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/ir-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)");
42 #define dprintk(fmt, arg...) \
44 printk(KERN_DEBUG "%s/ir: " fmt, ir->name , ## arg); \
47 struct tm6000_ir_poll_result {
52 struct tm6000_core *dev;
53 struct ir_input_dev *input;
57 /* poll expernal decoder */
59 struct delayed_work work;
65 int (*get_key) (struct tm6000_IR *, struct tm6000_ir_poll_result *);
67 /* IR device properties */
69 struct ir_dev_props props;
73 void tm6000_ir_wait(struct tm6000_core *dev, u8 state)
75 struct tm6000_IR *ir = dev->ir;
87 static int tm6000_ir_config(struct tm6000_IR *ir)
89 struct tm6000_core *dev = ir->dev;
105 rc = tm6000_read_write_usb(dev, USB_DIR_OUT | USB_TYPE_VENDOR |
106 USB_RECIP_DEVICE, REQ_00_SET_IR_VALUE, 0, 0, buf, 0x0a);
110 printk(KERN_INFO "IR configuration failed");
116 static void tm6000_ir_urb_received(struct urb *urb)
118 struct tm6000_core *dev = urb->context;
119 struct tm6000_IR *ir = dev->ir;
122 if (urb->status != 0)
123 printk(KERN_INFO "not ready\n");
124 else if (urb->actual_length > 0) {
125 memcpy(ir->urb_data, urb->transfer_buffer, urb->actual_length);
127 dprintk("data %02x %02x %02x %02x\n", ir->urb_data[0],
128 ir->urb_data[1], ir->urb_data[2], ir->urb_data[3]);
133 rc = usb_submit_urb(urb, GFP_ATOMIC);
136 static int default_polling_getkey(struct tm6000_IR *ir,
137 struct tm6000_ir_poll_result *poll_result)
139 struct tm6000_core *dev = ir->dev;
143 if (ir->wait && !&dev->int_in)
147 if (ir->ir_type == IR_TYPE_RC5)
148 poll_result->rc_data = ir->urb_data[0];
150 poll_result->rc_data = ir->urb_data[0] | ir->urb_data[1] << 8;
152 tm6000_set_reg(dev, REQ_04_EN_DISABLE_MCU_INT, 2, 0);
154 tm6000_set_reg(dev, REQ_04_EN_DISABLE_MCU_INT, 2, 1);
157 if (ir->ir_type == IR_TYPE_RC5) {
158 rc = tm6000_read_write_usb(dev, USB_DIR_IN |
159 USB_TYPE_VENDOR | USB_RECIP_DEVICE,
160 REQ_02_GET_IR_CODE, 0, 0, buf, 1);
164 dprintk("read data=%02x\n", buf[0]);
168 poll_result->rc_data = buf[0];
170 rc = tm6000_read_write_usb(dev, USB_DIR_IN |
171 USB_TYPE_VENDOR | USB_RECIP_DEVICE,
172 REQ_02_GET_IR_CODE, 0, 0, buf, 2);
176 dprintk("read data=%04x\n", buf[0] | buf[1] << 8);
180 poll_result->rc_data = buf[0] | buf[1] << 8;
182 if ((poll_result->rc_data & 0x00ff) != 0xff)
188 static void tm6000_ir_handle_key(struct tm6000_IR *ir)
191 struct tm6000_ir_poll_result poll_result;
193 /* read the registers containing the IR status */
194 result = ir->get_key(ir, &poll_result);
196 printk(KERN_INFO "ir->get_key() failed %d\n", result);
200 dprintk("ir->get_key result data=%04x\n", poll_result.rc_data);
203 ir_keydown(ir->input->input_dev, poll_result.rc_data, 0);
209 static void tm6000_ir_work(struct work_struct *work)
211 struct tm6000_IR *ir = container_of(work, struct tm6000_IR, work.work);
213 tm6000_ir_handle_key(ir);
214 schedule_delayed_work(&ir->work, msecs_to_jiffies(ir->polling));
217 static int tm6000_ir_start(void *priv)
