I would fix this things and resend as soon as possible. As I say once again, thanks to review it :) Regards, HeungJun Kim 2011. 2. 3., 오후 4:49, Hans Verkuil 작성: > Just some small points... > > On Tuesday, January 25, 2011 07:33:58 Heungjun Kim wrote: >> Add I2C/V4L2 subdev driver for M5MO-LS camera sensor with integrated >> image processor. >> >> Signed-off-by: Heungjun Kim <riverful.kim@xxxxxxxxxxx> >> Signed-off-by: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx> >> Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx> >> >> --- >> >> Hello, >> >> This is third version of M5MOLS 8 Mega Pixel camera sensor. >> >> The first version patch is here: >> http://www.spinics.net/lists/linux-media/msg26246.html >> >> The second versions changes are below: >> 1. remove I2C function macro, and use static inline for type-safe. >> 2. use the v4l2 control framework documented at v4l2-control.txt. >> 3. Add regulator enable/disable functions >> 4. fix any coding problems >> >> The third version changes are below: >> 1. the method to writing register accordint to state value >> 2. changing mdelay to usleep_range because of not hogging >> >> This driver is tested on s5pc210 board using s5p-fimc driver. >> >> Thanks for any ideas. >> >> Regards, >> Heungjun Kim >> Samsung Electronics DMC R&D Center >> --- >> drivers/media/video/Kconfig | 2 + >> drivers/media/video/Makefile | 1 + >> drivers/media/video/m5mols/Kconfig | 6 + >> drivers/media/video/m5mols/Makefile | 3 + >> drivers/media/video/m5mols/m5mols.h | 261 ++++++++ >> drivers/media/video/m5mols/m5mols_controls.c | 173 +++++ >> drivers/media/video/m5mols/m5mols_core.c | 898 ++++++++++++++++++++++++++ >> drivers/media/video/m5mols/m5mols_reg.h | 103 +++ >> include/media/m5mols.h | 31 + >> 9 files changed, 1478 insertions(+), 0 deletions(-) >> create mode 100644 drivers/media/video/m5mols/Kconfig >> create mode 100644 drivers/media/video/m5mols/Makefile >> create mode 100644 drivers/media/video/m5mols/m5mols.h >> create mode 100644 drivers/media/video/m5mols/m5mols_controls.c >> create mode 100644 drivers/media/video/m5mols/m5mols_core.c >> create mode 100644 drivers/media/video/m5mols/m5mols_reg.h >> create mode 100644 include/media/m5mols.h >> >> diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig >> index d40a8fc..6a03aad 100644 >> --- a/drivers/media/video/Kconfig >> +++ b/drivers/media/video/Kconfig >> @@ -746,6 +746,8 @@ config VIDEO_NOON010PC30 >> ---help--- >> This driver supports NOON010PC30 CIF camera from Siliconfile >> >> +source "drivers/media/video/m5mols/Kconfig" >> + >> config SOC_CAMERA >> tristate "SoC camera support" >> depends on VIDEO_V4L2 && HAS_DMA && I2C >> diff --git a/drivers/media/video/Makefile b/drivers/media/video/Makefile >> index 251b7ca..adb9361 100644 >> --- a/drivers/media/video/Makefile >> +++ b/drivers/media/video/Makefile >> @@ -68,6 +68,7 @@ obj-$(CONFIG_VIDEO_TVEEPROM) += tveeprom.o >> obj-$(CONFIG_VIDEO_MT9V011) += mt9v011.o >> obj-$(CONFIG_VIDEO_SR030PC30) += sr030pc30.o >> obj-$(CONFIG_VIDEO_NOON010PC30) += noon010pc30.o >> +obj-$(CONFIG_VIDEO_M5MOLS) += m5mols/ >> >> obj-$(CONFIG_SOC_CAMERA_IMX074) += imx074.o >> obj-$(CONFIG_SOC_CAMERA_MT9M001) += mt9m001.o >> diff --git a/drivers/media/video/m5mols/Kconfig b/drivers/media/video/m5mols/Kconfig >> new file mode 100644 >> index 0000000..387425b >> --- /dev/null >> +++ b/drivers/media/video/m5mols/Kconfig >> @@ -0,0 +1,6 @@ >> +config VIDEO_M5MOLS >> + tristate "Fujitsu M5MO-LS 8MP sensor support" >> + depends on I2C && VIDEO_V4L2 >> + ---help--- >> + This driver supports Fujitsu M5MO-LS camera sensor with ISP >> + >> diff --git a/drivers/media/video/m5mols/Makefile b/drivers/media/video/m5mols/Makefile >> new file mode 100644 >> index 0000000..b5d19bf >> --- /dev/null >> +++ b/drivers/media/video/m5mols/Makefile >> @@ -0,0 +1,3 @@ >> +m5mols-objs := m5mols_core.o m5mols_controls.o >> + >> +obj-$(CONFIG_VIDEO_M5MOLS) += m5mols.o >> diff --git a/drivers/media/video/m5mols/m5mols.h b/drivers/media/video/m5mols/m5mols.h >> new file mode 100644 >> index 0000000..320c976 >> --- /dev/null >> +++ b/drivers/media/video/m5mols/m5mols.h >> @@ -0,0 +1,261 @@ >> +/* >> + * Header for M5MOLS 8M Pixel camera sensor with ISP >> + * >> + * Copyright (C) 2011 Samsung Electronics Co., Ltd >> + * Author: HeungJun Kim, riverful.kim@xxxxxxxxxxx >> + * >> + * Copyright (C) 2009 Samsung Electronics Co., Ltd >> + * Author: Dongsoo Nathaniel Kim, dongsoo45.kim@xxxxxxxxxxx >> + * >> + * This program is free software; you can redistribute it and/or modify >> + * it under the terms of the GNU General Public License as published by >> + * the Free Software Foundation; either version 2 of the License, or >> + * (at your option) any later version. >> + */ >> + >> +#ifndef M5MOLS_H >> +#define M5MOLS_H >> + >> +#include <media/v4l2-subdev.h> >> +#include "m5mols_reg.h" >> + >> +#define v4l2msg(fmt, arg...) do { \ >> + v4l2_dbg(1, m5mols_debug, &info->sd, fmt, ## arg); \ >> +} while (0) >> + >> +extern int m5mols_debug; >> + >> +enum m5mols_mode { >> + MODE_SYSINIT, >> + MODE_PARMSET, >> + MODE_MONITOR, >> + MODE_UNKNOWN, >> +}; >> + >> +enum m5mols_i2c_size { >> + I2C_8BIT = 1, >> + I2C_16BIT = 2, >> + I2C_32BIT = 4, >> + I2C_MAX = 4, >> +}; >> + >> +enum m5mols_fps { >> + M5MOLS_FPS_AUTO = 0, >> + M5MOLS_FPS_10 = 10, >> + M5MOLS_FPS_12 = 12, >> + M5MOLS_FPS_15 = 15, >> + M5MOLS_FPS_20 = 20, >> + M5MOLS_FPS_21 = 21, >> + M5MOLS_FPS_22 = 22, >> + M5MOLS_FPS_23 = 23, >> + M5MOLS_FPS_24 = 24, >> + M5MOLS_FPS_30 = 30, >> + M5MOLS_FPS_MAX = M5MOLS_FPS_30, >> +}; >> + >> +enum m5mols_res_type { >> + M5MOLS_RES_MON, >> + /* It's not supported below yet. */ >> + M5MOLS_RES_PREVIEW, >> + M5MOLS_RES_THUMB, >> + M5MOLS_RES_CAPTURE, >> + M5MOLS_RES_UNKNOWN, >> +}; >> + >> +struct m5mols_resolution { >> + u8 value; >> + enum m5mols_res_type type; >> + u16 width; >> + u16 height; >> +}; >> + >> +struct m5mols_format { >> + enum v4l2_mbus_pixelcode code; >> + enum v4l2_colorspace colorspace; >> +}; >> + >> +struct m5mols_control { >> + u32 id; >> + s32 min; >> + s32 max; >> + u32 step; >> + s32 def; >> +}; > > This struct is no longer used and can be removed. > >> + >> +struct m5mols_version { >> + u8 ctm_code; /* customer code */ >> + u8 pj_code; /* project code */ >> + u16 fw; /* firmware version */ >> + u16 hw; /* hardware version */ >> + u16 parm; /* parameter version */ >> + u16 awb; /* AWB version */ >> +}; >> + >> +struct m5mols_info { >> + struct v4l2_subdev sd; >> + struct v4l2_mbus_framefmt fmt; >> + struct v4l2_fract tpf; >> + >> + struct v4l2_ctrl_handler handle; >> + struct { >> + /* support only AE of the Monitor Mode in this version */ >> + struct v4l2_ctrl *autoexposure; >> + struct v4l2_ctrl *exposure; >> + }; >> + struct v4l2_ctrl *autowb; >> + struct v4l2_ctrl *colorfx; >> + struct v4l2_ctrl *saturation; >> + >> + enum m5mols_mode mode; >> + enum m5mols_mode mode_backup; >> + >> + struct m5mols_version ver; >> + int gpio_nrst; >> + int supply_size; >> + struct regulator_bulk_data *supply; >> + bool power; >> + int (*set_power)(struct device *dev, int on); >> +}; >> + >> +/* control functions */ >> +int m5mols_set_ctrl(struct v4l2_ctrl *ctrl); >> + >> +/* I2C functions - referenced by below I2C helper functions */ >> +int m5mols_read_reg(struct v4l2_subdev *sd, enum m5mols_i2c_size size, >> + u8 category, u8 cmd, u32 *val); >> +int m5mols_write_reg(struct v4l2_subdev *sd, enum m5mols_i2c_size size, >> + u8 category, u8 cmd, u32 val); >> +int m5mols_check_busy(struct v4l2_subdev *sd, >> + u8 category, u8 cmd, u32 value); >> +int m5mols_set_mode(struct v4l2_subdev *sd, enum m5mols_mode mode); >> + >> +/* >> + * helper functions >> + */ >> +static inline struct m5mols_info *to_m5mols(struct v4l2_subdev *sd) >> +{ >> + return container_of(sd, struct m5mols_info, sd); >> +} >> + >> +static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl) >> +{ >> + return &container_of(ctrl->handler, struct m5mols_info, handle)->sd; >> +} >> + >> +static inline bool is_streaming(struct v4l2_subdev *sd) >> +{ >> + struct m5mols_info *info = to_m5mols(sd); >> + return info->mode == MODE_MONITOR; >> +} >> + >> +static inline bool is_stoped(struct v4l2_subdev *sd) > > Typo: it's 'stopped', not 'stoped'. > >> +{ >> + struct m5mols_info *info = to_m5mols(sd); >> + return info->mode != MODE_MONITOR; >> +} >> + >> +static inline bool is_powerup(struct v4l2_subdev *sd) >> +{ >> + struct m5mols_info *info = to_m5mols(sd); >> + return info->power; >> +} >> + >> +static inline bool is_powerdown(struct v4l2_subdev *sd) >> +{ >> + struct m5mols_info *info = to_m5mols(sd); >> + return !info->power; >> +} >> + >> +static inline int m5mols_set_mode_backup(struct v4l2_subdev *sd, > > I wouldn't make this inline. > >> + enum m5mols_mode mode) >> +{ >> + struct m5mols_info *info = to_m5mols(sd); >> + >> + info->mode_backup = info->mode; >> + return m5mols_set_mode(sd, mode); >> +} >> + >> +static inline int m5mols_set_mode_restore(struct v4l2_subdev *sd) >> +{ > > Ditto. > >> + struct m5mols_info *info = to_m5mols(sd); >> + int ret; >> + >> + ret = m5mols_set_mode(sd, info->mode_backup); >> + if (!ret) >> + info->mode = info->mode_backup; >> + return ret; >> +} >> + >> +static inline int __must_check i2c_w8_system(struct v4l2_subdev *sd, >> + u8 cmd, u32 val) >> +{ >> + return m5mols_write_reg(sd, I2C_8BIT, CAT_SYSTEM, cmd, val); >> +} >> + >> +static inline int __must_check i2c_w8_param(struct v4l2_subdev *sd, >> + u8 cmd, u32 val) >> +{ >> + return m5mols_write_reg(sd, I2C_8BIT, CAT_PARAM, cmd, val); >> +} >> + >> +static inline int __must_check i2c_w8_mon(struct v4l2_subdev *sd, >> + u8 cmd, u32 val) >> +{ >> + return m5mols_write_reg(sd, I2C_8BIT, CAT_MON, cmd, val); >> +} >> + >> +static inline int __must_check i2c_w8_ae(struct v4l2_subdev *sd, >> + u8 cmd, u32 val) >> +{ >> + return m5mols_write_reg(sd, I2C_8BIT, CAT_AE, cmd, val); >> +} >> + >> +static inline int __must_check i2c_w16_ae(struct v4l2_subdev *sd, >> + u8 cmd, u32 val) >> +{ >> + return m5mols_write_reg(sd, I2C_16BIT, CAT_AE, cmd, val); >> +} >> + >> +static inline int __must_check i2c_w8_wb(struct v4l2_subdev *sd, >> + u8 cmd, u32 val) >> +{ >> + return m5mols_write_reg(sd, I2C_8BIT, CAT_WB, cmd, val); >> +} >> + >> +static inline int __must_check i2c_w8_flash(struct v4l2_subdev *sd, >> + u8 cmd, u32 val) >> +{ >> + return m5mols_write_reg(sd, I2C_8BIT, CAT_FLASH, cmd, val); >> +} >> + >> +static inline int __must_check i2c_r8_system(struct v4l2_subdev *sd, >> + u8 cmd, u32 *val) >> +{ >> + return m5mols_read_reg(sd, I2C_8BIT, CAT_SYSTEM, cmd, val); >> +} >> + >> +static inline int __must_check i2c_r8_param(struct v4l2_subdev *sd, >> + u8 cmd, u32 *val) >> +{ >> + return m5mols_read_reg(sd, I2C_8BIT, CAT_PARAM, cmd, val); >> +} >> + >> +static inline int __must_check i2c_r8_mon(struct v4l2_subdev *sd, >> + u8 cmd, u32 *val) >> +{ >> + return m5mols_read_reg(sd, I2C_8BIT, CAT_MON, cmd, val); >> +} >> + >> +static inline int __must_check i2c_r8_ae(struct v4l2_subdev *sd, >> + u8 cmd, u32 *val) >> +{ >> + return m5mols_read_reg(sd, I2C_8BIT, CAT_AE, cmd, val); >> +} >> + >> +static inline int __must_check i2c_r16_ae(struct v4l2_subdev *sd, >> + u8 cmd, u32 *val) >> +{ >> + return m5mols_read_reg(sd, I2C_16BIT, CAT_AE, cmd, val); >> +} >> + >> +#endif /* M5MOLS_H */ >> diff --git a/drivers/media/video/m5mols/m5mols_controls.c b/drivers/media/video/m5mols/m5mols_controls.c >> new file mode 100644 >> index 0000000..d4d08df >> --- /dev/null >> +++ b/drivers/media/video/m5mols/m5mols_controls.c >> @@ -0,0 +1,173 @@ >> +/* >> + * Controls for M5MOLS 8M Pixel camera sensor with ISP >> + * >> + * Copyright (C) 2011 Samsung Electronics Co., Ltd >> + * Author: HeungJun Kim, riverful.kim@xxxxxxxxxxx >> + * >> + * Copyright (C) 2009 Samsung Electronics Co., Ltd >> + * Author: Dongsoo Nathaniel Kim, dongsoo45.kim@xxxxxxxxxxx >> + * >> + * This program is free software; you can redistribute it and/or modify >> + * it under the terms of the GNU General Public License as published by >> + * the Free Software