From 2b80a19181af3bb15ef1c022f4a56deabcc5bd5e Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Fri, 13 Feb 2009 19:38:10 -0300 Subject: [PATCH] V4L/DVB (10862): indycam: convert to v4l2_subdev Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/indycam.c | 128 ++++++++++++++++++-------------- include/media/v4l2-chip-ident.h | 3 + 2 files changed, 74 insertions(+), 57 deletions(-) diff --git a/drivers/media/video/indycam.c b/drivers/media/video/indycam.c index 54099e303c8d..eb5078c07a33 100644 --- a/drivers/media/video/indycam.c +++ b/drivers/media/video/indycam.c @@ -22,7 +22,8 @@ /* IndyCam decodes stream of photons into digital image representation ;-) */ #include #include -#include +#include +#include #include #include "indycam.h" @@ -49,10 +50,15 @@ I2C_CLIENT_INSMOD; #endif struct indycam { - struct i2c_client *client; + struct v4l2_subdev sd; u8 version; }; +static inline struct indycam *to_indycam(struct v4l2_subdev *sd) +{ + return container_of(sd, struct indycam, sd); +} + static const u8 initseq[] = { INDYCAM_CONTROL_AGCENA, /* INDYCAM_CONTROL */ INDYCAM_SHUTTER_60, /* INDYCAM_SHUTTER */ @@ -66,8 +72,9 @@ static const u8 initseq[] = { /* IndyCam register handling */ -static int indycam_read_reg(struct i2c_client *client, u8 reg, u8 *value) +static int indycam_read_reg(struct v4l2_subdev *sd, u8 reg, u8 *value) { + struct i2c_client *client = v4l2_get_subdevdata(sd); int ret; if (reg == INDYCAM_REG_RESET) { @@ -90,12 +97,12 @@ static int indycam_read_reg(struct i2c_client *client, u8 reg, u8 *value) return 0; } -static int indycam_write_reg(struct i2c_client *client, u8 reg, u8 value) +static int indycam_write_reg(struct v4l2_subdev *sd, u8 reg, u8 value) { + struct i2c_client *client = v4l2_get_subdevdata(sd); int err; - if ((reg == INDYCAM_REG_BRIGHTNESS) - || (reg == INDYCAM_REG_VERSION)) { + if (reg == INDYCAM_REG_BRIGHTNESS || reg == INDYCAM_REG_VERSION) { dprintk("indycam_write_reg(): " "skipping read-only register %d\n", reg); return 0; @@ -111,13 +118,13 @@ static int indycam_write_reg(struct i2c_client *client, u8 reg, u8 value) return err; } -static int indycam_write_block(struct i2c_client *client, u8 reg, +static int indycam_write_block(struct v4l2_subdev *sd, u8 reg, u8 length, u8 *data) { int i, err; for (i = 0; i < length; i++) { - err = indycam_write_reg(client, reg + i, data[i]); + err = indycam_write_reg(sd, reg + i, data[i]); if (err) return err; } @@ -128,29 +135,28 @@ static int indycam_write_block(struct i2c_client *client, u8 reg, /* Helper functions */ #ifdef INDYCAM_DEBUG -static void indycam_regdump_debug(struct i2c_client *client) +static void indycam_regdump_debug(struct v4l2_subdev *sd) { int i; u8 val; for (i = 0; i < 9; i++) { - indycam_read_reg(client, i, &val); + indycam_read_reg(sd, i, &val); dprintk("Reg %d = 0x%02x\n", i, val); } } #endif -static int indycam_get_control(struct i2c_client *client, - struct v4l2_control *ctrl) +static int indycam_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) { - struct indycam *camera = i2c_get_clientdata(client); + struct indycam *camera = to_indycam(sd); u8 reg; int ret = 0; switch (ctrl->id) { case V4L2_CID_AUTOGAIN: case V4L2_CID_AUTO_WHITE_BALANCE: - ret = indycam_read_reg(client, INDYCAM_REG_CONTROL, ®); + ret = indycam_read_reg(sd, INDYCAM_REG_CONTROL, ®); if (ret) return -EIO; if (ctrl->id == V4L2_CID_AUTOGAIN) @@ -161,38 +167,38 @@ static int indycam_get_control(struct i2c_client *client, ? 