1 files changed, 415 insertions, 0 deletions

diff --git a/drivers/media/dvb/ttpci/av7110_ir.c b/drivers/media/dvb/ttpci/av7110_ir.c
new file mode 100644
index 00000000..908f272f
--- /dev/null
+++ b/drivers/media/dvb/ttpci/av7110_ir.c
@@ -0,0 +1,415 @@
+/*
+ * Driver for the remote control of SAA7146 based AV7110 cards
+ *
+ * Copyright (C) 1999-2003 Holger Waechtler <holger@convergence.de>
+ * Copyright (C) 2003-2007 Oliver Endriss <o.endriss@gmx.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.
+ * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
+ *
+ */
+
+
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/proc_fs.h>
+#include <linux/kernel.h>
+#include <linux/bitops.h>
+
+#include "av7110.h"
+#include "av7110_hw.h"
+
+
+#define AV_CNT		4
+
+#define IR_RC5		0
+#define IR_RCMM		1
+#define IR_RC5_EXT	2 /* internal only */
+
+#define IR_ALL		0xffffffff
+
+#define UP_TIMEOUT	(HZ*7/25)
+
+
+/* Note: enable ir debugging by or'ing debug with 16 */
+
+static int ir_protocol[AV_CNT] = { IR_RCMM, IR_RCMM, IR_RCMM, IR_RCMM};
+module_param_array(ir_protocol, int, NULL, 0644);
+MODULE_PARM_DESC(ir_protocol, "Infrared protocol: 0 RC5, 1 RCMM (default)");
+
+static int ir_inversion[AV_CNT];
+module_param_array(ir_inversion, int, NULL, 0644);
+MODULE_PARM_DESC(ir_inversion, "Inversion of infrared signal: 0 not inverted (default), 1 inverted");
+
+static uint ir_device_mask[AV_CNT] = { IR_ALL, IR_ALL, IR_ALL, IR_ALL };
+module_param_array(ir_device_mask, uint, NULL, 0644);
+MODULE_PARM_DESC(ir_device_mask, "Bitmask of infrared devices: bit 0..31 = device 0..31 (default: all)");
+
+
+static int av_cnt;
+static struct av7110 *av_list[AV_CNT];
+
+static u16 default_key_map [256] = {
+	KEY_0, KEY_1, KEY_2, KEY_3, KEY_4, KEY_5, KEY_6, KEY_7,
+	KEY_8, KEY_9, KEY_BACK, 0, KEY_POWER, KEY_MUTE, 0, KEY_INFO,
+	KEY_VOLUMEUP, KEY_VOLUMEDOWN, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	KEY_CHANNELUP, KEY_CHANNELDOWN, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, KEY_TEXT, 0, 0, KEY_TV, 0, 0, 0, 0, 0, KEY_SETUP, 0, 0,
+	0, 0, 0, KEY_SUBTITLE, 0, 0, KEY_LANGUAGE, 0,
+	KEY_RADIO, 0, 0, 0, 0, KEY_EXIT, 0, 0,
+	KEY_UP, KEY_DOWN, KEY_LEFT, KEY_RIGHT, KEY_OK, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_RED, KEY_GREEN, KEY_YELLOW,
+	KEY_BLUE, 0, 0, 0, 0, 0, 0, 0, KEY_MENU, KEY_LIST, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, KEY_UP, KEY_UP, KEY_DOWN, KEY_DOWN,
+	0, 0, 0, 0, KEY_EPG, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_VCR
+};
+
+
+/* key-up timer */
+static void av7110_emit_keyup(unsigned long parm)
+{
+	struct infrared *ir = (struct infrared *) parm;
+
+	if (!ir || !test_bit(ir->last_key, ir->input_dev->key))
+		return;
+
+	input_report_key(ir->input_dev, ir->last_key, 0);
+	input_sync(ir->input_dev);
+}
+
+
+/* tasklet */
+static void av7110_emit_key(unsigned long parm)
+{
+	struct infrared *ir = (struct infrared *) parm;
+	u32 ircom = ir->ir_command;
+	u8 data;
+	u8 addr;
+	u16 toggle;
+	u16 keycode;
+
+	/* extract device address and data */
+	switch (ir->protocol) {
+	case IR_RC5: /* RC5: 5 bits device address, 6 bits data */
+		data = ircom & 0x3f;
+		addr = (ircom >> 6) & 0x1f;
+		toggle = ircom & 0x0800;
+		break;
+
+	case IR_RCMM: /* RCMM: ? bits device address, ? bits data */
+		data = ircom & 0xff;
+		addr = (ircom >> 8) & 0x1f;
+		toggle = ircom & 0x8000;
+		break;
+
+	case IR_RC5_EXT: /* extended RC5: 5 bits device address, 7 bits data */
+		data = ircom & 0x3f;
+		addr = (ircom >> 6) & 0x1f;
+		/* invert 7th data bit for backward compatibility with RC5 keymaps */
+		if (!(ircom & 0x1000))
+			data |= 0x40;
+		toggle = ircom & 0x0800;
