528 lines
14 KiB
C
528 lines
14 KiB
C
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/*
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*
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* Device driver for GPIO attached remote control interfaces
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* on Conexant 2388x based TV/DVB cards.
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*
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* Copyright (c) 2003 Pavel Machek
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* Copyright (c) 2004 Gerd Knorr
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* Copyright (c) 2004, 2005 Chris Pascoe
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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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#include <linux/init.h>
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#include <linux/hrtimer.h>
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#include <linux/input.h>
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#include <linux/pci.h>
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#include <linux/module.h>
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#include "cx88.h"
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#include <media/ir-common.h>
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/* ---------------------------------------------------------------------- */
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struct cx88_IR {
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struct cx88_core *core;
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struct input_dev *input;
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struct ir_input_state ir;
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char name[32];
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char phys[32];
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/* sample from gpio pin 16 */
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u32 sampling;
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u32 samples[16];
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int scount;
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unsigned long release;
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/* poll external decoder */
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int polling;
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struct hrtimer timer;
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u32 gpio_addr;
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u32 last_gpio;
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u32 mask_keycode;
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u32 mask_keydown;
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u32 mask_keyup;
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};
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static int ir_debug;
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module_param(ir_debug, int, 0644); /* debug level [IR] */
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MODULE_PARM_DESC(ir_debug, "enable debug messages [IR]");
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#define ir_dprintk(fmt, arg...) if (ir_debug) \
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printk(KERN_DEBUG "%s IR: " fmt , ir->core->name , ##arg)
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/* ---------------------------------------------------------------------- */
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static void cx88_ir_handle_key(struct cx88_IR *ir)
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{
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struct cx88_core *core = ir->core;
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u32 gpio, data, auxgpio;
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/* read gpio value */
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gpio = cx_read(ir->gpio_addr);
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switch (core->boardnr) {
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case CX88_BOARD_NPGTECH_REALTV_TOP10FM:
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/* This board apparently uses a combination of 2 GPIO
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to represent the keys. Additionally, the second GPIO
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can be used for parity.
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Example:
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for key "5"
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gpio = 0x758, auxgpio = 0xe5 or 0xf5
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for key "Power"
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gpio = 0x758, auxgpio = 0xed or 0xfd
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*/
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auxgpio = cx_read(MO_GP1_IO);
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/* Take out the parity part */
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gpio=(gpio & 0x7fd) + (auxgpio & 0xef);
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break;
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case CX88_BOARD_WINFAST_DTV1000:
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case CX88_BOARD_WINFAST_DTV1800H:
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case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL:
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gpio = (gpio & 0x6ff) | ((cx_read(MO_GP1_IO) << 8) & 0x900);
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auxgpio = gpio;
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break;
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default:
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auxgpio = gpio;
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}
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if (ir->polling) {
