Lines Matching +full:gpio +full:- +full:mux +full:- +full:clock
2 * cx18 gpio functions
4 * Derived from ivtv-gpio.c
22 * 02111-1307 USA
25 #include "cx18-driver.h"
26 #include "cx18-io.h"
27 #include "cx18-cards.h"
28 #include "cx18-gpio.h"
29 #include "tuner-xc2028.h"
31 /********************* GPIO stuffs *********************/
33 /* GPIO registers */
41 * HVR-1600 GPIO pins, courtesy of Hauppauge:
54 u32 dir_lo = cx->gpio_dir & 0xffff; in gpio_write()
55 u32 val_lo = cx->gpio_val & 0xffff; in gpio_write()
56 u32 dir_hi = cx->gpio_dir >> 16; in gpio_write()
57 u32 val_hi = cx->gpio_val >> 16; in gpio_write()
74 mutex_lock(&cx->gpio_lock); in gpio_update()
75 cx->gpio_val = (cx->gpio_val & ~mask) | (data & mask); in gpio_update()
77 mutex_unlock(&cx->gpio_lock); in gpio_update()
106 * GPIO Multiplexer - logical device
112 mutex_lock(&cx->gpio_lock); in gpiomux_log_status()
113 CX18_INFO_DEV(sd, "GPIO: direction 0x%08x, value 0x%08x\n", in gpiomux_log_status()
114 cx->gpio_dir, cx->gpio_val); in gpiomux_log_status()
115 mutex_unlock(&cx->gpio_lock); in gpiomux_log_status()
124 * FIXME - work out the cx->active/audio_input mess - this is in gpiomux_s_radio()
128 gpio_update(cx, cx->card->gpio_audio_input.mask, in gpiomux_s_radio()
129 cx->card->gpio_audio_input.radio); in gpiomux_s_radio()
138 switch (cx->card->audio_inputs[cx->audio_input].muxer_input) { in gpiomux_s_std()
140 data = cx->card->gpio_audio_input.linein; in gpiomux_s_std()
143 data = cx->card->gpio_audio_input.tuner; in gpiomux_s_std()
147 * FIXME - work out the cx->active/audio_input mess - this is in gpiomux_s_std()
151 data = cx->card->gpio_audio_input.tuner; in gpiomux_s_std()
154 gpio_update(cx, cx->card->gpio_audio_input.mask, data); in gpiomux_s_std()
166 data = cx->card->gpio_audio_input.tuner; in gpiomux_s_audio_routing()
169 data = cx->card->gpio_audio_input.linein; in gpiomux_s_audio_routing()
172 data = cx->card->gpio_audio_input.radio; in gpiomux_s_audio_routing()
175 return -EINVAL; in gpiomux_s_audio_routing()
177 gpio_update(cx, cx->card->gpio_audio_input.mask, data); in gpiomux_s_audio_routing()
201 * GPIO Reset Controller - logical device
207 mutex_lock(&cx->gpio_lock); in resetctrl_log_status()
208 CX18_INFO_DEV(sd, "GPIO: direction 0x%08x, value 0x%08x\n", in resetctrl_log_status()
209 cx->gpio_dir, cx->gpio_val); in resetctrl_log_status()
210 mutex_unlock(&cx->gpio_lock); in resetctrl_log_status()
219 p = &cx->card->gpio_i2c_slave_reset; in resetctrl_reset()
222 gpio_reset_seq(cx, p->active_lo_mask, p->active_hi_mask, in resetctrl_reset()
223 p->msecs_asserted, p->msecs_recovery); in resetctrl_reset()
227 * Assert timing for the Z8F0811 on HVR-1600 boards: in resetctrl_reset()
228 * 1. Assert RESET for min of 4 clock cycles at 18.432 MHz to in resetctrl_reset()
230 * 2. Reset then takes 66 WDT cycles at 10 kHz + 16 xtal clock in resetctrl_reset()
234 * since we don't normally drive it (GPIO 1?) for the in resetctrl_reset()
235 * HVR-1600 in resetctrl_reset()
240 gpio_reset_seq(cx, p->ir_reset_mask, 0, in resetctrl_reset()
241 p->msecs_asserted, p->msecs_recovery); in resetctrl_reset()
244 if (cx->card->tuners[0].tuner == TUNER_XC2028) in resetctrl_reset()
245 gpio_reset_seq(cx, (1 << cx->card->xceive_pin), 0, in resetctrl_reset()
266 mutex_lock(&cx->gpio_lock); in cx18_gpio_init()
267 cx->gpio_dir = cx->card->gpio_init.direction; in cx18_gpio_init()
268 cx->gpio_val = cx->card->gpio_init.initial_value; in cx18_gpio_init()
270 if (cx->card->tuners[0].tuner == TUNER_XC2028) { in cx18_gpio_init()
271 cx->gpio_dir |= 1 << cx->card->xceive_pin; in cx18_gpio_init()
272 cx->gpio_val |= 1 << cx->card->xceive_pin; in cx18_gpio_init()
275 if (cx->gpio_dir == 0) { in cx18_gpio_init()
276 mutex_unlock(&cx->gpio_lock); in cx18_gpio_init()
280 CX18_DEBUG_INFO("GPIO initial dir: %08x/%08x out: %08x/%08x\n", in cx18_gpio_init()
287 mutex_unlock(&cx->gpio_lock); in cx18_gpio_init()
298 sd = &cx->sd_gpiomux; in cx18_gpio_register()
300 str = "gpio-mux"; in cx18_gpio_register()
303 sd = &cx->sd_resetctrl; in cx18_gpio_register()
305 str = "gpio-reset-ctrl"; in cx18_gpio_register()
308 return -EINVAL; in cx18_gpio_register()
313 snprintf(sd->name, sizeof(sd->name), "%s %s", cx->v4l2_dev.name, str); in cx18_gpio_register()
314 sd->grp_id = hw; in cx18_gpio_register()
315 return v4l2_device_register_subdev(&cx->v4l2_dev, sd); in cx18_gpio_register()
322 if (cx->card->gpio_i2c_slave_reset.ir_reset_mask == 0) in cx18_reset_ir_gpio()
327 v4l2_subdev_call(&cx->sd_resetctrl, in cx18_reset_ir_gpio()
331 /* This symbol is exported for use by lirc_pvr150 for the IR-blaster */
337 struct cx18_i2c_algo_callback_data *cb_data = algo->data; in cx18_reset_tuner_gpio()
338 struct cx18 *cx = cb_data->cx; in cx18_reset_tuner_gpio()
341 cx->card->tuners[0].tuner != TUNER_XC2028) in cx18_reset_tuner_gpio()
345 return v4l2_subdev_call(&cx->sd_resetctrl, in cx18_reset_tuner_gpio()