90 static int cx24113_writereg(struct cx24113_state *state, int reg, int data)  in cx24113_writereg()  argument
93 	struct i2c_msg msg = { .addr = state->config->i2c_addr,  in cx24113_writereg()
95 	int err = i2c_transfer(state->i2c, &msg, 1);  in cx24113_writereg()
105 static int cx24113_readreg(struct cx24113_state *state, u8 reg)  in cx24113_readreg()  argument
110 		{ .addr = state->config->i2c_addr,  in cx24113_readreg()
112 		{ .addr = state->config->i2c_addr,  in cx24113_readreg()
116 	ret = i2c_transfer(state->i2c, msg, 2);  in cx24113_readreg()
127 static void cx24113_set_parameters(struct cx24113_state *state)  in cx24113_set_parameters()  argument
131 	r = cx24113_readreg(state, 0x10) & 0x82;  in cx24113_set_parameters()
132 	r |= state->icp_mode;  in cx24113_set_parameters()
133 	r |= state->icp_man << 4;  in cx24113_set_parameters()
134 	r |= state->icp_dig << 2;  in cx24113_set_parameters()
135 	r |= state->prescaler_mode << 5;  in cx24113_set_parameters()
136 	cx24113_writereg(state, 0x10, r);  in cx24113_set_parameters()
138 	r = (state->icp_auto_low  << 0) | (state->icp_auto_mlow << 2)  in cx24113_set_parameters()
139 		| (state->icp_auto_mhi << 4) | (state->icp_auto_hi << 6);  in cx24113_set_parameters()
140 	cx24113_writereg(state, 0x11, r);  in cx24113_set_parameters()
142 	if (state->rev == REV_CX24113) {  in cx24113_set_parameters()
143 		r = cx24113_readreg(state, 0x20) & 0xec;  in cx24113_set_parameters()
144 		r |= state->lna_gain;  in cx24113_set_parameters()
145 		r |= state->rfvga_bias_ctrl << 4;  in cx24113_set_parameters()
146 		cx24113_writereg(state, 0x20, r);  in cx24113_set_parameters()
149 	r = cx24113_readreg(state, 0x12) & 0x03;  in cx24113_set_parameters()
150 	r |= state->acp_on << 2;  in cx24113_set_parameters()
151 	r |= state->bs_delay << 4;  in cx24113_set_parameters()
152 	cx24113_writereg(state, 0x12, r);  in cx24113_set_parameters()
154 	r = cx24113_readreg(state, 0x18) & 0x40;  in cx24113_set_parameters()
155 	r |= state->vco_shift;  in cx24113_set_parameters()
156 	if (state->vco_band == VCOBANDSEL_6)  in cx24113_set_parameters()
159 		r |= (state->vco_band << 1);  in cx24113_set_parameters()
160 	cx24113_writereg(state, 0x18, r);  in cx24113_set_parameters()
162 	r  = cx24113_readreg(state, 0x14) & 0x20;  in cx24113_set_parameters()
163 	r |= (state->vco_mode << 6) | ((state->bs_freqcnt >> 8) & 0x1f);  in cx24113_set_parameters()
164 	cx24113_writereg(state, 0x14, r);  in cx24113_set_parameters()
165 	cx24113_writereg(state, 0x15, (state->bs_freqcnt        & 0xff));  in cx24113_set_parameters()
167 	cx24113_writereg(state, 0x16, (state->bs_rdiv >> 4) & 0xff);  in cx24113_set_parameters()
168 	r = (cx24113_readreg(state, 0x17) & 0x0f) |  in cx24113_set_parameters()
169 		((state->bs_rdiv & 0x0f) << 4);  in cx24113_set_parameters()
170 	cx24113_writereg(state, 0x17, r);  in cx24113_set_parameters()
187 static int cx24113_set_gain_settings(struct cx24113_state *state,  in cx24113_set_gain_settings()  argument
190 	u8 ampout = cx24113_readreg(state, 0x1d) & 0xf0,  in cx24113_set_gain_settings()
191 	   vga    = cx24113_readreg(state, 0x1f) & 0x3f,  in cx24113_set_gain_settings()
192 	   rfvga  = cx24113_readreg(state, 0x20) & 0xf3;  in cx24113_set_gain_settings()
193 	u8 gain_level = power_estimation >= state->tuner_gain_thres;  in cx24113_set_gain_settings()
196 			power_estimation, state->tuner_gain_thres,  in cx24113_set_gain_settings()
197 			state->gain_level, gain_level);  in cx24113_set_gain_settings()
199 	if (gain_level == state->gain_level)  in cx24113_set_gain_settings()
211 	state->gain_level = gain_level;  in cx24113_set_gain_settings()
213 	cx24113_writereg(state, 0x1d, ampout);  in cx24113_set_gain_settings()
214 	cx24113_writereg(state, 0x1f, vga);  in cx24113_set_gain_settings()
