diff options
Diffstat (limited to 'drivers/media/radio')
22 files changed, 2009 insertions, 1077 deletions
diff --git a/drivers/media/radio/Kconfig b/drivers/media/radio/Kconfig index 24e64a09884..c0beee2fa37 100644 --- a/drivers/media/radio/Kconfig +++ b/drivers/media/radio/Kconfig @@ -18,6 +18,22 @@ config RADIO_SI470X source "drivers/media/radio/si470x/Kconfig" +config RADIO_SI476X + tristate "Silicon Laboratories Si476x I2C FM Radio" + depends on I2C && VIDEO_V4L2 + depends on MFD_SI476X_CORE + select SND_SOC_SI476X + ---help--- + Choose Y here if you have this FM radio chip. + + In order to control your radio card, you will need to use programs + that are compatible with the Video For Linux 2 API. Information on + this API and pointers to "v4l2" programs may be found at + <file:Documentation/video4linux/API.html>. + + To compile this driver as a module, choose M here: the + module will be called radio-si476x. + config USB_MR800 tristate "AverMedia MR 800 USB FM radio support" depends on USB && VIDEO_V4L2 diff --git a/drivers/media/radio/Makefile b/drivers/media/radio/Makefile index 303eaebdb85..0dcdb320cfc 100644 --- a/drivers/media/radio/Makefile +++ b/drivers/media/radio/Makefile @@ -19,6 +19,7 @@ obj-$(CONFIG_RADIO_GEMTEK) += radio-gemtek.o obj-$(CONFIG_RADIO_TRUST) += radio-trust.o obj-$(CONFIG_I2C_SI4713) += si4713-i2c.o obj-$(CONFIG_RADIO_SI4713) += radio-si4713.o +obj-$(CONFIG_RADIO_SI476X) += radio-si476x.o obj-$(CONFIG_RADIO_MIROPCM20) += radio-miropcm20.o obj-$(CONFIG_USB_DSBR) += dsbr100.o obj-$(CONFIG_RADIO_SI470X) += si470x/ diff --git a/drivers/media/radio/dsbr100.c b/drivers/media/radio/dsbr100.c index 63b112b555b..142c2ee64d3 100644 --- a/drivers/media/radio/dsbr100.c +++ b/drivers/media/radio/dsbr100.c @@ -208,13 +208,13 @@ static int vidioc_g_tuner(struct file *file, void *priv, } static int vidioc_s_tuner(struct file *file, void *priv, - struct v4l2_tuner *v) + const struct v4l2_tuner *v) { return v->index ? -EINVAL : 0; } static int vidioc_s_frequency(struct file *file, void *priv, - struct v4l2_frequency *f) + const struct v4l2_frequency *f) { struct dsbr100_device *radio = video_drvdata(file); diff --git a/drivers/media/radio/radio-cadet.c b/drivers/media/radio/radio-cadet.c index 643d80ac28f..545c04cf722 100644 --- a/drivers/media/radio/radio-cadet.c +++ b/drivers/media/radio/radio-cadet.c @@ -90,6 +90,26 @@ static u16 sigtable[2][4] = { { 2185, 4369, 13107, 65535 }, }; +static const struct v4l2_frequency_band bands[] = { + { + .index = 0, + .type = V4L2_TUNER_RADIO, + .capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_FREQ_BANDS, + .rangelow = 8320, /* 520 kHz */ + .rangehigh = 26400, /* 1650 kHz */ + .modulation = V4L2_BAND_MODULATION_AM, + }, { + .index = 1, + .type = V4L2_TUNER_RADIO, + .capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_RDS | + V4L2_TUNER_CAP_RDS_BLOCK_IO | V4L2_TUNER_CAP_LOW | + V4L2_TUNER_CAP_FREQ_BANDS, + .rangelow = 1400000, /* 87.5 MHz */ + .rangehigh = 1728000, /* 108.0 MHz */ + .modulation = V4L2_BAND_MODULATION_FM, + }, +}; + static int cadet_getstereo(struct cadet *dev) { @@ -196,6 +216,8 @@ static void cadet_setfreq(struct cadet *dev, unsigned freq) int i, j, test; int curvol; + freq = clamp(freq, bands[dev->is_fm_band].rangelow, + bands[dev->is_fm_band].rangehigh); dev->curfreq = freq; /* * Formulate a fifo command @@ -337,26 +359,6 @@ static int vidioc_querycap(struct file *file, void *priv, return 