Foundation; either version 2 of the License, or >> + * (at your option) any later version. >> + */ >> + >> +#include <linux/i2c.h> >> +#include <linux/videodev2.h> >> +#include <media/v4l2-ctrls.h> >> + >> +#include "m5mols.h" >> +#include "m5mols_reg.h" >> + >> +static int m5mols_set_ae_lock(struct m5mols_info *info, bool lock) >> +{ >> + struct v4l2_subdev *sd = &info->sd; >> + >> + return i2c_w8_ae(sd, CAT3_AE_LOCK, lock); >> +} >> + >> +static int m5mols_set_awb_lock(struct m5mols_info *info, bool lock) >> +{ >> + struct v4l2_subdev *sd = &info->sd; >> + >> + return i2c_w8_wb(sd, CAT6_AWB_LOCK, lock); >> +} >> + >> +static int m5mols_wb_mode(struct m5mols_info *info, struct v4l2_ctrl *ctrl) >> +{ >> + struct v4l2_subdev *sd = &info->sd; >> + static u8 m5mols_wb_auto[] = { 0x1, 0x2, }; /* 0:Auto , 1:Manual */ >> + int ret; >> + >> + if (ctrl->val < 0 || ctrl->val > 1) >> + return -EINVAL; >> + >> + ret = m5mols_set_awb_lock(info, false); >> + if (!ret) >> + ret = i2c_w8_wb(sd, CAT6_AWB_MODE, m5mols_wb_auto[ctrl->val]); >> + >> + return ret; >> +} >> + >> +static int m5mols_exposure_mode(struct m5mols_info *info, >> + struct v4l2_ctrl *ctrl) >> +{ >> + struct v4l2_subdev *sd = &info->sd; >> + int ret; >> + u8 val; >> + >> + if (ctrl->val == V4L2_EXPOSURE_MANUAL) >> + val = 0; >> + else if (ctrl->val == V4L2_EXPOSURE_AUTO) >> + val = 1; >> + else >> + return -EINVAL; > > If the min/max values of the control have been set up correctly when you > added the control, then there is no need to check the control value's range > again. > > So you can replace this with: > > val = (ctrl->val == V4L2_EXPOSURE_AUTO); > >> + >> + ret = m5mols_set_ae_lock(info, false); >> + if (ret) >> + return ret; >> + >> + return i2c_w8_ae(sd, CAT3_AE_MODE, val); >> +} >> + >> +static int m5mols_exposure(struct m5mols_info *info) >> +{ >> + struct v4l2_subdev *sd = &info->sd; >> + >> + return i2c_w16_ae(sd, CAT3_MANUAL_GAIN_MON_1, info->exposure->val); >> +} >> + >> +static int m5mols_set_saturation(struct m5mols_info *info, >> + struct v4l2_ctrl *ctrl) >> +{ >> + struct v4l2_subdev *sd = &info->sd; >> + static u8 m5mols_chroma_lvl[] = { >> + 0x1c, 0x3e, 0x5f, 0x80, 0xa1, 0xc2, 0xe4, >> + }; >> + int ret; >> + >> + if (ctrl->val < 0 || ctrl->val >= ARRAY_SIZE(m5mols_chroma_lvl)) >> + return -EINVAL; > > Same story: this check is probably not necessary. > >> + >> + ret = i2c_w8_mon(sd, CAT2_CHROMA_LVL, m5mols_chroma_lvl[ctrl->val]); >> + if (!ret) >> + ret = i2c_w8_mon(sd, CAT2_CHROMA_EN, true); >> + >> + return ret; >> +} >> + >> +static int m5mols_set_colorfx(struct m5mols_info *info, struct v4l2_ctrl *ctrl) >> +{ >> + struct v4l2_subdev *sd = &info->sd; >> + static u8 m5mols_effects_gamma[] = { /* cat 1: Effects */ >> + [V4L2_COLORFX_NEGATIVE] = 0x01, >> + [V4L2_COLORFX_EMBOSS] = 0x06, >> + [V4L2_COLORFX_SKETCH] = 0x07, >> + }; >> + static u8 m5mols_cfixb_chroma[] = { /* cat 2: Cr for effect */ >> + [V4L2_COLORFX_BW] = 0x0, >> + [V4L2_COLORFX_SEPIA] = 0xd8, >> + [V4L2_COLORFX_SKY_BLUE] = 0x40, >> + [V4L2_COLORFX_GRASS_GREEN] = 0xe0, >> + }; >> + static u8 m5mols_cfixr_chroma[] = { /* cat 2: Cb for effect */ >> + [V4L2_COLORFX_BW] = 0x0, >> + [V4L2_COLORFX_SEPIA] = 0x18, >> + [V4L2_COLORFX_SKY_BLUE] = 0x00, >> + [V4L2_COLORFX_GRASS_GREEN] = 0xe0, >> + }; >> + int ret = -EINVAL; >> + >> + switch (ctrl->val) { >> + case V4L2_COLORFX_NONE: >> + return i2c_w8_mon(sd, CAT2_COLOR_EFFECT, false); >> + case V4L2_COLORFX_BW: /* chroma: Gray */ >> + case V4L2_COLORFX_SEPIA: /* chroma: Sepia */ >> + case V4L2_COLORFX_SKY_BLUE: /* chroma: Blue */ >> + case V4L2_COLORFX_GRASS_GREEN: /* chroma: Green */ >> + ret = i2c_w8_mon(sd, CAT2_CFIXB, >> + m5mols_cfixb_chroma[ctrl->val]); >> + if (!ret) >> + ret = i2c_w8_mon(sd, CAT2_CFIXR, >> + m5mols_cfixr_chroma[ctrl->val]); >> + if (!ret) >> + ret = i2c_w8_mon(sd, CAT2_COLOR_EFFECT, true); >> + return ret; >> + case V4L2_COLORFX_NEGATIVE: /* gamma: Negative */ >> + case V4L2_COLORFX_EMBOSS: /* gamma: Emboss */ >> + case V4L2_COLORFX_SKETCH: /* gamma: Outline */ >> + ret = i2c_w8_param(sd, CAT1_EFFECT, >> + m5mols_effects_gamma[ctrl->val]); >> + if (!ret) >> + ret = i2c_w8_mon(sd, CAT2_COLOR_EFFECT, true); >> + return ret; >> + } >> + >> + return ret; >> +} >> + >> +int m5mols_set_ctrl(struct v4l2_ctrl *ctrl) >> +{ >> + struct v4l2_subdev *sd = to_sd(ctrl); >> + struct m5mols_info *info = to_m5mols(sd); >> + int ret; >> + >> + switch (ctrl->id) { >> + case V4L2_CID_EXPOSURE_AUTO: >> + if (!ctrl->is_new) >> + ctrl->val = V4L2_EXPOSURE_MANUAL; >> + ret = m5mols_exposure_mode(info, ctrl); >> + if (!ret && ctrl->val == V4L2_EXPOSURE_MANUAL) >> + ret = m5mols_exposure(info); >> + return ret; >> + case V4L2_CID_AUTO_WHITE_BALANCE: >> + return m5mols_wb_mode(info, ctrl); >> + case V4L2_CID_SATURATION: >> + return m5mols_set_saturation(info, ctrl); >> + case V4L2_CID_COLORFX: >> + return m5mols_set_colorfx(info, ctrl); >> + } >> + >> + return -EINVAL; >> +} >> diff --git a/drivers/media/video/m5mols/m5mols_core.c b/drivers/media/video/m5mols/m5mols_core.c >> new file mode 100644 >> index 0000000..d0cacbd >> --- /dev/null >> +++ b/drivers/media/video/m5mols/m5mols_core.c >> @@ -0,0 +1,898 @@ >> +/* >> + * Driver for M5MOLS 8M Pixel camera sensor with ISP >> + * >> + * Copyright (C) 2011 Samsung Electronics Co., Ltd >> + * Author: HeungJun Kim, riverful.kim@xxxxxxxxxxx >> + * >> + * Copyright (C) 2009 Samsung Electronics Co., Ltd >> + * Author: Dongsoo Nathaniel Kim, dongsoo45.kim@xxxxxxxxxxx >> + * >> + * This program is free software; you can redistribute it and/or modify >> + * it under the terms of the GNU General Public License as published by >> + * the Free Software Foundation; either version 2 of the License, or >> + * (at your option) any later version. >> + */ >> + >> +#include <linux/i2c.h> >> +#include <linux/irq.h> >> +#include <linux/interrupt.h> >> +#include <linux/delay.h> >> +#include <linux/version.h> >> +#include <linux/gpio.h> >> +#include <linux/regulator/consumer.h> >> + >> +#include <linux/videodev2.h> >> +#include <media/v4l2-ctrls.h> >> +#include <media/v4l2-device.h> >> +#include <media/v4l2-subdev.h> >> +#include <media/m5mols.h> >> + >> +#include "m5mols.h" >> +#include "m5mols_reg.h" >> + >> +int m5mols_debug; >> + >> +module_param(m5mols_debug, int, 0644); >> + >> +#define MOD_NAME "M5MOLS" >> +#define M5MOLS_I2C_CHECK_RETRY 50 >> + >> +/* M5MOLS mode */ >> +static u8 m5mols_reg_mode[] = { >> + [MODE_SYSINIT] = 0x00, >> + [MODE_PARMSET] = 0x01, >> + [MODE_MONITOR] = 0x02, >> + [MODE_UNKNOWN] = 0xff, >> +}; >> + >> +/* M5MOLS regulator consumer names */ >> +static const char *supply_names[] = { >> + /* The DEFAULT names of power are referenced with M5MO datasheet. */ >> + "core", /* core power - 1.2v, generally at the M5MOLS */ >> + "d_sensor", /* sensor power 1 - 1.8v */ >> + "dig_18", /* digital power 1 - 1.8v */ >> + "dig_28", /* digital power 2 - 2.8v */ >> + "a_sensor", /* analog power */ >> + "dig_12", /* digital power 3 - 1.2v */ >> +}; >> + >> +/* M5MOLS default format (codes, sizes, preset values) */ >> +static const struct v4l2_mbus_framefmt default_fmt = { >> + .width = 1920, >> + .height = 1080, >> + .code = V4L2_MBUS_FMT_VYUY8_2X8, >> + .field = V4L2_FIELD_NONE, >> + .colorspace = V4L2_COLORSPACE_JPEG, >> +}; >> +static const struct m5mols_format m5mols_formats[] = { >> + { >> + .code = V4L2_MBUS_FMT_VYUY8_2X8, >> + .colorspace = V4L2_COLORSPACE_JPEG, >> + }, >> +}; >> +static const struct m5mols_resolution m5mols_resolutions[] = { >> + /* monitor size */ >> + { 0x01, M5MOLS_RES_MON, 128, 96 }, /* SUB-QCIF */ >> + { 0x03, M5MOLS_RES_MON, 160, 120 }, /* QQVGA */ >> + { 0x05, M5MOLS_RES_MON, 176, 144 }, /* QCIF */ >> + { 0x06, M5MOLS_RES_MON, 176, 176 }, /* 176*176 */ >> + { 0x08, M5MOLS_RES_MON, 240, 320 }, /* 1 QVGA */ >> + { 0x09, M5MOLS_RES_MON, 320, 240 }, /* QVGA */ >> + { 0x0c, M5MOLS_RES_MON, 240, 400 }, /* l WQVGA */ >> + { 0x0d, M5MOLS_RES_MON, 400, 240 }, /* WQVGA */ >> + { 0x0e, M5MOLS_RES_MON, 352, 288 }, /* CIF */ >> + { 0x13, M5MOLS_RES_MON, 480, 360 }, /* 480*360 */ >> + { 0x15, M5MOLS_RES_MON, 640, 360 }, /* qHD */ >> + { 0x17, M5MOLS_RES_MON, 640, 480 }, /* VGA */ >> + { 0x18, M5MOLS_RES_MON, 720, 480 }, /* 720x480 */ >> + { 0x1a, M5MOLS_RES_MON, 800, 480 }, /* WVGA */ >> + { 0x1f, M5MOLS_RES_MON, 800, 600 }, /* SVGA */ >> + { 0x21, M5MOLS_RES_MON, 1280, 720 }, /* HD */ >> + { 0x25, M5MOLS_RES_MON, 1920, 1080 }, /* 1080p */ >> + { 0x29, M5MOLS_RES_MON, 3264, 2448 }, /* 8M (2.63fps@3264*2448) */ >> + { 0x30, M5MOLS_RES_MON, 320, 240 }, /* 60fps for slow motion */ >> + { 0x31, M5MOLS_RES_MON, 320, 240 }, /* 120fps for slow motion */ >> + { 0x39, M5MOLS_RES_MON, 800, 602 }, /* AHS_MON debug */ >> +}; >> + >> +/* M5MOLS default FPS */ >> +static const struct v4l2_fract default_fps = { >> + .numerator = 1, >> + .denominator = M5MOLS_FPS_AUTO, >> +}; >> + >> +static u8 m5mols_reg_fps[] = { >> + [M5MOLS_FPS_AUTO] = 0x01, >> + [M5MOLS_FPS_10] = 0x05, >> + [M5MOLS_FPS_12] = 0x04, >> + [M5MOLS_FPS_15] = 0x03, >> + [M5MOLS_FPS_20] = 0x08, >> + [M5MOLS_FPS_21] = 0x09, >> + [M5MOLS_FPS_22] = 0x0a, >> + [M5MOLS_FPS_23] = 0x0b, >> + [M5MOLS_FPS_24] = 0x07, >> + [M5MOLS_FPS_30] = 0x02, >> +}; >> + >> +static u32 m5mols_swap_byte(u8 *data, enum m5mols_i2c_size size) >> +{ >> + if (size == I2C_8BIT) >> + return *data; >> + else if (size == I2C_16BIT) > > 'else' can be removed. > >> + return be16_to_cpu(*((u16 *)data)); >> + else > > Ditto. > >> + return be32_to_cpu(*((u32 *)data)); >> +} >> + >> +/* >> + * m5mols_read_reg/m5mols_write_reg - handle sensor's I2C communications. >> + * >> + * The I2C command packet of M5MOLS is made up 3 kinds of I2C bytes(category, >> + * command, bytes). Reference m5mols.h. >> + * >> + * The packet is needed 2, when M5MOLS is read through I2C. >> + * The packet is needed 1, when M5MOLS is written through I2C. >> + * >> + * I2C packet common order(including both reading/writing) >> + * 1st : size (data size + 4) >> + * 2nd : READ/WRITE (R - 0x01, W - 0x02) >> + * 3rd : Category >> + * 4th : Command >> + * >> + * I2C packet order for READING operation >> + * 5th : data real size for reading >> + * And, read another I2C packet again, until data size. >> + * >> + * I2C packet order for WRITING operation >> + * 5th to 8th: an actual data to write >> + */ >> + >> +#define M5MOLS_BYTE_READ 0x01 >> +#define M5MOLS_BYTE_WRITE 0x02 >> + >> +int m5mols_read_reg(struct v4l2_subdev *sd, >> + enum m5mols_i2c_size size, >> + u8 category, u8 cmd, u32 *val) >> +{ >> + struct i2c_client *client = v4l2_get_subdevdata(sd); >> + struct i2c_msg msg[1]; >> + u8 wbuf[5], rbuf[I2C_MAX + 1]; >> + int ret; >> + >> + if (!client->adapter) >> + return -ENODEV; >> + >> + if (size != I2C_8BIT && size != I2C_16BIT && size != I2C_32BIT) >> + return -EINVAL; >> + >> + /* 1st I2C operation, for writing info to read. */ >> + msg->addr = client->addr; >> + msg->flags = 0; >> + msg->len = 5; /* 1(cmd size per bytes) + 4 */ >> + msg->buf = wbuf; >> + wbuf[0] = 5; /* 1(cmd size per bytes) + 4 */ >> + wbuf[1] = M5MOLS_BYTE_READ; >> + wbuf[2] = category; >> + wbuf[3] = cmd; >> + wbuf[4] = size; >> + >> + ret = i2c_transfer(client->adapter, msg, 1); >> + if (ret < 0) { >> + dev_err(&client->dev, "failed READ-1[%d] at " >> + "cat[%02x] cmd[%02x]\n", >> + size, category, cmd); >> + return ret; >> + } >> + >> + /* 2nd I2C operation, for reading data. */ >> + msg->addr = client->addr; >> + msg->flags = I2C_M_RD; >> + msg->len = size + 1; >> + msg->buf = rbuf; >> + >> + ret = i2c_transfer(client->adapter, msg, 1); >> + if (ret < 0) { >> + dev_err(&client->dev, "failed READ-2[%d] at " >> + "cat[%02x] cmd[%02x]\n", >> + size, category, cmd); >> + return ret; >> + } > > This is dangerous: you should do the write and read in one operation by giving > both msgs to i2c_transfer. If you split it like this, then it is possible for > another i2c transfer to go in between the write and read. > > By doing both with a single i2c_transfer call the i2c core will serialize this > properly. > >> + >> + *val = m5mols_swap_byte(&rbuf[1], size); >> + >> + usleep_range(15000, 