diff options
author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-08-14 23:23:43 +0400 |
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committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-08-15 23:42:14 +0400 |
commit | cb7a01ac324bf2ee2c666f37ac867e4135f9785a (patch) | |
tree | 7246b915a9334d4bc823c93ba9acab65ef882678 /drivers/media/video/ir-kbd-i2c.c | |
parent | f0af8fa4dad0839f844fd0633e1936493f6d685a (diff) | |
download | linux-cb7a01ac324bf2ee2c666f37ac867e4135f9785a.tar.xz |
[media] move i2c files into drivers/media/i2c
Move ancillary I2C drivers into drivers/media/i2c, in order to
better organize them.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/ir-kbd-i2c.c')
-rw-r--r-- | drivers/media/video/ir-kbd-i2c.c | 489 |
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"); |