* - hardware frequency seek support
* - afc indication
* - more safety checks, let si470x_get_freq return errno
+ * - vidioc behavior corrected according to v4l2 spec
*
* ToDo:
* - add firmware download/update support
/* USB Device ID List */
static struct usb_device_id si470x_usb_driver_id_table[] = {
/* Silicon Labs USB FM Radio Reference Design */
- { USB_DEVICE_AND_INTERFACE_INFO(0x10c4, 0x818a, USB_CLASS_HID, 0, 0) },
+ { USB_DEVICE_AND_INTERFACE_INFO(0x10c4, 0x818a, USB_CLASS_HID, 0, 0) },
/* ADS/Tech FM Radio Receiver (formerly Instant FM Music) */
- { USB_DEVICE_AND_INTERFACE_INFO(0x06e1, 0xa155, USB_CLASS_HID, 0, 0) },
+ { USB_DEVICE_AND_INTERFACE_INFO(0x06e1, 0xa155, USB_CLASS_HID, 0, 0) },
/* Terminating entry */
{ }
};
/* Radio Nr */
static int radio_nr = -1;
-module_param(radio_nr, int, 0);
+module_param(radio_nr, int, 0444);
MODULE_PARM_DESC(radio_nr, "Radio Nr");
/* Spacing (kHz) */
/* 1: 100 kHz (Europe, Japan) */
/* 2: 50 kHz */
static unsigned short space = 2;
-module_param(space, ushort, 0);
-MODULE_PARM_DESC(radio_nr, "Spacing: 0=200kHz 1=100kHz *2=50kHz*");
+module_param(space, ushort, 0444);
+MODULE_PARM_DESC(space, "Spacing: 0=200kHz 1=100kHz *2=50kHz*");
/* Bottom of Band (MHz) */
/* 0: 87.5 - 108 MHz (USA, Europe)*/
/* 1: 76 - 108 MHz (Japan wide band) */
/* 2: 76 - 90 MHz (Japan) */
static unsigned short band = 1;
-module_param(band, ushort, 0);
-MODULE_PARM_DESC(radio_nr, "Band: 0=87.5..108MHz *1=76..108MHz* 2=76..90MHz");
+module_param(band, ushort, 0444);
+MODULE_PARM_DESC(band, "Band: 0=87.5..108MHz *1=76..108MHz* 2=76..90MHz");
/* De-emphasis */
/* 0: 75 us (USA) */
/* 1: 50 us (Europe, Australia, Japan) */
static unsigned short de = 1;
-module_param(de, ushort, 0);
-MODULE_PARM_DESC(radio_nr, "De-emphasis: 0=75us *1=50us*");
+module_param(de, ushort, 0444);
+MODULE_PARM_DESC(de, "De-emphasis: 0=75us *1=50us*");
/* USB timeout */
static unsigned int usb_timeout = 500;
-module_param(usb_timeout, uint, 0);
+module_param(usb_timeout, uint, 0644);
MODULE_PARM_DESC(usb_timeout, "USB timeout (ms): *500*");
/* Tune timeout */
static unsigned int tune_timeout = 3000;
-module_param(tune_timeout, uint, 0);
+module_param(tune_timeout, uint, 0644);
MODULE_PARM_DESC(tune_timeout, "Tune timeout: *3000*");
/* Seek timeout */
static unsigned int seek_timeout = 5000;
-module_param(seek_timeout, uint, 0);
+module_param(seek_timeout, uint, 0644);
MODULE_PARM_DESC(seek_timeout, "Seek timeout: *5000*");
/* RDS buffer blocks */
static unsigned int rds_buf = 100;
-module_param(rds_buf, uint, 0);
+module_param(rds_buf, uint, 0444);
MODULE_PARM_DESC(rds_buf, "RDS buffer entries: *100*");
/* RDS maximum block errors */
/* 1 means 1-2 errors requiring correction (used by original USBRadio.exe) */
/* 2 means 3-5 errors requiring correction */
/* 3 means 6+ errors or errors in checkword, correction not possible */
-module_param(max_rds_errors, ushort, 0);
+module_param(max_rds_errors, ushort, 0644);
