2 * drivers/media/video/smiapp/smiapp-core.c
4 * Generic driver for SMIA/SMIA++ compliant camera modules
6 * Copyright (C) 2010--2012 Nokia Corporation
7 * Contact: Sakari Ailus <sakari.ailus@maxwell.research.nokia.com>
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>
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.
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.
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
29 #include <linux/clk.h>
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>
35 #include <linux/v4l2-mediabus.h>
36 #include <media/v4l2-device.h>
40 #define SMIAPP_ALIGN_DIM(dim, flags) \
41 ((flags) & V4L2_SUBDEV_SEL_FLAG_SIZE_GE \
46 * smiapp_module_idents - supported camera modules
48 static const struct smiapp_module_ident smiapp_module_idents
[] = {
49 SMIAPP_IDENT_L(0x01, 0x022b, -1, "vs6555"),
50 SMIAPP_IDENT_L(0x01, 0x022e, -1, "vw6558"),
51 SMIAPP_IDENT_L(0x07, 0x7698, -1, "ovm7698"),
52 SMIAPP_IDENT_L(0x0b, 0x4242, -1, "smiapp-003"),
53 SMIAPP_IDENT_L(0x0c, 0x208a, -1, "tcm8330md"),
54 SMIAPP_IDENT_LQ(0x0c, 0x2134, -1, "tcm8500md", &smiapp_tcm8500md_quirk
),
55 SMIAPP_IDENT_L(0x0c, 0x213e, -1, "et8en2"),
56 SMIAPP_IDENT_L(0x0c, 0x2184, -1, "tcm8580md"),
57 SMIAPP_IDENT_LQ(0x0c, 0x560f, -1, "jt8ew9", &smiapp_jt8ew9_quirk
),
58 SMIAPP_IDENT_LQ(0x10, 0x4141, -1, "jt8ev1", &smiapp_jt8ev1_quirk
),
59 SMIAPP_IDENT_LQ(0x10, 0x4241, -1, "imx125es", &smiapp_imx125es_quirk
),
64 * Dynamic Capability Identification
68 static int smiapp_read_frame_fmt(struct smiapp_sensor
*sensor
)
70 struct i2c_client
*client
= v4l2_get_subdevdata(&sensor
->src
->sd
);
71 u32 fmt_model_type
, fmt_model_subtype
, ncol_desc
, nrow_desc
;
75 int embedded_start
= -1, embedded_end
= -1;
78 rval
= smiapp_read(sensor
, SMIAPP_REG_U8_FRAME_FORMAT_MODEL_TYPE
,
83 rval
= smiapp_read(sensor
, SMIAPP_REG_U8_FRAME_FORMAT_MODEL_SUBTYPE
,
88 ncol_desc
= (fmt_model_subtype
89 & SMIAPP_FRAME_FORMAT_MODEL_SUBTYPE_NCOLS_MASK
)
90 >> SMIAPP_FRAME_FORMAT_MODEL_SUBTYPE_NCOLS_SHIFT
;
91 nrow_desc
= fmt_model_subtype
92 & SMIAPP_FRAME_FORMAT_MODEL_SUBTYPE_NROWS_MASK
;
94 dev_dbg(&client
->dev
, "format_model_type %s\n",
95 fmt_model_type
== SMIAPP_FRAME_FORMAT_MODEL_TYPE_2BYTE
97 fmt_model_type
== SMIAPP_FRAME_FORMAT_MODEL_TYPE_4BYTE
98 ? "4 byte" : "is simply bad");
100 for (i
= 0; i
< ncol_desc
+ nrow_desc
; i
++) {
107 if (fmt_model_type
== SMIAPP_FRAME_FORMAT_MODEL_TYPE_2BYTE
) {
110 SMIAPP_REG_U16_FRAME_FORMAT_DESCRIPTOR_2(i
),
117 & SMIAPP_FRAME_FORMAT_DESC_2_PIXELCODE_MASK
)
118 >> SMIAPP_FRAME_FORMAT_DESC_2_PIXELCODE_SHIFT
;
119 pixels
= desc
& SMIAPP_FRAME_FORMAT_DESC_2_PIXELS_MASK
;
120 } else if (fmt_model_type
121 == SMIAPP_FRAME_FORMAT_MODEL_TYPE_4BYTE
) {
124 SMIAPP_REG_U32_FRAME_FORMAT_DESCRIPTOR_4(i
),
131 & SMIAPP_FRAME_FORMAT_DESC_4_PIXELCODE_MASK
)
132 >> SMIAPP_FRAME_FORMAT_DESC_4_PIXELCODE_SHIFT
;
133 pixels
= desc
& SMIAPP_FRAME_FORMAT_DESC_4_PIXELS_MASK
;
135 dev_dbg(&client
->dev
,
136 "invalid frame format model type %d\n",
147 case SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_EMBEDDED
:
150 case SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_DUMMY
:
153 case SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_BLACK
:
156 case SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_DARK
:
159 case SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_VISIBLE
:
164 dev_dbg(&client
->dev
, "pixelcode %d\n", pixelcode
);
168 dev_dbg(&client
->dev
, "%s pixels: %d %s\n",
169 what
, pixels
, which
);
174 /* Handle row descriptors */
176 == SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_EMBEDDED
) {
177 embedded_start
= line_count
;
179 if (pixelcode
== SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_VISIBLE
180 || pixels
>= sensor
->limits
[SMIAPP_LIMIT_MIN_FRAME_LENGTH_LINES
] / 2)
181 image_start
= line_count
;
182 if (embedded_start
!= -1 && embedded_end
== -1)
183 embedded_end
= line_count
;
185 line_count
+= pixels
;
188 if (embedded_start
== -1 || embedded_end
== -1) {
193 dev_dbg(&client
->dev
, "embedded data from lines %d to %d\n",
194 embedded_start
, embedded_end
);
195 dev_dbg(&client
->dev
, "image data starts at line %d\n", image_start
);
200 static int smiapp_pll_configure(struct smiapp_sensor
*sensor
)
202 struct smiapp_pll
*pll
= &sensor
->pll
;
206 sensor
, SMIAPP_REG_U16_VT_PIX_CLK_DIV
, pll
->vt_pix_clk_div
);
211 sensor
, SMIAPP_REG_U16_VT_SYS_CLK_DIV
, pll
->vt_sys_clk_div
);
216 sensor
, SMIAPP_REG_U16_PRE_PLL_CLK_DIV
, pll
->pre_pll_clk_div
);
221 sensor
, SMIAPP_REG_U16_PLL_MULTIPLIER
, pll
->pll_multiplier
);
225 /* Lane op clock ratio does not apply here. */
227 sensor
, SMIAPP_REG_U32_REQUESTED_LINK_BIT_RATE_MBPS
,
228 DIV_ROUND_UP(pll
->op_sys_clk_freq_hz
, 1000000 / 256 / 256));
229 if (rval
< 0 || sensor
->minfo
.smiapp_profile
== SMIAPP_PROFILE_0
)
233 sensor
, SMIAPP_REG_U16_OP_PIX_CLK_DIV
, pll
->op_pix_clk_div
);
238 sensor
, SMIAPP_REG_U16_OP_SYS_CLK_DIV
, pll
->op_sys_clk_div
);
241 static int smiapp_pll_update(struct smiapp_sensor
*sensor
)
243 struct i2c_client
*client
= v4l2_get_subdevdata(&sensor
->src
->sd
);
244 struct smiapp_pll_limits lim
= {
245 .min_pre_pll_clk_div
= sensor
->limits
[SMIAPP_LIMIT_MIN_PRE_PLL_CLK_DIV
],
246 .max_pre_pll_clk_div
= sensor
->limits
[SMIAPP_LIMIT_MAX_PRE_PLL_CLK_DIV
],
247 .min_pll_ip_freq_hz
= sensor
->limits
[SMIAPP_LIMIT_MIN_PLL_IP_FREQ_HZ
],
248 .max_pll_ip_freq_hz
= sensor
->limits
[SMIAPP_LIMIT_MAX_PLL_IP_FREQ_HZ
],
249 .min_pll_multiplier
= sensor
->limits
[SMIAPP_LIMIT_MIN_PLL_MULTIPLIER
],
250 .max_pll_multiplier
= sensor
->limits
[SMIAPP_LIMIT_MAX_PLL_MULTIPLIER
],
251 .min_pll_op_freq_hz
= sensor
->limits
[SMIAPP_LIMIT_MIN_PLL_OP_FREQ_HZ
],
252 .max_pll_op_freq_hz
= sensor
->limits
[SMIAPP_LIMIT_MAX_PLL_OP_FREQ_HZ
],
254 .min_op_sys_clk_div
= sensor
->limits
[SMIAPP_LIMIT_MIN_OP_SYS_CLK_DIV
],
255 .max_op_sys_clk_div
= sensor
->limits
[SMIAPP_LIMIT_MAX_OP_SYS_CLK_DIV
],
256 .min_op_pix_clk_div
= sensor
->limits
[SMIAPP_LIMIT_MIN_OP_PIX_CLK_DIV
],
257 .max_op_pix_clk_div
= sensor
->limits
[SMIAPP_LIMIT_MAX_OP_PIX_CLK_DIV
],
258 .min_op_sys_clk_freq_hz
= sensor
->limits
[SMIAPP_LIMIT_MIN_OP_SYS_CLK_FREQ_HZ
],
259 .max_op_sys_clk_freq_hz
= sensor
->limits
[SMIAPP_LIMIT_MAX_OP_SYS_CLK_FREQ_HZ
],
260 .min_op_pix_clk_freq_hz
= sensor
->limits
[SMIAPP_LIMIT_MIN_OP_PIX_CLK_FREQ_HZ
],
261 .max_op_pix_clk_freq_hz
= sensor
->limits
[SMIAPP_LIMIT_MAX_OP_PIX_CLK_FREQ_HZ
],
263 .min_vt_sys_clk_div
= sensor
->limits
[SMIAPP_LIMIT_MIN_VT_SYS_CLK_DIV
],
264 .max_vt_sys_clk_div
= sensor
->limits
[SMIAPP_LIMIT_MAX_VT_SYS_CLK_DIV
],
265 .min_vt_pix_clk_div
= sensor
->limits
[SMIAPP_LIMIT_MIN_VT_PIX_CLK_DIV
],
266 .max_vt_pix_clk_div
= sensor
->limits
[SMIAPP_LIMIT_MAX_VT_PIX_CLK_DIV
],
267 .min_vt_sys_clk_freq_hz
= sensor
->limits
[SMIAPP_LIMIT_MIN_VT_SYS_CLK_FREQ_HZ
],
268 .max_vt_sys_clk_freq_hz
= sensor
->limits
[SMIAPP_LIMIT_MAX_VT_SYS_CLK_FREQ_HZ
],
269 .min_vt_pix_clk_freq_hz
= sensor
->limits
[SMIAPP_LIMIT_MIN_VT_PIX_CLK_FREQ_HZ
],
270 .max_vt_pix_clk_freq_hz
= sensor
->limits
[SMIAPP_LIMIT_MAX_VT_PIX_CLK_FREQ_HZ
],
272 .min_line_length_pck_bin
= sensor
->limits
[SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK_BIN
],
273 .min_line_length_pck
= sensor
->limits
[SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK
],
275 struct smiapp_pll
*pll
= &sensor
->pll
;
278 memset(&sensor
->pll
, 0, sizeof(sensor
->pll
));
280 pll
->lanes
= sensor
->platform_data
->lanes
;
281 pll
->ext_clk_freq_hz
= sensor
->platform_data
->ext_clk
;
283 if (sensor
->minfo
.smiapp_profile
== SMIAPP_PROFILE_0
) {
285 * Fill in operational clock divisors limits from the
286 * video timing ones. On profile 0 sensors the
287 * requirements regarding them are essentially the
288 * same as on VT ones.
290 lim
.min_op_sys_clk_div
= lim
.min_vt_sys_clk_div
;
291 lim
.max_op_sys_clk_div
= lim
.max_vt_sys_clk_div
;
292 lim
.min_op_pix_clk_div
= lim
.min_vt_pix_clk_div
;
293 lim
.max_op_pix_clk_div
= lim
.max_vt_pix_clk_div
;
294 lim
.min_op_sys_clk_freq_hz
= lim
.min_vt_sys_clk_freq_hz
;
295 lim
.max_op_sys_clk_freq_hz
= lim
.max_vt_sys_clk_freq_hz
;
296 lim
.min_op_pix_clk_freq_hz
= lim
.min_vt_pix_clk_freq_hz
;
297 lim
.max_op_pix_clk_freq_hz
= lim
.max_vt_pix_clk_freq_hz
;
298 /* Profile 0 sensors have no separate OP clock branch. */
299 pll
->flags
|= SMIAPP_PLL_FLAG_NO_OP_CLOCKS
;
302 if (smiapp_needs_quirk(sensor
,
303 SMIAPP_QUIRK_FLAG_OP_PIX_CLOCK_PER_LANE
))
304 pll
->flags
|= SMIAPP_PLL_FLAG_OP_PIX_CLOCK_PER_LANE
;
306 pll
->binning_horizontal
= sensor
->binning_horizontal
;
307 pll
->binning_vertical
= sensor
->binning_vertical
;
309 sensor
->link_freq
->qmenu_int
[sensor
->link_freq
->val
];
310 pll
->scale_m
= sensor
->scale_m
;
311 pll
->scale_n
= sensor
->limits
[SMIAPP_LIMIT_SCALER_N_MIN
];
312 pll
->bits_per_pixel
= sensor
->csi_format
->compressed
;
314 rval
= smiapp_pll_calculate(&client
->dev
, &lim
, pll
);
318 sensor
->pixel_rate_parray
->cur
.val64
= pll
->vt_pix_clk_freq_hz
;
319 sensor
->pixel_rate_csi
->cur
.val64
= pll
->pixel_rate_csi
;
327 * V4L2 Controls handling
331 static void __smiapp_update_exposure_limits(struct smiapp_sensor
*sensor
)
333 struct v4l2_ctrl
*ctrl
= sensor
->exposure
;
336 max
= sensor
->pixel_array
->crop
[SMIAPP_PA_PAD_SRC
].height
337 + sensor
->vblank
->val
338 - sensor
->limits
[SMIAPP_LIMIT_COARSE_INTEGRATION_TIME_MAX_MARGIN
];
341 if (ctrl
->default_value
> max
)
342 ctrl
->default_value
= max
;
345 if (ctrl
->cur
.val
> max
)
352 * 1. Bits-per-pixel, descending.
