[media] RTL2832 DVB-T demodulator driver

Changelog for ver. 0.5:
- fixed code style and naming errors

Changelog for ver. 0.4:
- removed statistics as their calculation was wrong
- fixed bug in Makefile
- indentation and code style improvements
Signed-off-by: Thomas Mair <thomas.mair86@googlemail.com>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/dvb/frontends/Kconfig

@@ -432,6 +432,13 @@ config DVB_RTL2830
 	help
 	  Say Y when you want to support this frontend.
 
+config DVB_RTL2832
+	tristate "Realtek RTL2832 DVB-T"
+	depends on DVB_CORE && I2C
+	default m if DVB_FE_CUSTOMISE
+	help
+	  Say Y when you want to support this frontend.
+
 comment "DVB-C (cable) frontends"
 	depends on DVB_CORE
 

drivers/media/dvb/frontends/Makefile

@@ -99,6 +99,7 @@ obj-$(CONFIG_DVB_IT913X_FE) += it913x-fe.o
 obj-$(CONFIG_DVB_A8293) += a8293.o
 obj-$(CONFIG_DVB_TDA10071) += tda10071.o
 obj-$(CONFIG_DVB_RTL2830) += rtl2830.o
+obj-$(CONFIG_DVB_RTL2832) += rtl2832.o
 obj-$(CONFIG_DVB_M88RS2000) += m88rs2000.o
 obj-$(CONFIG_DVB_AF9033) += af9033.o
 

drivers/media/dvb/frontends/rtl2832.h

+/*
+ * Realtek RTL2832 DVB-T demodulator driver
+ *
+ * Copyright (C) 2012 Thomas Mair <thomas.mair86@gmail.com>
+ *
+ *	This program is free software; you can redistribute it and/or modify
+ *	it under the terms of the GNU General Public License as published by
+ *	the Free Software Foundation; either version 2 of the License, or
+ *	(at your option) any later version.
+ *
+ *	This program is distributed in the hope that it will be useful,
+ *	but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *	GNU General Public License for more details.
+ *
+ *	You should have received a copy of the GNU General Public License along
+ *	with this program; if not, write to the Free Software Foundation, Inc.,
+ *	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef RTL2832_H
+#define RTL2832_H
+
+#include <linux/dvb/frontend.h>
+
+struct rtl2832_config {
+	/*
+	 * Demodulator I2C address.
+	 */
+	u8 i2c_addr;
+
+	/*
+	 * Xtal frequency.
+	 * Hz
+	 * 4000000, 16000000, 25000000, 28800000
+	 */
+	u32 xtal;
+
+	/*
+	 * IFs for all used modes.
+	 * Hz
+	 * 4570000, 4571429, 36000000, 36125000, 36166667, 44000000
+	 */
+	u32 if_dvbt;
+
+	/*
+	 */
+	u8 tuner;
+};
+
+
+#if defined(CONFIG_DVB_RTL2832) || \
+	(defined(CONFIG_DVB_RTL2832_MODULE) && defined(MODULE))
+extern struct dvb_frontend *rtl2832_attach(
+	const struct rtl2832_config *cfg,
+	struct i2c_adapter *i2c
+);
+
+extern struct i2c_adapter *rtl2832_get_tuner_i2c_adapter(
+	struct dvb_frontend *fe
+);
+#else
+static inline struct dvb_frontend *rtl2832_attach(
+	const struct rtl2832_config *config,
+	struct i2c_adapter *i2c
+)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+	return NULL;
+}
+#endif
+
+
+#endif /* RTL2832_H */

