From d4ecc83b79cc290eadf1ffb33a589c3c72bbc295 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Mon, 27 Feb 2012 05:30:13 -0300 Subject: [media] tea575x-tuner: update to latest V4L2 framework requirements The tea575x-tuner module has been updated to use the latest V4L2 framework functionality. This also required changes in the drivers that rely on it. The tea575x changes are: - The drivers must provide a v4l2_device struct to the tea module. - The radio_nr module parameter must be part of the actual radio driver, and not of the tea module. - Changed the frequency range to the normal 76-108 MHz range instead of 50-150. - Add hardware frequency seek support. - Fix broken rxsubchans/audmode handling. - The application can now select between stereo and mono. - Support polling for control events. - Add V4L2 priority handling. And radio-sf16fmr2.c now uses the isa bus kernel framework. Signed-off-by: Hans Verkuil Thanks-to: Ondrej Zary Signed-off-by: Mauro Carvalho Chehab --- sound/i2c/other/tea575x-tuner.c | 146 ++++++++++++++++++++++------------------ sound/pci/es1968.c | 15 +++++ sound/pci/fm801.c | 20 +++++- 3 files changed, 113 insertions(+), 68 deletions(-) (limited to 'sound') diff --git a/sound/i2c/other/tea575x-tuner.c b/sound/i2c/other/tea575x-tuner.c index 6b68c8206805..b291bd86c4ca 100644 --- a/sound/i2c/other/tea575x-tuner.c +++ b/sound/i2c/other/tea575x-tuner.c @@ -25,21 +25,20 @@ #include #include #include -#include +#include +#include #include +#include #include +#include #include MODULE_AUTHOR("Jaroslav Kysela "); 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 (50UL * 16000) -#define FREQ_HI (150UL * 16000) +#define FREQ_LO (76U * 16000) +#define FREQ_HI (108U * 16000) /* * definitions @@ -121,28 +120,10 @@ static unsigned int snd_tea575x_read(struct snd_tea575x *tea) return data; } -static void snd_tea575x_get_freq(struct snd_tea575x *tea) -{ - unsigned long freq; - - freq = snd_tea575x_read(tea) & TEA575X_BIT_FREQ_MASK; - /* freq *= 12.5 */ - freq *= 125; - freq /= 10; - /* crystal fixup */ - if (tea->tea5759) - freq += TEA575X_FMIF; - else - freq -= TEA575X_FMIF; - - tea->freq = freq * 16; /* from kHz */ -} - static void snd_tea575x_set_freq(struct snd_tea575x *tea) { - unsigned long freq; + u32 freq = tea->freq; - freq = clamp(tea->freq, FREQ_LO, FREQ_HI); freq /= 16; /* to kHz */ /* crystal fixup */ if (tea->tea5759) @@ -167,12 +148,14 @@ static int vidioc_querycap(struct file *file, void *priv, { struct snd_tea575x *tea = video_drvdata(file); - strlcpy(v->driver, "tea575x-tuner", sizeof(v->driver)); + 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->version = RADIO_VERSION; - v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO; + 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; } @@ -191,18 +174,24 @@ static int vidioc_g_tuner(struct file *file, void *priv, v->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO; v->rangelow = FREQ_LO; v->rangehigh = FREQ_HI; - v->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO; - v->audmode = tea->stereo ? V4L2_TUNER_MODE_STEREO : V4L2_TUNER_MODE_MONO; + 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, struct