219 struct tm6000_IR *ir = priv;
221 INIT_DELAYED_WORK(&ir->work, tm6000_ir_work);
222 schedule_delayed_work(&ir->work, 0);
227 static void tm6000_ir_stop(void *priv)
229 struct tm6000_IR *ir = priv;
231 cancel_delayed_work_sync(&ir->work);
234 int tm6000_ir_change_protocol(void *priv, u64 ir_type)
236 struct tm6000_IR *ir = priv;
238 ir->get_key = default_polling_getkey;
240 tm6000_ir_config(ir);
245 int tm6000_ir_init(struct tm6000_core *dev)
247 struct tm6000_IR *ir;
248 struct ir_input_dev *ir_input_dev;
255 if (!dev->caps.has_remote)
261 ir = kzalloc(sizeof(*ir), GFP_KERNEL);
262 ir_input_dev = kzalloc(sizeof(*ir_input_dev), GFP_KERNEL);
263 ir_input_dev->input_dev = input_allocate_device();
264 if (!ir || !ir_input_dev || !ir_input_dev->input_dev)
267 /* record handles to ourself */
271 ir->input = ir_input_dev;
273 /* input einrichten */
274 ir->props.allowed_protos = IR_TYPE_RC5 | IR_TYPE_NEC;
276 ir->props.change_protocol = tm6000_ir_change_protocol;
277 ir->props.open = tm6000_ir_start;
278 ir->props.close = tm6000_ir_stop;
279 ir->props.driver_type = RC_DRIVER_SCANCODE;
283 snprintf(ir->name, sizeof(ir->name), "tm5600/60x0 IR (%s)",
286 usb_make_path(dev->udev, ir->phys, sizeof(ir->phys));
287 strlcat(ir->phys, "/input0", sizeof(ir->phys));
289 tm6000_ir_change_protocol(ir, IR_TYPE_UNKNOWN);
291 ir_input_dev->input_dev->name = ir->name;
292 ir_input_dev->input_dev->phys = ir->phys;
293 ir_input_dev->input_dev->id.bustype = BUS_USB;
294 ir_input_dev->input_dev->id.version = 1;
295 ir_input_dev->input_dev->id.vendor = le16_to_cpu(dev->udev->descriptor.idVendor);
296 ir_input_dev->input_dev->id.product = le16_to_cpu(dev->udev->descriptor.idProduct);
298 ir_input_dev->input_dev->dev.parent = &dev->udev->dev;
301 dprintk("IR over int\n");
303 ir->int_urb = usb_alloc_urb(0, GFP_KERNEL);
305 pipe = usb_rcvintpipe(dev->udev,
306 dev->int_in.endp->desc.bEndpointAddress
307 & USB_ENDPOINT_NUMBER_MASK);
309 size = usb_maxpacket(dev->udev, pipe, usb_pipeout(pipe));
310 dprintk("IR max size: %d\n", size);
312 ir->int_urb->transfer_buffer = kzalloc(size, GFP_KERNEL);
313 if (ir->int_urb->transfer_buffer == NULL) {
314 usb_free_urb(ir->int_urb);
317 dprintk("int interval: %d\n", dev->int_in.endp->desc.bInterval);
318 usb_fill_int_urb(ir->int_urb, dev->udev, pipe,
319 ir->int_urb->transfer_buffer, size,
320 tm6000_ir_urb_received, dev,
321 dev->int_in.endp->desc.bInterval);
322 rc = usb_submit_urb(ir->int_urb, GFP_KERNEL);
324 kfree(ir->int_urb->transfer_buffer);
325 usb_free_urb(ir->int_urb);
329 ir->urb_data = kzalloc(size, GFP_KERNEL);
333 err = ir_input_register(ir->input->input_dev, dev->ir_codes,
334 &ir->props, "tm6000");
348 int tm6000_ir_fini(struct tm6000_core *dev)
350 struct tm6000_IR *ir = dev->ir;
352 /* skip detach on non attached board */
357 ir_input_unregister(ir->input->input_dev);
360 usb_kill_urb(ir->int_urb);
361 kfree(ir->int_urb->transfer_buffer);
362 usb_free_urb(ir->int_urb);