215 	cx24113_writereg(state, 0x20, rfvga);  in cx24113_set_gain_settings()
220 static int cx24113_set_Fref(struct cx24113_state *state, u8 high)  in cx24113_set_Fref()  argument
222 	u8 xtal = cx24113_readreg(state, 0x02);  in cx24113_set_Fref()
223 	if (state->rev == 0x43 && state->vcodiv == VCODIV4)  in cx24113_set_Fref()
229 	return cx24113_writereg(state, 0x02, xtal);  in cx24113_set_Fref()
232 static int cx24113_enable(struct cx24113_state *state, u8 enable)  in cx24113_enable()  argument
234 	u8 r21 = (cx24113_readreg(state, 0x21) & 0xc0) | enable;  in cx24113_enable()
235 	if (state->rev == REV_CX24113)  in cx24113_enable()
237 	return cx24113_writereg(state, 0x21, r21);  in cx24113_enable()
240 static int cx24113_set_bandwidth(struct cx24113_state *state, u32 bandwidth_khz)  in cx24113_set_bandwidth()  argument
262 	return cx24113_writereg(state, 0x1e, r);  in cx24113_set_bandwidth()
265 static int cx24113_set_clk_inversion(struct cx24113_state *state, u8 on)  in cx24113_set_clk_inversion()  argument
267 	u8 r = (cx24113_readreg(state, 0x10) & 0x7f) | ((on & 0x1) << 7);  in cx24113_set_clk_inversion()
268 	return cx24113_writereg(state, 0x10, r);  in cx24113_set_clk_inversion()
273 	struct cx24113_state *state = fe->tuner_priv;  in cx24113_get_status()  local
274 	u8 r = (cx24113_readreg(state, 0x10) & 0x02) >> 1;  in cx24113_get_status()
281 static u8 cx24113_set_ref_div(struct cx24113_state *state, u8 refdiv)  in cx24113_set_ref_div()  argument
283 	if (state->rev == 0x43 && state->vcodiv == VCODIV4)  in cx24113_set_ref_div()
285 	return state->refdiv = refdiv;  in cx24113_set_ref_div()
288 static void cx24113_calc_pll_nf(struct cx24113_state *state, u16 *n, s32 *f)  in cx24113_calc_pll_nf()  argument
296 	s32 freq_hz = state->frequency * 1000;  in cx24113_calc_pll_nf()
298 	if (state->config->xtal_khz < 20000)  in cx24113_calc_pll_nf()
303 	if (state->rev == REV_CX24113) {  in cx24113_calc_pll_nf()
304 		if (state->frequency >= 1100000)  in cx24113_calc_pll_nf()
309 		if (state->frequency >= 1165000)  in cx24113_calc_pll_nf()
314 	state->vcodiv = vcodiv;  in cx24113_calc_pll_nf()
319 		R = cx24113_set_ref_div(state, R + 1);  in cx24113_calc_pll_nf()
323 		N /= (state->config->xtal_khz) * factor * 2;  in cx24113_calc_pll_nf()
338 	do_div(dividend, state->config->xtal_khz * 1000 * factor * 2);  in cx24113_calc_pll_nf()
345 	if (state->Fwindow_enabled) {  in cx24113_calc_pll_nf()
352 			r = cx24113_readreg(state, 0x10);  in cx24113_calc_pll_nf()
353 			cx24113_writereg(state, 0x10, r | (1 << 6));  in cx24113_calc_pll_nf()
363 static void cx24113_set_nfr(struct cx24113_state *state, u16 n, s32 f, u8 r)  in cx24113_set_nfr()  argument
366 	cx24113_writereg(state, 0x19, (n >> 1) & 0xff);  in cx24113_set_nfr()
369 	cx24113_writereg(state, 0x1a, reg);  in cx24113_set_nfr()
371 	cx24113_writereg(state, 0x1b, (f >> 3) & 0xff);  in cx24113_set_nfr()
373 	reg = cx24113_readreg(state, 0x1c) & 0x1f;  in cx24113_set_nfr()
374 	cx24113_writereg(state, 0x1c, reg | ((f & 0x7) << 5));  in cx24113_set_nfr()
376 	cx24113_set_Fref(state, r - 1);  in cx24113_set_nfr()
379 static int cx24113_set_frequency(struct cx24113_state *state, u32 frequency)  in cx24113_set_frequency()  argument
385 	r = cx24113_readreg(state, 0x14);  in cx24113_set_frequency()
386 	cx24113_writereg(state, 0x14, r & 0x3f);  in cx24113_set_frequency()
388 	r = cx24113_readreg(state, 0x10);  in cx24113_set_frequency()
389 	cx24113_writereg(state, 0x10, r & 0xbf);  in cx24113_set_frequency()
391 	state->frequency = frequency;  in cx24113_set_frequency()
395 	cx24113_calc_pll_nf(state, &n, &f);  in cx24113_set_frequency()
396 	cx24113_set_nfr(state, n, f, state->refdiv);  in cx24113_set_frequency()
398 	r = cx24113_readreg(state, 0x18) & 0xbf;  in cx24113_set_frequency()
399 	if (state->vcodiv != VCODIV2)  in cx24113_set_frequency()
