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Diffstat (limited to 'ANDROID_3.4.5/drivers/media/radio/radio-zoltrix.c')
-rw-r--r--ANDROID_3.4.5/drivers/media/radio/radio-zoltrix.c248
1 files changed, 0 insertions, 248 deletions
diff --git a/ANDROID_3.4.5/drivers/media/radio/radio-zoltrix.c b/ANDROID_3.4.5/drivers/media/radio/radio-zoltrix.c
deleted file mode 100644
index 026e88ee..00000000
--- a/ANDROID_3.4.5/drivers/media/radio/radio-zoltrix.c
+++ /dev/null
@@ -1,248 +0,0 @@
-/*
- * Zoltrix Radio Plus driver
- * Copyright 1998 C. van Schaik <carl@leg.uct.ac.za>
- *
- * BUGS
- * Due to the inconsistency in reading from the signal flags
- * it is difficult to get an accurate tuned signal.
- *
- * It seems that the card is not linear to 0 volume. It cuts off
- * at a low volume, and it is not possible (at least I have not found)
- * to get fine volume control over the low volume range.
- *
- * Some code derived from code by Romolo Manfredini
- * romolo@bicnet.it
- *
- * 1999-05-06 - (C. van Schaik)
- * - Make signal strength and stereo scans
- * kinder to cpu while in delay
- * 1999-01-05 - (C. van Schaik)
- * - Changed tuning to 1/160Mhz accuracy
- * - Added stereo support
- * (card defaults to stereo)
- * (can explicitly force mono on the card)
- * (can detect if station is in stereo)
- * - Added unmute function
- * - Reworked ioctl functions
- * 2002-07-15 - Fix Stereo typo
- *
- * 2006-07-24 - Converted to V4L2 API
- * by Mauro Carvalho Chehab <mchehab@infradead.org>
- *
- * Converted to the radio-isa framework by Hans Verkuil <hans.verkuil@cisco.com>
- *
- * Note that this is the driver for the Zoltrix Radio Plus.
- * This driver does not work for the Zoltrix Radio Plus 108 or the
- * Zoltrix Radio Plus for Windows.
- *
- * 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, msleep */
-#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("C. van Schaik");
-MODULE_DESCRIPTION("A driver for the Zoltrix Radio Plus.");
-MODULE_LICENSE("GPL");
-MODULE_VERSION("0.1.99");
-
-#ifndef CONFIG_RADIO_ZOLTRIX_PORT
-#define CONFIG_RADIO_ZOLTRIX_PORT -1
-#endif
-
-#define ZOLTRIX_MAX 2
-
-static int io[ZOLTRIX_MAX] = { [0] = CONFIG_RADIO_ZOLTRIX_PORT,
- [1 ... (ZOLTRIX_MAX - 1)] = -1 };
-static int radio_nr[ZOLTRIX_MAX] = { [0 ... (ZOLTRIX_MAX - 1)] = -1 };
-
-module_param_array(io, int, NULL, 0444);
-MODULE_PARM_DESC(io, "I/O addresses of the Zoltrix Radio Plus card (0x20c or 0x30c)");
-module_param_array(radio_nr, int, NULL, 0444);
-MODULE_PARM_DESC(radio_nr, "Radio device numbers");
-
-struct zoltrix {
- struct radio_isa_card isa;
- int curvol;
- bool muted;
-};
-
-static struct radio_isa_card *zoltrix_alloc(void)
-{
- struct zoltrix *zol = kzalloc(sizeof(*zol), GFP_KERNEL);
-
- return zol ? &zol->isa : NULL;
-}
-
-static int zoltrix_s_mute_volume(struct radio_isa_card *isa, bool mute, int vol)
-{
- struct zoltrix *zol = container_of(isa, struct zoltrix, isa);
-
- zol->curvol = vol;
- zol->muted = mute;
- if (mute || vol == 0) {
- outb(0, isa->io);
- outb(0, isa->io);
- inb(isa->io + 3); /* Zoltrix needs to be read to confirm */
- return 0;
- }
-
- outb(vol - 1, isa->io);
- msleep(10);
- inb(isa->io + 2);
- return 0;
-}
-
-/* tunes the radio to the desired frequency */
-static int zoltrix_s_frequency(struct radio_isa_card *isa, u32 freq)
