--- /dev/null
+/*
+ * Driver for Xceive XC4000 "QAM/8VSB single chip tuner"
+ *
+ * Copyright (c) 2007 Xceive Corporation
+ * Copyright (c) 2007 Steven Toth <stoth@linuxtv.org>
+ * Copyright (c) 2009 Devin Heitmueller <dheitmueller@kernellabs.com>
+ * Copyright (c) 2009 Davide Ferri <d.ferri@zero11.it>
+ * Copyright (c) 2010 Istvan Varga <istvan_v@mailbox.hu>
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/videodev2.h>
+#include <linux/delay.h>
+#include <linux/dvb/frontend.h>
+#include <linux/i2c.h>
+#include <linux/mutex.h>
+#include <asm/unaligned.h>
+
+#include "dvb_frontend.h"
+
+#include "xc4000.h"
+#include "tuner-i2c.h"
+#include "tuner-xc2028-types.h"
+
+static int debug;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "Debugging level (0 to 2, default: 0 (off)).");
+
+static int no_poweroff;
+module_param(no_poweroff, int, 0644);
+MODULE_PARM_DESC(no_poweroff, "Power management (1: disabled, 2: enabled, "
+ "0 (default): use device-specific default mode).");
+
+static int audio_std;
+module_param(audio_std, int, 0644);
+MODULE_PARM_DESC(audio_std, "Audio standard. XC4000 audio decoder explicitly "
+ "needs to know what audio standard is needed for some video standards "
+ "with audio A2 or NICAM. The valid settings are a sum of:\n"
+ " 1: use NICAM/B or A2/B instead of NICAM/A or A2/A\n"
+ " 2: use A2 instead of NICAM or BTSC\n"
+ " 4: use SECAM/K3 instead of K1\n"
+ " 8: use PAL-D/K audio for SECAM-D/K\n"
+ "16: use FM radio input 1 instead of input 2\n"
+ "32: use mono audio (the lower three bits are ignored)");
+
+static char firmware_name[30];
+module_param_string(firmware_name, firmware_name, sizeof(firmware_name), 0);
+MODULE_PARM_DESC(firmware_name, "Firmware file name. Allows overriding the "
+ "default firmware name.");
+
+static DEFINE_MUTEX(xc4000_list_mutex);
+static LIST_HEAD(hybrid_tuner_instance_list);
+
+#define dprintk(level, fmt, arg...) if (debug >= level) \
+ printk(KERN_INFO "%s: " fmt, "xc4000", ## arg)
+
+/* struct for storing firmware table */
+struct firmware_description {
+ unsigned int type;
+ v4l2_std_id id;
+ __u16 int_freq;
+ unsigned char *ptr;
+ unsigned int size;
+};
+
+struct firmware_properties {
+ unsigned int type;
+ v4l2_std_id id;
+ v4l2_std_id std_req;
+ __u16 int_freq;
+ unsigned int scode_table;
+ int scode_nr;
+};
+
+struct xc4000_priv {
+ struct tuner_i2c_props i2c_props;
+ struct list_head hybrid_tuner_instance_list;
+ struct firmware_description *firm;
+ int firm_size;
+ u32 if_khz;
+ u32 freq_hz, freq_offset;
+ u32 bandwidth;
+ u8 video_standard;
+ u8 rf_mode;
+ u8 default_pm;
+ u8 dvb_amplitude;
+ u8 set_smoothedcvbs;
+ u8 ignore_i2c_write_errors;
+ __u16 firm_version;
+ struct firmware_properties cur_fw;
+ __u16 hwmodel;
+ __u16 hwvers;
+ struct mutex lock;
+};
+
+#define XC4000_AUDIO_STD_B 1
+#define XC4000_AUDIO_STD_A2 2
+#define XC4000_AUDIO_STD_K3 4
+#define XC4000_AUDIO_STD_L 8
+#define XC4000_AUDIO_STD_INPUT1 16
+#define XC4000_AUDIO_STD_MONO 32
+
+#define XC4000_DEFAULT_FIRMWARE "dvb-fe-xc4000-1.4.fw"
+#define XC4000_DEFAULT_FIRMWARE_NEW "dvb-fe-xc4000-1.4.1.fw"
+
+/* Misc Defines */
+#define MAX_TV_STANDARD 24
+#define XC_MAX_I2C_WRITE_LENGTH 64
+#define XC_POWERED_DOWN 0x80000000U
+
+/* Signal Types */
+#define XC_RF_MODE_AIR 0
+#define XC_RF_MODE_CABLE 1
+
+/* Product id */
+#define XC_PRODUCT_ID_FW_NOT_LOADED 0x2000
+#define XC_PRODUCT_ID_XC4000 0x0FA0
+#define XC_PRODUCT_ID_XC4100 0x1004
+
+/* Registers (Write-only) */
+#define XREG_INIT 0x00
+#define XREG_VIDEO_MODE 0x01
+#define XREG_AUDIO_MODE 0x02
+#define XREG_RF_FREQ 0x03
+#define XREG_D_CODE 0x04
+#define XREG_DIRECTSITTING_MODE 0x05
+#define XREG_SEEK_MODE 0x06
+#define XREG_POWER_DOWN 0x08
+#define XREG_SIGNALSOURCE 0x0A
+#define XREG_SMOOTHEDCVBS 0x0E
+#define XREG_AMPLITUDE 0x10
+
+/* Registers (Read-only) */
+#define XREG_ADC_ENV 0x00
+#define XREG_QUALITY 0x01
+#define XREG_FRAME_LINES 0x02
+#define XREG_HSYNC_FREQ 0x03
+#define XREG_LOCK 0x04
+#define XREG_FREQ_ERROR 0x05
+#define XREG_SNR 0x06
+#define XREG_VERSION 0x07
+#define XREG_PRODUCT_ID 0x08
+#define XREG_SIGNAL_LEVEL 0x0A
+#define XREG_NOISE_LEVEL 0x0B
+
+/*
+ Basic firmware description. This will remain with
+ the driver for documentation purposes.
