Commit | Line | Data |
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d064f960 SR |
1 | /* |
2 | tm6000-input.c - driver for TM5600/TM6000/TM6010 USB video capture devices | |
3 | ||
4 | Copyright (C) 2010 Stefan Ringel <stefan.ringel@arcor.de> | |
5 | ||
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 | |
9 | ||
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. | |
14 | ||
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. | |
18 | */ | |
19 | ||
20 | #include <linux/module.h> | |
21 | #include <linux/init.h> | |
22 | #include <linux/delay.h> | |
23 | ||
24 | #include <linux/input.h> | |
25 | #include <linux/usb.h> | |
26 | ||
27 | #include <media/ir-core.h> | |
28 | #include <media/ir-common.h> | |
29 | ||
30 | #include "tm6000.h" | |
31 | #include "tm6000-regs.h" | |
32 | ||
33 | static unsigned int ir_debug; | |
34 | module_param(ir_debug, int, 0644); | |
35 | MODULE_PARM_DESC(ir_debug, "enable debug message [IR]"); | |
36 | ||
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"); | |
40 | ||
41 | #undef dprintk | |
42 | ||
43 | #define dprintk(fmt, arg... ) \ | |
44 | if (ir_debug) { \ | |
45 | printk(KERN_DEBUG "%s/ir: " fmt, ir->name , ## arg); \ | |
46 | } | |
47 | ||
48 | struct tm6000_ir_poll_result { | |
49 | u8 rc_data[4]; | |
50 | }; | |
51 | ||
52 | struct tm6000_IR { | |
53 | struct tm6000_core *dev; | |
54 | struct ir_input_dev *input; | |
55 | struct ir_input_state ir; | |
56 | char name[32]; | |
57 | char phys[32]; | |
58 | ||
59 | /* poll expernal decoder */ | |
60 | int polling; | |
61 | struct delayed_work work; | |
62 | u8 wait:1; | |
63 | struct urb *int_urb; | |
64 | u8 *urb_data; | |
65 | u8 key:1; | |
66 | ||
67 | int (*get_key) (struct tm6000_IR *, struct tm6000_ir_poll_result *); | |
68 | ||
69 | /* IR device properties */ | |
70 | struct ir_dev_props props; | |
71 | }; | |
72 | ||
73 | ||
74 | void tm6000_ir_wait(struct tm6000_core *dev, u8 state) | |
75 | { | |
76 | struct tm6000_IR *ir = dev->ir; | |
77 | ||
78 | if (!dev->ir) | |
79 | return; | |
80 | ||
81 | if (state) | |
82 | ir->wait = 1; | |
83 | else | |
84 | ir->wait = 0; | |
85 | } | |
86 | ||
87 | ||
88 | static int tm6000_ir_config(struct tm6000_IR *ir) | |
89 | { | |
90 | struct tm6000_core *dev = ir->dev; | |
91 | u8 buf[10]; | |
92 | int rc; | |
93 | ||
94 | /* hack */ | |
95 | buf[0] = 0xff; | |
96 | buf[1] = 0xff; | |
97 | buf[2] = 0xf2; | |
98 | buf[3] = 0x2b; | |
99 | buf[4] = 0x20; | |
100 | buf[5] = 0x35; | |
101 | buf[6] = 0x60; | |
102 | buf[7] = 0x04; | |
103 | buf[8] = 0xc0; | |
104 | buf[9] = 0x08; | |
105 | ||
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); | |
108 | msleep(100); | |
109 | ||
110 | if (rc < 0) { | |
111 | printk(KERN_INFO "IR configuration failed"); | |
112 | return rc; | |
113 | } | |
114 | return 0; | |
115 | } | |
116 | ||
117 | static void tm6000_ir_urb_received(struct urb *urb) | |
118 | { | |
119 | struct tm6000_core *dev = urb->context; | |
120 | struct tm6000_IR *ir = dev->ir; | |
121 | int rc; | |
122 | ||
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); | |
127 | ||
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]); | |
130 | ||
131 | ir->key = 1; | |
132 | ||
133 | rc = usb_submit_urb(urb, GFP_ATOMIC); | |
134 | } | |
135 | ||
136 | static int default_polling_getkey(struct tm6000_IR *ir, | |
137 | struct tm6000_ir_poll_result *poll_result) | |
138 | { | |
139 | struct tm6000_core *dev = ir->dev; | |
140 | int rc; | |
141 | u8 buf[2]; | |
142 | ||
143 | if(ir->wait && !&dev->int_in) { | |
