39 static int atbm8830_write_reg(struct atbm_state *priv, u16 reg, u8 data)  in atbm8830_write_reg()  argument
48 	dev_addr = priv->config->demod_address;  in atbm8830_write_reg()
55 	ret = i2c_transfer(priv->i2c, &msg1, 1);  in atbm8830_write_reg()
59 	ret = i2c_transfer(priv->i2c, &msg2, 1);  in atbm8830_write_reg()
63 static int atbm8830_read_reg(struct atbm_state *priv, u16 reg, u8 *p_data)  in atbm8830_read_reg()  argument
73 	dev_addr = priv->config->demod_address;  in atbm8830_read_reg()
77 	ret = i2c_transfer(priv->i2c, &msg1, 1);  in atbm8830_read_reg()
83 	ret = i2c_transfer(priv->i2c, &msg2, 1);  in atbm8830_read_reg()
96 static inline int atbm8830_reglatch_lock(struct atbm_state *priv, int lock)  in atbm8830_reglatch_lock()  argument
98 	return atbm8830_write_reg(priv, REG_READ_LATCH, lock ? 1 : 0);  in atbm8830_reglatch_lock()
101 static int set_osc_freq(struct atbm_state *priv, u32 freq /*in kHz*/)  in set_osc_freq()  argument
111 	atbm8830_write_reg(priv, REG_OSC_CLK, val);  in set_osc_freq()
112 	atbm8830_write_reg(priv, REG_OSC_CLK + 1, val >> 8);  in set_osc_freq()
113 	atbm8830_write_reg(priv, REG_OSC_CLK + 2, val >> 16);  in set_osc_freq()
118 static int set_if_freq(struct atbm_state *priv, u32 freq /*in kHz*/)  in set_if_freq()  argument
121 	u32 fs = priv->config->osc_clk_freq;  in set_if_freq()
134 		atbm8830_write_reg(priv, REG_TUNER_BASEBAND, 1);  in set_if_freq()
135 		atbm8830_write_reg(priv, REG_IF_FREQ, val);  in set_if_freq()
136 		atbm8830_write_reg(priv, REG_IF_FREQ+1, val >> 8);  in set_if_freq()
137 		atbm8830_write_reg(priv, REG_IF_FREQ+2, val >> 16);  in set_if_freq()
139 		atbm8830_read_reg(priv, REG_ADC_CONFIG, &dat);  in set_if_freq()
141 		atbm8830_write_reg(priv, REG_ADC_CONFIG, dat);  in set_if_freq()
144 		atbm8830_write_reg(priv, REG_TUNER_BASEBAND, 0);  in set_if_freq()
146 		atbm8830_read_reg(priv, REG_ADC_CONFIG, &dat);  in set_if_freq()
149 		atbm8830_write_reg(priv, REG_ADC_CONFIG, dat);  in set_if_freq()
151 		if (priv->config->zif_swap_iq)  in set_if_freq()
152 			atbm8830_write_reg(priv, REG_SWAP_I_Q, 0x03);  in set_if_freq()
154 			atbm8830_write_reg(priv, REG_SWAP_I_Q, 0x01);  in set_if_freq()
160 static int is_locked(struct atbm_state *priv, u8 *locked)  in is_locked()  argument
164 	atbm8830_read_reg(priv, REG_LOCK_STATUS, &status);  in is_locked()
171 static int set_agc_config(struct atbm_state *priv,  in set_agc_config()  argument
178 	atbm8830_write_reg(priv, REG_AGC_MIN, min);  in set_agc_config()
179 	atbm8830_write_reg(priv, REG_AGC_MAX, max);  in set_agc_config()
180 	atbm8830_write_reg(priv, REG_AGC_HOLD_LOOP, hold_loop);  in set_agc_config()
185 static int set_static_channel_mode(struct atbm_state *priv)  in set_static_channel_mode()  argument
190 		atbm8830_write_reg(priv, 0x099B + i, 0x08);  in set_static_channel_mode()
192 	atbm8830_write_reg(priv, 0x095B, 0x7F);  in set_static_channel_mode()
193 	atbm8830_write_reg(priv, 0x09CB, 0x01);  in set_static_channel_mode()
194 	atbm8830_write_reg(priv, 0x09CC, 0x7F);  in set_static_channel_mode()
195 	atbm8830_write_reg(priv, 0x09CD, 0x7F);  in set_static_channel_mode()
196 	atbm8830_write_reg(priv, 0x0E01, 0x20);  in set_static_channel_mode()
199 	atbm8830_write_reg(priv, 0x0B03, 0x0A);  in set_static_channel_mode()
200 	atbm8830_write_reg(priv, 0x0935, 0x10);  in set_static_channel_mode()
201 	atbm8830_write_reg(priv, 0x0936, 0x08);  in set_static_channel_mode()
202 	atbm8830_write_reg(priv, 0x093E, 0x08);  in set_static_channel_mode()