+
+ This represents an I2C firmware file encoded as a
+ string of unsigned char. Format is as follows:
+
+ char[0 ]=len0_MSB -> len = len_MSB * 256 + len_LSB
+ char[1 ]=len0_LSB -> length of first write transaction
+ char[2 ]=data0 -> first byte to be sent
+ char[3 ]=data1
+ char[4 ]=data2
+ char[ ]=...
+ char[M ]=dataN -> last byte to be sent
+ char[M+1]=len1_MSB -> len = len_MSB * 256 + len_LSB
+ char[M+2]=len1_LSB -> length of second write transaction
+ char[M+3]=data0
+ char[M+4]=data1
+ ...
+ etc.
+
+ The [len] value should be interpreted as follows:
+
+ len= len_MSB _ len_LSB
+ len=1111_1111_1111_1111 : End of I2C_SEQUENCE
+ len=0000_0000_0000_0000 : Reset command: Do hardware reset
+ len=0NNN_NNNN_NNNN_NNNN : Normal transaction: number of bytes = {1:32767)
+ len=1WWW_WWWW_WWWW_WWWW : Wait command: wait for {1:32767} ms
+
+ For the RESET and WAIT commands, the two following bytes will contain
+ immediately the length of the following transaction.
+*/
+
+struct XC_TV_STANDARD {
+ const char *Name;
+ u16 audio_mode;
+ u16 video_mode;
+ u16 int_freq;
+};
+
+/* Tuner standards */
+#define XC4000_MN_NTSC_PAL_BTSC 0
+#define XC4000_MN_NTSC_PAL_A2 1
+#define XC4000_MN_NTSC_PAL_EIAJ 2
+#define XC4000_MN_NTSC_PAL_Mono 3
+#define XC4000_BG_PAL_A2 4
+#define XC4000_BG_PAL_NICAM 5
+#define XC4000_BG_PAL_MONO 6
+#define XC4000_I_PAL_NICAM 7
+#define XC4000_I_PAL_NICAM_MONO 8
+#define XC4000_DK_PAL_A2 9
+#define XC4000_DK_PAL_NICAM 10
+#define XC4000_DK_PAL_MONO 11
+#define XC4000_DK_SECAM_A2DK1 12
+#define XC4000_DK_SECAM_A2LDK3 13
+#define XC4000_DK_SECAM_A2MONO 14
+#define XC4000_DK_SECAM_NICAM 15
+#define XC4000_L_SECAM_NICAM 16
+#define XC4000_LC_SECAM_NICAM 17
+#define XC4000_DTV6 18
+#define XC4000_DTV8 19
+#define XC4000_DTV7_8 20
+#define XC4000_DTV7 21
+#define XC4000_FM_Radio_INPUT2 22
+#define XC4000_FM_Radio_INPUT1 23
+
+static struct XC_TV_STANDARD xc4000_standard[MAX_TV_STANDARD] = {
+ {"M/N-NTSC/PAL-BTSC", 0x0000, 0x80A0, 4500},
+ {"M/N-NTSC/PAL-A2", 0x0000, 0x80A0, 4600},
+ {"M/N-NTSC/PAL-EIAJ", 0x0040, 0x80A0, 4500},
+ {"M/N-NTSC/PAL-Mono", 0x0078, 0x80A0, 4500},
+ {"B/G-PAL-A2", 0x0000, 0x8159, 5640},
+ {"B/G-PAL-NICAM", 0x0004, 0x8159, 5740},
+ {"B/G-PAL-MONO", 0x0078, 0x8159, 5500},
+ {"I-PAL-NICAM", 0x0080, 0x8049, 6240},
+ {"I-PAL-NICAM-MONO", 0x0078, 0x8049, 6000},
+ {"D/K-PAL-A2", 0x0000, 0x8049, 6380},
+ {"D/K-PAL-NICAM", 0x0080, 0x8049, 6200},
+ {"D/K-PAL-MONO", 0x0078, 0x8049, 6500},
+ {"D/K-SECAM-A2 DK1", 0x0000, 0x8049, 6340},
+ {"D/K-SECAM-A2 L/DK3", 0x0000, 0x8049, 6000},
+ {"D/K-SECAM-A2 MONO", 0x0078, 0x8049, 6500},
