
1899 | max = min(max_m, max(a, b)); | |
1900 | ||
1901 | try[ntry] = min; | |
1902 | ntry++; | |
1903 | if (min != max) { | |
1904 | try[ntry] = max; | |
1905 | ntry++; | |
1906 | } | |
1907 | if (max != max_m) { | |
1908 | try[ntry] = min + 1; | |
1909 | ntry++; | |
1910 | if (min != max) { | |
1911 | try[ntry] = max + 1; | |
1912 | ntry++; | |
1913 | } | |
1914 | } | |
1915 | ||
1916 | for (i = 0; i < ntry; i++) { | |
1917 | int this = scaling_goodness( | |
1918 | subdev, | |
1919 | crops[SMIAPP_PAD_SINK]->width | |
1920 | / try[i] | |
1921 | * sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN], | |
1922 | sel->r.width, | |
1923 | crops[SMIAPP_PAD_SINK]->height, | |
1924 | sel->r.height, | |
1925 | sel->flags); | |
1926 | ||
1927 | dev_dbg(&client->dev, "trying factor %d (%d)\n", try[i], i); | |
1928 | ||
1929 | if (this > best) { | |
1930 | scale_m = try[i]; | |
1931 | mode = SMIAPP_SCALING_MODE_HORIZONTAL; | |
1932 | best = this; | |
1933 | } | |
1934 | ||
1935 | if (sensor->limits[SMIAPP_LIMIT_SCALING_CAPABILITY] | |
1936 | == SMIAPP_SCALING_CAPABILITY_HORIZONTAL) | |
1937 | continue; | |
1938 | ||
1939 | this = scaling_goodness( | |
1940 | subdev, crops[SMIAPP_PAD_SINK]->width | |
1941 | / try[i] | |
1942 | * sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN], | |
1943 | sel->r.width, | |
1944 | crops[SMIAPP_PAD_SINK]->height | |
1945 | / try[i] | |
1946 | * sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN], | |
1947 | sel->r.height, | |
1948 | sel->flags); | |
1949 | ||
1950 | if (this > best) { | |
1951 | scale_m = try[i]; | |
1952 | mode = SMIAPP_SCALING_MODE_BOTH; | |
1953 | best = this; | |
1954 | } | |
1955 | } | |
1956 | ||
1957 | sel->r.width = | |
1958 | (crops[SMIAPP_PAD_SINK]->width | |
1959 | / scale_m | |
1960 | * sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN]) & ~1; | |
1961 | if (mode == SMIAPP_SCALING_MODE_BOTH) | |
1962 | sel->r.height = | |
1963 | (crops[SMIAPP_PAD_SINK]->height | |
1964 | / scale_m | |
1965 | * sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN]) | |
1966 | & ~1; | |
1967 | else | |
1968 | sel->r.height = crops[SMIAPP_PAD_SINK]->height; | |
1969 | ||
1970 | if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE) { | |
1971 | sensor->scale_m = scale_m; | |
1972 | sensor->scaling_mode = mode; | |
1973 | } | |
1974 | } | |
1975 | /* We're only called on source pads. This function sets scaling. */ | |
1976 | static int smiapp_set_compose(struct v4l2_subdev *subdev, | |
1977 | struct v4l2_subdev_fh *fh, | |
1978 | struct v4l2_subdev_selection *sel) | |
1979 | { | |
1980 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
1981 | struct smiapp_subdev *ssd = to_smiapp_subdev(subdev); | |
1982 | struct v4l2_rect *comp, *crops[SMIAPP_PADS]; | |
1983 | ||
1984 | smiapp_get_crop_compose(subdev, fh, crops, &comp, sel->which); | |
1985 | ||
1986 | sel->r.top = 0; | |
1987 | sel->r.left = 0; | |
1988 | ||
1989 | if (ssd == sensor->binner) | |
1990 | smiapp_set_compose_binner(subdev, fh, sel, crops, comp); | |
1991 | else | |
1992 | smiapp_set_compose_scaler(subdev, fh, sel, crops, comp); | |
1993 | ||
1994 | *comp = sel->r; | |
1995 | smiapp_propagate(subdev, fh, sel->which, | |
5689b288 | 1996 | V4L2_SEL_TGT_COMPOSE); |
ccfc97bd SA |
1997 | |
1998 | if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE) | |
1999 | return smiapp_update_mode(sensor); | |
2000 | ||
2001 | return 0; | |
2002 | } | |
2003 | ||
2004 | static int __smiapp_sel_supported(struct v4l2_subdev *subdev, | |
2005 | struct v4l2_subdev_selection *sel) | |
2006 | { | |
2007 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
2008 | struct smiapp_subdev *ssd = to_smiapp_subdev(subdev); | |
2009 | ||
2010 | /* We only implement crop in three places. */ | |
2011 | switch (sel->target) { | |
5689b288 SA |
2012 | case V4L2_SEL_TGT_CROP: |
2013 | case V4L2_SEL_TGT_CROP_BOUNDS: | |
ccfc97bd SA |
2014 | if (ssd == sensor->pixel_array |
2015 | && sel->pad == SMIAPP_PA_PAD_SRC) | |
2016 | return 0; | |
2017 | if (ssd == sensor->src | |
2018 | && sel->pad == SMIAPP_PAD_SRC) | |
2019 | return 0; | |
2020 | if (ssd == sensor->scaler | |
2021 | && sel->pad == SMIAPP_PAD_SINK | |
2022 | && sensor->limits[SMIAPP_LIMIT_DIGITAL_CROP_CAPABILITY] | |
2023 | == SMIAPP_DIGITAL_CROP_CAPABILITY_INPUT_CROP) | |
2024 | return 0; | |
2025 | return -EINVAL; | |
5689b288 SA |
2026 | case V4L2_SEL_TGT_COMPOSE: |
2027 | case V4L2_SEL_TGT_COMPOSE_BOUNDS: | |
ccfc97bd SA |
2028 | if (sel->pad == ssd->source_pad) |
2029 | return -EINVAL; | |
2030 | if (ssd == sensor->binner) | |
2031 | return 0; | |
2032 | if (ssd == sensor->scaler | |
2033 | && sensor->limits[SMIAPP_LIMIT_SCALING_CAPABILITY] | |
2034 | != SMIAPP_SCALING_CAPABILITY_NONE) | |
2035 | return 0; | |
2036 | /* Fall through */ | |
2037 | default: | |
2038 | return -EINVAL; | |
