diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/media/radio/radio-aimslab.c')
| -rw-r--r-- | ANDROID_3.4.5/drivers/media/radio/radio-aimslab.c | 210 |
1 files changed, 0 insertions, 210 deletions
diff --git a/ANDROID_3.4.5/drivers/media/radio/radio-aimslab.c b/ANDROID_3.4.5/drivers/media/radio/radio-aimslab.c deleted file mode 100644 index 98e0c8c2..00000000 --- a/ANDROID_3.4.5/drivers/media/radio/radio-aimslab.c +++ /dev/null @@ -1,210 +0,0 @@ -/* - * AimsLab RadioTrack (aka RadioVeveal) driver - * - * Copyright 1997 M. Kirkwood - * - * Converted to the radio-isa framework by Hans Verkuil <hans.verkuil@cisco.com> - * Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org> - * Converted to new API by Alan Cox <alan@lxorguk.ukuu.org.uk> - * Various bugfixes and enhancements by Russell Kroll <rkroll@exploits.org> - * - * Notes on the hardware (reverse engineered from other peoples' - * reverse engineering of AIMS' code :-) - * - * Frequency control is done digitally -- ie out(port,encodefreq(95.8)); - * - * The signal strength query is unsurprisingly inaccurate. And it seems - * to indicate that (on my card, at least) the frequency setting isn't - * too great. (I have to tune up .025MHz from what the freq should be - * to get a report that the thing is tuned.) - * - * Volume control is (ugh) analogue: - * out(port, start_increasing_volume); - * wait(a_wee_while); - * out(port, stop_changing_the_volume); - * - * 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> /* msleep */ -#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("M. Kirkwood"); -MODULE_DESCRIPTION("A driver for the RadioTrack/RadioReveal radio card."); -MODULE_LICENSE("GPL"); -MODULE_VERSION("1.0.0"); - -#ifndef CONFIG_RADIO_RTRACK_PORT -#define CONFIG_RADIO_RTRACK_PORT -1 -#endif - -#define RTRACK_MAX 2 - -static int io[RTRACK_MAX] = { [0] = CONFIG_RADIO_RTRACK_PORT, - [1 ... (RTRACK_MAX - 1)] = -1 }; -static int radio_nr[RTRACK_MAX] = { [0 ... (RTRACK_MAX - 1)] = -1 }; - -module_param_array(io, int, NULL, 0444); -MODULE_PARM_DESC(io, "I/O addresses of the RadioTrack card (0x20f or 0x30f)"); -module_param_array(radio_nr, int, NULL, 0444); -MODULE_PARM_DESC(radio_nr, "Radio device numbers"); - -struct rtrack { - struct radio_isa_card isa; - int curvol; -}; - -static struct radio_isa_card *rtrack_alloc(void) -{ - struct rtrack *rt = kzalloc(sizeof(struct rtrack), GFP_KERNEL); - - if (rt) - rt->curvol = 0xff; - return rt ? &rt->isa : NULL; -} - -/* The 128+64 on these outb's is to keep the volume stable while tuning. - * Without them, the volume _will_ creep up with each frequency change - * and bit 4 (+16) is to keep the signal strength meter enabled. - */ - -static void send_0_byte(struct radio_isa_card *isa, int on) -{ - outb_p(128+64+16+on+1, isa->io); /* wr-enable + data low */ - outb_p(128+64+16+on+2+1, isa->io); /* clock */ - msleep(1); -} - -static void send_1_byte(struct radio_isa_card *isa, int on) -{ - outb_p(128+64+16+on+4+1, isa->io); /* wr-enable+data high */ - outb_p(128+64+16+on+4+2+1, isa->io); /* clock */ - msleep(1); -} - -static int rtrack_s_frequency(struct radio_isa_card *isa, u32 freq) -{ - int on = v4l2_ctrl_g_ctrl(isa->mute) ? 