2 * tm6000-input.c - driver for TM5600/TM6000/TM6010 USB video capture devices
4 * Copyright (C) 2010 Stefan Ringel <stefan.ringel@arcor.de>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation version 2
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #include <linux/module.h>
21 #include <linux/init.h>
22 #include <linux/delay.h>
24 #include <linux/input.h>
25 #include <linux/usb.h>
27 #include <media/rc-core.h>
30 #include "tm6000-regs.h"
32 static unsigned int ir_debug;
33 module_param(ir_debug, int, 0644);
34 MODULE_PARM_DESC(ir_debug, "enable debug message [IR]");
36 static unsigned int enable_ir = 1;
37 module_param(enable_ir, int, 0644);
38 MODULE_PARM_DESC(enable_ir, "enable ir (default is enable)");
40 /* number of 50ms for ON-OFF-ON power led */
41 /* show IR activity */
46 #define dprintk(fmt, arg...) \
48 printk(KERN_DEBUG "%s/ir: " fmt, ir->name , ## arg); \
51 struct tm6000_ir_poll_result {
56 struct tm6000_core *dev;
61 /* poll expernal decoder */
63 struct delayed_work work;
72 int (*get_key) (struct tm6000_IR *, struct tm6000_ir_poll_result *);
74 /* IR device properties */
79 void tm6000_ir_wait(struct tm6000_core *dev, u8 state)
81 struct tm6000_IR *ir = dev->ir;
93 static int tm6000_ir_config(struct tm6000_IR *ir)
95 struct tm6000_core *dev = ir->dev;
99 switch (ir->rc_type) {
101 /* Setup IR decoder for NEC standard 12MHz system clock */
102 /* IR_LEADER_CNT = 0.9ms */
103 tm6000_set_reg(dev, TM6010_REQ07_RD8_IR_LEADER1, 0xaa);
104 tm6000_set_reg(dev, TM6010_REQ07_RD8_IR_LEADER0, 0x30);
105 /* IR_PULSE_CNT = 0.7ms */
106 tm6000_set_reg(dev, TM6010_REQ07_RD8_IR_PULSE_CNT1, 0x20);
107 tm6000_set_reg(dev, TM6010_REQ07_RD8_IR_PULSE_CNT0, 0xd0);
108 /* Remote WAKEUP = enable */
109 tm6000_set_reg(dev, TM6010_REQ07_RE5_REMOTE_WAKEUP, 0xfe);
110 /* IR_WKUP_SEL = Low byte in decoded IR data */
111 tm6000_set_reg(dev, TM6010_REQ07_RD8_IR_WAKEUP_SEL, 0xff);
112 /* IR_WKU_ADD code */
113 tm6000_set_reg(dev, TM6010_REQ07_RD8_IR_WAKEUP_ADD, 0xff);
114 tm6000_flash_led(dev, 0);
116 tm6000_flash_led(dev, 1);
131 rc = tm6000_read_write_usb(dev, USB_DIR_OUT | USB_TYPE_VENDOR |
132 USB_RECIP_DEVICE, REQ_00_SET_IR_VALUE, 0, 0, buf, 0x0a);
136 printk(KERN_INFO "IR configuration failed");
145 static void tm6000_ir_urb_received(struct urb *urb)
147 struct tm6000_core *dev = urb->context;
148 struct tm6000_IR *ir = dev->ir;
151 if (urb->status != 0)
152 printk(KERN_INFO "not ready\n");
153 else if (urb->actual_length > 0) {
154 memcpy(ir->urb_data, urb->transfer_buffer, urb->actual_length);
156 dprintk("data %02x %02x %02x %02x\n", ir->urb_data[0],
157 ir->urb_data[1], ir->urb_data[2], ir->urb_data[3]);
162 rc = usb_submit_urb(urb, GFP_ATOMIC);
165 static int default_polling_getkey(struct tm6000_IR *ir,
166 struct tm6000_ir_poll_result *poll_result)
168 struct tm6000_core *dev = ir->dev;
172 if (ir->wait && !&dev->int_in)
176 switch (ir->rc_type) {
178 poll_result->rc_data = ir->urb_data[0];
181 if (ir->urb_data[1] == ((ir->key_addr >> 8) & 0xff)) {
182 poll_result->rc_data = ir->urb_data[0]
183 | ir->urb_data[1] << 8;
187 poll_result->rc_data = ir->urb_data[0]
188 | ir->urb_data[1] << 8;
192 tm6000_set_reg(dev, REQ_04_EN_DISABLE_MCU_INT, 2, 0);
194 tm6000_set_reg(dev, REQ_04_EN_DISABLE_MCU_INT, 2, 1);
197 if (ir->rc_type == RC_TYPE_RC5) {
198 rc = tm6000_read_write_usb(dev, USB_DIR_IN |
199 USB_TYPE_VENDOR | USB_RECIP_DEVICE,
200 REQ_02_GET_IR_CODE, 0, 0, buf, 1);
204 dprintk("read data=%02x\n", buf[0]);
208 poll_result->rc_data = buf[0];
210 rc = tm6000_read_write_usb(dev, USB_DIR_IN |
211 USB_TYPE_VENDOR | USB_RECIP_DEVICE,
212 REQ_02_GET_IR_CODE, 0, 0, buf, 2);
216 dprintk("read data=%04x\n", buf[0] | buf[1] << 8);
220 poll_result->rc_data = buf[0] | buf[1] << 8;
222 if ((poll_result->rc_data & 0x00ff) != 0xff)