2039 | } | |
2040 | } | |
2041 | ||
2042 | static int smiapp_set_crop(struct v4l2_subdev *subdev, | |
2043 | struct v4l2_subdev_fh *fh, | |
2044 | struct v4l2_subdev_selection *sel) | |
2045 | { | |
2046 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
2047 | struct smiapp_subdev *ssd = to_smiapp_subdev(subdev); | |
2048 | struct v4l2_rect *src_size, *crops[SMIAPP_PADS]; | |
2049 | struct v4l2_rect _r; | |
2050 | ||
2051 | smiapp_get_crop_compose(subdev, fh, crops, NULL, sel->which); | |
2052 | ||
2053 | if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE) { | |
2054 | if (sel->pad == ssd->sink_pad) | |
2055 | src_size = &ssd->sink_fmt; | |
2056 | else | |
2057 | src_size = &ssd->compose; | |
2058 | } else { | |
2059 | if (sel->pad == ssd->sink_pad) { | |
2060 | _r.left = 0; | |
2061 | _r.top = 0; | |
2062 | _r.width = v4l2_subdev_get_try_format(fh, sel->pad) | |
2063 | ->width; | |
2064 | _r.height = v4l2_subdev_get_try_format(fh, sel->pad) | |
2065 | ->height; | |
2066 | src_size = &_r; | |
2067 | } else { | |
2068 | src_size = | |
2069 | v4l2_subdev_get_try_compose( | |
2070 | fh, ssd->sink_pad); | |
2071 | } | |
2072 | } | |
2073 | ||
2074 | if (ssd == sensor->src && sel->pad == SMIAPP_PAD_SRC) { | |
2075 | sel->r.left = 0; | |
2076 | sel->r.top = 0; | |
2077 | } | |
2078 | ||
2079 | sel->r.width = min(sel->r.width, src_size->width); | |
2080 | sel->r.height = min(sel->r.height, src_size->height); | |
2081 | ||
f90580ca RR |
2082 | sel->r.left = min_t(int, sel->r.left, src_size->width - sel->r.width); |
2083 | sel->r.top = min_t(int, sel->r.top, src_size->height - sel->r.height); | |
ccfc97bd SA |
2084 | |
2085 | *crops[sel->pad] = sel->r; | |
2086 | ||
2087 | if (ssd != sensor->pixel_array && sel->pad == SMIAPP_PAD_SINK) | |
2088 | smiapp_propagate(subdev, fh, sel->which, | |
5689b288 | 2089 | V4L2_SEL_TGT_CROP); |
ccfc97bd SA |
2090 | |
2091 | return 0; | |
2092 | } | |
2093 | ||
2094 | static int __smiapp_get_selection(struct v4l2_subdev *subdev, | |
2095 | struct v4l2_subdev_fh *fh, | |
2096 | struct v4l2_subdev_selection *sel) | |
2097 | { | |
2098 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
2099 | struct smiapp_subdev *ssd = to_smiapp_subdev(subdev); | |
2100 | struct v4l2_rect *comp, *crops[SMIAPP_PADS]; | |
2101 | struct v4l2_rect sink_fmt; | |
2102 | int ret; | |
2103 | ||
2104 | ret = __smiapp_sel_supported(subdev, sel); | |
2105 | if (ret) | |
2106 | return ret; | |
2107 | ||
2108 | smiapp_get_crop_compose(subdev, fh, crops, &comp, sel->which); | |
2109 | ||
2110 | if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE) { | |
2111 | sink_fmt = ssd->sink_fmt; | |
2112 | } else { | |
2113 | struct v4l2_mbus_framefmt *fmt = | |
2114 | v4l2_subdev_get_try_format(fh, ssd->sink_pad); | |
2115 | ||
2116 | sink_fmt.left = 0; | |
2117 | sink_fmt.top = 0; | |
2118 | sink_fmt.width = fmt->width; | |
2119 | sink_fmt.height = fmt->height; | |
2120 | } | |
2121 | ||
2122 | switch (sel->target) { | |
5689b288 | 2123 | case V4L2_SEL_TGT_CROP_BOUNDS: |
ccfc97bd SA |
2124 | if (ssd == sensor->pixel_array) { |
2125 | sel->r.width = | |
2126 | sensor->limits[SMIAPP_LIMIT_X_ADDR_MAX] + 1; | |
2127 | sel->r.height = | |
2128 | sensor->limits[SMIAPP_LIMIT_Y_ADDR_MAX] + 1; | |
2129 | } else if (sel->pad == ssd->sink_pad) { | |
2130 | sel->r = sink_fmt; | |
2131 | } else { | |
2132 | sel->r = *comp; | |
2133 | } | |
2134 | break; | |
5689b288 SA |
2135 | case V4L2_SEL_TGT_CROP: |
2136 | case V4L2_SEL_TGT_COMPOSE_BOUNDS: | |
ccfc97bd SA |
2137 | sel->r = *crops[sel->pad]; |
2138 | break; | |
5689b288 | 2139 | case V4L2_SEL_TGT_COMPOSE: |
ccfc97bd SA |
2140 | sel->r = *comp; |
2141 | break; | |
2142 | } | |
2143 | ||
2144 | return 0; | |
2145 | } | |
2146 | ||
2147 | static int smiapp_get_selection(struct v4l2_subdev *subdev, | |
2148 | struct v4l2_subdev_fh *fh, | |
2149 | struct v4l2_subdev_selection *sel) | |
2150 | { | |
2151 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
2152 | int rval; | |
2153 | ||
2154 | mutex_lock(&sensor->mutex); | |
2155 | rval = __smiapp_get_selection(subdev, fh, sel); | |
2156 | mutex_unlock(&sensor->mutex); | |
2157 | ||
2158 | return rval; | |
2159 | } | |
2160 | static int smiapp_set_selection(struct v4l2_subdev *subdev, | |
2161 | struct v4l2_subdev_fh *fh, | |
2162 | struct v4l2_subdev_selection *sel) | |
2163 | { | |
2164 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
2165 | int ret; | |
2166 | ||
2167 | ret = __smiapp_sel_supported(subdev, sel); | |
2168 | if (ret) | |
2169 | return ret; | |
2170 | ||
2171 | mutex_lock(&sensor->mutex); | |
2172 | ||
2173 | sel->r.left = max(0, sel->r.left & ~1); | |
2174 | sel->r.top = max(0, sel->r.top & ~1); | |
f90580ca RR |
2175 | sel->r.width = SMIAPP_ALIGN_DIM(sel->r.width, sel->flags); |