drivers/media/dvb/frontends/rtl2832_priv.h

+/*
+ * Realtek RTL2832 DVB-T demodulator driver
+ *
+ * Copyright (C) 2012 Thomas Mair <thomas.mair86@gmail.com>
+ *
+ *	This program is free software; you can redistribute it and/or modify
+ *	it under the terms of the GNU General Public License as published by
+ *	the Free Software Foundation; either version 2 of the License, or
+ *	(at your option) any later version.
+ *
+ *	This program is distributed in the hope that it will be useful,
+ *	but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *	GNU General Public License for more details.
+ *
+ *	You should have received a copy of the GNU General Public License along
+ *	with this program; if not, write to the Free Software Foundation, Inc.,
+ *	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef RTL2832_PRIV_H
+#define RTL2832_PRIV_H
+
+#include "dvb_frontend.h"
+#include "rtl2832.h"
+
+#define LOG_PREFIX "rtl2832"
+
+#undef dbg
+#define dbg(f, arg...) \
+do { \
+	if (rtl2832_debug)  \
+		printk(KERN_INFO     LOG_PREFIX": " f "\n" , ## arg); \
+} while (0)
+#undef err
+#define err(f, arg...)  printk(KERN_ERR     LOG_PREFIX": " f "\n" , ## arg)
+#undef info
+#define info(f, arg...) printk(KERN_INFO    LOG_PREFIX": " f "\n" , ## arg)
+#undef warn
+#define warn(f, arg...) printk(KERN_WARNING LOG_PREFIX": " f "\n" , ## arg)
+
+struct rtl2832_priv {
+	struct i2c_adapter *i2c;
+	struct dvb_frontend fe;
+	struct rtl2832_config cfg;
+
+	bool i2c_gate_state;
+	bool sleeping;
+
+	u8 tuner;
+	u8 page; /* active register page */
+};
+
+struct rtl2832_reg_entry {
+	u8 page;
+	u8 start_address;
+	u8 msb;
+	u8 lsb;
+};
+
+struct rtl2832_reg_value {
+	int reg;
+	u32 value;
+};
+
+
+/* Demod register bit names */
+enum DVBT_REG_BIT_NAME {
+	DVBT_SOFT_RST,
+	DVBT_IIC_REPEAT,
+	DVBT_TR_WAIT_MIN_8K,
+	DVBT_RSD_BER_FAIL_VAL,
+	DVBT_EN_BK_TRK,
+	DVBT_REG_PI,
+	DVBT_REG_PFREQ_1_0,
+	DVBT_PD_DA8,
+	DVBT_LOCK_TH,
+	DVBT_BER_PASS_SCAL,
+	DVBT_CE_FFSM_BYPASS,
+	DVBT_ALPHAIIR_N,
+	DVBT_ALPHAIIR_DIF,
+	DVBT_EN_TRK_SPAN,
+	DVBT_LOCK_TH_LEN,
+	DVBT_CCI_THRE,
+	DVBT_CCI_MON_SCAL,
+	DVBT_CCI_M0,
+	DVBT_CCI_M1,
+	DVBT_CCI_M2,
+	DVBT_CCI_M3,
+	DVBT_SPEC_INIT_0,
+	DVBT_SPEC_INIT_1,
+	DVBT_SPEC_INIT_2,
+	DVBT_AD_EN_REG,
+	DVBT_AD_EN_REG1,
+	DVBT_EN_BBIN,
+	DVBT_MGD_THD0,
+	DVBT_MGD_THD1,
+	DVBT_MGD_THD2,
+	DVBT_MGD_THD3,
+	DVBT_MGD_THD4,
+	DVBT_MGD_THD5,
+	DVBT_MGD_THD6,
+	DVBT_MGD_THD7,
+	DVBT_EN_CACQ_NOTCH,
+	DVBT_AD_AV_REF,
+	DVBT_PIP_ON,
+	DVBT_SCALE1_B92,
+	DVBT_SCALE1_B93,
+	DVBT_SCALE1_BA7,
+	DVBT_SCALE1_BA9,
+	DVBT_SCALE1_BAA,
+	DVBT_SCALE1_BAB,
+	DVBT_SCALE1_BAC,
+	DVBT_SCALE1_BB0,
+	DVBT_SCALE1_BB1,
+	DVBT_KB_P1,
+	DVBT_KB_P2,
+	DVBT_KB_P3,
