[alsa-devel] [RFC PATCH 2/2] tea575x: Move from sound to media
Move tea575x from sound/i2c/other to drivers/media/radio Signed-off-by: Ondrej Zary <linux@rainbow-software.org> --- drivers/media/radio/Kconfig | 5 + drivers/media/radio/Makefile | 1 + drivers/media/radio/tea575x.c | 577 +++++++++++++++++++++++++++++++++++++++ sound/i2c/other/Makefile | 2 - sound/i2c/other/tea575x-tuner.c | 577 --------------------------------------- sound/pci/Kconfig | 5 - 6 files changed, 583 insertions(+), 584 deletions(-) create mode 100644 drivers/media/radio/tea575x.c delete mode 100644 sound/i2c/other/tea575x-tuner.c diff --git a/drivers/media/radio/Kconfig b/drivers/media/radio/Kconfig index c0beee2..0f6341d 100644 --- a/drivers/media/radio/Kconfig +++ b/drivers/media/radio/Kconfig @@ -12,6 +12,11 @@ menuconfig RADIO_ADAPTERS if RADIO_ADAPTERS && VIDEO_V4L2 +config RADIO_TEA575X + tristate + depends on SND_FM801_TEA575X_BOOL || SND_ES1968_RADIO || RADIO_SF16FMR2 || RADIO_MAXIRADIO || RADIO_SHARK + default SND_FM801 || SND_ES1968 || RADIO_SF16FMR2 || RADIO_MAXIRADIO || RADIO_SHARK + config RADIO_SI470X bool "Silicon Labs Si470x FM Radio Receiver support" depends on VIDEO_V4L2 diff --git a/drivers/media/radio/Makefile b/drivers/media/radio/Makefile index 0dcdb32..3b64560 100644 --- a/drivers/media/radio/Makefile +++ b/drivers/media/radio/Makefile @@ -32,6 +32,7 @@ obj-$(CONFIG_RADIO_TEF6862) += tef6862.o obj-$(CONFIG_RADIO_TIMBERDALE) += radio-timb.o obj-$(CONFIG_RADIO_WL1273) += radio-wl1273.o obj-$(CONFIG_RADIO_WL128X) += wl128x/ +obj-$(CONFIG_RADIO_TEA575X) += tea575x.o shark2-objs := radio-shark2.o radio-tea5777.o diff --git a/drivers/media/radio/tea575x.c b/drivers/media/radio/tea575x.c new file mode 100644 index 0000000..a1cb208 --- /dev/null +++ b/drivers/media/radio/tea575x.c @@ -0,0 +1,577 @@ +/* + * 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/module.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/sched.h> +#include <media/v4l2-device.h> +#include <media/v4l2-dev.h> +#include <media/v4l2-fh.h> +#include <media/v4l2-ioctl.h> +#include <media/v4l2-event.h> +#include <media/tea575x.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"); + +/* + * 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 (2<<20) +#define TEA575X_BIT_BAND_SW (3<<20) +#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 + +enum { BAND_FM, BAND_FM_JAPAN, BAND_AM }; + +static const struct v4l2_frequency_band bands[] = { + { + .type = V4L2_TUNER_RADIO, + .index = 0, + .capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO | + V4L2_TUNER_CAP_FREQ_BANDS, + .rangelow = 87500 * 16, + .rangehigh = 108000 * 16, + .modulation = V4L2_BAND_MODULATION_FM, + }, + { + .type = V4L2_TUNER_RADIO, + .index = 0, + .capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO | + V4L2_TUNER_CAP_FREQ_BANDS, + .rangelow = 76000 * 16, + .rangehigh = 91000 * 16, + .modulation = V4L2_BAND_MODULATION_FM, + }, + { + .type = V4L2_TUNER_RADIO, + .index = 1, + .capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_FREQ_BANDS, + .rangelow = 530 * 16, + .rangehigh = 1710 * 16, + .modulation = V4L2_BAND_MODULATION_AM, + }, +}; + +/* + * lowlevel part + */ + +static void snd_tea575x_write(struct snd_tea575x *tea, unsigned int val) +{ + u16 l; + u8 data; + + if (tea->ops->write_val) + return tea->ops->write_val(tea, val); + + tea->ops->set_direction(tea, 1); + udelay(16); + + for (l = 25; l > 0; l--) { + data = (val >> 24) & TEA575X_DATA; + val <<= 1; /* shift data */ + tea->ops->set_pins(tea, data | TEA575X_WREN); + udelay(2); + tea->ops->set_pins(tea, data | TEA575X_WREN | TEA575X_CLK); + udelay(2); + tea->ops->set_pins(tea, data | TEA575X_WREN); + udelay(2); + } + + if (!tea->mute) + tea->ops->set_pins(tea, 0); +} + +static u32 snd_tea575x_read(struct snd_tea575x *tea) +{ + u16 l, rdata; + u32 data = 0; + + if (tea->ops->read_val) + return tea->ops->read_val(tea); + + tea->ops->set_direction(tea, 0); + tea->ops->set_pins(tea, 0); + udelay(16); + + for (l = 24; l--;) { + tea->ops->set_pins(tea, TEA575X_CLK); + udelay(2); + if (!l) + tea->tuned = tea->ops->get_pins(tea) & TEA575X_MOST ? 0 : 1; + tea->ops->set_pins(tea, 0); + udelay(2); + data <<= 1; /* shift data */ + rdata = tea->ops->get_pins(tea); + if (!l) + tea->stereo = (rdata & TEA575X_MOST) ? 0 : 1; + if (rdata & TEA575X_DATA) + data++; + udelay(2); + } + + if (tea->mute) + tea->ops->set_pins(tea, TEA575X_WREN); + + return data; +} + +static u32 snd_tea575x_val_to_freq(struct snd_tea575x *tea, u32 val) +{ + u32 freq = val & TEA575X_BIT_FREQ_MASK; + + if (freq == 0) + return freq; + + switch (tea->band) { + case BAND_FM: + /* freq *= 12.5 */ + freq *= 125; + freq /= 10; + /* crystal fixup */ + freq -= TEA575X_FMIF; + break; + case BAND_FM_JAPAN: + /* freq *= 12.5 */ + freq *= 125; + freq /= 10; + /* crystal fixup */ + freq += TEA575X_FMIF; + break; + case BAND_AM: + /* crystal fixup */ + freq -= TEA575X_AMIF; + break; + } + + return clamp(freq * 16, bands[tea->band].rangelow, + bands[tea->band].rangehigh); /* from kHz */ +} + +static u32 snd_tea575x_get_freq(struct snd_tea575x *tea) +{ + return snd_tea575x_val_to_freq(tea, snd_tea575x_read(tea)); +} + +void snd_tea575x_set_freq(struct snd_tea575x *tea) +{ + u32 freq = tea->freq / 16; /* to kHz */ + u32 band = 0; + + switch (tea->band) { + case BAND_FM: + band = TEA575X_BIT_BAND_FM; + /* crystal fixup */ + freq += TEA575X_FMIF; + /* freq /= 12.5 */ + freq *= 10; + freq /= 125; + break; + case BAND_FM_JAPAN: + band = TEA575X_BIT_BAND_FM; + /* crystal fixup */ + freq -= TEA575X_FMIF; + /* freq /= 12.5 */ + freq *= 10; + freq /= 125; + break; + case BAND_AM: + band = TEA575X_BIT_BAND_MW; + /* crystal fixup */ + freq += TEA575X_AMIF; + break; + } + + tea->val &= ~(TEA575X_BIT_FREQ_MASK | TEA575X_BIT_BAND_MASK); + tea->val |= band; + tea->val |= freq & TEA575X_BIT_FREQ_MASK; + snd_tea575x_write(tea, tea->val); + tea->freq = snd_tea575x_val_to_freq(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); + + strlcpy(v->driver, tea->v4l2_dev->name, sizeof(v->driver)); + strlcpy(v->card, tea->card, sizeof(v->card)); + strlcat(v->card, tea->tea5759 ? " TEA5759" : " TEA5757", sizeof(v->card)); + strlcpy(v->bus_info, tea->bus_info, sizeof(v->bus_info)); + v->device_caps = V4L2_CAP_TUNER | V4L2_CAP_RADIO; + if (!tea->cannot_read_data) + v->device_caps |= V4L2_CAP_HW_FREQ_SEEK; + v->capabilities = v->device_caps | V4L2_CAP_DEVICE_CAPS; + return 0; +} + +static int vidioc_enum_freq_bands(struct file *file, void *priv, + struct v4l2_frequency_band *band) +{ + struct snd_tea575x *tea = video_drvdata(file); + int index; + + if (band->tuner != 0) + return -EINVAL; + + switch (band->index) { + case 0: + if (tea->tea5759) + index = BAND_FM_JAPAN; + else + index = BAND_FM; + break; + case 1: + if (tea->has_am) { + index = BAND_AM; + break; + } + /* Fall through */ + default: + return -EINVAL; + } + + *band = bands[index]; + if (!tea->cannot_read_data) + band->capability |= V4L2_TUNER_CAP_HWSEEK_BOUNDED; + + return 0; +} + +static int vidioc_g_tuner(struct file *file, void *priv, + struct