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337 lines
8.9 KiB
337 lines
8.9 KiB
/*
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*
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* handle saa7134 IR remotes via linux kernel input layer.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/sched.h>
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#include <linux/interrupt.h>
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#include <linux/input.h>
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#include "saa7134-reg.h"
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#include "saa7134.h"
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static unsigned int disable_ir = 0;
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module_param(disable_ir, int, 0444);
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MODULE_PARM_DESC(disable_ir,"disable infrared remote support");
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static unsigned int ir_debug = 0;
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module_param(ir_debug, int, 0644);
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MODULE_PARM_DESC(ir_debug,"enable debug messages [IR]");
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#define dprintk(fmt, arg...) if (ir_debug) \
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printk(KERN_DEBUG "%s/ir: " fmt, dev->name , ## arg)
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#define i2cdprintk(fmt, arg...) if (ir_debug) \
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printk(KERN_DEBUG "%s/ir: " fmt, ir->c.name , ## arg)
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/* -------------------- GPIO generic keycode builder -------------------- */
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static int build_key(struct saa7134_dev *dev)
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{
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struct saa7134_ir *ir = dev->remote;
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u32 gpio, data;
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/* rising SAA7134_GPIO_GPRESCAN reads the status */
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saa_clearb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
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saa_setb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
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gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
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if (ir->polling) {
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if (ir->last_gpio == gpio)
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return 0;
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ir->last_gpio = gpio;
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}
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data = ir_extract_bits(gpio, ir->mask_keycode);
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dprintk("build_key gpio=0x%x mask=0x%x data=%d\n",
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gpio, ir->mask_keycode, data);
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if (ir->polling) {
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if ((ir->mask_keydown && (0 != (gpio & ir->mask_keydown))) ||
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(ir->mask_keyup && (0 == (gpio & ir->mask_keyup)))) {
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ir_input_keydown(ir->dev, &ir->ir, data, data);
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} else {
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ir_input_nokey(ir->dev, &ir->ir);
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}
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}
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else { /* IRQ driven mode - handle key press and release in one go */
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if ((ir->mask_keydown && (0 != (gpio & ir->mask_keydown))) ||
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(ir->mask_keyup && (0 == (gpio & ir->mask_keyup)))) {
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ir_input_keydown(ir->dev, &ir->ir, data, data);
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ir_input_nokey(ir->dev, &ir->ir);
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}
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}
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return 0;
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}
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/* --------------------- Chip specific I2C key builders ----------------- */
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static int get_key_purpletv(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
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{
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unsigned char b;
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/* poll IR chip */
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if (1 != i2c_master_recv(&ir->c,&b,1)) {
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i2cdprintk("read error\n");
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return -EIO;
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}
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/* no button press */
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if (b==0)
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return 0;
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/* repeating */
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if (b & 0x80)
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return 1;
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*ir_key = b;
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*ir_raw = b;
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return 1;
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}
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void saa7134_input_irq(struct saa7134_dev *dev)
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{
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struct saa7134_ir *ir = dev->remote;
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if (!ir->polling)
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build_key(dev);
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}
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static void saa7134_input_timer(unsigned long data)
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{
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struct saa7134_dev *dev = (struct saa7134_dev*)data;
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struct saa7134_ir *ir = dev->remote;
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unsigned long timeout;
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build_key(dev);
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timeout = jiffies + (ir->polling * HZ / 1000);
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mod_timer(&ir->timer, timeout);
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}
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int saa7134_input_init1(struct saa7134_dev *dev)
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{
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struct saa7134_ir *ir;
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struct input_dev *input_dev;
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IR_KEYTAB_TYPE *ir_codes = NULL;
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u32 mask_keycode = 0;
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u32 mask_keydown = 0;
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u32 mask_keyup = 0;
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int polling = 0;
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int ir_type = IR_TYPE_OTHER;
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if (dev->has_remote != SAA7134_REMOTE_GPIO)
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return -ENODEV;
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if (disable_ir)
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return -ENODEV;
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/* detect & configure */
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switch (dev->board) {
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case SAA7134_BOARD_FLYVIDEO2000:
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case SAA7134_BOARD_FLYVIDEO3000:
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case SAA7134_BOARD_FLYTVPLATINUM_FM:
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case SAA7134_BOARD_FLYTVPLATINUM_MINI2:
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ir_codes = ir_codes_flyvideo;
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mask_keycode = 0xEC00000;
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mask_keydown = 0x0040000;
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break;
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case SAA7134_BOARD_CINERGY400:
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case SAA7134_BOARD_CINERGY600:
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case SAA7134_BOARD_CINERGY600_MK3:
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ir_codes = ir_codes_cinergy;
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mask_keycode = 0x00003f;
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mask_keyup = 0x040000;
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break;
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case SAA7134_BOARD_ECS_TVP3XP:
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case SAA7134_BOARD_ECS_TVP3XP_4CB5:
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ir_codes = ir_codes_eztv;
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mask_keycode = 0x00017c;
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mask_keyup = 0x000002;
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polling = 50; // ms
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break;
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case SAA7134_BOARD_KWORLD_XPERT:
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case SAA7134_BOARD_AVACSSMARTTV:
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ir_codes = ir_codes_pixelview;
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mask_keycode = 0x00001F;
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mask_keyup = 0x000020;
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polling = 50; // ms
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break;
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case SAA7134_BOARD_MD2819:
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case SAA7134_BOARD_KWORLD_VSTREAM_XPERT:
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case SAA7134_BOARD_AVERMEDIA_305:
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case SAA7134_BOARD_AVERMEDIA_307:
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case SAA7134_BOARD_AVERMEDIA_STUDIO_305:
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case SAA7134_BOARD_AVERMEDIA_STUDIO_307:
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case SAA7134_BOARD_AVERMEDIA_GO_007_FM:
