diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/media/radio/radio-aztech.c')
| -rw-r--r-- | ANDROID_3.4.5/drivers/media/radio/radio-aztech.c | 186 |
1 files changed, 0 insertions, 186 deletions
diff --git a/ANDROID_3.4.5/drivers/media/radio/radio-aztech.c b/ANDROID_3.4.5/drivers/media/radio/radio-aztech.c deleted file mode 100644 index 177bcbd7..00000000 --- a/ANDROID_3.4.5/drivers/media/radio/radio-aztech.c +++ /dev/null @@ -1,186 +0,0 @@ -/* - * radio-aztech.c - Aztech radio card driver - * - * Converted to the radio-isa framework by Hans Verkuil <hans.verkuil@xs4all.nl> - * Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org> - * Adapted to support the Video for Linux API by - * Russell Kroll <rkroll@exploits.org>. Based on original tuner code by: - * - * Quay Ly - * Donald Song - * Jason Lewis (jlewis@twilight.vtc.vsc.edu) - * Scott McGrath (smcgrath@twilight.vtc.vsc.edu) - * William McGrath (wmcgrath@twilight.vtc.vsc.edu) - * - * Fully tested with the Keene USB FM Transmitter and the v4l2-compliance tool. -*/ - -#include <linux/module.h> /* Modules */ -#include <linux/init.h> /* Initdata */ -#include <linux/ioport.h> /* request_region */ -#include <linux/delay.h> /* udelay */ -#include <linux/videodev2.h> /* kernel radio structs */ -#include <linux/io.h> /* outb, outb_p */ -#include <linux/slab.h> -#include <media/v4l2-device.h> -#include <media/v4l2-ioctl.h> -#include <media/v4l2-ctrls.h> -#include "radio-isa.h" - -MODULE_AUTHOR("Russell Kroll, Quay Lu, Donald Song, Jason Lewis, Scott McGrath, William McGrath"); -MODULE_DESCRIPTION("A driver for the Aztech radio card."); -MODULE_LICENSE("GPL"); -MODULE_VERSION("1.0.0"); - -/* acceptable ports: 0x350 (JP3 shorted), 0x358 (JP3 open) */ -#ifndef CONFIG_RADIO_AZTECH_PORT -#define CONFIG_RADIO_AZTECH_PORT -1 -#endif - -#define AZTECH_MAX 2 - -static int io[AZTECH_MAX] = { [0] = CONFIG_RADIO_AZTECH_PORT, - [1 ... (AZTECH_MAX - 1)] = -1 }; -static int radio_nr[AZTECH_MAX] = { [0 ... (AZTECH_MAX - 1)] = -1 }; -static const int radio_wait_time = 1000; - -module_param_array(io, int, NULL, 0444); -MODULE_PARM_DESC(io, "I/O addresses of the Aztech card (0x350 or 0x358)"); -module_param_array(radio_nr, int, NULL, 0444); -MODULE_PARM_DESC(radio_nr, "Radio device numbers"); - -struct aztech { - struct radio_isa_card isa; - int curvol; -}; - -static void send_0_byte(struct aztech *az) -{ - udelay(radio_wait_time); - outb_p(2 + az->curvol, az->isa.io); - outb_p(64 + 2 + az->curvol, az->isa.io); -} - -static void send_1_byte(struct aztech *az) -{ - udelay(radio_wait_time); - outb_p(128 + 2 + az->curvol, az->isa.io); - outb_p(128 + 64 + 2 + az->curvol, az->isa.io); -} - -static struct radio_isa_card *aztech_alloc(void) -{ - struct aztech *az = kzalloc(sizeof(*az), GFP_KERNEL); - - return az ? &az->isa : NULL; -} - -static int aztech_s_frequency(struct radio_isa_card *isa, u32 freq) -{ - struct aztech *az = container_of(isa, struct aztech, isa); - int i; - - freq += 171200; /* Add 10.7 MHz IF */ - freq /= 800; /* Convert to 50 kHz units */ - - send_0_byte(az); /* 0: LSB of frequency */ - - for (i = 0; i < 13; i++) /* : frequency bits (1-13) */ - if (freq & (1 << i)) - send_1_byte(az); - else - send_0_byte(az); - - send_0_byte(az); /* 14: test bit - always 0 */ - send_0_byte(az); /* 15: test bit - always 0 */ - send_0_byte(az); /* 16: band data 0 - always 0 */ - if (isa->stereo) /* 17: stereo (1 to enable) */ - send_1_byte(az); - else - send_0_byte(az); - - send_1_byte(az); /* 18: band data 1 - unknown */ - send_0_byte(az); /* 19: time base - always 0 */ - send_0_byte(az); /* 20: spacing (0 = 25 kHz) */ - send_1_byte(az); /* 21: spacing (1 = 25 kHz) */ - send_0_byte(az); /* 22: spacing (0 = 25 kHz) */ - send_1_byte(az); /* 23: AM/FM (FM = 1, always) */ - - /* latch frequency */ - - udelay(radio_wait_time); - outb_p(128 + 64 + az->curvol, az->isa.io); - - return 0; -} - -/* thanks to Michael Dwyer for giving me a dose of clues in - * the signal strength department.. - * - * This card has a stereo bit - bit 0 set = mono, not set = stereo - */ -static u32 aztech_g_rxsubchans(struct radio_isa_card *isa) -{ - if (inb(isa->io) & 1) - return V4L2_TUNER_SUB_MONO; - return V4L2_TUNER_SUB_STEREO; -} - -static int aztech_s_stereo(struct radio_isa_card *isa, bool stereo) -{ - return aztech_s_frequency(isa, isa->freq); -} - -static int aztech_s_mute_volume(struct radio_isa_card *isa, bool mute, int vol) -{ - struct aztech *az = container_of(isa, struct aztech, isa); - - if (mute) - vol = 0; - az->curvol = (vol & 1) + ((vol & 2) << 1); - outb(az->curvol, isa->io); - return 0; -} - -static const struct radio_isa_ops aztech_ops = { - .alloc = aztech_alloc, - .s_mute_volume = aztech_s_mute_volume, - .s_frequency = aztech_s_frequency, - .s_stereo = aztech_s_stereo, - .g_rxsubchans = aztech_g_rxsubchans, -}; - -static const int aztech_ioports[] = { 0x350, 0x358 }; - -static struct radio_isa_driver aztech_driver = { - .driver = { - .match = radio_isa_match, - .probe = radio_isa_probe, - .remove = radio_isa_remove, - .driver = { - .name = "radio-aztech", - }, - }, - .io_params = io, - .radio_nr_params = radio_nr, - .io_ports = aztech_ioports, - .num_of_io_ports = ARRAY_SIZE(aztech_ioports), - .region_size = 2, - .card = "Aztech Radio", - .ops = &aztech_ops, - .has_stereo = true, - .max_volume = 3, -}; - -static int __init aztech_init(void) -{ - return isa_register_driver(&aztech_driver.driver, AZTECH_MAX); -} - -static void __exit aztech_exit(void) -{ - isa_unregister_driver(&aztech_driver.driver); -} - -module_init(aztech_init); -module_exit(aztech_exit); |