diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/media/radio/radio-terratec.c')
| -rw-r--r-- | ANDROID_3.4.5/drivers/media/radio/radio-terratec.c | 170 |
1 files changed, 0 insertions, 170 deletions
diff --git a/ANDROID_3.4.5/drivers/media/radio/radio-terratec.c b/ANDROID_3.4.5/drivers/media/radio/radio-terratec.c deleted file mode 100644 index be10a802..00000000 --- a/ANDROID_3.4.5/drivers/media/radio/radio-terratec.c +++ /dev/null @@ -1,170 +0,0 @@ -/* Terratec ActiveRadio ISA Standalone card driver for Linux radio support - * (c) 1999 R. Offermanns (rolf@offermanns.de) - * based on the aimslab radio driver from M. Kirkwood - * many thanks to Michael Becker and Friedhelm Birth (from TerraTec) - * - * - * History: - * 1999-05-21 First preview release - * - * Notes on the hardware: - * There are two "main" chips on the card: - * - Philips OM5610 (http://www-us.semiconductors.philips.com/acrobat/datasheets/OM5610_2.pdf) - * - Philips SAA6588 (http://www-us.semiconductors.philips.com/acrobat/datasheets/SAA6588_1.pdf) - * (you can get the datasheet at the above links) - * - * Frequency control is done digitally -- ie out(port,encodefreq(95.8)); - * Volume Control is done digitally - * - * Converted to the radio-isa framework by Hans Verkuil <hans.verkuil@cisco.com> - * Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org> - */ - -#include <linux/module.h> /* Modules */ -#include <linux/init.h> /* Initdata */ -#include <linux/ioport.h> /* request_region */ -#include <linux/videodev2.h> /* kernel radio structs */ -#include <linux/mutex.h> -#include <linux/io.h> /* outb, outb_p */ -#include <linux/slab.h> -#include <media/v4l2-device.h> -#include <media/v4l2-ioctl.h> -#include "radio-isa.h" - -MODULE_AUTHOR("R. Offermans & others"); -MODULE_DESCRIPTION("A driver for the TerraTec ActiveRadio Standalone radio card."); -MODULE_LICENSE("GPL"); -MODULE_VERSION("0.1.99"); - -/* Note: there seems to be only one possible port (0x590), but without - hardware this is hard to verify. For now, this is the only one we will - support. */ -static int io = 0x590; -static int radio_nr = -1; - -module_param(radio_nr, int, 0444); -MODULE_PARM_DESC(radio_nr, "Radio device number"); - -#define WRT_DIS 0x00 -#define CLK_OFF 0x00 -#define IIC_DATA 0x01 -#define IIC_CLK 0x02 -#define DATA 0x04 -#define CLK_ON 0x08 -#define WRT_EN 0x10 - -static struct radio_isa_card *terratec_alloc(void) -{ - return kzalloc(sizeof(struct radio_isa_card), GFP_KERNEL); -} - -static int terratec_s_mute_volume(struct radio_isa_card *isa, bool mute, int vol) -{ - int i; - - if (mute) - vol = 0; - vol = vol + (vol * 32); /* change both channels */ - for (i = 0; i < 8; i++) { - if (vol & (0x80 >> i)) - outb(0x80, isa->io + 1); - else - outb(0x00, isa->io + 1); - } - return 0; -} - - -/* this is the worst part in this driver */ -/* many more or less strange things are going on here, but hey, it works :) */ - -static int terratec_s_frequency(struct radio_isa_card *isa, u32 freq) -{ - int i; - int p; - int temp; - long rest; - unsigned char buffer[25]; /* we have to bit shift 25 registers */ - - freq = freq / 160; /* convert the freq. to a nice to handle value */ - memset(buffer, 0, sizeof(buffer)); - - rest = freq * 10 + 10700; /* I once had understood what is going on here */ - /* maybe some wise guy (friedhelm?) can comment this stuff */ - i = 13; - p = 10; - temp = 102400; - while (rest != 0) { - if (rest % temp == rest) - buffer[i] = 0; - else { - buffer[i] = 1; - rest = rest - temp; - } - i--; - p--; - temp = temp / 2; - } - - for (i = 24; i > -1; i--) { /* bit shift the values to the radiocard */ - if (buffer[i] == 1) { - outb(WRT_EN | DATA, isa->io); - outb(WRT_EN | DATA | CLK_ON, isa->io); - outb(WRT_EN | DATA, isa->io); - } else { - outb(WRT_EN | 0x00, isa->io); - outb(WRT_EN | 0x00 | CLK_ON, isa->io); - } - } - outb(0x00, isa->io); - return 0; -} - -static u32 terratec_g_signal(struct radio_isa_card *isa) -{ - /* bit set = no signal present */ - return (inb(isa->io) & 2) ? 0 : 0xffff; -} - -static const struct radio_isa_ops terratec_ops = { - .alloc = terratec_alloc, - .s_mute_volume = terratec_s_mute_volume, - .s_frequency = terratec_s_frequency, - .g_signal = terratec_g_signal, -}; - -static const int terratec_ioports[] = { 0x590 }; - -static struct radio_isa_driver terratec_driver = { - .driver = { - .match = radio_isa_match, - .probe = radio_isa_probe, - .remove = radio_isa_remove, - .driver = { - .name = "radio-terratec", - }, - }, - .io_params = &io, - .radio_nr_params = &radio_nr, - .io_ports = terratec_ioports, - .num_of_io_ports = ARRAY_SIZE(terratec_ioports), - .region_size = 2, - .card = "TerraTec ActiveRadio", - .ops = &terratec_ops, - .has_stereo = true, - .max_volume = 10, -}; - -static int __init terratec_init(void) -{ - return isa_register_driver(&terratec_driver.driver, 1); -} - -static void __exit terratec_exit(void) -{ - isa_unregister_driver(&terratec_driver.driver); -} - -module_init(terratec_init); -module_exit(terratec_exit); - |