v4l2_tuner *v) { - if (v->index > 0) + struct snd_tea575x *tea = video_drvdata(file); + + if (v->index) return -EINVAL; + tea->val &= ~TEA575X_BIT_MONO; + if (v->audmode == V4L2_TUNER_MODE_MONO) + tea->val |= TEA575X_BIT_MONO; + snd_tea575x_write(tea, tea->val); return 0; } @@ -214,7 +203,6 @@ static int vidioc_g_frequency(struct file *file, void *priv, if (f->tuner != 0) return -EINVAL; f->type = V4L2_TUNER_RADIO; - snd_tea575x_get_freq(tea); f->frequency = tea->freq; return 0; } @@ -227,32 +215,47 @@ static int vidioc_s_frequency(struct file *file, void *priv, if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO) return -EINVAL; - if (f->frequency < FREQ_LO || f->frequency > FREQ_HI) - return -EINVAL; - - tea->freq = f->frequency; - + tea->val &= ~TEA575X_BIT_SEARCH; + tea->freq = clamp(f->frequency, FREQ_LO, FREQ_HI); snd_tea575x_set_freq(tea); - return 0; } -static int vidioc_g_audio(struct file *file, void *priv, - struct v4l2_audio *a) +static int vidioc_s_hw_freq_seek(struct file *file, void *fh, + struct v4l2_hw_freq_seek *a) { - if (a->index > 1) - return -EINVAL; - - strcpy(a->name, "Radio"); - a->capability = V4L2_AUDCAP_STEREO; - return 0; -} + struct snd_tea575x *tea = video_drvdata(file); -static int vidioc_s_audio(struct file *file, void *priv, - struct v4l2_audio *a) -{ - if (a->index != 0) + if (tea->cannot_read_data) + return -ENOTTY; + if (a->tuner || a->wrap_around) return -EINVAL; + tea->val |= TEA575X_BIT_SEARCH; + tea->val &= ~TEA575X_BIT_UPDOWN; + if (a->seek_upward) + tea->val |= TEA575X_BIT_UPDOWN; + snd_tea575x_write(tea, tea->val); + for (;;) { + unsigned val = snd_tea575x_read(tea); + + if (!(val & TEA575X_BIT_SEARCH)) { + /* Found a frequency */ + val &= TEA575X_BIT_FREQ_MASK; + val = (val * 10) / 125; + if (tea->tea5759) + val += TEA575X_FMIF; + else + val -= TEA575X_FMIF; + tea->freq = clamp(val * 16, FREQ_LO, FREQ_HI); + return 0; + } + if (schedule_timeout_interruptible(msecs_to_jiffies(10))) { + /* some signal arrived, stop search */ + tea->val &= ~TEA575X_BIT_SEARCH; + snd_tea575x_write(tea, tea->val); + return -ERESTARTSYS; + } + } return 0; } @@ -273,23 +276,27 @@ static int tea575x_s_ctrl(struct v4l2_ctrl *ctrl) static const struct v4l2_file_operations tea575x_fops = { .owner = THIS_MODULE, .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_audio = vidioc_g_audio, - .vidioc_s_audio = vidioc_s_audio, .vidioc_g_frequency = vidioc_g_frequency, .vidioc_s_frequency = vidioc_s_frequency, + .vidioc_s_hw_freq_seek = vidioc_s_hw_freq_seek, + .vidioc_log_status = v4l2_ctrl_log_status, + .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, + .vidioc_unsubscribe_event = v4l2_event_unsubscribe, }; -static struct video_device tea575x_radio = { - .name = "tea575x-tuner", +static const struct video_device tea575x_radio = { .fops = &tea575x_fops, .ioctl_ops = &tea575x_ioctl_ops, - .release = video_device_release_empty, + .release = video_device_release_empty, }; static const struct v4l2_ctrl_ops tea575x_ctrl_ops = { @@ -303,11 +310,15 @@ int snd_tea575x_init(struct snd_tea575x *tea) { int retval; - tea->mute = 1; + tea->mute = true; - snd_tea575x_write(tea, 0x55AA); - if (snd_tea575x_read(tea) != 0x55AA) - return -ENODEV; + /* 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_10_40; tea->freq = 90500 * 16; /* 90.5Mhz default */ @@ -316,14 +327,17 @@ int snd_tea575x_init(struct snd_tea575x *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->vd.ctrl_handler = &tea->ctrl_handler; + set_bit(V4L2_FL_USE_FH_PRIO, &tea->vd.flags); 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_err(tea->v4l2_dev, "can't initialize controls\n"); v4l2_ctrl_handler_free(&tea->ctrl_handler); return retval; } @@ -338,9 +352,9 @@ int snd_tea575x_init(struct snd_tea575x *tea) v4l2_ctrl_handler_setup(&tea->ctrl_handler); - retval = video_register_device(&tea->vd, VFL_TYPE_RADIO, radio_nr); + retval = video_register_device(&tea->vd, VFL_TYPE_RADIO, tea->radio_nr); if (retval) { - printk(KERN_ERR "tea575x-tuner: can't register video device!\n"); + v4l2_err(tea->v4l2_dev, "can't register video device!\n"); v4l2_ctrl_handler_free(&tea->ctrl_handler); return retval; } diff --git a/sound/pci/es1968.c b/sound/pci/es1968.c index cb557c603a80..a8faae1c85e4 100644 --- a/sound/pci/es1968.c +++ b/sound/pci/es1968.c @@ -142,6 +142,7 @@ static int enable_mpu[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2}; #ifdef SUPPORT_JOYSTICK static bool joystick[SNDRV_CARDS]; #endif +static int radio_nr[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1}; module_param_array(index, int, NULL, 0444); MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard."); @@ -165,6 +166,9 @@ MODULE_PARM_DESC(enable_mpu, "Enable MPU401. (0 = off, 1 = on, 2 = auto)"); module_param_array(joystick, bool, NULL, 0444); MODULE_PARM_DESC(joystick, "Enable joystick."); #endif +module_param_array(radio_nr, int, NULL, 0444); +MODULE_PARM_DESC(radio_nr, "Radio device numbers"); + #define NR_APUS 64 @@ -558,6 +562,7 @@ struct es1968 { struct work_struct hwvol_work; #ifdef CONFIG_SND_ES1968_RADIO + struct v4l2_device v4l2_dev; struct snd_tea575x tea; #endif }; @@ -2613,6 +2618,7 @@ static int snd_es1968_free(struct es1968 *chip) #ifdef CONFIG_SND_ES1968_RADIO snd_tea575x_exit(&chip->tea); + v4l2_device_unregister(&chip->v4l2_dev); #endif if (chip->irq >= 0) @@ -2655,6 +2661,7 @@ static int __devinit snd_es1968_create(struct snd_card *card, int capt_streams, int chip_type, int do_pm, + int radio_nr, struct es1968 **chip_ret) { static struct snd_device_ops ops = { @@ -2751,7 +2758,14 @@ static int __devinit snd_es1968_create(struct snd_card *card, snd_card_set_dev(card, &pci->dev); #ifdef CONFIG_SND_ES1968_RADIO + err = v4l2_device_register(&pci->dev, &chip->v4l2_dev); + if (err < 0) { + snd_es1968_free(chip); + return err; + } + chip->tea.v4l2_dev = &chip->v4l2_dev; chip->tea.private_data = chip; + chip->tea.radio_nr = radio_nr; chip->tea.ops = &snd_es1968_tea_ops; strlcpy(chip->tea.card, "SF64-PCE2", sizeof(chip->tea.card)); sprintf(chip->tea.bus_info, "PCI:%s", pci_name(pci)); @@ -2797,6 +2811,7 @@ static int __devinit snd_es1968_probe(struct pci_dev *pci, pcm_substreams_c[dev], pci_id->driver_data, use_pm[dev], + radio_nr[dev], &chip)) < 0) { snd_card_free(card); return err; diff --git a/sound/pci/fm801.c b/sound/pci/fm801.c index 