+		break;
+
+	default:
+		printk("%s invalid protocol %x\n", __func__, ir->protocol);
+		return;
+	}
+
+	input_event(ir->input_dev, EV_MSC, MSC_RAW, (addr << 16) | data);
+	input_event(ir->input_dev, EV_MSC, MSC_SCAN, data);
+
+	keycode = ir->key_map[data];
+
+	dprintk(16, "%s: code %08x -> addr %i data 0x%02x -> keycode %i\n",
+		__func__, ircom, addr, data, keycode);
+
+	/* check device address */
+	if (!(ir->device_mask & (1 << addr)))
+		return;
+
+	if (!keycode) {
+		printk ("%s: code %08x -> addr %i data 0x%02x -> unknown key!\n",
+			__func__, ircom, addr, data);
+		return;
+	}
+
+	if (timer_pending(&ir->keyup_timer)) {
+		del_timer(&ir->keyup_timer);
+		if (ir->last_key != keycode || toggle != ir->last_toggle) {
+			ir->delay_timer_finished = 0;
+			input_event(ir->input_dev, EV_KEY, ir->last_key, 0);
+			input_event(ir->input_dev, EV_KEY, keycode, 1);
+			input_sync(ir->input_dev);
+		} else if (ir->delay_timer_finished) {
+			input_event(ir->input_dev, EV_KEY, keycode, 2);
+			input_sync(ir->input_dev);
+		}
+	} else {
+		ir->delay_timer_finished = 0;
+		input_event(ir->input_dev, EV_KEY, keycode, 1);
+		input_sync(ir->input_dev);
+	}
+
+	ir->last_key = keycode;
+	ir->last_toggle = toggle;
+
+	ir->keyup_timer.expires = jiffies + UP_TIMEOUT;
+	add_timer(&ir->keyup_timer);
+
+}
+
+
+/* register with input layer */
+static void input_register_keys(struct infrared *ir)
+{
+	int i;
+
+	set_bit(EV_KEY, ir->input_dev->evbit);
+	set_bit(EV_REP, ir->input_dev->evbit);
+	set_bit(EV_MSC, ir->input_dev->evbit);
+
+	set_bit(MSC_RAW, ir->input_dev->mscbit);
+	set_bit(MSC_SCAN, ir->input_dev->mscbit);
+
+	memset(ir->input_dev->keybit, 0, sizeof(ir->input_dev->keybit));
+
+	for (i = 0; i < ARRAY_SIZE(ir->key_map); i++) {
+		if (ir->key_map[i] > KEY_MAX)
+			ir->key_map[i] = 0;
+		else if (ir->key_map[i] > KEY_RESERVED)
+			set_bit(ir->key_map[i], ir->input_dev->keybit);
+	}
+
+	ir->input_dev->keycode = ir->key_map;
+	ir->input_dev->keycodesize = sizeof(ir->key_map[0]);
+	ir->input_dev->keycodemax = ARRAY_SIZE(ir->key_map);
+}
+
+
+/* called by the input driver after rep[REP_DELAY] ms */
+static void input_repeat_key(unsigned long parm)
+{
+	struct infrared *ir = (struct infrared *) parm;
+
+	ir->delay_timer_finished = 1;
+}
+
+
+/* check for configuration changes */
+int av7110_check_ir_config(struct av7110 *av7110, int force)
+{
+	int i;
+	int modified = force;
+	int ret = -ENODEV;
+
+	for (i = 0; i < av_cnt; i++)
+		if (av7110 == av_list[i])
+			break;
+
+	if (i < av_cnt && av7110) {
+		if ((av7110->ir.protocol & 1) != ir_protocol[i] ||
+		    av7110->ir.inversion != ir_inversion[i])
+			modified = true;
+
+		if (modified) {
+			/* protocol */
+			if (ir_protocol[i]) {
+				ir_protocol[i] = 1;
+				av7110->ir.protocol = IR_RCMM;
+				av7110->ir.ir_config = 0x0001;
+			} else if (FW_VERSION(av7110->arm_app) >= 0x2620) {
+				av7110->ir.protocol = IR_RC5_EXT;
+				av7110->ir.ir_config = 0x0002;
+			} else {
+				av7110->ir.protocol = IR_RC5;
+				av7110->ir.ir_config = 0x0000;
+			}
+			/* inversion */
+			if (ir_inversion[i]) {
+				ir_inversion[i] = 1;
+				av7110->ir.ir_config |= 0x8000;
+			}
+			av7110->ir.inversion = ir_inversion[i];
+			/* update ARM */
+			ret = av7110_fw_cmd(av7110, COMTYPE_PIDFILTER, SetIR, 1,
+						av7110->ir.ir_config);
+		} else
+			ret = 0;
+
+		/* address */
+		if (av7110->ir.device_mask != ir_device_mask[i])
+			av7110->ir.device_mask = ir_device_mask[i];
+	}
+
+	return ret;
+}
+
+
+/* /proc/av7110_ir interface */
+static ssize_t av7110_ir_proc_write(struct file *file, const char __user *buffer,
+				    size_t count, loff_t *pos)
+{
+	char *page;
