66 static int sp8870_writereg (struct sp8870_state* state, u16 reg, u16 data)  in sp8870_writereg()  argument
69 	struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf, .len = 4 };  in sp8870_writereg()
72 	if ((err = i2c_transfer (state->i2c, &msg, 1)) != 1) {  in sp8870_writereg()
80 static int sp8870_readreg (struct sp8870_state* state, u16 reg)  in sp8870_readreg()  argument
85 …struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = b0, .len = 2 …  in sp8870_readreg()
86 			   { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b1, .len = 2 } };  in sp8870_readreg()
88 	ret = i2c_transfer (state->i2c, msg, 2);  in sp8870_readreg()
98 static int sp8870_firmware_upload (struct sp8870_state* state, const struct firmware *fw)  in sp8870_firmware_upload()  argument
113 	sp8870_writereg(state, 0x0F00, 0x0000);  in sp8870_firmware_upload()
116 	sp8870_writereg(state, 0x8F08, ((SP8870_FIRMWARE_SIZE / 2) & 0xFFFF));  in sp8870_firmware_upload()
119 	sp8870_writereg(state, 0x8F0A, ((SP8870_FIRMWARE_SIZE / 2) >> 16));  in sp8870_firmware_upload()
129 		msg.addr = state->config->demod_address;  in sp8870_firmware_upload()
133 		if ((err = i2c_transfer (state->i2c, &msg, 1)) != 1) {  in sp8870_firmware_upload()
145 static void sp8870_microcontroller_stop (struct sp8870_state* state)  in sp8870_microcontroller_stop()  argument
147 	sp8870_writereg(state, 0x0F08, 0x000);  in sp8870_microcontroller_stop()
148 	sp8870_writereg(state, 0x0F09, 0x000);  in sp8870_microcontroller_stop()
151 	sp8870_writereg(state, 0x0F00, 0x000);  in sp8870_microcontroller_stop()
154 static void sp8870_microcontroller_start (struct sp8870_state* state)  in sp8870_microcontroller_start()  argument
156 	sp8870_writereg(state, 0x0F08, 0x000);  in sp8870_microcontroller_start()
157 	sp8870_writereg(state, 0x0F09, 0x000);  in sp8870_microcontroller_start()
160 	sp8870_writereg(state, 0x0F00, 0x001);  in sp8870_microcontroller_start()
163 	sp8870_readreg(state, 0x0D01);  in sp8870_microcontroller_start()
166 static int sp8870_read_data_valid_signal(struct sp8870_state* state)  in sp8870_read_data_valid_signal()  argument
168 	return (sp8870_readreg(state, 0x0D02) > 0);  in sp8870_read_data_valid_signal()
242 static int sp8870_wake_up(struct sp8870_state* state)  in sp8870_wake_up()  argument
245 	return sp8870_writereg(state, 0xC18, 0x00D);  in sp8870_wake_up()
251 	struct sp8870_state* state = fe->demodulator_priv;  in sp8870_set_frontend_parameters()  local
259 	sp8870_microcontroller_stop(state);  in sp8870_set_frontend_parameters()
268 	sp8870_writereg(state, 0x0319, 0x000A);  in sp8870_set_frontend_parameters()
271 	sp8870_writereg(state, 0x031A, 0x0AAB);  in sp8870_set_frontend_parameters()
274 	sp8870_writereg(state, 0x0309, 0x0400);  in sp8870_set_frontend_parameters()
277 	sp8870_writereg(state, 0x030A, 0x0000);  in sp8870_set_frontend_parameters()
281 		sp8870_writereg(state, 0x0311, 0x0002);  in sp8870_set_frontend_parameters()
283 		sp8870_writereg(state, 0x0311, 0x0001);  in sp8870_set_frontend_parameters()
285 		sp8870_writereg(state, 0x0311, 0x0000);  in sp8870_set_frontend_parameters()
289 		sp8870_writereg(state, 0x0338, 0x0000);  in sp8870_set_frontend_parameters()
291 		sp8870_writereg(state, 0x0338, 0x0001);  in sp8870_set_frontend_parameters()