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if (ir->last_gpio == auxgpio)
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return;
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ir->last_gpio = auxgpio;
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}
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/* extract data */
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data = ir_extract_bits(gpio, ir->mask_keycode);
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ir_dprintk("irq gpio=0x%x code=%d | %s%s%s\n",
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gpio, data,
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ir->polling ? "poll" : "irq",
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(gpio & ir->mask_keydown) ? " down" : "",
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(gpio & ir->mask_keyup) ? " up" : "");
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if (ir->core->boardnr == CX88_BOARD_NORWOOD_MICRO) {
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u32 gpio_key = cx_read(MO_GP0_IO);
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data = (data << 4) | ((gpio_key & 0xf0) >> 4);
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ir_input_keydown(ir->input, &ir->ir, data, data);
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ir_input_nokey(ir->input, &ir->ir);
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} else if (ir->mask_keydown) {
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/* bit set on keydown */
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if (gpio & ir->mask_keydown) {
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ir_input_keydown(ir->input, &ir->ir, data, data);
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} else {
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ir_input_nokey(ir->input, &ir->ir);
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}
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} else if (ir->mask_keyup) {
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/* bit cleared on keydown */
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if (0 == (gpio & ir->mask_keyup)) {
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ir_input_keydown(ir->input, &ir->ir, data, data);
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} else {
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ir_input_nokey(ir->input, &ir->ir);
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}
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} else {
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/* can't distinguish keydown/up :-/ */
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ir_input_keydown(ir->input, &ir->ir, data, data);
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ir_input_nokey(ir->input, &ir->ir);
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}
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}
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static enum hrtimer_restart cx88_ir_work(struct hrtimer *timer)
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{
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unsigned long missed;
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struct cx88_IR *ir = container_of(timer, struct cx88_IR, timer);
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cx88_ir_handle_key(ir);
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missed = hrtimer_forward_now(&ir->timer,
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ktime_set(0, ir->polling * 1000000));
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if (missed > 1)
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ir_dprintk("Missed ticks %ld\n", missed - 1);
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return HRTIMER_RESTART;
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}
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void cx88_ir_start(struct cx88_core *core, struct cx88_IR *ir)
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{
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if (ir->polling) {
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hrtimer_init(&ir->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
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ir->timer.function = cx88_ir_work;
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hrtimer_start(&ir->timer,
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ktime_set(0, ir->polling * 1000000),
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HRTIMER_MODE_REL);
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}
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if (ir->sampling) {
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core->pci_irqmask |= PCI_INT_IR_SMPINT;
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cx_write(MO_DDS_IO, 0xa80a80); /* 4 kHz sample rate */
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cx_write(MO_DDSCFG_IO, 0x5); /* enable */
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}
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}
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void cx88_ir_stop(struct cx88_core *core, struct cx88_IR *ir)
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{
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if (ir->sampling) {
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cx_write(MO_DDSCFG_IO, 0x0);
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core->pci_irqmask &= ~PCI_INT_IR_SMPINT;
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}
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if (ir->polling)
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hrtimer_cancel(&ir->timer);
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}
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/* ---------------------------------------------------------------------- */
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int cx88_ir_init(struct cx88_core *core, struct pci_dev *pci)
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{