v4l2_tuner *v) +{ + struct snd_tea575x *tea = video_drvdata(file); + struct v4l2_frequency_band band_fm = { 0, }; + + if (v->index > 0) + return -EINVAL; + + snd_tea575x_read(tea); + vidioc_enum_freq_bands(file, priv, &band_fm); + + memset(v, 0, sizeof(*v)); + strlcpy(v->name, tea->has_am ? "FM/AM" : "FM", sizeof(v->name)); + v->type = V4L2_TUNER_RADIO; + v->capability = band_fm.capability; + v->rangelow = tea->has_am ? bands[BAND_AM].rangelow : band_fm.rangelow; + v->rangehigh = band_fm.rangehigh; + v->rxsubchans = tea->stereo ? V4L2_TUNER_SUB_STEREO : V4L2_TUNER_SUB_MONO; + v->audmode = (tea->val & TEA575X_BIT_MONO) ? + V4L2_TUNER_MODE_MONO : V4L2_TUNER_MODE_STEREO; + v->signal = tea->tuned ? 0xffff : 0; + return 0; +} + +static int vidioc_s_tuner(struct file *file, void *priv, + const struct v4l2_tuner *v) +{ + struct snd_tea575x *tea = video_drvdata(file); + u32 orig_val = tea->val; + + if (v->index) + return -EINVAL; + tea->val &= ~TEA575X_BIT_MONO; + if (v->audmode == V4L2_TUNER_MODE_MONO) + tea->val |= TEA575X_BIT_MONO; + /* Only apply changes if currently tuning FM */ + if (tea->band != BAND_AM && tea->val != orig_val) + snd_tea575x_set_freq(tea); + + return 0; +} + +static int vidioc_g_frequency(struct file *file, void *priv, + struct v4l2_frequency *f) +{ + struct snd_tea575x *tea = video_drvdata(file); + + if (f->tuner != 0) + return -EINVAL; + f->type = V4L2_TUNER_RADIO; + f->frequency = tea->freq; + return 0; +} + +static int vidioc_s_frequency(struct file *file, void *priv, + const struct v4l2_frequency *f) +{ + struct snd_tea575x *tea = video_drvdata(file); + + if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO) + return -EINVAL; + + if (tea->has_am && f->frequency < (20000 * 16)) + tea->band = BAND_AM; + else if (tea->tea5759) + tea->band = BAND_FM_JAPAN; + else + tea->band = BAND_FM; + + tea->freq = clamp_t(u32, f->frequency, bands[tea->band].rangelow, + bands[tea->band].rangehigh); + snd_tea575x_set_freq(tea); + return 0; +} + +static int vidioc_s_hw_freq_seek(struct file *file, void *fh, + const struct v4l2_hw_freq_seek *a) +{ + struct snd_tea575x *tea = video_drvdata(file); + unsigned long timeout; + int i, spacing; + + if (tea->cannot_read_data) + return -ENOTTY; + if (a->tuner || a->wrap_around) + return -EINVAL; + + if (file->f_flags & O_NONBLOCK) + return -EWOULDBLOCK; + + if (a->rangelow || a->rangehigh) { + for (i = 0; i < ARRAY_SIZE(bands); i++) { + if ((i == BAND_FM && tea->tea5759) || + (i == BAND_FM_JAPAN && !tea->tea5759) || + (i == BAND_AM && !tea->has_am)) + continue; + if (bands[i].rangelow == a->rangelow && + bands[i].rangehigh == a->rangehigh) + break; + } + if (i == ARRAY_SIZE(bands)) + return -EINVAL; /* No matching band found */ + if (i != tea->band) { + tea->band = i; + tea->freq = clamp(tea->freq, bands[i].rangelow, + bands[i].rangehigh); + snd_tea575x_set_freq(tea); + } + } + + spacing = (tea->band == BAND_AM) ? 5 : 50; /* kHz */ + + /* clear the frequency, HW will fill it in */ + tea->val &= ~TEA575X_BIT_FREQ_MASK; + tea->val |= TEA575X_BIT_SEARCH; + if (a->seek_upward) + tea->val |= TEA575X_BIT_UPDOWN; + else + tea->val &= ~TEA575X_BIT_UPDOWN; + snd_tea575x_write(tea, tea->val); + timeout = jiffies + msecs_to_jiffies(10000); + for (;;) { + if (time_after(jiffies, timeout)) + break; + if (schedule_timeout_interruptible(msecs_to_jiffies(10))) { + /* some signal arrived, stop search */ + tea->val &= ~TEA575X_BIT_SEARCH; + snd_tea575x_set_freq(tea); + return -ERESTARTSYS; + } + if (!