293 	sp8870_writereg(state, 0xc05, reg0xc05);  in sp8870_set_frontend_parameters()
296 	sp8870_readreg(state, 0x200);  in sp8870_set_frontend_parameters()
299 	sp8870_microcontroller_start(state);  in sp8870_set_frontend_parameters()
306 	struct sp8870_state* state = fe->demodulator_priv;  in sp8870_init()  local
309 	sp8870_wake_up(state);  in sp8870_init()
310 	if (state->initialised) return 0;  in sp8870_init()
311 	state->initialised = 1;  in sp8870_init()
318 	if (state->config->request_firmware(fe, &fw, SP8870_DEFAULT_FIRMWARE)) {  in sp8870_init()
323 	if (sp8870_firmware_upload(state, fw)) {  in sp8870_init()
332 	sp8870_writereg(state, 0xc18, 0x00d);  in sp8870_init()
335 	sp8870_microcontroller_stop(state);  in sp8870_init()
338 	sp8870_writereg(state, 0x0301, 0x0003);  in sp8870_init()
341 	sp8870_writereg(state, 0x0C13, 0x0001);  in sp8870_init()
344 	sp8870_writereg(state, 0x0C14, 0x0001);  in sp8870_init()
347 	sp8870_writereg(state, 0x0D00, 0x010);  in sp8870_init()
348 	sp8870_writereg(state, 0x0D01, 0x000);  in sp8870_init()
355 	struct sp8870_state* state = fe->demodulator_priv;  in sp8870_read_status()  local
361 	status = sp8870_readreg (state, 0x0200);  in sp8870_read_status()
365 	signal = sp8870_readreg (state, 0x0303);  in sp8870_read_status()
381 	struct sp8870_state* state = fe->demodulator_priv;  in sp8870_read_ber()  local
387 	ret = sp8870_readreg(state, 0xC08);  in sp8870_read_ber()
393 	ret = sp8870_readreg(state, 0xC07);  in sp8870_read_ber()
408 	struct sp8870_state* state = fe->demodulator_priv;  in sp8870_read_signal_strength()  local
414 	ret = sp8870_readreg (state, 0x306);  in sp8870_read_signal_strength()
420 	ret = sp8870_readreg (state, 0x303);  in sp8870_read_signal_strength()
434 	struct sp8870_state* state = fe->demodulator_priv;  in sp8870_read_uncorrected_blocks()  local
439 	ret = sp8870_readreg(state, 0xC0C);  in sp8870_read_uncorrected_blocks()
464 	struct sp8870_state* state = fe->demodulator_priv;  in sp8870_set_frontend()  local
488 			valid = sp8870_read_data_valid_signal(state);  in sp8870_set_frontend()
522 	struct sp8870_state* state = fe->demodulator_priv;  in sp8870_sleep()  local
525 	return sp8870_writereg(state, 0xC18, 0x000);  in sp8870_sleep()
538 	struct sp8870_state* state = fe->demodulator_priv;  in sp8870_i2c_gate_ctrl()  local
541 		return sp8870_writereg(state, 0x206, 0x001);  in sp8870_i2c_gate_ctrl()
543 		return sp8870_writereg(state, 0x206, 0x000);  in sp8870_i2c_gate_ctrl()
549 	struct sp8870_state* state = fe->demodulator_priv;  in sp8870_release()  local
550 	kfree(state);  in sp8870_release()
558 	struct sp8870_state* state = NULL;  in sp8870_attach()  local
561 	state = kzalloc(sizeof(struct sp8870_state), GFP_KERNEL);  in sp8870_attach()
562 	if (state == NULL) goto error;  in sp8870_attach()
565 	state->config = config;  in sp8870_attach()
566 	state->i2c = i2c;  in sp8870_attach()
567 	state->initialised = 0;  in sp8870_attach()
570 	if (sp8870_readreg(state, 0x0200) < 0) goto error;  in sp8870_attach()
573 	memcpy(&state->frontend.ops, &sp8870_ops, sizeof(struct dvb_frontend_ops));  in sp8870_attach()
574 	state->frontend.demodulator_priv = state;  in sp8870_attach()
575 	return &state->frontend;  in sp8870_attach()
578 	kfree(state);  in sp8870_attach()