+	u32 ir_config;
+	int size = sizeof ir_config + sizeof av_list[0]->ir.key_map;
+	int i;
+
+	if (count < size)
+		return -EINVAL;
+
+	page = vmalloc(size);
+	if (!page)
+		return -ENOMEM;
+
+	if (copy_from_user(page, buffer, size)) {
+		vfree(page);
+		return -EFAULT;
+	}
+
+	memcpy(&ir_config, page, sizeof ir_config);
+
+	for (i = 0; i < av_cnt; i++) {
+		/* keymap */
+		memcpy(av_list[i]->ir.key_map, page + sizeof ir_config,
+			sizeof(av_list[i]->ir.key_map));
+		/* protocol, inversion, address */
+		ir_protocol[i] = ir_config & 0x0001;
+		ir_inversion[i] = ir_config & 0x8000 ? 1 : 0;
+		if (ir_config & 0x4000)
+			ir_device_mask[i] = 1 << ((ir_config >> 16) & 0x1f);
+		else
+			ir_device_mask[i] = IR_ALL;
+		/* update configuration */
+		av7110_check_ir_config(av_list[i], false);
+		input_register_keys(&av_list[i]->ir);
+	}
+	vfree(page);
+	return count;
+}
+
+static const struct file_operations av7110_ir_proc_fops = {
+	.owner		= THIS_MODULE,
+	.write		= av7110_ir_proc_write,
+	.llseek		= noop_llseek,
+};
+
+/* interrupt handler */
+static void ir_handler(struct av7110 *av7110, u32 ircom)
+{
+	dprintk(4, "ir command = %08x\n", ircom);
+	av7110->ir.ir_command = ircom;
+	tasklet_schedule(&av7110->ir.ir_tasklet);
+}
+
+
+int __devinit av7110_ir_init(struct av7110 *av7110)
+{
+	struct input_dev *input_dev;
+	static struct proc_dir_entry *e;
+	int err;
+
+	if (av_cnt >= ARRAY_SIZE(av_list))
+		return -ENOSPC;
+
+	av_list[av_cnt++] = av7110;
+	av7110_check_ir_config(av7110, true);
+
+	init_timer(&av7110->ir.keyup_timer);
+	av7110->ir.keyup_timer.function = av7110_emit_keyup;
+	av7110->ir.keyup_timer.data = (unsigned long) &av7110->ir;
+
+	input_dev = input_allocate_device();
+	if (!input_dev)
+		return -ENOMEM;
+
+	av7110->ir.input_dev = input_dev;
+	snprintf(av7110->ir.input_phys, sizeof(av7110->ir.input_phys),
+		"pci-%s/ir0", pci_name(av7110->dev->pci));
+
+	input_dev->name = "DVB on-card IR receiver";
+
+	input_dev->phys = av7110->ir.input_phys;
+	input_dev->id.bustype = BUS_PCI;
+	input_dev->id.version = 2;
+	if (av7110->dev->pci->subsystem_vendor) {
+		input_dev->id.vendor = av7110->dev->pci->subsystem_vendor;
+		input_dev->id.product = av7110->dev->pci->subsystem_device;
+	} else {
+		input_dev->id.vendor = av7110->dev->pci->vendor;
+		input_dev->id.product = av7110->dev->pci->device;
+	}
+	input_dev->dev.parent = &av7110->dev->pci->dev;
+	/* initial keymap */
+	memcpy(av7110->ir.key_map, default_key_map, sizeof av7110->ir.key_map);
+	input_register_keys(&av7110->ir);
+	err = input_register_device(input_dev);
+	if (err) {
+		input_free_device(input_dev);
+		return err;
+	}
+	input_dev->timer.function = input_repeat_key;
+	input_dev->timer.data = (unsigned long) &av7110->ir;
+
+	if (av_cnt == 1) {
+		e = proc_create("av7110_ir", S_IWUSR, NULL, &av7110_ir_proc_fops);
+		if (e)
+			e->size = 4 + 256 * sizeof(u16);
+	}
+
+	tasklet_init(&av7110->ir.ir_tasklet, av7110_emit_key, (unsigned long) &av7110->ir);
+	av7110->ir.ir_handler = ir_handler;
+
+	return 0;
+}
+
+
+void __devexit av7110_ir_exit(struct av7110 *av7110)
+{
+	int i;
+
+	if (av_cnt == 0)
+		return;
+
+	del_timer_sync(&av7110->ir.keyup_timer);
+	av7110->ir.ir_handler = NULL;
+	tasklet_kill(&av7110->ir.ir_tasklet);
+
+	for (i = 0; i < av_cnt; i++)
+		if (av_list[i] == av7110) {
+			av_list[i] = av_list[av_cnt-1];
+			av_list[av_cnt-1] = NULL;
+			break;
+		}
+
+	if (av_cnt == 1)
+		remove_proc_entry("av7110_ir", NULL);
+
+	input_unregister_device(av7110->ir.input_dev);
+
+	av_cnt--;
+}
+
+//MODULE_AUTHOR("Holger Waechtler <holger@convergence.de>, Oliver Endriss <o.endriss@gmx.de>");
+//MODULE_LICENSE("GPL");