(snd_tea575x_read(tea) & TEA575X_BIT_SEARCH)) { + u32 freq; + + /* Found a frequency, wait until it can be read */ + for (i = 0; i < 100; i++) { + msleep(10); + freq = snd_tea575x_get_freq(tea); + if (freq) /* available */ + break; + } + if (freq == 0) /* shouldn't happen */ + break; + /* + * if we moved by less than the spacing, or in the + * wrong direction, continue seeking + */ + if (abs(tea->freq - freq) < 16 * spacing || + (a->seek_upward && freq < tea->freq) || + (!a->seek_upward && freq > tea->freq)) { + snd_tea575x_write(tea, tea->val); + continue; + } + tea->freq = freq; + tea->val &= ~TEA575X_BIT_SEARCH; + return 0; + } + } + tea->val &= ~TEA575X_BIT_SEARCH; + snd_tea575x_set_freq(tea); + return -ENODATA; +} + +static int tea575x_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct snd_tea575x *tea = container_of(ctrl->handler, struct snd_tea575x, ctrl_handler); + + switch (ctrl->id) { + case V4L2_CID_AUDIO_MUTE: + tea->mute = ctrl->val; + snd_tea575x_set_freq(tea); + return 0; + } + + return -EINVAL; +} + +static const struct v4l2_file_operations tea575x_fops = { + .unlocked_ioctl = video_ioctl2, + .open = v4l2_fh_open, + .release = v4l2_fh_release, + .poll = v4l2_ctrl_poll, +}; + +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_frequency = vidioc_g_frequency, + .vidioc_s_frequency = vidioc_s_frequency, + .vidioc_s_hw_freq_seek = vidioc_s_hw_freq_seek, + .vidioc_enum_freq_bands = vidioc_enum_freq_bands, + .vidioc_log_status = v4l2_ctrl_log_status, + .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, + .vidioc_unsubscribe_event = v4l2_event_unsubscribe, +}; + +static const struct video_device tea575x_radio = { + .ioctl_ops = &tea575x_ioctl_ops, + .release = video_device_release_empty, +}; + +static const struct v4l2_ctrl_ops tea575x_ctrl_ops = { + .s_ctrl = tea575x_s_ctrl, +}; + +/* + * initialize all the tea575x chips + */ +int snd_tea575x_init(struct snd_tea575x *tea, struct module *owner) +{ + int retval; + + tea->mute = true; + + /* Not all devices can or know how to read the data back. + Such devices can set cannot_read_data to true. */ + if (!tea->cannot_read_data) { + snd_tea575x_write(tea, 0x55AA); + if (snd_tea575x_read(tea) != 0x55AA) + return -ENODEV; + } + + tea->val = TEA575X_BIT_BAND_FM | TEA575X_BIT_SEARCH_5_28; + tea->freq = 90500 * 16; /* 90.5Mhz default */ + snd_tea575x_set_freq(tea); + + tea->vd = tea575x_radio; + video_set_drvdata(&tea->vd, tea); + mutex_init(&tea->mutex); + strlcpy(tea->vd.name, tea->v4l2_dev->name, sizeof(tea->vd.name)); + tea->vd.lock = &tea->mutex; + tea->vd.v4l2_dev = tea->v4l2_dev; + tea->fops = tea575x_fops; + tea->fops.owner = owner; + tea->vd.fops = &tea->fops; + set_bit(V4L2_FL_USE_FH_PRIO, &tea->vd.flags); + /* disable hw_freq_seek if we can't use it */ + if (tea->cannot_read_data) + v4l2_disable_ioctl(&tea->vd, VIDIOC_S_HW_FREQ_SEEK); + + if (!tea->cannot_mute) { + tea->vd.ctrl_handler = &tea->ctrl_handler; + v4l2_ctrl_handler_init(&tea->ctrl_handler, 1); + 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) { + v4l2_err(tea->v4l2_dev, "can't initialize controls\n"); + v4l2_ctrl_handler_free(&tea->ctrl_handler); + return retval; + } + + if (tea->ext_init) { + retval = tea->ext_init(tea); + if (retval) { + v4l2_ctrl_handler_free(&tea->ctrl_handler); + return retval; + } + } + + v4l2_ctrl_handler_setup(&tea->ctrl_handler); + } + + retval = video_register_device(&tea->vd, VFL_TYPE_RADIO, tea->radio_nr); + if (retval) { + v4l2_err(tea->v4l2_dev, "can't register video device!