+ {"D/K-SECAM-NICAM", 0x0080, 0x8049, 6200},
+ {"L-SECAM-NICAM", 0x8080, 0x0009, 6200},
+ {"L'-SECAM-NICAM", 0x8080, 0x4009, 6200},
+ {"DTV6", 0x00C0, 0x8002, 0},
+ {"DTV8", 0x00C0, 0x800B, 0},
+ {"DTV7/8", 0x00C0, 0x801B, 0},
+ {"DTV7", 0x00C0, 0x8007, 0},
+ {"FM Radio-INPUT2", 0x0008, 0x9800, 10700},
+ {"FM Radio-INPUT1", 0x0008, 0x9000, 10700}
+};
+
+static int xc4000_readreg(struct xc4000_priv *priv, u16 reg, u16 *val);
+static int xc4000_tuner_reset(struct dvb_frontend *fe);
+static void xc_debug_dump(struct xc4000_priv *priv);
+
+static int xc_send_i2c_data(struct xc4000_priv *priv, u8 *buf, int len)
+{
+ struct i2c_msg msg = { .addr = priv->i2c_props.addr,
+ .flags = 0, .buf = buf, .len = len };
+ if (i2c_transfer(priv->i2c_props.adap, &msg, 1) != 1) {
+ if (priv->ignore_i2c_write_errors == 0) {
+ printk(KERN_ERR "xc4000: I2C write failed (len=%i)\n",
+ len);
+ if (len == 4) {
+ printk(KERN_ERR "bytes %*ph\n", 4, buf);
+ }
+ return -EREMOTEIO;
+ }
+ }
+ return 0;
+}
+
+static int xc4000_tuner_reset(struct dvb_frontend *fe)
+{
+ struct xc4000_priv *priv = fe->tuner_priv;
+ int ret;
+
+ dprintk(1, "%s()\n", __func__);
+
+ if (fe->callback) {
+ ret = fe->callback(((fe->dvb) && (fe->dvb->priv)) ?
+ fe->dvb->priv :
+ priv->i2c_props.adap->algo_data,
+ DVB_FRONTEND_COMPONENT_TUNER,
+ XC4000_TUNER_RESET, 0);
+ if (ret) {
+ printk(KERN_ERR "xc4000: reset failed\n");
+ return -EREMOTEIO;
+ }
+ } else {
+ printk(KERN_ERR "xc4000: no tuner reset callback function, "
+ "fatal\n");
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int xc_write_reg(struct xc4000_priv *priv, u16 regAddr, u16 i2cData)
+{
+ u8 buf[4];
+ int result;
+
+ buf[0] = (regAddr >> 8) & 0xFF;
+ buf[1] = regAddr & 0xFF;
+ buf[2] = (i2cData >> 8) & 0xFF;
+ buf[3] = i2cData & 0xFF;
+ result = xc_send_i2c_data(priv, buf, 4);
+
+ return result;
+}
+
+static int xc_load_i2c_sequence(struct dvb_frontend *fe, const u8 *i2c_sequence)
+{
+ struct xc4000_priv *priv = fe->tuner_priv;
+
+ int i, nbytes_to_send, result;
+ unsigned int len, pos, index;
+ u8 buf[XC_MAX_I2C_WRITE_LENGTH];
+
+ index = 0;
+ while ((i2c_sequence[index] != 0xFF) ||
+ (i2c_sequence[index + 1] != 0xFF)) {
+ len = i2c_sequence[index] * 256 + i2c_sequence[index+1];
+ if (len == 0x0000) {
+ /* RESET command */
+ /* NOTE: this is ignored, as the reset callback was */
+ /* already called by check_firmware() */
+ index += 2;
+ } else if (len & 0x8000) {
+ /* WAIT command */
+ msleep(len & 0x7FFF);
+ index += 2;
+ } else {
+ /* Send i2c data whilst ensuring individual transactions
+ * do not exceed XC_MAX_I2C_WRITE_LENGTH bytes.