0; } -static const struct v4l2_frequency_band bands[] = { - { - .index = 0, - .type = V4L2_TUNER_RADIO, - .capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_FREQ_BANDS, - .rangelow = 8320, /* 520 kHz */ - .rangehigh = 26400, /* 1650 kHz */ - .modulation = V4L2_BAND_MODULATION_AM, - }, { - .index = 1, - .type = V4L2_TUNER_RADIO, - .capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_RDS | - V4L2_TUNER_CAP_RDS_BLOCK_IO | V4L2_TUNER_CAP_LOW | - V4L2_TUNER_CAP_FREQ_BANDS, - .rangelow = 1400000, /* 87.5 MHz */ - .rangehigh = 1728000, /* 108.0 MHz */ - .modulation = V4L2_BAND_MODULATION_FM, - }, -}; - static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *v) { @@ -388,7 +390,7 @@ static int vidioc_g_tuner(struct file *file, void *priv, } static int vidioc_s_tuner(struct file *file, void *priv, - struct v4l2_tuner *v) + const struct v4l2_tuner *v) { return v->index ? -EINVAL : 0; } @@ -418,7 +420,7 @@ static int vidioc_g_frequency(struct file *file, void *priv, static int vidioc_s_frequency(struct file *file, void *priv, - struct v4l2_frequency *f) + const struct v4l2_frequency *f) { struct cadet *dev = video_drvdata(file); @@ -426,8 +428,6 @@ static int vidioc_s_frequency(struct file *file, void *priv, return -EINVAL; dev->is_fm_band = f->frequency >= (bands[0].rangehigh + bands[1].rangelow) / 2; - clamp(f->frequency, bands[dev->is_fm_band].rangelow, - bands[dev->is_fm_band].rangehigh); cadet_setfreq(dev, f->frequency); return 0; } diff --git a/drivers/media/radio/radio-isa.c b/drivers/media/radio/radio-isa.c index 84b7b9f4385..6ff350831d5 100644 --- a/drivers/media/radio/radio-isa.c +++ b/drivers/media/radio/radio-isa.c @@ -51,8 +51,8 @@ static int radio_isa_querycap(struct file *file, void *priv, strlcpy(v->card, isa->drv->card, sizeof(v->card)); snprintf(v->bus_info, sizeof(v->bus_info), "ISA:%s", isa->v4l2_dev.name); - v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO; - v->device_caps = v->capabilities | V4L2_CAP_DEVICE_CAPS; + v->device_caps = V4L2_CAP_TUNER | V4L2_CAP_RADIO; + v->capabilities = v->device_caps | V4L2_CAP_DEVICE_CAPS; return 0; } @@ -87,7 +87,7 @@ static int radio_isa_g_tuner(struct file *file, void *priv, } static int radio_isa_s_tuner(struct file *file, void *priv, - struct v4l2_tuner *v) + const struct v4l2_tuner *v) { struct radio_isa_card *isa = video_drvdata(file); const struct radio_isa_ops *ops = isa->drv->ops; @@ -102,17 +102,18 @@ static int radio_isa_s_tuner(struct file *file, void *priv, } static int radio_isa_s_frequency(struct file *file, void *priv, - struct v4l2_frequency *f) + const struct v4l2_frequency *f) { struct radio_isa_card *isa = video_drvdata(file); + u32 freq = f->frequency; int res; if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO) return -EINVAL; - f->frequency = clamp(f->frequency, FREQ_LOW, FREQ_HIGH); - res = isa->drv->ops->s_frequency(isa, f->frequency); + freq = clamp(freq, FREQ_LOW, FREQ_HIGH); + res = isa->drv->ops->s_frequency(isa, freq); if (res == 0) - isa->freq = f->frequency; + isa->freq = freq; return res; } diff --git a/drivers/media/radio/radio-keene.c b/drivers/media/radio/radio-keene.c index 296941a9ae2..4c9ae767fb3 100644 --- a/drivers/media/radio/radio-keene.c +++ b/drivers/media/radio/radio-keene.c @@ -215,15 +215,15 @@ static int vidioc_s_modulator(struct file *file, void *priv, } static int vidioc_s_frequency(struct file *file, void *priv, - struct v4l2_frequency *f) + const struct v4l2_frequency *f) { struct keene_device *radio = video_drvdata(file); + unsigned freq = f->frequency; if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO) return -EINVAL; - f->frequency = clamp(f->frequency, - FREQ_MIN * FREQ_MUL, FREQ_MAX * FREQ_MUL); - return keene_cmd_main(radio, f->frequency, true); + freq = clamp(freq, FREQ_MIN * FREQ_MUL, FREQ_MAX * FREQ_MUL); + return keene_cmd_main(radio, freq, true); } static int vidioc_g_frequency(struct file *file, void *priv, diff --git a/drivers/media/radio/radio-ma901.c b/drivers/media/radio/radio-ma901.c index 348dafc0318..a85b064cb7b 100644 --- a/drivers/media/radio/radio-ma901.c +++ b/drivers/media/radio/radio-ma901.c @@ -239,7 +239,7 @@ static int vidioc_g_tuner(struct file *file, void *priv, /* vidioc_s_tuner - set tuner attributes */ static int vidioc_s_tuner(struct file *file, void *priv, - struct v4l2_tuner *v) + const struct v4l2_tuner *v) { struct ma901radio_device *radio = video_drvdata(file); @@ -257,7 +257,7 @@ static int vidioc_s_tuner(struct file *file, void *priv, /* vidioc_s_frequency - set tuner radio frequency */ static int vidioc_s_frequency(struct file *file, void *priv, - struct v4l2_frequency *f) + const struct v4l2_frequency *f) { struct ma901radio_device *radio = video_drvdata(file); diff --git a/drivers/media/radio/radio-miropcm20.c b/drivers/media/radio/radio-miropcm20.c index 3d0ff4404d1..a7e93d7477d 100644 --- a/drivers/media/radio/radio-miropcm20.c +++ b/drivers/media/radio/radio-miropcm20.c @@ -103,16 +103,18 @@ static int vidioc_g_tuner(struct file *file, void *priv, } static int vidioc_s_tuner(struct file *file, void *priv, - struct v4l2_tuner *v) + const struct v4l2_tuner *v) { struct pcm20 *dev = video_drvdata(file); if (v->index) return -EINVAL; if (v->audmode > V4L2_TUNER_MODE_STEREO) - v->audmode = V4L2_TUNER_MODE_STEREO; + dev->audmode = V4L2_TUNER_MODE_STEREO; + else + dev->audmode = v->audmode; snd_aci_cmd(dev->aci, ACI_SET_TUNERMONO, - v->audmode == V4L2_TUNER_MODE_MONO, -1); + dev->audmode == V4L2_TUNER_MODE_MONO, -1); return 0; } @@ -131,14 +133,14 @@ static int vidioc_g_frequency(struct file *file, void *priv, static int vidioc_s_frequency(struct file *file, void *priv, - struct v4l2_frequency *f) + const struct v4l2_frequency *f) { struct pcm20 *dev = video_drvdata(file); if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO) return -EINVAL; - dev->freq = clamp(f->frequency, 87 * 16000U, 108 * 16000U); + dev->freq = clamp_t(u32, f->frequency, 87 * 16000U, 108 * 16000U); pcm20_setfreq(dev, dev->freq); return 0; } diff --git a/drivers/media/radio/radio-mr800.c b/drivers/media/radio/radio-mr800.c index 9c5a267b60b..a360227ca3a 100644 --- a/drivers/media/radio/radio-mr800.c +++ b/drivers/media/radio/radio-mr800.c @@ -203,10 +203,14 @@ static int amradio_set_mute(struct amradio_device *radio, bool mute) /* set a frequency, freq is defined by v4l's TUNER_LOW, i.e. 1/16th kHz */ static int amradio_set_freq(struct amradio_device *radio, int freq) { - unsigned short freq_send = 0x10 + (freq >> 3) / 25; + unsigned short freq_send; u8 buf[3]; int retval; + /* we need to be sure that frequency isn't out of range */ + freq = clamp_t(unsigned, freq, FREQ_MIN * FREQ_MUL, FREQ_MAX * FREQ_MUL); + freq_send = 0x10 + (freq >> 3) / 25; + /* frequency is calculated from freq_send and placed in first 2 bytes */ buf[0] = (freq_send >> 8) & 0xff; buf[1] = freq_send & 