105 static int si2165_write(struct si2165_state *state, const u16 reg,  in si2165_write()  argument
113 		dev_warn(&state->i2c->dev,  in si2165_write()
122 	msg.addr = state->config.i2c_addr;  in si2165_write()
130 	ret = i2c_transfer(state->i2c, &msg, 1);  in si2165_write()
133 		dev_err(&state->i2c->dev, "%s: ret == %d\n", __func__, ret);  in si2165_write()
143 static int si2165_read(struct si2165_state *state,  in si2165_read()  argument
149 		{ .addr = state->config.i2c_addr,  in si2165_read()
151 		{ .addr = state->config.i2c_addr,  in si2165_read()
155 	ret = i2c_transfer(state->i2c, msg, 2);  in si2165_read()
158 		dev_err(&state->i2c->dev, "%s: error (addr %02x reg %04x error (ret == %i)\n",  in si2165_read()
159 			__func__, state->config.i2c_addr, reg, ret);  in si2165_read()
172 static int si2165_readreg8(struct si2165_state *state,  in si2165_readreg8()  argument
177 	ret = si2165_read(state, reg, val, 1);  in si2165_readreg8()
182 static int si2165_readreg16(struct si2165_state *state,  in si2165_readreg16()  argument
187 	int ret = si2165_read(state, reg, buf, 2);  in si2165_readreg16()
193 static int si2165_writereg8(struct si2165_state *state, const u16 reg, u8 val)  in si2165_writereg8()  argument
195 	return si2165_write(state, reg, &val, 1);  in si2165_writereg8()
198 static int si2165_writereg16(struct si2165_state *state, const u16 reg, u16 val)  in si2165_writereg16()  argument
202 	return si2165_write(state, reg, buf, 2);  in si2165_writereg16()
205 static int si2165_writereg24(struct si2165_state *state, const u16 reg, u32 val)  in si2165_writereg24()  argument
209 	return si2165_write(state, reg, buf, 3);  in si2165_writereg24()
212 static int si2165_writereg32(struct si2165_state *state, const u16 reg, u32 val)  in si2165_writereg32()  argument
220 	return si2165_write(state, reg, buf, 4);  in si2165_writereg32()
223 static int si2165_writereg_mask8(struct si2165_state *state, const u16 reg,  in si2165_writereg_mask8()  argument
230 		ret = si2165_readreg8(state, reg, &tmp);  in si2165_writereg_mask8()
239 	ret = si2165_writereg8(state, reg, val);  in si2165_writereg_mask8()
251 static int si2165_init_pll(struct si2165_state *state)  in si2165_init_pll()  argument
253 	u32 ref_freq_Hz = state->config.ref_freq_Hz;  in si2165_init_pll()
288 	state->fvco_hz = ref_freq_Hz / divr  in si2165_init_pll()
290 	state->adc_clk = state->fvco_hz / (divm * 4u);  in si2165_init_pll()
291 	state->sys_clk = state->fvco_hz / (divl * 2u);  in si2165_init_pll()
298 	return si2165_write(state, 0x00a0, buf, 4);  in si2165_init_pll()
301 static int si2165_adjust_pll_divl(struct si2165_state *state, u8 divl)  in si2165_adjust_pll_divl()  argument
303 	state->sys_clk = state->fvco_hz / (divl * 2u);  in si2165_adjust_pll_divl()
304 	return si2165_writereg8(state, 0x00a0, divl); /* pll_divl */  in si2165_adjust_pll_divl()
307 static u32 si2165_get_fe_clk(struct si2165_state *state)  in si2165_get_fe_clk()  argument
310 	return state->adc_clk;  in si2165_get_fe_clk()
313 static int si2165_wait_init_done(struct si2165_state *state)  in si2165_wait_init_done()  argument
320 		si2165_readreg8(state, 0x0054, &val);  in si2165_wait_init_done()
325 	dev_err(&state->i2c->dev, "%s: init_done was not set\n",  in si2165_wait_init_done()
330 static int si2165_upload_firmware_block(struct si2165_state *state,  in si2165_upload_firmware_block()  argument
352 			dev_warn(&state->i2c->dev,  in si2165_upload_firmware_block()
359 			dev_warn(&state->i2c->dev,  in si2165_upload_firmware_block()
367 		ret = si2165_write(state, 0x0364, buf_ctrl, 4);  in si2165_upload_firmware_block()
370 		ret = si2165_write(state, 0x0368, data+offset+4, 4);  in si2165_upload_firmware_block()