2176 | sel->r.height = SMIAPP_ALIGN_DIM(sel->r.height, sel->flags); | |
ccfc97bd SA |
2177 | |
2178 | sel->r.width = max_t(unsigned int, | |
2179 | sensor->limits[SMIAPP_LIMIT_MIN_X_OUTPUT_SIZE], | |
2180 | sel->r.width); | |
2181 | sel->r.height = max_t(unsigned int, | |
2182 | sensor->limits[SMIAPP_LIMIT_MIN_Y_OUTPUT_SIZE], | |
2183 | sel->r.height); | |
2184 | ||
2185 | switch (sel->target) { | |
5689b288 | 2186 | case V4L2_SEL_TGT_CROP: |
ccfc97bd SA |
2187 | ret = smiapp_set_crop(subdev, fh, sel); |
2188 | break; | |
5689b288 | 2189 | case V4L2_SEL_TGT_COMPOSE: |
ccfc97bd SA |
2190 | ret = smiapp_set_compose(subdev, fh, sel); |
2191 | break; | |
2192 | default: | |
2193 | BUG(); | |
2194 | } | |
2195 | ||
2196 | mutex_unlock(&sensor->mutex); | |
2197 | return ret; | |
2198 | } | |
2199 | ||
2200 | static int smiapp_get_skip_frames(struct v4l2_subdev *subdev, u32 *frames) | |
2201 | { | |
2202 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
2203 | ||
2204 | *frames = sensor->frame_skip; | |
2205 | return 0; | |
2206 | } | |
2207 | ||
2208 | /* ----------------------------------------------------------------------------- | |
2209 | * sysfs attributes | |
2210 | */ | |
2211 | ||
2212 | static ssize_t | |
2213 | smiapp_sysfs_nvm_read(struct device *dev, struct device_attribute *attr, | |
2214 | char *buf) | |
2215 | { | |
2216 | struct v4l2_subdev *subdev = i2c_get_clientdata(to_i2c_client(dev)); | |
2217 | struct i2c_client *client = v4l2_get_subdevdata(subdev); | |
2218 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
2219 | unsigned int nbytes; | |
2220 | ||
2221 | if (!sensor->dev_init_done) | |
2222 | return -EBUSY; | |
2223 | ||
2224 | if (!sensor->nvm_size) { | |
2225 | /* NVM not read yet - read it now */ | |
2226 | sensor->nvm_size = sensor->platform_data->nvm_size; | |
2227 | if (smiapp_set_power(subdev, 1) < 0) | |
2228 | return -ENODEV; | |
2229 | if (smiapp_read_nvm(sensor, sensor->nvm)) { | |
2230 | dev_err(&client->dev, "nvm read failed\n"); | |
2231 | return -ENODEV; | |
2232 | } | |
2233 | smiapp_set_power(subdev, 0); | |
2234 | } | |
2235 | /* | |
2236 | * NVM is still way below a PAGE_SIZE, so we can safely | |
2237 | * assume this for now. | |
2238 | */ | |
2239 | nbytes = min_t(unsigned int, sensor->nvm_size, PAGE_SIZE); | |
2240 | memcpy(buf, sensor->nvm, nbytes); | |
2241 | ||
2242 | return nbytes; | |
2243 | } | |
2244 | static DEVICE_ATTR(nvm, S_IRUGO, smiapp_sysfs_nvm_read, NULL); | |
2245 | ||
eba66b3e SA |
2246 | static ssize_t |
2247 | smiapp_sysfs_ident_read(struct device *dev, struct device_attribute *attr, | |
2248 | char *buf) | |
2249 | { | |
2250 | struct v4l2_subdev *subdev = i2c_get_clientdata(to_i2c_client(dev)); | |
2251 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
2252 | struct smiapp_module_info *minfo = &sensor->minfo; | |
2253 | ||
2254 | return snprintf(buf, PAGE_SIZE, "%2.2x%4.4x%2.2x\n", | |
2255 | minfo->manufacturer_id, minfo->model_id, | |
2256 | minfo->revision_number_major) + 1; | |
2257 | } | |
2258 | ||
2259 | static DEVICE_ATTR(ident, S_IRUGO, smiapp_sysfs_ident_read, NULL); | |
2260 | ||
ccfc97bd SA |
2261 | /* ----------------------------------------------------------------------------- |
2262 | * V4L2 subdev core operations | |
2263 | */ | |
2264 | ||
2265 | static int smiapp_identify_module(struct v4l2_subdev *subdev) | |
2266 | { | |
2267 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
2268 | struct i2c_client *client = v4l2_get_subdevdata(subdev); | |
2269 | struct smiapp_module_info *minfo = &sensor->minfo; | |
2270 | unsigned int i; | |
2271 | int rval = 0; | |
2272 | ||
2273 | minfo->name = SMIAPP_NAME; | |
2274 | ||
2275 | /* Module info */ | |
98add8e8 SA |
2276 | rval = smiapp_read_8only(sensor, SMIAPP_REG_U8_MANUFACTURER_ID, |
2277 | &minfo->manufacturer_id); | |
ccfc97bd | 2278 | if (!rval) |
98add8e8 SA |
2279 | rval = smiapp_read_8only(sensor, SMIAPP_REG_U16_MODEL_ID, |
2280 | &minfo->model_id); | |
ccfc97bd | 2281 | if (!rval) |
98add8e8 SA |
2282 | rval = smiapp_read_8only(sensor, |
2283 | SMIAPP_REG_U8_REVISION_NUMBER_MAJOR, | |
2284 | &minfo->revision_number_major); | |
ccfc97bd | 2285 | if (!rval) |
98add8e8 SA |
2286 | rval = smiapp_read_8only(sensor, |
2287 | SMIAPP_REG_U8_REVISION_NUMBER_MINOR, | |
2288 | &minfo->revision_number_minor); | |
ccfc97bd | 2289 | if (!rval) |
98add8e8 SA |
2290 | rval = smiapp_read_8only(sensor, |
2291 | SMIAPP_REG_U8_MODULE_DATE_YEAR, | |
2292 | &minfo->module_year); | |
ccfc97bd | 2293 | if (!rval) |
98add8e8 SA |
2294 | rval = smiapp_read_8only(sensor, |
2295 | SMIAPP_REG_U8_MODULE_DATE_MONTH, | |
2296 | &minfo->module_month); | |
ccfc97bd | 2297 | if (!rval) |
98add8e8 SA |
2298 | rval = smiapp_read_8only(sensor, SMIAPP_REG_U8_MODULE_DATE_DAY, |
2299 | &minfo->module_day); | |
ccfc97bd SA |
2300 | |
2301 | /* Sensor info */ | |
