diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/media/radio/radio-trust.c')
-rw-r--r-- | ANDROID_3.4.5/drivers/media/radio/radio-trust.c | 243 |
1 files changed, 0 insertions, 243 deletions
diff --git a/ANDROID_3.4.5/drivers/media/radio/radio-trust.c b/ANDROID_3.4.5/drivers/media/radio/radio-trust.c deleted file mode 100644 index 26a8c600..00000000 --- a/ANDROID_3.4.5/drivers/media/radio/radio-trust.c +++ /dev/null @@ -1,243 +0,0 @@ -/* radio-trust.c - Trust FM Radio card driver for Linux 2.2 - * by Eric Lammerts <eric@scintilla.utwente.nl> - * - * Based on radio-aztech.c. Original notes: - * - * 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) - * - * Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org> - */ - -#include <stdarg.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/ioport.h> -#include <linux/videodev2.h> -#include <linux/io.h> -#include <linux/slab.h> -#include <media/v4l2-device.h> -#include <media/v4l2-ioctl.h> -#include "radio-isa.h" - -MODULE_AUTHOR("Eric Lammerts, Russell Kroll, Quay Lu, Donald Song, Jason Lewis, Scott McGrath, William McGrath"); -MODULE_DESCRIPTION("A driver for the Trust FM Radio card."); -MODULE_LICENSE("GPL"); -MODULE_VERSION("0.1.99"); - -/* acceptable ports: 0x350 (JP3 shorted), 0x358 (JP3 open) */ - -#ifndef CONFIG_RADIO_TRUST_PORT -#define CONFIG_RADIO_TRUST_PORT -1 -#endif - -#define TRUST_MAX 2 - -static int io[TRUST_MAX] = { [0] = CONFIG_RADIO_TRUST_PORT, - [1 ... (TRUST_MAX - 1)] = -1 }; -static int radio_nr[TRUST_MAX] = { [0 ... (TRUST_MAX - 1)] = -1 }; - -module_param_array(io, int, NULL, 0444); -MODULE_PARM_DESC(io, "I/O addresses of the Trust FM Radio card (0x350 or 0x358)"); -module_param_array(radio_nr, int, NULL, 0444); -MODULE_PARM_DESC(radio_nr, "Radio device numbers"); - -struct trust { - struct radio_isa_card isa; - int ioval; -}; - -static struct radio_isa_card *trust_alloc(void) -{ - struct trust *tr = kzalloc(sizeof(*tr), GFP_KERNEL); - - return tr ? &tr->isa : NULL; -} - -/* i2c addresses */ -#define TDA7318_ADDR 0x88 -#define TSA6060T_ADDR 0xc4 - -#define TR_DELAY do { inb(tr->isa.io); inb(tr->isa.io); inb(tr->isa.io); } while (0) -#define TR_SET_SCL outb(tr->ioval |= 2, tr->isa.io) -#define TR_CLR_SCL outb(tr->ioval &= 0xfd, tr->isa.io) -#define TR_SET_SDA outb(tr->ioval |= 1, tr->isa.io) -#define TR_CLR_SDA outb(tr->ioval &= 0xfe, tr->isa.io) - -static void write_i2c(struct trust *tr, int n, ...) -{ - unsigned char val, mask; - va_list args; - - va_start(args, n); - - /* start condition */ - TR_SET_SDA; - TR_SET_SCL; - TR_DELAY; - TR_CLR_SDA; - TR_CLR_SCL; - TR_DELAY; - - for (; n; n--) { - val = va_arg(args, unsigned); - for (mask = 0x80; mask; mask >>= 1) { - if (val & mask) - TR_SET_SDA; - else - TR_CLR_SDA; - TR_SET_SCL; - TR_DELAY; - TR_CLR_SCL; - TR_DELAY; - } - /* acknowledge bit */ - TR_SET_SDA; - TR_SET_SCL; - TR_DELAY; - TR_CLR_SCL; - TR_DELAY; - } - - /* stop condition */ - TR_CLR_SDA; - TR_DELAY; - TR_SET_SCL; - TR_DELAY; - TR_SET_SDA; - TR_DELAY; - - va_end(args); -} - -static int trust_s_mute_volume(struct radio_isa_card *isa, bool mute, int vol) -{ - struct trust *tr = container_of(isa, struct trust, isa); - - tr->ioval = (tr->ioval & 0xf7) | (mute << 3); - outb(tr->ioval, isa->io); - write_i2c(tr, 2, TDA7318_ADDR, vol ^ 0x1f); - return 0; -} - -static int trust_s_stereo(struct radio_isa_card *isa, bool stereo) -{ - struct trust *tr = container_of(isa, struct trust, isa); - - tr->ioval = (tr->ioval & 0xfb) | (!stereo << 2); - outb(tr->ioval, isa->io); - return 0; -} - -static u32 trust_g_signal(struct radio_isa_card *isa) -{ - int i, v; - - for (i = 0, v = 0; i < 100; i++) - v |= inb(isa->io); - return (v & 1) ? 0 : 0xffff; -} - -static int trust_s_frequency(struct radio_isa_card *isa, u32 freq) -{ - struct trust *tr = container_of(isa, struct trust, isa); - - freq /= 160; /* Convert to 10 kHz units */ - freq += 1070; /* Add 10.7 MHz IF */ - write_i2c(tr, 5, TSA6060T_ADDR, (freq << 1) | 1, - freq >> 7, 0x60 | ((freq >> 15) & 1), 0); - return 0; -} - -static int basstreble2chip[15] = { - 0, 1, 2, 3, 4, 5, 6, 7, 14, 13, 12, 11, 10, 9, 8 -}; - -static int trust_s_ctrl(struct v4l2_ctrl *ctrl) -{ - struct radio_isa_card *isa = - container_of(ctrl->handler, struct radio_isa_card, hdl); - struct trust *tr = container_of(isa, struct trust, isa); - - switch (ctrl->id) { - case V4L2_CID_AUDIO_BASS: - write_i2c(tr, 2, TDA7318_ADDR, 0x60 | basstreble2chip[ctrl->val]); - return 0; - case V4L2_CID_AUDIO_TREBLE: - write_i2c(tr, 2, TDA7318_ADDR, 0x70 | basstreble2chip[ctrl->val]); - return 0; - } - return -EINVAL; -} - -static const struct v4l2_ctrl_ops trust_ctrl_ops = { - .s_ctrl = trust_s_ctrl, -}; - -static int trust_initialize(struct radio_isa_card *isa) -{ - struct trust *tr = container_of(isa, struct trust, isa); - - tr->ioval = 0xf; - write_i2c(tr, 2, TDA7318_ADDR, 0x80); /* speaker att. LF = 0 dB */ - write_i2c(tr, 2, TDA7318_ADDR, 0xa0); /* speaker att. RF = 0 dB */ - write_i2c(tr, 2, TDA7318_ADDR, 0xc0); /* speaker att. LR = 0 dB */ - write_i2c(tr, 2, TDA7318_ADDR, 0xe0); /* speaker att. RR = 0 dB */ - write_i2c(tr, 2, TDA7318_ADDR, 0x40); /* stereo 1 input, gain = 18.75 dB */ - - v4l2_ctrl_new_std(&isa->hdl, &trust_ctrl_ops, - V4L2_CID_AUDIO_BASS, 0, 15, 1, 8); - v4l2_ctrl_new_std(&isa->hdl, &trust_ctrl_ops, - V4L2_CID_AUDIO_TREBLE, 0, 15, 1, 8); - return isa->hdl.error; -} - -static const struct radio_isa_ops trust_ops = { - .init = trust_initialize, - .alloc = trust_alloc, - .s_mute_volume = trust_s_mute_volume, - .s_frequency = trust_s_frequency, - .s_stereo = trust_s_stereo, - .g_signal = trust_g_signal, -}; - -static const int trust_ioports[] = { 0x350, 0x358 }; - -static struct radio_isa_driver trust_driver = { - .driver = { - .match = radio_isa_match, - .probe = radio_isa_probe, - .remove = radio_isa_remove, - .driver = { - .name = "radio-trust", - }, - }, - .io_params = io, - .radio_nr_params = radio_nr, - .io_ports = trust_ioports, - .num_of_io_ports = ARRAY_SIZE(trust_ioports), - .region_size = 2, - .card = "Trust FM Radio", - .ops = &trust_ops, - .has_stereo = true, - .max_volume = 31, -}; - -static int __init trust_init(void) -{ - return isa_register_driver(&trust_driver.driver, TRUST_MAX); -} - -static void __exit trust_exit(void) -{ - isa_unregister_driver(&trust_driver.driver); -} - -module_init(trust_init); -module_exit(trust_exit); |