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struct cx88_IR *ir;
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struct input_dev *input_dev;
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struct ir_scancode_table *ir_codes = NULL;
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int ir_type = IR_TYPE_OTHER;
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int err = -ENOMEM;
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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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goto err_out_free;
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ir->input = input_dev;
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/* detect & configure */
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switch (core->boardnr) {
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case CX88_BOARD_DNTV_LIVE_DVB_T:
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case CX88_BOARD_KWORLD_DVB_T:
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case CX88_BOARD_KWORLD_DVB_T_CX22702:
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ir_codes = &ir_codes_dntv_live_dvb_t_table;
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ir->gpio_addr = MO_GP1_IO;
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ir->mask_keycode = 0x1f;
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ir->mask_keyup = 0x60;
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ir->polling = 50; /* ms */
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break;
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case CX88_BOARD_TERRATEC_CINERGY_1400_DVB_T1:
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ir_codes = &ir_codes_cinergy_1400_table;
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ir_type = IR_TYPE_PD;
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ir->sampling = 0xeb04; /* address */
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break;
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case CX88_BOARD_HAUPPAUGE:
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case CX88_BOARD_HAUPPAUGE_DVB_T1:
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case CX88_BOARD_HAUPPAUGE_NOVASE2_S1:
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case CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1:
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case CX88_BOARD_HAUPPAUGE_HVR1100:
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case CX88_BOARD_HAUPPAUGE_HVR3000:
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case CX88_BOARD_HAUPPAUGE_HVR4000:
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case CX88_BOARD_HAUPPAUGE_HVR4000LITE:
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case CX88_BOARD_PCHDTV_HD3000:
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case CX88_BOARD_PCHDTV_HD5500:
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case CX88_BOARD_HAUPPAUGE_IRONLY:
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ir_codes = &ir_codes_hauppauge_new_table;
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ir_type = IR_TYPE_RC5;
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ir->sampling = 1;
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break;
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case CX88_BOARD_WINFAST_DTV2000H:
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case CX88_BOARD_WINFAST_DTV2000H_J:
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case CX88_BOARD_WINFAST_DTV1800H:
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ir_codes = &ir_codes_winfast_table;
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ir->gpio_addr = MO_GP0_IO;
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ir->mask_keycode = 0x8f8;
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ir->mask_keyup = 0x100;
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ir->polling = 50; /* ms */
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break;
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case CX88_BOARD_WINFAST2000XP_EXPERT:
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case CX88_BOARD_WINFAST_DTV1000:
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case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL:
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ir_codes = &ir_codes_winfast_table;
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ir->gpio_addr = MO_GP0_IO;
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ir->mask_keycode = 0x8f8;
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ir->mask_keyup = 0x100;
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ir->polling = 1; /* ms */
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break;
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case CX88_BOARD_IODATA_GVBCTV7E:
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ir_codes = &ir_codes_iodata_bctv7e_table;
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ir->gpio_addr = MO_GP0_IO;
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ir->mask_keycode = 0xfd;
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ir->mask_keydown = 0x02;
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ir->polling = 5; /* ms */
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break;
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case CX88_BOARD_PROLINK_PLAYTVPVR:
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case CX88_BOARD_PIXELVIEW_PLAYTV_ULTRA_PRO:
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ir_codes = &ir_codes_pixelview_table;
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ir->gpio_addr = MO_GP1_IO;
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ir->mask_keycode = 0x1f;
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ir->mask_keyup = 0x80;
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ir->polling = 1; /* ms */
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break;
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case CX88_BOARD_PROLINK_PV_8000GT:
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case CX88_BOARD_PROLINK_PV_GLOBAL_XTREME:
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ir_codes = &ir_codes_pixelview_new_table;
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ir->gpio_addr = MO_GP1_IO;
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ir->mask_keycode = 0x3f;
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ir->mask_keyup = 0x80;
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ir->polling = 1; /* ms */
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break;
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case CX88_BOARD_KWORLD_LTV883:
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ir_codes = &ir_codes_pixelview_table;
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ir->gpio_addr = MO_GP1_IO;
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ir->mask_keycode = 0x1f;
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ir->mask_keyup = 0x60;
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ir->polling = 1; /* ms */
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break;
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case CX88_BOARD_ADSTECH_DVB_T_PCI:
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ir_codes = &ir_codes_adstech_dvb_t_pci_table;
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ir->gpio_addr = MO_GP1_IO;
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ir->mask_keycode = 0xbf;
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ir->mask_keyup = 0x40;
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ir->polling = 50; /* ms */
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break;
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case CX88_BOARD_MSI_TVANYWHERE_MASTER:
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ir_codes = &ir_codes_msi_tvanywhere_table;
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ir->gpio_addr = MO_GP1_IO;
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ir->mask_keycode = 0x1f;
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ir->mask_keyup = 0x40;
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ir->polling = 1; /* ms */
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break;
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case CX88_BOARD_AVERTV_303:
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case CX88_BOARD_AVERTV_STUDIO_303:
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ir_codes = &ir_codes_avertv_303_table;
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ir->gpio_addr = MO_GP2_IO;
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ir->mask_keycode = 0xfb;
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ir->mask_keydown = 0x02;
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ir->polling = 50; /* ms */
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break;
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case CX88_BOARD_DNTV_LIVE_DVB_T_PRO:
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ir_codes = &ir_codes_dntv_live_dvbt_pro_table;
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ir_type = IR_TYPE_PD;
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ir->sampling = 0xff00; /* address */
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break;
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case CX88_BOARD_NORWOOD_MICRO:
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ir_codes = &ir_codes_norwood_table;
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ir->gpio_addr = MO_GP1_IO;
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ir->mask_keycode = 0x0e;
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ir->mask_keyup = 0x80;
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ir->polling = 50; /* ms */
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break;
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case CX88_BOARD_NPGTECH_REALTV_TOP10FM:
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ir_codes = &ir_codes_npgtech_table;
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ir->gpio_addr = MO_GP0_IO;
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ir->mask_keycode = 0xfa;
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ir->polling = 50; /* ms */
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break;
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case CX88_BOARD_PINNACLE_PCTV_HD_800i:
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ir_codes = &ir_codes_pinnacle_pctv_hd_table;
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ir_type = IR_TYPE_RC5;
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ir->sampling = 1;
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break;
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case CX88_BOARD_POWERCOLOR_REAL_ANGEL:
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ir_codes = &ir_codes_powercolor_real_angel_table;
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ir->gpio_addr = MO_GP2_IO;
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ir->mask_keycode = 0x7e;
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ir->polling = 100; /* ms */
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break;
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}
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if (NULL == ir_codes) {
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err = -ENODEV;
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goto err_out_free;
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}
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/* init input device */
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snprintf(ir->name, sizeof(ir->name), "cx88 IR (%s)", core->board.name);
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|
snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0", pci_name(pci));
|
||
|
|
|
||
|
|
ir_input_init(input_dev, &ir->ir, ir_type, ir_codes);
|
||
|
|
input_dev->name = ir->name;
|
||
|
|
input_dev->phys = ir->phys;
|
||
|
|
input_dev->id.bustype = BUS_PCI;
|
||
|
|