2302 | if (!rval) | |
98add8e8 SA |
2303 | rval = smiapp_read_8only(sensor, |
2304 | SMIAPP_REG_U8_SENSOR_MANUFACTURER_ID, | |
2305 | &minfo->sensor_manufacturer_id); | |
ccfc97bd | 2306 | if (!rval) |
98add8e8 SA |
2307 | rval = smiapp_read_8only(sensor, |
2308 | SMIAPP_REG_U16_SENSOR_MODEL_ID, | |
2309 | &minfo->sensor_model_id); | |
ccfc97bd | 2310 | if (!rval) |
98add8e8 SA |
2311 | rval = smiapp_read_8only(sensor, |
2312 | SMIAPP_REG_U8_SENSOR_REVISION_NUMBER, | |
2313 | &minfo->sensor_revision_number); | |
ccfc97bd | 2314 | if (!rval) |
98add8e8 SA |
2315 | rval = smiapp_read_8only(sensor, |
2316 | SMIAPP_REG_U8_SENSOR_FIRMWARE_VERSION, | |
2317 | &minfo->sensor_firmware_version); | |
ccfc97bd SA |
2318 | |
2319 | /* SMIA */ | |
2320 | if (!rval) | |
98add8e8 SA |
2321 | rval = smiapp_read_8only(sensor, SMIAPP_REG_U8_SMIA_VERSION, |
2322 | &minfo->smia_version); | |
ccfc97bd | 2323 | if (!rval) |
98add8e8 SA |
2324 | rval = smiapp_read_8only(sensor, SMIAPP_REG_U8_SMIAPP_VERSION, |
2325 | &minfo->smiapp_version); | |
ccfc97bd SA |
2326 | |
2327 | if (rval) { | |
2328 | dev_err(&client->dev, "sensor detection failed\n"); | |
2329 | return -ENODEV; | |
2330 | } | |
2331 | ||
2332 | dev_dbg(&client->dev, "module 0x%2.2x-0x%4.4x\n", | |
2333 | minfo->manufacturer_id, minfo->model_id); | |
2334 | ||
2335 | dev_dbg(&client->dev, | |
2336 | "module revision 0x%2.2x-0x%2.2x date %2.2d-%2.2d-%2.2d\n", | |
2337 | minfo->revision_number_major, minfo->revision_number_minor, | |
2338 | minfo->module_year, minfo->module_month, minfo->module_day); | |
2339 | ||
2340 | dev_dbg(&client->dev, "sensor 0x%2.2x-0x%4.4x\n", | |
2341 | minfo->sensor_manufacturer_id, minfo->sensor_model_id); | |
2342 | ||
2343 | dev_dbg(&client->dev, | |
2344 | "sensor revision 0x%2.2x firmware version 0x%2.2x\n", | |
2345 | minfo->sensor_revision_number, minfo->sensor_firmware_version); | |
2346 | ||
2347 | dev_dbg(&client->dev, "smia version %2.2d smiapp version %2.2d\n", | |
2348 | minfo->smia_version, minfo->smiapp_version); | |
2349 | ||
2350 | /* | |
2351 | * Some modules have bad data in the lvalues below. Hope the | |
2352 | * rvalues have better stuff. The lvalues are module | |
2353 | * parameters whereas the rvalues are sensor parameters. | |
2354 | */ | |
2355 | if (!minfo->manufacturer_id && !minfo->model_id) { | |
2356 | minfo->manufacturer_id = minfo->sensor_manufacturer_id; | |
2357 | minfo->model_id = minfo->sensor_model_id; | |
2358 | minfo->revision_number_major = minfo->sensor_revision_number; | |
2359 | } | |
2360 | ||
2361 | for (i = 0; i < ARRAY_SIZE(smiapp_module_idents); i++) { | |
2362 | if (smiapp_module_idents[i].manufacturer_id | |
2363 | != minfo->manufacturer_id) | |
2364 | continue; | |
2365 | if (smiapp_module_idents[i].model_id != minfo->model_id) | |
2366 | continue; | |
2367 | if (smiapp_module_idents[i].flags | |
2368 | & SMIAPP_MODULE_IDENT_FLAG_REV_LE) { | |
2369 | if (smiapp_module_idents[i].revision_number_major | |
2370 | < minfo->revision_number_major) | |
2371 | continue; | |
2372 | } else { | |
2373 | if (smiapp_module_idents[i].revision_number_major | |
2374 | != minfo->revision_number_major) | |
2375 | continue; | |
2376 | } | |
2377 | ||
2378 | minfo->name = smiapp_module_idents[i].name; | |
2379 | minfo->quirk = smiapp_module_idents[i].quirk; | |
2380 | break; | |
2381 | } | |
2382 | ||
2383 | if (i >= ARRAY_SIZE(smiapp_module_idents)) | |
2384 | dev_warn(&client->dev, | |
2385 | "no quirks for this module; let's hope it's fully compliant\n"); | |
2386 | ||
2387 | dev_dbg(&client->dev, "the sensor is called %s, ident %2.2x%4.4x%2.2x\n", | |
2388 | minfo->name, minfo->manufacturer_id, minfo->model_id, | |
2389 | minfo->revision_number_major); | |
2390 | ||
2391 | strlcpy(subdev->name, sensor->minfo.name, sizeof(subdev->name)); | |
2392 | ||
2393 | return 0; | |
2394 | } | |
2395 | ||
2396 | static const struct v4l2_subdev_ops smiapp_ops; | |
2397 | static const struct v4l2_subdev_internal_ops smiapp_internal_ops; | |
2398 | static const struct media_entity_operations smiapp_entity_ops; | |
2399 | ||
2400 | static int smiapp_registered(struct v4l2_subdev *subdev) | |
2401 | { | |
2402 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
2403 | struct i2c_client *client = v4l2_get_subdevdata(subdev); | |
1e9240b3 | 2404 | struct smiapp_pll *pll = &sensor->pll; |
ccfc97bd SA |
2405 | struct smiapp_subdev *last = NULL; |
2406 | u32 tmp; | |
2407 | unsigned int i; | |
2408 | int rval; | |
2409 | ||
5fba9888 | 2410 | sensor->vana = devm_regulator_get(&client->dev, "vana"); |
ccfc97bd SA |
2411 | if (IS_ERR(sensor->vana)) { |
2412 | dev_err(&client->dev, "could not get regulator for vana\n"); | |
24644035 | 2413 | return PTR_ERR(sensor->vana); |
ccfc97bd SA |
2414 | } |
2415 | ||
2547428d | 2416 | if (!sensor->platform_data->set_xclk) { |