+ */
+ index += 2;
+ buf[0] = i2c_sequence[index];
+ buf[1] = i2c_sequence[index + 1];
+ pos = 2;
+ while (pos < len) {
+ if ((len - pos) > XC_MAX_I2C_WRITE_LENGTH - 2)
+ nbytes_to_send =
+ XC_MAX_I2C_WRITE_LENGTH;
+ else
+ nbytes_to_send = (len - pos + 2);
+ for (i = 2; i < nbytes_to_send; i++) {
+ buf[i] = i2c_sequence[index + pos +
+ i - 2];
+ }
+ result = xc_send_i2c_data(priv, buf,
+ nbytes_to_send);
+
+ if (result != 0)
+ return result;
+
+ pos += nbytes_to_send - 2;
+ }
+ index += len;
+ }
+ }
+ return 0;
+}
+
+static int xc_set_tv_standard(struct xc4000_priv *priv,
+ u16 video_mode, u16 audio_mode)
+{
+ int ret;
+ dprintk(1, "%s(0x%04x,0x%04x)\n", __func__, video_mode, audio_mode);
+ dprintk(1, "%s() Standard = %s\n",
+ __func__,
+ xc4000_standard[priv->video_standard].Name);
+
+ /* Don't complain when the request fails because of i2c stretching */
+ priv->ignore_i2c_write_errors = 1;
+
+ ret = xc_write_reg(priv, XREG_VIDEO_MODE, video_mode);
+ if (ret == 0)
+ ret = xc_write_reg(priv, XREG_AUDIO_MODE, audio_mode);
+
+ priv->ignore_i2c_write_errors = 0;
+
+ return ret;
+}
+
+static int xc_set_signal_source(struct xc4000_priv *priv, u16 rf_mode)
+{
+ dprintk(1, "%s(%d) Source = %s\n", __func__, rf_mode,
+ rf_mode == XC_RF_MODE_AIR ? "ANTENNA" : "CABLE");
+
+ if ((rf_mode != XC_RF_MODE_AIR) && (rf_mode != XC_RF_MODE_CABLE)) {
+ rf_mode = XC_RF_MODE_CABLE;
+ printk(KERN_ERR
+ "%s(), Invalid mode, defaulting to CABLE",
+ __func__);
+ }
+ return xc_write_reg(priv, XREG_SIGNALSOURCE, rf_mode);
+}
+
+static const struct dvb_tuner_ops xc4000_tuner_ops;
+
+static int xc_set_rf_frequency(struct xc4000_priv *priv, u32 freq_hz)
+{
+ u16 freq_code;
+
+ dprintk(1, "%s(%u)\n", __func__, freq_hz);
+
+ if ((freq_hz > xc4000_tuner_ops.info.frequency_max) ||
+ (freq_hz < xc4000_tuner_ops.info.frequency_min))
+ return -EINVAL;
+
+ freq_code = (u16)(freq_hz / 15625);
+
+ /* WAS: Starting in firmware version 1.1.44, Xceive recommends using the
+ FINERFREQ for all normal tuning (the doc indicates reg 0x03 should
+ only be used for fast scanning for channel lock) */
+ /* WAS: XREG_FINERFREQ */
+ return xc_write_reg(priv, XREG_RF_FREQ, freq_code);
+}
+
+static int xc_get_adc_envelope(struct xc4000_priv *priv, u16 *adc_envelope)
+{
+ return xc4000_readreg(priv, XREG_ADC_ENV, adc_envelope);
+}
+
+static int xc_get_frequency_error(struct xc4000_priv *priv, u32 *freq_error_hz)
+{
+ int result;
+ u16 regData;
+ u32 tmp;
+
+ result = xc4000_readreg(priv, XREG_FREQ_ERROR, ®Data);
+ if (result != 0)
+ return result;
+
+ tmp = (u32)regData & 0xFFFFU;
+ tmp = (tmp < 0x8000U ? tmp : 0x10000U - tmp);
+ (*freq_error_hz) = tmp * 15625;
+ return result;
+}
+
+static int xc_get_lock_status(struct xc4000_priv *priv, u16 *lock_status)
+{
+ return xc4000_readreg(priv, XREG_LOCK, lock_status);
+}
+
+static int xc_get_version(struct xc4000_priv *priv,
+ u8 *hw_majorversion, u8 *hw_minorversion,
+ u8 *fw_majorversion, u8 *fw_minorversion)
+{
+ u16 data;
+ int result;
+
+ result = xc4000_readreg(priv, XREG_VERSION, &data);
+ if (result != 0)
+ return result;
+
+ (*hw_majorversion) = (data >> 12) & 0x0F;
