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path: root/drivers/media/video/ir-kbd-i2c.c
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Diffstat (limited to 'drivers/media/video/ir-kbd-i2c.c')
-rw-r--r--drivers/media/video/ir-kbd-i2c.c489
1 files changed, 0 insertions, 489 deletions
diff --git a/drivers/media/video/ir-kbd-i2c.c b/drivers/media/video/ir-kbd-i2c.c
deleted file mode 100644
index 04f192a0398a..000000000000
--- a/drivers/media/video/ir-kbd-i2c.c
+++ /dev/null
@@ -1,489 +0,0 @@
-/*
- *
- * 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>
- * modified for em2820 based USB TV tuners by
- * Markus Rechberger <mrechberger@gmail.com>
- * modified for DViCO Fusion HDTV 5 RT GOLD by
- * Chaogui Zhang <czhang1974@gmail.com>
- * modified for MSI TV@nywhere Plus by
- * Henry Wong <henry@stuffedcow.net>
- * Mark Schultz <n9xmj@yahoo.com>
- * Brian Rogers <brian_rogers@comcast.net>
- * modified for AVerMedia Cardbus by
- * Oldrich Jedlicka <oldium.pro@seznam.cz>
- *
- * 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/init.h>
-#include <linux/kernel.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 <media/rc-core.h>
-#include <media/ir-kbd-i2c.h>
-
-/* ----------------------------------------------------------------------- */
-/* insmod parameters */
-
-static int debug;
-module_param(debug, int, 0644); /* debug level (0,1,2) */
-
-
-#define MODULE_NAME "ir-kbd-i2c"
-#define dprintk(level, fmt, arg...) if (debug >= level) \
- printk(KERN_DEBUG MODULE_NAME ": " fmt , ## arg)
-
-/* ----------------------------------------------------------------------- */
-
-static int get_key_haup_common(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw,
- int size, int offset)
-{
- unsigned char buf[6];
- int start, range, toggle, dev, code, ircode;
-
- /* poll IR chip */
- if (size != i2c_master_recv(ir->c, buf, size))
- return -EIO;
-
- /* split rc5 data block ... */
- start = (buf[offset] >> 7) & 1;
- range = (buf[offset] >> 6) & 1;
- toggle = (buf[offset] >> 5) & 1;
- dev = buf[offset] & 0x1f;
- code = (buf[offset+1] >> 2) & 0x3f;
-
- /* rc5 has two start bits
- * the first bit must be one
- * the second bit defines the command range (1 = 0-63, 0 = 64 - 127)
- */
- if (!start)
- /* no key pressed */
- return 0;
- /*
- * Hauppauge remotes (black/silver) always use
- * specific device ids. If we do not filter the
- * device ids then messages destined for devices
- * such as TVs (id=0) will get through causing
- * mis-fired events.
- *
- * We also filter out invalid key presses which
- * produce annoying debug log entries.
- */
- ircode= (start << 12) | (toggle << 11) | (dev << 6) | code;
- if ((ircode & 0x1fff)==0x1fff)
- /* invalid key press */
- return 0;
-
- if (!range)
- code += 64;
-
- dprintk(1,"ir hauppauge (rc5): s%d r%d t%d dev=%d code=%d\n",
- start, range, toggle, dev, code);
-
- /* return key */
- *ir_key = (dev << 8) | code;
- *ir_raw = ircode;
- return 1;
-}
-
-static int get_key_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
-{
- return get_key_haup_common (ir, ir_key, ir_raw, 3, 0);
-}
-
-static int get_key_haup_xvr(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
-{
- int ret;
- unsigned char buf[1] = { 0 };
-
- /*
- * This is the same apparent "are you ready?" poll command observed
- * watching Windows driver traffic and implemented in lirc_zilog. With
- * this added, we get far saner remote behavior with z8 chips on usb
- * connected devices, even with the default polling interval of 100ms.
