2005-04-16 22:20:36 +00:00
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/* GemTek radio card driver for Linux (C) 1998 Jonas Munsin <jmunsin@iki.fi>
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*
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* GemTek hasn't released any specs on the card, so the protocol had to
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* be reverse engineered with dosemu.
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*
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* Besides the protocol changes, this is mostly a copy of:
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*
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* RadioTrack II driver for Linux radio support (C) 1998 Ben Pfaff
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2006-04-08 19:06:16 +00:00
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*
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2005-04-16 22:20:36 +00:00
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* Based on RadioTrack I/RadioReveal (C) 1997 M. Kirkwood
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* Converted to new API by Alan Cox <Alan.Cox@linux.org>
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* Various bugfixes and enhancements by Russell Kroll <rkroll@exploits.org>
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*
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* TODO: Allow for more than one of these foolish entities :-)
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*
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2006-08-08 12:10:01 +00:00
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* Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org>
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2005-04-16 22:20:36 +00:00
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*/
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#include <linux/module.h> /* Modules */
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#include <linux/init.h> /* Initdata */
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2005-09-13 08:25:15 +00:00
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#include <linux/ioport.h> /* request_region */
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2005-04-16 22:20:36 +00:00
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#include <linux/delay.h> /* udelay */
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#include <asm/io.h> /* outb, outb_p */
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#include <asm/uaccess.h> /* copy to/from user */
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2006-08-08 12:10:01 +00:00
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#include <linux/videodev2.h> /* kernel radio structs */
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2006-06-05 13:26:32 +00:00
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#include <media/v4l2-common.h>
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2005-04-16 22:20:36 +00:00
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#include <linux/spinlock.h>
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2007-10-01 03:27:55 +00:00
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#include <linux/version.h> /* for KERNEL_VERSION MACRO */
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#define RADIO_VERSION KERNEL_VERSION(0,0,3)
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#define RADIO_BANNER "GemTek Radio card driver: v0.0.3"
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2006-08-08 12:10:01 +00:00
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2007-10-01 03:27:55 +00:00
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/*
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* Module info.
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*/
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MODULE_AUTHOR("Jonas Munsin, Pekka Sepp<70>nen <pexu@kapsi.fi>");
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MODULE_DESCRIPTION("A driver for the GemTek Radio card.");
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MODULE_LICENSE("GPL");
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/*
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* Module params.
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*/
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2006-08-08 12:10:01 +00:00
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2005-04-16 22:20:36 +00:00
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#ifndef CONFIG_RADIO_GEMTEK_PORT
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#define CONFIG_RADIO_GEMTEK_PORT -1
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#endif
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2007-10-01 03:27:55 +00:00
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#ifndef CONFIG_RADIO_GEMTEK_PROBE
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#define CONFIG_RADIO_GEMTEK_PROBE 1
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#endif
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2005-04-16 22:20:36 +00:00
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2007-10-01 03:27:55 +00:00
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static int io = CONFIG_RADIO_GEMTEK_PORT;
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static int probe = CONFIG_RADIO_GEMTEK_PROBE;
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static int hardmute;
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static int shutdown = 1;
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static int keepmuted = 1;
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static int initmute = 1;
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static int radio_nr = -1;
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2005-04-16 22:20:36 +00:00
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2007-10-01 03:27:55 +00:00
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module_param(io, int, 0444);
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MODULE_PARM_DESC(io, "Force I/O port for the GemTek Radio card if automatic"
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"probing is disabled or fails. The most common I/O ports are: 0x20c "
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"0x30c, 0x24c or 0x34c (0x20c, 0x248 and 0x28c have been reported to "
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" work for the combined sound/radiocard).");
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module_param(probe, bool, 0444);
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MODULE_PARM_DESC(probe, "Enable automatic device probing. Note: only the most "
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"common I/O ports used by the card are probed.");
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module_param(hardmute, bool, 0644);
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MODULE_PARM_DESC(hardmute, "Enable `hard muting' by shutting down PLL, may "
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"reduce static noise.");
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module_param(shutdown, bool, 0644);
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MODULE_PARM_DESC(shutdown, "Enable shutting down PLL and muting line when "
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"module is unloaded.");
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module_param(keepmuted, bool, 0644);
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MODULE_PARM_DESC(keepmuted, "Keep card muted even when frequency is changed.");
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module_param(initmute, bool, 0444);
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MODULE_PARM_DESC(initmute, "Mute card when module is loaded.");
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module_param(radio_nr, int, 0444);
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/*
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* Functions for controlling the card.