0xff; @@ -305,7 +309,7 @@ static int vidioc_g_tuner(struct file *file, void *priv, /* vidioc_s_tuner - set tuner attributes */ static int vidioc_s_tuner(struct file *file, void *priv, - struct v4l2_tuner *v) + const struct v4l2_tuner *v) { struct amradio_device *radio = video_drvdata(file); @@ -323,14 +327,13 @@ static int vidioc_s_tuner(struct file *file, void *priv, /* vidioc_s_frequency - set tuner radio frequency */ static int vidioc_s_frequency(struct file *file, void *priv, - struct v4l2_frequency *f) + const struct v4l2_frequency *f) { struct amradio_device *radio = video_drvdata(file); if (f->tuner != 0) return -EINVAL; - return amradio_set_freq(radio, clamp_t(unsigned, f->frequency, - FREQ_MIN * FREQ_MUL, FREQ_MAX * FREQ_MUL)); + return amradio_set_freq(radio, f->frequency); } /* vidioc_g_frequency - get tuner radio frequency */ @@ -389,6 +392,7 @@ static int vidioc_s_hw_freq_seek(struct file *file, void *priv, continue; amradio_send_cmd(radio, AMRADIO_GET_FREQ, 0, NULL, 0, true); if (radio->buffer[1] || radio->buffer[2]) { + /* To check: sometimes radio->curfreq is set to out of range value */ radio->curfreq = (radio->buffer[1] << 8) | radio->buffer[2]; radio->curfreq = (radio->curfreq - 0x10) * 200; amradio_send_cmd(radio, AMRADIO_STOP_SEARCH, diff --git a/drivers/media/radio/radio-rtrack2.c b/drivers/media/radio/radio-rtrack2.c index b1f844c64fd..09cfbc373c9 100644 --- a/drivers/media/radio/radio-rtrack2.c +++ b/drivers/media/radio/radio-rtrack2.c @@ -8,6 +8,8 @@ * * Converted to the radio-isa framework by Hans Verkuil <hans.verkuil@cisco.com> * Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org> + * + * Fully tested with actual hardware and the v4l2-compliance tool. */ #include <linux/module.h> /* Modules */ @@ -81,8 +83,7 @@ static int rtrack2_s_frequency(struct radio_isa_card *isa, u32 freq) zero(isa); outb_p(0xc8, isa->io); - if (!v4l2_ctrl_g_ctrl(isa->mute)) - outb_p(0, isa->io); + outb_p(v4l2_ctrl_g_ctrl(isa->mute), isa->io); return 0; } diff --git a/drivers/media/radio/radio-sf16fmi.c b/drivers/media/radio/radio-sf16fmi.c index 637a5556495..adfcc61bdf0 100644 --- a/drivers/media/radio/radio-sf16fmi.c +++ b/drivers/media/radio/radio-sf16fmi.c @@ -145,13 +145,13 @@ static int vidioc_g_tuner(struct file *file, void *priv, } static int vidioc_s_tuner(struct file *file, void *priv, - struct v4l2_tuner *v) + const struct v4l2_tuner *v) { return v->index ? -EINVAL : 0; } static int vidioc_s_frequency(struct file *file, void *priv, - struct v4l2_frequency *f) + const struct v4l2_frequency *f) { struct fmi *fmi = video_drvdata(file); diff --git a/drivers/media/radio/radio-si4713.c b/drivers/media/radio/radio-si4713.c index 1507c9d508d..ba4cfc94686 100644 --- a/drivers/media/radio/radio-si4713.c +++ b/drivers/media/radio/radio-si4713.c @@ -31,6 +31,9 @@ #include <media/v4l2-device.h> #include <media/v4l2-common.h> #include <media/v4l2-ioctl.h> +#include <media/v4l2-fh.