2     Auvitek AU8522 QAM/8VSB demodulator driver
6     Copyright (C) 2005-2008 Auvitek International, Ltd.
41 /* 16 bit registers, 8 bit values */
45 	u8 buf[] = { (reg >> 8) | 0x80, reg & 0xff, data };  in au8522_writereg()
47 	struct i2c_msg msg = { .addr = state->config.demod_address,  in au8522_writereg()
50 	ret = i2c_transfer(state->i2c, &msg, 1);  in au8522_writereg()
56 	return (ret != 1) ? -1 : 0;  in au8522_writereg()
63 	u8 b0[] = { (reg >> 8) | 0x40, reg & 0xff };  in au8522_readreg()
67 		{ .addr = state->config.demod_address, .flags = 0,  in au8522_readreg()
69 		{ .addr = state->config.demod_address, .flags = I2C_M_RD,  in au8522_readreg()
72 	ret = i2c_transfer(state->i2c, msg, 2);  in au8522_readreg()
83 	struct au8522_state *state = fe->demodulator_priv;  in au8522_i2c_gate_ctrl()
87 	if (state->operational_mode == AU8522_ANALOG_MODE) {  in au8522_i2c_gate_ctrl()
104 	struct au8522_state *state = fe->demodulator_priv;  in au8522_analog_i2c_gate_ctrl()
143 	struct au8522_led_config *led_config = state->config.led_cfg;  in au8522_led_gpio_enable()
146 	/* bail out if we can't control an LED */  in au8522_led_gpio_enable()
147 	if (!led_config || !led_config->gpio_output ||  in au8522_led_gpio_enable()
148 	    !led_config->gpio_output_enable || !led_config->gpio_output_disable)  in au8522_led_gpio_enable()
152 			     (led_config->gpio_output & ~0xc000));  in au8522_led_gpio_enable()
155 		val &= ~((led_config->gpio_output_enable >> 8) & 0xff);  in au8522_led_gpio_enable()
156 		val |=  (led_config->gpio_output_enable & 0xff);  in au8522_led_gpio_enable()
159 		val &= ~((led_config->gpio_output_disable >> 8) & 0xff);  in au8522_led_gpio_enable()
160 		val |=  (led_config->gpio_output_disable & 0xff);  in au8522_led_gpio_enable()
163 			       (led_config->gpio_output & ~0xc000), val);  in au8522_led_gpio_enable()
166 /* led = 0 | off
167  * led = 1 | signal ok
168  * led = 2 | signal strong
169  * led < 0 | only light led if leds are currently off
171 int au8522_led_ctrl(struct au8522_state *state, int led)  in au8522_led_ctrl()  argument
173 	struct au8522_led_config *led_config = state->config.led_cfg;  in au8522_led_ctrl()
176 	/* bail out if we can't control an LED */  in au8522_led_ctrl()
177 	if (!led_config || !led_config->gpio_leds ||  in au8522_led_ctrl()
178 	    !led_config->num_led_states || !led_config->led_states)  in au8522_led_ctrl()
181 	if (led < 0) {  in au8522_led_ctrl()
182 		/* if LED is already lit, then leave it as-is */  in au8522_led_ctrl()
183 		if (state->led_state)  in au8522_led_ctrl()
186 			led *= -1;  in au8522_led_ctrl()
189 	/* toggle LED if changing state */  in au8522_led_ctrl()
190 	if (state->led_state != led) {  in au8522_led_ctrl()
193 		dprintk("%s: %d\n", __func__, led);  in au8522_led_ctrl()
198 				     (led_config->gpio_leds & ~0xc000));  in au8522_led_ctrl()
201 		for (i = 0; i < led_config->num_led_states; i++)  in au8522_led_ctrl()
202 			val &= ~led_config->led_states[i];  in au8522_led_ctrl()
204 		/* set selected LED state */  in au8522_led_ctrl()
205 		if (led < led_config->num_led_states)  in au8522_led_ctrl()
206 			val |= led_config->led_states[led];  in au8522_led_ctrl()
207 		else if (led_config->num_led_states)  in au8522_led_ctrl()
209 			led_config->led_states[led_config->num_led_states - 1];  in au8522_led_ctrl()
212 				      (led_config->gpio_leds & ~0xc000), val);  in au8522_led_ctrl()
216 		state->led_state = led;  in au8522_led_ctrl()
218 		if (led == 0)  in au8522_led_ctrl()
228 	struct au8522_state *state = fe->demodulator_priv;  in au8522_init()
231 	state->operational_mode = AU8522_DIGITAL_MODE;  in au8522_init()
236 	state->current_frequency = 0;  in au8522_init()
237 	state->current_modulation = VSB_8;  in au8522_init()
249 	struct au8522_state *state = fe->demodulator_priv;  in au8522_sleep()
253 	if (state->operational_mode == AU8522_ANALOG_MODE) {  in au8522_sleep()
261 	/* turn off led */  in au8522_sleep()
267 	state->current_frequency = 0;  in au8522_sleep()
276 MODULE_DESCRIPTION("Auvitek AU8522 QAM-B/ATSC Demodulator driver");