52 static int l64781_writereg (struct l64781_state* state, u8 reg, u8 data)  in l64781_writereg()  argument
56 	struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf, .len = 2 };  in l64781_writereg()
58 	if ((ret = i2c_transfer(state->i2c, &msg, 1)) != 1)  in l64781_writereg()
65 static int l64781_readreg (struct l64781_state* state, u8 reg)  in l64781_readreg()  argument
70 …struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = b0, .len = 1 …  in l64781_readreg()
71 			   { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b1, .len = 1 } };  in l64781_readreg()
73 	ret = i2c_transfer(state->i2c, msg, 2);  in l64781_readreg()
80 static void apply_tps (struct l64781_state* state)  in apply_tps()  argument
82 	l64781_writereg (state, 0x2a, 0x00);  in apply_tps()
83 	l64781_writereg (state, 0x2a, 0x01);  in apply_tps()
90 	l64781_writereg (state, 0x2a, 0x02);  in apply_tps()
94 static void reset_afc (struct l64781_state* state)  in reset_afc()  argument
98 	l64781_writereg (state, 0x07, 0x9e); /* stall AFC */  in reset_afc()
99 	l64781_writereg (state, 0x08, 0);    /* AFC INIT FREQ */  in reset_afc()
100 	l64781_writereg (state, 0x09, 0);  in reset_afc()
101 	l64781_writereg (state, 0x0a, 0);  in reset_afc()
102 	l64781_writereg (state, 0x07, 0x8e);  in reset_afc()
103 	l64781_writereg (state, 0x0e, 0);    /* AGC gain to zero in beginning */  in reset_afc()
104 	l64781_writereg (state, 0x11, 0x80); /* stall TIM */  in reset_afc()
105 	l64781_writereg (state, 0x10, 0);    /* TIM_OFFSET_LSB */  in reset_afc()
106 	l64781_writereg (state, 0x12, 0);  in reset_afc()
107 	l64781_writereg (state, 0x13, 0);  in reset_afc()
108 	l64781_writereg (state, 0x11, 0x00);  in reset_afc()
111 static int reset_and_configure (struct l64781_state* state)  in reset_and_configure()  argument
117 	return (i2c_transfer(state->i2c, &msg, 1) == 1) ? 0 : -ENODEV;  in reset_and_configure()
123 	struct l64781_state* state = fe->demodulator_priv;  in apply_frontend_param()  local
217 	l64781_writereg (state, 0x04, val0x04);  in apply_frontend_param()
218 	l64781_writereg (state, 0x05, val0x05);  in apply_frontend_param()
219 	l64781_writereg (state, 0x06, val0x06);  in apply_frontend_param()
221 	reset_afc (state);  in apply_frontend_param()
224 	l64781_writereg (state, 0x15,  in apply_frontend_param()
226 	l64781_writereg (state, 0x16, init_freq & 0xff);  in apply_frontend_param()
227 	l64781_writereg (state, 0x17, (init_freq >> 8) & 0xff);  in apply_frontend_param()
228 	l64781_writereg (state, 0x18, (init_freq >> 16) & 0xff);  in apply_frontend_param()
230 	l64781_writereg (state, 0x1b, spi_bias & 0xff);  in apply_frontend_param()
231 	l64781_writereg (state, 0x1c, (spi_bias >> 8) & 0xff);  in apply_frontend_param()
232 	l64781_writereg (state, 0x1d, ((spi_bias >> 16) & 0x7f) |  in apply_frontend_param()
235 	l64781_writereg (state, 0x22, ddfs_offset_fixed & 0xff);  in apply_frontend_param()
236 	l64781_writereg (state, 0x23, (ddfs_offset_fixed >> 8) & 0x3f);  in apply_frontend_param()
238 	l64781_readreg (state, 0x00);  /*  clear interrupt registers... */  in apply_frontend_param()
239 	l64781_readreg (state, 0x01);  /*  dto. */  in apply_frontend_param()
241 	apply_tps (state);  in apply_frontend_param()
249 	struct l64781_state* state = fe->demodulator_priv;  in get_frontend()  local
253 	tmp = l64781_readreg(state, 0x04);  in get_frontend()
279 	tmp = l64781_readreg(state, 0x05);  in get_frontend()
319 	tmp = l64781_readreg(state, 0x06);  in get_frontend()
351 	tmp = l64781_readreg (state, 0x1d);  in get_frontend()