1 : 0; break; case V4L2_CID_EXPOSURE: - ret = indycam_read_reg(client, INDYCAM_REG_SHUTTER, ®); + ret = indycam_read_reg(sd, INDYCAM_REG_SHUTTER, ®); if (ret) return -EIO; ctrl->value = ((s32)reg == 0x00) ? 0xff : ((s32)reg - 1); break; case V4L2_CID_GAIN: - ret = indycam_read_reg(client, INDYCAM_REG_GAIN, ®); + ret = indycam_read_reg(sd, INDYCAM_REG_GAIN, ®); if (ret) return -EIO; ctrl->value = (s32)reg; break; case V4L2_CID_RED_BALANCE: - ret = indycam_read_reg(client, INDYCAM_REG_RED_BALANCE, ®); + ret = indycam_read_reg(sd, INDYCAM_REG_RED_BALANCE, ®); if (ret) return -EIO; ctrl->value = (s32)reg; break; case V4L2_CID_BLUE_BALANCE: - ret = indycam_read_reg(client, INDYCAM_REG_BLUE_BALANCE, ®); + ret = indycam_read_reg(sd, INDYCAM_REG_BLUE_BALANCE, ®); if (ret) return -EIO; ctrl->value = (s32)reg; break; case INDYCAM_CONTROL_RED_SATURATION: - ret = indycam_read_reg(client, + ret = indycam_read_reg(sd, INDYCAM_REG_RED_SATURATION, ®); if (ret) return -EIO; ctrl->value = (s32)reg; break; case INDYCAM_CONTROL_BLUE_SATURATION: - ret = indycam_read_reg(client, + ret = indycam_read_reg(sd, INDYCAM_REG_BLUE_SATURATION, ®); if (ret) return -EIO; @@ -200,7 +206,7 @@ static int indycam_get_control(struct i2c_client *client, break; case V4L2_CID_GAMMA: if (camera->version == CAMERA_VERSION_MOOSE) { - ret = indycam_read_reg(client, + ret = indycam_read_reg(sd, INDYCAM_REG_GAMMA, ®); if (ret) return -EIO; @@ -216,17 +222,16 @@ static int indycam_get_control(struct i2c_client *client, return ret; } -static int indycam_set_control(struct i2c_client *client, - struct v4l2_control *ctrl) +static int indycam_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) { - struct indycam *camera = i2c_get_clientdata(client); + struct indycam *camera = to_indycam(sd); u8 reg; int ret = 0; switch (ctrl->id) { case V4L2_CID_AUTOGAIN: case V4L2_CID_AUTO_WHITE_BALANCE: - ret = indycam_read_reg(client, INDYCAM_REG_CONTROL, ®); + ret = indycam_read_reg(sd, INDYCAM_REG_CONTROL, ®); if (ret) break; @@ -242,34 +247,34 @@ static int indycam_set_control(struct i2c_client *client, reg &= ~INDYCAM_CONTROL_AWBCTL; } - ret = indycam_write_reg(client, INDYCAM_REG_CONTROL, reg); + ret = indycam_write_reg(sd, INDYCAM_REG_CONTROL, reg); break; case V4L2_CID_EXPOSURE: reg = (ctrl->value == 0xff) ? 0x00 : (ctrl->value + 1); - ret = indycam_write_reg(client, INDYCAM_REG_SHUTTER, reg); + ret = indycam_write_reg(sd, INDYCAM_REG_SHUTTER, reg); break; case V4L2_CID_GAIN: - ret = indycam_write_reg(client, INDYCAM_REG_GAIN, ctrl->value); + ret = indycam_write_reg(sd, INDYCAM_REG_GAIN, ctrl->value); break; case V4L2_CID_RED_BALANCE: - ret = indycam_write_reg(client, INDYCAM_REG_RED_BALANCE, + ret = indycam_write_reg(sd, INDYCAM_REG_RED_BALANCE, ctrl->value); break; case V4L2_CID_BLUE_BALANCE: - ret = indycam_write_reg(client, INDYCAM_REG_BLUE_BALANCE, + ret = indycam_write_reg(sd, INDYCAM_REG_BLUE_BALANCE, ctrl->value); break; case INDYCAM_CONTROL_RED_SATURATION: - ret = indycam_write_reg(client, INDYCAM_REG_RED_SATURATION, + ret = indycam_write_reg(sd, INDYCAM_REG_RED_SATURATION, ctrl->value); break; case INDYCAM_CONTROL_BLUE_SATURATION: - ret = indycam_write_reg(client, INDYCAM_REG_BLUE_SATURATION, + ret = indycam_write_reg(sd, INDYCAM_REG_BLUE_SATURATION, ctrl->value); break; case V4L2_CID_GAMMA: if (camera->version == CAMERA_VERSION_MOOSE) { - ret = indycam_write_reg(client, INDYCAM_REG_GAMMA, + ret = indycam_write_reg(sd, INDYCAM_REG_GAMMA, ctrl->value); } break; @@ -282,30 +287,39 @@ static int indycam_set_control(struct i2c_client *client, /* I2C-interface */ -static int indycam_command(struct i2c_client *client, unsigned int cmd, - void *arg) +static int indycam_g_chip_ident(struct v4l2_subdev *sd, + struct v4l2_dbg_chip_ident *chip) { - /* The old video_decoder interface just isn't enough, - * so we'll use some custom commands. */ - switch (cmd) { - case VIDIOC_G_CTRL: - return indycam_get_control(client, arg); - - case VIDIOC_S_CTRL: - return indycam_set_control(client, arg); + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct indycam *camera = to_indycam(sd); - default: - return -EINVAL; - } + return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_INDYCAM, + camera->version); +} - return 0; +static int indycam_command(struct i2c_client *client, unsigned cmd, void *arg) +{ + return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg); } +/* ----------------------------------------------------------------------- */ + +static const struct v4l2_subdev_core_ops indycam_core_ops = { + .g_chip_ident = indycam_g_chip_ident, + .g_ctrl = indycam_g_ctrl, + .s_ctrl = indycam_s_ctrl, +}; + +static const struct v4l2_subdev_ops indycam_ops = { + .core = &indycam_core_ops, +}; + static int indycam_probe(struct i2c_client *client, const struct i2c_device_id *id) { int err = 0; struct indycam *camera; + struct v4l2_subdev *sd; v4l_info(client, "chip found @ 0x%x (%s)\n", client->addr << 1, client->adapter->name); @@ -314,9 +328,8 @@ static int indycam_probe(struct i2c_client *client, if (!camera) return -ENOMEM; - i2c_set_clientdata(client, camera); - - camera->client = client; + sd = &camera->sd; + v4l2_i2c_subdev_init(sd, client, &indycam_ops); camera->version = i2c_smbus_read_byte_data(client, INDYCAM_REG_VERSION); @@ -330,20 +343,20 @@ static int indycam_probe(struct i2c_client *client, INDYCAM_VERSION_MAJOR(camera->version), INDYCAM_VERSION_MINOR(camera->version)); - indycam_regdump(client); + indycam_regdump(sd); // initialize - err = indycam_write_block(client, 0, sizeof(initseq), (u8 *)&initseq); + err = indycam_write_block(sd, 0, sizeof(initseq), (u8 *)&initseq); if (err) { printk(KERN_ERR "IndyCam initialization failed\n"); kfree(camera); return -EIO; } - indycam_regdump(client); + indycam_regdump(sd); // white balance - err = indycam_write_reg(client, INDYCAM_REG_CONTROL, + err = indycam_write_reg(sd, INDYCAM_REG_CONTROL, INDYCAM_CONTROL_AGCENA | INDYCAM_CONTROL_AWBCTL); if (err) { printk(KERN_ERR "IndyCam: White balancing camera failed\n"); @@ -351,7 +364,7 @@ static int indycam_probe(struct i2c_client *client, return -EIO; } - indycam_regdump(client); + indycam_regdump(sd); printk(KERN_INFO "IndyCam initialized\n"); @@ -360,9 +373,10 @@ static int indycam_probe(struct i2c_client *client, static int indycam_remove(struct i2c_client *client) { - struct indycam *camera = i2c_get_clientdata(client); + struct v4l2_subdev *sd = i2c_get_clientdata(client); - kfree(camera); + v4l2_device_unregister_subdev(sd); + kfree(to_indycam(sd)); return 0; } diff --git a/include/media/v4l2-chip-ident.h b/include/media/v4l2-chip-ident.h index 70117e748f20..f02517bdf534 100644 --- a/include/media/v4l2-chip-ident.h +++ b/include/media/v4l2-chip-ident.h @@ -70,6 +70,9 @@ enum { V4L2_IDENT_CX23416 = 416, V4L2_IDENT_CX23418 = 418, + /* module indycam: just ident 2000 */ + V4L2_IDENT_INDYCAM = 2000, + /* module bt819: reserved range 810-819 */ V4L2_IDENT_BT815A = 815, V4L2_IDENT_BT817A = 817, -- 2.30.2