From cf6832afe59f37b154bf0e41bf5e59cfd7f46d24 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sun, 12 Dec 2010 08:45:22 -0300 Subject: [PATCH] [media] tvp514x: use the control framework Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/tvp514x.c | 236 ++++++++++-------------------------------- 1 file changed, 57 insertions(+), 179 deletions(-) diff --git a/drivers/media/video/tvp514x.c b/drivers/media/video/tvp514x.c index 45bcf03..9b3e828 100644 --- a/drivers/media/video/tvp514x.c +++ b/drivers/media/video/tvp514x.c @@ -37,6 +37,7 @@ #include #include #include +#include #include #include "tvp514x_regs.h" @@ -97,6 +98,7 @@ static int tvp514x_s_stream(struct v4l2_subdev *sd, int enable); */ struct tvp514x_decoder { struct v4l2_subdev sd; + struct v4l2_ctrl_handler hdl; struct tvp514x_reg tvp514x_regs[ARRAY_SIZE(tvp514x_reg_list_default)]; const struct tvp514x_platform_data *pdata; @@ -238,6 +240,11 @@ static inline struct tvp514x_decoder *to_decoder(struct v4l2_subdev *sd) return container_of(sd, struct tvp514x_decoder, sd); } +static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl) +{ + return &container_of(ctrl->handler, struct tvp514x_decoder, hdl)->sd; +} + /** * tvp514x_read_reg() - Read a value from a register in an TVP5146/47. @@ -719,213 +726,54 @@ static int tvp514x_s_routing(struct v4l2_subdev *sd, } /** - * tvp514x_queryctrl() - V4L2 decoder interface handler for queryctrl - * @sd: pointer to standard V4L2 sub-device structure - * @qctrl: standard V4L2 v4l2_queryctrl structure - * - * If the requested control is supported, returns the control information. - * Otherwise, returns -EINVAL if the control is not supported. - */ -static int -tvp514x_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qctrl) -{ - int err = -EINVAL; - - if (qctrl == NULL) - return err; - - switch (qctrl->id) { - case V4L2_CID_BRIGHTNESS: - /* Brightness supported is (0-255), */ - err = v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 128); - break; - case V4L2_CID_CONTRAST: - case V4L2_CID_SATURATION: - /** - * Saturation and Contrast supported is - - * Contrast: 0 - 255 (Default - 128) - * Saturation: 0 - 255 (Default - 128) - */ - err = v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 128); - break; - case V4L2_CID_HUE: - /* Hue Supported is - - * Hue - -180 - +180 (Default - 0, Step - +180) - */ - err = v4l2_ctrl_query_fill(qctrl, -180, 180, 180, 0); - break; - case V4L2_CID_AUTOGAIN: - /** - * Auto Gain supported is - - * 0 - 1 (Default - 1) - */ - err = v4l2_ctrl_query_fill(qctrl, 0, 1, 1, 1); - break; - default: - v4l2_err(sd, "invalid control id %d\n", qctrl->id); - return err; - } - - v4l2_dbg(1, debug, sd, "Query Control:%s: Min - %d, Max - %d, Def - %d\n", - qctrl->name, qctrl->minimum, qctrl->maximum, - qctrl->default_value); - - return err; -} - -/** - * tvp514x_g_ctrl() - V4L2 decoder interface handler for g_ctrl - * @sd: pointer to standard V4L2 sub-device structure - * @ctrl: pointer to v4l2_control structure - * - * If