353 * 2. Bits-per-pixel compressed, descending.
354 * 3. Pixel order, same as in pixel_order_str. Formats for all four pixel
355 * orders must be defined.
357 static const struct smiapp_csi_data_format smiapp_csi_data_formats
[] = {
358 { V4L2_MBUS_FMT_SGRBG12_1X12
, 12, 12, SMIAPP_PIXEL_ORDER_GRBG
, },
359 { V4L2_MBUS_FMT_SRGGB12_1X12
, 12, 12, SMIAPP_PIXEL_ORDER_RGGB
, },
360 { V4L2_MBUS_FMT_SBGGR12_1X12
, 12, 12, SMIAPP_PIXEL_ORDER_BGGR
, },
361 { V4L2_MBUS_FMT_SGBRG12_1X12
, 12, 12, SMIAPP_PIXEL_ORDER_GBRG
, },
362 { V4L2_MBUS_FMT_SGRBG10_1X10
, 10, 10, SMIAPP_PIXEL_ORDER_GRBG
, },
363 { V4L2_MBUS_FMT_SRGGB10_1X10
, 10, 10, SMIAPP_PIXEL_ORDER_RGGB
, },
364 { V4L2_MBUS_FMT_SBGGR10_1X10
, 10, 10, SMIAPP_PIXEL_ORDER_BGGR
, },
365 { V4L2_MBUS_FMT_SGBRG10_1X10
, 10, 10, SMIAPP_PIXEL_ORDER_GBRG
, },
366 { V4L2_MBUS_FMT_SGRBG10_DPCM8_1X8
, 10, 8, SMIAPP_PIXEL_ORDER_GRBG
, },
367 { V4L2_MBUS_FMT_SRGGB10_DPCM8_1X8
, 10, 8, SMIAPP_PIXEL_ORDER_RGGB
, },
368 { V4L2_MBUS_FMT_SBGGR10_DPCM8_1X8
, 10, 8, SMIAPP_PIXEL_ORDER_BGGR
, },
369 { V4L2_MBUS_FMT_SGBRG10_DPCM8_1X8
, 10, 8, SMIAPP_PIXEL_ORDER_GBRG
, },
370 { V4L2_MBUS_FMT_SGRBG8_1X8
, 8, 8, SMIAPP_PIXEL_ORDER_GRBG
, },
371 { V4L2_MBUS_FMT_SRGGB8_1X8
, 8, 8, SMIAPP_PIXEL_ORDER_RGGB
, },
372 { V4L2_MBUS_FMT_SBGGR8_1X8
, 8, 8, SMIAPP_PIXEL_ORDER_BGGR
, },
373 { V4L2_MBUS_FMT_SGBRG8_1X8
, 8, 8, SMIAPP_PIXEL_ORDER_GBRG
, },
376 const char *pixel_order_str
[] = { "GRBG", "RGGB", "BGGR", "GBRG" };
378 #define to_csi_format_idx(fmt) (((unsigned long)(fmt) \
379 - (unsigned long)smiapp_csi_data_formats) \
380 / sizeof(*smiapp_csi_data_formats))
382 static u32
smiapp_pixel_order(struct smiapp_sensor
*sensor
)
384 struct i2c_client
*client
= v4l2_get_subdevdata(&sensor
->src
->sd
);
388 if (sensor
->hflip
->val
)
389 flip
|= SMIAPP_IMAGE_ORIENTATION_HFLIP
;
391 if (sensor
->vflip
->val
)
392 flip
|= SMIAPP_IMAGE_ORIENTATION_VFLIP
;
395 flip
^= sensor
->hvflip_inv_mask
;
397 dev_dbg(&client
->dev
, "flip %d\n", flip
);
398 return sensor
->default_pixel_order
^ flip
;
401 static void smiapp_update_mbus_formats(struct smiapp_sensor
*sensor
)
403 struct i2c_client
*client
= v4l2_get_subdevdata(&sensor
->src
->sd
);
404 unsigned int csi_format_idx
=
405 to_csi_format_idx(sensor
->csi_format
) & ~3;
406 unsigned int internal_csi_format_idx
=
407 to_csi_format_idx(sensor
->internal_csi_format
) & ~3;
408 unsigned int pixel_order
= smiapp_pixel_order(sensor
);
410 sensor
->mbus_frame_fmts
=
411 sensor
->default_mbus_frame_fmts
<< pixel_order
;
413 &smiapp_csi_data_formats
[csi_format_idx
+ pixel_order
];
414 sensor
->internal_csi_format
=
415 &smiapp_csi_data_formats
[internal_csi_format_idx
418 BUG_ON(max(internal_csi_format_idx
, csi_format_idx
) + pixel_order
419 >= ARRAY_SIZE(smiapp_csi_data_formats
));
420 BUG_ON(min(internal_csi_format_idx
, csi_format_idx
) < 0);
422 dev_dbg(&client
->dev
, "new pixel order %s\n",
423 pixel_order_str
[pixel_order
]);
426 static int smiapp_set_ctrl(struct v4l2_ctrl
*ctrl
)
428 struct smiapp_sensor
*sensor
=
429 container_of(ctrl
->handler
, struct smiapp_subdev
, ctrl_handler
)
436 case V4L2_CID_ANALOGUE_GAIN
:
439 SMIAPP_REG_U16_ANALOGUE_GAIN_CODE_GLOBAL
, ctrl
->val
);
441 case V4L2_CID_EXPOSURE
:
444 SMIAPP_REG_U16_COARSE_INTEGRATION_TIME
, ctrl
->val
);
448 if (sensor
->streaming
)
451 if (sensor
->hflip
->val
)
452 orient
|= SMIAPP_IMAGE_ORIENTATION_HFLIP
;
454 if (sensor
->vflip
->val
)
455 orient
|= SMIAPP_IMAGE_ORIENTATION_VFLIP
;
457 orient
^= sensor
->hvflip_inv_mask
;
458 rval
= smiapp_write(sensor
,
459 SMIAPP_REG_U8_IMAGE_ORIENTATION
,
464 smiapp_update_mbus_formats(sensor
);
468 case V4L2_CID_VBLANK
:
469 exposure
= sensor
->exposure
->val
;
471 __smiapp_update_exposure_limits(sensor
);
473 if (exposure
> sensor
->exposure
->maximum
) {
474 sensor
->exposure
->val
=
475 sensor
->exposure
->maximum
;
476 rval
= smiapp_set_ctrl(
483 sensor
, SMIAPP_REG_U16_FRAME_LENGTH_LINES
,
484 sensor
->pixel_array
->crop
[SMIAPP_PA_PAD_SRC
].height
487 case V4L2_CID_HBLANK
:
489 sensor
, SMIAPP_REG_U16_LINE_LENGTH_PCK
,
490 sensor
->pixel_array
->crop
[SMIAPP_PA_PAD_SRC
].width
493 case V4L2_CID_LINK_FREQ
:
494 if (sensor
->streaming
)
497 return smiapp_pll_update(sensor
);
504 static const struct v4l2_ctrl_ops smiapp_ctrl_ops
= {
505 .s_ctrl
= smiapp_set_ctrl
,
508 static int smiapp_init_controls(struct smiapp_sensor
*sensor
)
510 struct i2c_client
*client
= v4l2_get_subdevdata(&sensor
->src
->sd
);
514 rval
= v4l2_ctrl_handler_init(&sensor
->pixel_array
->ctrl_handler
, 7);
517 sensor
->pixel_array
->ctrl_handler
.lock
= &sensor
->mutex
;
519 sensor
->analog_gain
= v4l2_ctrl_new_std(
520 &sensor
->pixel_array
->ctrl_handler
, &smiapp_ctrl_ops
,
521 V4L2_CID_ANALOGUE_GAIN
,
522 sensor
->limits
[SMIAPP_LIMIT_ANALOGUE_GAIN_CODE_MIN
],
523 sensor
->limits
[SMIAPP_LIMIT_ANALOGUE_GAIN_CODE_MAX
],
524 max(sensor
->limits
[SMIAPP_LIMIT_ANALOGUE_GAIN_CODE_STEP
], 1U),
525 sensor
->limits
[SMIAPP_LIMIT_ANALOGUE_GAIN_CODE_MIN
]);
527 /* Exposure limits will be updated soon, use just something here. */
528 sensor
->exposure
= v4l2_ctrl_new_std(
529 &sensor
->pixel_array
->ctrl_handler
, &smiapp_ctrl_ops
,
530 V4L2_CID_EXPOSURE
, 0, 0, 1, 0);
532 sensor
->hflip
= v4l2_ctrl_new_std(
533 &sensor
->pixel_array
->ctrl_handler
, &smiapp_ctrl_ops
,
534 V4L2_CID_HFLIP
, 0, 1, 1, 0);
535 sensor
->vflip
= v4l2_ctrl_new_std(
536 &sensor
->pixel_array
->ctrl_handler
, &smiapp_ctrl_ops
,
537 V4L2_CID_VFLIP
, 0, 1, 1, 0);
539 sensor
->vblank
= v4l2_ctrl_new_std(
540 &sensor
->pixel_array
->ctrl_handler
, &smiapp_ctrl_ops
,
541 V4L2_CID_VBLANK
, 0, 1, 1, 0);
544 sensor
->vblank
->flags
|= V4L2_CTRL_FLAG_UPDATE
;
546 sensor
->hblank
= v4l2_ctrl_new_std(
547 &sensor
->pixel_array
->ctrl_handler
, &smiapp_ctrl_ops
,
548 V4L2_CID_HBLANK
, 0, 1, 1, 0);
551 sensor
->hblank
->flags
|= V4L2_CTRL_FLAG_UPDATE
;
553 sensor
->pixel_rate_parray
= v4l2_ctrl_new_std(
554 &sensor
->pixel_array
->ctrl_handler
, &smiapp_ctrl_ops
,
555 V4L2_CID_PIXEL_RATE
, 0, 0, 1, 0);
557 if (sensor
->pixel_array
->ctrl_handler
.error
) {
558 dev_err(&client
->dev
,
559 "pixel array controls initialization failed (%d)\n",
560 sensor
->pixel_array
->ctrl_handler
.error
);
561 rval
= sensor
->pixel_array
->ctrl_handler
.error
;
565 sensor
->pixel_array
->sd
.ctrl_handler
=
566 &sensor
->pixel_array
->ctrl_handler
;
568 v4l2_ctrl_cluster(2, &sensor
->hflip
);
570 rval
= v4l2_ctrl_handler_init(&sensor
->src
->ctrl_handler
, 0);
573 sensor
->src
->ctrl_handler
.lock
= &sensor
->mutex
;
575 for (max
= 0; sensor
->platform_data
->op_sys_clock
[max
+ 1]; max
++);
577 sensor
->link_freq
= v4l2_ctrl_new_int_menu(
578 &sensor
->src
->ctrl_handler
, &smiapp_ctrl_ops
,
579 V4L2_CID_LINK_FREQ
, max
, 0,
580 sensor
->platform_data
->op_sys_clock
);
582 sensor
->pixel_rate_csi
= v4l2_ctrl_new_std(
583 &sensor
->src
->ctrl_handler
, &smiapp_ctrl_ops
,
584 V4L2_CID_PIXEL_RATE
, 0, 0, 1, 0);
586 if (sensor
->src
->ctrl_handler
.error
) {
587 dev_err(&client
->dev
,
588 "src controls initialization failed (%d)\n",
589 sensor
->src
->ctrl_handler
.error
);
590 rval
= sensor
->src
->ctrl_handler
.error
;
594 sensor
->src
->sd
.ctrl_handler
=
595 &sensor
->src
->ctrl_handler
;
600 v4l2_ctrl_handler_free(&sensor
->pixel_array
->ctrl_handler
);
601 v4l2_ctrl_handler_free(&sensor
->src
->ctrl_handler
);
606 static void smiapp_free_controls(struct smiapp_sensor
*sensor
)
610 for (i
= 0; i
< sensor
->ssds_used
; i
++)
611 v4l2_ctrl_handler_free(&sensor
->ssds
[i
].ctrl_handler
);
614 static int smiapp_get_limits(struct smiapp_sensor
*sensor
, int const *limit
,
617 struct i2c_client
*client
= v4l2_get_subdevdata(&sensor
->src
->sd
);
622 for (i
= 0; i
< n
; i
++) {
624 sensor
, smiapp_reg_limits
[limit
[i
]].addr
, &val
);
627 sensor
->limits
[limit
[i
]] = val
;
628 dev_dbg(&client
->dev
, "0x%8.8x \"%s\" = %d, 0x%x\n",
629 smiapp_reg_limits
[limit
[i
]].addr
,
630 smiapp_reg_limits
[limit
[i
]].what
, val
, val
);
636 static int smiapp_get_all_limits(struct smiapp_sensor
*sensor
)
641 for (i
= 0; i
< SMIAPP_LIMIT_LAST
; i
++) {
642 rval
= smiapp_get_limits(sensor
, &i
, 1);
647 if (sensor
->limits
[SMIAPP_LIMIT_SCALER_N_MIN
] == 0)
648 smiapp_replace_limit(sensor
, SMIAPP_LIMIT_SCALER_N_MIN
, 16);
653 static int smiapp_get_limits_binning(struct smiapp_sensor
*sensor
)
655 struct i2c_client
*client
= v4l2_get_subdevdata(&sensor
->src
->sd
);
656 static u32
const limits
[] = {
657 SMIAPP_LIMIT_MIN_FRAME_LENGTH_LINES_BIN
,
658 SMIAPP_LIMIT_MAX_FRAME_LENGTH_LINES_BIN
,
659 SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK_BIN
,
660 SMIAPP_LIMIT_MAX_LINE_LENGTH_PCK_BIN
,
661 SMIAPP_LIMIT_MIN_LINE_BLANKING_PCK_BIN
,
662 SMIAPP_LIMIT_FINE_INTEGRATION_TIME_MIN_BIN
,
663 SMIAPP_LIMIT_FINE_INTEGRATION_TIME_MAX_MARGIN_BIN
,
665 static u32
const limits_replace
[] = {
666 SMIAPP_LIMIT_MIN_FRAME_LENGTH_LINES
,
667 SMIAPP_LIMIT_MAX_FRAME_LENGTH_LINES
,
668 SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK
,
669 SMIAPP_LIMIT_MAX_LINE_LENGTH_PCK
,
670 SMIAPP_LIMIT_MIN_LINE_BLANKING_PCK
,
671 SMIAPP_LIMIT_FINE_INTEGRATION_TIME_MIN
,
672 SMIAPP_LIMIT_FINE_INTEGRATION_TIME_MAX_MARGIN
,
677 if (sensor
->limits
[SMIAPP_LIMIT_BINNING_CAPABILITY
] ==
678 SMIAPP_BINNING_CAPABILITY_NO
) {
679 for (i
= 0; i
< ARRAY_SIZE(limits
); i
++)
680 sensor
->limits
[limits
[i
]] =
681 sensor
->limits
[limits_replace
[i
]];
686 rval
= smiapp_get_limits(sensor
, limits
, ARRAY_SIZE(limits
));
691 * Sanity check whether the binning limits are valid. If not,
692 * use the non-binning ones.
