Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 492 insertions, 0 deletions

diff --git a/drivers/media/video/ir-kbd-i2c.c b/drivers/media/video/ir-kbd-i2c.c
new file mode 100644
index 000000000000..92664f75d327
--- /dev/null
+++ b/drivers/media/video/ir-kbd-i2c.c
@@ -0,0 +1,492 @@
+/*
+ * $Id: ir-kbd-i2c.c,v 1.10 2004/12/09 12:51:35 kraxel Exp $
+ *
+ * keyboard input driver for i2c IR remote controls
+ *
+ * Copyright (c) 2000-2003 Gerd Knorr <kraxel@bytesex.org>
+ * modified for PixelView (BT878P+W/FM) by
+ *      Michal Kochanowicz <mkochano@pld.org.pl>
+ *      Christoph Bartelmus <lirc@bartelmus.de>
+ * modified for KNC ONE TV Station/Anubis Typhoon TView Tuner by
+ *      Ulrich Mueller <ulrich.mueller42@web.de>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/string.h>
+#include <linux/timer.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/workqueue.h>
+
+#include <asm/semaphore.h>
+
+#include <media/ir-common.h>
+
+/* Mark Phalan <phalanm@o2.ie> */
+static IR_KEYTAB_TYPE ir_codes_pv951[IR_KEYTAB_SIZE] = {
+	[  0 ] = KEY_KP0,
+	[  1 ] = KEY_KP1,
+	[  2 ] = KEY_KP2,
+	[  3 ] = KEY_KP3,
+	[  4 ] = KEY_KP4,
+	[  5 ] = KEY_KP5,
+	[  6 ] = KEY_KP6,
+	[  7 ] = KEY_KP7,
+	[  8 ] = KEY_KP8,
+	[  9 ] = KEY_KP9,
+
+	[ 18 ] = KEY_POWER,
+	[ 16 ] = KEY_MUTE,
+	[ 31 ] = KEY_VOLUMEDOWN,
+	[ 27 ] = KEY_VOLUMEUP,
+	[ 26 ] = KEY_CHANNELUP,
+	[ 30 ] = KEY_CHANNELDOWN,
+	[ 14 ] = KEY_PAGEUP,
+	[ 29 ] = KEY_PAGEDOWN,
+	[ 19 ] = KEY_SOUND,
+
+	[ 24 ] = KEY_KPPLUSMINUS,	// CH +/-
+	[ 22 ] = KEY_SUBTITLE,		// CC
+	[ 13 ] = KEY_TEXT,		// TTX
+	[ 11 ] = KEY_TV,		// AIR/CBL
+	[ 17 ] = KEY_PC,		// PC/TV
+	[ 23 ] = KEY_OK,		// CH RTN
+	[ 25 ] = KEY_MODE, 		// FUNC
+	[ 12 ] = KEY_SEARCH, 		// AUTOSCAN
+
+	/* Not sure what to do with these ones! */
+	[ 15 ] = KEY_SELECT, 		// SOURCE
+	[ 10 ] = KEY_KPPLUS,		// +100
+	[ 20 ] = KEY_KPEQUAL,		// SYNC
+	[ 28 ] = KEY_MEDIA,             // PC/TV
+};
+
+static IR_KEYTAB_TYPE ir_codes_purpletv[IR_KEYTAB_SIZE] = {
+	[ 0x3  ] = KEY_POWER,
+	[ 0x6f ] = KEY_MUTE,
+	[ 0x10 ] = KEY_BACKSPACE,	// Recall
+
+	[ 0x11 ] = KEY_KP0,
+	[ 0x4  ] = KEY_KP1,
+	[ 0x5  ] = KEY_KP2,
+	[ 0x6  ] = KEY_KP3,
+	[ 0x8  ] = KEY_KP4,
+	[ 0x9  ] = KEY_KP5,
+	[ 0xa  ] = KEY_KP6,
+	[ 0xc  ] = KEY_KP7,
+	[ 0xd  ] = KEY_KP8,
+	[ 0xe  ] = KEY_KP9,
+	[ 0x12 ] = KEY_KPDOT,		// 100+
+
+	[ 0x7  ] = KEY_VOLUMEUP,
+	[ 0xb  ] = KEY_VOLUMEDOWN,
+	[ 0x1a ] = KEY_KPPLUS,
+	[ 0x18 ] = KEY_KPMINUS,
+	[ 0x15 ] = KEY_UP,
+	[ 0x1d ] = KEY_DOWN,
+	[ 0xf  ] = KEY_CHANNELUP,
+	[ 0x13 ] = KEY_CHANNELDOWN,
+	[ 0x48 ] = KEY_ZOOM,
+
+	[ 0x1b ] = KEY_VIDEO,		// Video source
+#if 0
+	[ 0x1f ] = KEY_S,       	// Snapshot
+#endif
+	[ 0x49 ] = KEY_LANGUAGE,	// MTS Select
+	[ 0x19 ] = KEY_SEARCH,		// Auto Scan
+
+	[ 0x4b ] = KEY_RECORD,
+	[ 0x46 ] = KEY_PLAY,
+	[ 0x45 ] = KEY_PAUSE,   	// Pause
+	[ 0x44 ] = KEY_STOP,