-{
- struct zoltrix *zol = container_of(isa, struct zoltrix, isa);
- struct v4l2_device *v4l2_dev = &isa->v4l2_dev;
- unsigned long long bitmask, f, m;
- bool stereo = isa->stereo;
- int i;
-
- if (freq == 0) {
- v4l2_warn(v4l2_dev, "cannot set a frequency of 0.\n");
- return -EINVAL;
- }
-
- m = (freq / 160 - 8800) * 2;
- f = (unsigned long long)m + 0x4d1c;
-
- bitmask = 0xc480402c10080000ull;
- i = 45;
-
- outb(0, isa->io);
- outb(0, isa->io);
- inb(isa->io + 3); /* Zoltrix needs to be read to confirm */
-
- outb(0x40, isa->io);
- outb(0xc0, isa->io);
-
- bitmask = (bitmask ^ ((f & 0xff) << 47) ^ ((f & 0xff00) << 30) ^ (stereo << 31));
- while (i--) {
- if ((bitmask & 0x8000000000000000ull) != 0) {
- outb(0x80, isa->io);
- udelay(50);
- outb(0x00, isa->io);
- udelay(50);
- outb(0x80, isa->io);
- udelay(50);
- } else {
- outb(0xc0, isa->io);
- udelay(50);
- outb(0x40, isa->io);
- udelay(50);
- outb(0xc0, isa->io);
- udelay(50);
- }
- bitmask *= 2;
- }
- /* termination sequence */
- outb(0x80, isa->io);
- outb(0xc0, isa->io);
- outb(0x40, isa->io);
- udelay(1000);
- inb(isa->io + 2);
- udelay(1000);
-
- return zoltrix_s_mute_volume(isa, zol->muted, zol->curvol);
-}
-
-/* Get signal strength */
-static u32 zoltrix_g_rxsubchans(struct radio_isa_card *isa)
-{
- struct zoltrix *zol = container_of(isa, struct zoltrix, isa);
- int a, b;
-
- outb(0x00, isa->io); /* This stuff I found to do nothing */
- outb(zol->curvol, isa->io);
- msleep(20);
-
- a = inb(isa->io);
- msleep(10);
- b = inb(isa->io);
-
- return (a == b && a == 0xcf) ?
- V4L2_TUNER_SUB_STEREO : V4L2_TUNER_SUB_MONO;
-}
-
-static u32 zoltrix_g_signal(struct radio_isa_card *isa)
-{
- struct zoltrix *zol = container_of(isa, struct zoltrix, isa);
- int a, b;
-
- outb(0x00, isa->io); /* This stuff I found to do nothing */
- outb(zol->curvol, isa->io);
- msleep(20);
-
- a = inb(isa->io);
- msleep(10);
- b = inb(isa->io);
-
- if (a != b)
- return 0;
-
- /* I found this out by playing with a binary scanner on the card io */
- return (a == 0xcf || a == 0xdf || a == 0xef) ? 0xffff : 0;
-}
-
-static int zoltrix_s_stereo(struct radio_isa_card *isa, bool stereo)
-{
- return zoltrix_s_frequency(isa, isa->freq);
-}
-
-static const struct radio_isa_ops zoltrix_ops = {
- .alloc = zoltrix_alloc,
- .s_mute_volume = zoltrix_s_mute_volume,
- .s_frequency = zoltrix_s_frequency,
- .s_stereo = zoltrix_s_stereo,
- .g_rxsubchans = zoltrix_g_rxsubchans,
- .g_signal = zoltrix_g_signal,
-};
-
-static const int zoltrix_ioports[] = { 0x20c, 0x30c };
-
-static struct radio_isa_driver zoltrix_driver = {
- .driver = {
- .match = radio_isa_match,
- .probe = radio_isa_probe,
- .remove = radio_isa_remove,
- .driver = {
- .name = "radio-zoltrix",
- },
- },
- .io_params = io,
- .radio_nr_params = radio_nr,
- .io_ports = zoltrix_ioports,
- .num_of_io_ports = ARRAY_SIZE(zoltrix_ioports),
- .region_size = 2,
- .card = "Zoltrix Radio Plus",
- .ops = &zoltrix_ops,
- .has_stereo = true,
- .max_volume = 15,
-};
-
-static int __init zoltrix_init(void)
-{
- return isa_register_driver(&zoltrix_driver.driver, ZOLTRIX_MAX);
-}
-
-static void __exit zoltrix_exit(void)
-{
- isa_unregister_driver(&zoltrix_driver.driver);
-}
-
-module_init(zoltrix_init);
-module_exit(zoltrix_exit);
-
generated by cgit (git 2.34.1) at 2025-03-13 11:12:43 +0000