694 if (sensor
->limits
[SMIAPP_LIMIT_MIN_FRAME_LENGTH_LINES_BIN
]
695 && sensor
->limits
[SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK_BIN
]
696 && sensor
->limits
[SMIAPP_LIMIT_MIN_LINE_BLANKING_PCK_BIN
])
699 for (i
= 0; i
< ARRAY_SIZE(limits
); i
++) {
700 dev_dbg(&client
->dev
,
701 "replace limit 0x%8.8x \"%s\" = %d, 0x%x\n",
702 smiapp_reg_limits
[limits
[i
]].addr
,
703 smiapp_reg_limits
[limits
[i
]].what
,
704 sensor
->limits
[limits_replace
[i
]],
705 sensor
->limits
[limits_replace
[i
]]);
706 sensor
->limits
[limits
[i
]] =
707 sensor
->limits
[limits_replace
[i
]];
713 static int smiapp_get_mbus_formats(struct smiapp_sensor
*sensor
)
715 struct i2c_client
*client
= v4l2_get_subdevdata(&sensor
->src
->sd
);
716 unsigned int type
, n
;
717 unsigned int i
, pixel_order
;
721 sensor
, SMIAPP_REG_U8_DATA_FORMAT_MODEL_TYPE
, &type
);
725 dev_dbg(&client
->dev
, "data_format_model_type %d\n", type
);
727 rval
= smiapp_read(sensor
, SMIAPP_REG_U8_PIXEL_ORDER
,
732 if (pixel_order
>= ARRAY_SIZE(pixel_order_str
)) {
733 dev_dbg(&client
->dev
, "bad pixel order %d\n", pixel_order
);
737 dev_dbg(&client
->dev
, "pixel order %d (%s)\n", pixel_order
,
738 pixel_order_str
[pixel_order
]);
741 case SMIAPP_DATA_FORMAT_MODEL_TYPE_NORMAL
:
742 n
= SMIAPP_DATA_FORMAT_MODEL_TYPE_NORMAL_N
;
744 case SMIAPP_DATA_FORMAT_MODEL_TYPE_EXTENDED
:
745 n
= SMIAPP_DATA_FORMAT_MODEL_TYPE_EXTENDED_N
;
751 sensor
->default_pixel_order
= pixel_order
;
752 sensor
->mbus_frame_fmts
= 0;
754 for (i
= 0; i
< n
; i
++) {
759 SMIAPP_REG_U16_DATA_FORMAT_DESCRIPTOR(i
), &fmt
);
763 dev_dbg(&client
->dev
, "bpp %d, compressed %d\n",
766 for (j
= 0; j
< ARRAY_SIZE(smiapp_csi_data_formats
); j
++) {
767 const struct smiapp_csi_data_format
*f
=
768 &smiapp_csi_data_formats
[j
];
770 if (f
->pixel_order
!= SMIAPP_PIXEL_ORDER_GRBG
)
773 if (f
->width
!= fmt
>> 8 || f
->compressed
!= (u8
)fmt
)
776 dev_dbg(&client
->dev
, "jolly good! %d\n", j
);
778 sensor
->default_mbus_frame_fmts
|= 1 << j
;
779 if (!sensor
->csi_format
) {
780 sensor
->csi_format
= f
;
781 sensor
->internal_csi_format
= f
;
786 if (!sensor
->csi_format
) {
787 dev_err(&client
->dev
, "no supported mbus code found\n");
791 smiapp_update_mbus_formats(sensor
);
796 static void smiapp_update_blanking(struct smiapp_sensor
*sensor
)
798 struct v4l2_ctrl
*vblank
= sensor
->vblank
;
799 struct v4l2_ctrl
*hblank
= sensor
->hblank
;
803 sensor
->limits
[SMIAPP_LIMIT_MIN_FRAME_BLANKING_LINES
],
804 sensor
->limits
[SMIAPP_LIMIT_MIN_FRAME_LENGTH_LINES_BIN
] -
805 sensor
->pixel_array
->crop
[SMIAPP_PA_PAD_SRC
].height
);
807 sensor
->limits
[SMIAPP_LIMIT_MAX_FRAME_LENGTH_LINES_BIN
] -
808 sensor
->pixel_array
->crop
[SMIAPP_PA_PAD_SRC
].height
;
810 vblank
->val
= clamp_t(int, vblank
->val
,
811 vblank
->minimum
, vblank
->maximum
);
812 vblank
->default_value
= vblank
->minimum
;
813 vblank
->val
= vblank
->val
;
814 vblank
->cur
.val
= vblank
->val
;
818 sensor
->limits
[SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK_BIN
] -
819 sensor
->pixel_array
->crop
[SMIAPP_PA_PAD_SRC
].width
,
820 sensor
->limits
[SMIAPP_LIMIT_MIN_LINE_BLANKING_PCK_BIN
]);
822 sensor
->limits
[SMIAPP_LIMIT_MAX_LINE_LENGTH_PCK_BIN
] -
823 sensor
->pixel_array
->crop
[SMIAPP_PA_PAD_SRC
].width
;
825 hblank
->val
= clamp_t(int, hblank
->val
,
826 hblank
->minimum
, hblank
->maximum
);
827 hblank
->default_value
= hblank
->minimum
;
828 hblank
->val
= hblank
->val
;
829 hblank
->cur
.val
= hblank
->val
;
831 __smiapp_update_exposure_limits(sensor
);
834 static int smiapp_update_mode(struct smiapp_sensor
*sensor
)
836 struct i2c_client
*client
= v4l2_get_subdevdata(&sensor
->src
->sd
);
837 unsigned int binning_mode
;
840 dev_dbg(&client
->dev
, "frame size: %dx%d\n",
841 sensor
->src
->crop
[SMIAPP_PAD_SRC
].width
,
842 sensor
->src
->crop
[SMIAPP_PAD_SRC
].height
);
843 dev_dbg(&client
->dev
, "csi format width: %d\n",
844 sensor
->csi_format
->width
);
846 /* Binning has to be set up here; it affects limits */
847 if (sensor
->binning_horizontal
== 1 &&
848 sensor
->binning_vertical
== 1) {
852 (sensor
->binning_horizontal
<< 4)
853 | sensor
->binning_vertical
;
856 sensor
, SMIAPP_REG_U8_BINNING_TYPE
, binning_type
);
862 rval
= smiapp_write(sensor
, SMIAPP_REG_U8_BINNING_MODE
, binning_mode
);
866 /* Get updated limits due to binning */
867 rval
= smiapp_get_limits_binning(sensor
);
871 rval
= smiapp_pll_update(sensor
);
875 /* Output from pixel array, including blanking */
876 smiapp_update_blanking(sensor
);
878 dev_dbg(&client
->dev
, "vblank\t\t%d\n", sensor
->vblank
->val
);
879 dev_dbg(&client
->dev
, "hblank\t\t%d\n", sensor
->hblank
->val
);
881 dev_dbg(&client
->dev
, "real timeperframe\t100/%d\n",
882 sensor
->pll
.vt_pix_clk_freq_hz
/
883 ((sensor
->pixel_array
->crop
[SMIAPP_PA_PAD_SRC
].width
884 + sensor
->hblank
->val
) *
885 (sensor
->pixel_array
->crop
[SMIAPP_PA_PAD_SRC
].height
886 + sensor
->vblank
->val
) / 100));
893 * SMIA++ NVM handling
896 static int smiapp_read_nvm(struct smiapp_sensor
*sensor
,
902 np
= sensor
->nvm_size
/ SMIAPP_NVM_PAGE_SIZE
;
903 for (p
= 0; p
< np
; p
++) {
906 SMIAPP_REG_U8_DATA_TRANSFER_IF_1_PAGE_SELECT
, p
);
910 rval
= smiapp_write(sensor
,
911 SMIAPP_REG_U8_DATA_TRANSFER_IF_1_CTRL
,
912 SMIAPP_DATA_TRANSFER_IF_1_CTRL_EN
|
913 SMIAPP_DATA_TRANSFER_IF_1_CTRL_RD_EN
);
917 for (i
= 0; i
< 1000; i
++) {
920 SMIAPP_REG_U8_DATA_TRANSFER_IF_1_STATUS
, &s
);
925 if (s
& SMIAPP_DATA_TRANSFER_IF_1_STATUS_RD_READY
)
935 for (i
= 0; i
< SMIAPP_NVM_PAGE_SIZE
; i
++) {
938 SMIAPP_REG_U8_DATA_TRANSFER_IF_1_DATA_0
+ i
,
948 rval2
= smiapp_write(sensor
, SMIAPP_REG_U8_DATA_TRANSFER_IF_1_CTRL
, 0);
957 * SMIA++ CCI address control
960 static int smiapp_change_cci_addr(struct smiapp_sensor
*sensor
)
962 struct i2c_client
*client
= v4l2_get_subdevdata(&sensor
->src
->sd
);
966 client
->addr
= sensor
->platform_data
->i2c_addr_dfl
;
968 rval
= smiapp_write(sensor
,
969 SMIAPP_REG_U8_CCI_ADDRESS_CONTROL
,
970 sensor
->platform_data
->i2c_addr_alt
<< 1);
974 client
->addr
= sensor
->platform_data
->i2c_addr_alt
;
976 /* verify addr change went ok */
977 rval
= smiapp_read(sensor
, SMIAPP_REG_U8_CCI_ADDRESS_CONTROL
, &val
);
981 if (val
!= sensor
->platform_data
->i2c_addr_alt
<< 1)
989 * SMIA++ Mode Control
992 static int smiapp_setup_flash_strobe(struct smiapp_sensor
*sensor
)
994 struct smiapp_flash_strobe_parms
*strobe_setup
;
995 unsigned int ext_freq
= sensor
->platform_data
->ext_clk
;
997 u32 strobe_adjustment
;
998 u32 strobe_width_high_rs
;
1001 strobe_setup
= sensor
->platform_data
->strobe_setup
;
1004 * How to calculate registers related to strobe length. Please
1005 * do not change, or if you do at least know what you're
1008 * Sakari Ailus <sakari.ailus@maxwell.research.nokia.com> 2010-10-25
1010 * flash_strobe_length [us] / 10^6 = (tFlash_strobe_width_ctrl
1011 * / EXTCLK freq [Hz]) * flash_strobe_adjustment
1013 * tFlash_strobe_width_ctrl E N, [1 - 0xffff]
1014 * flash_strobe_adjustment E N, [1 - 0xff]
1016 * The formula above is written as below to keep it on one
1019 * l / 10^6 = w / e * a
1021 * Let's mark w * a by x:
1029 * The strobe width must be at least as long as requested,
1030 * thus rounding upwards is needed.