+#if 0
+	[ 0x43 ] = KEY_T,    		// Time Shift
+	[ 0x47 ] = KEY_Y,    		// Time Shift OFF
+	[ 0x4a ] = KEY_O,    		// TOP
+	[ 0x17 ] = KEY_F,    		// SURF CH
+#endif
+	[ 0x40 ] = KEY_FORWARD,   	// Forward ?
+	[ 0x42 ] = KEY_REWIND,   	// Backward ?
+
+};
+
+struct IR;
+struct IR {
+	struct i2c_client      c;
+	struct input_dev       input;
+	struct ir_input_state  ir;
+
+	struct work_struct     work;
+	struct timer_list      timer;
+	char                   phys[32];
+	int                    (*get_key)(struct IR*, u32*, u32*);
+};
+
+/* ----------------------------------------------------------------------- */
+/* insmod parameters                                                       */
+
+static int debug;
+module_param(debug, int, 0644);    /* debug level (0,1,2) */
+
+#define DEVNAME "ir-kbd-i2c"
+#define dprintk(level, fmt, arg...)	if (debug >= level) \
+	printk(KERN_DEBUG DEVNAME ": " fmt , ## arg)
+
+/* ----------------------------------------------------------------------- */
+
+static int get_key_haup(struct IR *ir, u32 *ir_key, u32 *ir_raw)
+{
+	unsigned char buf[3];
+	int start, toggle, dev, code;
+
+	/* poll IR chip */
+	if (3 != i2c_master_recv(&ir->c,buf,3))
+		return -EIO;
+
+	/* split rc5 data block ... */
+	start  = (buf[0] >> 6) &    3;
+	toggle = (buf[0] >> 5) &    1;
+	dev    =  buf[0]       & 0x1f;
+	code   = (buf[1] >> 2) & 0x3f;
+
+	if (3 != start)
+		/* no key pressed */
+		return 0;
+	dprintk(1,"ir hauppauge (rc5): s%d t%d dev=%d code=%d\n",
+		start, toggle, dev, code);
+
+	/* return key */
+	*ir_key = code;
+	*ir_raw = (start << 12) | (toggle << 11) | (dev << 6) | code;
+	return 1;
+}
+
+static int get_key_pixelview(struct IR *ir, u32 *ir_key, u32 *ir_raw)
+{
+        unsigned char b;
+
+	/* poll IR chip */
+	if (1 != i2c_master_recv(&ir->c,&b,1)) {
+		dprintk(1,"read error\n");
+		return -EIO;
+	}
+	*ir_key = b;
+	*ir_raw = b;
+	return 1;
+}
+
+static int get_key_pv951(struct IR *ir, u32 *ir_key, u32 *ir_raw)
+{
+        unsigned char b;
+
+	/* poll IR chip */
+	if (1 != i2c_master_recv(&ir->c,&b,1)) {
+		dprintk(1,"read error\n");
+		return -EIO;
+	}
+
+	/* ignore 0xaa */
+	if (b==0xaa)
+		return 0;
+	dprintk(2,"key %02x\n", b);
+
+	*ir_key = b;
+	*ir_raw = b;
+	return 1;
+}
+
+static int get_key_knc1(struct IR *ir, u32 *ir_key, u32 *ir_raw)
+{
+	unsigned char b;
+
+	/* poll IR chip */
+	if (1 != i2c_master_recv(&ir->c,&b,1)) {
+		dprintk(1,"read error\n");
+		return -EIO;
+	}
+
+	/* it seems that 0xFE indicates that a button is still hold
+	   down, while 0xFF indicates that no button is hold
+	   down. 0xFE sequences are sometimes interrupted by 0xFF */
+
+	dprintk(2,"key %02x\n", b);
+
+	if (b == 0xFF)
+		return 0;
+
+	if (b == 0xFE)
+		/* keep old data */
+		return 1;
+
+	*ir_key = b;
+	*ir_raw = b;
+	return 1;
+}
+
+static int get_key_purpletv(struct IR *ir, u32 *ir_key, u32 *ir_raw)