a354177f | 2417 | sensor->ext_clk = devm_clk_get(&client->dev, "ext_clk"); |
2547428d | 2418 | if (IS_ERR(sensor->ext_clk)) { |
a354177f | 2419 | dev_err(&client->dev, "could not get clock\n"); |
24644035 | 2420 | return PTR_ERR(sensor->ext_clk); |
2547428d SA |
2421 | } |
2422 | ||
2423 | rval = clk_set_rate(sensor->ext_clk, | |
2424 | sensor->platform_data->ext_clk); | |
2425 | if (rval < 0) { | |
2426 | dev_err(&client->dev, | |
a354177f | 2427 | "unable to set clock freq to %u\n", |
2547428d | 2428 | sensor->platform_data->ext_clk); |
24644035 | 2429 | return rval; |
2547428d SA |
2430 | } |
2431 | } | |
2432 | ||
9945374e | 2433 | if (gpio_is_valid(sensor->platform_data->xshutdown)) { |
24644035 SA |
2434 | rval = devm_gpio_request_one( |
2435 | &client->dev, sensor->platform_data->xshutdown, 0, | |
2436 | "SMIA++ xshutdown"); | |
2437 | if (rval < 0) { | |
ccfc97bd SA |
2438 | dev_err(&client->dev, |
2439 | "unable to acquire reset gpio %d\n", | |
2440 | sensor->platform_data->xshutdown); | |
24644035 | 2441 | return rval; |
ccfc97bd SA |
2442 | } |
2443 | } | |
2444 | ||
2445 | rval = smiapp_power_on(sensor); | |
b015ba29 LP |
2446 | if (rval) |
2447 | return -ENODEV; | |
ccfc97bd SA |
2448 | |
2449 | rval = smiapp_identify_module(subdev); | |
2450 | if (rval) { | |
2451 | rval = -ENODEV; | |
2452 | goto out_power_off; | |
2453 | } | |
2454 | ||
2455 | rval = smiapp_get_all_limits(sensor); | |
2456 | if (rval) { | |
2457 | rval = -ENODEV; | |
2458 | goto out_power_off; | |
2459 | } | |
2460 | ||
2461 | /* | |
2462 | * Handle Sensor Module orientation on the board. | |
2463 | * | |
2464 | * The application of H-FLIP and V-FLIP on the sensor is modified by | |
2465 | * the sensor orientation on the board. | |
2466 | * | |
2467 | * For SMIAPP_BOARD_SENSOR_ORIENT_180 the default behaviour is to set | |
2468 | * both H-FLIP and V-FLIP for normal operation which also implies | |
2469 | * that a set/unset operation for user space HFLIP and VFLIP v4l2 | |
2470 | * controls will need to be internally inverted. | |
2471 | * | |
2472 | * Rotation also changes the bayer pattern. | |
2473 | */ | |
2474 | if (sensor->platform_data->module_board_orient == | |
2475 | SMIAPP_MODULE_BOARD_ORIENT_180) | |
2476 | sensor->hvflip_inv_mask = SMIAPP_IMAGE_ORIENTATION_HFLIP | | |
2477 | SMIAPP_IMAGE_ORIENTATION_VFLIP; | |
2478 | ||
e5a3f7b8 SA |
2479 | rval = smiapp_call_quirk(sensor, limits); |
2480 | if (rval) { | |
2481 | dev_err(&client->dev, "limits quirks failed\n"); | |
2482 | goto out_power_off; | |
2483 | } | |
2484 | ||
ccfc97bd SA |
2485 | rval = smiapp_get_mbus_formats(sensor); |
2486 | if (rval) { | |
2487 | rval = -ENODEV; | |
2488 | goto out_power_off; | |
2489 | } | |
2490 | ||
2491 | if (sensor->limits[SMIAPP_LIMIT_BINNING_CAPABILITY]) { | |
2492 | u32 val; | |
2493 | ||
1e73eea7 | 2494 | rval = smiapp_read(sensor, |
ccfc97bd SA |
2495 | SMIAPP_REG_U8_BINNING_SUBTYPES, &val); |
2496 | if (rval < 0) { | |
2497 | rval = -ENODEV; | |
2498 | goto out_power_off; | |
2499 | } | |
2500 | sensor->nbinning_subtypes = min_t(u8, val, | |
2501 | SMIAPP_BINNING_SUBTYPES); | |
2502 | ||
2503 | for (i = 0; i < sensor->nbinning_subtypes; i++) { | |
2504 | rval = smiapp_read( | |
1e73eea7 | 2505 | sensor, SMIAPP_REG_U8_BINNING_TYPE_n(i), &val); |
ccfc97bd SA |
2506 | if (rval < 0) { |
2507 | rval = -ENODEV; | |
2508 | goto out_power_off; | |
2509 | } | |
2510 | sensor->binning_subtypes[i] = | |
2511 | *(struct smiapp_binning_subtype *)&val; | |
2512 | ||
2513 | dev_dbg(&client->dev, "binning %xx%x\n", | |
2514 | sensor->binning_subtypes[i].horizontal, | |
2515 | sensor->binning_subtypes[i].vertical); | |
2516 | } | |
2517 | } | |
2518 | sensor->binning_horizontal = 1; | |
2519 | sensor->binning_vertical = 1; | |
2520 | ||
eba66b3e SA |
2521 | if (device_create_file(&client->dev, &dev_attr_ident) != 0) { |
2522 | dev_err(&client->dev, "sysfs ident entry creation failed\n"); | |
2523 | rval = -ENOENT; | |
2524 | goto out_power_off; | |
2525 | } | |
ccfc97bd SA |
2526 | /* SMIA++ NVM initialization - it will be read from the sensor |
2527 | * when it is first requested by userspace. | |
2528 | */ | |
2529 | if (sensor->minfo.smiapp_version && sensor->platform_data->nvm_size) { | |
31c1d17b SK |
2530 | sensor->nvm = devm_kzalloc(&client->dev, |
2531 | sensor->platform_data->nvm_size, GFP_KERNEL); | |
ccfc97bd SA |
2532 | if (sensor->nvm == NULL) { |
2533 | dev_err(&client->dev, "nvm buf allocation failed\n"); | |
2534 | rval = -ENOMEM; | |
eba66b3e | 2535 | goto out_ident_release; |
ccfc97bd SA |
2536 | } |
2537 | ||
2538 | if (device_create_file(&client->dev, &dev_attr_nvm) != 0) { | |
2539 | dev_err(&client->dev, "sysfs nvm entry failed\n"); | |
2540 | rval = -EBUSY; | |
eba66b3e | 2541 | goto out_ident_release; |
ccfc97bd SA |