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*/
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#define GEMTEK_LOWFREQ (87*16000)
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#define GEMTEK_HIGHFREQ (108*16000)
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2007-10-01 03:32:25 +00:00
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/*
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* Frequency calculation constants. Intermediate frequency 10.52 MHz (nominal
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* value 10.7 MHz), reference divisor 6.39 kHz (nominal 6.25 kHz).
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*/
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#define FSCALE 8
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#define IF_OFFSET ((unsigned int)(10.52 * 16000 * (1<<FSCALE)))
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#define REF_FREQ ((unsigned int)(6.39 * 16 * (1<<FSCALE)))
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2007-10-01 03:27:55 +00:00
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#define GEMTEK_CK 0x01 /* Clock signal */
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#define GEMTEK_DA 0x02 /* Serial data */
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#define GEMTEK_CE 0x04 /* Chip enable */
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#define GEMTEK_NS 0x08 /* No signal */
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#define GEMTEK_MT 0x10 /* Line mute */
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#define GEMTEK_STDF_3_125_KHZ 0x01 /* Standard frequency 3.125 kHz */
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#define GEMTEK_PLL_OFF 0x07 /* PLL off */
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#define BU2614_BUS_SIZE 32 /* BU2614 / BU2614FS bus size */
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#define BU2614_NOPS 8 /* Number of supported operations */
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#define SHORT_DELAY 5 /* usec */
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#define LONG_DELAY 75 /* usec */
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struct gemtek_device {
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unsigned long lastfreq;
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2005-04-16 22:20:36 +00:00
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int muted;
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2007-10-01 03:27:55 +00:00
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unsigned long bu2614data[BU2614_NOPS];
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2005-04-16 22:20:36 +00:00
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};
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2007-10-01 03:27:55 +00:00
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enum {
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BU2614_VOID,
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BU2614_FREQ, /* D0..D15, Frequency data */
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BU2614_PORT, /* P0..P2, Output port control data */
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BU2614_FMES, /* CT, Frequency measurement beginning data */
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BU2614_STDF, /* R0..R2, Standard frequency data */
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BU2614_SWIN, /* S, Switch between FMIN / AMIN */
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BU2614_SWAL, /* PS, Swallow counter division (AMIN only) */
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BU2614_FMUN, /* GT, Frequency measurement time and unlock */
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BU2614_TEST /* TS, Test data is input */
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};
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struct bu2614_op {
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int op; /* Operation */
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int size; /* Data size */
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};
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static struct gemtek_device gemtek_unit;
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static struct bu2614_op bu2614ops[] = {
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{.op = BU2614_FREQ,
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.size = 0x10},
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{.op = BU2614_PORT,
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.size = 0x03},
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{.op = BU2614_VOID,
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.size = 0x04},
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{.op = BU2614_FMES,
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.size = 0x01},
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{.op = BU2614_STDF,
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.size = 0x03},
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{.op = BU2614_SWIN,
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.size = 0x01},
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{.op = BU2614_SWAL,
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.size = 0x01},
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{.op = BU2614_VOID,
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.size = 0x01},
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{.op = BU2614_FMUN,
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.size = 0x01},
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{.op = BU2614_TEST,
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.size = 0x01}
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};
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2005-04-16 22:20:36 +00:00
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2007-10-01 03:27:55 +00:00
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static spinlock_t lock;
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2005-04-16 22:20:36 +00:00
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2007-10-01 03:27:55 +00:00
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/*
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* Set data which will be sent to BU2614FS.
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2005-04-16 22:20:36 +00:00
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*/
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2007-10-01 03:27:55 +00:00
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static void gemtek_bu2614_set(struct gemtek_device *dev, int op,
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unsigned long data)
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2005-04-16 22:20:36 +00:00
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{
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2007-10-01 03:27:55 +00:00
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int i, q;
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for (i = 0, q = 0; q < ARRAY_SIZE(dev->bu2614data); ++i) {
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if (bu2614ops[i].op == op) {
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dev->bu2614data[q] =
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data & ((1 << bu2614ops[i].size) - 1);
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return;
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}
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if (bu2614ops[i].op != BU2614_VOID)
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++q;
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}
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}
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/*
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* Transmit settings to BU2614FS over GemTek IC.
