| /* |
| * 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 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 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"); |