70 static int cx22700_writereg (struct cx22700_state* state, u8 reg, u8 data)  in cx22700_writereg()  argument
74 	struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf, .len = 2 };  in cx22700_writereg()
78 	ret = i2c_transfer (state->i2c, &msg, 1);  in cx22700_writereg()
87 static int cx22700_readreg (struct cx22700_state* state, u8 reg)  in cx22700_readreg()  argument
92 …struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = b0, .len = 1 …  in cx22700_readreg()
93 			   { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b1, .len = 1 } };  in cx22700_readreg()
97 	ret = i2c_transfer (state->i2c, msg, 2);  in cx22700_readreg()
104 static int cx22700_set_inversion (struct cx22700_state* state, int inversion)  in cx22700_set_inversion()  argument
114 		val = cx22700_readreg (state, 0x09);  in cx22700_set_inversion()
115 		return cx22700_writereg (state, 0x09, val | 0x01);  in cx22700_set_inversion()
117 		val = cx22700_readreg (state, 0x09);  in cx22700_set_inversion()
118 		return cx22700_writereg (state, 0x09, val & 0xfe);  in cx22700_set_inversion()
124 static int cx22700_set_tps(struct cx22700_state *state,  in cx22700_set_tps()  argument
163 		cx22700_writereg (state, 0x09, cx22700_readreg (state, 0x09 | 0x10));  in cx22700_set_tps()
165 		cx22700_writereg (state, 0x09, cx22700_readreg (state, 0x09 & ~0x10));  in cx22700_set_tps()
170 	cx22700_writereg (state, 0x04, val);  in cx22700_set_tps()
178 	cx22700_writereg (state, 0x05, val);  in cx22700_set_tps()
183 	cx22700_writereg (state, 0x06, val);  in cx22700_set_tps()
185 	cx22700_writereg (state, 0x08, 0x04 | 0x02);  /* use user tps parameters */  in cx22700_set_tps()
186 	cx22700_writereg (state, 0x08, 0x04);         /* restart acquisition */  in cx22700_set_tps()
191 static int cx22700_get_tps(struct cx22700_state *state,  in cx22700_get_tps()  argument
202 	if (!(cx22700_readreg(state, 0x07) & 0x20))  /*  tps valid? */  in cx22700_get_tps()
205 	val = cx22700_readreg (state, 0x01);  in cx22700_get_tps()
217 	val = cx22700_readreg (state, 0x02);  in cx22700_get_tps()
229 	val = cx22700_readreg (state, 0x03);  in cx22700_get_tps()
239 {	struct cx22700_state* state = fe->demodulator_priv;  in cx22700_init()  local
244 	cx22700_writereg (state, 0x00, 0x02);   /*  soft reset */  in cx22700_init()
245 	cx22700_writereg (state, 0x00, 0x00);  in cx22700_init()
250 		cx22700_writereg (state, init_tab[i], init_tab[i+1]);  in cx22700_init()
252 	cx22700_writereg (state, 0x00, 0x01);  in cx22700_init()
259 	struct cx22700_state* state = fe->demodulator_priv;  in cx22700_read_status()  local
261 	u16 rs_ber = (cx22700_readreg (state, 0x0d) << 9)  in cx22700_read_status()
262 		   | (cx22700_readreg (state, 0x0e) << 1);  in cx22700_read_status()
263 	u8 sync = cx22700_readreg (state, 0x07);  in cx22700_read_status()
287 	struct cx22700_state* state = fe->demodulator_priv;  in cx22700_read_ber()  local
289 	*ber = cx22700_readreg (state, 0x0c) & 0x7f;  in cx22700_read_ber()
290 	cx22700_writereg (state, 0x0c, 0x00);  in cx22700_read_ber()
297 	struct cx22700_state* state = fe->demodulator_priv;  in cx22700_read_signal_strength()  local
299 	u16 rs_ber = (cx22700_readreg (state, 0x0d) << 9)  in cx22700_read_signal_strength()
300 		   | (cx22700_readreg (state, 0x0e) << 1);  in cx22700_read_signal_strength()
308 	struct cx22700_state* state = fe->demodulator_priv;  in cx22700_read_snr()  local
310 	u16 rs_ber = (cx22700_readreg (state, 0x0d) << 9)  in cx22700_read_snr()
311 		   | (cx22700_readreg (state, 0x0e) << 1);  in cx22700_read_snr()
319 	struct cx22700_state* state = fe->demodulator_priv;  in cx22700_read_ucblocks()  local
321 	*ucblocks = cx22700_readreg (state, 0x0f);  in cx22700_read_ucblocks()
322 	cx22700_writereg (state, 0x0f, 0x00);  in cx22700_read_ucblocks()
330 	struct cx22700_state* state = fe->demodulator_priv;  in cx22700_set_frontend()  local
332 	cx22700_writereg (state, 0x00, 0x02); /* XXX CHECKME: soft reset*/  in cx22700_set_frontend()
333 	cx22700_writereg (state, 0x00, 0x00);  in cx22700_set_frontend()
340 	cx22700_set_inversion(state, c->inversion);  in cx22700_set_frontend()
341 	cx22700_set_tps(state, c);  in cx22700_set_frontend()
342 	cx22700_writereg (state, 0x37, 0x01);  /* PAL loop filter off */  in cx22700_set_frontend()
343 	cx22700_writereg (state, 0x00, 0x01);  /* restart acquire */  in cx22700_set_frontend()
351 	struct cx22700_state* state = fe->demodulator_priv;  in cx22700_get_frontend()  local
352 	u8 reg09 = cx22700_readreg (state, 0x09);  in cx22700_get_frontend()
355 	return cx22700_get_tps(state, c);  in cx22700_get_frontend()
360 	struct cx22700_state* state = fe->demodulator_priv;  in cx22700_i2c_gate_ctrl()  local
363 		return cx22700_writereg(state, 0x0a, 0x00);  in cx22700_i2c_gate_ctrl()
365 		return cx22700_writereg(state, 0x0a, 0x01);  in cx22700_i2c_gate_ctrl()
379 	struct cx22700_state* state = fe->demodulator_priv;  in cx22700_release()  local
380 	kfree(state);  in cx22700_release()
388 	struct cx22700_state* state = NULL;  in cx22700_attach()  local
391 	state = kzalloc(sizeof(struct cx22700_state), GFP_KERNEL);  in cx22700_attach()
392 	if (state == NULL) goto error;  in cx22700_attach()
395 	state->config = config;  in cx22700_attach()
396 	state->i2c = i2c;  in cx22700_attach()
399 	if (cx22700_readreg(state, 0x07) < 0) goto error;  in cx22700_attach()
402 	memcpy(&state->frontend.ops, &cx22700_ops, sizeof(struct dvb_frontend_ops));  in cx22700_attach()
403 	state->frontend.demodulator_priv = state;  in cx22700_attach()
404 	return &state->frontend;  in cx22700_attach()
407 	kfree(state);  in cx22700_attach()