1032 * x = (l * e + 10^6 - 1) / 10^6
1033 * -----------------------------
1035 * Maximum possible accuracy is wanted at all times. Thus keep
1036 * a as small as possible.
1038 * Calculate a, assuming maximum w, with rounding upwards:
1040 * a = (x + (2^16 - 1) - 1) / (2^16 - 1)
1041 * -------------------------------------
1043 * Thus, we also get w, with that a, with rounding upwards:
1045 * w = (x + a - 1) / a
1046 * -------------------
1050 * x E [1, (2^16 - 1) * (2^8 - 1)]
1052 * Substituting maximum x to the original formula (with rounding),
1053 * the maximum l is thus
1055 * (2^16 - 1) * (2^8 - 1) * 10^6 = l * e + 10^6 - 1
1057 * l = (10^6 * (2^16 - 1) * (2^8 - 1) - 10^6 + 1) / e
1058 * --------------------------------------------------
1060 * flash_strobe_length must be clamped between 1 and
1061 * (10^6 * (2^16 - 1) * (2^8 - 1) - 10^6 + 1) / EXTCLK freq.
1065 * flash_strobe_adjustment = ((flash_strobe_length *
1066 * EXTCLK freq + 10^6 - 1) / 10^6 + (2^16 - 1) - 1) / (2^16 - 1)
1068 * tFlash_strobe_width_ctrl = ((flash_strobe_length *
1069 * EXTCLK freq + 10^6 - 1) / 10^6 +
1070 * flash_strobe_adjustment - 1) / flash_strobe_adjustment
1072 tmp
= div_u64(1000000ULL * ((1 << 16) - 1) * ((1 << 8) - 1) -
1073 1000000 + 1, ext_freq
);
1074 strobe_setup
->strobe_width_high_us
=
1075 clamp_t(u32
, strobe_setup
->strobe_width_high_us
, 1, tmp
);
1077 tmp
= div_u64(((u64
)strobe_setup
->strobe_width_high_us
* (u64
)ext_freq
+
1078 1000000 - 1), 1000000ULL);
1079 strobe_adjustment
= (tmp
+ (1 << 16) - 1 - 1) / ((1 << 16) - 1);
1080 strobe_width_high_rs
= (tmp
+ strobe_adjustment
- 1) /
1083 rval
= smiapp_write(sensor
, SMIAPP_REG_U8_FLASH_MODE_RS
,
1084 strobe_setup
->mode
);
1088 rval
= smiapp_write(sensor
, SMIAPP_REG_U8_FLASH_STROBE_ADJUSTMENT
,
1093 rval
= smiapp_write(
1094 sensor
, SMIAPP_REG_U16_TFLASH_STROBE_WIDTH_HIGH_RS_CTRL
,
1095 strobe_width_high_rs
);
1099 rval
= smiapp_write(sensor
, SMIAPP_REG_U16_TFLASH_STROBE_DELAY_RS_CTRL
,
1100 strobe_setup
->strobe_delay
);
1104 rval
= smiapp_write(sensor
, SMIAPP_REG_U16_FLASH_STROBE_START_POINT
,
1105 strobe_setup
->stobe_start_point
);
1109 rval
= smiapp_write(sensor
, SMIAPP_REG_U8_FLASH_TRIGGER_RS
,
1110 strobe_setup
->trigger
);
1113 sensor
->platform_data
->strobe_setup
->trigger
= 0;
1118 /* -----------------------------------------------------------------------------
1122 static int smiapp_power_on(struct smiapp_sensor
*sensor
)
1124 struct i2c_client
*client
= v4l2_get_subdevdata(&sensor
->src
->sd
);
1128 rval
= regulator_enable(sensor
->vana
);
1130 dev_err(&client
->dev
, "failed to enable vana regulator\n");
1133 usleep_range(1000, 1000);
1135 if (sensor
->platform_data
->set_xclk
)
1136 rval
= sensor
->platform_data
->set_xclk(
1137 &sensor
->src
->sd
, sensor
->platform_data
->ext_clk
);
1139 rval
= clk_enable(sensor
->ext_clk
);
1141 dev_dbg(&client
->dev
, "failed to set xclk\n");
1144 usleep_range(1000, 1000);
1146 if (sensor
->platform_data
->xshutdown
!= SMIAPP_NO_XSHUTDOWN
)
1147 gpio_set_value(sensor
->platform_data
->xshutdown
, 1);
1149 sleep
= SMIAPP_RESET_DELAY(sensor
->platform_data
->ext_clk
);
1150 usleep_range(sleep
, sleep
);
1153 * Failures to respond to the address change command have been noticed.
1154 * Those failures seem to be caused by the sensor requiring a longer
1155 * boot time than advertised. An additional 10ms delay seems to work
1156 * around the issue, but the SMIA++ I2C write retry hack makes the delay
1157 * unnecessary. The failures need to be investigated to find a proper
1158 * fix, and a delay will likely need to be added here if the I2C write
1159 * retry hack is reverted before the root cause of the boot time issue
1163 if (sensor
->platform_data
->i2c_addr_alt
) {
1164 rval
= smiapp_change_cci_addr(sensor
);
1166 dev_err(&client
->dev
, "cci address change error\n");
1167 goto out_cci_addr_fail
;
1171 rval
= smiapp_write(sensor
, SMIAPP_REG_U8_SOFTWARE_RESET
,
1172 SMIAPP_SOFTWARE_RESET
);
1174 dev_err(&client
->dev
, "software reset failed\n");
1175 goto out_cci_addr_fail
;
1178 if (sensor
->platform_data
->i2c_addr_alt
) {
1179 rval
= smiapp_change_cci_addr(sensor
);
1181 dev_err(&client
->dev
, "cci address change error\n");
1182 goto out_cci_addr_fail
;
1186 rval
= smiapp_write(sensor
, SMIAPP_REG_U16_COMPRESSION_MODE
,
1187 SMIAPP_COMPRESSION_MODE_SIMPLE_PREDICTOR
);
1189 dev_err(&client
->dev
, "compression mode set failed\n");
1190 goto out_cci_addr_fail
;
1193 rval
= smiapp_write(
1194 sensor
, SMIAPP_REG_U16_EXTCLK_FREQUENCY_MHZ
,
1195 sensor
->platform_data
->ext_clk
/ (1000000 / (1 << 8)));
1197 dev_err(&client
->dev
, "extclk frequency set failed\n");
1198 goto out_cci_addr_fail
;
1201 rval
= smiapp_write(sensor
, SMIAPP_REG_U8_CSI_LANE_MODE
,
1202 sensor
->platform_data
->lanes
- 1);
1204 dev_err(&client
->dev
, "csi lane mode set failed\n");
1205 goto out_cci_addr_fail
;
1208 rval
= smiapp_write(sensor
, SMIAPP_REG_U8_FAST_STANDBY_CTRL
,
1209 SMIAPP_FAST_STANDBY_CTRL_IMMEDIATE
);
1211 dev_err(&client
->dev
, "fast standby set failed\n");
1212 goto out_cci_addr_fail
;
1215 rval
= smiapp_write(sensor
, SMIAPP_REG_U8_CSI_SIGNALLING_MODE
,
1216 sensor
->platform_data
->csi_signalling_mode
);
1218 dev_err(&client
->dev
, "csi signalling mode set failed\n");
1219 goto out_cci_addr_fail
;
1222 /* DPHY control done by sensor based on requested link rate */
1223 rval
= smiapp_write(sensor
, SMIAPP_REG_U8_DPHY_CTRL
,
1224 SMIAPP_DPHY_CTRL_UI
);
1228 rval
= smiapp_call_quirk(sensor
, post_poweron
);
1230 dev_err(&client
->dev
, "post_poweron quirks failed\n");
1231 goto out_cci_addr_fail
;
1234 /* Are we still initialising...? If yes, return here. */
1235 if (!sensor
->pixel_array
)
1238 rval
= v4l2_ctrl_handler_setup(
1239 &sensor
->pixel_array
->ctrl_handler
);
1241 goto out_cci_addr_fail
;
1243 rval
= v4l2_ctrl_handler_setup(&sensor
->src
->ctrl_handler
);
1245 goto out_cci_addr_fail
;
1247 mutex_lock(&sensor
->mutex
);
1248 rval
= smiapp_update_mode(sensor
);
1249 mutex_unlock(&sensor
->mutex
);
1251 goto out_cci_addr_fail
;
1256 if (sensor
->platform_data
->xshutdown
!= SMIAPP_NO_XSHUTDOWN
)
1257 gpio_set_value(sensor
->platform_data
->xshutdown
, 0);
1258 if (sensor
->platform_data
->set_xclk
)
1259 sensor
->platform_data
->set_xclk(&sensor
->src
->sd
, 0);
1261 clk_disable(sensor
->ext_clk
);
1264 regulator_disable(sensor
->vana
);
1268 static void smiapp_power_off(struct smiapp_sensor
*sensor
)
1271 * Currently power/clock to lens are enable/disabled separately
1272 * but they are essentially the same signals. So if the sensor is
1273 * powered off while the lens is powered on the sensor does not
1274 * really see a power off and next time the cci address change
1275 * will fail. So do a soft reset explicitly here.
1277 if (sensor
->platform_data
->i2c_addr_alt
)
1278 smiapp_write(sensor
,
1279 SMIAPP_REG_U8_SOFTWARE_RESET
,
1280 SMIAPP_SOFTWARE_RESET
);
1282 if (sensor
->platform_data
->xshutdown
!= SMIAPP_NO_XSHUTDOWN
)
1283 gpio_set_value(sensor
->platform_data
->xshutdown
, 0);
1284 if (sensor
->platform_data
->set_xclk
)
1285 sensor
->platform_data
->set_xclk(&sensor
->src
->sd
, 0);
1287 clk_disable(sensor
->ext_clk
);
1288 usleep_range(5000, 5000);
1289 regulator_disable(sensor
->vana
);
1290 sensor
->streaming
= 0;
1293 static int smiapp_set_power(struct v4l2_subdev
*subdev
, int on
)
1295 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
1298 mutex_lock(&sensor
->power_mutex
);
1301 * If the power count is modified from 0 to != 0 or from != 0
1302 * to 0, update the power state.
1304 if (!sensor
->power_count
== !on
)
1308 /* Power on and perform initialisation. */
1309 ret
= smiapp_power_on(sensor
);
1313 smiapp_power_off(sensor
);
1316 /* Update the power count. */
1317 sensor
->power_count
+= on
? 1 : -1;
1318 WARN_ON(sensor
->power_count
< 0);
1321 mutex_unlock(&sensor
->power_mutex
);
1325 /* -----------------------------------------------------------------------------
1326 * Video stream management
1329 static int smiapp_start_streaming(struct smiapp_sensor
*sensor
)
1331 struct i2c_client
*client
= v4l2_get_subdevdata(&sensor
->src
->sd
);
1334 mutex_lock(&sensor
->mutex
);
1336 rval
= smiapp_write(sensor
, SMIAPP_REG_U16_CSI_DATA_FORMAT
,
1337 (sensor
->csi_format
->width
<< 8) |
1338 sensor
->csi_format
->compressed
);
1342 rval
= smiapp_pll_configure(sensor
);
1346 /* Analog crop start coordinates */
1347 rval
= smiapp_write(sensor
, SMIAPP_REG_U16_X_ADDR_START
,
1348 sensor
->pixel_array
->crop
[SMIAPP_PA_PAD_SRC
].left
);
1352 rval
= smiapp_write(sensor
, SMIAPP_REG_U16_Y_ADDR_START
,
1353 sensor
->pixel_array
->crop
[SMIAPP_PA_PAD_SRC
].top
);
1357 /* Analog crop end coordinates */
1358 rval
= smiapp_write(
1359 sensor
, SMIAPP_REG_U16_X_ADDR_END
,
1360 sensor
->pixel_array
->crop
[SMIAPP_PA_PAD_SRC
].left
1361 + sensor
->pixel_array
->crop
[SMIAPP_PA_PAD_SRC
].width
- 1);
1365 rval
= smiapp_write(
1366 sensor
, SMIAPP_REG_U16_Y_ADDR_END
,
1367 sensor
->pixel_array
->crop
[SMIAPP_PA_PAD_SRC
].top
1368 + sensor
->pixel_array
->crop
[SMIAPP_PA_PAD_SRC
].height
- 1);
1373 * Output from pixel array, including blanking, is set using
1374 * controls below. No need to set here.
