diff options
Diffstat (limited to 'drivers/media/video/smiapp/smiapp-core.c')
| -rw-r--r-- | drivers/media/video/smiapp/smiapp-core.c | 2895 |
1 files changed, 0 insertions, 2895 deletions
diff --git a/drivers/media/video/smiapp/smiapp-core.c b/drivers/media/video/smiapp/smiapp-core.c deleted file mode 100644 index bfd47c106134..000000000000 --- a/drivers/media/video/smiapp/smiapp-core.c +++ /dev/null @@ -1,2895 +0,0 @@ -/* - * drivers/media/video/smiapp/smiapp-core.c - * - * Generic driver for SMIA/SMIA++ compliant camera modules - * - * Copyright (C) 2010--2012 Nokia Corporation - * Contact: Sakari Ailus <sakari.ailus@maxwell.research.nokia.com> - * - * Based on smiapp driver by Vimarsh Zutshi - * Based on jt8ev1.c by Vimarsh Zutshi - * Based on smia-sensor.c by Tuukka Toivonen <tuukkat76@gmail.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA - * - */ - -#include <linux/clk.h> -#include <linux/delay.h> -#include <linux/device.h> -#include <linux/gpio.h> -#include <linux/module.h> -#include <linux/slab.h> -#include <linux/regulator/consumer.h> -#include <linux/v4l2-mediabus.h> -#include <media/v4l2-device.h> - -#include "smiapp.h" - -#define SMIAPP_ALIGN_DIM(dim, flags) \ - ((flags) & V4L2_SEL_FLAG_GE \ - ? ALIGN((dim), 2) \ - : (dim) & ~1) - -/* - * smiapp_module_idents - supported camera modules - */ -static const struct smiapp_module_ident smiapp_module_idents[] = { - SMIAPP_IDENT_L(0x01, 0x022b, -1, "vs6555"), - SMIAPP_IDENT_L(0x01, 0x022e, -1, "vw6558"), - SMIAPP_IDENT_L(0x07, 0x7698, -1, "ovm7698"), - SMIAPP_IDENT_L(0x0b, 0x4242, -1, "smiapp-003"), - SMIAPP_IDENT_L(0x0c, 0x208a, -1, "tcm8330md"), - SMIAPP_IDENT_LQ(0x0c, 0x2134, -1, "tcm8500md", &smiapp_tcm8500md_quirk), - SMIAPP_IDENT_L(0x0c, 0x213e, -1, "et8en2"), - SMIAPP_IDENT_L(0x0c, 0x2184, -1, "tcm8580md"), - SMIAPP_IDENT_LQ(0x0c, 0x560f, -1, "jt8ew9", &smiapp_jt8ew9_quirk), - SMIAPP_IDENT_LQ(0x10, 0x4141, -1, "jt8ev1", &smiapp_jt8ev1_quirk), - SMIAPP_IDENT_LQ(0x10, 0x4241, -1, "imx125es", &smiapp_imx125es_quirk), -}; - -/* - * - * Dynamic Capability Identification - * - */ - -static int smiapp_read_frame_fmt(struct smiapp_sensor *sensor) -{ - struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); - u32 fmt_model_type, fmt_model_subtype, ncol_desc, nrow_desc; - unsigned int i; - int rval; - int line_count = 0; - int embedded_start = -1, embedded_end = -1; - int image_start = 0; - - rval = smiapp_read(sensor, SMIAPP_REG_U8_FRAME_FORMAT_MODEL_TYPE, - &fmt_model_type); - if (rval) - return rval; - - rval = smiapp_read(sensor, SMIAPP_REG_U8_FRAME_FORMAT_MODEL_SUBTYPE, - &fmt_model_subtype); - if (rval) - return rval; - - ncol_desc = (fmt_model_subtype - & SMIAPP_FRAME_FORMAT_MODEL_SUBTYPE_NCOLS_MASK) - >> SMIAPP_FRAME_FORMAT_MODEL_SUBTYPE_NCOLS_SHIFT; - nrow_desc = fmt_model_subtype - & SMIAPP_FRAME_FORMAT_MODEL_SUBTYPE_NROWS_MASK; - - dev_dbg(&client->dev, "format_model_type %s\n", - fmt_model_type == SMIAPP_FRAME_FORMAT_MODEL_TYPE_2BYTE - ? "2 byte" : - fmt_model_type == SMIAPP_FRAME_FORMAT_MODEL_TYPE_4BYTE - ? "4 byte" : "is simply bad"); - - for (i = 0; i < ncol_desc + nrow_desc; i++) { - u32 desc; - u32 pixelcode; - u32 pixels; - char *which; - char *what; - - if (fmt_model_type == SMIAPP_FRAME_FORMAT_MODEL_TYPE_2BYTE) { - rval = smiapp_read( - sensor, - SMIAPP_REG_U16_FRAME_FORMAT_DESCRIPTOR_2(i), - &desc); - if (rval) - return rval; - - pixelcode = - (desc - & SMIAPP_FRAME_FORMAT_DESC_2_PIXELCODE_MASK) - >> SMIAPP_FRAME_FORMAT_DESC_2_PIXELCODE_SHIFT; - pixels = desc & SMIAPP_FRAME_FORMAT_DESC_2_PIXELS_MASK; - } else if (fmt_model_type - == SMIAPP_FRAME_FORMAT_MODEL_TYPE_4BYTE) { - rval = smiapp_read( - sensor, - SMIAPP_REG_U32_FRAME_FORMAT_DESCRIPTOR_4(i), - &desc); - if (rval) - return rval; - - pixelcode = - (desc - & SMIAPP_FRAME_FORMAT_DESC_4_PIXELCODE_MASK) - >> SMIAPP_FRAME_FORMAT_DESC_4_PIXELCODE_SHIFT; - pixels = desc & SMIAPP_FRAME_FORMAT_DESC_4_PIXELS_MASK; - } else { - dev_dbg(&client->dev, - "invalid frame format model type %d\n", - fmt_model_type); - return -EINVAL; - } - - if (i < ncol_desc) - which = "columns"; - else - which = "rows"; - - switch (pixelcode) { - case SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_EMBEDDED: - what = "embedded"; - break; - case SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_DUMMY: - what = "dummy"; - break; - case SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_BLACK: - what = "black"; - break; - case SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_DARK: - what = "dark"; - break; - case SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_VISIBLE: - what = "visible"; - break; - default: - what = "invalid"; - dev_dbg(&client->dev, "pixelcode %d\n", pixelcode); - break; - } - - dev_dbg(&client->dev, "%s pixels: %d %s\n", - what, pixels, which); - - if (i < ncol_desc) - continue; - - /* Handle row descriptors */ - if (pixelcode - == SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_EMBEDDED) { - embedded_start = line_count; - } else { - if (pixelcode == SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_VISIBLE - || pixels >= sensor->limits[SMIAPP_LIMIT_MIN_FRAME_LENGTH_LINES] / 2) - image_start = line_count; - if (embedded_start != -1 && embedded_end == -1) - embedded_end = line_count; - } - line_count += pixels; - } - - if (embedded_start == -1 || embedded_end == -1) { - embedded_start = 0; - embedded_end = 0; - } - - dev_dbg(&client->dev, "embedded data from lines %d to %d\n", - embedded_start, embedded_end); - dev_dbg(&client->dev, "image data starts at line %d\n", image_start); - - return 0; -} - -static int smiapp_pll_configure(struct smiapp_sensor *sensor) -{ - struct smiapp_pll *pll = &sensor->pll; - int rval; - - rval = smiapp_write( - sensor, SMIAPP_REG_U16_VT_PIX_CLK_DIV, pll->vt_pix_clk_div); - if (rval < 0) - return rval; - - rval = smiapp_write( - sensor, SMIAPP_REG_U16_VT_SYS_CLK_DIV, pll->vt_sys_clk_div); - if (rval < 0) - return rval; - - rval = smiapp_write( - sensor, SMIAPP_REG_U16_PRE_PLL_CLK_DIV, pll->pre_pll_clk_div); - if (rval < 0) - return rval; - - rval = smiapp_write( - sensor, SMIAPP_REG_U16_PLL_MULTIPLIER, pll->pll_multiplier); - if (rval < 0) - return rval; - - /* Lane op clock ratio does not apply here. */ - rval = smiapp_write( - sensor, SMIAPP_REG_U32_REQUESTED_LINK_BIT_RATE_MBPS, - DIV_ROUND_UP(pll->op_sys_clk_freq_hz, 1000000 / 256 / 256)); - if (rval < 0 || sensor->minfo.smiapp_profile == SMIAPP_PROFILE_0) - return rval; - - rval = smiapp_write( - sensor, SMIAPP_REG_U16_OP_PIX_CLK_DIV, pll->op_pix_clk_div); - if (rval < 0) - return rval; - - return smiapp_write( - sensor, SMIAPP_REG_U16_OP_SYS_CLK_DIV, pll->op_sys_clk_div); -} - -static int smiapp_pll_update(struct smiapp_sensor *sensor) -{ - struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); - struct smiapp_pll_limits lim = { - .min_pre_pll_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_PRE_PLL_CLK_DIV], - .max_pre_pll_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_PRE_PLL_CLK_DIV], - .min_pll_ip_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_PLL_IP_FREQ_HZ], - .max_pll_ip_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_PLL_IP_FREQ_HZ], - .min_pll_multiplier = sensor->limits[SMIAPP_LIMIT_MIN_PLL_MULTIPLIER], - .max_pll_multiplier = sensor->limits[SMIAPP_LIMIT_MAX_PLL_MULTIPLIER], - .min_pll_op_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_PLL_OP_FREQ_HZ], - .max_pll_op_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_PLL_OP_FREQ_HZ], - - .min_op_sys_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_OP_SYS_CLK_DIV], - .max_op_sys_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_OP_SYS_CLK_DIV], - .min_op_pix_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_OP_PIX_CLK_DIV], - .max_op_pix_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_OP_PIX_CLK_DIV], - .min_op_sys_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_OP_SYS_CLK_FREQ_HZ], - .max_op_sys_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_OP_SYS_CLK_FREQ_HZ], - .min_op_pix_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_OP_PIX_CLK_FREQ_HZ], - .max_op_pix_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_OP_PIX_CLK_FREQ_HZ], - - .min_vt_sys_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_VT_SYS_CLK_DIV], - .max_vt_sys_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_VT_SYS_CLK_DIV], - .min_vt_pix_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_VT_PIX_CLK_DIV], - .max_vt_pix_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_VT_PIX_CLK_DIV], - .min_vt_sys_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_VT_SYS_CLK_FREQ_HZ], - .max_vt_sys_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_VT_SYS_CLK_FREQ_HZ], - .min_vt_pix_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_VT_PIX_CLK_FREQ_HZ], - .max_vt_pix_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_VT_PIX_CLK_FREQ_HZ], - - .min_line_length_pck_bin = sensor->limits[SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK_BIN], - .min_line_length_pck = sensor->limits[SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK], - }; - struct smiapp_pll *pll = &sensor->pll; - int rval; - - memset(&sensor->pll, 0, sizeof(sensor->pll)); - - pll->lanes = sensor->platform_data->lanes; - pll->ext_clk_freq_hz = sensor->platform_data->ext_clk; - - if (sensor->minfo.smiapp_profile == SMIAPP_PROFILE_0) { - /* - * Fill in operational clock divisors limits from the - * video timing ones. On profile 0 sensors the - * requirements regarding them are essentially the - * same as on VT ones. - */ - lim.min_op_sys_clk_div = lim.min_vt_sys_clk_div; - lim.max_op_sys_clk_div = lim.max_vt_sys_clk_div; - lim.min_op_pix_clk_div = lim.min_vt_pix_clk_div; - lim.max_op_pix_clk_div = lim.max_vt_pix_clk_div; - lim.min_op_sys_clk_freq_hz = lim.min_vt_sys_clk_freq_hz; - lim.max_op_sys_clk_freq_hz = lim.max_vt_sys_clk_freq_hz; - lim.min_op_pix_clk_freq_hz = lim.min_vt_pix_clk_freq_hz; - lim.max_op_pix_clk_freq_hz = lim.max_vt_pix_clk_freq_hz; - /* Profile 