diff options
Diffstat (limited to 'sound/i2c/other/tea575x-tuner.c')
| -rw-r--r-- | sound/i2c/other/tea575x-tuner.c | 365 |
1 files changed, 0 insertions, 365 deletions
diff --git a/sound/i2c/other/tea575x-tuner.c b/sound/i2c/other/tea575x-tuner.c deleted file mode 100644 index ee538f1ae84..00000000000 --- a/sound/i2c/other/tea575x-tuner.c +++ /dev/null @@ -1,365 +0,0 @@ -/* - * ALSA driver for TEA5757/5759 Philips AM/FM radio tuner chips - * - * Copyright (c) 2004 Jaroslav Kysela <perex@perex.cz> - * - * - * 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. - * - * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - -#include <asm/io.h> -#include <linux/delay.h> -#include <linux/interrupt.h> -#include <linux/init.h> -#include <linux/slab.h> -#include <linux/version.h> -#include <sound/core.h> -#include <sound/tea575x-tuner.h> - -MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>"); -MODULE_DESCRIPTION("Routines for control of TEA5757/5759 Philips AM/FM radio tuner chips"); -MODULE_LICENSE("GPL"); - -static int radio_nr = -1; -module_param(radio_nr, int, 0); - -#define RADIO_VERSION KERNEL_VERSION(0, 0, 2) -#define FREQ_LO (87 * 16000) -#define FREQ_HI (108 * 16000) - -/* - * definitions - */ - -#define TEA575X_BIT_SEARCH (1<<24) /* 1 = search action, 0 = tuned */ -#define TEA575X_BIT_UPDOWN (1<<23) /* 0 = search down, 1 = search up */ -#define TEA575X_BIT_MONO (1<<22) /* 0 = stereo, 1 = mono */ -#define TEA575X_BIT_BAND_MASK (3<<20) -#define TEA575X_BIT_BAND_FM (0<<20) -#define TEA575X_BIT_BAND_MW (1<<20) -#define TEA575X_BIT_BAND_LW (1<<21) -#define TEA575X_BIT_BAND_SW (1<<22) -#define TEA575X_BIT_PORT_0 (1<<19) /* user bit */ -#define TEA575X_BIT_PORT_1 (1<<18) /* user bit */ -#define TEA575X_BIT_SEARCH_MASK (3<<16) /* search level */ -#define TEA575X_BIT_SEARCH_5_28 (0<<16) /* FM >5uV, AM >28uV */ -#define TEA575X_BIT_SEARCH_10_40 (1<<16) /* FM >10uV, AM > 40uV */ -#define TEA575X_BIT_SEARCH_30_63 (2<<16) /* FM >30uV, AM > 63uV */ -#define TEA575X_BIT_SEARCH_150_1000 (3<<16) /* FM > 150uV, AM > 1000uV */ -#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 - */ - -static void snd_tea575x_set_freq(struct snd_tea575x *tea) -{ - unsigned long freq; - - freq = tea->freq / 16; /* to kHz */ - if (freq > 108000) - freq = 108000; - if (freq < 87000) - freq = 87000; - /* crystal fixup */ - if (tea->tea5759) - freq -= tea->freq_fixup; - else - freq += tea->freq_fixup; - /* freq /= 12.5 */ - freq *= 10; - freq /= 125; - - tea->val &= ~TEA575X_BIT_FREQ_MASK; - tea->val |= freq & TEA575X_BIT_FREQ_MASK; - tea->ops->write(tea, tea->val); -} - -/* - * Linux Video interface - */ - -static int vidioc_querycap(struct file *file, void *priv, - struct v4l2_capability *v) -{ - struct snd_tea575x *tea = video_drvdata(file); - - strcpy(v->card, tea->tea5759 ? "TEA5759" : "TEA5757"); - strlcpy(v->driver, "tea575x-tuner", sizeof(v->driver)); - strlcpy(v->card, "Maestro Radio", sizeof(v->card)); - sprintf(v->bus_info, "PCI"); - v->version = RADIO_VERSION; - v->capabilities = V4L2_CAP_TUNER; - return 0; -} - -static int vidioc_g_tuner(struct file *file, void *priv, - struct v4l2_tuner *v) -{ - if (v->index > 0) - return -EINVAL; - - strcpy(v->name, "FM"); - v->type = V4L2_TUNER_RADIO; - v->rangelow = FREQ_LO; - v->rangehigh = FREQ_HI; - v->rxsubchans = V4L2_TUNER_SUB_MONO|V4L2_TUNER_SUB_STEREO; - v->capability = V4L2_TUNER_CAP_LOW; - v->audmode = V4L2_TUNER_MODE_MONO; - v->signal = 0xffff; - return 0; -} - -static int vidioc_s_tuner(struct file *file, void *priv, - struct v4l2_tuner *v) -{ - if (v->index > 0) - return -EINVAL; - return 0; -} - -static int vidioc_g_frequency(struct file *file, void *priv, - struct v4l2_frequency *f) -{ - struct snd_tea575x *tea = video_drvdata(file); - - f->type = V4L2_TUNER_RADIO; - f->frequency = tea->freq; - return 0; -} - -static int vidioc_s_frequency(struct file *file, void *priv, - struct v4l2_frequency *f) -{ - struct snd_tea575x *tea = video_drvdata(file); - - if (f->frequency < FREQ_LO || f->frequency > FREQ_HI) - return -EINVAL; - - tea->freq = f->frequency; - - snd_tea575x_set_freq(tea); - - return 0; -} - -static int vidioc_g_audio(struct file *file, void *priv, - struct v4l2_audio *a) -{ - if (a->index > 1) - return -EINVAL; - - strcpy(a->name, "Radio"); - a->capability = V4L2_AUDCAP_STEREO; - return 0; -} - -static int vidioc_s_audio(struct file *file, void *priv, - struct v4l2_audio *a) -{ - if (a->index != 0) - return -EINVAL; - return 0; -} - -static int vidioc_queryctrl(struct file *file, void *priv, - struct v4l2_queryctrl *qc) -{ - 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); - - switch (ctrl->id) { - case V4L2_CID_AUDIO_MUTE: - if (tea->ops->mute) { - ctrl->value = tea->mute; - 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->ops->mute) { - tea->ops->mute(tea, ctrl->value); - tea->mute = ctrl->value; - return 0; - } - } - return -EINVAL; -} - -static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i) -{ - *i = 0; - return 0; -} - -static int vidioc_s_input(struct file *filp, void *priv, unsigned int i) -{ - if (i != 0) - return -EINVAL; - return 0; -} - -static int snd_tea575x_exclusive_open(struct file *file) -{ - struct snd_tea575x *tea = video_drvdata(file); - - return test_and_set_bit(0, &tea->in_use) ? -EBUSY : 0; -} - -static int snd_tea575x_exclusive_release(struct file *file) -{ - struct snd_tea575x *tea = video_drvdata(file); - - clear_bit(0, &tea->in_use); - return 0; -} - -static const struct v4l2_file_operations tea575x_fops = { - .owner = THIS_MODULE, - .open = snd_tea575x_exclusive_open, - .release = snd_tea575x_exclusive_release, - .ioctl = video_ioctl2, -}; - -static const struct v4l2_ioctl_ops tea575x_ioctl_ops = { - .vidioc_querycap = vidioc_querycap, - .vidioc_g_tuner = vidioc_g_tuner, - .vidioc_s_tuner = vidioc_s_tuner, - .vidioc_g_audio = vidioc_g_audio, - .vidioc_s_audio = vidioc_s_audio, - .vidioc_g_input = vidioc_g_input, - .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, -}; - -/* - * initialize all the tea575x chips - */ -void snd_tea575x_init(struct snd_tea575x *tea) -{ - int retval; - unsigned int val; - struct video_device *tea575x_radio_inst; - - val = tea->ops->read(tea); - if (val == 0x1ffffff || val == 0) { - snd_printk(KERN_ERR - "tea575x-tuner: Cannot find TEA575x chip\n"); - return; - } - - tea->in_use = 0; - tea->val = TEA575X_BIT_BAND_FM | TEA575X_BIT_SEARCH_10_40; - tea->freq = 90500 * 16; /* 90.5Mhz default */ - - tea575x_radio_inst = video_device_alloc(); - if (tea575x_radio_inst == NULL) { - printk(KERN_ERR "tea575x-tuner: not enough memory\n"); - return; - } - - memcpy(tea575x_radio_inst, &tea575x_radio, sizeof(tea575x_radio)); - - strcpy(tea575x_radio.name, tea->tea5759 ? - "TEA5759 radio" : "TEA5757 radio"); - - video_set_drvdata(tea575x_radio_inst, tea); - - retval = video_register_device(tea575x_radio_inst, - VFL_TYPE_RADIO, radio_nr); - if (retval) { - printk(KERN_ERR "tea575x-tuner: can't register video device!\n"); - kfree(tea575x_radio_inst); - return; - } - - snd_tea575x_set_freq(tea); - - /* mute on init */ - if (tea->ops->mute) { - tea->ops->mute(tea, 1); - tea->mute = 1; - } - tea->vd = tea575x_radio_inst; -} - -void snd_tea575x_exit(struct snd_tea575x *tea) -{ - if (tea->vd) { - video_unregister_device(tea->vd); - tea->vd = NULL; - } -} - -static int __init alsa_tea575x_module_init(void) -{ - return 0; -} - -static void __exit alsa_tea575x_module_exit(void) -{ -} - -module_init(alsa_tea575x_module_init) -module_exit(alsa_tea575x_module_exit) - -EXPORT_SYMBOL(snd_tea575x_init); -EXPORT_SYMBOL(snd_tea575x_exit); |