1378 if (sensor
->limits
[SMIAPP_LIMIT_DIGITAL_CROP_CAPABILITY
]
1379 == SMIAPP_DIGITAL_CROP_CAPABILITY_INPUT_CROP
) {
1380 rval
= smiapp_write(
1381 sensor
, SMIAPP_REG_U16_DIGITAL_CROP_X_OFFSET
,
1382 sensor
->scaler
->crop
[SMIAPP_PAD_SINK
].left
);
1386 rval
= smiapp_write(
1387 sensor
, SMIAPP_REG_U16_DIGITAL_CROP_Y_OFFSET
,
1388 sensor
->scaler
->crop
[SMIAPP_PAD_SINK
].top
);
1392 rval
= smiapp_write(
1393 sensor
, SMIAPP_REG_U16_DIGITAL_CROP_IMAGE_WIDTH
,
1394 sensor
->scaler
->crop
[SMIAPP_PAD_SINK
].width
);
1398 rval
= smiapp_write(
1399 sensor
, SMIAPP_REG_U16_DIGITAL_CROP_IMAGE_HEIGHT
,
1400 sensor
->scaler
->crop
[SMIAPP_PAD_SINK
].height
);
1406 if (sensor
->limits
[SMIAPP_LIMIT_SCALING_CAPABILITY
]
1407 != SMIAPP_SCALING_CAPABILITY_NONE
) {
1408 rval
= smiapp_write(sensor
, SMIAPP_REG_U16_SCALING_MODE
,
1409 sensor
->scaling_mode
);
1413 rval
= smiapp_write(sensor
, SMIAPP_REG_U16_SCALE_M
,
1419 /* Output size from sensor */
1420 rval
= smiapp_write(sensor
, SMIAPP_REG_U16_X_OUTPUT_SIZE
,
1421 sensor
->src
->crop
[SMIAPP_PAD_SRC
].width
);
1424 rval
= smiapp_write(sensor
, SMIAPP_REG_U16_Y_OUTPUT_SIZE
,
1425 sensor
->src
->crop
[SMIAPP_PAD_SRC
].height
);
1429 if ((sensor
->flash_capability
&
1430 (SMIAPP_FLASH_MODE_CAPABILITY_SINGLE_STROBE
|
1431 SMIAPP_FLASH_MODE_CAPABILITY_MULTIPLE_STROBE
)) &&
1432 sensor
->platform_data
->strobe_setup
!= NULL
&&
1433 sensor
->platform_data
->strobe_setup
->trigger
!= 0) {
1434 rval
= smiapp_setup_flash_strobe(sensor
);
1439 rval
= smiapp_call_quirk(sensor
, pre_streamon
);
1441 dev_err(&client
->dev
, "pre_streamon quirks failed\n");
1445 rval
= smiapp_write(sensor
, SMIAPP_REG_U8_MODE_SELECT
,
1446 SMIAPP_MODE_SELECT_STREAMING
);
1449 mutex_unlock(&sensor
->mutex
);
1454 static int smiapp_stop_streaming(struct smiapp_sensor
*sensor
)
1456 struct i2c_client
*client
= v4l2_get_subdevdata(&sensor
->src
->sd
);
1459 mutex_lock(&sensor
->mutex
);
1460 rval
= smiapp_write(sensor
, SMIAPP_REG_U8_MODE_SELECT
,
1461 SMIAPP_MODE_SELECT_SOFTWARE_STANDBY
);
1465 rval
= smiapp_call_quirk(sensor
, post_streamoff
);
1467 dev_err(&client
->dev
, "post_streamoff quirks failed\n");
1470 mutex_unlock(&sensor
->mutex
);
1474 /* -----------------------------------------------------------------------------
1475 * V4L2 subdev video operations
1478 static int smiapp_set_stream(struct v4l2_subdev
*subdev
, int enable
)
1480 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
1483 if (sensor
->streaming
== enable
)
1487 sensor
->streaming
= 1;
1488 rval
= smiapp_start_streaming(sensor
);
1490 sensor
->streaming
= 0;
1492 rval
= smiapp_stop_streaming(sensor
);
1493 sensor
->streaming
= 0;
1499 static int smiapp_enum_mbus_code(struct v4l2_subdev
*subdev
,
1500 struct v4l2_subdev_fh
*fh
,
1501 struct v4l2_subdev_mbus_code_enum
*code
)
1503 struct i2c_client
*client
= v4l2_get_subdevdata(subdev
);
1504 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
1509 mutex_lock(&sensor
->mutex
);
1511 dev_err(&client
->dev
, "subdev %s, pad %d, index %d\n",
1512 subdev
->name
, code
->pad
, code
->index
);
1514 if (subdev
!= &sensor
->src
->sd
|| code
->pad
!= SMIAPP_PAD_SRC
) {
1518 code
->code
= sensor
->internal_csi_format
->code
;
1523 for (i
= 0; i
< ARRAY_SIZE(smiapp_csi_data_formats
); i
++) {
1524 if (sensor
->mbus_frame_fmts
& (1 << i
))
1527 if (idx
== code
->index
) {
1528 code
->code
= smiapp_csi_data_formats
[i
].code
;
1529 dev_err(&client
->dev
, "found index %d, i %d, code %x\n",
1530 code
->index
, i
, code
->code
);
1537 mutex_unlock(&sensor
->mutex
);
1542 static u32
__smiapp_get_mbus_code(struct v4l2_subdev
*subdev
,
1545 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
1547 if (subdev
== &sensor
->src
->sd
&& pad
== SMIAPP_PAD_SRC
)
1548 return sensor
->csi_format
->code
;
1550 return sensor
->internal_csi_format
->code
;
1553 static int __smiapp_get_format(struct v4l2_subdev
*subdev
,
1554 struct v4l2_subdev_fh
*fh
,
1555 struct v4l2_subdev_format
*fmt
)
1557 struct smiapp_subdev
*ssd
= to_smiapp_subdev(subdev
);
1559 if (fmt
->which
== V4L2_SUBDEV_FORMAT_TRY
) {
1560 fmt
->format
= *v4l2_subdev_get_try_format(fh
, fmt
->pad
);
1562 struct v4l2_rect
*r
;
1564 if (fmt
->pad
== ssd
->source_pad
)
1565 r
= &ssd
->crop
[ssd
->source_pad
];
1569 fmt
->format
.code
= __smiapp_get_mbus_code(subdev
, fmt
->pad
);
1570 fmt
->format
.width
= r
->width
;
1571 fmt
->format
.height
= r
->height
;
1577 static int smiapp_get_format(struct v4l2_subdev
*subdev
,
1578 struct v4l2_subdev_fh
*fh
,
1579 struct v4l2_subdev_format
*fmt
)
1581 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
1584 mutex_lock(&sensor
->mutex
);
1585 rval
= __smiapp_get_format(subdev
, fh
, fmt
);
1586 mutex_unlock(&sensor
->mutex
);
1591 static void smiapp_get_crop_compose(struct v4l2_subdev
*subdev
,
1592 struct v4l2_subdev_fh
*fh
,
1593 struct v4l2_rect
**crops
,
1594 struct v4l2_rect
**comps
, int which
)
1596 struct smiapp_subdev
*ssd
= to_smiapp_subdev(subdev
);
1599 if (which
== V4L2_SUBDEV_FORMAT_ACTIVE
) {
1601 for (i
= 0; i
< subdev
->entity
.num_pads
; i
++)
1602 crops
[i
] = &ssd
->crop
[i
];
1604 *comps
= &ssd
->compose
;
1607 for (i
= 0; i
< subdev
->entity
.num_pads
; i
++) {
1608 crops
[i
] = v4l2_subdev_get_try_crop(fh
, i
);
1613 *comps
= v4l2_subdev_get_try_compose(fh
,
1620 /* Changes require propagation only on sink pad. */
1621 static void smiapp_propagate(struct v4l2_subdev
*subdev
,
1622 struct v4l2_subdev_fh
*fh
, int which
,
1625 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
1626 struct smiapp_subdev
*ssd
= to_smiapp_subdev(subdev
);
1627 struct v4l2_rect
*comp
, *crops
[SMIAPP_PADS
];
1629 smiapp_get_crop_compose(subdev
, fh
, crops
, &comp
, which
);
1632 case V4L2_SUBDEV_SEL_TGT_CROP_ACTUAL
:
1633 comp
->width
= crops
[SMIAPP_PAD_SINK
]->width
;
1634 comp
->height
= crops
[SMIAPP_PAD_SINK
]->height
;
1635 if (which
== V4L2_SUBDEV_FORMAT_ACTIVE
) {
1636 if (ssd
== sensor
->scaler
) {
1639 SMIAPP_LIMIT_SCALER_N_MIN
];
1640 sensor
->scaling_mode
=
1641 SMIAPP_SCALING_MODE_NONE
;
1642 } else if (ssd
== sensor
->binner
) {
1643 sensor
->binning_horizontal
= 1;
1644 sensor
->binning_vertical
= 1;
1648 case V4L2_SUBDEV_SEL_TGT_COMPOSE_ACTUAL
:
1649 *crops
[SMIAPP_PAD_SRC
] = *comp
;
1656 static const struct smiapp_csi_data_format
1657 *smiapp_validate_csi_data_format(struct smiapp_sensor
*sensor
, u32 code
)
1659 const struct smiapp_csi_data_format
*csi_format
= sensor
->csi_format
;
1662 for (i
= 0; i
< ARRAY_SIZE(smiapp_csi_data_formats
); i
++) {
1663 if (sensor
->mbus_frame_fmts
& (1 << i
)
1664 && smiapp_csi_data_formats
[i
].code
== code
)
1665 return &smiapp_csi_data_formats
[i
];
1671 static int smiapp_set_format(struct v4l2_subdev
*subdev
,
1672 struct v4l2_subdev_fh
*fh
,
1673 struct v4l2_subdev_format
*fmt
)
1675 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
1676 struct smiapp_subdev
*ssd
= to_smiapp_subdev(subdev
);
1677 struct v4l2_rect
*crops
[SMIAPP_PADS
];
1679 mutex_lock(&sensor
->mutex
);
1682 * Media bus code is changeable on src subdev's source pad. On
1683 * other source pads we just get format here.
1685 if (fmt
->pad
== ssd
->source_pad
) {
1686 u32 code
= fmt
->format
.code
;
1687 int rval
= __smiapp_get_format(subdev
, fh
, fmt
);
1689 if (!rval
&& subdev
== &sensor
->src
->sd
) {
1690 const struct smiapp_csi_data_format
*csi_format
=
1691 smiapp_validate_csi_data_format(sensor
, code
);
1692 if (fmt
->which
== V4L2_SUBDEV_FORMAT_ACTIVE
)
1693 sensor
->csi_format
= csi_format
;
1694 fmt
->format
.code
= csi_format
->code
;
1697 mutex_unlock(&sensor
->mutex
);
1701 /* Sink pad. Width and height are changeable here. */
1702 fmt
->format
.code
= __smiapp_get_mbus_code(subdev
, fmt
->pad
);
1703 fmt
->format
.width
&= ~1;
1704 fmt
->format
.height
&= ~1;
1707 clamp(fmt
->format
.width
,
1708 sensor
->limits
[SMIAPP_LIMIT_MIN_X_OUTPUT_SIZE
],
1709 sensor
->limits
[SMIAPP_LIMIT_MAX_X_OUTPUT_SIZE
]);
1710 fmt
->format
.height
=
1711 clamp(fmt
->format
.height
,
1712 sensor
->limits
[SMIAPP_LIMIT_MIN_Y_OUTPUT_SIZE
],
1713 sensor
->limits
[SMIAPP_LIMIT_MAX_Y_OUTPUT_SIZE
]);
1715 smiapp_get_crop_compose(subdev
, fh
, crops
, NULL
, fmt
->which
);
1717 crops
[ssd
->sink_pad
]->left
= 0;
1718 crops
[ssd
->sink_pad
]->top
= 0;
1719 crops
[ssd
->sink_pad
]->width
= fmt
->format
.width
;
1720 crops
[ssd
->sink_pad
]->height
= fmt
->format
.height
;
1721 if (fmt
->which
== V4L2_SUBDEV_FORMAT_ACTIVE
)
1722 ssd
->sink_fmt
= *crops
[ssd
->sink_pad
];
1723 smiapp_propagate(subdev
, fh
, fmt
->which
,
1724 V4L2_SUBDEV_SEL_TGT_CROP_ACTUAL
);
1726 mutex_unlock(&sensor
->mutex
);
1732 * Calculate goodness of scaled image size compared to expected image
1733 * size and flags provided.
1735 #define SCALING_GOODNESS 100000
1736 #define SCALING_GOODNESS_EXTREME 100000000
1737 static int scaling_goodness(struct v4l2_subdev
*subdev
, int w
, int ask_w
,
1738 int h
, int ask_h
, u32 flags
)
1740 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
1741 struct i2c_client
*client
= v4l2_get_subdevdata(subdev
);
1749 if (flags
& V4L2_SUBDEV_SEL_FLAG_SIZE_GE
) {
1751 val
-= SCALING_GOODNESS
;
1753 val
-= SCALING_GOODNESS
;
1756 if (flags
& V4L2_SUBDEV_SEL_FLAG_SIZE_LE
) {
1758 val
-= SCALING_GOODNESS
;
1760 val
-= SCALING_GOODNESS
;
1763 val
-= abs(w
- ask_w
);
1764 val
-= abs(h
- ask_h
);
1766 if (w
< sensor
->limits
[SMIAPP_LIMIT_MIN_X_OUTPUT_SIZE
])
1767 val
-= SCALING_GOODNESS_EXTREME
;
1769 dev_dbg(&client
->dev
, "w %d ask_w %d h %d ask_h %d goodness %d\n",
1770 w
, ask_h
, h
, ask_h
, val
);
1775 static void smiapp_set_compose_binner(struct v4l2_subdev
*subdev
,
1776 struct v4l2_subdev_fh
*fh
,
1777 struct v4l2_subdev_selection
*sel
,
1778 struct v4l2_rect
**crops
,
1779 struct v4l2_rect
*comp
)
1781 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
1783 unsigned int binh
= 1, binv
= 1;
1784 unsigned int best
= scaling_goodness(
1786 crops
[SMIAPP_PAD_SINK
]->width
, sel
->r
.width
,
1787 crops
[SMIAPP_PAD_SINK
]->height
, sel
->r
.height
, sel
->flags
);
1789 for (i
= 0; i
< sensor
->nbinning_subtypes
; i
++) {
1790 int this = scaling_goodness(
1792 crops
[SMIAPP_PAD_SINK
]->width
1793 / sensor
->binning_subtypes
[i
].horizontal
,
1795 crops
[SMIAPP_PAD_SINK
]->height
1796 / sensor
->binning_subtypes
[i
].vertical
,
1797 sel
->r
.height
, sel
->flags
);
1800 binh
= sensor
->binning_subtypes
[i
].horizontal
;
1801 binv
= sensor
->binning_subtypes
[i
].vertical
;
1805 if (sel
->which
== V4L2_SUBDEV_FORMAT_ACTIVE
) {
1806 sensor
->binning_vertical
= binv
;
1807 sensor
->binning_horizontal
= binh
;
1810 sel
->r
.width
= (crops
[SMIAPP_PAD_SINK
]->width
/ binh
) & ~1;
1811 sel
->r
.height
= (crops
[SMIAPP_PAD_SINK
]->height
/ binv
) & ~1;
1815 * Calculate best scaling ratio and mode for given output resolution.