228 static void tm6000_ir_handle_key(struct tm6000_IR *ir)
230 struct tm6000_core *dev = ir->dev;
232 struct tm6000_ir_poll_result poll_result;
234 /* read the registers containing the IR status */
235 result = ir->get_key(ir, &poll_result);
237 printk(KERN_INFO "ir->get_key() failed %d\n", result);
241 dprintk("ir->get_key result data=%04x\n", poll_result.rc_data);
244 if (ir->pwledcnt >= PWLED_OFF) {
247 tm6000_flash_led(dev, 1);
253 rc_keydown(ir->rc, poll_result.rc_data, 0);
257 tm6000_flash_led(dev, 0);
262 static void tm6000_ir_work(struct work_struct *work)
264 struct tm6000_IR *ir = container_of(work, struct tm6000_IR, work.work);
266 tm6000_ir_handle_key(ir);
267 schedule_delayed_work(&ir->work, msecs_to_jiffies(ir->polling));
270 static int tm6000_ir_start(struct rc_dev *rc)
272 struct tm6000_IR *ir = rc->priv;
274 INIT_DELAYED_WORK(&ir->work, tm6000_ir_work);
275 schedule_delayed_work(&ir->work, 0);
280 static void tm6000_ir_stop(struct rc_dev *rc)
282 struct tm6000_IR *ir = rc->priv;
284 cancel_delayed_work_sync(&ir->work);
287 int tm6000_ir_change_protocol(struct rc_dev *rc, u64 rc_type)
289 struct tm6000_IR *ir = rc->priv;
294 if ((rc->rc_map.scan) && (rc_type == RC_TYPE_NEC))
295 ir->key_addr = ((rc->rc_map.scan[0].scancode >> 8) & 0xffff);
297 ir->get_key = default_polling_getkey;
298 ir->rc_type = rc_type;
300 tm6000_ir_config(ir);
305 int tm6000_ir_int_start(struct tm6000_core *dev)
307 struct tm6000_IR *ir = dev->ir;
315 ir->int_urb = usb_alloc_urb(0, GFP_KERNEL);
317 pipe = usb_rcvintpipe(dev->udev,
318 dev->int_in.endp->desc.bEndpointAddress
319 & USB_ENDPOINT_NUMBER_MASK);
321 size = usb_maxpacket(dev->udev, pipe, usb_pipeout(pipe));
322 dprintk("IR max size: %d\n", size);
324 ir->int_urb->transfer_buffer = kzalloc(size, GFP_KERNEL);
325 if (ir->int_urb->transfer_buffer == NULL) {
326 usb_free_urb(ir->int_urb);
329 dprintk("int interval: %d\n", dev->int_in.endp->desc.bInterval);
330 usb_fill_int_urb(ir->int_urb, dev->udev, pipe,
331 ir->int_urb->transfer_buffer, size,
332 tm6000_ir_urb_received, dev,
333 dev->int_in.endp->desc.bInterval);
334 err = usb_submit_urb(ir->int_urb, GFP_KERNEL);
336 kfree(ir->int_urb->transfer_buffer);
337 usb_free_urb(ir->int_urb);
340 ir->urb_data = kzalloc(size, GFP_KERNEL);
345 void tm6000_ir_int_stop(struct tm6000_core *dev)
347 struct tm6000_IR *ir = dev->ir;
352 usb_kill_urb(ir->int_urb);
353 kfree(ir->int_urb->transfer_buffer);
354 usb_free_urb(ir->int_urb);
360 int tm6000_ir_init(struct tm6000_core *dev)
362 struct tm6000_IR *ir;
369 if (!dev->caps.has_remote)
375 ir = kzalloc(sizeof(*ir), GFP_KERNEL);
376 rc = rc_allocate_device();
380 /* record handles to ourself */
385 /* input einrichten */
386 rc->allowed_protos = RC_TYPE_RC5 | RC_TYPE_NEC;
388 rc->change_protocol = tm6000_ir_change_protocol;
389 rc->open = tm6000_ir_start;
390 rc->close = tm6000_ir_stop;
391 rc->driver_type = RC_DRIVER_SCANCODE;
398 snprintf(ir->name, sizeof(ir->name), "tm5600/60x0 IR (%s)",
401 usb_make_path(dev->udev, ir->phys, sizeof(ir->phys));
402 strlcat(ir->phys, "/input0", sizeof(ir->phys));
404 tm6000_ir_change_protocol(rc, RC_TYPE_UNKNOWN);
406 rc->input_name = ir->name;
407 rc->input_phys = ir->phys;
408 rc->input_id.bustype = BUS_USB;
409 rc->input_id.version = 1;
410 rc->input_id.vendor = le16_to_cpu(dev->udev->descriptor.idVendor);
411 rc->input_id.product = le16_to_cpu(dev->udev->descriptor.idProduct);
412 rc->map_name = dev->ir_codes;
413 rc->driver_name = "tm6000";
414 rc->dev.parent = &dev->udev->dev;
417 dprintk("IR over int\n");
419 err = tm6000_ir_int_start(dev);
426 err = rc_register_device(rc);
439 int tm6000_ir_fini(struct tm6000_core *dev)
441 struct tm6000_IR *ir = dev->ir;
443 /* skip detach on non attached board */
448 rc_unregister_device(ir->rc);
451 tm6000_ir_int_stop(dev);