203 	atbm8830_write_reg(priv, 0x096E, 0x06);  in set_static_channel_mode()
206 	atbm8830_write_reg(priv, 0x0B09, 0x00);  in set_static_channel_mode()
208 	atbm8830_write_reg(priv, 0x0B0A, 0x08);  in set_static_channel_mode()
213 static int set_ts_config(struct atbm_state *priv)  in set_ts_config()  argument
215 	const struct atbm8830_config *cfg = priv->config;  in set_ts_config()
218 	atbm8830_write_reg(priv, REG_TS_SERIAL, cfg->serial_ts ? 1 : 0);  in set_ts_config()
219 	atbm8830_write_reg(priv, REG_TS_CLK_MODE, cfg->serial_ts ? 1 : 0);  in set_ts_config()
221 	atbm8830_write_reg(priv, REG_TS_SAMPLE_EDGE,  in set_ts_config()
224 	atbm8830_write_reg(priv, REG_TS_CLK_FREERUN,  in set_ts_config()
232 	struct atbm_state *priv = fe->demodulator_priv;  in atbm8830_init()  local
233 	const struct atbm8830_config *cfg = priv->config;  in atbm8830_init()
236 	set_osc_freq(priv, cfg->osc_clk_freq);  in atbm8830_init()
239 	set_if_freq(priv, cfg->if_freq);  in atbm8830_init()
242 	set_agc_config(priv, cfg->agc_min, cfg->agc_max,  in atbm8830_init()
246 	set_static_channel_mode(priv);  in atbm8830_init()
248 	set_ts_config(priv);  in atbm8830_init()
250 	atbm8830_write_reg(priv, 0x000A, 0);  in atbm8830_init()
253 	atbm8830_write_reg(priv, 0x020C, 11);  in atbm8830_init()
256 	atbm8830_write_reg(priv, REG_DEMOD_RUN, 1);  in atbm8830_init()
272 	struct atbm_state *priv = fe->demodulator_priv;  in atbm8830_set_fe()  local
290 		is_locked(priv, &locked);  in atbm8830_set_fe()
341 	struct atbm_state *priv = fe->demodulator_priv;  in atbm8830_read_status()  local
348 	is_locked(priv, &locked);  in atbm8830_read_status()
355 	atbm8830_read_reg(priv, REG_AGC_LOCK, &agc_locked);  in atbm8830_read_status()
363 	struct atbm_state *priv = fe->demodulator_priv;  in atbm8830_read_ber()  local
369 	atbm8830_reglatch_lock(priv, 1);  in atbm8830_read_ber()
371 	atbm8830_read_reg(priv, REG_FRAME_ERR_CNT + 1, &t);  in atbm8830_read_ber()
374 	atbm8830_read_reg(priv, REG_FRAME_ERR_CNT, &t);  in atbm8830_read_ber()
377 	atbm8830_reglatch_lock(priv, 0);  in atbm8830_read_ber()
387 	struct atbm_state *priv = fe->demodulator_priv;  in atbm8830_read_signal_strength()  local
392 	atbm8830_reglatch_lock(priv, 1);  in atbm8830_read_signal_strength()
394 	atbm8830_read_reg(priv, REG_AGC_PWM_VAL + 1, &t);  in atbm8830_read_signal_strength()
397 	atbm8830_read_reg(priv, REG_AGC_PWM_VAL, &t);  in atbm8830_read_signal_strength()
400 	atbm8830_reglatch_lock(priv, 0);  in atbm8830_read_signal_strength()
426 	struct atbm_state *priv = fe->demodulator_priv;  in atbm8830_i2c_gate_ctrl()  local
428 	return atbm8830_write_reg(priv, REG_I2C_GATE, enable ? 1 : 0);  in atbm8830_i2c_gate_ctrl()
466 	struct atbm_state *priv = NULL;  in atbm8830_attach()  local
474 	priv = kzalloc(sizeof(struct atbm_state), GFP_KERNEL);  in atbm8830_attach()
475 	if (priv == NULL)  in atbm8830_attach()
478 	priv->config = config;  in atbm8830_attach()
479 	priv->i2c = i2c;  in atbm8830_attach()
482 	if (atbm8830_read_reg(priv, REG_CHIP_ID, &data) != 0) {  in atbm8830_attach()
484 			__func__, priv->config->demod_address);  in atbm8830_attach()
489 	memcpy(&priv->frontend.ops, &atbm8830_ops,  in atbm8830_attach()
491 	priv->frontend.demodulator_priv = priv;  in atbm8830_attach()
493 	atbm8830_init(&priv->frontend);  in atbm8830_attach()
495 	atbm8830_i2c_gate_ctrl(&priv->frontend, 1);  in atbm8830_attach()
497 	return &priv->frontend;  in atbm8830_attach()
501 	kfree(priv);  in atbm8830_attach()