MODULE_PARM_DESC(max_rds_errors, "RDS maximum block errors: *1*");
/* RDS poll frequency */
/* 50 is used by radio-cadet */
/* 75 should be okay */
/* 80 is the usual RDS receive interval */
-module_param(rds_poll_time, uint, 0);
+module_param(rds_poll_time, uint, 0644);
MODULE_PARM_DESC(rds_poll_time, "RDS poll time (ms): *40*");
int retval;
/* Spacing (kHz) */
- switch (space) {
+ switch ((radio->registers[SYSCONFIG2] & SYSCONFIG2_SPACE) >> 4) {
/* 0: 200 kHz (USA, Australia) */
- case 0 : spacing = 0.200 * FREQ_MUL; break;
+ case 0:
+ spacing = 0.200 * FREQ_MUL; break;
/* 1: 100 kHz (Europe, Japan) */
- case 1 : spacing = 0.100 * FREQ_MUL; break;
+ case 1:
+ spacing = 0.100 * FREQ_MUL; break;
/* 2: 50 kHz */
- default: spacing = 0.050 * FREQ_MUL; break;
+ default:
+ spacing = 0.050 * FREQ_MUL; break;
};
/* Bottom of Band (MHz) */
- switch (band) {
+ switch ((radio->registers[SYSCONFIG2] & SYSCONFIG2_BAND) >> 6) {
/* 0: 87.5 - 108 MHz (USA, Europe) */
- case 0 : band_bottom = 87.5 * FREQ_MUL; break;
+ case 0:
+ band_bottom = 87.5 * FREQ_MUL; break;
/* 1: 76 - 108 MHz (Japan wide band) */
- default: band_bottom = 76 * FREQ_MUL; break;
+ default:
+ band_bottom = 76 * FREQ_MUL; break;
/* 2: 76 - 90 MHz (Japan) */
- case 2 : band_bottom = 76 * FREQ_MUL; break;
+ case 2:
+ band_bottom = 76 * FREQ_MUL; break;
};
/* read channel */
unsigned short chan;
/* Spacing (kHz) */
- switch (space) {
+ switch ((radio->registers[SYSCONFIG2] & SYSCONFIG2_SPACE) >> 4) {
/* 0: 200 kHz (USA, Australia) */
- case 0 : spacing = 0.200 * FREQ_MUL; break;
+ case 0:
+ spacing = 0.200 * FREQ_MUL; break;
/* 1: 100 kHz (Europe, Japan) */
- case 1 : spacing = 0.100 * FREQ_MUL; break;
+ case 1:
+ spacing = 0.100 * FREQ_MUL; break;
/* 2: 50 kHz */
- default: spacing = 0.050 * FREQ_MUL; break;
+ default:
+ spacing = 0.050 * FREQ_MUL; break;
};
/* Bottom of Band (MHz) */
- switch (band) {
+ switch ((radio->registers[SYSCONFIG2] & SYSCONFIG2_BAND) >> 6) {
/* 0: 87.5 - 108 MHz (USA, Europe) */
- case 0 : band_bottom = 87.5 * FREQ_MUL; break;
+ case 0:
+ band_bottom = 87.5 * FREQ_MUL; break;
/* 1: 76 - 108 MHz (Japan wide band) */
- default: band_bottom = 76 * FREQ_MUL; break;
+ default:
+ band_bottom = 76 * FREQ_MUL; break;
/* 2: 76 - 90 MHz (Japan) */
- case 2 : band_bottom = 76 * FREQ_MUL; break;
+ case 2:
+ band_bottom = 76 * FREQ_MUL; break;
};
/* Chan = [ Freq (Mhz) - Bottom of Band (MHz) ] / Spacing (kHz) */
* si470x_v4l2_queryctrl - query control
*/
static struct v4l2_queryctrl si470x_v4l2_queryctrl[] = {
-/* HINT: the disabled controls are only here to satify kradio and such apps */
{
.id = V4L2_CID_AUDIO_VOLUME,
.type = V4L2_CTRL_TYPE_INTEGER,
.step = 1,
.default_value = 15,
},
- {
- .id = V4L2_CID_AUDIO_BALANCE,
- .flags = V4L2_CTRL_FLAG_DISABLED,
- },
- {
- .id = V4L2_CID_AUDIO_BASS,
- .flags = V4L2_CTRL_FLAG_DISABLED,
- },
- {
- .id = V4L2_CID_AUDIO_TREBLE,
- .flags = V4L2_CTRL_FLAG_DISABLED,
- },
{