+ (*hw_minorversion) = (data >> 8) & 0x0F;
+ (*fw_majorversion) = (data >> 4) & 0x0F;
+ (*fw_minorversion) = data & 0x0F;
+
+ return 0;
+}
+
+static int xc_get_hsync_freq(struct xc4000_priv *priv, u32 *hsync_freq_hz)
+{
+ u16 regData;
+ int result;
+
+ result = xc4000_readreg(priv, XREG_HSYNC_FREQ, ®Data);
+ if (result != 0)
+ return result;
+
+ (*hsync_freq_hz) = ((regData & 0x0fff) * 763)/100;
+ return result;
+}
+
+static int xc_get_frame_lines(struct xc4000_priv *priv, u16 *frame_lines)
+{
+ return xc4000_readreg(priv, XREG_FRAME_LINES, frame_lines);
+}
+
+static int xc_get_quality(struct xc4000_priv *priv, u16 *quality)
+{
+ return xc4000_readreg(priv, XREG_QUALITY, quality);
+}
+
+static int xc_get_signal_level(struct xc4000_priv *priv, u16 *signal)
+{
+ return xc4000_readreg(priv, XREG_SIGNAL_LEVEL, signal);
+}
+
+static int xc_get_noise_level(struct xc4000_priv *priv, u16 *noise)
+{
+ return xc4000_readreg(priv, XREG_NOISE_LEVEL, noise);
+}
+
+static u16 xc_wait_for_lock(struct xc4000_priv *priv)
+{
+ u16 lock_state = 0;
+ int watchdog_count = 40;
+
+ while ((lock_state == 0) && (watchdog_count > 0)) {
+ xc_get_lock_status(priv, &lock_state);
+ if (lock_state != 1) {
+ msleep(5);
+ watchdog_count--;
+ }
+ }
+ return lock_state;
+}
+
+static int xc_tune_channel(struct xc4000_priv *priv, u32 freq_hz)
+{
+ int found = 1;
+ int result;
+
+ dprintk(1, "%s(%u)\n", __func__, freq_hz);
+
+ /* Don't complain when the request fails because of i2c stretching */
+ priv->ignore_i2c_write_errors = 1;
+ result = xc_set_rf_frequency(priv, freq_hz);
+ priv->ignore_i2c_write_errors = 0;
+
+ if (result != 0)
+ return 0;
+
+ /* wait for lock only in analog TV mode */
+ if ((priv->cur_fw.type & (FM | DTV6 | DTV7 | DTV78 | DTV8)) == 0) {
+ if (xc_wait_for_lock(priv) != 1)
+ found = 0;
+ }
+
+ /* Wait for stats to stabilize.
+ * Frame Lines needs two frame times after initial lock
+ * before it is valid.
+ */
+ msleep(debug ? 100 : 10);
+
+ if (debug)
+ xc_debug_dump(priv);
+
+ return found;
+}
+
+static int xc4000_readreg(struct xc4000_priv *priv, u16 reg, u16 *val)
+{
+ u8 buf[2] = { reg >> 8, reg & 0xff };
+ u8 bval[2] = { 0, 0 };
+ struct i2c_msg msg[2] = {
+ { .addr = priv->i2c_props.addr,
+ .flags = 0, .buf = &buf[0], .len = 2 },
+ { .addr = priv->i2c_props.addr,
+ .flags = I2C_M_RD, .buf = &bval[0], .len = 2 },
+ };
+
+ if (i2c_transfer(priv->i2c_props.adap, msg, 2) != 2) {
+ printk(KERN_ERR "xc4000: I2C read failed\n");
+ return -EREMOTEIO;
+ }
+
+ *val = (bval[0] << 8) | bval[1];
+ return 0;
+}
+
+#define dump_firm_type(t) dump_firm_type_and_int_freq(t, 0)
+static void dump_firm_type_and_int_freq(unsigned int type, u16 int_freq)
+{
+ if (type & BASE)
+ printk(KERN_CONT "BASE ");
+ if (type & INIT1)
+ printk(KERN_CONT "INIT1 ");
+ if (type & F8MHZ)
+ printk(KERN_CONT "F8MHZ ");
+ if (type & MTS)
+ printk(KERN_CONT "MTS ");
+ if (type & D2620)
+ printk(KERN_CONT "D2620 ");
+ if (type & D2633)
+ printk(KERN_CONT "D2633 ");
+ if (type & DTV6)
+ printk(KERN_CONT "DTV6 ");
+ if (type & QAM)
+ printk(KERN_CONT "QAM ");
+ if (type & DTV7)
+ printk(KERN_CONT "DTV7 ");
+ if (type & DTV78)