20000); /* must be for stabilization */ >> + >> + return 0; >> +} >> + >> +int m5mols_write_reg(struct v4l2_subdev *sd, >> + enum m5mols_i2c_size size, >> + u8 category, u8 cmd, u32 val) >> +{ >> + struct i2c_client *client = v4l2_get_subdevdata(sd); >> + struct device *cdev = &client->dev; >> + struct i2c_msg msg[1]; >> + u8 wbuf[I2C_MAX + 4]; >> + u32 *buf = (u32 *)&wbuf[4]; >> + int ret; >> + >> + if (!client->adapter) >> + return -ENODEV; >> + >> + if (size != I2C_8BIT && size != I2C_16BIT && size != I2C_32BIT) { >> + dev_err(cdev, "Wrong data size\n"); >> + return -EINVAL; >> + } >> + >> + msg->addr = client->addr; >> + msg->flags = 0; >> + msg->len = size + 4; >> + msg->buf = wbuf; >> + wbuf[0] = size + 4; >> + wbuf[1] = M5MOLS_BYTE_WRITE; >> + wbuf[2] = category; >> + wbuf[3] = cmd; >> + >> + *buf = m5mols_swap_byte((u8 *)&val, size); >> + >> + ret = i2c_transfer(client->adapter, msg, 1); >> + if (ret < 0) { >> + dev_err(&client->dev, "failed WRITE[%d] at " >> + "cat[%02x] cmd[%02x], ret %d\n", >> + size, msg->buf[2], msg->buf[3], ret); >> + return ret; >> + } >> + >> + usleep_range(15000, 20000); /* must be for stabilization */ >> + >> + return 0; >> +} >> + >> +int m5mols_check_busy(struct v4l2_subdev *sd, >> + u8 category, u8 cmd, u32 value) >> +{ >> + u32 busy, i; >> + int ret; >> + >> + for (i = 0; i < M5MOLS_I2C_CHECK_RETRY; i++) { >> + ret = m5mols_read_reg(sd, I2C_8BIT, category, cmd, &busy); >> + if (ret < 0) >> + return ret; >> + >> + if (busy == value) /* bingo */ >> + return 0; >> + >> + mdelay(1); >> + } >> + >> + return -EBUSY; >> +} >> + >> +/* >> + * m5mols_set_mode - change and set mode of M5MOLS. >> + * >> + * This driver supports now only 3 modes(System, Monitor, Parameter). >> + */ >> +int m5mols_set_mode(struct v4l2_subdev *sd, enum m5mols_mode mode) >> +{ >> + struct m5mols_info *info = to_m5mols(sd); >> + struct i2c_client *client = v4l2_get_subdevdata(sd); >> + struct device *cdev = &client->dev; >> + const char *m5mols_str_mode[] = { >> + "System initialization", >> + "Parameter setting", >> + "Monitor setting", >> + "Unknown", >> + }; >> + int ret = 0; >> + >> + if (mode < MODE_SYSINIT || mode > MODE_UNKNOWN) >> + return -EINVAL; >> + >> + ret = i2c_w8_system(sd, CAT0_SYSMODE, m5mols_reg_mode[mode]); >> + if (!ret) >> + ret = m5mols_check_busy(sd, CAT_SYSTEM, CAT0_SYSMODE, >> + m5mols_reg_mode[mode]); >> + if (ret < 0) >> + return ret; >> + >> + info->mode = m5mols_reg_mode[mode]; >> + dev_dbg(cdev, " mode: %s\n", m5mols_str_mode[mode]); >> + >> + return ret; >> +} >> + >> +/* >> + * get_version - get M5MOLS sensor versions. >> + */ >> +static int get_version(struct v4l2_subdev *sd) >> +{ >> + struct m5mols_info *info = to_m5mols(sd); >> + union { >> + struct m5mols_version ver; >> + u8 bytes[10]; >> + } value; >> + int ret, i; >> + >> + for (i = CAT0_CUSTOMER_CODE; i <= CAT0_VERSION_AWB_L; i++) { >> + ret = i2c_r8_system(sd, i, (u32 *)&value.bytes[i]); >> + if (ret) >> + return ret; >> + } >> + >> + info->ver = value.ver; >> + >> + info->ver.fw = be16_to_cpu(info->ver.fw); >> + info->ver.hw = be16_to_cpu(info->ver.hw); >> + info->ver.parm = be16_to_cpu(info->ver.parm); >> + info->ver.awb = be16_to_cpu(info->ver.awb); >> + >> + return ret; >> +} >> + >> +static void m5mols_show_version(struct v4l2_subdev *sd) >> +{ >> + struct i2c_client *client = v4l2_get_subdevdata(sd); >> + struct device *dev = &client->dev; >> + struct m5mols_info *info = to_m5mols(sd); >> + >> + dev_info(dev, "customer code\t0x%02x\n", info->ver.ctm_code); >> + dev_info(dev, "project code\t0x%02x\n", info->ver.pj_code); >> + dev_info(dev, "firmware version\t0x%04x\n", info->ver.fw); >> + dev_info(dev, "hardware version\t0x%04x\n", info->ver.hw); >> + dev_info(dev, "parameter version\t0x%04x\n", info->ver.parm); >> + dev_info(dev, "AWB version\t0x%04x\n", info->ver.awb); >> +} >> + >> +/* >> + * get_res_preset - find out M5MOLS register value from requested resolution. >> + * >> + * @width: requested width >> + * @height: requested height >> + * @type: requested type of each modes. It supports only monitor mode now. >> + */ >> +static int get_res_preset(struct v4l2_subdev *sd, u16 width, u16 height, >> + enum m5mols_res_type type) >> +{ >> + struct m5mols_info *info = to_m5mols(sd); >> + int i; >> + >> + for (i = 0; i < ARRAY_SIZE(m5mols_resolutions); i++) { >> + if ((m5mols_resolutions[i].type == type) && >> + (m5mols_resolutions[i].width == width) && >> + (m5mols_resolutions[i].height == height)) >> + break; >> + } >> + >> + if (i >= ARRAY_SIZE(m5mols_resolutions)) { >> + v4l2msg("no matching resolution\n"); >> + return -EINVAL; >> + } >> + >> + return m5mols_resolutions[i].value; >> +} >> + >> +/* >> + * get_fps - calc & check FPS from v4l2_captureparm, if FPS is adequate, set. >> + * >> + * In M5MOLS case, the denominator means FPS. The each value of numerator and >> + * denominator should not be minus. If numerator is 0, it sets AUTO FPS. If >> + * numerator is not 1, it recalculates denominator. After it checks, the >> + * denominator is set to timeperframe.denominator, and used by FPS. >> + */ >> +static int get_fps(struct v4l2_subdev *sd, >> + struct v4l2_captureparm *parm) >> +{ >> + int numerator = parm->timeperframe.numerator; >> + int denominator = parm->timeperframe.denominator; >> + >> + /* The denominator should be +, except 0. The numerator shoud be +. */ >> + if (numerator < 0 || denominator <= 0) >> + return -EINVAL; >> + >> + /* The numerator is 0, return auto fps. */ >> + if (numerator == 0) { >> + parm->timeperframe.denominator = M5MOLS_FPS_AUTO; >> + return 0; >> + } >> + >> + /* calc FPS(not time per frame) per 1 numerator */ >> + denominator = denominator / numerator; >> + >> + if (denominator < M5MOLS_FPS_AUTO || denominator > M5MOLS_FPS_MAX) >> + return -EINVAL; >> + >> + if (!m5mols_reg_fps[denominator]) >> + return -EINVAL; >> + >> + return 0; >> +} >> + >> +static int m5mols_g_mbus_fmt(struct v4l2_subdev *sd, >> + struct v4l2_mbus_framefmt *ffmt) >> +{ >> + struct