377 			ret = si2165_write(state, 0x36c, data+offset, 4);  in si2165_upload_firmware_block()
400 static int si2165_upload_firmware(struct si2165_state *state)  in si2165_upload_firmware()  argument
416 	switch (state->chip_revcode) {  in si2165_upload_firmware()
421 		dev_info(&state->i2c->dev, "%s: no firmware file for revision=%d\n",  in si2165_upload_firmware()
422 			KBUILD_MODNAME, state->chip_revcode);  in si2165_upload_firmware()
427 	ret = request_firmware(&fw, fw_file, state->i2c->dev.parent);  in si2165_upload_firmware()
429 		dev_warn(&state->i2c->dev, "%s: firmware file '%s' not found\n",  in si2165_upload_firmware()
437 	dev_info(&state->i2c->dev, "%s: downloading firmware from file '%s' size=%d\n",  in si2165_upload_firmware()
441 		dev_warn(&state->i2c->dev, "%s: firmware size is not multiple of 4\n",  in si2165_upload_firmware()
449 		dev_warn(&state->i2c->dev, "%s: firmware header is missing\n",  in si2165_upload_firmware()
456 		dev_warn(&state->i2c->dev, "%s: firmware file version is wrong\n",  in si2165_upload_firmware()
468 	ret = si2165_writereg8(state, 0x0341, 0x00);  in si2165_upload_firmware()
472 	ret = si2165_writereg8(state, 0x00c0, 0x00);  in si2165_upload_firmware()
476 	ret = si2165_readreg8(state, 0x0341, val);  in si2165_upload_firmware()
481 	ret = si2165_readreg8(state, 0x035c, val);  in si2165_upload_firmware()
484 	ret = si2165_readreg8(state, 0x035c, val);  in si2165_upload_firmware()
487 	ret = si2165_writereg8(state, 0x035c, 0x02);  in si2165_upload_firmware()
494 …dev_info(&state->i2c->dev, "%s: si2165_upload_firmware extracted patch_version=0x%02x, block_count…  in si2165_upload_firmware()
497 	ret = si2165_upload_firmware_block(state, data, len, &offset, 1);  in si2165_upload_firmware()
501 	ret = si2165_writereg8(state, 0x0344, patch_version);  in si2165_upload_firmware()
506 	ret = si2165_writereg8(state, 0x0379, 0x01);  in si2165_upload_firmware()
510 	ret = si2165_upload_firmware_block(state, data, len,  in si2165_upload_firmware()
513 		dev_err(&state->i2c->dev,  in si2165_upload_firmware()
520 	ret = si2165_readreg16(state, 0x037a, &val16);  in si2165_upload_firmware()
525 		dev_err(&state->i2c->dev,  in si2165_upload_firmware()
532 	ret = si2165_upload_firmware_block(state, data, len, &offset, 5);  in si2165_upload_firmware()
537 		dev_err(&state->i2c->dev,  in si2165_upload_firmware()
545 	ret = si2165_writereg_mask8(state, 0x0341, 0x02, 0x02);  in si2165_upload_firmware()
550 	ret = si2165_writereg_mask8(state, 0x035c, 0x01, 0x01);  in si2165_upload_firmware()
554 	dev_info(&state->i2c->dev, "%s: fw load finished\n", KBUILD_MODNAME);  in si2165_upload_firmware()
557 	state->firmware_loaded = true;  in si2165_upload_firmware()
570 	struct si2165_state *state = fe->demodulator_priv;  in si2165_init()  local
577 	ret = si2165_writereg8(state, 0x0000, state->config.chip_mode);  in si2165_init()
581 	ret = si2165_writereg8(state, 0x0104, 0x01);  in si2165_init()
584 	ret = si2165_readreg8(state, 0x0000, &val); /* verify chip_mode */  in si2165_init()
587 	if (val != state->config.chip_mode) {  in si2165_init()
588 		dev_err(&state->i2c->dev, "%s: could not set chip_mode\n",  in si2165_init()
594 	ret = si2165_writereg8(state, 0x018b, 0x00);  in si2165_init()
597 	ret = si2165_writereg8(state, 0x0190, 0x01);  in si2165_init()
600 	ret = si2165_writereg8(state, 0x0170, 0x00);  in si2165_init()
603 	ret = si2165_writereg8(state, 0x0171, 0x07);  in si2165_init()
607 	ret = si2165_writereg8(state, 0x0646, 0x00);  in si2165_init()
610 	ret = si2165_writereg8(state, 0x0641, 0x00);  in si2165_init()
614 	ret = si2165_init_pll(state);  in si2165_init()