144 | poll_result->rc_data[0] = 0xff; | |
145 | return 0; | |
146 | } | |
147 | ||
148 | if (&dev->int_in) { | |
149 | poll_result->rc_data[0] = ir->urb_data[0]; | |
150 | poll_result->rc_data[1] = ir->urb_data[1]; | |
151 | } else { | |
152 | tm6000_set_reg(dev, REQ_04_EN_DISABLE_MCU_INT, 2, 0); | |
153 | msleep(10); | |
154 | tm6000_set_reg(dev, REQ_04_EN_DISABLE_MCU_INT, 2, 1); | |
155 | msleep(10); | |
156 | ||
157 | rc = tm6000_read_write_usb(dev, USB_DIR_IN | USB_TYPE_VENDOR | | |
158 | USB_RECIP_DEVICE, REQ_02_GET_IR_CODE, 0, 0, buf, 1); | |
159 | ||
160 | msleep(10); | |
161 | ||
162 | dprintk ("read data=%02x\n", buf[0]); | |
163 | if (rc < 0) { | |
164 | return rc; | |
165 | } | |
166 | poll_result->rc_data[0] = buf[0]; | |
167 | } | |
168 | return 0; | |
169 | } | |
170 | ||
171 | static void tm6000_ir_handle_key(struct tm6000_IR *ir) | |
172 | { | |
173 | int result; | |
174 | struct tm6000_ir_poll_result poll_result; | |
175 | ||
176 | /* read the registers containing the IR status */ | |
177 | result = ir->get_key(ir, &poll_result); | |
178 | if (result < 0) { | |
179 | printk(KERN_INFO "ir->get_key() failed %d\n", result); | |
180 | return; | |
181 | } | |
182 | ||
183 | dprintk("ir->get_key result data=%02x %02x\n", | |
184 | poll_result.rc_data[0], poll_result.rc_data[1]); | |
185 | ||
186 | if (poll_result.rc_data[0] != 0xff && ir->key == 1) { | |
187 | ir_input_keydown(ir->input->input_dev, &ir->ir, | |
188 | poll_result.rc_data[0] | poll_result.rc_data[1] << 8); | |
189 | ||
190 | ir_input_nokey(ir->input->input_dev, &ir->ir); | |
191 | ir->key = 0; | |
192 | } | |
193 | return; | |
194 | } | |
195 | ||
196 | static void tm6000_ir_work(struct work_struct *work) | |
197 | { | |
198 | struct tm6000_IR *ir = container_of(work, struct tm6000_IR, work.work); | |
199 | ||
200 | tm6000_ir_handle_key(ir); | |
201 | schedule_delayed_work(&ir->work, msecs_to_jiffies(ir->polling)); | |
202 | } | |
203 | ||
204 | static int tm6000_ir_start(void *priv) | |
205 | { | |
206 | struct tm6000_IR *ir = priv; | |
207 | ||
208 | INIT_DELAYED_WORK(&ir->work, tm6000_ir_work); | |
209 | schedule_delayed_work(&ir->work, 0); | |
210 | ||
211 | return 0; | |
212 | } | |
213 | ||
214 | static void tm6000_ir_stop(void *priv) | |
215 | { | |
216 | struct tm6000_IR *ir = priv; | |
217 | ||
218 | cancel_delayed_work_sync(&ir->work); | |
219 | } | |
220 | ||
221 | int tm6000_ir_change_protocol(void *priv, u64 ir_type) | |
222 | { | |
223 | struct tm6000_IR *ir = priv; | |
224 | ||
225 | ir->get_key = default_polling_getkey; | |
226 | ||
227 | tm6000_ir_config(ir); | |
228 | /* TODO */ | |
229 | return 0; | |
230 | } | |
231 | ||
232 | int tm6000_ir_init(struct tm6000_core *dev) | |
233 | { | |
234 | struct tm6000_IR *ir; | |
235 | struct ir_input_dev *ir_input_dev; | |
236 | int err = -ENOMEM; | |
237 | int pipe, size, rc; | |
238 | ||
239 | if (!enable_ir) | |
240 | return -ENODEV; | |
241 | ||
242 | if (!dev->caps.has_remote) | |
243 | return 0; | |
244 | ||
245 | if (!dev->ir_codes) | |
246 | return 0; | |
247 | ||
248 | ir = kzalloc(sizeof(*ir), GFP_KERNEL); | |
249 | ir_input_dev = kzalloc(sizeof(*ir_input_dev), GFP_KERNEL); | |
250 | ir_input_dev->input_dev = input_allocate_device(); | |
251 | if (!ir || !ir_input_dev || !ir_input_dev->input_dev) | |
252 | goto err_out_free; | |
253 | ||
254 | /* record handles to ourself */ | |
255 | ir->dev = dev; | |
256 | dev->ir = ir; | |
257 | ||
258 | ir->input = ir_input_dev; | |
259 | ||