m5mols_info *info = to_m5mols(sd); >> + >> + *ffmt = info->fmt; >> + >> + return 0; >> +} >> + >> +static int m5mols_s_mbus_fmt(struct v4l2_subdev *sd, >> + struct v4l2_mbus_framefmt *ffmt) >> +{ >> + struct m5mols_info *info = to_m5mols(sd); >> + int size; >> + int ret = -EINVAL; >> + >> + size = get_res_preset(sd, ffmt->width, ffmt->height, >> + M5MOLS_RES_MON); >> + if (size < 0) >> + return -EINVAL; >> + >> + ret = m5mols_set_mode(sd, MODE_PARMSET); >> + if (!ret) >> + ret = i2c_w8_param(sd, CAT1_MONITOR_SIZE, (u8)size); >> + if (!ret) { >> + info->fmt = default_fmt; >> + info->fmt.width = ffmt->width; >> + info->fmt.height = ffmt->height; >> + >> + *ffmt = info->fmt; >> + } >> + >> + return ret; >> +} >> + >> +static int m5mols_enum_mbus_fmt(struct v4l2_subdev *sd, unsigned int index, >> + enum v4l2_mbus_pixelcode *code) >> +{ >> + if (!code || index >= ARRAY_SIZE(m5mols_formats)) >> + return -EINVAL; >> + >> + *code = m5mols_formats[index].code; >> + >> + return 0; >> +} >> + >> +static int m5mols_g_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *parms) >> +{ >> + struct m5mols_info *info = to_m5mols(sd); >> + struct v4l2_captureparm *cp = &parms->parm.capture; >> + >> + if (parms->type != V4L2_BUF_TYPE_VIDEO_CAPTURE && >> + parms->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) >> + return -EINVAL; >> + >> + cp->capability = V4L2_CAP_TIMEPERFRAME; >> + cp->timeperframe = info->tpf; >> + >> + return 0; >> +} >> + >> +static int m5mols_s_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *parms) >> +{ >> + struct m5mols_info *info = to_m5mols(sd); >> + struct v4l2_captureparm *cp = &parms->parm.capture; >> + int ret = -EINVAL; >> + >> + if (parms->type != V4L2_BUF_TYPE_VIDEO_CAPTURE && >> + parms->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) >> + return -EINVAL; >> + >> + ret = m5mols_set_mode_backup(sd, MODE_PARMSET); >> + if (!ret) >> + ret = get_fps(sd, cp); /* set right FPS to denominator. */ >> + if (!ret) >> + ret = i2c_w8_param(sd, CAT1_MONITOR_FPS, >> + m5mols_reg_fps[cp->timeperframe.denominator]); >> + if (!ret) >> + ret = m5mols_set_mode_restore(sd); >> + if (!ret) { >> + cp->capability = V4L2_CAP_TIMEPERFRAME; >> + info->tpf = cp->timeperframe; >> + } >> + >> + v4l2msg("denominator: %d / numerator: %d.\n", >> + cp->timeperframe.denominator, cp->timeperframe.numerator); >> + >> + return ret; >> +} >> + >> +static int m5mols_s_stream(struct v4l2_subdev *sd, int enable) >> +{ >> + if (enable) { >> + if (is_stoped(sd)) >> + return m5mols_set_mode(sd, MODE_MONITOR); >> + else > > 'else' not needed. > >> + return -EINVAL; >> + } else { > > Ditto. > >> + if (is_streaming(sd)) >> + return m5mols_set_mode(sd, MODE_PARMSET); >> + else > > Ditto. > >> + return -EINVAL; >> + } >> +} >> + >> +static const struct v4l2_subdev_video_ops m5mols_video_ops = { >> + .g_mbus_fmt = m5mols_g_mbus_fmt, >> + .s_mbus_fmt = m5mols_s_mbus_fmt, >> + .enum_mbus_fmt = m5mols_enum_mbus_fmt, >> + .g_parm = m5mols_g_parm, >> + .s_parm = m5mols_s_parm, >> + .s_stream = m5mols_s_stream, >> +}; >> + >> +static int m5mols_s_ctrl(struct v4l2_ctrl *ctrl) >> +{ >> + struct v4l2_subdev *sd = to_sd(ctrl); >> + int ret; >> + >> + ret = m5mols_set_mode_backup(sd, MODE_PARMSET); >> + if (!ret) >> + ret = m5mols_set_ctrl(ctrl); >> + if (!ret) >> + ret = m5mols_set_mode_restore(sd); >> + >> + return ret; >> +} >> + >> +static const struct v4l2_ctrl_ops m5mols_ctrl_ops = { >> + .s_ctrl = m5mols_s_ctrl, >> +}; >> + >> +/* >> + * m5mols_sensor_power - handle sensor power up/down. >> + * >> + * @enable: If it is true, power up. If is not, power down. >> + */ >> +static int m5mols_sensor_power(struct m5mols_info *info, bool enable) >> +{ >> + struct v4l2_subdev *sd = &info->sd; >> + struct i2c_client *c = v4l2_get_subdevdata(sd); >> + int ret; >> + >> + if (enable) { >> + if (!is_powerdown(sd)) >> + return 0; >> + >> + if (gpio_is_valid(info->gpio_nrst)) >> + gpio_set_value(info->gpio_nrst, 0); >> + >> + if (info->set_power) { >> + ret = info->set_power(&c->dev, 1); >> + if (ret) >> + return ret; >> + } >> + >> + ret = regulator_bulk_enable(info->supply_size, >> + info->supply); >> + if (ret) >> + return ret; >> + >> + if (gpio_is_valid(info->gpio_nrst)) { >> + gpio_set_value(info->gpio_nrst, 0); >> + msleep(100); >> + gpio_set_value(info->gpio_nrst, 1); >> + msleep(100); >> + } >> + >> + info->power = true; >> + } else { >> + if (!is_powerup(sd)) >> + return 0; >> + >> + if (gpio_is_valid(info->gpio_nrst)) { >> + gpio_set_value(info->gpio_nrst, 0); >> + msleep(100); >> + } >> + >> + ret = regulator_bulk_disable(info->supply_size, >> + info->supply); >> + if (ret) >> + return ret; >> + >> + if (info->set_power) { >> + ret = info->set_power(&c->dev, 0); >> + if (ret) >> + return ret; >> + } >> + >> + if (gpio_is_valid(info->gpio_nrst)) >> + gpio_set_value(info->gpio_nrst, 0); >> + >> + info->power = false; >> + } >> + >> + return ret; >> +} >> + >> +/* >> + * m5mols_sensor_armboot - booting M5MOLS internal ARM core-controller. >> + * >> + * It makes to ready M5MOLS for I2C & MIPI interface. After it's powered up, >> + * it activates if it gets armboot command for I2C interface. After getting >> + * cmd, it must wait about least 500ms referenced by M5MOLS datasheet. >> + */ >> +static int m5mols_sensor_armboot(struct v4l2_subdev *sd) >> +{ >> + struct i2c_client *client = v4l2_get_subdevdata(sd); >> + static u8 m5mols_mipi_value = 0x02; >> + int ret; >> + >> + /* 1. ARM booting */ >> + ret = i2c_w8_flash(sd, CAT0_INT_ROOTEN, true); >> + if (ret < 0) >> + return ret; >> + >> + msleep(500); >> + dev_dbg(&client->dev, "Success ARM Booting\n"); >> + >> + ret = m5mols_set_mode(sd, MODE_PARMSET); >> + if (!ret) >> + ret = get_version(sd); >> + if (!ret) >> + ret = i2c_w8_param(sd, CAT1_DATA_INTERFACE, m5mols_mipi_value); >> + >> + m5mols_show_version(sd); >> + >> + return ret; >> +} >> + >> +/* >> + * m5mols_init_controls - initialization using v4l2_ctrl. >> + */ >> +static int m5mols_init_controls(struct m5mols_info *info) >> +{ >> + struct