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-event.h> #include <media/radio-si4713.h> /* module parameters */ @@ -39,54 +42,30 @@ module_param(radio_nr, int, 0); MODULE_PARM_DESC(radio_nr, "Minor number for radio device (-1 ==> auto assign)"); -MODULE_LICENSE("GPL"); +MODULE_LICENSE("GPL v2"); MODULE_AUTHOR("Eduardo Valentin <eduardo.valentin@nokia.com>"); MODULE_DESCRIPTION("Platform driver for Si4713 FM Radio Transmitter"); MODULE_VERSION("0.0.1"); +MODULE_ALIAS("platform:radio-si4713"); /* Driver state struct */ struct radio_si4713_device { struct v4l2_device v4l2_dev; - struct video_device *radio_dev; + struct video_device radio_dev; + struct mutex lock; }; /* radio_si4713_fops - file operations interface */ static const struct v4l2_file_operations radio_si4713_fops = { .owner = THIS_MODULE, + .open = v4l2_fh_open, + .release = v4l2_fh_release, + .poll = v4l2_ctrl_poll, /* Note: locking is done at the subdev level in the i2c driver. */ .unlocked_ioctl = video_ioctl2, }; /* Video4Linux Interface */ -static int radio_si4713_fill_audout(struct v4l2_audioout *vao) -{ - /* TODO: check presence of audio output */ - strlcpy(vao->name, "FM Modulator Audio Out", 32); - - return 0; -} - -static int radio_si4713_enumaudout(struct file *file, void *priv, - struct v4l2_audioout *vao) -{ - return radio_si4713_fill_audout(vao); -} - -static int radio_si4713_g_audout(struct file *file, void *priv, - struct v4l2_audioout *vao) -{ - int rval = radio_si4713_fill_audout(vao); - - vao->index = 0; - - return rval; -} - -static int radio_si4713_s_audout(struct file *file, void *priv, - const struct v4l2_audioout *vao) -{ - return vao->index ? -EINVAL : 0; -} /* radio_si4713_querycap - query device capabilities */ static int radio_si4713_querycap(struct file *file, void *priv, @@ -94,67 +73,15 @@ static int radio_si4713_querycap(struct file *file, void *priv, { strlcpy(capability->driver, "radio-si4713", sizeof(capability->driver)); strlcpy(capability->card, "Silicon Labs Si4713 Modulator", - sizeof(capability->card)); - capability->capabilities = V4L2_CAP_MODULATOR | V4L2_CAP_RDS_OUTPUT; + sizeof(capability->card)); + strlcpy(capability->bus_info, "platform:radio-si4713", + sizeof(capability->bus_info)); + capability->device_caps = V4L2_CAP_MODULATOR | V4L2_CAP_RDS_OUTPUT; + capability->capabilities = capability->device_caps | V4L2_CAP_DEVICE_CAPS; return 0; } -/* radio_si4713_queryctrl - enumerate control items */ -static int radio_si4713_queryctrl(struct file *file, void *priv, - struct v4l2_queryctrl *qc) -{ - /* Must be sorted from low to high control ID! */ - static const u32 user_ctrls[] = { - V4L2_CID_USER_CLASS, - V4L2_CID_AUDIO_MUTE, - 0 - }; - - /* Must be sorted from low to high control ID! */ - static const u32 fmtx_ctrls[] = { - V4L2_CID_FM_TX_CLASS, - V4L2_CID_RDS_TX_DEVIATION, - V4L2_CID_RDS_TX_PI, - V4L2_CID_RDS_TX_PTY, - V4L2_CID_RDS_TX_PS_NAME, - V4L2_CID_RDS_TX_RADIO_TEXT, - V4L2_CID_AUDIO_LIMITER_ENABLED, - V4L2_CID_AUDIO_LIMITER_RELEASE_TIME, - V4L2_CID_AUDIO_LIMITER_DEVIATION, - V4L2_CID_AUDIO_COMPRESSION_ENABLED, - V4L2_CID_AUDIO_COMPRESSION_GAIN, - V4L2_CID_AUDIO_COMPRESSION_THRESHOLD, - V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME, - V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME, - V4L2_CID_PILOT_TONE_ENABLED, - V4L2_CID_PILOT_TONE_DEVIATION, - V4L2_CID_PILOT_TONE_FREQUENCY, - V4L2_CID_TUNE_PREEMPHASIS, - V4L2_CID_TUNE_POWER_LEVEL, - V4L2_CID_TUNE_ANTENNA_CAPACITOR, - 0 - }; - static const u32 *ctrl_classes[] = { - user_ctrls, - fmtx_ctrls, - NULL - }; - struct radio_si4713_device *rsdev; - - rsdev = video_get_drvdata(video_devdata(file)); - - qc->id = v4l2_ctrl_next(ctrl_classes, qc->id); - if (qc->id == 0) - return -EINVAL; - - if (qc->id == V4L2_CID_USER_CLASS || qc->id == V4L2_CID_FM_TX_CLASS) - return v4l2_ctrl_query_fill(qc, 0, 0, 0, 0); - - return v4l2_device_call_until_err(&rsdev->v4l2_dev, 