401 	cx24113_writereg(state, 0x18, r);  in cx24113_set_frequency()
406 	r = cx24113_readreg(state, 0x1c) & 0xef;  in cx24113_set_frequency()
407 	cx24113_writereg(state, 0x1c, r | (1 << 4));  in cx24113_set_frequency()
413 	struct cx24113_state *state = fe->tuner_priv;  in cx24113_init()  local
416 	state->tuner_gain_thres = -50;  in cx24113_init()
417 	state->gain_level = 255; /* to force a gain-setting initialization */  in cx24113_init()
418 	state->icp_mode = 0;  in cx24113_init()
420 	if (state->config->xtal_khz < 11000) {  in cx24113_init()
421 		state->icp_auto_hi  = ICP_LEVEL4;  in cx24113_init()
422 		state->icp_auto_mhi  = ICP_LEVEL4;  in cx24113_init()
423 		state->icp_auto_mlow = ICP_LEVEL3;  in cx24113_init()
424 		state->icp_auto_low = ICP_LEVEL3;  in cx24113_init()
426 		state->icp_auto_hi  = ICP_LEVEL4;  in cx24113_init()
427 		state->icp_auto_mhi  = ICP_LEVEL4;  in cx24113_init()
428 		state->icp_auto_mlow = ICP_LEVEL3;  in cx24113_init()
429 		state->icp_auto_low = ICP_LEVEL2;  in cx24113_init()
432 	state->icp_dig = ICP_LEVEL3;  in cx24113_init()
433 	state->icp_man = ICP_LEVEL1;  in cx24113_init()
434 	state->acp_on  = 1;  in cx24113_init()
435 	state->vco_mode = 0;  in cx24113_init()
436 	state->vco_shift = 0;  in cx24113_init()
437 	state->vco_band = VCOBANDSEL_1;  in cx24113_init()
438 	state->bs_delay = 8;  in cx24113_init()
439 	state->bs_freqcnt = 0x0fff;  in cx24113_init()
440 	state->bs_rdiv = 0x0fff;  in cx24113_init()
441 	state->prescaler_mode = 0;  in cx24113_init()
442 	state->lna_gain = LNA_MAX_GAIN;  in cx24113_init()
443 	state->rfvga_bias_ctrl = 1;  in cx24113_init()
444 	state->Fwindow_enabled = 1;  in cx24113_init()
446 	cx24113_set_Fref(state, 0);  in cx24113_init()
447 	cx24113_enable(state, 0x3d);  in cx24113_init()
448 	cx24113_set_parameters(state);  in cx24113_init()
450 	cx24113_set_gain_settings(state, -30);  in cx24113_init()
452 	cx24113_set_bandwidth(state, 18025);  in cx24113_init()
453 	cx24113_set_clk_inversion(state, 1);  in cx24113_init()
455 	if (state->config->xtal_khz >= 40000)  in cx24113_init()
456 		ret = cx24113_writereg(state, 0x02,  in cx24113_init()
457 			(cx24113_readreg(state, 0x02) & 0xfb) | (1 << 2));  in cx24113_init()
459 		ret = cx24113_writereg(state, 0x02,  in cx24113_init()
460 			(cx24113_readreg(state, 0x02) & 0xfb) | (0 << 2));  in cx24113_init()
468 	struct cx24113_state *state = fe->tuner_priv;  in cx24113_set_params()  local
477 	cx24113_set_bandwidth(state, bw);  in cx24113_set_params()
479 	cx24113_set_frequency(state, c->frequency);  in cx24113_set_params()
491 	struct cx24113_state *state = fe->tuner_priv;  in cx24113_agc_callback()  local
502 			if (cx24113_agc_table[state->gain_level][i] > s)  in cx24113_agc_callback()
505 	} while (cx24113_set_gain_settings(state, s));  in cx24113_agc_callback()
511 	struct cx24113_state *state = fe->tuner_priv;  in cx24113_get_frequency()  local
512 	*frequency = state->frequency;  in cx24113_get_frequency()
518 	struct cx24113_state *state = fe->tuner_priv;  in cx24113_release()  local
521 	kfree(state);  in cx24113_release()
545 	struct cx24113_state *state = kzalloc(sizeof(*state), GFP_KERNEL);  in cx24113_attach()  local
548 	if (!state)  in cx24113_attach()
552 	state->config = config;  in cx24113_attach()
553 	state->i2c = i2c;  in cx24113_attach()
559 	cx24113_readreg(state, 0x00);  in cx24113_attach()
561 	rc = cx24113_readreg(state, 0x00);  in cx24113_attach()
566 	state->rev = rc;  in cx24113_attach()
576 		cx_err("unsupported device id: %x\n", state->rev);  in cx24113_attach()
579 	state->ver = cx24113_readreg(state, 0x01);  in cx24113_attach()
580 	cx_info("version: %x\n", state->ver);  in cx24113_attach()
585 	fe->tuner_priv = state;  in cx24113_attach()
589 	kfree(state);  in cx24113_attach()