260 | /* input einrichten */ | |
261 | ir->props.allowed_protos = IR_TYPE_RC5 | IR_TYPE_NEC; | |
262 | ir->props.priv = ir; | |
263 | ir->props.change_protocol = tm6000_ir_change_protocol; | |
264 | ir->props.open = tm6000_ir_start; | |
265 | ir->props.close = tm6000_ir_stop; | |
266 | ir->props.driver_type = RC_DRIVER_SCANCODE; | |
267 | ||
268 | ir->polling = 50; | |
269 | ||
270 | snprintf(ir->name, sizeof(ir->name), "tm5600/60x0 IR (%s)", | |
271 | dev->name); | |
272 | ||
273 | usb_make_path(dev->udev, ir->phys, sizeof(ir->phys)); | |
274 | strlcat(ir->phys, "/input0", sizeof(ir->phys)); | |
275 | ||
276 | tm6000_ir_change_protocol(ir, IR_TYPE_UNKNOWN); | |
277 | err = ir_input_init(ir_input_dev->input_dev, &ir->ir, IR_TYPE_OTHER); | |
278 | if (err < 0) | |
279 | goto err_out_free; | |
280 | ||
281 | ir_input_dev->input_dev->name = ir->name; | |
282 | ir_input_dev->input_dev->phys = ir->phys; | |
283 | ir_input_dev->input_dev->id.bustype = BUS_USB; | |
284 | ir_input_dev->input_dev->id.version = 1; | |
285 | ir_input_dev->input_dev->id.vendor = le16_to_cpu(dev->udev->descriptor.idVendor); | |
286 | ir_input_dev->input_dev->id.product = le16_to_cpu(dev->udev->descriptor.idProduct); | |
287 | ||
288 | ir_input_dev->input_dev->dev.parent = &dev->udev->dev; | |
289 | ||
290 | if (&dev->int_in) { | |
291 | dprintk("IR over int\n"); | |
292 | ||
293 | ir->int_urb = usb_alloc_urb(0, GFP_KERNEL); | |
294 | ||
295 | pipe = usb_rcvintpipe(dev->udev, | |
296 | dev->int_in.endp->desc.bEndpointAddress | |
297 | & USB_ENDPOINT_NUMBER_MASK); | |
298 | ||
299 | size = usb_maxpacket(dev->udev, pipe, usb_pipeout(pipe)); | |
300 | dprintk("IR max size: %d\n", size); | |
301 | ||
302 | ir->int_urb->transfer_buffer = kzalloc(size, GFP_KERNEL); | |
303 | if (ir->int_urb->transfer_buffer == NULL) { | |
304 | usb_free_urb(ir->int_urb); | |
305 | goto err_out_stop; | |
306 | } | |
307 | dprintk("int interval: %d\n", dev->int_in.endp->desc.bInterval); | |
308 | usb_fill_int_urb(ir->int_urb, dev->udev, pipe, | |
309 | ir->int_urb->transfer_buffer, size, | |
310 | tm6000_ir_urb_received, dev, | |
311 | dev->int_in.endp->desc.bInterval); | |
312 | rc = usb_submit_urb(ir->int_urb, GFP_KERNEL); | |
313 | if (rc) { | |
314 | kfree(ir->int_urb->transfer_buffer); | |
315 | usb_free_urb(ir->int_urb); | |
316 | err = rc; | |
317 | goto err_out_stop; | |
318 | } | |
319 | ir->urb_data = kzalloc(size, GFP_KERNEL); | |
320 | } | |
321 | ||
322 | /* ir register */ | |
323 | err = ir_input_register(ir->input->input_dev, dev->ir_codes, | |
324 | &ir->props, "tm6000"); | |
325 | if (err) | |
326 | goto err_out_stop; | |
327 | ||
328 | return 0; | |
329 | ||
330 | err_out_stop: | |
331 | dev->ir = NULL; | |
332 | err_out_free: | |
333 | kfree(ir_input_dev); | |
334 | kfree(ir); | |
335 | return err; | |
336 | } | |
337 | ||
338 | int tm6000_ir_fini(struct tm6000_core *dev) | |
339 | { | |
340 | struct tm6000_IR *ir = dev->ir; | |
341 | ||
342 | /* skip detach on non attached board */ | |
343 | ||
344 | if (!ir) | |
345 | return 0; | |
346 | ||
347 | ir_input_unregister(ir->input->input_dev); | |
348 | ||
349 | if (ir->int_urb) { | |
350 | usb_kill_urb(ir->int_urb); | |
351 | kfree(ir->int_urb->transfer_buffer); | |
352 | usb_free_urb(ir->int_urb); | |
353 | ir->int_urb = NULL; | |
354 | kfree(ir->urb_data); | |
355 | ir->urb_data = NULL; | |
356 | } | |
357 | ||
358 | kfree(ir->input); | |
359 | ir->input = NULL; | |
360 | kfree(ir); | |
361 | dev->ir = NULL; | |
362 | ||
363 | return 0; | |
364 | } |