input_dev->id.version = 1;
|
||
|
|
if (pci->subsystem_vendor) {
|
||
|
|
input_dev->id.vendor = pci->subsystem_vendor;
|
||
|
|
input_dev->id.product = pci->subsystem_device;
|
||
|
|
} else {
|
||
|
|
input_dev->id.vendor = pci->vendor;
|
||
|
|
input_dev->id.product = pci->device;
|
||
|
|
}
|
||
|
|
input_dev->dev.parent = &pci->dev;
|
||
|
|
/* record handles to ourself */
|
||
|
|
ir->core = core;
|
||
|
|
core->ir = ir;
|
||
|
|
|
||
|
|
cx88_ir_start(core, ir);
|
||
|
|
|
||
|
|
/* all done */
|
||
|
|
err = input_register_device(ir->input);
|
||
|
|
if (err)
|
||
|
|
goto err_out_stop;
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
err_out_stop:
|
||
|
|
cx88_ir_stop(core, ir);
|
||
|
|
core->ir = NULL;
|
||
|
|
err_out_free:
|
||
|
|
input_free_device(input_dev);
|
||
|
|
kfree(ir);
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
int cx88_ir_fini(struct cx88_core *core)
|
||
|
|
{
|
||
|
|
struct cx88_IR *ir = core->ir;
|
||
|
|
|
||
|
|
/* skip detach on non attached boards */
|
||
|
|
if (NULL == ir)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
cx88_ir_stop(core, ir);
|
||
|
|
input_unregister_device(ir->input);
|
||
|
|
kfree(ir);
|
||
|
|
|
||
|
|
/* done */
|
||
|
|
core->ir = NULL;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* ---------------------------------------------------------------------- */
|
||
|
|
|
||
|
|
void cx88_ir_irq(struct cx88_core *core)
|
||
|
|
{
|
||
|
|
struct cx88_IR *ir = core->ir;
|
||
|
|
u32 samples, ircode;
|
||
|
|
int i, start, range, toggle, dev, code;
|
||
|
|
|
||
|
|
if (NULL == ir)
|
||
|
|
return;
|
||
|
|
if (!ir->sampling)
|
||
|
|
return;
|
||
|
|
|
||
|
|
samples = cx_read(MO_SAMPLE_IO);
|
||
|
|
if (0 != samples && 0xffffffff != samples) {
|
||
|
|
/* record sample data */
|
||
|
|
if (ir->scount < ARRAY_SIZE(ir->samples))
|
||
|
|
ir->samples[ir->scount++] = samples;
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
if (!ir->scount) {
|
||
|
|
/* nothing to sample */
|
||
|
|
if (ir->ir.keypressed && time_after(jiffies, ir->release))
|
||
|
|
ir_input_nokey(ir->input, &ir->ir);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* have a complete sample */
|
||
|
|
if (ir->scount < ARRAY_SIZE(ir->samples))
|
||
|
|
ir->samples[ir->scount++] = samples;
|
||
|
|
for (i = 0; i < ir->scount; i++)
|
||
|
|
ir->samples[i] = ~ir->samples[i];
|
||
|
|
if (ir_debug)
|
||
|
|
ir_dump_samples(ir->samples, ir->scount);
|
||
|
|
|
||
|
|
/* decode it */
|
||
|
|
switch (core->boardnr) {
|
||
|
|
case CX88_BOARD_TERRATEC_CINERGY_1400_DVB_T1:
|
||
|
|
case CX88_BOARD_DNTV_LIVE_DVB_T_PRO:
|
||
|
|
ircode = ir_decode_pulsedistance(ir->samples, ir->scount, 1, 4);
|
||
|
|
|
||
|
|
if (ircode == 0xffffffff) { /* decoding error */
|
||
|
|
ir_dprintk("pulse distance decoding error\n");
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
ir_dprintk("pulse distance decoded: %x\n", ircode);
|
||
|
|
|
||
|
|
if (ircode == 0) { /* key still pressed */
|
||
|
|
ir_dprintk("pulse distance decoded repeat code\n");
|
||
|
|
ir->release = jiffies + msecs_to_jiffies(120);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ((ircode & 0xffff) != (ir->sampling & 0xffff)) { /* wrong address */
|
||
|
|
ir_dprintk("pulse distance decoded wrong address\n");
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (((~ircode >> 24) & 0xff) != ((ircode >> 16) & 0xff)) { /* wrong checksum */
|
||
|
|
ir_dprintk("pulse distance decoded wrong check sum\n");
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
ir_dprintk("Key Code: %x\n", (ircode >> 16) & 0x7f);
|
||
|
|
|
||
|
|
ir_input_keydown(ir->input, &ir->ir, (ircode >> 16) & 0x7f, (ircode >> 16) & 0xff);
|
||
|
|
ir->release = jiffies + msecs_to_jiffies(120);
|
||
|
|
break;
|
||
|
|
case CX88_BOARD_HAUPPAUGE:
|
||
|
|
case CX88_BOARD_HAUPPAUGE_DVB_T1:
|
||
|
|
case CX88_BOARD_HAUPPAUGE_NOVASE2_S1:
|
||
|
|
case CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1:
|
||
|
|
case CX88_BOARD_HAUPPAUGE_HVR1100:
|
||
|
|
case CX88_BOARD_HAUPPAUGE_HVR3000:
|
||
|
|
case CX88_BOARD_HAUPPAUGE_HVR4000:
|
||
|
|
case CX88_BOARD_HAUPPAUGE_HVR4000LITE:
|
||
|
|
case CX88_BOARD_PCHDTV_HD3000:
|
||
|
|
case CX88_BOARD_PCHDTV_HD5500:
|
||
|
|
case CX88_BOARD_HAUPPAUGE_IRONLY:
|
||
|
|
ircode = ir_decode_biphase(ir->samples, ir->scount, 5, 7);
|
||
|
|
ir_dprintk("biphase decoded: %x\n", ircode);
|
||
|
|
/*
|
||
|
|
* RC5 has an extension bit which adds a new range
|
||
|
|
* of available codes, this is detected here. Also
|
||
|
|
* 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 to the
|
||
|
|
* device causing mis-fired events.
|
||
|
|
*/
|
||
|
|
/* split rc5 data block ... */
|
||
|
|
start = (ircode & 0x2000) >> 13;
|
||
|
|
range = (ircode & 0x1000) >> 12;
|
||
|
|
toggle= (ircode & 0x0800) >> 11;
|
||
|
|
dev = (ircode & 0x07c0) >> 6;
|
||
|
|
code = (ircode & 0x003f) | ((range << 6) ^ 0x0040);
|
||
|
|
if( start != 1)
|
||
|
|
/* no key pressed */
|
||
|
|
break;
|
||
|
|
if ( dev != 0x1e && dev != 0x1f )
|
||
|
|
/* not a hauppauge remote */
|
||
|
|
break;
|
||
|
|
ir_input_keydown(ir->input, &ir->ir, code, ircode);
|
||
|
|
ir->release = jiffies + msecs_to_jiffies(120);
|
||
|
|
break;
|
||
|
|
case CX88_BOARD_PINNACLE_PCTV_HD_800i:
|
||
|
|
ircode = ir_decode_biphase(ir->samples, ir->scount, 5, 7);
|
||
|
|
ir_dprintk("biphase decoded: %x\n", ircode);
|
||
|
|
if ((ircode & 0xfffff000) != 0x3000)
|
||
|
|
break;
|
||
|
|
ir_input_keydown(ir->input, &ir->ir, ircode & 0x3f, ircode);
|
||
|
|
ir->release = jiffies + msecs_to_jiffies(120);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
ir->scount = 0;
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* ---------------------------------------------------------------------- */
|
||
|
|
|
||
|
|
MODULE_AUTHOR("Gerd Knorr, Pavel Machek, Chris Pascoe");
|
||
|
|
MODULE_DESCRIPTION("input driver for cx88 GPIO-based IR remote controls");
|
||
|
|
MODULE_LICENSE("GPL");
|
||
|
|
/*
|
||
|
|
* Local variables:
|
||
|
|
* c-basic-offset: 8
|
||
|
|
* End:
|
||
|
|
*/
|