+{
+        unsigned char b;
+
+	/* poll IR chip */
+	if (1 != i2c_master_recv(&ir->c,&b,1)) {
+		dprintk(1,"read error\n");
+		return -EIO;
+	}
+
+	/* no button press */
+	if (b==0)
+		return 0;
+
+	/* repeating */
+	if (b & 0x80)
+		return 1;
+
+	*ir_key = b;
+	*ir_raw = b;
+	return 1;
+}
+/* ----------------------------------------------------------------------- */
+
+static void ir_key_poll(struct IR *ir)
+{
+	static u32 ir_key, ir_raw;
+	int rc;
+
+	dprintk(2,"ir_poll_key\n");
+	rc = ir->get_key(ir, &ir_key, &ir_raw);
+	if (rc < 0) {
+		dprintk(2,"error\n");
+		return;
+	}
+
+	if (0 == rc) {
+		ir_input_nokey(&ir->input,&ir->ir);
+	} else {
+		ir_input_keydown(&ir->input,&ir->ir, ir_key, ir_raw);
+	}
+}
+
+static void ir_timer(unsigned long data)
+{
+	struct IR *ir = (struct IR*)data;
+	schedule_work(&ir->work);
+}
+
+static void ir_work(void *data)
+{
+	struct IR *ir = data;
+	ir_key_poll(ir);
+	mod_timer(&ir->timer, jiffies+HZ/10);
+}
+
+/* ----------------------------------------------------------------------- */
+
+static int ir_attach(struct i2c_adapter *adap, int addr,
+		      unsigned short flags, int kind);
+static int ir_detach(struct i2c_client *client);
+static int ir_probe(struct i2c_adapter *adap);
+
+static struct i2c_driver driver = {
+        .name           = "ir remote kbd driver",
+        .id             = I2C_DRIVERID_EXP3, /* FIXME */
+        .flags          = I2C_DF_NOTIFY,
+        .attach_adapter = ir_probe,
+        .detach_client  = ir_detach,
+};
+
+static struct i2c_client client_template =
+{
+        I2C_DEVNAME("unset"),
+        .driver = &driver
+};
+
+static int ir_attach(struct i2c_adapter *adap, int addr,
+		     unsigned short flags, int kind)
+{
+	IR_KEYTAB_TYPE *ir_codes = NULL;
+	char *name;
+	int ir_type;
+        struct IR *ir;
+
+        if (NULL == (ir = kmalloc(sizeof(struct IR),GFP_KERNEL)))
+                return -ENOMEM;
+	memset(ir,0,sizeof(*ir));
+	ir->c = client_template;
+
+	i2c_set_clientdata(&ir->c, ir);
+	ir->c.adapter = adap;
+	ir->c.addr    = addr;
+
+	switch(addr) {
+	case 0x64:
+		name        = "Pixelview";
+		ir->get_key = get_key_pixelview;
+		ir_type     = IR_TYPE_OTHER;
+		ir_codes    = ir_codes_empty;
+		break;
+	case 0x4b:
+		name        = "PV951";
+		ir->get_key = get_key_pv951;
+		ir_type     = IR_TYPE_OTHER;
+		ir_codes    = ir_codes_pv951;
+		break;
+	case 0x18:
+	case 0x1a:
+		name        = "Hauppauge";
+		ir->get_key = get_key_haup;
+		ir_type     = IR_TYPE_RC5;
+		ir_codes    = ir_codes_rc5_tv;
+		break;
+	case 0x30:
+		name        = "KNC One";
+		ir->get_key = get_key_knc1;
+		ir_type     = IR_TYPE_OTHER;
+		ir_codes    = ir_codes_empty;
+		break;
+	case 0x7a:
+		name        = "Purple TV";
+		ir->get_key = get_key_purpletv;
+		ir_type     = IR_TYPE_OTHER;
+		ir_codes    = ir_codes_purpletv;