v4l2_subdev *sd = &info->sd; >> + struct i2c_client *client = v4l2_get_subdevdata(sd); >> + u16 max_ex_mon; >> + int ret; >> + >> + /* check minimum & maximum of M5MOLS controls */ >> + ret = i2c_r16_ae(sd, CAT3_MAX_GAIN_MON_1, (u32 *)&max_ex_mon); >> + if (!ret) >> + return ret; >> + >> + /* set the controls using v4l2 control frameworks */ >> + v4l2_ctrl_handler_init(&info->handle, 5); >> + >> + info->colorfx = v4l2_ctrl_new_std_menu(&info->handle, >> + &m5mols_ctrl_ops, V4L2_CID_COLORFX, >> + 9, 1, V4L2_COLORFX_NONE); >> + info->autoexposure = v4l2_ctrl_new_std_menu(&info->handle, >> + &m5mols_ctrl_ops, V4L2_CID_EXPOSURE_AUTO, >> + 1, 0, V4L2_EXPOSURE_AUTO); >> + info->exposure = v4l2_ctrl_new_std(&info->handle, >> + &m5mols_ctrl_ops, V4L2_CID_EXPOSURE, >> + 0, max_ex_mon, 1, (int)max_ex_mon/2); >> + info->autowb = v4l2_ctrl_new_std(&info->handle, >> + &m5mols_ctrl_ops, V4L2_CID_AUTO_WHITE_BALANCE, >> + 0, 1, 1, 1); >> + info->saturation = v4l2_ctrl_new_std(&info->handle, >> + &m5mols_ctrl_ops, V4L2_CID_SATURATION, >> + 0, 6, 1, 3); >> + >> + sd->ctrl_handler = &info->handle; >> + if (info->handle.error) { >> + dev_err(&client->dev, "Failed to init controls, %d\n", ret); >> + v4l2_ctrl_handler_free(&info->handle); >> + return info->handle.error; >> + } >> + >> + v4l2_ctrl_cluster(2, &info->autoexposure); >> + v4l2_ctrl_handler_setup(&info->handle); >> + >> + return 0; >> +} >> + >> +/* >> + * m5mols_setup_default - set default size & fps in the monitor mode. >> + */ >> +static int m5mols_setup_default(struct v4l2_subdev *sd) >> +{ >> + struct m5mols_info *info = to_m5mols(sd); >> + int value; >> + int ret = -EINVAL; >> + >> + value = get_res_preset(sd, default_fmt.width, default_fmt.height, >> + M5MOLS_RES_MON); >> + if (value >= 0) >> + ret = i2c_w8_param(sd, CAT1_MONITOR_SIZE, (u8)value); >> + if (!ret) >> + ret = i2c_w8_param(sd, CAT1_MONITOR_FPS, >> + m5mols_reg_fps[default_fps.denominator]); >> + if (!ret) >> + ret = m5mols_init_controls(info); >> + if (!ret) { >> + info->fmt = default_fmt; >> + info->tpf = default_fps; >> + >> + ret = 0; >> + } >> + >> + return ret; >> +} >> + >> +static int m5mols_s_power(struct v4l2_subdev *sd, int on) >> +{ >> + struct m5mols_info *info = to_m5mols(sd); >> + int ret; >> + >> + if (on) { >> + ret = m5mols_sensor_power(info, true); >> + if (!ret) >> + ret = m5mols_sensor_armboot(sd); >> + if (!ret) >> + ret = m5mols_setup_default(sd); >> + } else { >> + ret = m5mols_sensor_power(info, false); >> + } >> + >> + return ret; >> +} >> + >> +static int m5mols_log_status(struct v4l2_subdev *sd) >> +{ >> + struct m5mols_info *info = to_m5mols(sd); >> + >> + v4l2_ctrl_handler_log_status(&info->handle, sd->name); >> + >> + return 0; >> +} >> + >> +static const struct v4l2_subdev_core_ops m5mols_core_ops = { >> + .s_power = m5mols_s_power, >> + .g_ctrl = v4l2_subdev_g_ctrl, >> + .s_ctrl = v4l2_subdev_s_ctrl, >> + .queryctrl = v4l2_subdev_queryctrl, >> + .querymenu = v4l2_subdev_querymenu, >> + .g_ext_ctrls = v4l2_subdev_g_ext_ctrls, >> + .try_ext_ctrls = v4l2_subdev_try_ext_ctrls, >> + .s_ext_ctrls = v4l2_subdev_s_ext_ctrls, >> + .log_status = m5mols_log_status, >> +}; >> + >> +static const struct v4l2_subdev_ops m5mols_ops = { >> + .core = &m5mols_core_ops, >> + .video = &m5mols_video_ops, >> +}; >> + >> +static int m5mols_get_gpio(struct m5mols_info *info, >> + const struct m5mols_platform_data *pdata) >> +{ >> + >> + if (!gpio_is_valid(pdata->gpio_nrst)) >> + return -EINVAL; >> + >> + if (gpio_request(pdata->gpio_nrst, "M5MOLS-NRST")) >> + return -EINVAL; >> + >> + info->gpio_nrst = pdata->gpio_nrst; >> + gpio_direction_output(info->gpio_nrst, 0); >> + gpio_export(info->gpio_nrst, 0); >> + >> + return 0; >> +} >> + >> +static int m5mols_get_regulators(struct m5mols_info *info, >> + const struct m5mols_platform_data *pdata, >> + struct i2c_client *c) >> +{ >> + int i = 0; >> + >> + info->supply = kzalloc(sizeof(struct regulator_bulk_data) * >> + ARRAY_SIZE(supply_names), GFP_KERNEL); >> + if (!info->supply) >> + return -ENOMEM; >> + >> + info->supply_size = ARRAY_SIZE(supply_names); >> + for (i = 0; i < info->supply_size; i++) >> + info->supply[i].supply = supply_names[i]; >> + >> + return regulator_bulk_get(&c->dev, info->supply_size, info->supply); >> +} >> + >> +static int m5mols_probe(struct i2c_client *client, >> + const struct i2c_device_id *id) >> +{ >> + const struct m5mols_platform_data *pdata = >> + client->dev.platform_data; >> + struct m5mols_info *info; >> + struct v4l2_subdev *sd; >> + int ret = 0; >> + >> + if (pdata == NULL) { >> + dev_err(&client->dev, "No platform data\n"); >> + return -EIO; >> + } >> + >> + info = kzalloc(sizeof(struct m5mols_info), GFP_KERNEL); >> + if (info == NULL) { >> + dev_err(&client->dev, "Failed to allocate info\n"); >> + return -ENOMEM; >> + } >> + >> + info->set_power = pdata->set_power; >> + >> + ret = m5mols_get_gpio(info, pdata); >> + if (ret) { >> + dev_err(&client->dev, "Failed to set gpio, %d\n", ret); >> + goto out_gpio; >> + } >> + >> + ret = m5mols_get_regulators(info, pdata, client); >> + if (ret) { >> + dev_err(&client->dev, "Failed to get regulators, %d\n", ret); >> + goto out_reg; >> + } >> + >> + sd = &info->sd; >> + strlcpy(sd->name, MOD_NAME, sizeof(sd->name)); >> + v4l2_i2c_subdev_init(sd, client, &m5mols_ops); >> + >> + v4l2msg("probed m5mols driver.