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>
28 #include <media/ir-common.h>
31 #include "tm6000-regs.h"
33 static unsigned int ir_debug;
34 module_param(ir_debug, int, 0644);
35 MODULE_PARM_DESC(ir_debug, "enable debug message [IR]");
37 static unsigned int enable_ir = 1;
38 module_param(enable_ir, int, 0644);
39 MODULE_PARM_DESC(enable_ir, "enable ir (default is enable");
43 #define dprintk(fmt, arg...) \
45 printk(KERN_DEBUG "%s/ir: " fmt, ir->name , ## arg); \
48 struct tm6000_ir_poll_result {
53 struct tm6000_core *dev;
54 struct ir_input_dev *input;
55 struct ir_input_state ir;
59 /* poll expernal decoder */
61 struct delayed_work work;
67 int (*get_key) (struct tm6000_IR *, struct tm6000_ir_poll_result *);
69 /* IR device properties */
70 struct ir_dev_props props;
74 void tm6000_ir_wait(struct tm6000_core *dev, u8 state)
76 struct tm6000_IR *ir = dev->ir;
88 static int tm6000_ir_config(struct tm6000_IR *ir)
90 struct tm6000_core *dev = ir->dev;
106 rc = tm6000_read_write_usb(dev, USB_DIR_OUT | USB_TYPE_VENDOR |
107 USB_RECIP_DEVICE, REQ_00_SET_IR_VALUE, 0, 0, buf, 0x0a);
111 printk(KERN_INFO "IR configuration failed");
117 static void tm6000_ir_urb_received(struct urb *urb)
119 struct tm6000_core *dev = urb->context;
120 struct tm6000_IR *ir = dev->ir;
123 if (urb->status != 0)
124 printk(KERN_INFO "not ready\n");
125 else if (urb->actual_length > 0) {
126 memcpy(ir->urb_data, urb->transfer_buffer, urb->actual_length);
128 dprintk("data %02x %02x %02x %02x\n", ir->urb_data[0],
129 ir->urb_data[1], ir->urb_data[2], ir->urb_data[3]);
134 rc = usb_submit_urb(urb, GFP_ATOMIC);
137 static int default_polling_getkey(struct tm6000_IR *ir,
138 struct tm6000_ir_poll_result *poll_result)
140 struct tm6000_core *dev = ir->dev;
144 if (ir->wait && !&dev->int_in)
148 if (ir->ir.ir_type == IR_TYPE_RC5)
149 poll_result->rc_data = ir->urb_data[0];
151 poll_result->rc_data = ir->urb_data[0] | ir->urb_data[1] << 8;
153 tm6000_set_reg(dev, REQ_04_EN_DISABLE_MCU_INT, 2, 0);
155 tm6000_set_reg(dev, REQ_04_EN_DISABLE_MCU_INT, 2, 1);
158 if (ir->ir.ir_type == IR_TYPE_RC5) {
159 rc = tm6000_read_write_usb(dev, USB_DIR_IN |
160 USB_TYPE_VENDOR | USB_RECIP_DEVICE,
161 REQ_02_GET_IR_CODE, 0, 0, buf, 1);
165 dprintk("read data=%02x\n", buf[0]);
169 poll_result->rc_data = buf[0];
171 rc = tm6000_read_write_usb(dev, USB_DIR_IN |
172 USB_TYPE_VENDOR | USB_RECIP_DEVICE,
173 REQ_02_GET_IR_CODE, 0, 0, buf, 2);
177 dprintk("read data=%04x\n", buf[0] | buf[1] << 8);
181 poll_result->rc_data = buf[0] | buf[1] << 8;
183 if ((poll_result->rc_data & 0x00ff) != 0xff)
189 static void tm6000_ir_handle_key(struct tm6000_IR *ir)
192 struct tm6000_ir_poll_result poll_result;
194 /* read the registers containing the IR status */
195 result = ir->get_key(ir, &poll_result);
197 printk(KERN_INFO "ir->get_key() failed %d\n", result);
201 dprintk("ir->get_key result data=%04x\n", poll_result.rc_data);
204 ir_input_keydown(ir->input->input_dev, &ir->ir,
205 (u32)poll_result.rc_data);
207 ir_input_nokey(ir->input->input_dev, &ir->ir);
213 static void tm6000_ir_work(struct work_struct *work)
215 struct tm6000_IR *ir = container_of(work, struct tm6000_IR, work.work);
