From 4522e825dbfc19537a08f65719dc3d69c46fe661 Mon Sep 17 00:00:00 2001 From: Ondrej Zary Date: Mon, 23 May 2011 09:17:19 -0300 Subject: [PATCH] [media] tea575x: convert to control framework Convert tea575x-tuner to use the new V4L2 control framework. Also add ext_init() callback that can be used by a card driver for additional initialization right before registering the video device (for SF16-FMR2). Also embed struct video_device to struct snd_tea575x to simplify the code. Signed-off-by: Ondrej Zary Acked-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/sound/tea575x-tuner.h | 6 +- sound/i2c/other/tea575x-tuner.c | 106 +++++++++++--------------------- 2 files changed, 39 insertions(+), 73 deletions(-) diff --git a/include/sound/tea575x-tuner.h b/include/sound/tea575x-tuner.h index d2ea112fc20f..5aa8186e7820 100644 --- a/include/sound/tea575x-tuner.h +++ b/include/sound/tea575x-tuner.h @@ -23,8 +23,8 @@ */ #include +#include #include -#include #define TEA575X_FMIF 10700 @@ -42,7 +42,7 @@ struct snd_tea575x_ops { }; struct snd_tea575x { - struct video_device *vd; /* video device */ + struct video_device vd; /* video device */ bool tea5759; /* 5759 chip is present */ bool mute; /* Device is muted? */ bool stereo; /* receiving stereo */ @@ -54,6 +54,8 @@ struct snd_tea575x { void *private_data; u8 card[32]; u8 bus_info[32]; + struct v4l2_ctrl_handler ctrl_handler; + int (*ext_init)(struct snd_tea575x *tea); }; int snd_tea575x_init(struct snd_tea575x *tea); diff --git a/sound/i2c/other/tea575x-tuner.c b/sound/i2c/other/tea575x-tuner.c index 4831800239d3..0d7a659c494c 100644 --- a/sound/i2c/other/tea575x-tuner.c +++ b/sound/i2c/other/tea575x-tuner.c @@ -22,11 +22,11 @@ #include #include -#include #include #include #include -#include +#include +#include #include MODULE_AUTHOR("Jaroslav Kysela "); @@ -62,17 +62,6 @@ module_param(radio_nr, int, 0); #define TEA575X_BIT_DUMMY (1<<15) /* buffer */ #define TEA575X_BIT_FREQ_MASK 0x7fff -static struct v4l2_queryctrl radio_qctrl[] = { - { - .id = V4L2_CID_AUDIO_MUTE, - .name = "Mute", - .minimum = 0, - .maximum = 1, - .default_value = 1, - .type = V4L2_CTRL_TYPE_BOOLEAN, - } -}; - /* * lowlevel part */ @@ -266,47 +255,17 @@ static int vidioc_s_audio(struct file *file, void *priv, return 0; } -static int vidioc_queryctrl(struct file *file, void *priv, - struct v4l2_queryctrl *qc) +static int tea575x_s_ctrl(struct v4l2_ctrl *ctrl) { - int i; - - for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) { - if (qc->id && qc->id == radio_qctrl[i].id) { - memcpy(qc, &(radio_qctrl[i]), - sizeof(*qc)); - return 0; - } - } - return -EINVAL; -} - -static int vidioc_g_ctrl(struct file *file, void *priv, - struct v4l2_control *ctrl) -{ - struct snd_tea575x *tea = video_drvdata(file); + struct snd_tea575x *tea = container_of(ctrl->handler, struct snd_tea575x, ctrl_handler); switch (ctrl->id) { case V4L2_CID_AUDIO_MUTE: - ctrl->value = tea->mute; + tea->mute = ctrl->val; + snd_tea575x_set_freq(tea); return 