\n"); + v4l2_ctrl_handler_free(tea->vd.ctrl_handler); + return retval; + } + + return 0; +} + +void snd_tea575x_exit(struct snd_tea575x *tea) +{ + video_unregister_device(&tea->vd); + v4l2_ctrl_handler_free(tea->vd.ctrl_handler); +} + +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); +EXPORT_SYMBOL(snd_tea575x_set_freq); diff --git a/sound/i2c/other/Makefile b/sound/i2c/other/Makefile index c95d8f1..5526b03 100644 --- a/sound/i2c/other/Makefile +++ b/sound/i2c/other/Makefile @@ -8,10 +8,8 @@ snd-ak4117-objs := ak4117.o snd-ak4113-objs := ak4113.o snd-ak4xxx-adda-objs := ak4xxx-adda.o snd-pt2258-objs := pt2258.o -snd-tea575x-tuner-objs := tea575x-tuner.o # Module Dependency obj-$(CONFIG_SND_PDAUDIOCF) += snd-ak4117.o obj-$(CONFIG_SND_ICE1712) += snd-ak4xxx-adda.o obj-$(CONFIG_SND_ICE1724) += snd-ak4114.o snd-ak4113.o snd-ak4xxx-adda.o snd-pt2258.o -obj-$(CONFIG_SND_TEA575X) += snd-tea575x-tuner.o diff --git a/sound/i2c/other/tea575x-tuner.c b/sound/i2c/other/tea575x-tuner.c deleted file mode 100644 index a1cb208..0000000 --- a/sound/i2c/other/tea575x-tuner.c +++ /dev/null @@ -1,577 +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/module.h> -#include <linux/init.h> -#include <linux/slab.h> -#include <linux/sched.h> -#include <media/v4l2-device.h> -#include <media/v4l2-dev.h> -#include <media/v4l2-fh.h> -#include <media/v4l2-ioctl.h> -#include <media/v4l2-event.h> -#include <media/tea575x.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"); - -/* - * 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 (2<<20) -#define TEA575X_BIT_BAND_SW (3<<20) -#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 - -enum { BAND_FM, BAND_FM_JAPAN, BAND_AM }; - -static const struct v4l2_frequency_band bands[] = { - { - .type = V4L2_TUNER_RADIO, - .index = 0, - .capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO | - V4L2_TUNER_CAP_FREQ_BANDS, - .rangelow = 87500 * 16, - .rangehigh = 108000 * 16, - .modulation = V4L2_BAND_MODULATION_FM, - }, - { - .type = V4L2_TUNER_RADIO, - .index = 0, - .capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO | - V4L2_TUNER_CAP_FREQ_BANDS, - .rangelow = 76000 * 16, - .rangehigh = 91000 * 16, - .modulation = V4L2_BAND_MODULATION_FM, - }, - { - .type = V4L2_TUNER_RADIO, - .index = 1, - .capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_FREQ_BANDS, - .rangelow = 530 * 16, - .rangehigh = 1710 * 16, - .modulation = V4L2_BAND_MODULATION_AM, - }, -}; - -/* - * lowlevel part - */ - -static void snd_tea575x_write(struct snd_tea575x *tea, unsigned int val) -{ - u16 l; - u8 data; - - if (tea->ops->write_val) - return tea->ops->write_val(tea, val); - - tea->ops->set_direction(tea, 1); - udelay(16); - - for (l = 25; l > 0; l--) { - data = (val >> 24) & TEA575X_DATA; - val <<= 1; /* shift data */ - tea->ops->set_pins(tea, data | TEA575X_WREN); - udelay(2); - tea->ops->set_pins(tea, data | TEA575X_WREN | TEA575X_CLK); - udelay(2); - tea->ops->set_pins(tea, data | TEA575X_WREN); - udelay(2); - } - - if (!tea->mute) - tea->ops->set_pins(tea, 0); -} - -static u32 snd_tea575x_read(struct snd_tea575x *tea) -{ - u16 l, rdata; - u32 data = 0; - - if (tea->ops->read_val) - return tea->ops->read_val(tea); - - tea->ops->set_direction(tea, 0); - tea->ops->set_pins(tea, 0); - udelay(16); - - for (l = 24; l--;) { - tea->ops->set_pins(tea, TEA575X_CLK); - udelay(2); - if (!l) - tea->tuned = tea->ops->get_pins(tea) & TEA575X_MOST ? 0 : 1; - tea->ops->set_pins(tea, 0); - udelay(2); - data <<= 1; /* shift data */ - rdata = tea->ops->get_pins(tea); - if (!l) - tea->stereo = (rdata & TEA575X_MOST) ? 