.id = V4L2_CID_AUDIO_MUTE,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.step = 1,
.default_value = 1,
},
- {
- .id = V4L2_CID_AUDIO_LOUDNESS,
- .flags = V4L2_CTRL_FLAG_DISABLED,
- },
};
}
-/*
- * si470x_vidioc_g_input - get input
- */
-static int si470x_vidioc_g_input(struct file *file, void *priv,
- unsigned int *i)
-{
- *i = 0;
-
- return 0;
-}
-
-
-/*
- * si470x_vidioc_s_input - set input
- */
-static int si470x_vidioc_s_input(struct file *file, void *priv, unsigned int i)
-{
- int retval = 0;
-
- /* safety checks */
- if (i != 0)
- retval = -EINVAL;
-
- if (retval < 0)
- printk(KERN_WARNING DRIVER_NAME
- ": set input failed with %d\n", retval);
- return retval;
-}
-
-
/*
* si470x_vidioc_queryctrl - enumerate control items
*/
static int si470x_vidioc_queryctrl(struct file *file, void *priv,
struct v4l2_queryctrl *qc)
{
- unsigned char i;
+ unsigned char i = 0;
int retval = -EINVAL;
- /* safety checks */
- if (!qc->id)
+ /* abort if qc->id is below V4L2_CID_BASE */
+ if (qc->id < V4L2_CID_BASE)
goto done;
+ /* search video control */
for (i = 0; i < ARRAY_SIZE(si470x_v4l2_queryctrl); i++) {
if (qc->id == si470x_v4l2_queryctrl[i].id) {
memcpy(qc, &(si470x_v4l2_queryctrl[i]), sizeof(*qc));
- retval = 0;
+ retval = 0; /* found */
break;
}
}
+ /* disable unsupported base controls */
+ /* to satisfy kradio and such apps */
+ if ((retval == -EINVAL) && (qc->id < V4L2_CID_LASTP1)) {
+ qc->flags = V4L2_CTRL_FLAG_DISABLED;
+ retval = 0;
+ }
+
done:
if (retval < 0)
printk(KERN_WARNING DRIVER_NAME
static int si470x_vidioc_g_audio(struct file *file, void *priv,
struct v4l2_audio *audio)
{
- int retval = 0;
-
- /* safety checks */
- if (audio->index != 0) {
- retval = -EINVAL;
- goto done;
- }
-
+ /* driver constants */
+ audio->index = 0;
strcpy(audio->name, "Radio");
audio->capability = V4L2_AUDCAP_STEREO;
+ audio->mode = 0;
-done:
- if (retval < 0)
- printk(KERN_WARNING DRIVER_NAME
- ": get audio failed with %d\n", retval);
- return retval;
-}
-
-
-/*
- * si470x_vidioc_s_audio - set audio attributes
- */
-static int si470x_vidioc_s_audio(struct file *file, void *priv,
- struct v4l2_audio *audio)
-{
- int retval = 0;
-
- /* safety checks */
- if (audio->index != 0) {
- retval = -EINVAL;
- goto done;
- }
-
-done:
- if (retval < 0)
- printk(KERN_WARNING DRIVER_NAME
- ": set audio failed with %d\n", retval);
- return retval;
+ return 0;
}
retval = -EIO;
goto done;
}
- if ((tuner->index != 0) && (tuner->type != V4L2_TUNER_RADIO)) {
+ if (tuner->index != 0) {
retval = -EINVAL;
goto done;
}
if (retval < 0)
goto done;
+ /* driver constants */
strcpy(tuner->name, "FM");
- switch (band) {
+ tuner->type = V4L2_TUNER_RADIO;
+ tuner->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO;
+
+ /* range limits */
+ switch ((radio->registers[SYSCONFIG2] & SYSCONFIG2_BAND) >> 6) {
/* 0: 87.5 - 108 MHz (USA, Europe, default) */
default:
tuner->rangelow = 87.5 * FREQ_MUL;
tuner->rangehigh = 90 * FREQ_MUL;
break;
};
- tuner->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
- tuner->capability = V4L2_TUNER_CAP_LOW;
- /* Stereo indicator == Stereo (instead of Mono) */
+ /* stereo indicator == stereo (instead of mono) */
if ((radio->registers[STATUSRSSI] & STATUSRSSI_ST) == 1)
- tuner->audmode = V4L2_TUNER_MODE_STEREO;
+ tuner->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
else
+ tuner->rxsubchans = V4L2_TUNER_SUB_MONO;
+
+ /* mono/stereo selector */
+ if ((radio->registers[POWERCFG] & POWERCFG_MONO) == 1)
tuner->audmode = V4L2_TUNER_MODE_MONO;
+ else
+ tuner->audmode = V4L2_TUNER_MODE_STEREO;
/* min is worst, max is best; signal:0..0xffff; rssi: 0..0xff */
tuner->signal = (radio->registers[STATUSRSSI] & STATUSRSSI_RSSI)
struct v4l2_tuner *tuner)
{
struct si470x_device *radio = video_drvdata(file);
- int retval = 0;
+ int retval = -EINVAL;
/* safety checks */
if (radio->disconnected) {
retval = -EIO;
goto done;
}
- if ((tuner->index != 0) && (tuner->type != V4L2_TUNER_RADIO)) {
- retval = -EINVAL;
+ if (tuner->index != 0)
goto done;
- }
- if (tuner->audmode == V4L2_TUNER_MODE_MONO)
+ /* mono/stereo selector */
+ switch (tuner->audmode) {
+ case V4L2_TUNER_MODE_MONO:
radio->registers[POWERCFG] |= POWERCFG_MONO; /* force mono */
- else
+ break;
+ case V4L2_TUNER_MODE_STEREO:
radio->registers[POWERCFG] &= ~POWERCFG_MONO; /* try stereo */
+ break;
+ default:
+ goto done;
+ }
retval = si470x_set_register(radio, POWERCFG);
retval = -EIO;
goto done;
}
- if ((freq->tuner != 0) && (freq->type != V4L2_TUNER_RADIO)) {
+ if (freq->tuner != 0) {
retval = -EINVAL;
goto done;
}
+ freq->type = V4L2_TUNER_RADIO;
retval = si470x_get_freq(radio, &freq->frequency);
done:
retval = -EIO;
goto done;
}
- if ((freq->tuner != 0) && (freq->type != V4L2_TUNER_RADIO)) {
+ if (freq->tuner != 0) {
retval = -EINVAL;
goto done;
}
retval = -EIO;
goto done;
}
- if ((seek->tuner != 0) && (seek->type != V4L2_TUNER_RADIO)) {
+ if (seek->tuner != 0) {
retval = -EINVAL;
goto done;
}
return retval;
}
+
+/*
+ * si470x_ioctl_ops - video device ioctl operations
+ */
static const struct v4l2_ioctl_ops si470x_ioctl_ops = {
.vidioc_querycap = si470x_vidioc_querycap,
- .vidioc_g_input = si470x_vidioc_g_input,
- .vidioc_s_input = si470x_vidioc_s_input,
.vidioc_queryctrl = si470x_vidioc_queryctrl,
.vidioc_g_ctrl = si470x_vidioc_g_ctrl,
.vidioc_s_ctrl = si470x_vidioc_s_ctrl,
.vidioc_g_audio = si470x_vidioc_g_audio,
- .vidioc_s_audio = si470x_vidioc_s_audio,
.vidioc_g_tuner = si470x_vidioc_g_tuner,
.vidioc_s_tuner = si470x_vidioc_s_tuner,
.vidioc_g_frequency = si470x_vidioc_g_frequency,
.vidioc_s_hw_freq_seek = si470x_vidioc_s_hw_freq_seek,
};
+
/*
- * si470x_viddev_tamples - video device interface
+ * si470x_viddev_template - video device interface
*/
static struct video_device si470x_viddev_template = {
.fops = &si470x_fops,
- .ioctl_ops = &si470x_ioctl_ops,
.name = DRIVER_NAME,
.release = video_device_release,
+ .ioctl_ops = &si470x_ioctl_ops,
};
projects / linux-2.6-omap-h63xx.git / blobdiff