+ printk(KERN_CONT "DTV78 ");
+ if (type & DTV8)
+ printk(KERN_CONT "DTV8 ");
+ if (type & FM)
+ printk(KERN_CONT "FM ");
+ if (type & INPUT1)
+ printk(KERN_CONT "INPUT1 ");
+ if (type & LCD)
+ printk(KERN_CONT "LCD ");
+ if (type & NOGD)
+ printk(KERN_CONT "NOGD ");
+ if (type & MONO)
+ printk(KERN_CONT "MONO ");
+ if (type & ATSC)
+ printk(KERN_CONT "ATSC ");
+ if (type & IF)
+ printk(KERN_CONT "IF ");
+ if (type & LG60)
+ printk(KERN_CONT "LG60 ");
+ if (type & ATI638)
+ printk(KERN_CONT "ATI638 ");
+ if (type & OREN538)
+ printk(KERN_CONT "OREN538 ");
+ if (type & OREN36)
+ printk(KERN_CONT "OREN36 ");
+ if (type & TOYOTA388)
+ printk(KERN_CONT "TOYOTA388 ");
+ if (type & TOYOTA794)
+ printk(KERN_CONT "TOYOTA794 ");
+ if (type & DIBCOM52)
+ printk(KERN_CONT "DIBCOM52 ");
+ if (type & ZARLINK456)
+ printk(KERN_CONT "ZARLINK456 ");
+ if (type & CHINA)
+ printk(KERN_CONT "CHINA ");
+ if (type & F6MHZ)
+ printk(KERN_CONT "F6MHZ ");
+ if (type & INPUT2)
+ printk(KERN_CONT "INPUT2 ");
+ if (type & SCODE)
+ printk(KERN_CONT "SCODE ");
+ if (type & HAS_IF)
+ printk(KERN_CONT "HAS_IF_%d ", int_freq);
+}
+
+static int seek_firmware(struct dvb_frontend *fe, unsigned int type,
+ v4l2_std_id *id)
+{
+ struct xc4000_priv *priv = fe->tuner_priv;
+ int i, best_i = -1;
+ unsigned int best_nr_diffs = 255U;
+
+ if (!priv->firm) {
+ printk(KERN_ERR "Error! firmware not loaded\n");
+ return -EINVAL;
+ }
+
+ if (((type & ~SCODE) == 0) && (*id == 0))
+ *id = V4L2_STD_PAL;
+
+ /* Seek for generic video standard match */
+ for (i = 0; i < priv->firm_size; i++) {
+ v4l2_std_id id_diff_mask =
+ (priv->firm[i].id ^ (*id)) & (*id);
+ unsigned int type_diff_mask =
+ (priv->firm[i].type ^ type)
+ & (BASE_TYPES | DTV_TYPES | LCD | NOGD | MONO | SCODE);
+ unsigned int nr_diffs;
+
+ if (type_diff_mask
+ & (BASE | INIT1 | FM | DTV6 | DTV7 | DTV78 | DTV8 | SCODE))
+ continue;
+
+ nr_diffs = hweight64(id_diff_mask) + hweight32(type_diff_mask);
+ if (!nr_diffs) /* Supports all the requested standards */
+ goto found;
+
+ if (nr_diffs < best_nr_diffs) {
+ best_nr_diffs = nr_diffs;
+ best_i = i;
+ }
+ }
+
+ /* FIXME: Would make sense to seek for type "hint" match ? */
+ if (best_i < 0) {
+ i = -ENOENT;
+ goto ret;
+ }
+
+ if (best_nr_diffs > 0U) {
+ printk(KERN_WARNING
+ "Selecting best matching firmware (%u bits differ) for "
+ "type=(%x), id %016llx:\n",
+ best_nr_diffs, type, (unsigned long long)*id);
+ i = best_i;
+ }
+
+found:
+ *id = priv->firm[i].id;
+
+ret:
+ if (debug) {
+ printk(KERN_DEBUG "%s firmware for type=",
+ (i < 0) ? "Can't find" : "Found");
+ dump_firm_type(type);
+ printk(KERN_DEBUG "(%x), id %016llx.\n", type, (unsigned long long)*id);
+ }
+ return i;
+}
+
+static int load_firmware(struct dvb_frontend *fe, unsigned int type,
+ v4l2_std_id *id)
+{
+ struct xc4000_priv *priv = fe->tuner_priv;
+ int pos, rc;
+ unsigned char *p;
+
+ pos = seek_firmware(fe, type, id);
+ if (pos < 0)
+ return pos;
+
+ p = priv->firm[pos].ptr;
+
+ /* Don't complain when the request fails because of i2c stretching */
+ priv->ignore_i2c_write_errors = 1;
+
+ rc = xc_load_i2c_sequence(fe, p);
+