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*/
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static void gemtek_bu2614_transmit(struct gemtek_device *dev)
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{
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int i, bit, q, mute;
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2005-04-16 22:20:36 +00:00
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spin_lock(&lock);
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2007-10-01 03:27:55 +00:00
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mute = dev->muted ? GEMTEK_MT : 0x00;
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outb_p(mute | GEMTEK_DA | GEMTEK_CK, io);
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udelay(SHORT_DELAY);
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outb_p(mute | GEMTEK_CE | GEMTEK_DA | GEMTEK_CK, io);
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udelay(LONG_DELAY);
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for (i = 0, q = 0; q < ARRAY_SIZE(dev->bu2614data); ++i) {
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for (bit = 0; bit < bu2614ops[i].size; ++bit) {
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if (bu2614ops[i].op != BU2614_VOID &&
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dev->bu2614data[q] & (1 << bit)) {
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outb_p(mute | GEMTEK_CE | GEMTEK_DA, io);
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udelay(SHORT_DELAY);
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outb_p(mute | GEMTEK_CE | GEMTEK_DA |
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GEMTEK_CK, io);
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udelay(SHORT_DELAY);
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} else {
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outb_p(mute | GEMTEK_CE, io);
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udelay(SHORT_DELAY);
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outb_p(mute | GEMTEK_CE | GEMTEK_CK, io);
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udelay(SHORT_DELAY);
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}
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}
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if (bu2614ops[i].op != BU2614_VOID)
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++q;
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}
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outb_p(mute | GEMTEK_DA | GEMTEK_CK, io);
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udelay(SHORT_DELAY);
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outb_p(mute | GEMTEK_CE | GEMTEK_DA | GEMTEK_CK, io);
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udelay(LONG_DELAY);
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2005-04-16 22:20:36 +00:00
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spin_unlock(&lock);
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}
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2007-10-01 03:27:55 +00:00
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/*
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2007-10-01 03:32:25 +00:00
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* Calculate divisor from FM-frequency for BU2614FS (3.125 KHz STDF expected).
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2007-10-01 03:27:55 +00:00
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*/
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2007-10-01 03:32:25 +00:00
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static unsigned long gemtek_convfreq(unsigned long freq)
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2005-04-16 22:20:36 +00:00
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{
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2007-10-01 03:32:25 +00:00
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return ((freq<<FSCALE) + IF_OFFSET + REF_FREQ/2) / REF_FREQ;
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2007-10-01 03:27:55 +00:00
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}
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/*
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* Set FM-frequency.
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*/
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static void gemtek_setfreq(struct gemtek_device *dev, unsigned long freq)
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{
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if (keepmuted && hardmute && dev->muted)
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2005-04-16 22:20:36 +00:00
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return;
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2007-10-01 03:27:55 +00:00
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if (freq < GEMTEK_LOWFREQ)
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freq = GEMTEK_LOWFREQ;
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else if (freq > GEMTEK_HIGHFREQ)
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freq = GEMTEK_HIGHFREQ;
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dev->lastfreq = freq;
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2005-04-16 22:20:36 +00:00
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dev->muted = 0;
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2007-10-01 03:27:55 +00:00
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gemtek_bu2614_set(dev, BU2614_PORT, 0);
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gemtek_bu2614_set(dev, BU2614_FMES, 0);
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gemtek_bu2614_set(dev, BU2614_SWIN, 0); /* FM-mode */
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gemtek_bu2614_set(dev, BU2614_SWAL, 0);
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gemtek_bu2614_set(dev, BU2614_FMUN, 1); /* GT bit set */
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gemtek_bu2614_set(dev, BU2614_TEST, 0);
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gemtek_bu2614_set(dev, BU2614_STDF, GEMTEK_STDF_3_125_KHZ);
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2007-10-01 03:32:25 +00:00
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gemtek_bu2614_set(dev, BU2614_FREQ, gemtek_convfreq(freq));
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2007-10-01 03:27:55 +00:00
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gemtek_bu2614_transmit(dev);
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2005-04-16 22:20:36 +00:00
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}
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2007-10-01 03:27:55 +00:00
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/*
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* Set mute flag.