1817 * Try all of these: horizontal ratio, vertical ratio and smallest
1818 * size possible (horizontally).
1820 * Also try whether horizontal scaler or full scaler gives a better
1823 static void smiapp_set_compose_scaler(struct v4l2_subdev
*subdev
,
1824 struct v4l2_subdev_fh
*fh
,
1825 struct v4l2_subdev_selection
*sel
,
1826 struct v4l2_rect
**crops
,
1827 struct v4l2_rect
*comp
)
1829 struct i2c_client
*client
= v4l2_get_subdevdata(subdev
);
1830 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
1831 u32 min
, max
, a
, b
, max_m
;
1832 u32 scale_m
= sensor
->limits
[SMIAPP_LIMIT_SCALER_N_MIN
];
1833 int mode
= SMIAPP_SCALING_MODE_HORIZONTAL
;
1839 sel
->r
.width
= min_t(unsigned int, sel
->r
.width
,
1840 crops
[SMIAPP_PAD_SINK
]->width
);
1841 sel
->r
.height
= min_t(unsigned int, sel
->r
.height
,
1842 crops
[SMIAPP_PAD_SINK
]->height
);
1844 a
= crops
[SMIAPP_PAD_SINK
]->width
1845 * sensor
->limits
[SMIAPP_LIMIT_SCALER_N_MIN
] / sel
->r
.width
;
1846 b
= crops
[SMIAPP_PAD_SINK
]->height
1847 * sensor
->limits
[SMIAPP_LIMIT_SCALER_N_MIN
] / sel
->r
.height
;
1848 max_m
= crops
[SMIAPP_PAD_SINK
]->width
1849 * sensor
->limits
[SMIAPP_LIMIT_SCALER_N_MIN
]
1850 / sensor
->limits
[SMIAPP_LIMIT_MIN_X_OUTPUT_SIZE
];
1852 a
= min(sensor
->limits
[SMIAPP_LIMIT_SCALER_M_MAX
],
1853 max(a
, sensor
->limits
[SMIAPP_LIMIT_SCALER_M_MIN
]));
1854 b
= min(sensor
->limits
[SMIAPP_LIMIT_SCALER_M_MAX
],
1855 max(b
, sensor
->limits
[SMIAPP_LIMIT_SCALER_M_MIN
]));
1856 max_m
= min(sensor
->limits
[SMIAPP_LIMIT_SCALER_M_MAX
],
1857 max(max_m
, sensor
->limits
[SMIAPP_LIMIT_SCALER_M_MIN
]));
1859 dev_dbg(&client
->dev
, "scaling: a %d b %d max_m %d\n", a
, b
, max_m
);
1861 min
= min(max_m
, min(a
, b
));
1862 max
= min(max_m
, max(a
, b
));
1871 try[ntry
] = min
+ 1;
1874 try[ntry
] = max
+ 1;
1879 for (i
= 0; i
< ntry
; i
++) {
1880 int this = scaling_goodness(
1882 crops
[SMIAPP_PAD_SINK
]->width
1884 * sensor
->limits
[SMIAPP_LIMIT_SCALER_N_MIN
],
1886 crops
[SMIAPP_PAD_SINK
]->height
,
1890 dev_dbg(&client
->dev
, "trying factor %d (%d)\n", try[i
], i
);
1894 mode
= SMIAPP_SCALING_MODE_HORIZONTAL
;
1898 if (sensor
->limits
[SMIAPP_LIMIT_SCALING_CAPABILITY
]
1899 == SMIAPP_SCALING_CAPABILITY_HORIZONTAL
)
1902 this = scaling_goodness(
1903 subdev
, crops
[SMIAPP_PAD_SINK
]->width
1905 * sensor
->limits
[SMIAPP_LIMIT_SCALER_N_MIN
],
1907 crops
[SMIAPP_PAD_SINK
]->height
1909 * sensor
->limits
[SMIAPP_LIMIT_SCALER_N_MIN
],
1915 mode
= SMIAPP_SCALING_MODE_BOTH
;
1921 (crops
[SMIAPP_PAD_SINK
]->width
1923 * sensor
->limits
[SMIAPP_LIMIT_SCALER_N_MIN
]) & ~1;
1924 if (mode
== SMIAPP_SCALING_MODE_BOTH
)
1926 (crops
[SMIAPP_PAD_SINK
]->height
1928 * sensor
->limits
[SMIAPP_LIMIT_SCALER_N_MIN
])
1931 sel
->r
.height
= crops
[SMIAPP_PAD_SINK
]->height
;
1933 if (sel
->which
== V4L2_SUBDEV_FORMAT_ACTIVE
) {
1934 sensor
->scale_m
= scale_m
;
1935 sensor
->scaling_mode
= mode
;
1938 /* We're only called on source pads. This function sets scaling. */
1939 static int smiapp_set_compose(struct v4l2_subdev
*subdev
,
1940 struct v4l2_subdev_fh
*fh
,
1941 struct v4l2_subdev_selection
*sel
)
1943 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
1944 struct smiapp_subdev
*ssd
= to_smiapp_subdev(subdev
);
1945 struct v4l2_rect
*comp
, *crops
[SMIAPP_PADS
];
1947 smiapp_get_crop_compose(subdev
, fh
, crops
, &comp
, sel
->which
);
1952 if (ssd
== sensor
->binner
)
1953 smiapp_set_compose_binner(subdev
, fh
, sel
, crops
, comp
);
1955 smiapp_set_compose_scaler(subdev
, fh
, sel
, crops
, comp
);
1958 smiapp_propagate(subdev
, fh
, sel
->which
,
1959 V4L2_SUBDEV_SEL_TGT_COMPOSE_ACTUAL
);
1961 if (sel
->which
== V4L2_SUBDEV_FORMAT_ACTIVE
)
1962 return smiapp_update_mode(sensor
);
1967 static int __smiapp_sel_supported(struct v4l2_subdev
*subdev
,
1968 struct v4l2_subdev_selection
*sel
)
1970 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
1971 struct smiapp_subdev
*ssd
= to_smiapp_subdev(subdev
);
1973 /* We only implement crop in three places. */
1974 switch (sel
->target
) {
1975 case V4L2_SUBDEV_SEL_TGT_CROP_ACTUAL
:
1976 case V4L2_SUBDEV_SEL_TGT_CROP_BOUNDS
:
1977 if (ssd
== sensor
->pixel_array
1978 && sel
->pad
== SMIAPP_PA_PAD_SRC
)
1980 if (ssd
== sensor
->src
1981 && sel
->pad
== SMIAPP_PAD_SRC
)
1983 if (ssd
== sensor
->scaler
1984 && sel
->pad
== SMIAPP_PAD_SINK
1985 && sensor
->limits
[SMIAPP_LIMIT_DIGITAL_CROP_CAPABILITY
]
1986 == SMIAPP_DIGITAL_CROP_CAPABILITY_INPUT_CROP
)
1989 case V4L2_SUBDEV_SEL_TGT_COMPOSE_ACTUAL
:
1990 case V4L2_SUBDEV_SEL_TGT_COMPOSE_BOUNDS
:
1991 if (sel
->pad
== ssd
->source_pad
)
1993 if (ssd
== sensor
->binner
)
1995 if (ssd
== sensor
->scaler
1996 && sensor
->limits
[SMIAPP_LIMIT_SCALING_CAPABILITY
]
1997 != SMIAPP_SCALING_CAPABILITY_NONE
)
2005 static int smiapp_set_crop(struct v4l2_subdev
*subdev
,
2006 struct v4l2_subdev_fh
*fh
,
2007 struct v4l2_subdev_selection
*sel
)
2009 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
2010 struct smiapp_subdev
*ssd
= to_smiapp_subdev(subdev
);
2011 struct v4l2_rect
*src_size
, *crops
[SMIAPP_PADS
];
2012 struct v4l2_rect _r
;
2014 smiapp_get_crop_compose(subdev
, fh
, crops
, NULL
, sel
->which
);
2016 if (sel
->which
== V4L2_SUBDEV_FORMAT_ACTIVE
) {
2017 if (sel
->pad
== ssd
->sink_pad
)
2018 src_size
= &ssd
->sink_fmt
;
2020 src_size
= &ssd
->compose
;
2022 if (sel
->pad
== ssd
->sink_pad
) {
2025 _r
.width
= v4l2_subdev_get_try_format(fh
, sel
->pad
)
2027 _r
.height
= v4l2_subdev_get_try_format(fh
, sel
->pad
)
2032 v4l2_subdev_get_try_compose(
2037 if (ssd
== sensor
->src
&& sel
->pad
== SMIAPP_PAD_SRC
) {
2042 sel
->r
.width
= min(sel
->r
.width
, src_size
->width
);
2043 sel
->r
.height
= min(sel
->r
.height
, src_size
->height
);
2045 sel
->r
.left
= min(sel
->r
.left
, src_size
->width
- sel
->r
.width
);
2046 sel
->r
.top
= min(sel
->r
.top
, src_size
->height
- sel
->r
.height
);
2048 *crops
[sel
->pad
] = sel
->r
;
2050 if (ssd
!= sensor
->pixel_array
&& sel
->pad
== SMIAPP_PAD_SINK
)
2051 smiapp_propagate(subdev
, fh
, sel
->which
,
2052 V4L2_SUBDEV_SEL_TGT_CROP_ACTUAL
);
2057 static int __smiapp_get_selection(struct v4l2_subdev
*subdev
,
2058 struct v4l2_subdev_fh
*fh
,
2059 struct v4l2_subdev_selection
*sel
)
2061 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
2062 struct smiapp_subdev
*ssd
= to_smiapp_subdev(subdev
);
2063 struct v4l2_rect
*comp
, *crops
[SMIAPP_PADS
];
2064 struct v4l2_rect sink_fmt
;
2067 ret
= __smiapp_sel_supported(subdev
, sel
);
2071 smiapp_get_crop_compose(subdev
, fh
, crops
, &comp
, sel
->which
);
2073 if (sel
->which
== V4L2_SUBDEV_FORMAT_ACTIVE
) {
2074 sink_fmt
= ssd
->sink_fmt
;
2076 struct v4l2_mbus_framefmt
*fmt
=
2077 v4l2_subdev_get_try_format(fh
, ssd
->sink_pad
);
2081 sink_fmt
.width
= fmt
->width
;
2082 sink_fmt
.height
= fmt
->height
;
2085 switch (sel
->target
) {
2086 case V4L2_SUBDEV_SEL_TGT_CROP_BOUNDS
:
2087 if (ssd
== sensor
->pixel_array
) {
2089 sensor
->limits
[SMIAPP_LIMIT_X_ADDR_MAX
] + 1;
2091 sensor
->limits
[SMIAPP_LIMIT_Y_ADDR_MAX
] + 1;
2092 } else if (sel
->pad
== ssd
->sink_pad
) {
2098 case V4L2_SUBDEV_SEL_TGT_CROP_ACTUAL
:
2099 case V4L2_SUBDEV_SEL_TGT_COMPOSE_BOUNDS
:
2100 sel
->r
= *crops
[sel
->pad
];
2102 case V4L2_SUBDEV_SEL_TGT_COMPOSE_ACTUAL
:
2110 static int smiapp_get_selection(struct v4l2_subdev
*subdev
,
2111 struct v4l2_subdev_fh
*fh
,
2112 struct v4l2_subdev_selection
*sel
)
2114 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
2117 mutex_lock(&sensor
->mutex
);
2118 rval
= __smiapp_get_selection(subdev
, fh
, sel
);
2119 mutex_unlock(&sensor
->mutex
);
2123 static int smiapp_set_selection(struct v4l2_subdev
*subdev
,
2124 struct v4l2_subdev_fh
*fh
,
2125 struct v4l2_subdev_selection
*sel
)
2127 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
2130 ret
= __smiapp_sel_supported(subdev
, sel
);
2134 mutex_lock(&sensor
->mutex
);
2136 sel
->r
.left
= max(0, sel
->r
.left
& ~1);
2137 sel
->r
.top
= max(0, sel
->r
.top
& ~1);
2138 sel
->r
.width
= max(0, SMIAPP_ALIGN_DIM(sel
->r
.width
, sel
->flags
));
2139 sel
->r
.height
= max(0, SMIAPP_ALIGN_DIM(sel
->r
.height
, sel
->flags
));
2141 sel
->r
.width
= max_t(unsigned int,
2142 sensor
->limits
[SMIAPP_LIMIT_MIN_X_OUTPUT_SIZE
],
2144 sel
->r
.height
= max_t(unsigned int,
2145 sensor
->limits
[SMIAPP_LIMIT_MIN_Y_OUTPUT_SIZE
],
2148 switch (sel
->target
) {
2149 case V4L2_SUBDEV_SEL_TGT_CROP_ACTUAL
:
2150 ret
= smiapp_set_crop(subdev
, fh
, sel
);
2152 case V4L2_SUBDEV_SEL_TGT_COMPOSE_ACTUAL
:
2153 ret
= smiapp_set_compose(subdev
, fh
, sel
);
2159 mutex_unlock(&sensor
->mutex
);
2163 static int smiapp_get_skip_frames(struct v4l2_subdev
*subdev
, u32
*frames
)
2165 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
2167 *frames
= sensor
->frame_skip
;
2171 /* -----------------------------------------------------------------------------
2176 smiapp_sysfs_nvm_read(struct device
*dev
, struct device_attribute
*attr
,
2179 struct v4l2_subdev
*subdev
= i2c_get_clientdata(to_i2c_client(dev
));
2180 struct i2c_client
*client
= v4l2_get_subdevdata(subdev
);
2181 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
2182 unsigned int nbytes
;
2184 if (!sensor
->dev_init_done
)
2187 if (!sensor
->nvm_size
) {
2188 /* NVM not read yet - read it now */
2189 sensor
->nvm_size
= sensor
->platform_data
->nvm_size
;
2190 if (smiapp_set_power(subdev
, 1) < 0)
2192 if (smiapp_read_nvm(sensor
, sensor
->nvm
)) {
2193 dev_err(&client
->dev
, "nvm read failed\n");
2196 smiapp_set_power(subdev
, 0);
2199 * NVM is still way below a PAGE_SIZE, so we can safely
2200 * assume this for now.
