39 static int i2c_writebytes (struct sp887x_state* state, u8 *buf, u8 len)  in i2c_writebytes()  argument
41 	struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf, .len = len };  in i2c_writebytes()
44 	if ((err = i2c_transfer (state->i2c, &msg, 1)) != 1) {  in i2c_writebytes()
46 			__func__, state->config->demod_address, err);  in i2c_writebytes()
53 static int sp887x_writereg (struct sp887x_state* state, u16 reg, u16 data)  in sp887x_writereg()  argument
56 	struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = b0, .len = 4 };  in sp887x_writereg()
59 	if ((ret = i2c_transfer(state->i2c, &msg, 1)) != 1) {  in sp887x_writereg()
76 static int sp887x_readreg (struct sp887x_state* state, u16 reg)  in sp887x_readreg()  argument
81 	struct i2c_msg msg[] = {{ .addr = state->config->demod_address, .flags = 0, .buf = b0, .len = 2 },  in sp887x_readreg()
82 			 { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b1, .len = 2 }};  in sp887x_readreg()
84 	if ((ret = i2c_transfer(state->i2c, msg, 2)) != 2) {  in sp887x_readreg()
92 static void sp887x_microcontroller_stop (struct sp887x_state* state)  in sp887x_microcontroller_stop()  argument
95 	sp887x_writereg(state, 0xf08, 0x000);  in sp887x_microcontroller_stop()
96 	sp887x_writereg(state, 0xf09, 0x000);  in sp887x_microcontroller_stop()
99 	sp887x_writereg(state, 0xf00, 0x000);  in sp887x_microcontroller_stop()
102 static void sp887x_microcontroller_start (struct sp887x_state* state)  in sp887x_microcontroller_start()  argument
105 	sp887x_writereg(state, 0xf08, 0x000);  in sp887x_microcontroller_start()
106 	sp887x_writereg(state, 0xf09, 0x000);  in sp887x_microcontroller_start()
109 	sp887x_writereg(state, 0xf00, 0x001);  in sp887x_microcontroller_start()
112 static void sp887x_setup_agc (struct sp887x_state* state)  in sp887x_setup_agc()  argument
116 	sp887x_writereg(state, 0x33c, 0x054);  in sp887x_setup_agc()
117 	sp887x_writereg(state, 0x33b, 0x04c);  in sp887x_setup_agc()
118 	sp887x_writereg(state, 0x328, 0x000);  in sp887x_setup_agc()
119 	sp887x_writereg(state, 0x327, 0x005);  in sp887x_setup_agc()
120 	sp887x_writereg(state, 0x326, 0x001);  in sp887x_setup_agc()
121 	sp887x_writereg(state, 0x325, 0x001);  in sp887x_setup_agc()
122 	sp887x_writereg(state, 0x324, 0x001);  in sp887x_setup_agc()
123 	sp887x_writereg(state, 0x318, 0x050);  in sp887x_setup_agc()
124 	sp887x_writereg(state, 0x317, 0x3fe);  in sp887x_setup_agc()
125 	sp887x_writereg(state, 0x316, 0x001);  in sp887x_setup_agc()
126 	sp887x_writereg(state, 0x313, 0x005);  in sp887x_setup_agc()
127 	sp887x_writereg(state, 0x312, 0x002);  in sp887x_setup_agc()
128 	sp887x_writereg(state, 0x306, 0x000);  in sp887x_setup_agc()
129 	sp887x_writereg(state, 0x303, 0x000);  in sp887x_setup_agc()
139 	struct sp887x_state* state = fe->demodulator_priv;  in sp887x_initial_setup()  local
154 	sp887x_writereg(state, 0xf1a, 0x000);  in sp887x_initial_setup()
156 	sp887x_microcontroller_stop (state);  in sp887x_initial_setup()
162 	sp887x_writereg(state, 0x8f08, 0x1fff);  in sp887x_initial_setup()
165 	sp887x_writereg(state, 0x8f0a, 0x0000);  in sp887x_initial_setup()
182 		if ((err = i2c_writebytes (state, buf, c+2)) < 0) {  in sp887x_initial_setup()
190 	sp887x_writereg(state, 0xc13, 0x001);  in sp887x_initial_setup()
193 	sp887x_writereg(state, 0xc14, 0x000);  in sp887x_initial_setup()
196 	sp887x_writereg(state, 0xc1a, 0x872);  in sp887x_initial_setup()
197 	sp887x_writereg(state, 0xc1b, 0x001);  in sp887x_initial_setup()
198 	sp887x_writereg(state, 0xc1c, 0x000); /* parallel mode (serial mode == 1) */  in sp887x_initial_setup()
199 	sp887x_writereg(state, 0xc1a, 0x871);  in sp887x_initial_setup()
202 	sp887x_writereg(state, 0x301, 0x002);  in sp887x_initial_setup()
204 	sp887x_setup_agc(state);  in sp887x_initial_setup()
207 	sp887x_writereg(state, 0xd00, 0x010);  in sp887x_initial_setup()
208 	sp887x_writereg(state, 0x0d1, 0x000);  in sp887x_initial_setup()
305 static void sp887x_correct_offsets (struct sp887x_state* state,  in sp887x_correct_offsets()  argument