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*/
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static void gemtek_mute(struct gemtek_device *dev)
|
2005-04-16 22:20:36 +00:00
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{
|
2007-10-01 03:27:55 +00:00
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int i;
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dev->muted = 1;
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if (hardmute) {
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/* Turn off PLL, disable data output */
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gemtek_bu2614_set(dev, BU2614_PORT, 0);
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gemtek_bu2614_set(dev, BU2614_FMES, 0); /* CT bit off */
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|
|
|
|
gemtek_bu2614_set(dev, BU2614_SWIN, 0); /* FM-mode */
|
|
|
|
|
gemtek_bu2614_set(dev, BU2614_SWAL, 0);
|
|
|
|
|
gemtek_bu2614_set(dev, BU2614_FMUN, 0); /* GT bit off */
|
|
|
|
|
gemtek_bu2614_set(dev, BU2614_TEST, 0);
|
|
|
|
|
gemtek_bu2614_set(dev, BU2614_STDF, GEMTEK_PLL_OFF);
|
|
|
|
|
gemtek_bu2614_set(dev, BU2614_FREQ, 0);
|
|
|
|
|
gemtek_bu2614_transmit(dev);
|
|
|
|
|
} else {
|
|
|
|
|
spin_lock(&lock);
|
|
|
|
|
|
|
|
|
|
/* Read bus contents (CE, CK and DA). */
|
|
|
|
|
i = inb_p(io);
|
|
|
|
|
/* Write it back with mute flag set. */
|
|
|
|
|
outb_p((i >> 5) | GEMTEK_MT, io);
|
|
|
|
|
udelay(SHORT_DELAY);
|
|
|
|
|
|
|
|
|
|
spin_unlock(&lock);
|
|
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
}
|
|
|
|
|
|
2007-10-01 03:27:55 +00:00
|
|
|
|
/*
|
|
|
|
|
* Unset mute flag.
|
|
|
|
|
*/
|
|
|
|
|
static void gemtek_unmute(struct gemtek_device *dev)
|
2005-04-16 22:20:36 +00:00
|
|
|
|
{
|
2007-10-01 03:27:55 +00:00
|
|
|
|
int i;
|
|
|
|
|
dev->muted = 0;
|
|
|
|
|
|
|
|
|
|
if (hardmute) {
|
|
|
|
|
/* Turn PLL back on. */
|
|
|
|
|
gemtek_setfreq(dev, dev->lastfreq);
|
|
|
|
|
} else {
|
|
|
|
|
spin_lock(&lock);
|
|
|
|
|
|
|
|
|
|
i = inb_p(io);
|
|
|
|
|
outb_p(i >> 5, io);
|
|
|
|
|
udelay(SHORT_DELAY);
|
|
|
|
|
|
|
|
|
|
spin_unlock(&lock);
|
|
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
}
|
|
|
|
|
|
2007-10-01 03:27:55 +00:00
|
|
|
|
/*
|
|
|
|
|
* Get signal strength (= stereo status).
|
|
|
|
|
*/
|
|
|
|
|
static inline int gemtek_getsigstr(void)
|
2005-04-16 22:20:36 +00:00
|
|
|
|
{
|
2007-10-01 03:27:55 +00:00
|
|
|
|
return inb_p(io) & GEMTEK_NS ? 0 : 1;
|
|
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
2007-10-01 03:27:55 +00:00
|
|
|
|
/*
|
|
|
|
|
* Check if requested card acts like GemTek Radio card.
|
|
|
|
|
*/
|
|
|
|
|
static int gemtek_verify(int port)
|
|
|
|
|
{
|
|
|
|
|
static int verified = -1;
|
|
|
|
|
int i, q;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
2007-10-01 03:27:55 +00:00
|
|
|
|
if (verified == port)
|
|
|
|
|
return 1;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
|
|
spin_lock(&lock);
|
2006-04-08 19:06:16 +00:00
|
|
|
|
|
2007-10-01 03:27:55 +00:00
|
|
|
|
q = inb_p(port); /* Read bus contents before probing. */
|
|
|
|
|
/* Try to turn on CE, CK and DA respectively and check if card responds
|
|
|
|
|
properly. */
|
|
|
|
|
for (i = 0; i < 3; ++i) {
|
|
|
|
|
outb_p(1 << i, port);
|
|
|
|
|
udelay(SHORT_DELAY);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
2007-10-01 03:27:55 +00:00
|
|
|
|
if ((inb_p(port) & (~GEMTEK_NS)) != (0x17 | (1 << (i + 5)))) {
|
|
|
|
|
spin_unlock(&lock);
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
outb_p(q >> 5, port); /* Write bus contents back. */
|
|
|
|
|
udelay(SHORT_DELAY);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
|
|
spin_unlock(&lock);
|
2007-10-01 03:27:55 +00:00
|
|
|
|
verified = port;
|
2006-04-08 19:06:16 +00:00
|
|
|
|
|
2007-10-01 03:27:55 +00:00
|
|
|
|
return 1;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
}
|
|
|
|
|
|
2007-10-01 03:27:55 +00:00
|
|
|
|
/*
|
|
|
|
|
* Automatic probing for card.