+	DVBT_OPT_ADC_IQ,
+	DVBT_AD_AVI,
+	DVBT_AD_AVQ,
+	DVBT_K1_CR_STEP12,
+	DVBT_TRK_KS_P2,
+	DVBT_TRK_KS_I2,
+	DVBT_TR_THD_SET2,
+	DVBT_TRK_KC_P2,
+	DVBT_TRK_KC_I2,
+	DVBT_CR_THD_SET2,
+	DVBT_PSET_IFFREQ,
+	DVBT_SPEC_INV,
+	DVBT_BW_INDEX,
+	DVBT_RSAMP_RATIO,
+	DVBT_CFREQ_OFF_RATIO,
+	DVBT_FSM_STAGE,
+	DVBT_RX_CONSTEL,
+	DVBT_RX_HIER,
+	DVBT_RX_C_RATE_LP,
+	DVBT_RX_C_RATE_HP,
+	DVBT_GI_IDX,
+	DVBT_FFT_MODE_IDX,
+	DVBT_RSD_BER_EST,
+	DVBT_CE_EST_EVM,
+	DVBT_RF_AGC_VAL,
+	DVBT_IF_AGC_VAL,
+	DVBT_DAGC_VAL,
+	DVBT_SFREQ_OFF,
+	DVBT_CFREQ_OFF,
+	DVBT_POLAR_RF_AGC,
+	DVBT_POLAR_IF_AGC,
+	DVBT_AAGC_HOLD,
+	DVBT_EN_RF_AGC,
+	DVBT_EN_IF_AGC,
+	DVBT_IF_AGC_MIN,
+	DVBT_IF_AGC_MAX,
+	DVBT_RF_AGC_MIN,
+	DVBT_RF_AGC_MAX,
+	DVBT_IF_AGC_MAN,
+	DVBT_IF_AGC_MAN_VAL,
+	DVBT_RF_AGC_MAN,
+	DVBT_RF_AGC_MAN_VAL,
+	DVBT_DAGC_TRG_VAL,
+	DVBT_AGC_TARG_VAL,
+	DVBT_LOOP_GAIN_3_0,
+	DVBT_LOOP_GAIN_4,
+	DVBT_VTOP,
+	DVBT_KRF,
+	DVBT_AGC_TARG_VAL_0,
+	DVBT_AGC_TARG_VAL_8_1,
+	DVBT_AAGC_LOOP_GAIN,
+	DVBT_LOOP_GAIN2_3_0,
+	DVBT_LOOP_GAIN2_4,
+	DVBT_LOOP_GAIN3,
+	DVBT_VTOP1,
+	DVBT_VTOP2,
+	DVBT_VTOP3,
+	DVBT_KRF1,
+	DVBT_KRF2,
+	DVBT_KRF3,
+	DVBT_KRF4,
+	DVBT_EN_GI_PGA,
+	DVBT_THD_LOCK_UP,
+	DVBT_THD_LOCK_DW,
+	DVBT_THD_UP1,
+	DVBT_THD_DW1,
+	DVBT_INTER_CNT_LEN,
+	DVBT_GI_PGA_STATE,
+	DVBT_EN_AGC_PGA,
+	DVBT_CKOUTPAR,
+	DVBT_CKOUT_PWR,
+	DVBT_SYNC_DUR,
+	DVBT_ERR_DUR,
+	DVBT_SYNC_LVL,
+	DVBT_ERR_LVL,
+	DVBT_VAL_LVL,
+	DVBT_SERIAL,
+	DVBT_SER_LSB,
+	DVBT_CDIV_PH0,
+	DVBT_CDIV_PH1,
+	DVBT_MPEG_IO_OPT_2_2,
+	DVBT_MPEG_IO_OPT_1_0,
+	DVBT_CKOUTPAR_PIP,
+	DVBT_CKOUT_PWR_PIP,
+	DVBT_SYNC_LVL_PIP,
+	DVBT_ERR_LVL_PIP,
+	DVBT_VAL_LVL_PIP,
+	DVBT_CKOUTPAR_PID,
+	DVBT_CKOUT_PWR_PID,
+	DVBT_SYNC_LVL_PID,
+	DVBT_ERR_LVL_PID,
+	DVBT_VAL_LVL_PID,
+	DVBT_SM_PASS,
+	DVBT_UPDATE_REG_2,
+	DVBT_BTHD_P3,
+	DVBT_BTHD_D3,
+	DVBT_FUNC4_REG0,
+	DVBT_FUNC4_REG1,
+	DVBT_FUNC4_REG2,
+	DVBT_FUNC4_REG3,
+	DVBT_FUNC4_REG4,
+	DVBT_FUNC4_REG5,
+	DVBT_FUNC4_REG6,
+	DVBT_FUNC4_REG7,
+	DVBT_FUNC4_REG8,
+	DVBT_FUNC4_REG9,
+	DVBT_FUNC4_REG10,
+	DVBT_FUNC5_REG0,
+	DVBT_FUNC5_REG1,
+	DVBT_FUNC5_REG2,
+	DVBT_FUNC5_REG3,
+	DVBT_FUNC5_REG4,
+	DVBT_FUNC5_REG5,
+	DVBT_FUNC5_REG6,
+	DVBT_FUNC5_REG7,
+	DVBT_FUNC5_REG8,
+	DVBT_FUNC5_REG9,
+	DVBT_FUNC5_REG10,
+	DVBT_FUNC5_REG11,
+	DVBT_FUNC5_REG12,
+	DVBT_FUNC5_REG13,
+	DVBT_FUNC5_REG14,
+	DVBT_FUNC5_REG15,
+	DVBT_FUNC5_REG16,
+	DVBT_FUNC5_REG17,
+	DVBT_FUNC5_REG18,
+	DVBT_AD7_SETTING,
+	DVBT_RSSI_R,
+	DVBT_ACI_DET_IND,
+	DVBT_REG_MON,
+	DVBT_REG_MONSEL,
+	DVBT_REG_GPE,
+	DVBT_REG_GPO,
+	DVBT_REG_4MSEL,
+	DVBT_TEST_REG_1,
+	DVBT_TEST_REG_2,
+	DVBT_TEST_REG_3,
+	DVBT_TEST_REG_4,
+	DVBT_REG_BIT_NAME_ITEM_TERMINATOR,
+};
+
+#endif /* RTL2832_PRIV_H */