67 static struct ep9461e_dev *ep9461e;  variable
69 static void ep9461e_rx_select(struct ep9461e_dev *ep9461e);
70 static void ep9461e_rx_manual_select(struct ep9461e_dev *ep9461e);
72 static void i2c_wr(struct ep9461e_dev *ep9461e, u16 reg, u8 *val, u32 n)  in i2c_wr()  argument
75 	struct i2c_client *client = ep9461e->client;  in i2c_wr()
88 		dev_err(ep9461e->dev, "writing register 0x%x from 0x%x failed\n",  in i2c_wr()
93 			dev_dbg(ep9461e->dev, "I2C write 0x%02x = 0x%02x\n",  in i2c_wr()
97 			dev_dbg(ep9461e->dev,  in i2c_wr()
102 			dev_dbg(ep9461e->dev,  in i2c_wr()
107 			dev_dbg(ep9461e->dev,  in i2c_wr()
114 static void i2c_rd(struct ep9461e_dev *ep9461e, u16 reg, u8 *val, u32 n)  in i2c_rd()  argument
117 	struct i2c_client *client = ep9461e->client;  in i2c_rd()
135 		dev_err(ep9461e->dev, "reading register 0x%x from 0x%x failed\n",  in i2c_rd()
140 static void i2c_rd8(struct ep9461e_dev *ep9461e, u16 reg, u8 *val)  in i2c_rd8()  argument
142 	i2c_rd(ep9461e, reg, val, 1);  in i2c_rd8()
145 static void i2c_wr8(struct ep9461e_dev *ep9461e, u16 reg, u8 buf)  in i2c_wr8()  argument
147 	i2c_wr(ep9461e, reg, &buf, 1);  in i2c_wr8()
150 static void i2c_wr8_and_or(struct ep9461e_dev *ep9461e, u16 reg, u32 mask,  in i2c_wr8_and_or()  argument
155 	i2c_rd8(ep9461e, reg, &val_p);  in i2c_wr8_and_or()
156 	i2c_wr8(ep9461e, reg, (val_p & mask) | val);  in i2c_wr8_and_or()
179 	struct ep9461e_dev *ep9461e = g_ep9461e;  in hdmirxsel_show()  local
181 	dev_info(ep9461e->dev, "%s: hdmi rx select state: %d\n",  in hdmirxsel_show()
182 			__func__, ep9461e->hdmi_rx_sel);  in hdmirxsel_show()
184 	return sprintf(buf, "%d\n", ep9461e->hdmi_rx_sel);  in hdmirxsel_show()
191 	struct ep9461e_dev *ep9461e = g_ep9461e;  in hdmirxsel_store()  local
197 		dev_dbg(ep9461e->dev, "state: %d\n", hdmirxstate);  in hdmirxsel_store()
198 		ep9461e->hdmi_rx_sel = hdmirxstate;  in hdmirxsel_store()
199 		if (ep9461e->auto_switch_en | ep9461e->cec_switch_en)  in hdmirxsel_store()
200 			ep9461e->auto_switch_en = ep9461e->cec_switch_en = 0;  in hdmirxsel_store()
201 		ep9461e_rx_select(ep9461e);  in hdmirxsel_store()
203 		dev_err(ep9461e->dev, "write hdmi_rx_sel failed!!!\n");  in hdmirxsel_store()
212 	struct ep9461e_dev *ep9461e = g_ep9461e;  in hdmiautoswitch_show()  local
214 	dev_info(ep9461e->dev, "hdmi rx select auto_switch state: %d\n",  in hdmiautoswitch_show()
215 				ep9461e->auto_switch_en);  in hdmiautoswitch_show()
217 	return sprintf(buf, "%d\n", ep9461e->auto_switch_en);  in hdmiautoswitch_show()
224 	struct ep9461e_dev *ep9461e = g_ep9461e;  in hdmiautoswitch_store()  local
230 		dev_dbg(ep9461e->dev, "state: %d\n", hdmiautoswitch);  in hdmiautoswitch_store()
231 		ep9461e->auto_switch_en = hdmiautoswitch;  in hdmiautoswitch_store()
232 		ep9461e_rx_select(ep9461e);  in hdmiautoswitch_store()
234 		dev_err(ep9461e->dev, "write hdmi auto switch failed!!!\n");  in hdmiautoswitch_store()
243 static inline bool detect_rx_signal(struct ep9461e_dev *ep9461e)  in detect_rx_signal()  argument