- */
- ret = i2c_master_send(ir->c, buf, 1);
- if (ret != 1)
- return (ret < 0) ? ret : -EINVAL;
-
- return get_key_haup_common (ir, ir_key, ir_raw, 6, 3);
-}
-
-static int get_key_pixelview(struct IR_i2c *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_fusionhdtv(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
-{
- unsigned char buf[4];
-
- /* poll IR chip */
- if (4 != i2c_master_recv(ir->c, buf, 4)) {
- dprintk(1,"read error\n");
- return -EIO;
- }
-
- if(buf[0] !=0 || buf[1] !=0 || buf[2] !=0 || buf[3] != 0)
- dprintk(2, "%s: 0x%2x 0x%2x 0x%2x 0x%2x\n", __func__,
- buf[0], buf[1], buf[2], buf[3]);
-
- /* no key pressed or signal from other ir remote */
- if(buf[0] != 0x1 || buf[1] != 0xfe)
- return 0;
-
- *ir_key = buf[2];
- *ir_raw = (buf[2] << 8) | buf[3];
-
- return 1;
-}
-
-static int get_key_knc1(struct IR_i2c *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_avermedia_cardbus(struct IR_i2c *ir,
- u32 *ir_key, u32 *ir_raw)
-{
- unsigned char subaddr, key, keygroup;
- struct i2c_msg msg[] = { { .addr = ir->c->addr, .flags = 0,
- .buf = &subaddr, .len = 1},
- { .addr = ir->c->addr, .flags = I2C_M_RD,
- .buf = &key, .len = 1} };
- subaddr = 0x0d;
- if (2 != i2c_transfer(ir->c->adapter, msg, 2)) {
- dprintk(1, "read error\n");
- return -EIO;
- }
-
- if (key == 0xff)
- return 0;
-
- subaddr = 0x0b;
- msg[1].buf = &keygroup;
- if (2 != i2c_transfer(ir->c->adapter, msg, 2)) {
- dprintk(1, "read error\n");
- return -EIO;
- }
-
- if (keygroup == 0xff)
- return 0;
-
- dprintk(1, "read key 0x%02x/0x%02x\n", key, keygroup);
- if (keygroup < 2 || keygroup > 3) {
- /* Only a warning */
- dprintk(1, "warning: invalid key group 0x%02x for key 0x%02x\n",
- keygroup, key);
- }
- key |= (keygroup & 1) << 6;
-
- *ir_key = key;
- *ir_raw = key;
- return 1;
-}
-
-/* ----------------------------------------------------------------------- */
-
-static int ir_key_poll(struct IR_i2c *ir)
-{
- static u32 ir_key, ir_raw;
- int rc;
-
- dprintk(3, "%s\n", __func__);
- rc = ir->get_key(ir, &ir_key, &ir_raw);
- if (rc < 0) {
- dprintk(2,"error\n");
- return rc;
- }
-
- if (rc) {
- dprintk(1, "%s: keycode = 0x%04x\n", __func__, ir_key);
- rc_keydown(ir->rc, ir_key, 0);
- }
- return 0;
-}
-
-static void ir_work(struct work_struct *work)
-{
- int rc;
- struct IR_i2c *ir = container_of(work, struct IR_i2c, work.work);
-
- rc = ir_key_poll(ir);
- if (rc == -ENODEV) {
- rc_unregister_device(ir->rc);
- ir->rc = NULL;
- return;
- }
-
- schedule_delayed_work(&ir->work, msecs_to_jiffies(ir->polling_interval));
-}
-
-/* ----------------------------------------------------------------------- */
-
-static int ir_probe(struct i2c_client *client, const struct i2c_device_id *id)
-{
- char *ir_codes = NULL;
- const char *name = NULL;
- u64 rc_type = RC_TYPE_UNKNOWN;
- struct IR_i2c *ir;
- struct rc_dev *rc = NULL;
- struct i2c_adapter *adap = client->adapter;
- unsigned short addr = client->addr;
- int err;
-
- ir = kzalloc(sizeof(struct IR_i2c), GFP_KERNEL);
- if (!ir)
- return -ENOMEM;
-
- ir->c = client;
- ir->polling_interval = DEFAULT_POLLING_INTERVAL;
- i2c_set_clientdata(client, ir);
-
- switch(addr) {
- case 0x64:
- name = "Pixelview";
- ir->get_key = get_key_pixelview;
- rc_type = RC_TYPE_OTHER;
- ir_codes = RC_MAP_EMPTY;
- break;
- case 0x18:
- case 0x1f:
- case 0x1a:
- name = "Hauppauge";
- ir->get_key = get_key_haup;
- rc_type = RC_TYPE_RC5;
- ir_codes = RC_MAP_HAUPPAUGE;
- break;
- case 0x30:
- name = "KNC One";
- ir->get_key = get_key_knc1;
- rc_type = RC_TYPE_OTHER;
- ir_codes = RC_MAP_EMPTY;
- break;
- case 0x6b:
- name = "FusionHDTV";
- ir->get_key = get_key_fusionhdtv;
- rc_type = RC_TYPE_RC5;
- ir_codes = RC_MAP_FUSIONHDTV_MCE;
- break;
- case 0x40:
- name = "AVerMedia Cardbus remote";