the requested control is supported, returns the control's current - * value from the decoder. Otherwise, returns -EINVAL if the control is not - * supported. - */ -static int -tvp514x_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) -{ - struct tvp514x_decoder *decoder = to_decoder(sd); - - if (ctrl == NULL) - return -EINVAL; - - switch (ctrl->id) { - case V4L2_CID_BRIGHTNESS: - ctrl->value = decoder->tvp514x_regs[REG_BRIGHTNESS].val; - break; - case V4L2_CID_CONTRAST: - ctrl->value = decoder->tvp514x_regs[REG_CONTRAST].val; - break; - case V4L2_CID_SATURATION: - ctrl->value = decoder->tvp514x_regs[REG_SATURATION].val; - break; - case V4L2_CID_HUE: - ctrl->value = decoder->tvp514x_regs[REG_HUE].val; - if (ctrl->value == 0x7F) - ctrl->value = 180; - else if (ctrl->value == 0x80) - ctrl->value = -180; - else - ctrl->value = 0; - - break; - case V4L2_CID_AUTOGAIN: - ctrl->value = decoder->tvp514x_regs[REG_AFE_GAIN_CTRL].val; - if ((ctrl->value & 0x3) == 3) - ctrl->value = 1; - else - ctrl->value = 0; - - break; - default: - v4l2_err(sd, "invalid control id %d\n", ctrl->id); - return -EINVAL; - } - - v4l2_dbg(1, debug, sd, "Get Control: ID - %d - %d\n", - ctrl->id, ctrl->value); - return 0; -} - -/** * tvp514x_s_ctrl() - V4L2 decoder interface handler for s_ctrl - * @sd: pointer to standard V4L2 sub-device structure - * @ctrl: pointer to v4l2_control structure + * @ctrl: pointer to v4l2_ctrl structure * * If the requested control is supported, sets the control's current * value in HW. Otherwise, returns -EINVAL if the control is not supported. */ -static int -tvp514x_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) +static int tvp514x_s_ctrl(struct v4l2_ctrl *ctrl) { + struct v4l2_subdev *sd = to_sd(ctrl); struct tvp514x_decoder *decoder = to_decoder(sd); int err = -EINVAL, value; - if (ctrl == NULL) - return err; - - value = ctrl->value; + value = ctrl->val; switch (ctrl->id) { case V4L2_CID_BRIGHTNESS: - if (ctrl->value < 0 || ctrl->value > 255) { - v4l2_err(sd, "invalid brightness setting %d\n", - ctrl->value); - return -ERANGE; - } - err = tvp514x_write_reg(sd, REG_BRIGHTNESS, - value); - if (err) - return err; - - decoder->tvp514x_regs[REG_BRIGHTNESS].val = value; + err = tvp514x_write_reg(sd, REG_BRIGHTNESS, value); + if (!err) + decoder->tvp514x_regs[REG_BRIGHTNESS].val = value; break; case V4L2_CID_CONTRAST: - if (ctrl->value < 0 || ctrl->value > 255) { - v4l2_err(sd, "invalid contrast setting %d\n", - ctrl->value); - return -ERANGE; - } err = tvp514x_write_reg(sd, REG_CONTRAST, value); - if (err) - return err; - - decoder->tvp514x_regs[REG_CONTRAST].val = value; + if (!err) + decoder->tvp514x_regs[REG_CONTRAST].val = value; break; case V4L2_CID_SATURATION: - if (ctrl->value < 0 || ctrl->value > 255) { - v4l2_err(sd, "invalid saturation setting %d\n", - ctrl->value); - return -ERANGE; - } err = tvp514x_write_reg(sd, REG_SATURATION, value); - if (err) - return err; - - decoder->tvp514x_regs[REG_SATURATION].val = value; + if (!err) + decoder->tvp514x_regs[REG_SATURATION].val = value; break; case V4L2_CID_HUE: if (value == 180) value = 0x7F; else if (value == -180) value = 0x80; - else if (value == 0) - value = 0; - else { - v4l2_err(sd, "invalid hue setting %d\n", ctrl->value); - return -ERANGE; - } err = tvp514x_write_reg(sd, REG_HUE, value); - if (err) - return err; - - decoder->tvp514x_regs[REG_HUE].val = value; + if (!err) + decoder->tvp514x_regs[REG_HUE].val = value; break; case V4L2_CID_AUTOGAIN: - if (value == 1) - value = 0x0F; - else if (value == 0) - value = 0x0C; - else { - v4l2_err(sd, "invalid auto gain setting %d\n", - ctrl->value); - return -ERANGE; - } - err = tvp514x_write_reg(sd, REG_AFE_GAIN_CTRL, value); - if (err) - return err; - - decoder->tvp514x_regs[REG_AFE_GAIN_CTRL].val = value; + err = tvp514x_write_reg(sd, REG_AFE_GAIN_CTRL, value ? 0x0f : 0x0c); + if (!err) + decoder->tvp514x_regs[REG_AFE_GAIN_CTRL].val = value; break; - default: - v4l2_err(sd, "invalid control id %d\n", ctrl->id); - return err; } v4l2_dbg(1, debug, sd, "Set Control: ID - %d - %d\n", - ctrl->id, ctrl->value); - + ctrl->id, ctrl->val); return err; } @@ -1104,10 +952,18 @@ static int tvp514x_s_stream(struct v4l2_subdev *sd, int enable) return err; } -static const struct v4l2_subdev_core_ops tvp514x_core_ops = { - .queryctrl = tvp514x_queryctrl, - .g_ctrl = tvp514x_g_ctrl, +static const struct v4l2_ctrl_ops tvp514x_ctrl_ops = { .s_ctrl = tvp514x_s_ctrl, +}; + +static const struct v4l2_subdev_core_ops tvp514x_core_ops = { + .g_ext_ctrls = v4l2_subdev_g_ext_ctrls, + .try_ext_ctrls = v4l2_subdev_try_ext_ctrls, + .s_ext_ctrls = v4l2_subdev_s_ext_ctrls, + .g_ctrl = v4l2_subdev_g_ctrl, + .s_ctrl = v4l2_subdev_s_ctrl, + .queryctrl = v4l2_subdev_queryctrl, + .querymenu = v4l2_subdev_querymenu, .s_std = tvp514x_s_std, }; @@ -1190,6 +1046,27 @@ tvp514x_probe(struct i2c_client *client, const struct i2c_device_id *id) sd = &decoder->sd; v4l2_i2c_subdev_init(sd, client, &tvp514x_ops); + v4l2_ctrl_handler_init(&decoder->hdl, 5); + v4l2_ctrl_new_std(&decoder->hdl, &tvp514x_ctrl_ops, + V4L2_CID_BRIGHTNESS, 0, 255, 1, 128); + v4l2_ctrl_new_std(&decoder->hdl, &tvp514x_ctrl_ops, + V4L2_CID_CONTRAST, 0, 255, 1, 128); + v4l2_ctrl_new_std(&decoder->hdl, &tvp514x_ctrl_ops, + V4L2_CID_SATURATION, 0, 255, 1, 128); + v4l2_ctrl_new_std(&decoder->hdl, &tvp514x_ctrl_ops, + V4L2_CID_HUE, -180, 180, 180, 0); + v4l2_ctrl_new_std(&decoder->hdl, &tvp514x_ctrl_ops, + V4L2_CID_AUTOGAIN, 0, 1, 1, 1); + sd->ctrl_handler = &decoder->hdl; + if (decoder->hdl.error) { + int err = decoder->hdl.error; + + v4l2_ctrl_handler_free(&decoder->hdl); + kfree(decoder); + return err; + } + v4l2_ctrl_handler_setup(&decoder->hdl); + v4l2_info(sd, "%s decoder driver registered !!\n", sd->name); return 0; @@ -1209,6 +1086,7 @@ static int tvp514x_remove(struct i2c_client *client) struct tvp514x_decoder *decoder = to_decoder(sd); v4l2_device_unregister_subdev(sd); + v4l2_ctrl_handler_free(&decoder->hdl); kfree(decoder); return 0; } -- 2.7.4