2542 | } |
2543 | } | |
2544 | ||
ccfc97bd SA |
2545 | /* We consider this as profile 0 sensor if any of these are zero. */ |
2546 | if (!sensor->limits[SMIAPP_LIMIT_MIN_OP_SYS_CLK_DIV] || | |
2547 | !sensor->limits[SMIAPP_LIMIT_MAX_OP_SYS_CLK_DIV] || | |
2548 | !sensor->limits[SMIAPP_LIMIT_MIN_OP_PIX_CLK_DIV] || | |
2549 | !sensor->limits[SMIAPP_LIMIT_MAX_OP_PIX_CLK_DIV]) { | |
2550 | sensor->minfo.smiapp_profile = SMIAPP_PROFILE_0; | |
2551 | } else if (sensor->limits[SMIAPP_LIMIT_SCALING_CAPABILITY] | |
2552 | != SMIAPP_SCALING_CAPABILITY_NONE) { | |
2553 | if (sensor->limits[SMIAPP_LIMIT_SCALING_CAPABILITY] | |
2554 | == SMIAPP_SCALING_CAPABILITY_HORIZONTAL) | |
2555 | sensor->minfo.smiapp_profile = SMIAPP_PROFILE_1; | |
2556 | else | |
2557 | sensor->minfo.smiapp_profile = SMIAPP_PROFILE_2; | |
2558 | sensor->scaler = &sensor->ssds[sensor->ssds_used]; | |
2559 | sensor->ssds_used++; | |
2560 | } else if (sensor->limits[SMIAPP_LIMIT_DIGITAL_CROP_CAPABILITY] | |
2561 | == SMIAPP_DIGITAL_CROP_CAPABILITY_INPUT_CROP) { | |
2562 | sensor->scaler = &sensor->ssds[sensor->ssds_used]; | |
2563 | sensor->ssds_used++; | |
2564 | } | |
2565 | sensor->binner = &sensor->ssds[sensor->ssds_used]; | |
2566 | sensor->ssds_used++; | |
2567 | sensor->pixel_array = &sensor->ssds[sensor->ssds_used]; | |
2568 | sensor->ssds_used++; | |
2569 | ||
2570 | sensor->scale_m = sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN]; | |
2571 | ||
2572 | for (i = 0; i < SMIAPP_SUBDEVS; i++) { | |
2573 | struct { | |
2574 | struct smiapp_subdev *ssd; | |
2575 | char *name; | |
2576 | } const __this[] = { | |
2577 | { sensor->scaler, "scaler", }, | |
2578 | { sensor->binner, "binner", }, | |
2579 | { sensor->pixel_array, "pixel array", }, | |
2580 | }, *_this = &__this[i]; | |
2581 | struct smiapp_subdev *this = _this->ssd; | |
2582 | ||
2583 | if (!this) | |
2584 | continue; | |
2585 | ||
2586 | if (this != sensor->src) | |
2587 | v4l2_subdev_init(&this->sd, &smiapp_ops); | |
2588 | ||
2589 | this->sensor = sensor; | |
2590 | ||
2591 | if (this == sensor->pixel_array) { | |
2592 | this->npads = 1; | |
2593 | } else { | |
2594 | this->npads = 2; | |
2595 | this->source_pad = 1; | |
2596 | } | |
2597 | ||
2598 | snprintf(this->sd.name, | |
f8d36b89 SA |
2599 | sizeof(this->sd.name), "%s %s %d-%4.4x", |
2600 | sensor->minfo.name, _this->name, | |
2601 | i2c_adapter_id(client->adapter), client->addr); | |
ccfc97bd SA |
2602 | |
2603 | this->sink_fmt.width = | |
2604 | sensor->limits[SMIAPP_LIMIT_X_ADDR_MAX] + 1; | |
2605 | this->sink_fmt.height = | |
2606 | sensor->limits[SMIAPP_LIMIT_Y_ADDR_MAX] + 1; | |
2607 | this->compose.width = this->sink_fmt.width; | |
2608 | this->compose.height = this->sink_fmt.height; | |
2609 | this->crop[this->source_pad] = this->compose; | |
2610 | this->pads[this->source_pad].flags = MEDIA_PAD_FL_SOURCE; | |
2611 | if (this != sensor->pixel_array) { | |
2612 | this->crop[this->sink_pad] = this->compose; | |
2613 | this->pads[this->sink_pad].flags = MEDIA_PAD_FL_SINK; | |
2614 | } | |
2615 | ||
2616 | this->sd.entity.ops = &smiapp_entity_ops; | |
2617 | ||
2618 | if (last == NULL) { | |
2619 | last = this; | |
2620 | continue; | |
2621 | } | |
2622 | ||
2623 | this->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; | |
2624 | this->sd.internal_ops = &smiapp_internal_ops; | |
60b31b72 | 2625 | this->sd.owner = THIS_MODULE; |
ccfc97bd SA |
2626 | v4l2_set_subdevdata(&this->sd, client); |
2627 | ||
2628 | rval = media_entity_init(&this->sd.entity, | |
2629 | this->npads, this->pads, 0); | |
2630 | if (rval) { | |
2631 | dev_err(&client->dev, | |
2632 | "media_entity_init failed\n"); | |
2633 | goto out_nvm_release; | |
2634 | } | |
2635 | ||
2636 | rval = media_entity_create_link(&this->sd.entity, | |
2637 | this->source_pad, | |
2638 | &last->sd.entity, | |
2639 | last->sink_pad, | |
2640 | MEDIA_LNK_FL_ENABLED | | |
2641 | MEDIA_LNK_FL_IMMUTABLE); | |
2642 | if (rval) { | |
2643 | dev_err(&client->dev, | |
2644 | "media_entity_create_link failed\n"); | |
2645 | goto out_nvm_release; | |
2646 | } | |
2647 | ||
2648 | rval = v4l2_device_register_subdev(sensor->src->sd.v4l2_dev, | |
2649 | &this->sd); | |
2650 | if (rval) { | |
2651 | dev_err(&client->dev, | |
2652 | "v4l2_device_register_subdev failed\n"); | |
2653 | goto out_nvm_release; | |
2654 | } | |
2655 | ||
2656 | last = this; | |
2657 | } | |
2658 | ||
2659 | dev_dbg(&client->dev, "profile %d\n", sensor->minfo.smiapp_profile); | |
2660 | ||
2661 | sensor->pixel_array->sd.entity.type = MEDIA_ENT_T_V4L2_SUBDEV_SENSOR; | |
2662 | ||
2663 | /* final steps */ | |
2664 | smiapp_read_frame_fmt(sensor); | |
2665 | rval = smiapp_init_controls(sensor); | |
2666 | if (rval < 0) | |
2667 | goto out_nvm_release; | |
2668 | ||
1e9240b3 | 2669 | /* prepare PLL configuration input values */ |