+ priv->ignore_i2c_write_errors = 0;
+
+ return rc;
+}
+
+static int xc4000_fwupload(struct dvb_frontend *fe)
+{
+ struct xc4000_priv *priv = fe->tuner_priv;
+ const struct firmware *fw = NULL;
+ const unsigned char *p, *endp;
+ int rc = 0;
+ int n, n_array;
+ char name[33];
+ const char *fname;
+
+ if (firmware_name[0] != '\0') {
+ fname = firmware_name;
+
+ dprintk(1, "Reading custom firmware %s\n", fname);
+ rc = request_firmware(&fw, fname,
+ priv->i2c_props.adap->dev.parent);
+ } else {
+ fname = XC4000_DEFAULT_FIRMWARE_NEW;
+ dprintk(1, "Trying to read firmware %s\n", fname);
+ rc = request_firmware(&fw, fname,
+ priv->i2c_props.adap->dev.parent);
+ if (rc == -ENOENT) {
+ fname = XC4000_DEFAULT_FIRMWARE;
+ dprintk(1, "Trying to read firmware %s\n", fname);
+ rc = request_firmware(&fw, fname,
+ priv->i2c_props.adap->dev.parent);
+ }
+ }
+
+ if (rc < 0) {
+ if (rc == -ENOENT)
+ printk(KERN_ERR "Error: firmware %s not found.\n", fname);
+ else
+ printk(KERN_ERR "Error %d while requesting firmware %s\n",
+ rc, fname);
+
+ return rc;
+ }
+ dprintk(1, "Loading Firmware: %s\n", fname);
+
+ p = fw->data;
+ endp = p + fw->size;
+
+ if (fw->size < sizeof(name) - 1 + 2 + 2) {
+ printk(KERN_ERR "Error: firmware file %s has invalid size!\n",
+ fname);
+ goto corrupt;
+ }
+
+ memcpy(name, p, sizeof(name) - 1);
+ name[sizeof(name) - 1] = '\0';
+ p += sizeof(name) - 1;
+
+ priv->firm_version = get_unaligned_le16(p);
+ p += 2;
+
+ n_array = get_unaligned_le16(p);
+ p += 2;
+
+ dprintk(1, "Loading %d firmware images from %s, type: %s, ver %d.%d\n",
+ n_array, fname, name,
+ priv->firm_version >> 8, priv->firm_version & 0xff);
+
+ priv->firm = kcalloc(n_array, sizeof(*priv->firm), GFP_KERNEL);
+ if (priv->firm == NULL) {
+ printk(KERN_ERR "Not enough memory to load firmware file.\n");
+ rc = -ENOMEM;
+ goto done;
+ }
+ priv->firm_size = n_array;
+
+ n = -1;
+ while (p < endp) {
+ __u32 type, size;
+ v4l2_std_id id;
+ __u16 int_freq = 0;
+
+ n++;
+ if (n >= n_array) {
+ printk(KERN_ERR "More firmware images in file than "
+ "were expected!\n");
+ goto corrupt;
+ }
+
+ /* Checks if there's enough bytes to read */
+ if (endp - p < sizeof(type) + sizeof(id) + sizeof(size))
+ goto header;
+
+ type = get_unaligned_le32(p);
+ p += sizeof(type);
+
+ id = get_unaligned_le64(p);
+ p += sizeof(id);
+
+ if (type & HAS_IF) {
+ int_freq = get_unaligned_le16(p);
+ p += sizeof(int_freq);
+ if (endp - p < sizeof(size))
+ goto header;
+ }
+
+ size = get_unaligned_le32(p);
+ p += sizeof(size);
+
+ if (!size || size > endp - p) {
+ printk(KERN_ERR "Firmware type (%x), id %llx is corrupted (size=%d, expected %d)\n",
+ type, (unsigned long long)id,
+ (unsigned)(endp - p), size);
+ goto corrupt;
+ }
+
+ priv->firm[n].ptr = kzalloc(size, GFP_KERNEL);
+ if (priv->firm[n].ptr == NULL) {
+ printk(KERN_ERR "Not enough memory to load firmware file.\n");
+ rc = -ENOMEM;
+ goto done;
+ }
+
+ if (debug) {
+ printk(KERN_DEBUG "Reading firmware type ");
+ dump_firm_type_and_int_freq(type, int_freq);
+ printk(KERN_DEBUG "(%x), id %llx, size=%d.\n",
+ type, (unsigned long long)id, size);
+ }
+
+ memcpy(priv->firm[n].ptr, p, size);
