46 struct lirc_rx51 {  struct
64 static void lirc_rx51_on(struct lirc_rx51 *lirc_rx51)  in lirc_rx51_on()  argument
66 	omap_dm_timer_set_pwm(lirc_rx51->pwm_timer, 0, 1,  in lirc_rx51_on()
70 static void lirc_rx51_off(struct lirc_rx51 *lirc_rx51)  in lirc_rx51_off()  argument
72 	omap_dm_timer_set_pwm(lirc_rx51->pwm_timer, 0, 1,  in lirc_rx51_off()
76 static int init_timing_params(struct lirc_rx51 *lirc_rx51)  in init_timing_params()  argument
80 	load = -(lirc_rx51->fclk_khz * 1000 / lirc_rx51->freq);  in init_timing_params()
81 	match = -(lirc_rx51->duty_cycle * -load / 100);  in init_timing_params()
82 	omap_dm_timer_set_load(lirc_rx51->pwm_timer, 1, load);  in init_timing_params()
83 	omap_dm_timer_set_match(lirc_rx51->pwm_timer, 1, match);  in init_timing_params()
84 	omap_dm_timer_write_counter(lirc_rx51->pwm_timer, TIMER_MAX_VALUE - 2);  in init_timing_params()
85 	omap_dm_timer_start(lirc_rx51->pwm_timer);  in init_timing_params()
86 	omap_dm_timer_set_int_enable(lirc_rx51->pulse_timer, 0);  in init_timing_params()
87 	omap_dm_timer_start(lirc_rx51->pulse_timer);  in init_timing_params()
89 	lirc_rx51->match = 0;  in init_timing_params()
96 static int pulse_timer_set_timeout(struct lirc_rx51 *lirc_rx51, int usec)  in pulse_timer_set_timeout()  argument
102 	if (lirc_rx51->match == 0)  in pulse_timer_set_timeout()
103 		counter = omap_dm_timer_read_counter(lirc_rx51->pulse_timer);  in pulse_timer_set_timeout()
105 		counter = lirc_rx51->match;  in pulse_timer_set_timeout()
107 	counter += (u32)(lirc_rx51->fclk_khz * usec / (1000));  in pulse_timer_set_timeout()
108 	omap_dm_timer_set_match(lirc_rx51->pulse_timer, 1, counter);  in pulse_timer_set_timeout()
109 	omap_dm_timer_set_int_enable(lirc_rx51->pulse_timer,  in pulse_timer_set_timeout()
111 	if (tics_after(omap_dm_timer_read_counter(lirc_rx51->pulse_timer),  in pulse_timer_set_timeout()
121 	struct lirc_rx51 *lirc_rx51 = ptr;  in lirc_rx51_interrupt_handler()  local
123 	retval = omap_dm_timer_read_status(lirc_rx51->pulse_timer);  in lirc_rx51_interrupt_handler()
128 		dev_err_ratelimited(lirc_rx51->dev,  in lirc_rx51_interrupt_handler()
131 	omap_dm_timer_write_status(lirc_rx51->pulse_timer,  in lirc_rx51_interrupt_handler()
135 	if (lirc_rx51->wbuf_index < 0) {  in lirc_rx51_interrupt_handler()
136 		dev_err_ratelimited(lirc_rx51->dev,  in lirc_rx51_interrupt_handler()
138 				lirc_rx51->wbuf_index);  in lirc_rx51_interrupt_handler()
147 		if (lirc_rx51->wbuf_index >= WBUF_LEN)  in lirc_rx51_interrupt_handler()
149 		if (lirc_rx51->wbuf[lirc_rx51->wbuf_index] == -1)  in lirc_rx51_interrupt_handler()
152 		if (lirc_rx51->wbuf_index % 2)  in lirc_rx51_interrupt_handler()
153 			lirc_rx51_off(lirc_rx51);  in lirc_rx51_interrupt_handler()
155 			lirc_rx51_on(lirc_rx51);  in lirc_rx51_interrupt_handler()