354 	tmp = (int) (l64781_readreg (state, 0x08) |  in get_frontend()
355 		     (l64781_readreg (state, 0x09) << 8) |  in get_frontend()
356 		     (l64781_readreg (state, 0x0a) << 16));  in get_frontend()
364 	struct l64781_state* state = fe->demodulator_priv;  in l64781_read_status()  local
365 	int sync = l64781_readreg (state, 0x32);  in l64781_read_status()
366 	int gain = l64781_readreg (state, 0x0e);  in l64781_read_status()
368 	l64781_readreg (state, 0x00);  /*  clear interrupt registers... */  in l64781_read_status()
369 	l64781_readreg (state, 0x01);  /*  dto. */  in l64781_read_status()
393 	struct l64781_state* state = fe->demodulator_priv;  in l64781_read_ber()  local
397 	*ber = l64781_readreg (state, 0x39)  in l64781_read_ber()
398 	    | (l64781_readreg (state, 0x3a) << 8);  in l64781_read_ber()
405 	struct l64781_state* state = fe->demodulator_priv;  in l64781_read_signal_strength()  local
407 	u8 gain = l64781_readreg (state, 0x0e);  in l64781_read_signal_strength()
415 	struct l64781_state* state = fe->demodulator_priv;  in l64781_read_snr()  local
417 	u8 avg_quality = 0xff - l64781_readreg (state, 0x33);  in l64781_read_snr()
425 	struct l64781_state* state = fe->demodulator_priv;  in l64781_read_ucblocks()  local
427 	*ucblocks = l64781_readreg (state, 0x37)  in l64781_read_ucblocks()
428 	   | (l64781_readreg (state, 0x38) << 8);  in l64781_read_ucblocks()
435 	struct l64781_state* state = fe->demodulator_priv;  in l64781_sleep()  local
438 	return l64781_writereg (state, 0x3e, 0x5a);  in l64781_sleep()
443 	struct l64781_state* state = fe->demodulator_priv;  in l64781_init()  local
445 	reset_and_configure (state);  in l64781_init()
448 	l64781_writereg (state, 0x3e, 0xa5);  in l64781_init()
451 	l64781_writereg (state, 0x2a, 0x04);  in l64781_init()
452 	l64781_writereg (state, 0x2a, 0x00);  in l64781_init()
456 	l64781_writereg (state, 0x07, 0x8e);  in l64781_init()
459 	l64781_writereg (state, 0x0b, 0x81);  in l64781_init()
462 	l64781_writereg (state, 0x0c, 0x84);  in l64781_init()
465 	l64781_writereg (state, 0x0d, 0x8c);  in l64781_init()
473 	l64781_writereg (state, 0x1e, 0x09);  in l64781_init()
476 	if (state->first) {  in l64781_init()
477 		state->first = 0;  in l64781_init()
495 	struct l64781_state* state = fe->demodulator_priv;  in l64781_release()  local
496 	kfree(state);  in l64781_release()
504 	struct l64781_state* state = NULL;  in l64781_attach()  local
512 	state = kzalloc(sizeof(struct l64781_state), GFP_KERNEL);  in l64781_attach()
513 	if (state == NULL) goto error;  in l64781_attach()
516 	state->config = config;  in l64781_attach()
517 	state->i2c = i2c;  in l64781_attach()
518 	state->first = 1;  in l64781_attach()
524 	if (reset_and_configure(state) < 0) {  in l64781_attach()
530 	if (i2c_transfer(state->i2c, msg, 2) != 2) {  in l64781_attach()
536 	reg0x3e = l64781_readreg(state, 0x3e);  in l64781_attach()
545 	l64781_writereg (state, 0x3e, 0x5a);  in l64781_attach()
548 	if (l64781_readreg(state, 0x1a) != 0) {  in l64781_attach()
554 	l64781_writereg (state, 0x3e, 0xa5);  in l64781_attach()
557 	if (l64781_readreg(state, 0x1a) != 0xa1) {  in l64781_attach()
563 	memcpy(&state->frontend.ops, &l64781_ops, sizeof(struct dvb_frontend_ops));  in l64781_attach()
564 	state->frontend.demodulator_priv = state;  in l64781_attach()
565 	return &state->frontend;  in l64781_attach()
569 		l64781_writereg (state, 0x3e, reg0x3e);  /* restore reg 0x3e */  in l64781_attach()
570 	kfree(state);  in l64781_attach()