341 	sp887x_writereg(state, 0x319, srate_correction[bw_index] >> 12);  in sp887x_correct_offsets()
342 	sp887x_writereg(state, 0x31a, srate_correction[bw_index] & 0xfff);  in sp887x_correct_offsets()
345 	sp887x_writereg(state, 0x309, frequency_shift >> 12);  in sp887x_correct_offsets()
346 	sp887x_writereg(state, 0x30a, frequency_shift & 0xfff);  in sp887x_correct_offsets()
352 	struct sp887x_state* state = fe->demodulator_priv;  in sp887x_setup_frontend_parameters()  local
365 	sp887x_microcontroller_stop(state);  in sp887x_setup_frontend_parameters()
380 	sp887x_readreg(state, 0x200);  in sp887x_setup_frontend_parameters()
382 	sp887x_correct_offsets(state, p, actual_freq);  in sp887x_setup_frontend_parameters()
392 	sp887x_writereg(state, 0x311, val);  in sp887x_setup_frontend_parameters()
396 		sp887x_writereg(state, 0x338, 0x000);  in sp887x_setup_frontend_parameters()
398 		sp887x_writereg(state, 0x338, 0x001);  in sp887x_setup_frontend_parameters()
400 	sp887x_writereg(state, 0xc05, reg0xc05);  in sp887x_setup_frontend_parameters()
412 	sp887x_writereg(state, 0xf14, 0x160 | val);  in sp887x_setup_frontend_parameters()
413 	sp887x_writereg(state, 0xf15, 0x000);  in sp887x_setup_frontend_parameters()
415 	sp887x_microcontroller_start(state);  in sp887x_setup_frontend_parameters()
421 	struct sp887x_state* state = fe->demodulator_priv;  in sp887x_read_status()  local
422 	u16 snr12 = sp887x_readreg(state, 0xf16);  in sp887x_read_status()
423 	u16 sync0x200 = sp887x_readreg(state, 0x200);  in sp887x_read_status()
424 	u16 sync0xf17 = sp887x_readreg(state, 0xf17);  in sp887x_read_status()
455 	struct sp887x_state* state = fe->demodulator_priv;  in sp887x_read_ber()  local
457 	*ber = (sp887x_readreg(state, 0xc08) & 0x3f) |  in sp887x_read_ber()
458 	       (sp887x_readreg(state, 0xc07) << 6);  in sp887x_read_ber()
459 	sp887x_writereg(state, 0xc08, 0x000);  in sp887x_read_ber()
460 	sp887x_writereg(state, 0xc07, 0x000);  in sp887x_read_ber()
469 	struct sp887x_state* state = fe->demodulator_priv;  in sp887x_read_signal_strength()  local
471 	u16 snr12 = sp887x_readreg(state, 0xf16);  in sp887x_read_signal_strength()
480 	struct sp887x_state* state = fe->demodulator_priv;  in sp887x_read_snr()  local
482 	u16 snr12 = sp887x_readreg(state, 0xf16);  in sp887x_read_snr()
490 	struct sp887x_state* state = fe->demodulator_priv;  in sp887x_read_ucblocks()  local
492 	*ucblocks = sp887x_readreg(state, 0xc0c);  in sp887x_read_ucblocks()
501 	struct sp887x_state* state = fe->demodulator_priv;  in sp887x_i2c_gate_ctrl()  local
504 		return sp887x_writereg(state, 0x206, 0x001);  in sp887x_i2c_gate_ctrl()
506 		return sp887x_writereg(state, 0x206, 0x000);  in sp887x_i2c_gate_ctrl()
512 	struct sp887x_state* state = fe->demodulator_priv;  in sp887x_sleep()  local
515 	sp887x_writereg(state, 0xc18, 0x000);  in sp887x_sleep()
522 	struct sp887x_state* state = fe->demodulator_priv;  in sp887x_init()  local
526 	if (!state->initialised) {  in sp887x_init()
529 		ret = state->config->request_firmware(fe, &fw, SP887X_DEFAULT_FIRMWARE);  in sp887x_init()
542 		state->initialised = 1;  in sp887x_init()
546 	sp887x_writereg(state, 0xc18, 0x00d);  in sp887x_init()
561 	struct sp887x_state* state = fe->demodulator_priv;  in sp887x_release()  local
562 	kfree(state);  in sp887x_release()
570 	struct sp887x_state* state = NULL;  in sp887x_attach()  local
573 	state = kzalloc(sizeof(struct sp887x_state), GFP_KERNEL);  in sp887x_attach()
574 	if (state == NULL) goto error;  in sp887x_attach()
577 	state->config = config;  in sp887x_attach()
578 	state->i2c = i2c;  in sp887x_attach()
579 	state->initialised = 0;  in sp887x_attach()
582 	if (sp887x_readreg(state, 0x0200) < 0) goto error;  in sp887x_attach()
585 	memcpy(&state->frontend.ops, &sp887x_ops, sizeof(struct dvb_frontend_ops));  in sp887x_attach()
586 	state->frontend.demodulator_priv = state;  in sp887x_attach()
587 	return &state->frontend;  in sp887x_attach()
590 	kfree(state);  in sp887x_attach()