0 : 1; - if (rdata & TEA575X_DATA) - data++; - udelay(2); - } - - if (tea->mute) - tea->ops->set_pins(tea, TEA575X_WREN); - - return data; -} - -static u32 snd_tea575x_val_to_freq(struct snd_tea575x *tea, u32 val) -{ - u32 freq = val & TEA575X_BIT_FREQ_MASK; - - if (freq == 0) - return freq; - - switch (tea->band) { - case BAND_FM: - /* freq *= 12.5 */ - freq *= 125; - freq /= 10; - /* crystal fixup */ - freq -= TEA575X_FMIF; - break; - case BAND_FM_JAPAN: - /* freq *= 12.5 */ - freq *= 125; - freq /= 10; - /* crystal fixup */ - freq += TEA575X_FMIF; - break; - case BAND_AM: - /* crystal fixup */ - freq -= TEA575X_AMIF; - break; - } - - return clamp(freq * 16, bands[tea->band].rangelow, - bands[tea->band].rangehigh); /* from kHz */ -} - -static u32 snd_tea575x_get_freq(struct snd_tea575x *tea) -{ - return snd_tea575x_val_to_freq(tea, snd_tea575x_read(tea)); -} - -void snd_tea575x_set_freq(struct snd_tea575x *tea) -{ - u32 freq = tea->freq / 16; /* to kHz */ - u32 band = 0; - - switch (tea->band) { - case BAND_FM: - band = TEA575X_BIT_BAND_FM; - /* crystal fixup */ - freq += TEA575X_FMIF; - /* freq /= 12.5 */ - freq *= 10; - freq /= 125; - break; - case BAND_FM_JAPAN: - band = TEA575X_BIT_BAND_FM; - /* crystal fixup */ - freq -= TEA575X_FMIF; - /* freq /= 12.5 */ - freq *= 10; - freq /= 125; - break; - case BAND_AM: - band = TEA575X_BIT_BAND_MW; - /* crystal fixup */ - freq += TEA575X_AMIF; - break; - } - - tea->val &= ~(TEA575X_BIT_FREQ_MASK | TEA575X_BIT_BAND_MASK); - tea->val |= band; - tea->val |= freq & TEA575X_BIT_FREQ_MASK; - snd_tea575x_write(tea, tea->val); - tea->freq = snd_tea575x_val_to_freq(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); - - strlcpy(v->driver, tea->v4l2_dev->name, sizeof(v->driver)); - strlcpy(v->card, tea->card, sizeof(v->card)); - strlcat(v->card, tea->tea5759 ? " TEA5759" : " TEA5757", sizeof(v->card)); - strlcpy(v->bus_info, tea->bus_info, sizeof(v->bus_info)); - v->device_caps = V4L2_CAP_TUNER | V4L2_CAP_RADIO; - if (!tea->cannot_read_data) - v->device_caps |= V4L2_CAP_HW_FREQ_SEEK; - v->capabilities = v->device_caps | V4L2_CAP_DEVICE_CAPS; - return 0; -} - -static int vidioc_enum_freq_bands(struct file *file, void *priv, - struct v4l2_frequency_band *band) -{ - struct snd_tea575x *tea = video_drvdata(file); - int index; - - if (band->tuner != 0) - return -EINVAL; - - switch (band->index) { - case 0: - if (tea->tea5759) - index = BAND_FM_JAPAN; - else - index = BAND_FM; - break; - case 1: - if (tea->has_am) { - index = BAND_AM; - break; - } - /* Fall through */ - default: - return -EINVAL; - } - - *band = bands[index]; - if (!tea->cannot_read_data) - band->capability |= V4L2_TUNER_CAP_HWSEEK_BOUNDED; - - return 0; -} - -static int vidioc_g_tuner(struct file *file, void *priv, - struct v4l2_tuner *v) -{ - struct snd_tea575x *tea = video_drvdata(file); - struct v4l2_frequency_band band_fm = { 0, }; - - if (v->index > 0) - return -EINVAL; - - snd_tea575x_read(tea); - vidioc_enum_freq_bands(file, priv, &band_fm); - - memset(v, 0, sizeof(*v)); - strlcpy(v->name, tea->has_am ? "FM/AM" : "FM", sizeof(v->name)); - v->type = V4L2_TUNER_RADIO; - v->capability = band_fm.capability; - v->rangelow = tea->has_am ? bands[BAND_AM].rangelow : band_fm.rangelow; - v->rangehigh = band_fm.rangehigh; - v->rxsubchans = tea->stereo ? V4L2_TUNER_SUB_STEREO : V4L2_TUNER_SUB_MONO; - v->audmode = (tea->val & TEA575X_BIT_MONO) ? - V4L2_TUNER_MODE_MONO : V4L2_TUNER_MODE_STEREO; - v->signal = tea->tuned ? 