|
|
|
|
|
*/
|
|
|
|
|
static int gemtek_probe(void)
|
2005-04-16 22:20:36 +00:00
|
|
|
|
{
|
2007-10-01 03:27:55 +00:00
|
|
|
|
int ioports[] = { 0x20c, 0x30c, 0x24c, 0x34c, 0x248, 0x28c };
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
if (!probe) {
|
|
|
|
|
printk(KERN_INFO "Automatic device probing disabled.\n");
|
|
|
|
|
return -1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
printk(KERN_INFO "Automatic device probing enabled.\n");
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < ARRAY_SIZE(ioports); ++i) {
|
|
|
|
|
printk(KERN_INFO "Trying I/O port 0x%x...\n", ioports[i]);
|
|
|
|
|
|
|
|
|
|
if (!request_region(ioports[i], 1, "gemtek-probe")) {
|
|
|
|
|
printk(KERN_WARNING "I/O port 0x%x busy!\n",
|
|
|
|
|
ioports[i]);
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (gemtek_verify(ioports[i])) {
|
|
|
|
|
printk(KERN_INFO "Card found from I/O port "
|
|
|
|
|
"0x%x!\n", ioports[i]);
|
|
|
|
|
|
|
|
|
|
release_region(ioports[i], 1);
|
|
|
|
|
|
|
|
|
|
io = ioports[i];
|
|
|
|
|
return io;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
release_region(ioports[i], 1);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
printk(KERN_ERR "Automatic probing failed!\n");
|
|
|
|
|
|
|
|
|
|
return -1;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
}
|
|
|
|
|
|
2007-10-01 03:27:55 +00:00
|
|
|
|
/*
|
|
|
|
|
* Video 4 Linux stuff.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
static struct v4l2_queryctrl radio_qctrl[] = {
|
|
|
|
|
{
|
|
|
|
|
.id = V4L2_CID_AUDIO_MUTE,
|
|
|
|
|
.name = "Mute",
|
|
|
|
|
.minimum = 0,
|
|
|
|
|
.maximum = 1,
|
|
|
|
|
.default_value = 1,
|
|
|
|
|
.type = V4L2_CTRL_TYPE_BOOLEAN,
|
|
|
|
|
}, {
|
|
|
|
|
.id = V4L2_CID_AUDIO_VOLUME,
|
|
|
|
|
.name = "Volume",
|
|
|
|
|
.minimum = 0,
|
|
|
|
|
.maximum = 65535,
|
|
|
|
|
.step = 65535,
|
|
|
|
|
.default_value = 0xff,
|
|
|
|
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
|
|
|
|
}
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
static struct file_operations gemtek_fops = {
|
|
|
|
|
.owner = THIS_MODULE,
|
|
|
|
|
.open = video_exclusive_open,
|
|
|
|
|
.release = video_exclusive_release,
|
|
|
|
|
.ioctl = video_ioctl2,
|
|
|
|
|
.compat_ioctl = v4l_compat_ioctl32,
|
|
|
|
|
.llseek = no_llseek
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
static int vidioc_querycap(struct file *file, void *priv,
|
|
|
|
|
struct v4l2_capability *v)
|
2007-04-25 03:15:46 +00:00
|
|
|
|
{
|
|
|
|
|
strlcpy(v->driver, "radio-gemtek", sizeof(v->driver));
|
|
|
|
|
strlcpy(v->card, "GemTek", sizeof(v->card));
|
|
|
|
|
sprintf(v->bus_info, "ISA");
|
|
|
|
|
v->version = RADIO_VERSION;
|
|
|
|
|
v->capabilities = V4L2_CAP_TUNER;
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2007-10-01 03:27:55 +00:00
|
|
|
|
static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *v)
|
2005-04-16 22:20:36 +00:00
|
|
|
|
{
|
2007-04-25 03:15:46 +00:00
|
|
|
|
if (v->index > 0)
|
|
|
|
|
return -EINVAL;
|