\n"); >> + >> + return 0; >> + >> +out_reg: >> + regulator_bulk_free(info->supply_size, info->supply); >> + kfree(info->supply); >> +out_gpio: >> + if (gpio_is_valid(info->gpio_nrst)) >> + gpio_free(info->gpio_nrst); >> + kfree(info); >> + >> + return ret; >> +} >> + >> +static int m5mols_remove(struct i2c_client *client) >> +{ >> + struct v4l2_subdev *sd = i2c_get_clientdata(client); >> + struct m5mols_info *info = to_m5mols(sd); >> + >> + v4l2_device_unregister_subdev(sd); >> + v4l2_ctrl_handler_free(&info->handle); >> + >> + regulator_bulk_free(info->supply_size, info->supply); >> + if (gpio_is_valid(info->gpio_nrst)) >> + gpio_free(info->gpio_nrst); >> + >> + kfree(info->supply); >> + kfree(info); >> + >> + return 0; >> +} >> + >> +static const struct i2c_device_id m5mols_id[] = { >> + { MOD_NAME, 0 }, >> + { }, >> +}; >> +MODULE_DEVICE_TABLE(i2c, m5mols_id); >> + >> +static struct i2c_driver m5mols_i2c_driver = { >> + .driver = { >> + .name = MOD_NAME, >> + }, >> + .probe = m5mols_probe, >> + .remove = m5mols_remove, >> + .id_table = m5mols_id, >> +}; >> + >> +static int __init m5mols_mod_init(void) >> +{ >> + return i2c_add_driver(&m5mols_i2c_driver); >> +} >> + >> +static void __exit m5mols_mod_exit(void) >> +{ >> + i2c_del_driver(&m5mols_i2c_driver); >> +} >> + >> +module_init(m5mols_mod_init); >> +module_exit(m5mols_mod_exit); >> + >> +MODULE_AUTHOR("HeungJun Kim <riverful.kim@xxxxxxxxxxx>"); >> +MODULE_AUTHOR("Dongsoo Kim <dongsoo45.kim@xxxxxxxxxxx>"); >> +MODULE_DESCRIPTION("Fujitsu M5MOLS 8M Pixel camera sensor with ISP driver"); >> +MODULE_LICENSE("GPL"); >> diff --git a/drivers/media/video/m5mols/m5mols_reg.h b/drivers/media/video/m5mols/m5mols_reg.h >> new file mode 100644 >> index 0000000..036069e >> --- /dev/null >> +++ b/drivers/media/video/m5mols/m5mols_reg.h >> @@ -0,0 +1,103 @@ >> +/* >> + * Register map for M5MOLS 8M Pixel camera sensor with ISP >> + * >> + * Copyright (C) 2011 Samsung Electronics Co., Ltd >> + * Author: HeungJun Kim, riverful.kim@xxxxxxxxxxx >> + * >> + * Copyright (C) 2009 Samsung Electronics Co., Ltd >> + * Author: Dongsoo Nathaniel Kim, dongsoo45.kim@xxxxxxxxxxx >> + * >> + * This program is free software; you can redistribute it and/or modify >> + * it under the terms of the GNU General Public License as published by >> + * the Free Software Foundation; either version 2 of the License, or >> + * (at your option) any later version. >> + */ >> + >> +#ifndef M5MOLS_REG_H >> +#define M5MOLS_REG_H >> + >> +/* >> + * Category section register >> + * >> + * The category means a kind of command set. Including category section, >> + * all defined categories in this version supports only, as you see below: >> + */ >> +#define CAT_SYSTEM 0x00 >> +#define CAT_PARAM 0x01 >> +#define CAT_MON 0x02 >> +#define CAT_AE 0x03 >> +#define CAT_WB 0x06 >> +#define CAT_FLASH 0x0f /* related with FW, Verions, booting */ >> + >> +/* >> + * Category 0 - System >> + * >> + * This category supports FW version, managing mode, even interrupt. >> + */ >> +#define CAT0_CUSTOMER_CODE 0x00 >> +#define CAT0_PJ_CODE 0x01 >> +#define CAT0_VERSION_FW_H 0x02 >> +#define CAT0_VERSION_FW_L 0x03 >> +#define CAT0_VERSION_HW_H 0x04 >> +#define CAT0_VERSION_HW_L 0x05 >> +#define CAT0_VERSION_PARM_H 0x06 >> +#define CAT0_VERSION_PARM_L 0x07 >> +#define CAT0_VERSION_AWB_H 0x08 >> +#define CAT0_VERSION_AWB_L 0x09 >> +#define CAT0_SYSMODE 0x0b >> +#define CAT0_INT_ROOTEN 0x12 >> + >> +/* >> + * category 1 - Parameter mode >> + * >> + * This category is dealing with almost camera vendor. In spite of that, >> + * It's a register to be able to detailed value for whole camera syste. >> + * The key parameter like a resolution, FPS, data interface connecting >> + * with Mobile AP, even effects. >> + */ >> +#define CAT1_DATA_INTERFACE 0x00 >> +#define CAT1_MONITOR_SIZE 0x01 >> +#define CAT1_MONITOR_FPS 0x02 >> +#define CAT1_EFFECT 0x0b >> + >> +/* >> + * Category 2 - Monitor mode >> + * >> + * This category supports only monitoring mode. The monitoring mode means, >> + * similar to preview. It supports like a YUYV format. At the capture mode, >> + * it is handled like a JPEG & RAW formats. >> + */ >> +#define CAT2_CFIXB 0x09 >> +#define CAT2_CFIXR 0x0a >> +#define CAT2_COLOR_EFFECT 0x0b >> +#define CAT2_CHROMA_LVL 0x0f >> +#define CAT2_CHROMA_EN 0x10 >> + >> +/* >> + * Category 3 - Auto Exposure >> + * >> + * Currently, it supports only gain value with monitor mode. This device >> + * is able to support Shutter, Gain(similar with Aperture), Flicker, at >> + * monitor mode & capture mode both. >> + */ >> +#define CAT3_AE_LOCK 0x00 >> +#define CAT3_AE_MODE 0x01 >> +#define CAT3_MANUAL_GAIN_MON_1 0x12 /* upper byte */ >> +#define CAT3_MANUAL_GAIN_MON_2 0x13 /* lower byte */ >> +#define CAT3_MANUAL_SHUT_MON_1 0x14 >> +#define CAT3_MANUAL_SHUT_MON_2 0x15 >> +#define CAT3_MAX_SHUT_MON_1 0x16 >> +#define CAT3_MAX_SHUT_MON_2 0x17 >> +#define CAT3_MAX_GAIN_MON_1 0x1a >> +#define CAT3_MAX_GAIN_MON_2 0x1b >> + >> +/* >> + * Category 6 - White Balance >> + * >> + * Currently, it supports only auto white balance. >> + */ >> +#define CAT6_AWB_LOCK 0x00 >> +#define CAT6_AWB_MODE 0x02 >> +#define CAT6_AWB_MANUAL 0x03 >> + >> +#endif /* M5MOLS_REG_H */ >> diff --git a/include/media/m5mols.h b/include/media/m5mols.h >> new file mode 100644 >> index 0000000..55b0f0f >> --- /dev/null >> +++ b/include/media/m5mols.h >> @@ -0,0 +1,31 @@ >> +/* >> + * Driver for M5MOLS 8M Pixel camera sensor with ISP >> + * >> + * Copyright (C) 2011 Samsung Electronics Co., Ltd >> + * Author: HeungJun Kim, riverful.kim@xxxxxxxxxxx >> + * >> + * Copyright (C) 2009 Samsung Electronics Co., Ltd >> + * Author: Dongsoo Nathaniel Kim, dongsoo45.kim@xxxxxxxxxxx >> + * >> + * This program is free software; you can redistribute it and/or modify >> + * it under the terms of the GNU General Public License as published by >> + * the Free Software Foundation; either version 2 of the License, or >> + * (at your option) any later version. >> + */ >> + >> +#ifndef MEDIA_M5MOLS_H >> +#define MEDIA_M5MOLS_H >> + >> +/** >> +* struct m5mols_platform_data - platform data for M5MOLS driver >> +* @gpio_nrst: GPIO driving the reset pin of M5MOLS >> +* @set_power: an additional callback to a board setup code >> +* to be called after enabling and before disabling >> +* the sensor device supply regulators >> +*/ >> +struct m5mols_platform_data { >> + int (*set_power)(struct device *dev, int on); >> + int gpio_nrst; >> +}; >> + >> +#endif /* MEDIA_M5MOLS_H */ >> > > Regards, > > Hans > > -- > Hans Verkuil - video4linux developer - sponsored by Cisco > -- > To unsubscribe from this list: send the line "unsubscribe linux-media" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