0, core, - queryctrl, qc); -} - /* * v4l2 ioctl call backs. * we are just a wrapper for v4l2_sub_devs. @@ -164,83 +91,50 @@ static inline struct v4l2_device *get_v4l2_dev(struct file *file) return &((struct radio_si4713_device *)video_drvdata(file))->v4l2_dev; } -static int radio_si4713_g_ext_ctrls(struct file *file, void *p, - struct v4l2_ext_controls *vecs) -{ - return v4l2_device_call_until_err(get_v4l2_dev(file), 0, core, - g_ext_ctrls, vecs); -} - -static int radio_si4713_s_ext_ctrls(struct file *file, void *p, - struct v4l2_ext_controls *vecs) -{ - return v4l2_device_call_until_err(get_v4l2_dev(file), 0, core, - s_ext_ctrls, vecs); -} - -static int radio_si4713_g_ctrl(struct file *file, void *p, - struct v4l2_control *vc) -{ - return v4l2_device_call_until_err(get_v4l2_dev(file), 0, core, - g_ctrl, vc); -} - -static int radio_si4713_s_ctrl(struct file *file, void *p, - struct v4l2_control *vc) -{ - return v4l2_device_call_until_err(get_v4l2_dev(file), 0, core, - s_ctrl, vc); -} - static int radio_si4713_g_modulator(struct file *file, void *p, - struct v4l2_modulator *vm) + struct v4l2_modulator *vm) { return v4l2_device_call_until_err(get_v4l2_dev(file), 0, tuner, - g_modulator, vm); + g_modulator, vm); } static int radio_si4713_s_modulator(struct file *file, void *p, - const struct v4l2_modulator *vm) + const struct v4l2_modulator *vm) { return v4l2_device_call_until_err(get_v4l2_dev(file), 0, tuner, - s_modulator, vm); + s_modulator, vm); } static int radio_si4713_g_frequency(struct file *file, void *p, - struct v4l2_frequency *vf) + struct v4l2_frequency *vf) { return v4l2_device_call_until_err(get_v4l2_dev(file), 0, tuner, - g_frequency, vf); + g_frequency, vf); } static int radio_si4713_s_frequency(struct file *file, void *p, - struct v4l2_frequency *vf) + const struct v4l2_frequency *vf) { return v4l2_device_call_until_err(get_v4l2_dev(file), 0, tuner, - s_frequency, vf); + s_frequency, vf); } static long radio_si4713_default(struct file *file, void *p, - bool valid_prio, int cmd, void *arg) + bool valid_prio, unsigned int cmd, void *arg) { return v4l2_device_call_until_err(get_v4l2_dev(file), 0, core, - ioctl, cmd, arg); + ioctl, cmd, arg); } static struct v4l2_ioctl_ops radio_si4713_ioctl_ops = { - .vidioc_enumaudout = radio_si4713_enumaudout, - .vidioc_g_audout = radio_si4713_g_audout, - .vidioc_s_audout = radio_si4713_s_audout, .vidioc_querycap = radio_si4713_querycap, - .vidioc_queryctrl = radio_si4713_queryctrl, - .vidioc_g_ext_ctrls = radio_si4713_g_ext_ctrls, - .vidioc_s_ext_ctrls = radio_si4713_s_ext_ctrls, - .vidioc_g_ctrl = radio_si4713_g_ctrl, - .vidioc_s_ctrl = radio_si4713_s_ctrl, .vidioc_g_modulator = radio_si4713_g_modulator, .vidioc_s_modulator = radio_si4713_s_modulator, .vidioc_g_frequency = radio_si4713_g_frequency, .vidioc_s_frequency = radio_si4713_s_frequency, + .vidioc_log_status = v4l2_ctrl_log_status, + .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, + .vidioc_unsubscribe_event = v4l2_event_unsubscribe, .vidioc_default = radio_si4713_default, }; @@ -248,7 +142,7 @@ static struct v4l2_ioctl_ops radio_si4713_ioctl_ops = { static struct video_device radio_si4713_vdev_template = { .fops = &radio_si4713_fops, .name = "radio-si4713", - .release = video_device_release, + .release = video_device_release_empty, .ioctl_ops = &radio_si4713_ioctl_ops, .vfl_dir = VFL_DIR_TX, }; @@ -275,6 +169,7 @@ static int radio_si4713_pdriver_probe(struct