2202 nbytes
= min_t(unsigned int, sensor
->nvm_size
, PAGE_SIZE
);
2203 memcpy(buf
, sensor
->nvm
, nbytes
);
2207 static DEVICE_ATTR(nvm
, S_IRUGO
, smiapp_sysfs_nvm_read
, NULL
);
2209 /* -----------------------------------------------------------------------------
2210 * V4L2 subdev core operations
2213 static int smiapp_identify_module(struct v4l2_subdev
*subdev
)
2215 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
2216 struct i2c_client
*client
= v4l2_get_subdevdata(subdev
);
2217 struct smiapp_module_info
*minfo
= &sensor
->minfo
;
2221 minfo
->name
= SMIAPP_NAME
;
2224 rval
= smiapp_read_8only(sensor
, SMIAPP_REG_U8_MANUFACTURER_ID
,
2225 &minfo
->manufacturer_id
);
2227 rval
= smiapp_read_8only(sensor
, SMIAPP_REG_U16_MODEL_ID
,
2230 rval
= smiapp_read_8only(sensor
,
2231 SMIAPP_REG_U8_REVISION_NUMBER_MAJOR
,
2232 &minfo
->revision_number_major
);
2234 rval
= smiapp_read_8only(sensor
,
2235 SMIAPP_REG_U8_REVISION_NUMBER_MINOR
,
2236 &minfo
->revision_number_minor
);
2238 rval
= smiapp_read_8only(sensor
,
2239 SMIAPP_REG_U8_MODULE_DATE_YEAR
,
2240 &minfo
->module_year
);
2242 rval
= smiapp_read_8only(sensor
,
2243 SMIAPP_REG_U8_MODULE_DATE_MONTH
,
2244 &minfo
->module_month
);
2246 rval
= smiapp_read_8only(sensor
, SMIAPP_REG_U8_MODULE_DATE_DAY
,
2247 &minfo
->module_day
);
2251 rval
= smiapp_read_8only(sensor
,
2252 SMIAPP_REG_U8_SENSOR_MANUFACTURER_ID
,
2253 &minfo
->sensor_manufacturer_id
);
2255 rval
= smiapp_read_8only(sensor
,
2256 SMIAPP_REG_U16_SENSOR_MODEL_ID
,
2257 &minfo
->sensor_model_id
);
2259 rval
= smiapp_read_8only(sensor
,
2260 SMIAPP_REG_U8_SENSOR_REVISION_NUMBER
,
2261 &minfo
->sensor_revision_number
);
2263 rval
= smiapp_read_8only(sensor
,
2264 SMIAPP_REG_U8_SENSOR_FIRMWARE_VERSION
,
2265 &minfo
->sensor_firmware_version
);
2269 rval
= smiapp_read_8only(sensor
, SMIAPP_REG_U8_SMIA_VERSION
,
2270 &minfo
->smia_version
);
2272 rval
= smiapp_read_8only(sensor
, SMIAPP_REG_U8_SMIAPP_VERSION
,
2273 &minfo
->smiapp_version
);
2276 dev_err(&client
->dev
, "sensor detection failed\n");
2280 dev_dbg(&client
->dev
, "module 0x%2.2x-0x%4.4x\n",
2281 minfo
->manufacturer_id
, minfo
->model_id
);
2283 dev_dbg(&client
->dev
,
2284 "module revision 0x%2.2x-0x%2.2x date %2.2d-%2.2d-%2.2d\n",
2285 minfo
->revision_number_major
, minfo
->revision_number_minor
,
2286 minfo
->module_year
, minfo
->module_month
, minfo
->module_day
);
2288 dev_dbg(&client
->dev
, "sensor 0x%2.2x-0x%4.4x\n",
2289 minfo
->sensor_manufacturer_id
, minfo
->sensor_model_id
);
2291 dev_dbg(&client
->dev
,
2292 "sensor revision 0x%2.2x firmware version 0x%2.2x\n",
2293 minfo
->sensor_revision_number
, minfo
->sensor_firmware_version
);
2295 dev_dbg(&client
->dev
, "smia version %2.2d smiapp version %2.2d\n",
2296 minfo
->smia_version
, minfo
->smiapp_version
);
2299 * Some modules have bad data in the lvalues below. Hope the
2300 * rvalues have better stuff. The lvalues are module
2301 * parameters whereas the rvalues are sensor parameters.
2303 if (!minfo
->manufacturer_id
&& !minfo
->model_id
) {
2304 minfo
->manufacturer_id
= minfo
->sensor_manufacturer_id
;
2305 minfo
->model_id
= minfo
->sensor_model_id
;
2306 minfo
->revision_number_major
= minfo
->sensor_revision_number
;
2309 for (i
= 0; i
< ARRAY_SIZE(smiapp_module_idents
); i
++) {
2310 if (smiapp_module_idents
[i
].manufacturer_id
2311 != minfo
->manufacturer_id
)
2313 if (smiapp_module_idents
[i
].model_id
!= minfo
->model_id
)
2315 if (smiapp_module_idents
[i
].flags
2316 & SMIAPP_MODULE_IDENT_FLAG_REV_LE
) {
2317 if (smiapp_module_idents
[i
].revision_number_major
2318 < minfo
->revision_number_major
)
2321 if (smiapp_module_idents
[i
].revision_number_major
2322 != minfo
->revision_number_major
)
2326 minfo
->name
= smiapp_module_idents
[i
].name
;
2327 minfo
->quirk
= smiapp_module_idents
[i
].quirk
;
2331 if (i
>= ARRAY_SIZE(smiapp_module_idents
))
2332 dev_warn(&client
->dev
,
2333 "no quirks for this module; let's hope it's fully compliant\n");
2335 dev_dbg(&client
->dev
, "the sensor is called %s, ident %2.2x%4.4x%2.2x\n",
2336 minfo
->name
, minfo
->manufacturer_id
, minfo
->model_id
,
2337 minfo
->revision_number_major
);
2339 strlcpy(subdev
->name
, sensor
->minfo
.name
, sizeof(subdev
->name
));
2344 static const struct v4l2_subdev_ops smiapp_ops
;
2345 static const struct v4l2_subdev_internal_ops smiapp_internal_ops
;
2346 static const struct media_entity_operations smiapp_entity_ops
;
2348 static int smiapp_registered(struct v4l2_subdev
*subdev
)
2350 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
2351 struct i2c_client
*client
= v4l2_get_subdevdata(subdev
);
2352 struct smiapp_subdev
*last
= NULL
;
2357 sensor
->vana
= regulator_get(&client
->dev
, "VANA");
2358 if (IS_ERR(sensor
->vana
)) {
2359 dev_err(&client
->dev
, "could not get regulator for vana\n");
2363 if (!sensor
->platform_data
->set_xclk
) {
2364 sensor
->ext_clk
= clk_get(&client
->dev
,
2365 sensor
->platform_data
->ext_clk_name
);
2366 if (IS_ERR(sensor
->ext_clk
)) {
2367 dev_err(&client
->dev
, "could not get clock %s\n",
2368 sensor
->platform_data
->ext_clk_name
);
2373 rval
= clk_set_rate(sensor
->ext_clk
,
2374 sensor
->platform_data
->ext_clk
);
2376 dev_err(&client
->dev
,
2377 "unable to set clock %s freq to %u\n",
2378 sensor
->platform_data
->ext_clk_name
,
2379 sensor
->platform_data
->ext_clk
);
2381 goto out_clk_set_rate
;
2385 if (sensor
->platform_data
->xshutdown
!= SMIAPP_NO_XSHUTDOWN
) {
2386 if (gpio_request_one(sensor
->platform_data
->xshutdown
, 0,
2387 "SMIA++ xshutdown") != 0) {
2388 dev_err(&client
->dev
,
2389 "unable to acquire reset gpio %d\n",
2390 sensor
->platform_data
->xshutdown
);
2392 goto out_clk_set_rate
;
2396 rval
= smiapp_power_on(sensor
);
2399 goto out_smiapp_power_on
;
2402 rval
= smiapp_identify_module(subdev
);
2408 rval
= smiapp_get_all_limits(sensor
);
2415 * Handle Sensor Module orientation on the board.
2417 * The application of H-FLIP and V-FLIP on the sensor is modified by
2418 * the sensor orientation on the board.
2420 * For SMIAPP_BOARD_SENSOR_ORIENT_180 the default behaviour is to set
2421 * both H-FLIP and V-FLIP for normal operation which also implies
2422 * that a set/unset operation for user space HFLIP and VFLIP v4l2
2423 * controls will need to be internally inverted.
2425 * Rotation also changes the bayer pattern.
2427 if (sensor
->platform_data
->module_board_orient
==
2428 SMIAPP_MODULE_BOARD_ORIENT_180
)
2429 sensor
->hvflip_inv_mask
= SMIAPP_IMAGE_ORIENTATION_HFLIP
|
2430 SMIAPP_IMAGE_ORIENTATION_VFLIP
;
2432 rval
= smiapp_get_mbus_formats(sensor
);
2438 if (sensor
->limits
[SMIAPP_LIMIT_BINNING_CAPABILITY
]) {
2441 rval
= smiapp_read(sensor
,
2442 SMIAPP_REG_U8_BINNING_SUBTYPES
, &val
);
2447 sensor
->nbinning_subtypes
= min_t(u8
, val
,
2448 SMIAPP_BINNING_SUBTYPES
);
2450 for (i
= 0; i
< sensor
->nbinning_subtypes
; i
++) {
2452 sensor
, SMIAPP_REG_U8_BINNING_TYPE_n(i
), &val
);
2457 sensor
->binning_subtypes
[i
] =
2458 *(struct smiapp_binning_subtype
*)&val
;
2460 dev_dbg(&client
->dev
, "binning %xx%x\n",
2461 sensor
->binning_subtypes
[i
].horizontal
,
2462 sensor
->binning_subtypes
[i
].vertical
);
2465 sensor
->binning_horizontal
= 1;
2466 sensor
->binning_vertical
= 1;
2468 /* SMIA++ NVM initialization - it will be read from the sensor
2469 * when it is first requested by userspace.