- ir->get_key = get_key_avermedia_cardbus;
- rc_type = RC_TYPE_OTHER;
- ir_codes = RC_MAP_AVERMEDIA_CARDBUS;
- break;
- case 0x71:
- name = "Hauppauge/Zilog Z8";
- ir->get_key = get_key_haup_xvr;
- rc_type = RC_TYPE_RC5;
- ir_codes = RC_MAP_HAUPPAUGE;
- break;
- }
-
- /* Let the caller override settings */
- if (client->dev.platform_data) {
- const struct IR_i2c_init_data *init_data =
- client->dev.platform_data;
-
- ir_codes = init_data->ir_codes;
- rc = init_data->rc_dev;
-
- name = init_data->name;
- if (init_data->type)
- rc_type = init_data->type;
-
- if (init_data->polling_interval)
- ir->polling_interval = init_data->polling_interval;
-
- switch (init_data->internal_get_key_func) {
- case IR_KBD_GET_KEY_CUSTOM:
- /* The bridge driver provided us its own function */
- ir->get_key = init_data->get_key;
- break;
- case IR_KBD_GET_KEY_PIXELVIEW:
- ir->get_key = get_key_pixelview;
- break;
- case IR_KBD_GET_KEY_HAUP:
- ir->get_key = get_key_haup;
- break;
- case IR_KBD_GET_KEY_KNC1:
- ir->get_key = get_key_knc1;
- break;
- case IR_KBD_GET_KEY_FUSIONHDTV:
- ir->get_key = get_key_fusionhdtv;
- break;
- case IR_KBD_GET_KEY_HAUP_XVR:
- ir->get_key = get_key_haup_xvr;
- break;
- case IR_KBD_GET_KEY_AVERMEDIA_CARDBUS:
- ir->get_key = get_key_avermedia_cardbus;
- break;
- }
- }
-
- if (!rc) {
- /*
- * If platform_data doesn't specify rc_dev, initilize it
- * internally
- */
- rc = rc_allocate_device();
- if (!rc) {
- err = -ENOMEM;
- goto err_out_free;
- }
- }
- ir->rc = rc;
-
- /* Make sure we are all setup before going on */
- if (!name || !ir->get_key || !rc_type || !ir_codes) {
- dprintk(1, ": Unsupported device at address 0x%02x\n",
- addr);
- err = -ENODEV;
- goto err_out_free;
- }
-
- /* Sets name */
- snprintf(ir->name, sizeof(ir->name), "i2c IR (%s)", name);
- ir->ir_codes = ir_codes;
-
- snprintf(ir->phys, sizeof(ir->phys), "%s/%s/ir0",
- dev_name(&adap->dev),
- dev_name(&client->dev));
-
- /*
- * Initialize input_dev fields
- * It doesn't make sense to allow overriding them via platform_data
- */
- rc->input_id.bustype = BUS_I2C;
- rc->input_phys = ir->phys;
- rc->input_name = ir->name;
-
- /*
- * Initialize the other fields of rc_dev
- */
- rc->map_name = ir->ir_codes;
- rc->allowed_protos = rc_type;
- if (!rc->driver_name)
- rc->driver_name = MODULE_NAME;
-
- err = rc_register_device(rc);
- if (err)
- goto err_out_free;
-
- printk(MODULE_NAME ": %s detected at %s [%s]\n",
- ir->name, ir->phys, adap->name);
-
- /* start polling via eventd */
- INIT_DELAYED_WORK(&ir->work, ir_work);
- schedule_delayed_work(&ir->work, 0);
-
- return 0;
-
- err_out_free:
- /* Only frees rc if it were allocated internally */
- rc_free_device(rc);
- kfree(ir);
- return err;
-}
-
-static int ir_remove(struct i2c_client *client)
-{
- struct IR_i2c *ir = i2c_get_clientdata(client);
-
- /* kill outstanding polls */
- cancel_delayed_work_sync(&ir->work);
-
- /* unregister device */
- if (ir->rc)
- rc_unregister_device(ir->rc);
-
- /* free memory */
- kfree(ir);
- return 0;
-}
-
-static const struct i2c_device_id ir_kbd_id[] = {
- /* Generic entry for any IR receiver */
- { "ir_video", 0 },
- /* IR device specific entries should be added here */
- { "ir_rx_z8f0811_haup", 0 },
- { "ir_rx_z8f0811_hdpvr", 0 },
- { }
-};
-
-static struct i2c_driver ir_kbd_driver = {
- .driver = {
- .name = "ir-kbd-i2c",
- },
- .probe = ir_probe,
- .remove = ir_remove,
- .id_table = ir_kbd_id,
-};
-
-module_i2c_driver(ir_kbd_driver);
-
-/* ----------------------------------------------------------------------- */
-
-MODULE_AUTHOR("Gerd Knorr, Michal Kochanowicz, Christoph Bartelmus, Ulrich Mueller");
-MODULE_DESCRIPTION("input driver for i2c IR remote controls");
-MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-11 06:06:11 +0000