platform_device *pdev) rval = -ENOMEM; goto exit; } + mutex_init(&rsdev->lock); rval = v4l2_device_register(&pdev->dev, &rsdev->v4l2_dev); if (rval) { @@ -285,40 +180,35 @@ static int radio_si4713_pdriver_probe(struct platform_device *pdev) adapter = i2c_get_adapter(pdata->i2c_bus); if (!adapter) { dev_err(&pdev->dev, "Cannot get i2c adapter %d\n", - pdata->i2c_bus); + pdata->i2c_bus); rval = -ENODEV; goto unregister_v4l2_dev; } sd = v4l2_i2c_new_subdev_board(&rsdev->v4l2_dev, adapter, - pdata->subdev_board_info, NULL); + pdata->subdev_board_info, NULL); if (!sd) { dev_err(&pdev->dev, "Cannot get v4l2 subdevice\n"); rval = -ENODEV; goto put_adapter; } - rsdev->radio_dev = video_device_alloc(); - if (!rsdev->radio_dev) { - dev_err(&pdev->dev, "Failed to alloc video device.\n"); - rval = -ENOMEM; - goto put_adapter; - } - - memcpy(rsdev->radio_dev, &radio_si4713_vdev_template, - sizeof(radio_si4713_vdev_template)); - video_set_drvdata(rsdev->radio_dev, rsdev); - if (video_register_device(rsdev->radio_dev, VFL_TYPE_RADIO, radio_nr)) { + rsdev->radio_dev = radio_si4713_vdev_template; + rsdev->radio_dev.v4l2_dev = &rsdev->v4l2_dev; + rsdev->radio_dev.ctrl_handler = sd->ctrl_handler; + set_bit(V4L2_FL_USE_FH_PRIO, &rsdev->radio_dev.flags); + /* Serialize all access to the si4713 */ + rsdev->radio_dev.lock = &rsdev->lock; + video_set_drvdata(&rsdev->radio_dev, rsdev); + if (video_register_device(&rsdev->radio_dev, VFL_TYPE_RADIO, radio_nr)) { dev_err(&pdev->dev, "Could not register video device.\n"); rval = -EIO; - goto free_vdev; + goto put_adapter; } dev_info(&pdev->dev, "New device successfully probed\n"); goto exit; -free_vdev: - video_device_release(rsdev->radio_dev); put_adapter: i2c_put_adapter(adapter); unregister_v4l2_dev: @@ -328,17 +218,16 @@ exit: } /* radio_si4713_pdriver_remove - remove the device */ -static int __exit radio_si4713_pdriver_remove(struct platform_device *pdev) +static int radio_si4713_pdriver_remove(struct platform_device *pdev) { struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev); - struct radio_si4713_device *rsdev = container_of(v4l2_dev, - struct radio_si4713_device, - v4l2_dev); struct v4l2_subdev *sd = list_entry(v4l2_dev->subdevs.next, struct v4l2_subdev, list); struct i2c_client *client = v4l2_get_subdevdata(sd); + struct radio_si4713_device *rsdev; - video_unregister_device(rsdev->radio_dev); + rsdev = container_of(v4l2_dev, struct radio_si4713_device, v4l2_dev); + video_unregister_device(&rsdev->radio_dev); i2c_put_adapter(client->adapter); v4l2_device_unregister(&rsdev->v4l2_dev); @@ -348,9 +237,10 @@ static int __exit radio_si4713_pdriver_remove(struct platform_device *pdev) static struct platform_driver radio_si4713_pdriver = { .driver = { .name = "radio-si4713", + .owner = THIS_MODULE, }, .probe = radio_si4713_pdriver_probe, - .remove = __exit_p(radio_si4713_pdriver_remove), + .remove = radio_si4713_pdriver_remove, }; module_platform_driver(radio_si4713_pdriver); diff --git a/drivers/media/radio/radio-si476x.c b/drivers/media/radio/radio-si476x.c new file mode 100644 index 00000000000..9430c6a2993 --- /dev/null +++ b/drivers/media/radio/radio-si476x.c @@ -0,0 +1,1599 @@ +/* + * drivers/media/radio/radio-si476x.c -- V4L2 driver for SI476X chips + * + * Copyright (C) 2012 Innovative Converged Devices(ICD) + * Copyright (C) 2013 Andrey Smirnov + * + * Author: Andrey Smirnov <andrew.smirnov@gmail.com> + * + * 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; version 2 of the License. + * + * 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. + * + */ + +#include <linux/module.h> +#include <linux/delay.h> +#include <linux/interrupt.h> +#include <linux/slab.h> +#include <linux/atomic.h> +#include <linux/videodev2.h> +#include <linux/mutex.h> +#include <linux/debugfs.h> +#include <media/v4l2-common.h> +#include <media/v4l2-ioctl.