2006-08-08 12:10:01 +00:00
|
|
|
|
|
2007-04-25 03:15:46 +00:00
|
|
|
|
strcpy(v->name, "FM");
|
|
|
|
|
v->type = V4L2_TUNER_RADIO;
|
2007-10-01 03:27:55 +00:00
|
|
|
|
v->rangelow = GEMTEK_LOWFREQ;
|
|
|
|
|
v->rangehigh = GEMTEK_HIGHFREQ;
|
|
|
|
|
v->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO;
|
|
|
|
|
v->signal = 0xffff * gemtek_getsigstr();
|
|
|
|
|
if (v->signal) {
|
|
|
|
|
v->audmode = V4L2_TUNER_MODE_STEREO;
|
|
|
|
|
v->rxsubchans = V4L2_TUNER_SUB_STEREO;
|
|
|
|
|
} else {
|
|
|
|
|
v->audmode = V4L2_TUNER_MODE_MONO;
|
|
|
|
|
v->rxsubchans = V4L2_TUNER_SUB_MONO;
|
|
|
|
|
}
|
|
|
|
|
|
2007-04-25 03:15:46 +00:00
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2007-10-01 03:27:55 +00:00
|
|
|
|
static int vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *v)
|
2007-04-25 03:15:46 +00:00
|
|
|
|
{
|
|
|
|
|
if (v->index > 0)
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
2006-08-08 12:10:01 +00:00
|
|
|
|
|
2007-04-25 03:15:46 +00:00
|
|
|
|
static int vidioc_s_frequency(struct file *file, void *priv,
|
2007-10-01 03:27:55 +00:00
|
|
|
|
struct v4l2_frequency *f)
|
2007-04-25 03:15:46 +00:00
|
|
|
|
{
|
|
|
|
|
struct video_device *dev = video_devdata(file);
|
|
|
|
|
struct gemtek_device *rt = dev->priv;
|
2006-08-08 12:10:01 +00:00
|
|
|
|
|
2007-10-01 03:27:55 +00:00
|
|
|
|
gemtek_setfreq(rt, f->frequency);
|
|
|
|
|
|
2007-04-25 03:15:46 +00:00
|
|
|
|
return 0;
|
|
|
|
|
}
|
2006-08-08 12:10:01 +00:00
|
|
|
|
|
2007-04-25 03:15:46 +00:00
|
|
|
|
static int vidioc_g_frequency(struct file *file, void *priv,
|
2007-10-01 03:27:55 +00:00
|
|
|
|
struct v4l2_frequency *f)
|
2007-04-25 03:15:46 +00:00
|
|
|
|
{
|
|
|
|
|
struct video_device *dev = video_devdata(file);
|
|
|
|
|
struct gemtek_device *rt = dev->priv;
|
2006-08-08 12:10:01 +00:00
|
|
|
|
|
2007-04-25 03:15:46 +00:00
|
|
|
|
f->type = V4L2_TUNER_RADIO;
|
2007-10-01 03:27:55 +00:00
|
|
|
|
f->frequency = rt->lastfreq;
|
2007-04-25 03:15:46 +00:00
|
|
|
|
return 0;
|
|
|
|
|
}
|
2006-08-08 12:10:01 +00:00
|
|
|
|
|
2007-04-25 03:15:46 +00:00
|
|
|
|
static int vidioc_queryctrl(struct file *file, void *priv,
|
2007-10-01 03:27:55 +00:00
|
|
|
|
struct v4l2_queryctrl *qc)
|
2007-04-25 03:15:46 +00:00
|
|
|
|
{
|
|
|
|
|
int i;
|
2006-08-08 12:10:01 +00:00
|
|
|
|
|
2007-10-01 03:27:55 +00:00
|
|
|
|
for (i = 0; i < ARRAY_SIZE(radio_qctrl); ++i) {
|
2007-04-25 03:15:46 +00:00
|
|
|
|
if (qc->id && qc->id == radio_qctrl[i].id) {
|
2007-10-01 03:27:55 +00:00
|
|
|
|
memcpy(qc, &(radio_qctrl[i]), sizeof(*qc));
|
2005-04-16 22:20:36 +00:00
|
|
|
|
return 0;
|
|
|
|
|
}
|
2007-04-25 03:15:46 +00:00
|
|
|
|
}
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
2007-04-25 03:15:46 +00:00
|
|
|
|
static int vidioc_g_ctrl(struct file *file, void *priv,
|
2007-10-01 03:27:55 +00:00
|
|
|
|
struct v4l2_control *ctrl)
|
2007-04-25 03:15:46 +00:00
|
|
|
|
{
|
|
|
|
|
struct video_device *dev = video_devdata(file);
|
|
|
|
|