157 		retval = pulse_timer_set_timeout(lirc_rx51,  in lirc_rx51_interrupt_handler()
158 					lirc_rx51->wbuf[lirc_rx51->wbuf_index]);  in lirc_rx51_interrupt_handler()
159 		lirc_rx51->wbuf_index++;  in lirc_rx51_interrupt_handler()
166 	lirc_rx51_off(lirc_rx51);  in lirc_rx51_interrupt_handler()
167 	lirc_rx51->wbuf_index = -1;  in lirc_rx51_interrupt_handler()
168 	omap_dm_timer_stop(lirc_rx51->pwm_timer);  in lirc_rx51_interrupt_handler()
169 	omap_dm_timer_stop(lirc_rx51->pulse_timer);  in lirc_rx51_interrupt_handler()
170 	omap_dm_timer_set_int_enable(lirc_rx51->pulse_timer, 0);  in lirc_rx51_interrupt_handler()
171 	wake_up_interruptible(&lirc_rx51->wqueue);  in lirc_rx51_interrupt_handler()
176 static int lirc_rx51_init_port(struct lirc_rx51 *lirc_rx51)  in lirc_rx51_init_port()  argument
179 	int retval, pwm_timer = lirc_rx51->pwm_timer_num;  in lirc_rx51_init_port()
181 	lirc_rx51->pwm_timer = omap_dm_timer_request_specific(pwm_timer);  in lirc_rx51_init_port()
182 	if (lirc_rx51->pwm_timer == NULL) {  in lirc_rx51_init_port()
183 		dev_err(lirc_rx51->dev, ": Error requesting GPT%d timer\n",  in lirc_rx51_init_port()
188 	lirc_rx51->pulse_timer = omap_dm_timer_request();  in lirc_rx51_init_port()
189 	if (lirc_rx51->pulse_timer == NULL) {  in lirc_rx51_init_port()
190 		dev_err(lirc_rx51->dev, ": Error requesting pulse timer\n");  in lirc_rx51_init_port()
195 	omap_dm_timer_set_source(lirc_rx51->pwm_timer, OMAP_TIMER_SRC_SYS_CLK);  in lirc_rx51_init_port()
196 	omap_dm_timer_set_source(lirc_rx51->pulse_timer,  in lirc_rx51_init_port()
199 	omap_dm_timer_enable(lirc_rx51->pwm_timer);  in lirc_rx51_init_port()
200 	omap_dm_timer_enable(lirc_rx51->pulse_timer);  in lirc_rx51_init_port()
202 	lirc_rx51->irq_num = omap_dm_timer_get_irq(lirc_rx51->pulse_timer);  in lirc_rx51_init_port()
203 	retval = request_irq(lirc_rx51->irq_num, lirc_rx51_interrupt_handler,  in lirc_rx51_init_port()
204 			     IRQF_SHARED, "lirc_pulse_timer", lirc_rx51);  in lirc_rx51_init_port()
206 		dev_err(lirc_rx51->dev, ": Failed to request interrupt line\n");  in lirc_rx51_init_port()
210 	clk_fclk = omap_dm_timer_get_fclk(lirc_rx51->pwm_timer);  in lirc_rx51_init_port()
211 	lirc_rx51->fclk_khz = clk_fclk->rate / 1000;  in lirc_rx51_init_port()
216 	omap_dm_timer_free(lirc_rx51->pulse_timer);  in lirc_rx51_init_port()
218 	omap_dm_timer_free(lirc_rx51->pwm_timer);  in lirc_rx51_init_port()
223 static int lirc_rx51_free_port(struct lirc_rx51 *lirc_rx51)  in lirc_rx51_free_port()  argument
225 	omap_dm_timer_set_int_enable(lirc_rx51->pulse_timer, 0);  in lirc_rx51_free_port()
226 	free_irq(lirc_rx51->irq_num, lirc_rx51);  in lirc_rx51_free_port()
227 	lirc_rx51_off(lirc_rx51);  in lirc_rx51_free_port()
228 	omap_dm_timer_disable(lirc_rx51->pwm_timer);  in lirc_rx51_free_port()
229 	omap_dm_timer_disable(lirc_rx51->pulse_timer);  in lirc_rx51_free_port()