f5984bbd SA |
2670 | pll->bus_type = SMIAPP_PLL_BUS_TYPE_CSI2; |
2671 | pll->csi2.lanes = sensor->platform_data->lanes; | |
1e9240b3 | 2672 | pll->ext_clk_freq_hz = sensor->platform_data->ext_clk; |
03efb2a0 SA |
2673 | pll->flags = smiapp_call_quirk(sensor, pll_flags); |
2674 | ||
1e9240b3 SA |
2675 | /* Profile 0 sensors have no separate OP clock branch. */ |
2676 | if (sensor->minfo.smiapp_profile == SMIAPP_PROFILE_0) | |
2677 | pll->flags |= SMIAPP_PLL_FLAG_NO_OP_CLOCKS; | |
1e9240b3 SA |
2678 | pll->scale_n = sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN]; |
2679 | ||
ccfc97bd SA |
2680 | rval = smiapp_update_mode(sensor); |
2681 | if (rval) { | |
2682 | dev_err(&client->dev, "update mode failed\n"); | |
2683 | goto out_nvm_release; | |
2684 | } | |
2685 | ||
2686 | sensor->streaming = false; | |
2687 | sensor->dev_init_done = true; | |
2688 | ||
2689 | /* check flash capability */ | |
1e73eea7 | 2690 | rval = smiapp_read(sensor, SMIAPP_REG_U8_FLASH_MODE_CAPABILITY, &tmp); |
ccfc97bd SA |
2691 | sensor->flash_capability = tmp; |
2692 | if (rval) | |
2693 | goto out_nvm_release; | |
2694 | ||
2695 | smiapp_power_off(sensor); | |
2696 | ||
2697 | return 0; | |
2698 | ||
2699 | out_nvm_release: | |
2700 | device_remove_file(&client->dev, &dev_attr_nvm); | |
2701 | ||
eba66b3e SA |
2702 | out_ident_release: |
2703 | device_remove_file(&client->dev, &dev_attr_ident); | |
2704 | ||
ccfc97bd | 2705 | out_power_off: |
ccfc97bd | 2706 | smiapp_power_off(sensor); |
ccfc97bd SA |
2707 | return rval; |
2708 | } | |
2709 | ||
2710 | static int smiapp_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) | |
2711 | { | |
2712 | struct smiapp_subdev *ssd = to_smiapp_subdev(sd); | |
2713 | struct smiapp_sensor *sensor = ssd->sensor; | |
2714 | u32 mbus_code = | |
2715 | smiapp_csi_data_formats[smiapp_pixel_order(sensor)].code; | |
2716 | unsigned int i; | |
2717 | ||
2718 | mutex_lock(&sensor->mutex); | |
2719 | ||
2720 | for (i = 0; i < ssd->npads; i++) { | |
2721 | struct v4l2_mbus_framefmt *try_fmt = | |
2722 | v4l2_subdev_get_try_format(fh, i); | |
2723 | struct v4l2_rect *try_crop = v4l2_subdev_get_try_crop(fh, i); | |
2724 | struct v4l2_rect *try_comp; | |
2725 | ||
2726 | try_fmt->width = sensor->limits[SMIAPP_LIMIT_X_ADDR_MAX] + 1; | |
2727 | try_fmt->height = sensor->limits[SMIAPP_LIMIT_Y_ADDR_MAX] + 1; | |
2728 | try_fmt->code = mbus_code; | |
7ed0b291 | 2729 | try_fmt->field = V4L2_FIELD_NONE; |
ccfc97bd SA |
2730 | |
2731 | try_crop->top = 0; | |
2732 | try_crop->left = 0; | |
2733 | try_crop->width = try_fmt->width; | |
2734 | try_crop->height = try_fmt->height; | |
2735 | ||
2736 | if (ssd != sensor->pixel_array) | |
2737 | continue; | |
2738 | ||
2739 | try_comp = v4l2_subdev_get_try_compose(fh, i); | |
2740 | *try_comp = *try_crop; | |
2741 | } | |
2742 | ||
2743 | mutex_unlock(&sensor->mutex); | |
2744 | ||
2745 | return smiapp_set_power(sd, 1); | |
2746 | } | |
2747 | ||
2748 | static int smiapp_close(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) | |
2749 | { | |
2750 | return smiapp_set_power(sd, 0); | |
2751 | } | |
2752 | ||
2753 | static const struct v4l2_subdev_video_ops smiapp_video_ops = { | |
2754 | .s_stream = smiapp_set_stream, | |
2755 | }; | |
2756 | ||
2757 | static const struct v4l2_subdev_core_ops smiapp_core_ops = { | |
2758 | .s_power = smiapp_set_power, | |
2759 | }; | |
2760 | ||
2761 | static const struct v4l2_subdev_pad_ops smiapp_pad_ops = { | |
2762 | .enum_mbus_code = smiapp_enum_mbus_code, | |
2763 | .get_fmt = smiapp_get_format, | |
2764 | .set_fmt = smiapp_set_format, | |
2765 | .get_selection = smiapp_get_selection, | |
2766 | .set_selection = smiapp_set_selection, | |
2767 | }; | |
2768 | ||
2769 | static const struct v4l2_subdev_sensor_ops smiapp_sensor_ops = { | |
2770 | .g_skip_frames = smiapp_get_skip_frames, | |
2771 | }; | |
2772 | ||
2773 | static const struct v4l2_subdev_ops smiapp_ops = { | |
2774 | .core = &smiapp_core_ops, | |
2775 | .video = &smiapp_video_ops, | |
2776 | .pad = &smiapp_pad_ops, | |
2777 | .sensor = &smiapp_sensor_ops, | |
2778 | }; | |
2779 | ||
2780 | static const struct media_entity_operations smiapp_entity_ops = { | |
2781 | .link_validate = v4l2_subdev_link_validate, | |
2782 | }; | |
2783 | ||
2784 | static const struct v4l2_subdev_internal_ops smiapp_internal_src_ops = { | |
2785 | .registered = smiapp_registered, | |
2786 | .open = smiapp_open, | |
2787 | .close = smiapp_close, | |
2788 | }; | |
2789 | ||
2790 | static const struct v4l2_subdev_internal_ops smiapp_internal_ops = { | |
2791 | .open = smiapp_open, | |
2792 | .close = smiapp_close, | |
2793 | }; | |
2794 | ||
2795 | /* ----------------------------------------------------------------------------- | |
2796 | * I2C Driver | |
2797 | */ | |
2798 | ||
2799 | #ifdef CONFIG_PM | |