0xffff : 0; - return 0; -} - -static int vidioc_s_tuner(struct file *file, void *priv, - const struct v4l2_tuner *v) -{ - struct snd_tea575x *tea = video_drvdata(file); - u32 orig_val = tea->val; - - if (v->index) - return -EINVAL; - tea->val &= ~TEA575X_BIT_MONO; - if (v->audmode == V4L2_TUNER_MODE_MONO) - tea->val |= TEA575X_BIT_MONO; - /* Only apply changes if currently tuning FM */ - if (tea->band != BAND_AM && tea->val != orig_val) - snd_tea575x_set_freq(tea); - - return 0; -} - -static int vidioc_g_frequency(struct file *file, void *priv, - struct v4l2_frequency *f) -{ - struct snd_tea575x *tea = video_drvdata(file); - - if (f->tuner != 0) - return -EINVAL; - f->type = V4L2_TUNER_RADIO; - f->frequency = tea->freq; - return 0; -} - -static int vidioc_s_frequency(struct file *file, void *priv, - const struct v4l2_frequency *f) -{ - struct snd_tea575x *tea = video_drvdata(file); - - if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO) - return -EINVAL; - - if (tea->has_am && f->frequency < (20000 * 16)) - tea->band = BAND_AM; - else if (tea->tea5759) - tea->band = BAND_FM_JAPAN; - else - tea->band = BAND_FM; - - tea->freq = clamp_t(u32, f->frequency, bands[tea->band].rangelow, - bands[tea->band].rangehigh); - snd_tea575x_set_freq(tea); - return 0; -} - -static int vidioc_s_hw_freq_seek(struct file *file, void *fh, - const struct v4l2_hw_freq_seek *a) -{ - struct snd_tea575x *tea = video_drvdata(file); - unsigned long timeout; - int i, spacing; - - if (tea->cannot_read_data) - return -ENOTTY; - if (a->tuner || a->wrap_around) - return -EINVAL; - - if (file->f_flags & O_NONBLOCK) - return -EWOULDBLOCK; - - if (a->rangelow || a->rangehigh) { - for (i = 0; i < ARRAY_SIZE(bands); i++) { - if ((i == BAND_FM && tea->tea5759) || - (i == BAND_FM_JAPAN && !tea->tea5759) || - (i == BAND_AM && !tea->has_am)) - continue; - if (bands[i].rangelow == a->rangelow && - bands[i].rangehigh == a->rangehigh) - break; - } - if (i == ARRAY_SIZE(bands)) - return -EINVAL; /* No matching band found */ - if (i != tea->band) { - tea->band = i; - tea->freq = clamp(tea->freq, bands[i].rangelow, - bands[i].rangehigh); - snd_tea575x_set_freq(tea); - } - } - - spacing = (tea->band == BAND_AM) ? 5 : 50; /* kHz */ - - /* clear the frequency, HW will fill it in */ - tea->val &= ~TEA575X_BIT_FREQ_MASK; - tea->val |= TEA575X_BIT_SEARCH; - if (a->seek_upward) - tea->val |= TEA575X_BIT_UPDOWN; - else - tea->val &= ~TEA575X_BIT_UPDOWN; - snd_tea575x_write(tea, tea->val); - timeout = jiffies + msecs_to_jiffies(10000); - for (;;) { - if (time_after(jiffies, timeout)) - break; - if (schedule_timeout_interruptible(msecs_to_jiffies(10))) { - /* some signal arrived, stop search */ - tea->val &= ~TEA575X_BIT_SEARCH; - snd_tea575x_set_freq(tea); - return -ERESTARTSYS; - } - if (!(snd_tea575x_read(tea) & TEA575X_BIT_SEARCH)) { - u32 freq; - - /* Found a frequency, wait until it can be read */ - for (i = 0; i < 100; i++) { - msleep(10); - freq = snd_tea575x_get_freq(tea); - if (freq) /* available */ - break; - } - if (freq == 0) /* shouldn't happen */ - break; - /* - * if we moved by less than the spacing, or in the - * wrong direction, continue seeking - */ - if (abs(tea->freq - freq) < 16 * spacing || - (a->seek_upward && freq < tea->freq) || - (!a->seek_upward && freq > tea->freq)) { - snd_tea575x_write(tea, tea->val); - continue; - } - tea->freq = freq; - tea->val &= ~TEA575X_BIT_SEARCH; - return 0; - } - } - tea->val &= ~TEA575X_BIT_SEARCH; - snd_tea575x_set_freq(tea); - return -ENODATA; -} - -static int tea575x_s_ctrl(struct v4l2_ctrl *ctrl) -{ - struct