struct gemtek_device *rt = dev->priv;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
2007-04-25 03:15:46 +00:00
|
|
|
|
switch (ctrl->id) {
|
|
|
|
|
case V4L2_CID_AUDIO_MUTE:
|
|
|
|
|
ctrl->value = rt->muted;
|
|
|
|
|
return 0;
|
|
|
|
|
case V4L2_CID_AUDIO_VOLUME:
|
|
|
|
|
if (rt->muted)
|
|
|
|
|
ctrl->value = 0;
|
|
|
|
|
else
|
|
|
|
|
ctrl->value = 65535;
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int vidioc_s_ctrl(struct file *file, void *priv,
|
2007-10-01 03:27:55 +00:00
|
|
|
|
struct v4l2_control *ctrl)
|
2007-04-25 03:15:46 +00:00
|
|
|
|
{
|
|
|
|
|
struct video_device *dev = video_devdata(file);
|
|
|
|
|
struct gemtek_device *rt = dev->priv;
|
|
|
|
|
|
|
|
|
|
switch (ctrl->id) {
|
|
|
|
|
case V4L2_CID_AUDIO_MUTE:
|
|
|
|
|
if (ctrl->value)
|
|
|
|
|
gemtek_mute(rt);
|
|
|
|
|
else
|
|
|
|
|
gemtek_unmute(rt);
|
|
|
|
|
return 0;
|
|
|
|
|
case V4L2_CID_AUDIO_VOLUME:
|
|
|
|
|
if (ctrl->value)
|
|
|
|
|
gemtek_unmute(rt);
|
|
|
|
|
else
|
|
|
|
|
gemtek_mute(rt);
|
|
|
|
|
return 0;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
}
|
2007-04-25 03:15:46 +00:00
|
|
|
|
return -EINVAL;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
}
|
|
|
|
|
|
2007-10-01 03:27:55 +00:00
|
|
|
|
static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
|
2005-04-16 22:20:36 +00:00
|
|
|
|
{
|
2007-04-25 03:15:46 +00:00
|
|
|
|
if (a->index > 1)
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
|
|
strcpy(a->name, "Radio");
|
|
|
|
|
a->capability = V4L2_AUDCAP_STEREO;
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
|
|
|
|
|
{
|
|
|
|
|
*i = 0;
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
|
|
|
|
|
{
|
|
|
|
|
if (i != 0)
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2007-10-01 03:27:55 +00:00
|
|
|
|
static int vidioc_s_audio(struct file *file, void *priv, struct v4l2_audio *a)
|
2007-04-25 03:15:46 +00:00
|
|
|
|
{
|
|
|
|
|
if (a->index != 0)
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
return 0;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
}
|
|
|
|
|
|
2007-10-01 03:27:55 +00:00
|
|
|
|
static struct video_device gemtek_radio = {
|
|
|
|
|
.owner = THIS_MODULE,
|
|
|
|
|
.name = "GemTek Radio card",
|
|
|
|
|
.type = VID_TYPE_TUNER,
|
|
|
|
|
.hardware = VID_HARDWARE_GEMTEK,
|
|
|
|
|
.fops = &gemtek_fops,
|
|
|
|
|
.vidioc_querycap = vidioc_querycap,
|
|
|
|
|
.vidioc_g_tuner = vidioc_g_tuner,
|
|
|
|
|
.vidioc_s_tuner = vidioc_s_tuner,
|
|
|
|
|
.vidioc_g_audio = vidioc_g_audio,
|
|
|
|
|
.vidioc_s_audio = vidioc_s_audio,
|
|
|
|
|
.vidioc_g_input = vidioc_g_input,
|
|
|
|
|
.vidioc_s_input = vidioc_s_input,
|
|
|
|
|
.vidioc_g_frequency = vidioc_g_frequency,
|
|
|
|
|
.vidioc_s_frequency = vidioc_s_frequency,
|
|
|
|
|
.vidioc_queryctrl = vidioc_queryctrl,
|
|
|
|
|
.vidioc_g_ctrl = vidioc_g_ctrl,
|
|
|
|
|
.vidioc_s_ctrl = vidioc_s_ctrl
|
2005-04-16 22:20:36 +00:00
|
|
|
|
};
|
|
|
|
|
|
2007-10-01 03:27:55 +00:00
|
|
|
|
/*
|
|
|
|
|
* Initialization / cleanup related stuff.