2800 | ||
2801 | static int smiapp_suspend(struct device *dev) | |
2802 | { | |
2803 | struct i2c_client *client = to_i2c_client(dev); | |
2804 | struct v4l2_subdev *subdev = i2c_get_clientdata(client); | |
2805 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
2806 | bool streaming; | |
2807 | ||
2808 | BUG_ON(mutex_is_locked(&sensor->mutex)); | |
2809 | ||
2810 | if (sensor->power_count == 0) | |
2811 | return 0; | |
2812 | ||
2813 | if (sensor->streaming) | |
2814 | smiapp_stop_streaming(sensor); | |
2815 | ||
2816 | streaming = sensor->streaming; | |
2817 | ||
2818 | smiapp_power_off(sensor); | |
2819 | ||
2820 | /* save state for resume */ | |
2821 | sensor->streaming = streaming; | |
2822 | ||
2823 | return 0; | |
2824 | } | |
2825 | ||
2826 | static int smiapp_resume(struct device *dev) | |
2827 | { | |
2828 | struct i2c_client *client = to_i2c_client(dev); | |
2829 | struct v4l2_subdev *subdev = i2c_get_clientdata(client); | |
2830 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
2831 | int rval; | |
2832 | ||
2833 | if (sensor->power_count == 0) | |
2834 | return 0; | |
2835 | ||
2836 | rval = smiapp_power_on(sensor); | |
2837 | if (rval) | |
2838 | return rval; | |
2839 | ||
2840 | if (sensor->streaming) | |
2841 | rval = smiapp_start_streaming(sensor); | |
2842 | ||
2843 | return rval; | |
2844 | } | |
2845 | ||
2846 | #else | |
2847 | ||
2848 | #define smiapp_suspend NULL | |
2849 | #define smiapp_resume NULL | |
2850 | ||
2851 | #endif /* CONFIG_PM */ | |
2852 | ||
2853 | static int smiapp_probe(struct i2c_client *client, | |
2854 | const struct i2c_device_id *devid) | |
2855 | { | |
2856 | struct smiapp_sensor *sensor; | |
ccfc97bd SA |
2857 | |
2858 | if (client->dev.platform_data == NULL) | |
2859 | return -ENODEV; | |
2860 | ||
31c1d17b | 2861 | sensor = devm_kzalloc(&client->dev, sizeof(*sensor), GFP_KERNEL); |
ccfc97bd SA |
2862 | if (sensor == NULL) |
2863 | return -ENOMEM; | |
2864 | ||
2865 | sensor->platform_data = client->dev.platform_data; | |
2866 | mutex_init(&sensor->mutex); | |
2867 | mutex_init(&sensor->power_mutex); | |
2868 | sensor->src = &sensor->ssds[sensor->ssds_used]; | |
2869 | ||
2870 | v4l2_i2c_subdev_init(&sensor->src->sd, client, &smiapp_ops); | |
2871 | sensor->src->sd.internal_ops = &smiapp_internal_src_ops; | |
2872 | sensor->src->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; | |
2873 | sensor->src->sensor = sensor; | |
2874 | ||
2875 | sensor->src->pads[0].flags = MEDIA_PAD_FL_SOURCE; | |
31c1d17b | 2876 | return media_entity_init(&sensor->src->sd.entity, 2, |
ccfc97bd | 2877 | sensor->src->pads, 0); |
ccfc97bd SA |
2878 | } |
2879 | ||
bf306900 | 2880 | static int smiapp_remove(struct i2c_client *client) |
ccfc97bd SA |
2881 | { |
2882 | struct v4l2_subdev *subdev = i2c_get_clientdata(client); | |
2883 | struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); | |
2884 | unsigned int i; | |
2885 | ||
2886 | if (sensor->power_count) { | |
9945374e | 2887 | if (gpio_is_valid(sensor->platform_data->xshutdown)) |
ccfc97bd | 2888 | gpio_set_value(sensor->platform_data->xshutdown, 0); |
2547428d SA |
2889 | if (sensor->platform_data->set_xclk) |
2890 | sensor->platform_data->set_xclk(&sensor->src->sd, 0); | |
2891 | else | |
d0aae004 | 2892 | clk_disable_unprepare(sensor->ext_clk); |
ccfc97bd SA |
2893 | sensor->power_count = 0; |
2894 | } | |
2895 | ||
eba66b3e | 2896 | device_remove_file(&client->dev, &dev_attr_ident); |
31c1d17b | 2897 | if (sensor->nvm) |
ccfc97bd | 2898 | device_remove_file(&client->dev, &dev_attr_nvm); |
ccfc97bd SA |
2899 | |
2900 | for (i = 0; i < sensor->ssds_used; i++) { | |
ccfc97bd | 2901 | v4l2_device_unregister_subdev(&sensor->ssds[i].sd); |
2a3e7256 | 2902 | media_entity_cleanup(&sensor->ssds[i].sd.entity); |
ccfc97bd SA |
2903 | } |
2904 | smiapp_free_controls(sensor); | |
ccfc97bd SA |
2905 | |
2906 | return 0; | |
2907 | } | |
2908 | ||
2909 | static const struct i2c_device_id smiapp_id_table[] = { | |
2910 | { SMIAPP_NAME, 0 }, | |
2911 | { }, | |
2912 | }; | |
2913 | MODULE_DEVICE_TABLE(i2c, smiapp_id_table); | |
2914 | ||
2915 | static const struct dev_pm_ops smiapp_pm_ops = { | |
2916 | .suspend = smiapp_suspend, | |
2917 | .resume = smiapp_resume, | |
2918 | }; | |
2919 | ||
2920 | static struct i2c_driver smiapp_i2c_driver = { | |
2921 | .driver = { | |
2922 | .name = SMIAPP_NAME, | |
2923 | .pm = &smiapp_pm_ops, | |
2924 | }, | |
2925 | .probe = smiapp_probe, | |
bf306900 | 2926 | .remove = smiapp_remove, |
ccfc97bd SA |
2927 | .id_table = smiapp_id_table, |
2928 | }; | |
2929 | ||
2930 | module_i2c_driver(smiapp_i2c_driver); | |
2931 | ||
8c5dff90 | 2932 | MODULE_AUTHOR("Sakari Ailus <sakari.ailus@iki.fi>"); |
ccfc97bd SA |
2933 | MODULE_DESCRIPTION("Generic SMIA/SMIA++ camera module driver"); |
2934 | MODULE_LICENSE("GPL"); |