230 	omap_dm_timer_free(lirc_rx51->pwm_timer);  in lirc_rx51_free_port()
231 	omap_dm_timer_free(lirc_rx51->pulse_timer);  in lirc_rx51_free_port()
232 	lirc_rx51->wbuf_index = -1;  in lirc_rx51_free_port()
241 	struct lirc_rx51 *lirc_rx51 = file->private_data;  in lirc_rx51_write()  local
251 	wait_event_interruptible(lirc_rx51->wqueue, lirc_rx51->wbuf_index < 0);  in lirc_rx51_write()
253 	if (copy_from_user(lirc_rx51->wbuf, buf, n))  in lirc_rx51_write()
258 		if (lirc_rx51->wbuf[i] < 0)  in lirc_rx51_write()
261 	init_timing_params(lirc_rx51);  in lirc_rx51_write()
263 		lirc_rx51->wbuf[count] = -1; /* Insert termination mark */  in lirc_rx51_write()
269 	lirc_rx51->pdata->set_max_mpu_wakeup_lat(lirc_rx51->dev, 50);  in lirc_rx51_write()
271 	lirc_rx51_on(lirc_rx51);  in lirc_rx51_write()
272 	lirc_rx51->wbuf_index = 1;  in lirc_rx51_write()
273 	pulse_timer_set_timeout(lirc_rx51, lirc_rx51->wbuf[0]);  in lirc_rx51_write()
279 	wait_event_interruptible(lirc_rx51->wqueue, lirc_rx51->wbuf_index < 0);  in lirc_rx51_write()
282 	lirc_rx51->pdata->set_max_mpu_wakeup_lat(lirc_rx51->dev, -1);  in lirc_rx51_write()
293 	struct lirc_rx51 *lirc_rx51 = filep->private_data;  in lirc_rx51_ioctl()  local
328 			dev_err(lirc_rx51->dev, ": invalid duty cycle %d\n",  in lirc_rx51_ioctl()
333 		lirc_rx51->duty_cycle = ivalue;  in lirc_rx51_ioctl()
342 			dev_err(lirc_rx51->dev, ": invalid carrier freq %d\n",  in lirc_rx51_ioctl()
347 		lirc_rx51->freq = ivalue;  in lirc_rx51_ioctl()
366 	struct lirc_rx51 *lirc_rx51 = lirc_get_pdata(file);  in lirc_rx51_open()  local
367 	BUG_ON(!lirc_rx51);  in lirc_rx51_open()
369 	file->private_data = lirc_rx51;  in lirc_rx51_open()
371 	if (test_and_set_bit(1, &lirc_rx51->device_is_open))  in lirc_rx51_open()
374 	return lirc_rx51_init_port(lirc_rx51);  in lirc_rx51_open()
379 	struct lirc_rx51 *lirc_rx51 = file->private_data;  in lirc_rx51_release()  local
381 	lirc_rx51_free_port(lirc_rx51);  in lirc_rx51_release()
383 	clear_bit(1, &lirc_rx51->device_is_open);  in lirc_rx51_release()
388 static struct lirc_rx51 lirc_rx51 = {  variable
408 	.data		= &lirc_rx51,
425 	if (test_and_set_bit(1, &lirc_rx51.device_is_open))  in lirc_rx51_suspend()
428 	clear_bit(1, &lirc_rx51.device_is_open);  in lirc_rx51_suspend()
448 	lirc_rx51.pdata = dev->dev.platform_data;  in lirc_rx51_probe()
449 	lirc_rx51.pwm_timer_num = lirc_rx51.pdata->pwm_timer;  in lirc_rx51_probe()
450 	lirc_rx51.dev = &dev->dev;  in lirc_rx51_probe()
453 	init_waitqueue_head(&lirc_rx51.wqueue);  in lirc_rx51_probe()
456 		dev_err(lirc_rx51.dev, ": lirc_register_driver failed: %d\n",  in lirc_rx51_probe()
460 	dev_info(lirc_rx51.dev, "registration ok, minor: %d, pwm: %d\n",  in lirc_rx51_probe()
461 		 lirc_rx51_driver.minor, lirc_rx51.pwm_timer_num);  in lirc_rx51_probe()