|
|
|
|
|
*/
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
2007-10-01 03:27:55 +00:00
|
|
|
|
/*
|
|
|
|
|
* Initilize card.
|
|
|
|
|
*/
|
2005-04-16 22:20:36 +00:00
|
|
|
|
static int __init gemtek_init(void)
|
|
|
|
|
{
|
2007-10-01 03:27:55 +00:00
|
|
|
|
int i;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
2007-10-01 03:27:55 +00:00
|
|
|
|
printk(KERN_INFO RADIO_BANNER "\n");
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
2007-10-01 03:27:55 +00:00
|
|
|
|
spin_lock_init(&lock);
|
2006-04-08 19:06:16 +00:00
|
|
|
|
|
2007-10-01 03:27:55 +00:00
|
|
|
|
gemtek_probe();
|
|
|
|
|
if (io) {
|
|
|
|
|
if (!request_region(io, 1, "gemtek")) {
|
|
|
|
|
printk(KERN_ERR "I/O port 0x%x already in use.\n", io);
|
|
|
|
|
return -EBUSY;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (!gemtek_verify(io))
|
|
|
|
|
printk(KERN_WARNING "Card at I/O port 0x%x does not "
|
|
|
|
|
"respond properly, check your "
|
|
|
|
|
"configuration.\n", io);
|
|
|
|
|
else
|
|
|
|
|
printk(KERN_INFO "Using I/O port 0x%x.\n", io);
|
|
|
|
|
} else if (probe) {
|
|
|
|
|
printk(KERN_ERR "Automatic probing failed and no "
|
|
|
|
|
"fixed I/O port defined.\n");
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
} else {
|
|
|
|
|
printk(KERN_ERR "Automatic probing disabled but no fixed "
|
|
|
|
|
"I/O port defined.");
|
2005-04-16 22:20:36 +00:00
|
|
|
|
return -EINVAL;
|
|
|
|
|
}
|
|
|
|
|
|
2007-10-01 03:27:55 +00:00
|
|
|
|
gemtek_radio.priv = &gemtek_unit;
|
|
|
|
|
|
|
|
|
|
if (video_register_device(&gemtek_radio, VFL_TYPE_RADIO,
|
|
|
|
|
radio_nr) == -1) {
|
|
|
|
|
release_region(io, 1);
|
|
|
|
|
return -EBUSY;
|
|
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
2007-10-01 03:27:55 +00:00
|
|
|
|
/* Set defaults */
|
|
|
|
|
gemtek_unit.lastfreq = GEMTEK_LOWFREQ;
|
|
|
|
|
for (i = 0; i < ARRAY_SIZE(gemtek_unit.bu2614data); ++i)
|
|
|
|
|
gemtek_unit.bu2614data[i] = 0;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
2007-10-01 03:27:55 +00:00
|
|
|
|
if (initmute)
|
|
|
|
|
gemtek_mute(&gemtek_unit);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2007-10-01 03:27:55 +00:00
|
|
|
|
/*
|
|
|
|
|
* Module cleanup
|
|
|
|
|
*/
|
|
|
|
|
static void __exit gemtek_exit(void)
|
2005-04-16 22:20:36 +00:00
|
|
|
|
{
|
2007-10-01 03:27:55 +00:00
|
|
|
|
if (shutdown) {
|
|
|
|
|
hardmute = 1; /* Turn off PLL */
|
|
|
|
|
gemtek_mute(&gemtek_unit);
|
|
|
|
|
} else {
|
|
|
|
|
printk(KERN_INFO "Module unloaded but card not muted!\n");
|
|
|
|
|
}
|
|
|
|
|
|
2005-04-16 22:20:36 +00:00
|
|
|
|
video_unregister_device(&gemtek_radio);
|
2007-10-01 03:27:55 +00:00
|
|
|
|
release_region(io, 1);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
module_init(gemtek_init);
|
2007-10-01 03:27:55 +00:00
|
|
|
|
module_exit(gemtek_exit);
|