0 : 8; - int i; - - freq += 171200; /* Add 10.7 MHz IF */ - freq /= 800; /* Convert to 50 kHz units */ - - send_0_byte(isa, on); /* 0: LSB of frequency */ - - for (i = 0; i < 13; i++) /* : frequency bits (1-13) */ - if (freq & (1 << i)) - send_1_byte(isa, on); - else - send_0_byte(isa, on); - - send_0_byte(isa, on); /* 14: test bit - always 0 */ - send_0_byte(isa, on); /* 15: test bit - always 0 */ - - send_0_byte(isa, on); /* 16: band data 0 - always 0 */ - send_0_byte(isa, on); /* 17: band data 1 - always 0 */ - send_0_byte(isa, on); /* 18: band data 2 - always 0 */ - send_0_byte(isa, on); /* 19: time base - always 0 */ - - send_0_byte(isa, on); /* 20: spacing (0 = 25 kHz) */ - send_1_byte(isa, on); /* 21: spacing (1 = 25 kHz) */ - send_0_byte(isa, on); /* 22: spacing (0 = 25 kHz) */ - send_1_byte(isa, on); /* 23: AM/FM (FM = 1, always) */ - - outb(0xd0 + on, isa->io); /* volume steady + sigstr */ - return 0; -} - -static u32 rtrack_g_signal(struct radio_isa_card *isa) -{ - /* bit set = no signal present */ - return 0xffff * !(inb(isa->io) & 2); -} - -static int rtrack_s_mute_volume(struct radio_isa_card *isa, bool mute, int vol) -{ - struct rtrack *rt = container_of(isa, struct rtrack, isa); - int curvol = rt->curvol; - - if (mute) { - outb(0xd0, isa->io); /* volume steady + sigstr + off */ - return 0; - } - if (vol == 0) { /* volume = 0 means mute the card */ - outb(0x48, isa->io); /* volume down but still "on" */ - msleep(curvol * 3); /* make sure it's totally down */ - } else if (curvol < vol) { - outb(0x98, isa->io); /* volume up + sigstr + on */ - for (; curvol < vol; curvol++) - udelay(3000); - } else if (curvol > vol) { - outb(0x58, isa->io); /* volume down + sigstr + on */ - for (; curvol > vol; curvol--) - udelay(3000); - } - outb(0xd8, isa->io); /* volume steady + sigstr + on */ - rt->curvol = vol; - return 0; -} - -/* Mute card - prevents noisy bootups */ -static int rtrack_initialize(struct radio_isa_card *isa) -{ - /* this ensures that the volume is all the way up */ - outb(0x90, isa->io); /* volume up but still "on" */ - msleep(3000); /* make sure it's totally up */ - outb(0xc0, isa->io); /* steady volume, mute card */ - return 0; -} - -static const struct radio_isa_ops rtrack_ops = { - .alloc = rtrack_alloc, - .init = rtrack_initialize, - .s_mute_volume = rtrack_s_mute_volume, - .s_frequency = rtrack_s_frequency, - .g_signal = rtrack_g_signal, -}; - -static const int rtrack_ioports[] = { 0x20f, 0x30f }; - -static struct radio_isa_driver rtrack_driver = { - .driver = { - .match = radio_isa_match, - .probe = radio_isa_probe, - .remove = radio_isa_remove, - .driver = { - .name = "radio-aimslab", - }, - }, - .io_params = io, - .radio_nr_params = radio_nr, - .io_ports = rtrack_ioports, - .num_of_io_ports = ARRAY_SIZE(rtrack_ioports), - .region_size = 2, - .card = "AIMSlab RadioTrack/RadioReveal", - .ops = &rtrack_ops, - .has_stereo = true, - .max_volume = 0xff, -}; - -static int __init rtrack_init(void) -{ - return isa_register_driver(&rtrack_driver.driver, RTRACK_MAX); -} - -static void __exit rtrack_exit(void) -{ - isa_unregister_driver(&rtrack_driver.driver); -} - -module_init(rtrack_init); -module_exit(rtrack_exit); |