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ir_codes = ir_codes_avermedia;
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mask_keycode = 0x0007C8;
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mask_keydown = 0x000010;
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polling = 50; // ms
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/* Set GPIO pin2 to high to enable the IR controller */
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saa_setb(SAA7134_GPIO_GPMODE0, 0x4);
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saa_setb(SAA7134_GPIO_GPSTATUS0, 0x4);
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break;
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case SAA7134_BOARD_KWORLD_TERMINATOR:
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ir_codes = ir_codes_pixelview;
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mask_keycode = 0x00001f;
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mask_keyup = 0x000060;
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polling = 50; // ms
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break;
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case SAA7134_BOARD_MANLI_MTV001:
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case SAA7134_BOARD_MANLI_MTV002:
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case SAA7134_BOARD_BEHOLD_409FM:
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ir_codes = ir_codes_manli;
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mask_keycode = 0x001f00;
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mask_keyup = 0x004000;
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polling = 50; // ms
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break;
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case SAA7134_BOARD_SEDNA_PC_TV_CARDBUS:
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ir_codes = ir_codes_pctv_sedna;
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mask_keycode = 0x001f00;
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mask_keyup = 0x004000;
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polling = 50; // ms
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break;
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case SAA7134_BOARD_GOTVIEW_7135:
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ir_codes = ir_codes_gotview7135;
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mask_keycode = 0x0003EC;
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mask_keyup = 0x008000;
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mask_keydown = 0x000010;
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polling = 50; // ms
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break;
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case SAA7134_BOARD_VIDEOMATE_TV_PVR:
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case SAA7134_BOARD_VIDEOMATE_GOLD_PLUS:
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case SAA7134_BOARD_VIDEOMATE_TV_GOLD_PLUSII:
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ir_codes = ir_codes_videomate_tv_pvr;
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mask_keycode = 0x00003F;
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mask_keyup = 0x400000;
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polling = 50; // ms
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break;
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case SAA7134_BOARD_VIDEOMATE_DVBT_300:
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case SAA7134_BOARD_VIDEOMATE_DVBT_200:
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ir_codes = ir_codes_videomate_tv_pvr;
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mask_keycode = 0x003F00;
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mask_keyup = 0x040000;
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break;
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case SAA7134_BOARD_FLYDVBT_LR301:
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case SAA7134_BOARD_FLYDVBTDUO:
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ir_codes = ir_codes_flydvb;
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mask_keycode = 0x0001F00;
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mask_keydown = 0x0040000;
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break;
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}
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if (NULL == ir_codes) {
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printk("%s: Oops: IR config error [card=%d]\n",
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dev->name, dev->board);
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return -ENODEV;
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}
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ir = kzalloc(sizeof(*ir), GFP_KERNEL);
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input_dev = input_allocate_device();
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if (!ir || !input_dev) {
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kfree(ir);
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input_free_device(input_dev);
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return -ENOMEM;
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}
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ir->dev = input_dev;
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/* init hardware-specific stuff */
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ir->mask_keycode = mask_keycode;
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ir->mask_keydown = mask_keydown;
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ir->mask_keyup = mask_keyup;
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ir->polling = polling;
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/* init input device */
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snprintf(ir->name, sizeof(ir->name), "saa7134 IR (%s)",
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saa7134_boards[dev->board].name);
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snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
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pci_name(dev->pci));
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ir_input_init(input_dev, &ir->ir, ir_type, ir_codes);
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input_dev->name = ir->name;
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input_dev->phys = ir->phys;
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input_dev->id.bustype = BUS_PCI;
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input_dev->id.version = 1;
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if (dev->pci->subsystem_vendor) {
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input_dev->id.vendor = dev->pci->subsystem_vendor;
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input_dev->id.product = dev->pci->subsystem_device;
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} else {
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input_dev->id.vendor = dev->pci->vendor;
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input_dev->id.product = dev->pci->device;
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}
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input_dev->cdev.dev = &dev->pci->dev;
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/* all done */
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dev->remote = ir;
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if (ir->polling) {
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init_timer(&ir->timer);
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ir->timer.function = saa7134_input_timer;
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ir->timer.data = (unsigned long)dev;
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ir->timer.expires = jiffies + HZ;
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add_timer(&ir->timer);
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}
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input_register_device(ir->dev);
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return 0;
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}
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void saa7134_input_fini(struct saa7134_dev *dev)
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{
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if (NULL == dev->remote)
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return;
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if (dev->remote->polling)
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del_timer_sync(&dev->remote->timer);
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input_unregister_device(dev->remote->dev);
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kfree(dev->remote);
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dev->remote = NULL;
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}
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void saa7134_set_i2c_ir(struct saa7134_dev *dev, struct IR_i2c *ir)
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{
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if (disable_ir) {
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dprintk("Found supported i2c remote, but IR has been disabled\n");
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ir->get_key=NULL;
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return;
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}
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switch (dev->board) {
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case SAA7134_BOARD_PINNACLE_PCTV_110i:
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snprintf(ir->c.name, sizeof(ir->c.name), "Pinnacle PCTV");
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ir->get_key = get_key_pinnacle;
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ir->ir_codes = ir_codes_pinnacle;
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break;
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case SAA7134_BOARD_UPMOST_PURPLE_TV:
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snprintf(ir->c.name, sizeof(ir->c.name), "Purple TV");
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ir->get_key = get_key_purpletv;
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ir->ir_codes = ir_codes_purpletv;
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break;
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default:
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dprintk("Shouldn't get here: Unknown board %x for I2C IR?\n",dev->board);
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break;
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}
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}
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/* ----------------------------------------------------------------------
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* Local variables:
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* c-basic-offset: 8
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* End:
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*/
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