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-event.h> +#include <media/v4l2-device.h> + +#include <media/si476x.h> +#include <linux/mfd/si476x-core.h> + +#define FM_FREQ_RANGE_LOW 64000000 +#define FM_FREQ_RANGE_HIGH 108000000 + +#define AM_FREQ_RANGE_LOW 520000 +#define AM_FREQ_RANGE_HIGH 30000000 + +#define PWRLINEFLTR (1 << 8) + +#define FREQ_MUL (10000000 / 625) + +#define SI476X_PHDIV_STATUS_LINK_LOCKED(status) (0b10000000 & (status)) + +#define DRIVER_NAME "si476x-radio" +#define DRIVER_CARD "SI476x AM/FM Receiver" + +enum si476x_freq_bands { + SI476X_BAND_FM, + SI476X_BAND_AM, +}; + +static const struct v4l2_frequency_band si476x_bands[] = { + [SI476X_BAND_FM] = { + .type = V4L2_TUNER_RADIO, + .index = SI476X_BAND_FM, + .capability = V4L2_TUNER_CAP_LOW + | V4L2_TUNER_CAP_STEREO + | V4L2_TUNER_CAP_RDS + | V4L2_TUNER_CAP_RDS_BLOCK_IO + | V4L2_TUNER_CAP_FREQ_BANDS, + .rangelow = 64 * FREQ_MUL, + .rangehigh = 108 * FREQ_MUL, + .modulation = V4L2_BAND_MODULATION_FM, + }, + [SI476X_BAND_AM] = { + .type = V4L2_TUNER_RADIO, + .index = SI476X_BAND_AM, + .capability = V4L2_TUNER_CAP_LOW + | V4L2_TUNER_CAP_FREQ_BANDS, + .rangelow = 0.52 * FREQ_MUL, + .rangehigh = 30 * FREQ_MUL, + .modulation = V4L2_BAND_MODULATION_AM, + }, +}; + +static inline bool si476x_radio_freq_is_inside_of_the_band(u32 freq, int band) +{ + return freq >= si476x_bands[band].rangelow && + freq <= si476x_bands[band].rangehigh; +} + +static inline bool si476x_radio_range_is_inside_of_the_band(u32 low, u32 high, + int band) +{ + return low >= si476x_bands[band].rangelow && + high <= si476x_bands[band].rangehigh; +} + +static int si476x_radio_s_ctrl(struct v4l2_ctrl *ctrl); +static int si476x_radio_g_volatile_ctrl(struct v4l2_ctrl *ctrl); + +enum phase_diversity_modes_idx { + SI476X_IDX_PHDIV_DISABLED, + SI476X_IDX_PHDIV_PRIMARY_COMBINING, + SI476X_IDX_PHDIV_PRIMARY_ANTENNA, + SI476X_IDX_PHDIV_SECONDARY_ANTENNA, + SI476X_IDX_PHDIV_SECONDARY_COMBINING, +}; + +static const char * const phase_diversity_modes[] = { + [SI476X_IDX_PHDIV_DISABLED] = "Disabled", + [SI476X_IDX_PHDIV_PRIMARY_COMBINING] = "Primary with Secondary", + [SI476X_IDX_PHDIV_PRIMARY_ANTENNA] = "Primary Antenna", + [SI476X_IDX_PHDIV_SECONDARY_ANTENNA] = "Secondary Antenna", + [SI476X_IDX_PHDIV_SECONDARY_COMBINING] = "Secondary with Primary", +}; + +static inline enum phase_diversity_modes_idx +si476x_phase_diversity_mode_to_idx(enum si476x_phase_diversity_mode mode) +{ + switch (mode) { + default: /* FALLTHROUGH */ + case SI476X_PHDIV_DISABLED: + return SI476X_IDX_PHDIV_DISABLED; + case SI476X_PHDIV_PRIMARY_COMBINING: + return SI476X_IDX_PHDIV_PRIMARY_COMBINING; + case SI476X_PHDIV_PRIMARY_ANTENNA: + return SI476X_IDX_PHDIV_PRIMARY_ANTENNA; + case SI476X_PHDIV_SECONDARY_ANTENNA: + return SI476X_IDX_PHDIV_SECONDARY_ANTENNA; + case SI476X_PHDIV_SECONDARY_COMBINING: + return SI476X_IDX_PHDIV_SECONDARY_COMBINING; + } +} + +static inline enum si476x_phase_diversity_mode +si476x_phase_diversity_idx_to_mode(enum phase_diversity_m |