619 	ret = si2165_writereg8(state, 0x0050, 0x01);  in si2165_init()
623 	ret = si2165_writereg8(state, 0x0096, 0x01);  in si2165_init()
626 	ret = si2165_wait_init_done(state);  in si2165_init()
631 	ret = si2165_writereg8(state, 0x0050, 0x00);  in si2165_init()
636 	ret = si2165_writereg16(state, 0x0470 , 0x7530);  in si2165_init()
640 	ret = si2165_readreg8(state, 0x0344, &patch_version);  in si2165_init()
644 	ret = si2165_writereg8(state, 0x00cb, 0x00);  in si2165_init()
649 	ret = si2165_writereg32(state, 0x0348, 0xf4000000);  in si2165_init()
653 	ret = si2165_readreg8(state, 0x0341, &val);  in si2165_init()
658 		ret = si2165_upload_firmware(state);  in si2165_init()
664 	ret = si2165_writereg8(state, 0x012a, 0x46);  in si2165_init()
667 	ret = si2165_writereg8(state, 0x012c, 0x00);  in si2165_init()
670 	ret = si2165_writereg8(state, 0x012e, 0x0a);  in si2165_init()
673 	ret = si2165_writereg8(state, 0x012f, 0xff);  in si2165_init()
676 	ret = si2165_writereg8(state, 0x0123, 0x70);  in si2165_init()
688 	struct si2165_state *state = fe->demodulator_priv;  in si2165_sleep()  local
691 	ret = si2165_writereg8(state, 0x0104, 0x00);  in si2165_sleep()
695 	ret = si2165_writereg8(state, 0x0000, SI2165_MODE_OFF);  in si2165_sleep()
705 	struct si2165_state *state = fe->demodulator_priv;  in si2165_read_status()  local
707 	if (!state->has_dvbt)  in si2165_read_status()
711 	ret = si2165_readreg8(state, 0x4e0, &fec_lock);  in si2165_read_status()
726 static int si2165_set_oversamp(struct si2165_state *state, u32 dvb_rate)  in si2165_set_oversamp()  argument
731 	oversamp = si2165_get_fe_clk(state);  in si2165_set_oversamp()
737 	return si2165_writereg32(state, 0x00e4, reg_value);  in si2165_set_oversamp()
740 static int si2165_set_if_freq_shift(struct si2165_state *state, u32 IF)  in si2165_set_if_freq_shift()  argument
744 	u32 fe_clk = si2165_get_fe_clk(state);  in si2165_set_if_freq_shift()
752 	if (state->config.inversion)  in si2165_set_if_freq_shift()
758 	return si2165_writereg32(state, 0x00e8, reg_value);  in si2165_set_if_freq_shift()
765 	struct si2165_state *state = fe->demodulator_priv;  in si2165_set_parameters()  local
774 		dev_err(&state->i2c->dev,  in si2165_set_parameters()
780 	if (!state->has_dvbt)  in si2165_set_parameters()
792 	ret = si2165_writereg8(state, 0x00ec, 0x01);  in si2165_set_parameters()
795 	ret = si2165_adjust_pll_divl(state, 12);  in si2165_set_parameters()
800 	ret = si2165_set_if_freq_shift(state, IF);  in si2165_set_parameters()
803 	ret = si2165_writereg8(state, 0x08f8, 0x00);  in si2165_set_parameters()
807 	ret = si2165_writereg8(state, 0x04e4, 0x20);  in si2165_set_parameters()
810 	ret = si2165_writereg16(state, 0x04ef, 0x00fe);  in si2165_set_parameters()
813 	ret = si2165_writereg24(state, 0x04f4, 0x555555);  in si2165_set_parameters()
816 	ret = si2165_writereg8(state, 0x04e5, 0x01);  in si2165_set_parameters()
820 	ret = si2165_writereg16(state, 0x0308, bw10k);  in si2165_set_parameters()
823 	ret = si2165_set_oversamp(state, dvb_rate);  in si2165_set_parameters()
827 	ret = si2165_writereg8(state, 0x031c, 0x01);  in si2165_set_parameters()
830 	ret = si2165_writereg8(state, 0x00cb, 0x00);  in si2165_set_parameters()
834 	ret = si2165_writereg8(state, 0x016e, 0x41);  in si2165_set_parameters()
837 	ret = si2165_writereg8(state, 0x016c, 0x0e);  in si2165_set_parameters()
840 	ret = si2165_writereg8(state, 0x016d, 0x10);  in si2165_set_parameters()
844 	ret = si2165_writereg8(state, 0x015b, 0x03);  in si2165_set_parameters()
847 	ret = si2165_writereg8(state, 0x0150, 0x78);  in si2165_set_parameters()