2471 if (sensor
->minfo
.smiapp_version
&& sensor
->platform_data
->nvm_size
) {
2472 sensor
->nvm
= kzalloc(sensor
->platform_data
->nvm_size
,
2474 if (sensor
->nvm
== NULL
) {
2475 dev_err(&client
->dev
, "nvm buf allocation failed\n");
2480 if (device_create_file(&client
->dev
, &dev_attr_nvm
) != 0) {
2481 dev_err(&client
->dev
, "sysfs nvm entry failed\n");
2487 rval
= smiapp_call_quirk(sensor
, limits
);
2489 dev_err(&client
->dev
, "limits quirks failed\n");
2490 goto out_nvm_release
;
2493 /* We consider this as profile 0 sensor if any of these are zero. */
2494 if (!sensor
->limits
[SMIAPP_LIMIT_MIN_OP_SYS_CLK_DIV
] ||
2495 !sensor
->limits
[SMIAPP_LIMIT_MAX_OP_SYS_CLK_DIV
] ||
2496 !sensor
->limits
[SMIAPP_LIMIT_MIN_OP_PIX_CLK_DIV
] ||
2497 !sensor
->limits
[SMIAPP_LIMIT_MAX_OP_PIX_CLK_DIV
]) {
2498 sensor
->minfo
.smiapp_profile
= SMIAPP_PROFILE_0
;
2499 } else if (sensor
->limits
[SMIAPP_LIMIT_SCALING_CAPABILITY
]
2500 != SMIAPP_SCALING_CAPABILITY_NONE
) {
2501 if (sensor
->limits
[SMIAPP_LIMIT_SCALING_CAPABILITY
]
2502 == SMIAPP_SCALING_CAPABILITY_HORIZONTAL
)
2503 sensor
->minfo
.smiapp_profile
= SMIAPP_PROFILE_1
;
2505 sensor
->minfo
.smiapp_profile
= SMIAPP_PROFILE_2
;
2506 sensor
->scaler
= &sensor
->ssds
[sensor
->ssds_used
];
2507 sensor
->ssds_used
++;
2508 } else if (sensor
->limits
[SMIAPP_LIMIT_DIGITAL_CROP_CAPABILITY
]
2509 == SMIAPP_DIGITAL_CROP_CAPABILITY_INPUT_CROP
) {
2510 sensor
->scaler
= &sensor
->ssds
[sensor
->ssds_used
];
2511 sensor
->ssds_used
++;
2513 sensor
->binner
= &sensor
->ssds
[sensor
->ssds_used
];
2514 sensor
->ssds_used
++;
2515 sensor
->pixel_array
= &sensor
->ssds
[sensor
->ssds_used
];
2516 sensor
->ssds_used
++;
2518 sensor
->scale_m
= sensor
->limits
[SMIAPP_LIMIT_SCALER_N_MIN
];
2520 for (i
= 0; i
< SMIAPP_SUBDEVS
; i
++) {
2522 struct smiapp_subdev
*ssd
;
2524 } const __this
[] = {
2525 { sensor
->scaler
, "scaler", },
2526 { sensor
->binner
, "binner", },
2527 { sensor
->pixel_array
, "pixel array", },
2528 }, *_this
= &__this
[i
];
2529 struct smiapp_subdev
*this = _this
->ssd
;
2534 if (this != sensor
->src
)
2535 v4l2_subdev_init(&this->sd
, &smiapp_ops
);
2537 this->sensor
= sensor
;
2539 if (this == sensor
->pixel_array
) {
2543 this->source_pad
= 1;
2546 snprintf(this->sd
.name
,
2547 sizeof(this->sd
.name
), "%s %s",
2548 sensor
->minfo
.name
, _this
->name
);
2550 this->sink_fmt
.width
=
2551 sensor
->limits
[SMIAPP_LIMIT_X_ADDR_MAX
] + 1;
2552 this->sink_fmt
.height
=
2553 sensor
->limits
[SMIAPP_LIMIT_Y_ADDR_MAX
] + 1;
2554 this->compose
.width
= this->sink_fmt
.width
;
2555 this->compose
.height
= this->sink_fmt
.height
;
2556 this->crop
[this->source_pad
] = this->compose
;
2557 this->pads
[this->source_pad
].flags
= MEDIA_PAD_FL_SOURCE
;
2558 if (this != sensor
->pixel_array
) {
2559 this->crop
[this->sink_pad
] = this->compose
;
2560 this->pads
[this->sink_pad
].flags
= MEDIA_PAD_FL_SINK
;
2563 this->sd
.entity
.ops
= &smiapp_entity_ops
;
2570 this->sd
.flags
|= V4L2_SUBDEV_FL_HAS_DEVNODE
;
2571 this->sd
.internal_ops
= &smiapp_internal_ops
;
2572 this->sd
.owner
= NULL
;
2573 v4l2_set_subdevdata(&this->sd
, client
);
2575 rval
= media_entity_init(&this->sd
.entity
,
2576 this->npads
, this->pads
, 0);
2578 dev_err(&client
->dev
,
2579 "media_entity_init failed\n");
2580 goto out_nvm_release
;
2583 rval
= media_entity_create_link(&this->sd
.entity
,
2587 MEDIA_LNK_FL_ENABLED
|
2588 MEDIA_LNK_FL_IMMUTABLE
);
2590 dev_err(&client
->dev
,
2591 "media_entity_create_link failed\n");
2592 goto out_nvm_release
;
2595 rval
= v4l2_device_register_subdev(sensor
->src
->sd
.v4l2_dev
,
2598 dev_err(&client
->dev
,
2599 "v4l2_device_register_subdev failed\n");
2600 goto out_nvm_release
;
2606 dev_dbg(&client
->dev
, "profile %d\n", sensor
->minfo
.smiapp_profile
);
2608 sensor
->pixel_array
->sd
.entity
.type
= MEDIA_ENT_T_V4L2_SUBDEV_SENSOR
;
2611 smiapp_read_frame_fmt(sensor
);
2612 rval
= smiapp_init_controls(sensor
);
2614 goto out_nvm_release
;
2616 rval
= smiapp_update_mode(sensor
);
2618 dev_err(&client
->dev
, "update mode failed\n");
2619 goto out_nvm_release
;
2622 sensor
->streaming
= false;
2623 sensor
->dev_init_done
= true;
2625 /* check flash capability */
2626 rval
= smiapp_read(sensor
, SMIAPP_REG_U8_FLASH_MODE_CAPABILITY
, &tmp
);
2627 sensor
->flash_capability
= tmp
;
2629 goto out_nvm_release
;
2631 smiapp_power_off(sensor
);
2636 device_remove_file(&client
->dev
, &dev_attr_nvm
);
2641 smiapp_power_off(sensor
);
2643 out_smiapp_power_on
:
2644 if (sensor
->platform_data
->xshutdown
!= SMIAPP_NO_XSHUTDOWN
)
2645 gpio_free(sensor
->platform_data
->xshutdown
);
2648 clk_put(sensor
->ext_clk
);
2649 sensor
->ext_clk
= NULL
;
2652 regulator_put(sensor
->vana
);
2653 sensor
->vana
= NULL
;
2657 static int smiapp_open(struct v4l2_subdev
*sd
, struct v4l2_subdev_fh
*fh
)
2659 struct smiapp_subdev
*ssd
= to_smiapp_subdev(sd
);
2660 struct smiapp_sensor
*sensor
= ssd
->sensor
;
2662 smiapp_csi_data_formats
[smiapp_pixel_order(sensor
)].code
;
2665 mutex_lock(&sensor
->mutex
);
2667 for (i
= 0; i
< ssd
->npads
; i
++) {
2668 struct v4l2_mbus_framefmt
*try_fmt
=
2669 v4l2_subdev_get_try_format(fh
, i
);
2670 struct v4l2_rect
*try_crop
= v4l2_subdev_get_try_crop(fh
, i
);
2671 struct v4l2_rect
*try_comp
;
2673 try_fmt
->width
= sensor
->limits
[SMIAPP_LIMIT_X_ADDR_MAX
] + 1;
2674 try_fmt
->height
= sensor
->limits
[SMIAPP_LIMIT_Y_ADDR_MAX
] + 1;
2675 try_fmt
->code
= mbus_code
;
2679 try_crop
->width
= try_fmt
->width
;
2680 try_crop
->height
= try_fmt
->height
;
2682 if (ssd
!= sensor
->pixel_array
)
2685 try_comp
= v4l2_subdev_get_try_compose(fh
, i
);
2686 *try_comp
= *try_crop
;
2689 mutex_unlock(&sensor
->mutex
);
2691 return smiapp_set_power(sd
, 1);
2694 static int smiapp_close(struct v4l2_subdev
*sd
, struct v4l2_subdev_fh
*fh
)
2696 return smiapp_set_power(sd
, 0);
2699 static const struct v4l2_subdev_video_ops smiapp_video_ops
= {
2700 .s_stream
= smiapp_set_stream
,
2703 static const struct v4l2_subdev_core_ops smiapp_core_ops
= {
2704 .s_power
= smiapp_set_power
,
2707 static const struct v4l2_subdev_pad_ops smiapp_pad_ops
= {
2708 .enum_mbus_code
= smiapp_enum_mbus_code
,
2709 .get_fmt
= smiapp_get_format
,
2710 .set_fmt
= smiapp_set_format
,
2711 .get_selection
= smiapp_get_selection
,
2712 .set_selection
= smiapp_set_selection
,
2715 static const struct v4l2_subdev_sensor_ops smiapp_sensor_ops
= {
2716 .g_skip_frames
= smiapp_get_skip_frames
,
2719 static const struct v4l2_subdev_ops smiapp_ops
= {
2720 .core
= &smiapp_core_ops
,
2721 .video
= &smiapp_video_ops
,
2722 .pad
= &smiapp_pad_ops
,
2723 .sensor
= &smiapp_sensor_ops
,
2726 static const struct media_entity_operations smiapp_entity_ops
= {
2727 .link_validate
= v4l2_subdev_link_validate
,
2730 static const struct v4l2_subdev_internal_ops smiapp_internal_src_ops
= {
2731 .registered
= smiapp_registered
,
2732 .open
= smiapp_open
,
2733 .close
= smiapp_close
,
2736 static const struct v4l2_subdev_internal_ops smiapp_internal_ops
= {
2737 .open
= smiapp_open
,
2738 .close
= smiapp_close
,
2741 /* -----------------------------------------------------------------------------
2747 static int smiapp_suspend(struct device
*dev
)
2749 struct i2c_client
*client
= to_i2c_client(dev
);
2750 struct v4l2_subdev
*subdev
= i2c_get_clientdata(client
);
2751 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
2754 BUG_ON(mutex_is_locked(&sensor
->mutex
));
2756 if (sensor
->power_count
== 0)
2759 if (sensor
->streaming
)
2760 smiapp_stop_streaming(sensor
);
2762 streaming
= sensor
->streaming
;
2764 smiapp_power_off(sensor
);
2766 /* save state for resume */
2767 sensor
->streaming
= streaming
;
2772 static int smiapp_resume(struct device
*dev
)
2774 struct i2c_client
*client
= to_i2c_client(dev
);
2775 struct v4l2_subdev
*subdev
= i2c_get_clientdata(client
);
2776 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
2779 if (sensor
->power_count
== 0)
2782 rval
= smiapp_power_on(sensor
);
2786 if (sensor
->streaming
)
2787 rval
= smiapp_start_streaming(sensor
);
2794 #define smiapp_suspend NULL
2795 #define smiapp_resume NULL
2797 #endif /* CONFIG_PM */
2799 static int smiapp_probe(struct i2c_client
*client
,
2800 const struct i2c_device_id
*devid
)
2802 struct smiapp_sensor
*sensor
;
2805 if (client
->dev
.platform_data
== NULL
)
2808 sensor
= kzalloc(sizeof(*sensor
), GFP_KERNEL
);
2812 sensor
->platform_data
= client
->dev
.platform_data
;
2813 mutex_init(&sensor
->mutex
);
2814 mutex_init(&sensor
->power_mutex
);
2815 sensor
->src
= &sensor
->ssds
[sensor
->ssds_used
];
2817 v4l2_i2c_subdev_init(&sensor
->src
->sd
, client
, &smiapp_ops
);
2818 sensor
->src
->sd
.internal_ops
= &smiapp_internal_src_ops
;
2819 sensor
->src
->sd
.flags
|= V4L2_SUBDEV_FL_HAS_DEVNODE
;
2820 sensor
->src
->sensor
= sensor
;
2822 sensor
->src
->pads
[0].flags
= MEDIA_PAD_FL_SOURCE
;
2823 rval
= media_entity_init(&sensor
->src
->sd
.entity
, 2,
2824 sensor
->src
->pads
, 0);
2831 static int __exit
smiapp_remove(struct i2c_client
*client
)
2833 struct v4l2_subdev
*subdev
= i2c_get_clientdata(client
);
2834 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
2837 if (sensor
->power_count
) {
2838 if (sensor
->platform_data
->xshutdown
!= SMIAPP_NO_XSHUTDOWN
)
2839 gpio_set_value(sensor
->platform_data
->xshutdown
, 0);
2840 if (sensor
->platform_data
->set_xclk
)
2841 sensor
->platform_data
->set_xclk(&sensor
->src
->sd
, 0);
2843 clk_disable(sensor
->ext_clk
);
2844 sensor
->power_count
= 0;
2848 device_remove_file(&client
->dev
, &dev_attr_nvm
);
2852 for (i
= 0; i
< sensor
->ssds_used
; i
++) {
2853 media_entity_cleanup(&sensor
->ssds
[i
].sd
.entity
);
2854 v4l2_device_unregister_subdev(&sensor
->ssds
[i
].sd
);
2856 smiapp_free_controls(sensor
);
2857 if (sensor
->platform_data
->xshutdown
!= SMIAPP_NO_XSHUTDOWN
)
2858 gpio_free(sensor
->platform_data
->xshutdown
);
2859 if (sensor
->ext_clk
)
2860 clk_put(sensor
->ext_clk
);
2862 regulator_put(sensor
->vana
);
2869 static const struct i2c_device_id smiapp_id_table
[] = {
2873 MODULE_DEVICE_TABLE(i2c
, smiapp_id_table
);
2875 static const struct dev_pm_ops smiapp_pm_ops
= {
2876 .suspend
= smiapp_suspend
,
2877 .resume
= smiapp_resume
,
2880 static struct i2c_driver smiapp_i2c_driver
= {
2882 .name
= SMIAPP_NAME
,
2883 .pm
= &smiapp_pm_ops
,
2885 .probe
= smiapp_probe
,
2886 .remove
= __exit_p(smiapp_remove
),
2887 .id_table
= smiapp_id_table
,
2890 module_i2c_driver(smiapp_i2c_driver
);
2892 MODULE_AUTHOR("Sakari Ailus <sakari.ailus@maxwell.research.nokia.com>");
2893 MODULE_DESCRIPTION("Generic SMIA/SMIA++ camera module driver");
2894 MODULE_LICENSE("GPL");