0; } - return -EINVAL; -} -static int vidioc_s_ctrl(struct file *file, void *priv, - struct v4l2_control *ctrl) -{ - struct snd_tea575x *tea = video_drvdata(file); - - switch (ctrl->id) { - case V4L2_CID_AUDIO_MUTE: - if (tea->mute != ctrl->value) { - tea->mute = ctrl->value; - snd_tea575x_set_freq(tea); - } - return 0; - } return -EINVAL; } @@ -355,16 +314,17 @@ static const struct v4l2_ioctl_ops tea575x_ioctl_ops = { .vidioc_s_input = vidioc_s_input, .vidioc_g_frequency = vidioc_g_frequency, .vidioc_s_frequency = vidioc_s_frequency, - .vidioc_queryctrl = vidioc_queryctrl, - .vidioc_g_ctrl = vidioc_g_ctrl, - .vidioc_s_ctrl = vidioc_s_ctrl, }; static struct video_device tea575x_radio = { .name = "tea575x-tuner", .fops = &tea575x_fops, .ioctl_ops = &tea575x_ioctl_ops, - .release = video_device_release, + .release = video_device_release_empty, +}; + +static const struct v4l2_ctrl_ops tea575x_ctrl_ops = { + .s_ctrl = tea575x_s_ctrl, }; /* @@ -373,7 +333,6 @@ static struct video_device tea575x_radio = { int snd_tea575x_init(struct snd_tea575x *tea) { int retval; - struct video_device *tea575x_radio_inst; tea->mute = 1; @@ -384,40 +343,45 @@ int snd_tea575x_init(struct snd_tea575x *tea) tea->in_use = 0; tea->val = TEA575X_BIT_BAND_FM | TEA575X_BIT_SEARCH_10_40; tea->freq = 90500 * 16; /* 90.5Mhz default */ + snd_tea575x_set_freq(tea); - tea575x_radio_inst = video_device_alloc(); - if (tea575x_radio_inst == NULL) { - printk(KERN_ERR "tea575x-tuner: not enough memory\n"); - return -ENOMEM; - } + tea->vd = tea575x_radio; + video_set_drvdata(&tea->vd, tea); - memcpy(tea575x_radio_inst, &tea575x_radio, sizeof(tea575x_radio)); + v4l2_ctrl_handler_init(&tea->ctrl_handler, 1); + tea->vd.ctrl_handler = &tea->ctrl_handler; + v4l2_ctrl_new_std(&tea->ctrl_handler, &tea575x_ctrl_ops, V4L2_CID_AUDIO_MUTE, 0, 1, 1, 1); + retval = tea->ctrl_handler.error; + if (retval) { + printk(KERN_ERR "tea575x-tuner: can't initialize controls\n"); + v4l2_ctrl_handler_free(&tea->ctrl_handler); + return retval; + } - strcpy(tea575x_radio.name, tea->tea5759 ? - "TEA5759 radio" : "TEA5757 radio"); + if (tea->ext_init) { + retval = tea->ext_init(tea); + if (retval) { + v4l2_ctrl_handler_free(&tea->ctrl_handler); + return retval; + } + } - video_set_drvdata(tea575x_radio_inst, tea); + v4l2_ctrl_handler_setup(&tea->ctrl_handler); - retval = video_register_device(tea575x_radio_inst, - VFL_TYPE_RADIO, radio_nr); + retval = video_register_device(&tea->vd, VFL_TYPE_RADIO, radio_nr); if (retval) { printk(KERN_ERR "tea575x-tuner: can't register video device!\n"); - kfree(tea575x_radio_inst); + v4l2_ctrl_handler_free(&tea->ctrl_handler); return retval; } - snd_tea575x_set_freq(tea); - tea->vd = tea575x_radio_inst; - return 0; } void snd_tea575x_exit(struct snd_tea575x *tea) { - if (tea->vd) { - video_unregister_device(tea->vd); - tea->vd = NULL; - } + video_unregister_device(&tea->vd); + v4l2_ctrl_handler_free(&tea->ctrl_handler); } static int __init alsa_tea575x_module_init(void) -- 2.20.1