+		break;
+	default:
+		/* shouldn't happen */
+		printk(DEVNAME ": Huh? unknown i2c address (0x%02x)?\n",addr);
+		kfree(ir);
+		return -1;
+	}
+
+	/* register i2c device */
+	i2c_attach_client(&ir->c);
+	snprintf(ir->c.name, sizeof(ir->c.name), "i2c IR (%s)", name);
+	snprintf(ir->phys, sizeof(ir->phys), "%s/%s/ir0",
+		 ir->c.adapter->dev.bus_id,
+		 ir->c.dev.bus_id);
+
+	/* init + register input device */
+	ir_input_init(&ir->input,&ir->ir,ir_type,ir_codes);
+	ir->input.id.bustype = BUS_I2C;
+	ir->input.name       = ir->c.name;
+	ir->input.phys       = ir->phys;
+	input_register_device(&ir->input);
+	printk(DEVNAME ": %s detected at %s [%s]\n",
+	       ir->input.name,ir->input.phys,adap->name);
+
+	/* start polling via eventd */
+	INIT_WORK(&ir->work, ir_work, ir);
+	init_timer(&ir->timer);
+	ir->timer.function = ir_timer;
+	ir->timer.data     = (unsigned long)ir;
+	schedule_work(&ir->work);
+
+	return 0;
+}
+
+static int ir_detach(struct i2c_client *client)
+{
+        struct IR *ir = i2c_get_clientdata(client);
+
+	/* kill outstanding polls */
+	del_timer(&ir->timer);
+	flush_scheduled_work();
+
+	/* unregister devices */
+	input_unregister_device(&ir->input);
+	i2c_detach_client(&ir->c);
+
+	/* free memory */
+	kfree(ir);
+	return 0;
+}
+
+static int ir_probe(struct i2c_adapter *adap)
+{
+
+	/* The external IR receiver is at i2c address 0x34 (0x35 for
+	   reads).  Future Hauppauge cards will have an internal
+	   receiver at 0x30 (0x31 for reads).  In theory, both can be
+	   fitted, and Hauppauge suggest an external overrides an
+	   internal.
+
+	   That's why we probe 0x1a (~0x34) first. CB
+	*/
+
+	static const int probe_bttv[] = { 0x1a, 0x18, 0x4b, 0x64, 0x30, -1};
+	static const int probe_saa7134[] = { 0x7a, -1 };
+	const int *probe = NULL;
+	struct i2c_client c; char buf; int i,rc;
+
+	switch (adap->id) {
+	case I2C_ALGO_BIT | I2C_HW_B_BT848:
+		probe = probe_bttv;
+		break;
+	case I2C_ALGO_SAA7134:
+		probe = probe_saa7134;
+		break;
+	}
+	if (NULL == probe)
+		return 0;
+
+	memset(&c,0,sizeof(c));
+	c.adapter = adap;
+	for (i = 0; -1 != probe[i]; i++) {
+		c.addr = probe[i];
+		rc = i2c_master_recv(&c,&buf,1);
+		dprintk(1,"probe 0x%02x @ %s: %s\n",
+			probe[i], adap->name,
+			(1 == rc) ? "yes" : "no");
+		if (1 == rc) {
+			ir_attach(adap,probe[i],0,0);
+			break;
+		}
+	}
+	return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+
+MODULE_AUTHOR("Gerd Knorr, Michal Kochanowicz, Christoph Bartelmus, Ulrich Mueller");
+MODULE_DESCRIPTION("input driver for i2c IR remote controls");
+MODULE_LICENSE("GPL");
+
+static int __init ir_init(void)
+{
+	return i2c_add_driver(&driver);
+}
+
+static void __exit ir_fini(void)
+{
+	i2c_del_driver(&driver);
+}
+
+module_init(ir_init);
+module_exit(ir_fini);
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */