diff options
Diffstat (limited to 'drivers/media/radio/radio-si470x.c')
| -rw-r--r-- | drivers/media/radio/radio-si470x.c | 122 |
1 files changed, 67 insertions, 55 deletions
diff --git a/drivers/media/radio/radio-si470x.c b/drivers/media/radio/radio-si470x.c index 8743a521e4af..dfaaa467c043 100644 --- a/drivers/media/radio/radio-si470x.c +++ b/drivers/media/radio/radio-si470x.c @@ -481,7 +481,7 @@ struct si470x_device { /************************************************************************** - * General Driver Functions + * General Driver Functions - REGISTER_REPORTs **************************************************************************/ /* @@ -567,60 +567,6 @@ static int si470x_set_register(struct si470x_device *radio, int regnr) /* - * si470x_get_all_registers - read entire registers - */ -static int si470x_get_all_registers(struct si470x_device *radio) -{ - unsigned char buf[ENTIRE_REPORT_SIZE]; - int retval; - unsigned char regnr; - - buf[0] = ENTIRE_REPORT; - - retval = si470x_get_report(radio, (void *) &buf, sizeof(buf)); - - if (retval >= 0) - for (regnr = 0; regnr < RADIO_REGISTER_NUM; regnr++) - radio->registers[regnr] = get_unaligned_be16( - &buf[regnr * RADIO_REGISTER_SIZE + 1]); - - return (retval < 0) ? -EINVAL : 0; -} - - -/* - * si470x_get_rds_registers - read rds registers - */ -static int si470x_get_rds_registers(struct si470x_device *radio) -{ - unsigned char buf[RDS_REPORT_SIZE]; - int retval; - int size; - unsigned char regnr; - - buf[0] = RDS_REPORT; - - retval = usb_interrupt_msg(radio->usbdev, - usb_rcvintpipe(radio->usbdev, 1), - (void *) &buf, sizeof(buf), &size, usb_timeout); - if (size != sizeof(buf)) - printk(KERN_WARNING DRIVER_NAME ": si470x_get_rds_registers: " - "return size differs: %d != %zu\n", size, sizeof(buf)); - if (retval < 0) - printk(KERN_WARNING DRIVER_NAME ": si470x_get_rds_registers: " - "usb_interrupt_msg returned %d\n", retval); - - if (retval >= 0) - for (regnr = 0; regnr < RDS_REGISTER_NUM; regnr++) - radio->registers[STATUSRSSI + regnr] = - get_unaligned_be16( - &buf[regnr * RADIO_REGISTER_SIZE + 1]); - - return (retval < 0) ? -EINVAL : 0; -} - - -/* * si470x_set_chan - set the channel */ static int si470x_set_chan(struct si470x_device *radio, unsigned short chan) @@ -912,6 +858,70 @@ static int si470x_set_led_state(struct si470x_device *radio, /************************************************************************** + * General Driver Functions - ENTIRE_REPORT + **************************************************************************/ + +/* + * si470x_get_all_registers - read entire registers + */ +static int si470x_get_all_registers(struct si470x_device *radio) +{ + unsigned char buf[ENTIRE_REPORT_SIZE]; + int retval; + unsigned char regnr; + + buf[0] = ENTIRE_REPORT; + + retval = si470x_get_report(radio, (void *) &buf, sizeof(buf)); + + if (retval >= 0) + for (regnr = 0; regnr < RADIO_REGISTER_NUM; regnr++) + radio->registers[regnr] = get_unaligned_be16( + &buf[regnr * RADIO_REGISTER_SIZE + 1]); + + return (retval < 0) ? -EINVAL : 0; +} + + + +/************************************************************************** + * General Driver Functions - RDS_REPORT + **************************************************************************/ + +/* + * si470x_get_rds_registers - read rds registers + */ +static int si470x_get_rds_registers(struct si470x_device *radio) +{ + unsigned char buf[RDS_REPORT_SIZE]; + int retval; + int size; + unsigned char regnr; + + buf[0] = RDS_REPORT; + + retval = usb_interrupt_msg(radio->usbdev, + usb_rcvintpipe(radio->usbdev, 1), + (void *) &buf, sizeof(buf), &size, usb_timeout); + if (size != sizeof(buf)) + printk(KERN_WARNING DRIVER_NAME ": si470x_get_rds_registers: " + "return size differs: %d != %zu\n", size, sizeof(buf)); + if (retval < 0) + printk(KERN_WARNING DRIVER_NAME ": si470x_get_rds_registers: " + "usb_interrupt_msg returned %d\n", retval); + + if (retval >= 0) + for (regnr = 0; regnr < RDS_REGISTER_NUM; regnr++) + radio->registers[STATUSRSSI + regnr] = + get_unaligned_be16( + &buf[regnr * RADIO_REGISTER_SIZE + 1]); + + return (retval < 0) ? -EINVAL : 0; +} + + + +/************************************************************************** * RDS Driver Functions **************************************************************************/ @@ -1125,6 +1135,7 @@ static int si470x_fops_open(struct file *file) } if (radio->users == 1) { + /* start radio */ retval = si470x_start(radio); if (retval < 0) usb_autopm_put_interface(radio->intf); @@ -1166,6 +1177,7 @@ static int si470x_fops_release(struct file *file) /* cancel read processes */ wake_up_interruptible(&radio->read_queue); + /* stop radio */ retval = si470x_stop(radio); usb_autopm_put_interface(radio->intf); } |