247 	i2c_rd8(ep9461e, RX_SIGNAL_DETECT, &val);  in detect_rx_signal()
254 static void ep9461e_init(struct ep9461e_dev *ep9461e)  in ep9461e_init()  argument
256 	ep9461e->power_up_chip_en = false;  in ep9461e_init()
257 	ep9461e->auto_switch_en = false;  in ep9461e_init()
258 	ep9461e->hdmi_rx_sel = 0;  in ep9461e_init()
259 	ep9461e->err_cnt = 0;  in ep9461e_init()
261 	if (ep9461e->power_up_chip_en) {  in ep9461e_init()
262 		i2c_wr8_and_or(ep9461e, GENERAL_CONTROL, ~MASK_POWER,  in ep9461e_init()
265 	ep9461e_rx_select(ep9461e);  in ep9461e_init()
266 	schedule_delayed_work(&ep9461e->work_i2c_poll, msecs_to_jiffies(1000));  in ep9461e_init()
269 static void ep9461e_rx_manual_select(struct ep9461e_dev *ep9461e)  in ep9461e_rx_manual_select()  argument
271 	i2c_wr8(ep9461e, RX_SEL_CONTROL, ep9461e->hdmi_rx_sel);  in ep9461e_rx_manual_select()
274 static void ep9461e_rx_select(struct ep9461e_dev *ep9461e)  in ep9461e_rx_select()  argument
278 	if (ep9461e->auto_switch_en) {  in ep9461e_rx_select()
279 		i2c_wr8_and_or(ep9461e, GENERAL_CONTROL, ~MASK_AUTO_SWITCH,  in ep9461e_rx_select()
282 		ep9461e_rx_manual_select(ep9461e);  in ep9461e_rx_select()
285 	ret = detect_rx_signal(ep9461e);  in ep9461e_rx_select()
287 		dev_info(ep9461e->dev, "Detect HDMI RX valid signal!\n");  in ep9461e_rx_select()
289 		dev_err(ep9461e->dev, "HDMI RX has no valid signal!\n");  in ep9461e_rx_select()
297 	struct ep9461e_dev *ep9461e =  in ep9461e_work_i2c_poll()  local
300 	ret = detect_rx_signal(ep9461e);  in ep9461e_work_i2c_poll()
301 	if (!ret && (ep9461e->err_cnt < 10)) {  in ep9461e_work_i2c_poll()
302 		ep9461e->err_cnt++;  in ep9461e_work_i2c_poll()
303 		dev_err(ep9461e->dev,  in ep9461e_work_i2c_poll()
305 			ep9461e->err_cnt);  in ep9461e_work_i2c_poll()
306 		if (ep9461e->err_cnt >= 10)  in ep9461e_work_i2c_poll()
307 			dev_err(ep9461e->dev,  in ep9461e_work_i2c_poll()
310 		ep9461e->err_cnt = 0;  in ep9461e_work_i2c_poll()
312 	schedule_delayed_work(&ep9461e->work_i2c_poll, msecs_to_jiffies(1000));  in ep9461e_work_i2c_poll()
331 	struct ep9461e_dev *ep9461e;  in ep9461e_probe()  local
345 	ep9461e = devm_kzalloc(dev, sizeof(struct ep9461e_dev), GFP_KERNEL);  in ep9461e_probe()
346 	if (!ep9461e)  in ep9461e_probe()
349 	ep9461e->client = client;  in ep9461e_probe()
350 	ep9461e->dev = dev;  in ep9461e_probe()
355 		dev_err(ep9461e->dev,  in ep9461e_probe()
360 	mutex_init(&ep9461e->confctl_mutex);  in ep9461e_probe()
364 		dev_err(ep9461e->dev, "failed to create attr hdmirxsel!\n");  in ep9461e_probe()
371 		dev_err(ep9461e->dev,  in ep9461e_probe()
376 	INIT_DELAYED_WORK(&ep9461e->work_i2c_poll, ep9461e_work_i2c_poll);  in ep9461e_probe()
378 	ep9461e_init(ep9461e);  in ep9461e_probe()
379 	g_ep9461e = ep9461e;  in ep9461e_probe()
381 	dev_info(ep9461e->dev, "%s found @ 0x%x (%s)\n",  in ep9461e_probe()
397 	cancel_delayed_work_sync(&ep9461e->work_i2c_poll);  in ep9461e_remove()
402 	mutex_destroy(&ep9461e->confctl_mutex);  in ep9461e_remove()