851 	ret = si2165_writereg8(state, 0x01a0, 0x78);  in si2165_set_parameters()
854 	ret = si2165_writereg8(state, 0x01c8, 0x68);  in si2165_set_parameters()
858 	ret = si2165_writereg16(state, 0x030c, 0x0064);  in si2165_set_parameters()
862 	ret = si2165_readreg8(state, 0x0387, val);  in si2165_set_parameters()
865 	ret = si2165_writereg8(state, 0x0387, 0x00);  in si2165_set_parameters()
869 	ret = si2165_writereg32(state, 0x0348, 0xf4000000);  in si2165_set_parameters()
878 	ret = si2165_set_if_freq_shift(state, IF);  in si2165_set_parameters()
883 	ret = si2165_readreg8(state, 0x0341, val);  in si2165_set_parameters()
886 	ret = si2165_writereg8(state, 0x0341, 0x00);  in si2165_set_parameters()
890 	ret = si2165_writereg8(state, 0x00c0, 0x00);  in si2165_set_parameters()
894 	ret = si2165_writereg32(state, 0x0384, 0x00000000);  in si2165_set_parameters()
898 	ret = si2165_writereg8(state, 0x02e0, 0x01);  in si2165_set_parameters()
902 	ret = si2165_readreg8(state, 0x0341, val);  in si2165_set_parameters()
911 	struct si2165_state *state = fe->demodulator_priv;  in si2165_release()  local
914 	kfree(state);  in si2165_release()
955 	struct si2165_state *state = NULL;  in si2165_attach()  local
966 	state = kzalloc(sizeof(struct si2165_state), GFP_KERNEL);  in si2165_attach()
967 	if (state == NULL)  in si2165_attach()
971 	state->i2c = i2c;  in si2165_attach()
972 	state->config = *config;  in si2165_attach()
974 	if (state->config.ref_freq_Hz < 4000000  in si2165_attach()
975 	    || state->config.ref_freq_Hz > 27000000) {  in si2165_attach()
976 		dev_err(&state->i2c->dev, "%s: ref_freq of %d Hz not supported by this driver\n",  in si2165_attach()
977 			 KBUILD_MODNAME, state->config.ref_freq_Hz);  in si2165_attach()
982 	memcpy(&state->frontend.ops, &si2165_ops,  in si2165_attach()
984 	state->frontend.demodulator_priv = state;  in si2165_attach()
987 	io_ret = si2165_writereg8(state, 0x0000, state->config.chip_mode);  in si2165_attach()
991 	io_ret = si2165_readreg8(state, 0x0000, &val);  in si2165_attach()
994 	if (val != state->config.chip_mode)  in si2165_attach()
997 	io_ret = si2165_readreg8(state, 0x0023, &state->chip_revcode);  in si2165_attach()
1001 	io_ret = si2165_readreg8(state, 0x0118, &state->chip_type);  in si2165_attach()
1006 	io_ret = si2165_writereg8(state, 0x0000, SI2165_MODE_OFF);  in si2165_attach()
1010 	if (state->chip_revcode < 26)  in si2165_attach()
1011 		rev_char = 'A' + state->chip_revcode;  in si2165_attach()
1015 	switch (state->chip_type) {  in si2165_attach()
1018 		state->has_dvbt = true;  in si2165_attach()
1022 		state->has_dvbt = true;  in si2165_attach()
1023 		state->has_dvbc = true;  in si2165_attach()
1026 		dev_err(&state->i2c->dev, "%s: Unsupported Silicon Labs chip (type %d, rev %d)\n",  in si2165_attach()
1027 			KBUILD_MODNAME, state->chip_type, state->chip_revcode);  in si2165_attach()
1031 	dev_info(&state->i2c->dev,  in si2165_attach()
1033 		KBUILD_MODNAME, chip_name, rev_char, state->chip_type,  in si2165_attach()
1034 		state->chip_revcode);  in si2165_attach()
1036 	strlcat(state->frontend.ops.info.name, chip_name,  in si2165_attach()
1037 			sizeof(state->frontend.ops.info.name));  in si2165_attach()
1040 	if (state->has_dvbt) {  in si2165_attach()
1041 		state->frontend.ops.delsys[n++] = SYS_DVBT;  in si2165_attach()
1042 		strlcat(state->frontend.ops.info.name, " DVB-T",  in si2165_attach()
1043 			sizeof(state->frontend.ops.info.name));  in si2165_attach()
1045 	if (state->has_dvbc)  in si2165_attach()
1046 		dev_warn(&state->i2c->dev, "%s: DVB-C is not yet supported.\n",  in si2165_attach()
1049 	return &state->frontend;  in si2165_attach()
1052 	kfree(state);  in si2165_attach()