9597ef1eccca..a416ea8af3e9 100644 --- a/sound/pci/fm801.c +++ b/sound/pci/fm801.c @@ -58,6 +58,7 @@ static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card * High 16-bits are video (radio) device number + 1 */ static int tea575x_tuner[SNDRV_CARDS]; +static int radio_nr[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1}; module_param_array(index, int, NULL, 0444); MODULE_PARM_DESC(index, "Index value for the FM801 soundcard."); @@ -67,6 +68,9 @@ module_param_array(enable, bool, NULL, 0444); MODULE_PARM_DESC(enable, "Enable FM801 soundcard."); module_param_array(tea575x_tuner, int, NULL, 0444); MODULE_PARM_DESC(tea575x_tuner, "TEA575x tuner access method (0 = auto, 1 = SF256-PCS, 2=SF256-PCP, 3=SF64-PCR, 8=disable, +16=tuner-only)."); +module_param_array(radio_nr, int, NULL, 0444); +MODULE_PARM_DESC(radio_nr, "Radio device numbers"); + #define TUNER_DISABLED (1<<3) #define TUNER_ONLY (1<<4) @@ -197,6 +201,7 @@ struct fm801 { struct snd_info_entry *proc_entry; #ifdef CONFIG_SND_FM801_TEA575X_BOOL + struct v4l2_device v4l2_dev; struct snd_tea575x tea; #endif @@ -1154,8 +1159,10 @@ static int snd_fm801_free(struct fm801 *chip) __end_hw: #ifdef CONFIG_SND_FM801_TEA575X_BOOL - if (!(chip->tea575x_tuner & TUNER_DISABLED)) + if (!(chip->tea575x_tuner & TUNER_DISABLED)) { snd_tea575x_exit(&chip->tea); + v4l2_device_unregister(&chip->v4l2_dev); + } #endif if (chip->irq >= 0) free_irq(chip->irq, chip); @@ -1175,6 +1182,7 @@ static int snd_fm801_dev_free(struct snd_device *device) static int __devinit snd_fm801_create(struct snd_card *card, struct pci_dev * pci, int tea575x_tuner, + int radio_nr, struct fm801 ** rchip) { struct fm801 *chip; @@ -1234,6 +1242,13 @@ static int __devinit snd_fm801_create(struct snd_card *card, snd_card_set_dev(card, &pci->dev); #ifdef CONFIG_SND_FM801_TEA575X_BOOL + err = v4l2_device_register(&pci->dev, &chip->v4l2_dev); + if (err < 0) { + snd_fm801_free(chip); + return err; + } + chip->tea.v4l2_dev = &chip->v4l2_dev; + chip->tea.radio_nr = radio_nr; chip->tea.private_data = chip; chip->tea.ops = &snd_fm801_tea_ops; sprintf(chip->tea.bus_info, "PCI:%s", pci_name(pci)); @@ -1241,6 +1256,7 @@ static int __devinit snd_fm801_create(struct snd_card *card, (tea575x_tuner & TUNER_TYPE_MASK) < 4) { if (snd_tea575x_init(&chip->tea)) { snd_printk(KERN_ERR "TEA575x radio not found\n"); + snd_fm801_free(chip); return -ENODEV; } } else if ((tea575x_tuner & TUNER_TYPE_MASK) == 0) { @@ -1287,7 +1303,7 @@ static int __devinit snd_card_fm801_probe(struct pci_dev *pci, err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card); if (err < 0) return err; - if ((err = snd_fm801_create(card, pci, tea575x_tuner[dev], &chip)) < 0) { + if ((err = snd_fm801_create(card, pci, tea575x_tuner[dev], radio_nr[dev], &chip)) < 0) { snd_card_free(card); return err; } -- cgit v1.2.3 From bc2b395c031430639e5ad5dcb2669cfcf1fa5fd2 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Mon, 27 Feb 2012 05:31:58 -0300 Subject: [media] tea575x: fix HW seek Fix HW seek in TEA575x to work properly: - a delay must be present after search start and before first register read or the seek does weird things - when the