snd_tea575x *tea = container_of(ctrl->handler, struct snd_tea575x, ctrl_handler); - - switch (ctrl->id) { - case V4L2_CID_AUDIO_MUTE: - tea->mute = ctrl->val; - snd_tea575x_set_freq(tea); - return 0; - } - - return -EINVAL; -} - -static const struct v4l2_file_operations tea575x_fops = { - .unlocked_ioctl = video_ioctl2, - .open = v4l2_fh_open, - .release = v4l2_fh_release, - .poll = v4l2_ctrl_poll, -}; - -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_frequency = vidioc_g_frequency, - .vidioc_s_frequency = vidioc_s_frequency, - .vidioc_s_hw_freq_seek = vidioc_s_hw_freq_seek, - .vidioc_enum_freq_bands = vidioc_enum_freq_bands, - .vidioc_log_status = v4l2_ctrl_log_status, - .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, - .vidioc_unsubscribe_event = v4l2_event_unsubscribe, -}; - -static const struct video_device tea575x_radio = { - .ioctl_ops = &tea575x_ioctl_ops, - .release = video_device_release_empty, -}; - -static const struct v4l2_ctrl_ops tea575x_ctrl_ops = { - .s_ctrl = tea575x_s_ctrl, -}; - -/* - * initialize all the tea575x chips - */ -int snd_tea575x_init(struct snd_tea575x *tea, struct module *owner) -{ - int retval; - - tea->mute = true; - - /* Not all devices can or know how to read the data back. - Such devices can set cannot_read_data to true. */ - if (!tea->cannot_read_data) { - snd_tea575x_write(tea, 0x55AA); - if (snd_tea575x_read(tea) != 0x55AA) - return -ENODEV; - } - - tea->val = TEA575X_BIT_BAND_FM | TEA575X_BIT_SEARCH_5_28; - tea->freq = 90500 * 16; /* 90.5Mhz default */ - snd_tea575x_set_freq(tea); - - tea->vd = tea575x_radio; - video_set_drvdata(&tea->vd, tea); - mutex_init(&tea->mutex); - strlcpy(tea->vd.name, tea->v4l2_dev->name, sizeof(tea->vd.name)); - tea->vd.lock = &tea->mutex; - tea->vd.v4l2_dev = tea->v4l2_dev; - tea->fops = tea575x_fops; - tea->fops.owner = owner; - tea->vd.fops = &tea->fops; - set_bit(V4L2_FL_USE_FH_PRIO, &tea->vd.flags); - /* disable hw_freq_seek if we can't use it */ - if (tea->cannot_read_data) - v4l2_disable_ioctl(&tea->vd, VIDIOC_S_HW_FREQ_SEEK); - - if (!tea->cannot_mute) { - tea->vd.ctrl_handler = &tea->ctrl_handler; - v4l2_ctrl_handler_init(&tea->ctrl_handler, 1); - 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) { - v4l2_err(tea->v4l2_dev, "can't initialize controls\n"); - v4l2_ctrl_handler_free(&tea->ctrl_handler); - return retval; - } - - if (tea->ext_init) { - retval = tea->ext_init(tea); - if (retval) { - v4l2_ctrl_handler_free(&tea->ctrl_handler); - return retval; - } - } - - v4l2_ctrl_handler_setup(&tea->ctrl_handler); - } - - retval = video_register_device(&tea->vd, VFL_TYPE_RADIO, tea->radio_nr); - if (retval) { - v4l2_err(tea->v4l2_dev, "can't register video device!\n"); - v4l2_ctrl_handler_free(tea->vd.ctrl_handler); - return retval; - } - - return 0; -} - -void snd_tea575x_exit(struct snd_tea575x *tea) -{ - video_unregister_device(&tea->vd); - v4l2_ctrl_handler_free(tea->vd.ctrl_handler); -} - -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); -EXPORT_SYMBOL(snd_tea575x_set_freq); diff --git a/sound/pci/Kconfig b/sound/pci/Kconfig index fe6fa93..3ef9f63 100644 --- a/sound/pci/Kconfig +++ b/sound/pci/Kconfig @@ -1,10 +1,5 @@ # ALSA PCI drivers -config SND_TEA575X - tristate - depends on SND_FM801_TEA575X_BOOL || SND_ES1968_RADIO || RADIO_SF16FMR2 || RADIO_MAXIRADIO || RADIO_SHARK - default SND_FM801 || SND_ES1968 || RADIO_SF16FMR2 || RADIO_MAXIRADIO || RADIO_SHARK - menuconfig SND_PCI bool "PCI sound devices" depends on PCI -- Ondrej Zary
participants (1)
-
Ondrej Zary