0 sensors have no separate OP clock branch. */ - pll->flags |= SMIAPP_PLL_FLAG_NO_OP_CLOCKS; - } - - if (smiapp_needs_quirk(sensor, - SMIAPP_QUIRK_FLAG_OP_PIX_CLOCK_PER_LANE)) - pll->flags |= SMIAPP_PLL_FLAG_OP_PIX_CLOCK_PER_LANE; - - pll->binning_horizontal = sensor->binning_horizontal; - pll->binning_vertical = sensor->binning_vertical; - pll->link_freq = - sensor->link_freq->qmenu_int[sensor->link_freq->val]; - pll->scale_m = sensor->scale_m; - pll->scale_n = sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN]; - pll->bits_per_pixel = sensor->csi_format->compressed; - - rval = smiapp_pll_calculate(&client->dev, &lim, pll); - if (rval < 0) - return rval; - - sensor->pixel_rate_parray->cur.val64 = pll->vt_pix_clk_freq_hz; - sensor->pixel_rate_csi->cur.val64 = pll->pixel_rate_csi; - - return 0; -} - - -/* - * - * V4L2 Controls handling - * - */ - -static void __smiapp_update_exposure_limits(struct smiapp_sensor *sensor) -{ - struct v4l2_ctrl *ctrl = sensor->exposure; - int max; - - max = sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].height - + sensor->vblank->val - - sensor->limits[SMIAPP_LIMIT_COARSE_INTEGRATION_TIME_MAX_MARGIN]; - - ctrl->maximum = max; - if (ctrl->default_value > max) - ctrl->default_value = max; - if (ctrl->val > max) - ctrl->val = max; - if (ctrl->cur.val > max) - ctrl->cur.val = max; -} - -/* - * Order matters. - * - * 1. Bits-per-pixel, descending. - * 2. Bits-per-pixel compressed, descending. - * 3. Pixel order, same as in pixel_order_str. Formats for all four pixel - * orders must be defined. - */ -static const struct smiapp_csi_data_format smiapp_csi_data_formats[] = { - { V4L2_MBUS_FMT_SGRBG12_1X12, 12, 12, SMIAPP_PIXEL_ORDER_GRBG, }, - { V4L2_MBUS_FMT_SRGGB12_1X12, 12, 12, SMIAPP_PIXEL_ORDER_RGGB, }, - { V4L2_MBUS_FMT_SBGGR12_1X12, 12, 12, SMIAPP_PIXEL_ORDER_BGGR, }, - { V4L2_MBUS_FMT_SGBRG12_1X12, 12, 12, SMIAPP_PIXEL_ORDER_GBRG, }, - { V4L2_MBUS_FMT_SGRBG10_1X10, 10, 10, SMIAPP_PIXEL_ORDER_GRBG, }, - { V4L2_MBUS_FMT_SRGGB10_1X10, 10, 10, SMIAPP_PIXEL_ORDER_RGGB, }, - { V4L2_MBUS_FMT_SBGGR10_1X10, 10, 10, SMIAPP_PIXEL_ORDER_BGGR, }, - { V4L2_MBUS_FMT_SGBRG10_1X10, 10, 10, SMIAPP_PIXEL_ORDER_GBRG, }, - { V4L2_MBUS_FMT_SGRBG10_DPCM8_1X8, 10, 8, SMIAPP_PIXEL_ORDER_GRBG, }, - { V4L2_MBUS_FMT_SRGGB10_DPCM8_1X8, 10, 8, SMIAPP_PIXEL_ORDER_RGGB, }, - { V4L2_MBUS_FMT_SBGGR10_DPCM8_1X8, 10, 8, SMIAPP_PIXEL_ORDER_BGGR, }, - { V4L2_MBUS_FMT_SGBRG10_DPCM8_1X8, 10, 8, SMIAPP_PIXEL_ORDER_GBRG, }, - { V4L2_MBUS_FMT_SGRBG8_1X8, 8, 8, SMIAPP_PIXEL_ORDER_GRBG, }, - { V4L2_MBUS_FMT_SRGGB8_1X8, 8, 8, SMIAPP_PIXEL_ORDER_RGGB, }, - { V4L2_MBUS_FMT_SBGGR8_1X8, 8, 8, SMIAPP_PIXEL_ORDER_BGGR, }, - { V4L2_MBUS_FMT_SGBRG8_1X8, 8, 8, SMIAPP_PIXEL_ORDER_GBRG, }, -}; - -const char *pixel_order_str[] = { "GRBG", "RGGB", "BGGR", "GBRG" }; - -#define to_csi_format_idx(fmt) (((unsigned long)(fmt) \ - - (unsigned long)smiapp_csi_data_formats) \ - / sizeof(*smiapp_csi_data_formats)) - -static u32 smiapp_pixel_order(struct smiapp_sensor *sensor) -{ - struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); - int flip = 0; - - if (sensor->hflip) { - if (sensor->hflip->val) - flip |= SMIAPP_IMAGE_ORIENTATION_HFLIP; - - if (sensor->vflip->val) - flip |= SMIAPP_IMAGE_ORIENTATION_VFLIP; - } - - flip ^= sensor->hvflip_inv_mask; - - dev_dbg(&client->dev, "flip %d\n", flip); - return sensor->default_pixel_order ^ flip; -} - -static void smiapp_update_mbus_formats(struct smiapp_sensor *sensor) -{ - struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); - unsigned int csi_format_idx = - to_csi_format_idx(sensor->csi_format) & ~3; - unsigned int internal_csi_format_idx = - to_csi_format_idx(sensor->internal_csi_format) & ~3; - unsigned int pixel_order = smiapp_pixel_order(sensor); - - sensor->mbus_frame_fmts = - sensor->default_mbus_frame_fmts << pixel_order; - sensor->csi_format = - &smiapp_csi_data_formats[csi_format_idx + pixel_order]; - sensor->internal_csi_format = - &smiapp_csi_data_formats[internal_csi_format_idx - + pixel_order]; - - BUG_ON(max(internal_csi_format_idx, csi_format_idx) + pixel_order - >= ARRAY_SIZE(smiapp_csi_data_formats)); - BUG_ON(min(internal_csi_format_idx, csi_format_idx) < 0); - - dev_dbg(&client->dev, "new pixel order %s\n", - pixel_order_str[pixel_order]); -} - -static int smiapp_set_ctrl(struct v4l2_ctrl *ctrl) -{ - struct smiapp_sensor *sensor = - container_of(ctrl->handler, struct smiapp_subdev, ctrl_handler) - ->sensor; - u32 orient = 0; - int exposure; - int rval; - - switch (ctrl->id) { - case V4L2_CID_ANALOGUE_GAIN: - return smiapp_write( - sensor, - SMIAPP_REG_U16_ANALOGUE_GAIN_CODE_GLOBAL, ctrl->val); - - case V4L2_CID_EXPOSURE: - return smiapp_write( - sensor, - SMIAPP_REG_U16_COARSE_INTEGRATION_TIME, ctrl->val); - - case V4L2_CID_HFLIP: - case V4L2_CID_VFLIP: - if (sensor->streaming) - return -EBUSY; - - if (sensor->hflip->val) - orient |= SMIAPP_IMAGE_ORIENTATION_HFLIP; - - if (sensor->vflip->val) - orient |= SMIAPP_IMAGE_ORIENTATION_VFLIP; - - orient ^= sensor->hvflip_inv_mask; - rval = smiapp_write(sensor, - SMIAPP_REG_U8_IMAGE_ORIENTATION, - orient); - if (rval < 0) - return rval; - - smiapp_update_mbus_formats(sensor); - - return 0; - - case V4L2_CID_VBLANK: - exposure = sensor->exposure->val; - - __smiapp_update_exposure_limits(sensor); - - if (exposure > sensor->exposure->maximum) { - sensor->exposure->val = - sensor->exposure->maximum; - rval = smiapp_set_ctrl( - sensor->exposure); - if (rval < 0) - return rval; - } - - return smiapp_write( - sensor, SMIAPP_REG_U16_FRAME_LENGTH_LINES, - sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].height - + ctrl->val); - - case V4L2_CID_HBLANK: - return smiapp_write( - sensor, SMIAPP_REG_U16_LINE_LENGTH_PCK, - sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].width - + ctrl->val); - - case V4L2_CID_LINK_FREQ: - if (sensor->streaming) - return -EBUSY; - - return smiapp_pll_update(sensor); - - default: - return -EINVAL; - } -} - -static const struct v4l2_ctrl_ops smiapp_ctrl_ops = { - .s_ctrl = smiapp_set_ctrl, -}; - -static int smiapp_init_controls(struct smiapp_sensor *sensor) -{ - struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); - unsigned int max; - int rval; - - rval = v4l2_ctrl_handler_init(&sensor->pixel_array->ctrl_handler, 7); - if (rval) - return rval; - sensor->pixel_array->ctrl_handler.lock = &sensor->mutex; - - sensor->analog_gain = v4l2_ctrl_new_std( - &sensor->pixel_array->ctrl_handler, &smiapp_ctrl_ops, - V4L2_CID_ANALOGUE_GAIN, - sensor->limits[SMIAPP_LIMIT_ANALOGUE_GAIN_CODE_MIN], - sensor->limits[SMIAPP_LIMIT_ANALOGUE_GAIN_CODE_MAX], - max(sensor->limits[SMIAPP_LIMIT_ANALOGUE_GAIN_CODE_STEP], 1U), - sensor->limits[SMIAPP_LIMIT_ANALOGUE_GAIN_CODE_MIN]); - - /* Exposure limits will be updated soon, use just something here. */ - sensor->exposure = v4l2_ctrl_new_std( - &sensor->pixel_array->ctrl_handler, &smiapp_ctrl_ops, - V4L2_CID_EXPOSURE, 0, 0, 1, 0); - - sensor->hflip = v4l2_ctrl_new_std( - &sensor->pixel_array->ctrl_handler, &smiapp_ctrl_ops, - V4L2_CID_HFLIP, 0, 1, 1, 0); - sensor->vflip = v4l2_ctrl_new_std( - &sensor->pixel_array->ctrl_handler, &smiapp_ctrl_ops, - V4L2_CID_VFLIP, 0, 1, 1, 0); - - sensor->vblank = v4l2_ctrl_new_std( - &sensor->pixel_array->ctrl_handler, &smiapp_ctrl_ops, - V4L2_CID_VBLANK, 0, 1, 1, 0); - - if (sensor->vblank) - sensor->vblank->flags |= V4L2_CTRL_FLAG_UPDATE; - - sensor->hblank = v4l2_ctrl_new_std( - &sensor->pixel_array->ctrl_handler, &smiapp_ctrl_ops, - V4L2_CID_HBLANK, 0, 1, 1, 0); - - if (sensor->hblank) - sensor->hblank->flags |= V4L2_CTRL_FLAG_UPDATE; - - sensor->pixel_rate_parray = v4l2_ctrl_new_std( - &sensor->pixel_array->ctrl_handler, &smiapp_ctrl_ops, - V4L2_CID_PIXEL_RATE, 0, 0, 1, 0); - - if (sensor->pixel_array->ctrl_handler.error) { - dev_err(&client->dev, - "pixel array controls initialization failed (%d)\n", - sensor->pixel_array->ctrl_handler.error); - rval = sensor->pixel_array->ctrl_handler.error; - goto error; - } - - sensor->pixel_array->sd.ctrl_handler = - &sensor->pixel_array->ctrl_handler; - - v4l2_ctrl_cluster(2, &sensor->hflip); - - rval = v4l2_ctrl_handler_init(&sensor->src->ctrl_handler, 0); - if (rval) - goto error; - sensor->src->ctrl_handler.lock = &sensor->mutex; - - for (max = 0; sensor->platform_data->op_sys_clock[max + 1]; max++); - - sensor->link_freq = v4l2_ctrl_new_int_menu( - &sensor->src->ctrl_handler, &smiapp_ctrl_ops, - V4L2_CID_LINK_FREQ, max, 0, - sensor->platform_data->op_sys_clock); - - sensor->pixel_rate_csi = v4l2_ctrl_new_std( - &sensor->src->ctrl_handler, &smiapp_ctrl_ops, - V4L2_CID_PIXEL_RATE, 0, 0, 1, 0); - - if (sensor->src->ctrl_handler.error) { - dev_err(&client->dev, - "src controls initialization failed (%d)\n", - sensor->src->ctrl_handler.error); - rval = sensor->src->ctrl_handler.error; - goto error; - } - - sensor->src->sd.ctrl_handler = - &sensor->src->ctrl_handler; - - return 0; - -error: - v4l2_ctrl_handler_free(&sensor->pixel_array->ctrl_handler); - v4l2_ctrl_handler_free(&sensor->src->ctrl_handler); - - return rval; -} - -static void smiapp_free_controls(struct smiapp_sensor *sensor) -{ - unsigned int i; - - for (i = 0; i < sensor->ssds_used; i++) - v4l2_ctrl_handler_free(&sensor->ssds[i].ctrl_handler); -} - -static int smiapp_get_limits(struct smiapp_sensor *sensor, int const *limit, - unsigned int n) -{ - struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); - unsigned int i; - u32 val; - int rval; - - for (i = 0; i < n; i++) { - rval = smiapp_read( - sensor, smiapp_reg_limits[limit[i]].addr, &val); - if (rval) - return rval; - sensor->limits[limit[i]] = val; - dev_dbg(&client->dev, "0x%8.8x \"%s\" = %d, 0x%x\n", - smiapp_reg_limits[limit[i]].addr, - smiapp_reg_limits[limit[i]].what, val, val); - } - - return 0; -} - -static int smiapp_get_all_limits(struct smiapp_sensor *sensor) -{ - unsigned int i; - int rval; - - for (i = 0; i < SMIAPP_LIMIT_LAST; i++) { - rval = smiapp_get_limits(sensor, &i, 1); - if (rval < 0) - return rval; - } - - if (sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN] == 0) - smiapp_replace_limit(sensor, SMIAPP_LIMIT_SCALER_N_MIN, 16); - - return 0; -} - -static int smiapp_get_limits_binning(struct smiapp_sensor *sensor) -{ - struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); - static u32 const limits[] = { - SMIAPP_LIMIT_MIN_FRAME_LENGTH_LINES_BIN, - SMIAPP_LIMIT_MAX_FRAME_LENGTH_LINES_BIN, - SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK_BIN, - SMIAPP_LIMIT_MAX_LINE_LENGTH_PCK_BIN, - SMIAPP_LIMIT_MIN_LINE_BLANKING_PCK_BIN, - SMIAPP_LIMIT_FINE_INTEGRATION_TIME_MIN_BIN, - SMIAPP_LIMIT_FINE_INTEGRATION_TIME_MAX_MARGIN_BIN, - }; - static u32 const limits_replace[] = { - SMIAPP_LIMIT_MIN_FRAME_LENGTH_LINES, - SMIAPP_LIMIT_MAX_FRAME_LENGTH_LINES, - SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK, - SMIAPP_LIMIT_MAX_LINE_LENGTH_PCK, - SMIAPP_LIMIT_MIN_LINE_BLANKING_PCK, - SMIAPP_LIMIT_FINE_INTEGRATION_TIME_MIN, - SMIAPP_LIMIT_FINE_INTEGRATION_TIME_MAX_MARGIN, - }; - unsigned int i; - int rval; - - if (sensor->limits[SMIAPP_LIMIT_BINNING_CAPABILITY] == - SMIAPP_BINNING_CAPABILITY_NO) { - for (i = 0; i < ARRAY_SIZE(limits); i++) - sensor->limits[limits[i]] = - sensor->limits[limits_replace[i]]; - - return 0; - } - - rval = smiapp_get_limits(sensor, limits, ARRAY_SIZE(limits)); - if (rval < 0) - return rval; - - /* - * Sanity check whether the binning limits are valid. If not, - * use the non-binning ones. - */ - if (sensor->limits[SMIAPP_LIMIT_MIN_FRAME_LENGTH_LINES_BIN] - && sensor->limits[SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK_BIN] - && sensor->limits[SMIAPP_LIMIT_MIN_LINE_BLANKING_PCK_BIN]) - return 0; - - for (i = 0; i < ARRAY_SIZE(limits); i++) { - dev_dbg(&client->dev, - "replace limit 0x%8.8x \"%s\" = %d, 0x%x\n", - smiapp_reg_limits[limits[i]].addr, - smiapp_reg_limits[limits[i]].what, - sensor->limits[limits_replace[i]], - sensor->limits[limits_replace[i]]); - sensor->limits[limits[i]] = - sensor->limits[limits_replace[i]]; - } - - return 0; -} - -static int smiapp_get_mbus_formats(struct smiapp_sensor *sensor) -{ - struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); - unsigned int type, n; - unsigned int i, pixel_order; - int rval; - - rval = smiapp_read( - sensor, SMIAPP_REG_U8_DATA_FORMAT_MODEL_TYPE, &type); - if (rval) - return rval; - - dev_dbg(&client->dev, "data_format_model_type %d\n", type); - - rval = smiapp_read(sensor, SMIAPP_REG_U8_PIXEL_ORDER, - &pixel_order); - if (rval) - return rval; - - if (pixel_order >= ARRAY_SIZE(pixel_order_str)) { - dev_dbg(&client->dev, "bad pixel order %d\n", pixel_order); - return -EINVAL; - } - - dev_dbg(&client->dev, "pixel order %d (%s)\n", pixel_order, - pixel_order_str[pixel_order]); - - switch (type) { - case SMIAPP_DATA_FORMAT_MODEL_TYPE_NORMAL: - n = SMIAPP_DATA_FORMAT_MODEL_TYPE_NORMAL_N; - break; - case SMIAPP_DATA_FORMAT_MODEL_TYPE_EXTENDED: - n = SMIAPP_DATA_FORMAT_MODEL_TYPE_EXTENDED_N; - break; - default: - return -EINVAL; - } - - sensor->default_pixel_order = pixel_order; - sensor->mbus_frame_fmts = 0; - - for (i = 0; i < n; i++) { - unsigned int fmt, j; - - rval = smiapp_read( - sensor, - SMIAPP_REG_U16_DATA_FORMAT_DESCRIPTOR(i), &fmt); - if (rval) - return rval; - - dev_dbg(&client->dev, "bpp %d, compressed %d\n", - fmt >> 8, (u8)fmt); - - for (j = 0; j < ARRAY_SIZE(smiapp_csi_data_formats); j++) { - const struct smiapp_csi_data_format *f = - &smiapp_csi_data_formats[j]; - - if (f->pixel_order != SMIAPP_PIXEL_ORDER_GRBG) - continue; - - if (f->width != fmt >> 8 || f->compressed != (u8)fmt) - continue; - - dev_dbg(&client->dev, "jolly good! %d\n", j); - - sensor->default_mbus_frame_fmts |= 1 << j; - if (!sensor->csi_format) { - sensor->csi_format = f; - sensor->internal_csi_format = f; - } - } - } - - if (!sensor->csi_format) { - dev_err(&client->dev, "no supported mbus code found\n"); - return -EINVAL; - } - - smiapp_update_mbus_formats(sensor); - - return 0; -} - -static void smiapp_update_blanking(struct smiapp_sensor *sensor) -{ - struct v4l2_ctrl *vblank = sensor->vblank; - struct v4l2_ctrl *hblank = sensor->hblank; - - vblank->minimum = - max_t(int, - sensor->limits[SMIAPP_LIMIT_MIN_FRAME_BLANKING_LINES], - sensor->limits[SMIAPP_LIMIT_MIN_FRAME_LENGTH_LINES_BIN] - - sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].height); - vblank->maximum = - sensor->limits[SMIAPP_LIMIT_MAX_FRAME_LENGTH_LINES_BIN] - - sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].height; - - vblank->val = clamp_t(int, vblank->val, - vblank->minimum, vblank->maximum); - vblank->default_value = vblank->minimum; - vblank->val = vblank->val; - vblank->cur.val = vblank->val; - - hblank->minimum = - max_t(int, - sensor->limits[SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK_BIN] - - sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].width, - sensor->limits[SMIAPP_LIMIT_MIN_LINE_BLANKING_PCK_BIN]); - hblank->maximum = - sensor->limits[SMIAPP_LIMIT_MAX_LINE_LENGTH_PCK_BIN] - - sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].width; - - hblank->val = clamp_t(int, hblank->val, - hblank->minimum, hblank->maximum); - hblank->default_value = hblank->minimum; - hblank->val = hblank->val; - hblank->cur.val = hblank->val; - - __smiapp_update_exposure_limits(sensor); -} - -static int smiapp_update_mode(struct smiapp_sensor *sensor) -{ - struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); - unsigned int binning_mode; - int rval; - - dev_dbg(&client->dev, "frame size: %dx%d\n", - sensor->src->crop[SMIAPP_PAD_SRC].width, - sensor->src->crop[SMIAPP_PAD_SRC].height); - dev_dbg(&client->dev, "csi format width: %d\n", - sensor->csi_format->width); - - /* Binning has to be set up here; it affects limits */ - if (sensor->binning_horizontal == 1 && - sensor->binning_vertical == 1) { - binning_mode = 0; - } else { - u8 binning_type = - (sensor->binning_horizontal << 4) - | sensor->binning_vertical; - - rval = smiapp_write( - sensor, SMIAPP_REG_U8_BINNING_TYPE, binning_type); - if (rval < 0) - return rval; - - binning_mode = 1; - } - rval = smiapp_write(sensor, SMIAPP_REG_U8_BINNING_MODE, binning_mode); - if (rval < 0) - return rval; - - /* Get updated limits due to binning */ - rval = smiapp_get_limits_binning(sensor); - if (rval < 0) - return rval; - - rval = smiapp_pll_update(sensor); - if (rval < 0) - return rval; - - /* Output from pixel array, including blanking */ - smiapp_update_blanking(sensor); - - dev_dbg(&client->dev, "vblank\t\t%d\n", sensor->vblank->val); - dev_dbg(&client->dev, "hblank\t\t%d\n", sensor->hblank->val); - - dev_dbg(&client->dev, "real timeperframe\t100/%d\n", - sensor->pll.vt_pix_clk_freq_hz / - ((sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].width - + sensor->hblank->val) * - (sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].height - + sensor->vblank->val) / 100)); - - return 0; -} - -/* - * - * SMIA++ NVM handling - * - */ -static int smiapp_read_nvm(struct smiapp_sensor *sensor, - unsigned char *nvm) -{ - u32 i, s, p, np, v; - int rval = 0, rval2; - - np = sensor->nvm_size / SMIAPP_NVM_PAGE_SIZE; - for (p = 0; p < np; p++) { - rval = smiapp_write( - sensor, - SMIAPP_REG_U8_DATA_TRANSFER_IF_1_PAGE_SELECT, p); - if (rval) - goto out; - - rval = smiapp_write(sensor, - SMIAPP_REG_U8_DATA_TRANSFER_IF_1_CTRL, - SMIAPP_DATA_TRANSFER_IF_1_CTRL_EN | - SMIAPP_DATA_TRANSFER_IF_1_CTRL_RD_EN); - if (rval) - goto out; - - for (i = 0; i < 1000; i++) { - rval = smiapp_read( - sensor, - SMIAPP_REG_U8_DATA_TRANSFER_IF_1_STATUS, &s); - - if (rval) - goto out; - - if (s & SMIAPP_DATA_TRANSFER_IF_1_STATUS_RD_READY) - break; - - if (--i == 0) { - rval = -ETIMEDOUT; - goto out; - } - - } - - for (i = 0; i < SMIAPP_NVM_PAGE_SIZE; i++) { - rval = smiapp_read( - sensor, - SMIAPP_REG_U8_DATA_TRANSFER_IF_1_DATA_0 + i, - &v); - if (rval) - goto out; - - *nvm++ = v; - } - } - -out: - rval2 = smiapp_write(sensor, SMIAPP_REG_U8_DATA_TRANSFER_IF_1_CTRL, 0); - if (rval < 0) - return rval; - else - return rval2; -} - -/* - * - * SMIA++ CCI address control - * - */ -static int smiapp_change_cci_addr(struct smiapp_sensor *sensor) -{ - struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); - int rval; - u32 val; - - client->addr = sensor->platform_data->i2c_addr_dfl; - - rval = smiapp_write(sensor, - SMIAPP_REG_U8_CCI_ADDRESS_CONTROL, - sensor->platform_data->i2c_addr_alt << 1); - if (rval) - return rval; - - client->addr = sensor->platform_data->i2c_addr_alt; - - /* verify addr change went ok */ - rval = smiapp_read(sensor, SMIAPP_REG_U8_CCI_ADDRESS_CONTROL, &val); - if (rval) - return rval; - - if (val != sensor->platform_data->i2c_addr_alt << 1) - return -ENODEV; - - return 0; -} - -/* - * - * SMIA++ Mode Control - * - */ -static int smiapp_setup_flash_strobe(struct smiapp_sensor *sensor) -{ - struct smiapp_flash_strobe_parms *strobe_setup; - unsigned int ext_freq = sensor->platform_data->ext_clk; - u32 tmp; - u32 strobe_adjustment; - u32 strobe_width_high_rs; - int rval; - - strobe_setup = sensor->platform_data->strobe_setup; - - /* - * How to calculate registers related to strobe length. Please - * do not change, or if you do at least know what you're - * doing. :-) - * - * Sakari Ailus <sakari.ailus@maxwell.research.nokia.com> 2010-10-25 - * - * flash_strobe_length [us] / 10^6 = (tFlash_strobe_width_ctrl - * / EXTCLK freq [Hz]) * flash_strobe_adjustment - * - * tFlash_strobe_width_ctrl E N, [1 - 0xffff] - * flash_strobe_adjustment E N, [1 - 0xff] - * - * The formula above is written as below to keep it on one - * line: - * - * l / 10^6 = w / e * a - * - * Let's mark w * a by x: - * - * x = w * a - * - * Thus, we get: - * - * x = l * e / 10^6 - * - * The strobe width must be at least as long as requested, - * thus rounding upwards is needed. - * - * x = (l * e + 10^6 - 1) / 10^6 - * ----------------------------- - * - * Maximum possible accuracy is wanted at all times. Thus keep - * a as small as possible. - * - * Calculate a, assuming maximum w, with rounding upwards: - * - * a = (x + (2^16 - 1) - 1) / (2^16 - 1) - * ------------------------------------- - * - * Thus, we also get w, with that a, with rounding upwards: - * - * w = (x + a - 1) / a - * ------------------- - * - * To get limits: - * - * x E [1, (2^16 - 1) * (2^8 - 1)] - * - * Substituting maximum x to the original formula (with rounding), - * the maximum l is thus - * - * (2^16 - 1) * (2^8 - 1) * 10^6 = l * e + 10^6 - 1 - * - * l = (10^6 * (2^16 - 1) * (2^8 - 1) - 10^6 + 1) / e - * -------------------------------------------------- - * - * flash_strobe_length must be clamped between 1 and - * (10^6 * (2^16 - 1) * (2^8 - 1) - 10^6 + 1) / EXTCLK freq. - * - * Then, - * - * flash_strobe_adjustment = ((flash_strobe_length * - * EXTCLK freq + 10^6 - 1) / 10^6 + (2^16 - 1) - 1) / (2^16 - 1) - * - * tFlash_strobe_width_ctrl = ((flash_strobe_length * - * EXTCLK freq + 10^6 - 1) / 10^6 + - * flash_strobe_adjustment - 1) / flash_strobe_adjustment - */ - tmp = div_u64(1000000ULL * ((1 << 16) - 1) * ((1 << 8) - 1) - - 1000000 + 1, ext_freq); - strobe_setup->strobe_width_high_us = - clamp_t(u32, strobe_setup->strobe_width_high_us, 1, tmp); - - tmp = div_u64(((u64)strobe_setup->strobe_width_high_us * (u64)ext_freq + - 1000000 - 1), 1000000ULL); - strobe_adjustment = (tmp + (1 << 16) - 1 - 1) / ((1 << 16) - 1); - strobe_width_high_rs = (tmp + strobe_adjustment - 1) / - strobe_adjustment; - - rval = smiapp_write(sensor, SMIAPP_REG_U8_FLASH_MODE_RS, - strobe_setup->mode); - if (rval < 0) - goto out; - - rval = smiapp_write(sensor, SMIAPP_REG_U8_FLASH_STROBE_ADJUSTMENT, - strobe_adjustment); - if (rval < 0) - goto out; - - rval = smiapp_write( - sensor, SMIAPP_REG_U16_TFLASH_STROBE_WIDTH_HIGH_RS_CTRL, - strobe_width_high_rs); - if (rval < 0) - goto out; - - rval = smiapp_write(sensor, SMIAPP_REG_U16_TFLASH_STROBE_DELAY_RS_CTRL, - strobe_setup->strobe_delay); - if (rval < 0) - goto out; - - rval = smiapp_write(sensor, SMIAPP_REG_U16_FLASH_STROBE_START_POINT, - strobe_setup->stobe_start_point); - if (rval < 0) - goto out; - - rval = smiapp_write(sensor, SMIAPP_REG_U8_FLASH_TRIGGER_RS, - strobe_setup->trigger); - -out: - sensor->platform_data->strobe_setup->trigger = 0; - - return rval; -} - -/* ----------------------------------------------------------------------------- - * Power management - */ - -static int smiapp_power_on(struct smiapp_sensor *sensor) -{ - struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); - unsigned int sleep; - int rval; - - rval = regulator_enable(sensor->vana); - if (rval) { - dev_err(&client->dev, "failed to enable vana regulator\n"); - return rval; - } - usleep_range(1000, 1000); - - if (sensor->platform_data->set_xclk) - rval = sensor->platform_data->set_xclk( - &sensor->src->sd, sensor->platform_data->ext_clk); - else - rval = clk_enable(sensor->ext_clk); - if (rval < 0) { - dev_dbg(&client->dev, "failed to set xclk\n"); - goto out_xclk_fail; - } - usleep_range(1000, 1000); - - if (sensor->platform_data->xshutdown != SMIAPP_NO_XSHUTDOWN) - gpio_set_value(sensor->platform_data->xshutdown, 1); - - sleep = SMIAPP_RESET_DELAY(sensor->platform_data->ext_clk); - usleep_range(sleep, sleep); - - /* - * Failures to respond to the address change command have been noticed. - * Those failures seem to be caused by the sensor requiring a longer - * boot time than advertised. An additional 10ms delay seems to work - * around the issue, but the SMIA++ I2C write retry hack makes the delay - * unnecessary. The failures need to be investigated to find a proper - * fix, and a delay will likely need to be added here if the I2C write - * retry hack is reverted before the root cause of the boot time issue - * is found. - */ - - if (sensor->platform_data->i2c_addr_alt) { - rval = smiapp_change_cci_addr(sensor); - if (rval) { - dev_err(&client->dev, "cci address change error\n"); - goto out_cci_addr_fail; - } - } - - rval = smiapp_write(sensor, SMIAPP_REG_U8_SOFTWARE_RESET, - SMIAPP_SOFTWARE_RESET); - if (rval < 0) { - dev_err(&client->dev, "software reset failed\n"); - goto out_cci_addr_fail; - } - - if (sensor->platform_data->i2c_addr_alt) { - rval = smiapp_change_cci_addr(sensor); - if (rval) { - dev_err(&client->dev, "cci address change error\n"); - goto out_cci_addr_fail; - } - } - - rval = smiapp_write(sensor, SMIAPP_REG_U16_COMPRESSION_MODE, - SMIAPP_COMPRESSION_MODE_SIMPLE_PREDICTOR); - if (rval) { - dev_err(&client->dev, "compression mode set failed\n"); - goto out_cci_addr_fail; - } - - rval = smiapp_write( - sensor, SMIAPP_REG_U16_EXTCLK_FREQUENCY_MHZ, - sensor->platform_data->ext_clk / (1000000 / (1 << 8))); - if (rval) { - dev_err(&client->dev, "extclk frequency set failed\n"); - goto out_cci_addr_fail; - } - - rval = smiapp_write(sensor, SMIAPP_REG_U8_CSI_LANE_MODE, - sensor->platform_data->lanes - 1); - if (rval) { - dev_err(&client->dev, "csi lane mode set failed\n"); - goto out_cci_addr_fail; - } - - rval = smiapp_write(sensor, SMIAPP_REG_U8_FAST_STANDBY_CTRL, - SMIAPP_FAST_STANDBY_CTRL_IMMEDIATE); - if (rval) { - dev_err(&client->dev, "fast standby set failed\n"); - goto out_cci_addr_fail; - } - - rval = smiapp_write(sensor, SMIAPP_REG_U8_CSI_SIGNALLING_MODE, - sensor->platform_data->csi_signalling_mode); - if (rval) { - dev_err(&client->dev, "csi signalling mode set failed\n"); - goto out_cci_addr_fail; - } - - /* DPHY control done by sensor based on requested link rate */ - rval = smiapp_write(sensor, SMIAPP_REG_U8_DPHY_CTRL, - SMIAPP_DPHY_CTRL_UI); - if (rval < 0) - return rval; - - rval = smiapp_call_quirk(sensor, post_poweron); - if (rval) { - dev_err(&client->dev, "post_poweron quirks failed\n"); - goto out_cci_addr_fail; - } - - /* Are we still initialising...? If yes, return here. */ - if (!sensor->pixel_array) - return 0; - - rval = v4l2_ctrl_handler_setup( - &sensor->pixel_array->ctrl_handler); - if (rval) - goto out_cci_addr_fail; - - rval = v4l2_ctrl_handler_setup(&sensor->src->ctrl_handler); - if (rval) - goto out_cci_addr_fail; - - mutex_lock(&sensor->mutex); - rval = smiapp_update_mode(sensor); - mutex_unlock(&sensor->mutex); - if (rval < 0) - goto out_cci_addr_fail; - - return 0; - -out_cci_addr_fail: - if (sensor->platform_data->xshutdown != SMIAPP_NO_XSHUTDOWN) - gpio_set_value(sensor->platform_data->xshutdown, 0); - if (sensor->platform_data->set_xclk) - sensor->platform_data->set_xclk(&sensor->src->sd, 0); - else - clk_disable(sensor->ext_clk); - -out_xclk_fail: - regulator_disable(sensor->vana); - return rval; -} - -static void smiapp_power_off(struct smiapp_sensor *sensor) -{ - /* - * Currently power/clock to lens are enable/disabled separately - * but they are essentially the same signals. So if the sensor is - * powered off while the lens is powered on the sensor does not - * really see a power off and next time the cci address change - * will fail. So do a soft reset explicitly here. - */ - if (sensor->platform_data->i2c_addr_alt) - smiapp_write(sensor, - SMIAPP_REG_U8_SOFTWARE_RESET, - SMIAPP_SOFTWARE_RESET); - - if (sensor->platform_data->xshutdown != SMIAPP_NO_XSHUTDOWN) - gpio_set_value(sensor->platform_data->xshutdown, 0); - if (sensor->platform_data->set_xclk) - sensor->platform_data->set_xclk(&sensor->src->sd, 0); - else - clk_disable(sensor->ext_clk); - usleep_range(5000, 5000); - regulator_disable(sensor->vana); - sensor->streaming = 0; -} - -static int smiapp_set_power(struct v4l2_subdev *subdev, int on) -{ - struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); - int ret = 0; - - mutex_lock(&sensor->power_mutex); - - /* - * If the power count is modified from 0 to != 0 or from != 0 - * to 0, update the power state. - */ - if (!sensor->power_count == !on) - goto out; - - if (on) { - /* Power on and perform initialisation. */ - ret = smiapp_power_on(sensor); - if (ret < 0) - goto out; - } else { - smiapp_power_off(sensor); - } - - /* Update the power count. */ - sensor->power_count += on ? 1 : -1; - WARN_ON(sensor->power_count < 0); - -out: - mutex_unlock(&sensor->power_mutex); - return ret; -} - -/* ----------------------------------------------------------------------------- - * Video stream management - */ - -static int smiapp_start_streaming(struct smiapp_sensor *sensor) -{ - struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); - int rval; - - mutex_lock(&sensor->mutex); - - rval = smiapp_write(sensor, SMIAPP_REG_U16_CSI_DATA_FORMAT, - (sensor->csi_format->width << 8) | - sensor->csi_format->compressed); - if (rval) - goto out; - - rval = smiapp_pll_configure(sensor); - if (rval) - goto out; - - /* Analog crop start coordinates */ - rval = smiapp_write(sensor, SMIAPP_REG_U16_X_ADDR_START, - sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].left); - if (rval < 0) - goto out; - - rval = smiapp_write(sensor, SMIAPP_REG_U16_Y_ADDR_START, - sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].top); - if (rval < 0) - goto out; - - /* Analog crop end coordinates */ - rval = smiapp_write( - sensor, SMIAPP_REG_U16_X_ADDR_END, - sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].left - + sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].width - 1); - if (rval < 0) - goto out; - - rval = smiapp_write( - sensor, SMIAPP_REG_U16_Y_ADDR_END, - sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].top - + sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].height - 1); - if (rval < 0) - goto out; - - /* - * Output from pixel array, including blanking, is set using - * controls below. No need to set here. - */ - - /* Digital crop */ - if (sensor->limits[SMIAPP_LIMIT_DIGITAL_CROP_CAPABILITY] - == SMIAPP_DIGITAL_CROP_CAPABILITY_INPUT_CROP) { - rval = smiapp_write( - sensor, SMIAPP_REG_U16_DIGITAL_CROP_X_OFFSET, - sensor->scaler->crop[SMIAPP_PAD_SINK].left); - if (rval < 0) - goto out; - - rval = smiapp_write( - sensor, SMIAPP_REG_U16_DIGITAL_CROP_Y_OFFSET, - sensor->scaler->crop[SMIAPP_PAD_SINK].top); - if (rval < 0) - goto out; - - rval = smiapp_write( - sensor, SMIAPP_REG_U16_DIGITAL_CROP_IMAGE_WIDTH, - sensor->scaler->crop[SMIAPP_PAD_SINK].width); - if (rval < 0) - goto out; - - rval = smiapp_write( - sensor, SMIAPP_REG_U16_DIGITAL_CROP_IMAGE_HEIGHT, - sensor->scaler->crop[SMIAPP_PAD_SINK].height); - if (rval < 0) - goto out; - } - - /* Scaling */ - if (sensor->limits[SMIAPP_LIMIT_SCALING_CAPABILITY] - != SMIAPP_SCALING_CAPABILITY_NONE) { - rval = smiapp_write(sensor, SMIAPP_REG_U16_SCALING_MODE, - sensor->scaling_mode); - if (rval < 0) - goto out; - - rval = smiapp_write(sensor, SMIAPP_REG_U16_SCALE_M, - sensor->scale_m); - if (rval < 0) - goto out; - } - - /* Output size from sensor */ - rval = smiapp_write(sensor, SMIAPP_REG_U16_X_OUTPUT_SIZE, - sensor->src->crop[SMIAPP_PAD_SRC].width); - if (rval < 0) - goto out; - rval = smiapp_write(sensor, SMIAPP_REG_U16_Y_OUTPUT_SIZE, - sensor->src->crop[SMIAPP_PAD_SRC].height); - if (rval < 0) - goto out; - - if ((sensor->flash_capability & - (SMIAPP_FLASH_MODE_CAPABILITY_SINGLE_STROBE | - SMIAPP_FLASH_MODE_CAPABILITY_MULTIPLE_STROBE)) && - sensor->platform_data->strobe_setup != NULL && - sensor->platform_data->strobe_setup->trigger != 0) { - rval = smiapp_setup_flash_strobe(sensor); - if (rval) - goto out; - } - - rval = smiapp_call_quirk(sensor, pre_streamon); - if (rval) { - dev_err(&client->dev, "pre_streamon quirks failed\n"); - goto out; - } - - rval = smiapp_write(sensor, SMIAPP_REG_U8_MODE_SELECT, - SMIAPP_MODE_SELECT_STREAMING); - -out: - mutex_unlock(&sensor->mutex); - - return rval; -} - -static int smiapp_stop_streaming(struct smiapp_sensor *sensor) -{ - struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); - int rval; - - mutex_lock(&sensor->mutex); - rval = smiapp_write(sensor, SMIAPP_REG_U8_MODE_SELECT, - SMIAPP_MODE_SELECT_SOFTWARE_STANDBY); - if (rval) - goto out; - - rval = smiapp_call_quirk(sensor, post_streamoff); - if (rval) - dev_err(&client->dev, "post_streamoff quirks failed\n"); - -out: - mutex_unlock(&sensor->mutex); - return rval; -} - -/* ----------------------------------------------------------------------------- - * V4L2 subdev video operations - */ - -static int smiapp_set_stream(struct v4l2_subdev *subdev, int enable) -{ - struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); - int rval; - - if (sensor->streaming == enable) - return 0; - - if (enable) { - sensor->streaming = 1; - rval = smiapp_start_streaming(sensor); - if (rval < 0) - sensor->streaming = 0; - } else { - rval = smiapp_stop_streaming(sensor); - sensor->streaming = 0; - } - - return rval; -} - -static int smiapp_enum_mbus_code(struct v4l2_subdev *subdev, - struct v4l2_subdev_fh *fh, - struct v4l2_subdev_mbus_code_enum *code) -{ - struct i2c_client *client = v4l2_get_subdevdata(subdev); - struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); - unsigned int i; - int idx = -1; - int rval = -EINVAL; - - mutex_lock(&sensor->mutex); - - dev_err(&client->dev, "subdev %s, pad %d, index %d\n", - subdev->name, code->pad, code->index); - - if (subdev != &sensor->src->sd || code->pad != SMIAPP_PAD_SRC) { - if (code->index) - goto out; - - code->code = sensor->internal_csi_format->code; - rval = 0; - goto out; - } - - for (i = 0; i < ARRAY_SIZE(smiapp_csi_data_formats); i++) { - if (sensor->mbus_frame_fmts & (1 << i)) - idx++; - - if (idx == code->index) { - code->code = smiapp_csi_data_formats[i].code; - dev_err(&client->dev, "found index %d, i %d, code %x\n", - code->index, i, code->code); - rval = 0; - break; - } - } - -out: - mutex_unlock(&sensor->mutex); - - return rval; -} - -static u32 __smiapp_get_mbus_code(struct v4l2_subdev *subdev, - unsigned int pad) -{ - struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); - - if (subdev == &sensor->src->sd && pad == SMIAPP_PAD_SRC) - return sensor->csi_format->code; - else - return sensor->internal_csi_format->code; -} - -static int __smiapp_get_format(struct v4l2_subdev *subdev, - struct v4l2_subdev_fh *fh, - struct v4l2_subdev_format *fmt) -{ - struct smiapp_subdev *ssd = to_smiapp_subdev(subdev); - - if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { - fmt->format = *v4l2_subdev_get_try_format(fh, fmt->pad); - } else { - struct v4l2_rect *r; - - if (fmt->pad == ssd->source_pad) - r = &ssd->crop[ssd->source_pad]; - else - r = &ssd->sink_fmt; - - fmt->format.code = __smiapp_get_mbus_code(subdev, fmt->pad); - fmt->format.width = r->width; - fmt->format.height = r->height; - } - - return 0; -} - -static int smiapp_get_format(struct v4l2_subdev *subdev, - struct v4l2_subdev_fh *fh, - struct v4l2_subdev_format *fmt) -{ - struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); - int rval; - - mutex_lock(&sensor->mutex); - rval = __smiapp_get_format(subdev, fh, fmt); - mutex_unlock(&sensor->mutex); - - return rval; -} - -static void smiapp_get_crop_compose(struct v4l2_subdev *subdev, - struct v4l2_subdev_fh *fh, - struct v4l2_rect **crops, - struct v4l2_rect **comps, int which) -{ - struct smiapp_subdev *ssd = to_smiapp_subdev(subdev); - unsigned int i; - - if (which == V4L2_SUBDEV_FORMAT_ACTIVE) { - if (crops) - for (i = 0; i < subdev->entity.num_pads; i++) - crops[i] = &ssd->crop[i]; - if (comps) - *comps = &ssd->compose; - } else { - if (crops) { - for (i = 0; i < subdev->entity.num_pads; i++) { - crops[i] = v4l2_subdev_get_try_crop(fh, i); - BUG_ON(!crops[i]); - } - } - if (comps) { - *comps = v4l2_subdev_get_try_compose(fh, - SMIAPP_PAD_SINK); - BUG_ON(!*comps); - } - } -} - -/* Changes require propagation only on sink pad. */ -static void smiapp_propagate(struct v4l2_subdev *subdev, - struct v4l2_subdev_fh *fh, int which, - int target) -{ - struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); - struct smiapp_subdev *ssd = to_smiapp_subdev(subdev); - struct v4l2_rect *comp, *crops[SMIAPP_PADS]; - - smiapp_get_crop_compose(subdev, fh, crops, &comp, which); - - switch (target) { - case V4L2_SEL_TGT_CROP: - comp->width = crops[SMIAPP_PAD_SINK]->width; - comp->height = crops[SMIAPP_PAD_SINK]->height; - if (which == V4L2_SUBDEV_FORMAT_ACTIVE) { - if (ssd == sensor->scaler) { - sensor->scale_m = - sensor->limits[ - SMIAPP_LIMIT_SCALER_N_MIN]; - sensor->scaling_mode = - SMIAPP_SCALING_MODE_NONE; - } else if (ssd == sensor->binner) { - sensor->binning_horizontal = 1; - sensor->binning_vertical = 1; - } - } - /* Fall through */ - case V4L2_SEL_TGT_COMPOSE: - *crops[SMIAPP_PAD_SRC] = *comp; - break; - default: - BUG(); - } -} - -static const struct smiapp_csi_data_format -*smiapp_validate_csi_data_format(struct smiapp_sensor *sensor, u32 code) -{ - const struct smiapp_csi_data_format *csi_format = sensor->csi_format; - unsigned int i; - - for (i = 0; i < ARRAY_SIZE(smiapp_csi_data_formats); i++) { - if (sensor->mbus_frame_fmts & (1 << i) - && smiapp_csi_data_formats[i].code == code) - return &smiapp_csi_data_formats[i]; - } - - return csi_format; -} - -static int smiapp_set_format(struct v4l2_subdev *subdev, - struct v4l2_subdev_fh *fh, - struct v4l2_subdev_format *fmt) -{ - struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); - struct smiapp_subdev *ssd = to_smiapp_subdev(subdev); - struct v4l2_rect *crops[SMIAPP_PADS]; - - mutex_lock(&sensor->mutex); - - /* - * Media bus code is changeable on src subdev's source pad. On - * other source pads we just get format here. - */ - if (fmt->pad == ssd->source_pad) { - u32 code = fmt->format.code; - int rval = __smiapp_get_format(subdev, fh, fmt); - - if (!rval && subdev == &sensor->src->sd) { - const struct smiapp_csi_data_format *csi_format = - smiapp_validate_csi_data_format(sensor, code); - if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) - sensor->csi_format = csi_format; - fmt->format.code = csi_format->code; - } - - mutex_unlock(&sensor->mutex); - return rval; - } - - /* Sink pad. Width and height are changeable here. */ - fmt->format.code = __smiapp_get_mbus_code(subdev, fmt->pad); - fmt->format.width &= ~1; - fmt->format.height &= ~1; - - fmt->format.width = - clamp(fmt->format.width, - sensor->limits[SMIAPP_LIMIT_MIN_X_OUTPUT_SIZE], - sensor->limits[SMIAPP_LIMIT_MAX_X_OUTPUT_SIZE]); - fmt->format.height = - clamp(fmt->format.height, - sensor->limits[SMIAPP_LIMIT_MIN_Y_OUTPUT_SIZE], - sensor->limits[SMIAPP_LIMIT_MAX_Y_OUTPUT_SIZE]); - - smiapp_get_crop_compose(subdev, fh, crops, NULL, fmt->which); - - crops[ssd->sink_pad]->left = 0; - crops[ssd->sink_pad]->top = 0; - crops[ssd->sink_pad]->width = fmt->format.width; - crops[ssd->sink_pad]->height = fmt->format.height; - if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) - ssd->sink_fmt = *crops[ssd->sink_pad]; - smiapp_propagate(subdev, fh, fmt->which, - V4L2_SEL_TGT_CROP); - - mutex_unlock(&sensor->mutex); - - return 0; -} - -/* - * Calculate goodness of scaled image size compared to expected image - * size and flags provided. - */ -#define SCALING_GOODNESS 100000 -#define SCALING_GOODNESS_EXTREME 100000000 -static int scaling_goodness(struct v4l2_subdev *subdev, int w, int ask_w, - int h, int ask_h, u32 flags) -{ - struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); - struct i2c_client *client = v4l2_get_subdevdata(subdev); - int val = 0; - - w &= ~1; - ask_w &= ~1; - h &= ~1; - ask_h &= ~1; - - if (flags & V4L2_SEL_FLAG_GE) { - if (w < ask_w) - val -= SCALING_GOODNESS; - if (h < ask_h) - val -= SCALING_GOODNESS; - } - - if (flags & V4L2_SEL_FLAG_LE) { - if (w > ask_w) - val -= SCALING_GOODNESS; - if (h > ask_h) - val -= SCALING_GOODNESS; - } - - val -= abs(w - ask_w); - val -= abs(h - ask_h); - - if (w < sensor->limits[SMIAPP_LIMIT_MIN_X_OUTPUT_SIZE]) - val -= SCALING_GOODNESS_EXTREME; - - dev_dbg(&client->dev, "w %d ask_w %d h %d ask_h %d goodness %d\n", - w, ask_h, h, ask_h, val); - - return val; -} - -static void smiapp_set_compose_binner(struct v4l2_subdev *subdev, - struct v4l2_subdev_fh *fh, - struct v4l2_subdev_selection *sel, - struct v4l2_rect **crops, - struct v4l2_rect *comp) -{ - struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); - unsigned int i; - unsigned int binh = 1, binv = 1; - unsigned int best = scaling_goodness( - subdev, - crops[SMIAPP_PAD_SINK]->width, sel->r.width, - crops[SMIAPP_PAD_SINK]->height, sel->r.height, sel->flags); - - for (i = 0; i < sensor->nbinning_subtypes; i++) { - int this = scaling_goodness( - subdev, - crops[SMIAPP_PAD_SINK]->width - / sensor->binning_subtypes[i].horizontal, - sel->r.width, - crops[SMIAPP_PAD_SINK]->height - / sensor->binning_subtypes[i].vertical, - sel->r.height, sel->flags); - - if (this > best) { - binh = sensor->binning_subtypes[i].horizontal; - binv = sensor->binning_subtypes[i].vertical; - best = this; - } - } - if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE) { - sensor->binning_vertical = binv; - sensor->binning_horizontal = binh; - } - - sel->r.width = (crops[SMIAPP_PAD_SINK]->width / binh) & ~1; - sel->r.height = (crops[SMIAPP_PAD_SINK]->height / binv) & ~1; -} - -/* - * Calculate best scaling ratio and mode for given output resolution. - * - * Try all of these: horizontal ratio, vertical ratio and smallest - * size possible (horizontally). - * - * Also try whether horizontal scaler or full scaler gives a better - * result. - */ -static void smiapp_set_compose_scaler(struct v4l2_subdev *subdev, - struct v4l2_subdev_fh *fh, - struct v4l2_subdev_selection *sel, - struct v4l2_rect **crops, - struct v4l2_rect *comp) -{ - struct i2c_client *client = v4l2_get_subdevdata(subdev); - struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); - u32 min, max, a, b, max_m; - u32 scale_m = sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN]; - int mode = SMIAPP_SCALING_MODE_HORIZONTAL; - u32 try[4]; - u32 ntry = 0; - unsigned int i; - int best = INT_MIN; - - sel->r.width = min_t(unsigned int, sel->r.width, - crops[SMIAPP_PAD_SINK]->width); - sel->r.height = min_t(unsigned int, sel->r.height, - crops[SMIAPP_PAD_SINK]->height); - - a = crops[SMIAPP_PAD_SINK]->width - * sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN] / sel->r.width; - b = crops[SMIAPP_PAD_SINK]->height - * sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN] / sel->r.height; - max_m = crops[SMIAPP_PAD_SINK]->width - * sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN] - / sensor->limits[SMIAPP_LIMIT_MIN_X_OUTPUT_SIZE]; - - a = min(sensor->limits[SMIAPP_LIMIT_SCALER_M_MAX], - max(a, sensor->limits[SMIAPP_LIMIT_SCALER_M_MIN])); - b = min(sensor->limits[SMIAPP_LIMIT_SCALER_M_MAX], - max(b, sensor->limits[SMIAPP_LIMIT_SCALER_M_MIN])); - max_m = min(sensor->limits[SMIAPP_LIMIT_SCALER_M_MAX], - max(max_m, sensor->limits[SMIAPP_LIMIT_SCALER_M_MIN])); - - dev_dbg(&client->dev, "scaling: a %d b %d max_m %d\n", a, b, max_m); - - min = min(max_m, min(a, b)); - max = min(max_m, max(a, b)); - - try[ntry] = min; - ntry++; - if (min != max) { - try[ntry] = max; - ntry++; - } - if (max != max_m) { - try[ntry] = min + 1; - ntry++; - if (min != max) { - try[ntry] = max + 1; - ntry++; - } - } - - for (i = 0; i < ntry; i++) { - int this = scaling_goodness( - subdev, - crops[SMIAPP_PAD_SINK]->width - / try[i] - * sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN], - sel->r.width, - crops[SMIAPP_PAD_SINK]->height, - sel->r.height, - sel->flags); - - dev_dbg(&client->dev, "trying factor %d (%d)\n", try[i], i); - - if (this > best) { - scale_m = try[i]; - mode = SMIAPP_SCALING_MODE_HORIZONTAL; - best = this; - } - - if (sensor->limits[SMIAPP_LIMIT_SCALING_CAPABILITY] - == SMIAPP_SCALING_CAPABILITY_HORIZONTAL) - continue; - - this = scaling_goodness( - subdev, crops[SMIAPP_PAD_SINK]->width - / try[i] - * sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN], - sel->r.width, - crops[SMIAPP_PAD_SINK]->height - / try[i] - * sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN], - sel->r.height, - sel->flags); - - if (this > best) { - scale_m = try[i]; - mode = SMIAPP_SCALING_MODE_BOTH; - best = this; - } - } - - sel->r.width = - (crops[SMIAPP_PAD_SINK]->width - / scale_m - * sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN]) & ~1; - if (mode == SMIAPP_SCALING_MODE_BOTH) - sel->r.height = - (crops[SMIAPP_PAD_SINK]->height - / scale_m - * sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN]) - & ~1; - else - sel->r.height = crops[SMIAPP_PAD_SINK]->height; - - if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE) { - sensor->scale_m = scale_m; - sensor->scaling_mode = mode; - } -} -/* We're only called on source pads. This function sets scaling. */ -static int smiapp_set_compose(struct v4l2_subdev *subdev, - struct v4l2_subdev_fh *fh, - struct v4l2_subdev_selection *sel) -{ - struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); - struct smiapp_subdev *ssd = to_smiapp_subdev(subdev); - struct v4l2_rect *comp, *crops[SMIAPP_PADS]; - - smiapp_get_crop_compose(subdev, fh, crops, &comp, sel->which); - - sel->r.top = 0; - sel->r.left = 0; - - if (ssd == sensor->binner) - smiapp_set_compose_binner(subdev, fh, sel, crops, comp); - else - smiapp_set_compose_scaler(subdev, fh, sel, crops, comp); - - *comp = sel->r; - smiapp_propagate(subdev, fh, sel->which, - V4L2_SEL_TGT_COMPOSE); - - if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE) - return smiapp_update_mode(sensor); - - return 0; -} - -static int __smiapp_sel_supported(struct v4l2_subdev *subdev, - struct v4l2_subdev_selection *sel) -{ - struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); - struct smiapp_subdev *ssd = to_smiapp_subdev(subdev); - - /* We only implement crop in three places. */ - switch (sel->target) { - case V4L2_SEL_TGT_CROP: - case V4L2_SEL_TGT_CROP_BOUNDS: - if (ssd == sensor->pixel_array - && sel->pad == SMIAPP_PA_PAD_SRC) - return 0; - if (ssd == sensor->src - && sel->pad == SMIAPP_PAD_SRC) - return 0; - if (ssd == sensor->scaler - && sel->pad == SMIAPP_PAD_SINK - && sensor->limits[SMIAPP_LIMIT_DIGITAL_CROP_CAPABILITY] - == SMIAPP_DIGITAL_CROP_CAPABILITY_INPUT_CROP) - return 0; - return -EINVAL; - case V4L2_SEL_TGT_COMPOSE: - case V4L2_SEL_TGT_COMPOSE_BOUNDS: - if (sel->pad == ssd->source_pad) - return -EINVAL; - if (ssd == sensor->binner) - return 0; - if (ssd == sensor->scaler - && sensor->limits[SMIAPP_LIMIT_SCALING_CAPABILITY] - != SMIAPP_SCALING_CAPABILITY_NONE) - return 0; - /* Fall through */ - default: - return -EINVAL; - } -} - -static int smiapp_set_crop(struct v4l2_subdev *subdev, - struct v4l2_subdev_fh *fh, - struct v4l2_subdev_selection *sel) -{ - struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); - struct smiapp_subdev *ssd = to_smiapp_subdev(subdev); - struct v4l2_rect *src_size, *crops[SMIAPP_PADS]; - struct v4l2_rect _r; - - smiapp_get_crop_compose(subdev, fh, crops, NULL, sel->which); - - if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE) { - if (sel->pad == ssd->sink_pad) - src_size = &ssd->sink_fmt; - else - src_size = &ssd->compose; - } else { - if (sel->pad == ssd->sink_pad) { - _r.left = 0; - _r.top = 0; - _r.width = v4l2_subdev_get_try_format(fh, sel->pad) - ->width; - _r.height = v4l2_subdev_get_try_format(fh, sel->pad) - ->height; - src_size = &_r; - } else { - src_size = - v4l2_subdev_get_try_compose( - fh, ssd->sink_pad); - } - } - - if (ssd == sensor->src && sel->pad == SMIAPP_PAD_SRC) { - sel->r.left = 0; - sel->r.top = 0; - } - - sel->r.width = min(sel->r.width, src_size->width); - sel->r.height = min(sel->r.height, src_size->height); - - sel->r.left = min(sel->r.left, src_size->width - sel->r.width); - sel->r.top = min(sel->r.top, src_size->height - sel->r.height); - - *crops[sel->pad] = sel->r; - - if (ssd != sensor->pixel_array && sel->pad == SMIAPP_PAD_SINK) - smiapp_propagate(subdev, fh, sel->which, - V4L2_SEL_TGT_CROP); - - return 0; -} - -static int __smiapp_get_selection(struct v4l2_subdev *subdev, - struct v4l2_subdev_fh *fh, - struct v4l2_subdev_selection *sel) -{ - struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); - struct smiapp_subdev *ssd = to_smiapp_subdev(subdev); - struct v4l2_rect *comp, *crops[SMIAPP_PADS]; - struct v4l2_rect sink_fmt; - int ret; - - ret = __smiapp_sel_supported(subdev, sel); - if (ret) - return ret; - - smiapp_get_crop_compose(subdev, fh, crops, &comp, sel->which); - - if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE) { - sink_fmt = ssd->sink_fmt; - } else { - struct v4l2_mbus_framefmt *fmt = - v4l2_subdev_get_try_format(fh, ssd->sink_pad); - - sink_fmt.left = 0; - sink_fmt.top = 0; - sink_fmt.width = fmt->width; - sink_fmt.height = fmt->height; - } - - switch (sel->target) { - case V4L2_SEL_TGT_CROP_BOUNDS: - if (ssd == sensor->pixel_array) { - sel->r.width = - sensor->limits[SMIAPP_LIMIT_X_ADDR_MAX] + 1; - sel->r.height = - sensor->limits[SMIAPP_LIMIT_Y_ADDR_MAX] + 1; - } else if (sel->pad == ssd->sink_pad) { - sel->r = sink_fmt; - } else { - sel->r = *comp; - } - break; - case V4L2_SEL_TGT_CROP: - case V4L2_SEL_TGT_COMPOSE_BOUNDS: - sel->r = *crops[sel->pad]; - break; - case V4L2_SEL_TGT_COMPOSE: - sel->r = *comp; - break; - } - - return 0; -} - -static int smiapp_get_selection(struct v4l2_subdev *subdev, - struct v4l2_subdev_fh *fh, - struct v4l2_subdev_selection *sel) -{ - struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); - int rval; - - mutex_lock(&sensor->mutex); - rval = __smiapp_get_selection(subdev, fh, sel); - mutex_unlock(&sensor->mutex); - - return rval; -} -static int smiapp_set_selection(struct v4l2_subdev *subdev, - struct v4l2_subdev_fh *fh, - struct v4l2_subdev_selection *sel) -{ - struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); - int ret; - - ret = __smiapp_sel_supported(subdev, sel); - if (ret) - return ret; - - mutex_lock(&sensor->mutex); - - sel->r.left = max(0, sel->r.left & ~1); - sel->r.top = max(0, sel->r.top & ~1); - sel->r.width = max(0, SMIAPP_ALIGN_DIM(sel->r.width, sel->flags)); - sel->r.height = max(0, SMIAPP_ALIGN_DIM(sel->r.height, sel->flags)); - - sel->r.width = max_t(unsigned int, - sensor->limits[SMIAPP_LIMIT_MIN_X_OUTPUT_SIZE], - sel->r.width); - sel->r.height = max_t(unsigned int, - sensor->limits[SMIAPP_LIMIT_MIN_Y_OUTPUT_SIZE], - sel->r.height); - - switch (sel->target) { - case V4L2_SEL_TGT_CROP: - ret = smiapp_set_crop(subdev, fh, sel); - break; - case V4L2_SEL_TGT_COMPOSE: - ret = smiapp_set_compose(subdev, fh, sel); - break; - default: - BUG(); - } - - mutex_unlock(&sensor->mutex); - return ret; -} - -static int smiapp_get_skip_frames(struct v4l2_subdev *subdev, u32 *frames) -{ - struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); - - *frames = sensor->frame_skip; - return 0; -} - -/* ----------------------------------------------------------------------------- - * sysfs attributes - */ - -static ssize_t -smiapp_sysfs_nvm_read(struct device *dev, struct device_attribute *attr, - char *buf) -{ - struct v4l2_subdev *subdev = i2c_get_clientdata(to_i2c_client(dev)); - struct i2c_client *client = v4l2_get_subdevdata(subdev); - struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); - unsigned int nbytes; - - if (!sensor->dev_init_done) - return -EBUSY; - - if (!sensor->nvm_size) { - /* NVM not read yet - read it now */ - sensor->nvm_size = sensor->platform_data->nvm_size; - if (smiapp_set_power(subdev, 1) < 0) - return -ENODEV; - if (smiapp_read_nvm(sensor, sensor->nvm)) { - dev_err(&client->dev, "nvm read failed\n"); - return -ENODEV; - } - smiapp_set_power(subdev, 0); - } - /* - * NVM is still way below a PAGE_SIZE, so we can safely - * assume this for now. - */ - nbytes = min_t(unsigned int, sensor->nvm_size, PAGE_SIZE); - memcpy(buf, sensor->nvm, nbytes); - - return nbytes; -} -static DEVICE_ATTR(nvm, S_IRUGO, smiapp_sysfs_nvm_read, NULL); - -/* ----------------------------------------------------------------------------- - * V4L2 subdev core operations - */ - -static int smiapp_identify_module(struct v4l2_subdev *subdev) -{ - struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); - struct i2c_client *client = v4l2_get_subdevdata(subdev); - struct smiapp_module_info *minfo = &sensor->minfo; - unsigned int i; - int rval = 0; - - minfo->name = SMIAPP_NAME; - - /* Module info */ - rval = smiapp_read_8only(sensor, SMIAPP_REG_U8_MANUFACTURER_ID, - &minfo->manufacturer_id); - if (!rval) - rval = smiapp_read_8only(sensor, SMIAPP_REG_U16_MODEL_ID, - &minfo->model_id); - if (!rval) - rval = smiapp_read_8only(sensor, - SMIAPP_REG_U8_REVISION_NUMBER_MAJOR, - &minfo->revision_number_major); - if (!rval) - rval = smiapp_read_8only(sensor, - SMIAPP_REG_U8_REVISION_NUMBER_MINOR, - &minfo->revision_number_minor); - if (!rval) - rval = smiapp_read_8only(sensor, - SMIAPP_REG_U8_MODULE_DATE_YEAR, - &minfo->module_year); - if (!rval) - rval = smiapp_read_8only(sensor, - SMIAPP_REG_U8_MODULE_DATE_MONTH, - &minfo->module_month); - if (!rval) - rval = smiapp_read_8only(sensor, SMIAPP_REG_U8_MODULE_DATE_DAY, - &minfo->module_day); - - /* Sensor info */ - if (!rval) - rval = smiapp_read_8only(sensor, - SMIAPP_REG_U8_SENSOR_MANUFACTURER_ID, - &minfo->sensor_manufacturer_id); - if (!rval) - rval = smiapp_read_8only(sensor, - SMIAPP_REG_U16_SENSOR_MODEL_ID, - &minfo->sensor_model_id); - if (!rval) - rval = smiapp_read_8only(sensor, - SMIAPP_REG_U8_SENSOR_REVISION_NUMBER, - &minfo->sensor_revision_number); - if (!rval) - rval = smiapp_read_8only(sensor, - SMIAPP_REG_U8_SENSOR_FIRMWARE_VERSION, - &minfo->sensor_firmware_version); - - /* SMIA */ - if (!rval) - rval = smiapp_read_8only(sensor, SMIAPP_REG_U8_SMIA_VERSION, - &minfo->smia_version); - if (!rval) - rval = smiapp_read_8only(sensor, SMIAPP_REG_U8_SMIAPP_VERSION, - &minfo->smiapp_version); - - if (rval) { - dev_err(&client->dev, "sensor detection failed\n"); - return -ENODEV; - } - - dev_dbg(&client->dev, "module 0x%2.2x-0x%4.4x\n", - minfo->manufacturer_id, minfo->model_id); - - dev_dbg(&client->dev, - "module revision 0x%2.2x-0x%2.2x date %2.2d-%2.2d-%2.2d\n", - minfo->revision_number_major, minfo->revision_number_minor, - minfo->module_year, minfo->module_month, minfo->module_day); - - dev_dbg(&client->dev, "sensor 0x%2.2x-0x%4.4x\n", - minfo->sensor_manufacturer_id, minfo->sensor_model_id); - - dev_dbg(&client->dev, - "sensor revision 0x%2.2x firmware version 0x%2.2x\n", - minfo->sensor_revision_number, minfo->sensor_firmware_version); - - dev_dbg(&client->dev, "smia version %2.2d smiapp version %2.2d\n", - minfo->smia_version, minfo->smiapp_version); - - /* - * Some modules have bad data in the lvalues below. Hope the - * rvalues have better stuff. The lvalues are module - * parameters whereas the rvalues are sensor parameters. - */ - if (!minfo->manufacturer_id && !minfo->model_id) { - minfo->manufacturer_id = minfo->sensor_manufacturer_id; - minfo->model_id = minfo->sensor_model_id; - minfo->revision_number_major = minfo->sensor_revision_number; - } - - for (i = 0; i < ARRAY_SIZE(smiapp_module_idents); i++) { - if (smiapp_module_idents[i].manufacturer_id - != minfo->manufacturer_id) - continue; - if (smiapp_module_idents[i].model_id != minfo->model_id) - continue; - if (smiapp_module_idents[i].flags - & SMIAPP_MODULE_IDENT_FLAG_REV_LE) { - if (smiapp_module_idents[i].revision_number_major - < minfo->revision_number_major) - continue; - } else { - if (smiapp_module_idents[i].revision_number_major - != minfo->revision_number_major) - continue; - } - - minfo->name = smiapp_module_idents[i].name; - minfo->quirk = smiapp_module_idents[i].quirk; - break; - } - - if (i >= ARRAY_SIZE(smiapp_module_idents)) - dev_warn(&client->dev, - "no quirks for this module; let's hope it's fully compliant\n"); - - dev_dbg(&client->dev, "the sensor is called %s, ident %2.2x%4.4x%2.2x\n", - minfo->name, minfo->manufacturer_id, minfo->model_id, - minfo->revision_number_major); - - strlcpy(subdev->name, sensor->minfo.name, sizeof(subdev->name)); - - return 0; -} - -static const struct v4l2_subdev_ops smiapp_ops; -static const struct v4l2_subdev_internal_ops smiapp_internal_ops; -static const struct media_entity_operations smiapp_entity_ops; - -static int smiapp_registered(struct v4l2_subdev *subdev) -{ - struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); - struct i2c_client *client = v4l2_get_subdevdata(subdev); - struct smiapp_subdev *last = NULL; - u32 tmp; - unsigned int i; - int rval; - - sensor->vana = regulator_get(&client->dev, "VANA"); - if (IS_ERR(sensor->vana)) { - dev_err(&client->dev, "could not get regulator for vana\n"); - return -ENODEV; - } - - if (!sensor->platform_data->set_xclk) { - sensor->ext_clk = clk_get(&client->dev, - sensor->platform_data->ext_clk_name); - if (IS_ERR(sensor->ext_clk)) { - dev_err(&client->dev, "could not get clock %s\n", - sensor->platform_data->ext_clk_name); - rval = -ENODEV; - goto out_clk_get; - } - - rval = clk_set_rate(sensor->ext_clk, - sensor->platform_data->ext_clk); - if (rval < 0) { - dev_err(&client->dev, - "unable to set clock %s freq to %u\n", - sensor->platform_data->ext_clk_name, - sensor->platform_data->ext_clk); - rval = -ENODEV; - goto out_clk_set_rate; - } - } - - if (sensor->platform_data->xshutdown != SMIAPP_NO_XSHUTDOWN) { - if (gpio_request_one(sensor->platform_data->xshutdown, 0, - "SMIA++ xshutdown") != 0) { - dev_err(&client->dev, - "unable to acquire reset gpio %d\n", - sensor->platform_data->xshutdown); - rval = -ENODEV; - goto out_clk_set_rate; - } - } - - rval = smiapp_power_on(sensor); - if (rval) { - rval = -ENODEV; - goto out_smiapp_power_on; - } - - rval = smiapp_identify_module(subdev); - if (rval) { - rval = -ENODEV; - goto out_power_off; - } - - rval = smiapp_get_all_limits(sensor); - if (rval) { - rval = -ENODEV; - goto out_power_off; - } - - /* - * Handle Sensor Module orientation on the board. - * - * The application of H-FLIP and V-FLIP on the sensor is modified by - * the sensor orientation on the board. - * - * For SMIAPP_BOARD_SENSOR_ORIENT_180 the default behaviour is to set - * both H-FLIP and V-FLIP for normal operation which also implies - * that a set/unset operation for user space HFLIP and VFLIP v4l2 - * controls will need to be internally inverted. - * - * Rotation also changes the bayer pattern. - */ - if (sensor->platform_data->module_board_orient == - SMIAPP_MODULE_BOARD_ORIENT_180) - sensor->hvflip_inv_mask = SMIAPP_IMAGE_ORIENTATION_HFLIP | - SMIAPP_IMAGE_ORIENTATION_VFLIP; - - rval = smiapp_get_mbus_formats(sensor); - if (rval) { - rval = -ENODEV; - goto out_power_off; - } - - if (sensor->limits[SMIAPP_LIMIT_BINNING_CAPABILITY]) { - u32 val; - - rval = smiapp_read(sensor, - SMIAPP_REG_U8_BINNING_SUBTYPES, &val); - if (rval < 0) { - rval = -ENODEV; - goto out_power_off; - } - sensor->nbinning_subtypes = min_t(u8, val, - SMIAPP_BINNING_SUBTYPES); - - for (i = 0; i < sensor->nbinning_subtypes; i++) { - rval = smiapp_read( - sensor, SMIAPP_REG_U8_BINNING_TYPE_n(i), &val); - if (rval < 0) { - rval = -ENODEV; - goto out_power_off; - } - sensor->binning_subtypes[i] = - *(struct smiapp_binning_subtype *)&val; - - dev_dbg(&client->dev, "binning %xx%x\n", - sensor->binning_subtypes[i].horizontal, - sensor->binning_subtypes[i].vertical); - } - } - sensor->binning_horizontal = 1; - sensor->binning_vertical = 1; - - /* SMIA++ NVM initialization - it will be read from the sensor - * when it is first requested by userspace. - */ - if (sensor->minfo.smiapp_version && sensor->platform_data->nvm_size) { - sensor->nvm = kzalloc(sensor->platform_data->nvm_size, - GFP_KERNEL); - if (sensor->nvm == NULL) { - dev_err(&client->dev, "nvm buf allocation failed\n"); - rval = -ENOMEM; - goto out_power_off; - } - - if (device_create_file(&client->dev, &dev_attr_nvm) != 0) { - dev_err(&client->dev, "sysfs nvm entry failed\n"); - rval = -EBUSY; - goto out_power_off; - } - } - - rval = smiapp_call_quirk(sensor, limits); - if (rval) { - dev_err(&client->dev, "limits quirks failed\n"); - goto out_nvm_release; - } - - /* We consider this as profile 0 sensor if any of these are zero. */ - if (!sensor->limits[SMIAPP_LIMIT_MIN_OP_SYS_CLK_DIV] || - !sensor->limits[SMIAPP_LIMIT_MAX_OP_SYS_CLK_DIV] || - !sensor->limits[SMIAPP_LIMIT_MIN_OP_PIX_CLK_DIV] || - !sensor->limits[SMIAPP_LIMIT_MAX_OP_PIX_CLK_DIV]) { - sensor->minfo.smiapp_profile = SMIAPP_PROFILE_0; - } else if (sensor->limits[SMIAPP_LIMIT_SCALING_CAPABILITY] - != SMIAPP_SCALING_CAPABILITY_NONE) { - if (sensor->limits[SMIAPP_LIMIT_SCALING_CAPABILITY] - == SMIAPP_SCALING_CAPABILITY_HORIZONTAL) - sensor->minfo.smiapp_profile = SMIAPP_PROFILE_1; - else - sensor->minfo.smiapp_profile = SMIAPP_PROFILE_2; - sensor->scaler = &sensor->ssds[sensor->ssds_used]; - sensor->ssds_used++; - } else if (sensor->limits[SMIAPP_LIMIT_DIGITAL_CROP_CAPABILITY] - == SMIAPP_DIGITAL_CROP_CAPABILITY_INPUT_CROP) { - sensor->scaler = &sensor->ssds[sensor->ssds_used]; - sensor->ssds_used++; - } - sensor->binner = &sensor->ssds[sensor->ssds_used]; - sensor->ssds_used++; - sensor->pixel_array = &sensor->ssds[sensor->ssds_used]; - sensor->ssds_used++; - - sensor->scale_m = sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN]; - - for (i = 0; i < SMIAPP_SUBDEVS; i++) { - struct { - struct smiapp_subdev *ssd; - char *name; - } const __this[] = { - { sensor->scaler, "scaler", }, - { sensor->binner, "binner", }, - { sensor->pixel_array, "pixel array", }, - }, *_this = &__this[i]; - struct smiapp_subdev *this = _this->ssd; - - if (!this) - continue; - - if (this != sensor->src) - v4l2_subdev_init(&this->sd, &smiapp_ops); - - this->sensor = sensor; - - if (this == sensor->pixel_array) { - this->npads = 1; - } else { - this->npads = 2; - this->source_pad = 1; - } - - snprintf(this->sd.name, - sizeof(this->sd.name), "%s %s", - sensor->minfo.name, _this->name); - - this->sink_fmt.width = - sensor->limits[SMIAPP_LIMIT_X_ADDR_MAX] + 1; - this->sink_fmt.height = - sensor->limits[SMIAPP_LIMIT_Y_ADDR_MAX] + 1; - this->compose.width = this->sink_fmt.width; - this->compose.height = this->sink_fmt.height; - this->crop[this->source_pad] = this->compose; - this->pads[this->source_pad].flags = MEDIA_PAD_FL_SOURCE; - if (this != sensor->pixel_array) { - this->crop[this->sink_pad] = this->compose; - this->pads[this->sink_pad].flags = MEDIA_PAD_FL_SINK; - } - - this->sd.entity.ops = &smiapp_entity_ops; - - if (last == NULL) { - last = this; - continue; - } - - this->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; - this->sd.internal_ops = &smiapp_internal_ops; - this->sd.owner = NULL; - v4l2_set_subdevdata(&this->sd, client); - - rval = media_entity_init(&this->sd.entity, - this->npads, this->pads, 0); - if (rval) { - dev_err(&client->dev, - "media_entity_init failed\n"); - goto out_nvm_release; - } - - rval = media_entity_create_link(&this->sd.entity, - this->source_pad, - &last->sd.entity, - last->sink_pad, - MEDIA_LNK_FL_ENABLED | - MEDIA_LNK_FL_IMMUTABLE); - if (rval) { - dev_err(&client->dev, - "media_entity_create_link failed\n"); - goto out_nvm_release; - } - - rval = v4l2_device_register_subdev(sensor->src->sd.v4l2_dev, - &this->sd); - if (rval) { - dev_err(&client->dev, - "v4l2_device_register_subdev failed\n"); - goto out_nvm_release; - } - - last = this; - } - - dev_dbg(&client->dev, "profile %d\n", sensor->minfo.smiapp_profile); - - sensor->pixel_array->sd.entity.type = MEDIA_ENT_T_V4L2_SUBDEV_SENSOR; - - /* final steps */ - smiapp_read_frame_fmt(sensor); - rval = smiapp_init_controls(sensor); - if (rval < 0) - goto out_nvm_release; - - rval = smiapp_update_mode(sensor); - if (rval) { - dev_err(&client->dev, "update mode failed\n"); - goto out_nvm_release; - } - - sensor->streaming = false; - sensor->dev_init_done = true; - - /* check flash capability */ - rval = smiapp_read(sensor, SMIAPP_REG_U8_FLASH_MODE_CAPABILITY, &tmp); - sensor->flash_capability = tmp; - if (rval) - goto out_nvm_release; - - smiapp_power_off(sensor); - - return 0; - -out_nvm_release: - device_remove_file(&client->dev, &dev_attr_nvm); - -out_power_off: - kfree(sensor->nvm); - sensor->nvm = NULL; - smiapp_power_off(sensor); - -out_smiapp_power_on: - if (sensor->platform_data->xshutdown != SMIAPP_NO_XSHUTDOWN) - gpio_free(sensor->platform_data->xshutdown); - -out_clk_set_rate: - clk_put(sensor->ext_clk); - sensor->ext_clk = NULL; - -out_clk_get: - regulator_put(sensor->vana); - sensor->vana = NULL; - return rval; -} - -static int smiapp_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) -{ - struct smiapp_subdev *ssd = to_smiapp_subdev(sd); - struct smiapp_sensor *sensor = ssd->sensor; - u32 mbus_code = - smiapp_csi_data_formats[smiapp_pixel_order(sensor)].code; - unsigned int i; - - mutex_lock(&sensor->mutex); - - for (i = 0; i < ssd->npads; i++) { - struct v4l2_mbus_framefmt *try_fmt = - v4l2_subdev_get_try_format(fh, i); - struct v4l2_rect *try_crop = v4l2_subdev_get_try_crop(fh, i); - struct v4l2_rect *try_comp; - - try_fmt->width = sensor->limits[SMIAPP_LIMIT_X_ADDR_MAX] + 1; - try_fmt->height = sensor->limits[SMIAPP_LIMIT_Y_ADDR_MAX] + 1; - try_fmt->code = mbus_code; - - try_crop->top = 0; - try_crop->left = 0; - try_crop->width = try_fmt->width; - try_crop->height = try_fmt->height; - - if (ssd != sensor->pixel_array) - continue; - - try_comp = v4l2_subdev_get_try_compose(fh, i); - *try_comp = *try_crop; - } - - mutex_unlock(&sensor->mutex); - - return smiapp_set_power(sd, 1); -} - -static int smiapp_close(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) -{ - return smiapp_set_power(sd, 0); -} - -static const struct v4l2_subdev_video_ops smiapp_video_ops = { - .s_stream = smiapp_set_stream, -}; - -static const struct v4l2_subdev_core_ops smiapp_core_ops = { - .s_power = smiapp_set_power, -}; - -static const struct v4l2_subdev_pad_ops smiapp_pad_ops = { - .enum_mbus_code = smiapp_enum_mbus_code, - .get_fmt = smiapp_get_format, - .set_fmt = smiapp_set_format, - .get_selection = smiapp_get_selection, - .set_selection = smiapp_set_selection, -}; - -static const struct v4l2_subdev_sensor_ops smiapp_sensor_ops = { - .g_skip_frames = smiapp_get_skip_frames, -}; - -static const struct v4l2_subdev_ops smiapp_ops = { - .core = &smiapp_core_ops, - .video = &smiapp_video_ops, - .pad = &smiapp_pad_ops, - .sensor = &smiapp_sensor_ops, -}; - -static const struct media_entity_operations smiapp_entity_ops = { - .link_validate = v4l2_subdev_link_validate, -}; - -static const struct v4l2_subdev_internal_ops smiapp_internal_src_ops = { - .registered = smiapp_registered, - .open = smiapp_open, - .close = smiapp_close, -}; - -static const struct v4l2_subdev_internal_ops smiapp_internal_ops = { - .open = smiapp_open, - .close = smiapp_close, -}; - -/* ----------------------------------------------------------------------------- - * I2C Driver - */ - -#ifdef CONFIG_PM - -static int smiapp_suspend(struct device *dev) -{ - struct i2c_client *client = to_i2c_client(dev); - struct v4l2_subdev *subdev = i2c_get_clientdata(client); - struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); - bool streaming; - - BUG_ON(mutex_is_locked(&sensor->mutex)); - - if (sensor->power_count == 0) - return 0; - - if (sensor->streaming) - smiapp_stop_streaming(sensor); - - streaming = sensor->streaming; - - smiapp_power_off(sensor); - - /* save state for resume */ - sensor->streaming = streaming; - - return 0; -} - -static int smiapp_resume(struct device *dev) -{ - struct i2c_client *client = to_i2c_client(dev); - struct v4l2_subdev *subdev = i2c_get_clientdata(client); - struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); - int rval; - - if (sensor->power_count == 0) - return 0; - - rval = smiapp_power_on(sensor); - if (rval) - return rval; - - if (sensor->streaming) - rval = smiapp_start_streaming(sensor); - - return rval; -} - -#else - -#define smiapp_suspend NULL -#define smiapp_resume NULL - -#endif /* CONFIG_PM */ - -static int smiapp_probe(struct i2c_client *client, - const struct i2c_device_id *devid) -{ - struct smiapp_sensor *sensor; - int rval; - - if (client->dev.platform_data == NULL) - return -ENODEV; - - sensor = kzalloc(sizeof(*sensor), GFP_KERNEL); - if (sensor == NULL) - return -ENOMEM; - - sensor->platform_data = client->dev.platform_data; - mutex_init(&sensor->mutex); - mutex_init(&sensor->power_mutex); - sensor->src = &sensor->ssds[sensor->ssds_used]; - - v4l2_i2c_subdev_init(&sensor->src->sd, client, &smiapp_ops); - sensor->src->sd.internal_ops = &smiapp_internal_src_ops; - sensor->src->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; - sensor->src->sensor = sensor; - - sensor->src->pads[0].flags = MEDIA_PAD_FL_SOURCE; - rval = media_entity_init(&sensor->src->sd.entity, 2, - sensor->src->pads, 0); - if (rval < 0) - kfree(sensor); - - return rval; -} - -static int __exit smiapp_remove(struct i2c_client *client) -{ - struct v4l2_subdev *subdev = i2c_get_clientdata(client); - struct smiapp_sensor *sensor = to_smiapp_sensor(subdev); - unsigned int i; - - if (sensor->power_count) { - if (sensor->platform_data->xshutdown != SMIAPP_NO_XSHUTDOWN) - gpio_set_value(sensor->platform_data->xshutdown, 0); - if (sensor->platform_data->set_xclk) - sensor->platform_data->set_xclk(&sensor->src->sd, 0); - else - clk_disable(sensor->ext_clk); - sensor->power_count = 0; - } - - if (sensor->nvm) { - device_remove_file(&client->dev, &dev_attr_nvm); - kfree(sensor->nvm); - } - - for (i = 0; i < sensor->ssds_used; i++) { - media_entity_cleanup(&sensor->ssds[i].sd.entity); - v4l2_device_unregister_subdev(&sensor->ssds[i].sd); - } - smiapp_free_controls(sensor); - if (sensor->platform_data->xshutdown != SMIAPP_NO_XSHUTDOWN) - gpio_free(sensor->platform_data->xshutdown); - if (sensor->ext_clk) - clk_put(sensor->ext_clk); - if (sensor->vana) - regulator_put(sensor->vana); - - kfree(sensor); - - return 0; -} - -static const struct i2c_device_id smiapp_id_table[] = { - { SMIAPP_NAME, 0 }, - { }, -}; -MODULE_DEVICE_TABLE(i2c, smiapp_id_table); - -static const struct dev_pm_ops smiapp_pm_ops = { - .suspend = smiapp_suspend, - .resume = smiapp_resume, -}; - -static struct i2c_driver smiapp_i2c_driver = { - .driver = { - .name = SMIAPP_NAME, - .pm = &smiapp_pm_ops, - }, - .probe = smiapp_probe, - .remove = __exit_p(smiapp_remove), - .id_table = smiapp_id_table, -}; - -module_i2c_driver(smiapp_i2c_driver); - -MODULE_AUTHOR("Sakari Ailus <sakari.ailus@maxwell.research.nokia.com>"); -MODULE_DESCRIPTION("Generic SMIA/SMIA++ camera module driver"); -MODULE_LICENSE("GPL"); |