search stops, the new frequency is not available immediately, we must wait until it appears in the register (fortunately, we can clear the frequency bits when starting the search as it starts at the frequency currently set, not from the value written) - sometimes, seek remains on the current frequency (or moves only a little), so repeat it until it moves by at least 50 kHz Signed-off-by: Ondrej Zary Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- sound/i2c/other/tea575x-tuner.c | 79 +++++++++++++++++++++++++++++++---------- 1 file changed, 61 insertions(+), 18 deletions(-) (limited to 'sound') diff --git a/sound/i2c/other/tea575x-tuner.c b/sound/i2c/other/tea575x-tuner.c index b291bd86c4ca..a63faec5e7fd 100644 --- a/sound/i2c/other/tea575x-tuner.c +++ b/sound/i2c/other/tea575x-tuner.c @@ -89,7 +89,7 @@ static void snd_tea575x_write(struct snd_tea575x *tea, unsigned int val) tea->ops->set_pins(tea, 0); } -static unsigned int snd_tea575x_read(struct snd_tea575x *tea) +static u32 snd_tea575x_read(struct snd_tea575x *tea) { u16 l, rdata; u32 data = 0; @@ -120,6 +120,25 @@ static unsigned int snd_tea575x_read(struct snd_tea575x *tea) return data; } +static u32 snd_tea575x_get_freq(struct snd_tea575x *tea) +{ + u32 freq = snd_tea575x_read(tea) & TEA575X_BIT_FREQ_MASK; + + if (freq == 0) + return freq; + + /* freq *= 12.5 */ + freq *= 125; + freq /= 10; + /* crystal fixup */ + if (tea->tea5759) + freq += TEA575X_FMIF; + else + freq -= TEA575X_FMIF; + + return clamp(freq * 16, FREQ_LO, FREQ_HI); /* from kHz */ +} + static void snd_tea575x_set_freq(struct snd_tea575x *tea) { u32 freq = tea->freq; @@ -225,38 +244,62 @@ static int vidioc_s_hw_freq_seek(struct file *file, void *fh, struct v4l2_hw_freq_seek *a) { struct snd_tea575x *tea = video_drvdata(file); + unsigned long timeout; + int i; if (tea->cannot_read_data) return -ENOTTY; if (a->tuner || a->wrap_around) return -EINVAL; + + /* clear the frequency, HW will fill it in */ + tea->val &= ~TEA575X_BIT_FREQ_MASK; tea->val |= TEA575X_BIT_SEARCH; - tea->val &= ~TEA575X_BIT_UPDOWN; 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 (;;) { - unsigned val = snd_tea575x_read(tea); - - if (!(val & TEA575X_BIT_SEARCH)) { - /* Found a frequency */ - val &= TEA575X_BIT_FREQ_MASK; - val = (val * 10) / 125; - if (tea->tea5759) - val += TEA575X_FMIF; - else - val -= TEA575X_FMIF; - tea->freq = clamp(val * 16, FREQ_LO, FREQ_HI); - return 0; - } + 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_write(tea, tea->val); + 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 50 kHz, or in the wrong + * direction, continue seeking + */ + if (abs(tea->freq - freq) < 16 * 50 || + (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; + } } - return 0; + tea->val &= ~TEA575X_BIT_SEARCH; + snd_tea575x_set_freq(tea); + return -EAGAIN; } static int tea575x_s_ctrl(struct v4l2_ctrl *ctrl) @@ -320,7 +363,7 @@ int snd_tea575x_init(struct snd_tea575x *tea) return -ENODEV; } - tea->val = TEA575X_BIT_BAND_FM | TEA575X_BIT_SEARCH_10_40; + tea->val = TEA575X_BIT_BAND_FM | TEA575X_BIT_SEARCH_5_28; tea->freq = 90500 * 16; /* 90.5Mhz default */ snd_tea575x_set_freq(tea); -- cgit v1.2.3