217 tm6000_ir_handle_key(ir);
218 schedule_delayed_work(&ir->work, msecs_to_jiffies(ir->polling));
221 static int tm6000_ir_start(void *priv)
223 struct tm6000_IR *ir = priv;
225 INIT_DELAYED_WORK(&ir->work, tm6000_ir_work);
226 schedule_delayed_work(&ir->work, 0);
231 static void tm6000_ir_stop(void *priv)
233 struct tm6000_IR *ir = priv;
235 cancel_delayed_work_sync(&ir->work);
238 int tm6000_ir_change_protocol(void *priv, u64 ir_type)
240 struct tm6000_IR *ir = priv;
242 ir->get_key = default_polling_getkey;
244 tm6000_ir_config(ir);
249 int tm6000_ir_init(struct tm6000_core *dev)
251 struct tm6000_IR *ir;
252 struct ir_input_dev *ir_input_dev;
259 if (!dev->caps.has_remote)
265 ir = kzalloc(sizeof(*ir), GFP_KERNEL);
266 ir_input_dev = kzalloc(sizeof(*ir_input_dev), GFP_KERNEL);
267 ir_input_dev->input_dev = input_allocate_device();
268 if (!ir || !ir_input_dev || !ir_input_dev->input_dev)
271 /* record handles to ourself */
275 ir->input = ir_input_dev;
277 /* input einrichten */
278 ir->props.allowed_protos = IR_TYPE_RC5 | IR_TYPE_NEC;
280 ir->props.change_protocol = tm6000_ir_change_protocol;
281 ir->props.open = tm6000_ir_start;
282 ir->props.close = tm6000_ir_stop;
283 ir->props.driver_type = RC_DRIVER_SCANCODE;
287 snprintf(ir->name, sizeof(ir->name), "tm5600/60x0 IR (%s)",
290 usb_make_path(dev->udev, ir->phys, sizeof(ir->phys));
291 strlcat(ir->phys, "/input0", sizeof(ir->phys));
293 tm6000_ir_change_protocol(ir, IR_TYPE_UNKNOWN);
294 err = ir_input_init(ir_input_dev->input_dev, &ir->ir, IR_TYPE_OTHER);
298 ir_input_dev->input_dev->name = ir->name;
299 ir_input_dev->input_dev->phys = ir->phys;
300 ir_input_dev->input_dev->id.bustype = BUS_USB;
301 ir_input_dev->input_dev->id.version = 1;
302 ir_input_dev->input_dev->id.vendor = le16_to_cpu(dev->udev->descriptor.idVendor);
303 ir_input_dev->input_dev->id.product = le16_to_cpu(dev->udev->descriptor.idProduct);
305 ir_input_dev->input_dev->dev.parent = &dev->udev->dev;
308 dprintk("IR over int\n");
310 ir->int_urb = usb_alloc_urb(0, GFP_KERNEL);
312 pipe = usb_rcvintpipe(dev->udev,
313 dev->int_in.endp->desc.bEndpointAddress
314 & USB_ENDPOINT_NUMBER_MASK);
316 size = usb_maxpacket(dev->udev, pipe, usb_pipeout(pipe));
317 dprintk("IR max size: %d\n", size);
319 ir->int_urb->transfer_buffer = kzalloc(size, GFP_KERNEL);
320 if (ir->int_urb->transfer_buffer == NULL) {
321 usb_free_urb(ir->int_urb);
324 dprintk("int interval: %d\n", dev->int_in.endp->desc.bInterval);
325 usb_fill_int_urb(ir->int_urb, dev->udev, pipe,
326 ir->int_urb->transfer_buffer, size,
327 tm6000_ir_urb_received, dev,
328 dev->int_in.endp->desc.bInterval);
329 rc = usb_submit_urb(ir->int_urb, GFP_KERNEL);
331 kfree(ir->int_urb->transfer_buffer);
332 usb_free_urb(ir->int_urb);
336 ir->urb_data = kzalloc(size, GFP_KERNEL);
340 err = ir_input_register(ir->input->input_dev, dev->ir_codes,
341 &ir->props, "tm6000");
355 int tm6000_ir_fini(struct tm6000_core *dev)
357 struct tm6000_IR *ir = dev->ir;
359 /* skip detach on non attached board */
364 ir_input_unregister(ir->input->input_dev);
367 usb_kill_urb(ir->int_urb);
368 kfree(ir->int_urb->transfer_buffer);
369 usb_free_urb(ir->int_urb);