+ priv->firm[n].type = type;
+ priv->firm[n].id = id;
+ priv->firm[n].size = size;
+ priv->firm[n].int_freq = int_freq;
+
+ p += size;
+ }
+
+ if (n + 1 != priv->firm_size) {
+ printk(KERN_ERR "Firmware file is incomplete!\n");
+ goto corrupt;
+ }
+
+ goto done;
+
+header:
+ printk(KERN_ERR "Firmware header is incomplete!\n");
+corrupt:
+ rc = -EINVAL;
+ printk(KERN_ERR "Error: firmware file is corrupted!\n");
+
+done:
+ release_firmware(fw);
+ if (rc == 0)
+ dprintk(1, "Firmware files loaded.\n");
+
+ return rc;
+}
+
+static int load_scode(struct dvb_frontend *fe, unsigned int type,
+ v4l2_std_id *id, __u16 int_freq, int scode)
+{
+ struct xc4000_priv *priv = fe->tuner_priv;
+ int pos, rc;
+ unsigned char *p;
+ u8 scode_buf[13];
+ u8 indirect_mode[5];
+
+ dprintk(1, "%s called int_freq=%d\n", __func__, int_freq);
+
+ if (!int_freq) {
+ pos = seek_firmware(fe, type, id);
+ if (pos < 0)
+ return pos;
+ } else {
+ for (pos = 0; pos < priv->firm_size; pos++) {
+ if ((priv->firm[pos].int_freq == int_freq) &&
+ (priv->firm[pos].type & HAS_IF))
+ break;
+ }
+ if (pos == priv->firm_size)
+ return -ENOENT;
+ }
+
+ p = priv->firm[pos].ptr;
+
+ if (priv->firm[pos].size != 12 * 16 || scode >= 16)
+ return -EINVAL;
+ p += 12 * scode;
+
+ if (debug) {
+ tuner_info("Loading SCODE for type=");
+ dump_firm_type_and_int_freq(priv->firm[pos].type,
+ priv->firm[pos].int_freq);
+ printk(KERN_CONT "(%x), id %016llx.\n", priv->firm[pos].type,
+ (unsigned long long)*id);
+ }
+
+ scode_buf[0] = 0x00;
+ memcpy(&scode_buf[1], p, 12);
+
+ /* Enter direct-mode */
+ rc = xc_write_reg(priv, XREG_DIRECTSITTING_MODE, 0);
+ if (rc < 0) {
+ printk(KERN_ERR "failed to put device into direct mode!\n");
+ return -EIO;
+ }
+
+ rc = xc_send_i2c_data(priv, scode_buf, 13);
+ if (rc != 0) {
+ /* Even if the send failed, make sure we set back to indirect
+ mode */
+ printk(KERN_ERR "Failed to set scode %d\n", rc);
+ }
+
+ /* Switch back to indirect-mode */
+ memset(indirect_mode, 0, sizeof(indirect_mode));
+ indirect_mode[4] = 0x88;
+ xc_send_i2c_data(priv, indirect_mode, sizeof(indirect_mode));
+ msleep(10);
+
+ return 0;
+}
+
+static int check_firmware(struct dvb_frontend *fe, unsigned int type,
+ v4l2_std_id std, __u16 int_freq)
+{
+ struct xc4000_priv *priv = fe->tuner_priv;
+ struct firmware_properties new_fw;
+ int rc = 0, is_retry = 0;
+ u16 hwmodel;
+ v4l2_std_id std0;
+ u8 hw_major = 0, hw_minor = 0, fw_major = 0, fw_minor = 0;
+
+ dprintk(1, "%s called\n", __func__);
+
+ if (!priv->firm) {
+ rc = xc4000_fwupload(fe);
+ if (rc < 0)
+ return rc;
+ }
+
+retry:
+ new_fw.type = type;
+ new_fw.id = std;
+ new_fw.std_req = std;
+ new_fw.scode_table = SCODE;
+ new_fw.scode_nr = 0;
+ new_fw.int_freq = int_freq;
+
+ dprintk(1, "checking firmware, user requested type=");
+ if (debug) {
+ dump_firm_type(new_fw.type);
+ printk(KERN_CONT "(%x), id %016llx, ", new_fw.type,
+ (unsigned long long)new_fw.std_req);
+ if (!int_freq)
+ printk(KERN_CONT "scode_tbl ");
+ else
+ printk(KERN_CONT "int_freq %d, ", new_fw.int_freq);
+ printk(KERN_CONT "scode_nr %d\n", new_fw.scode_nr);
+ }
+
+ /* No need to reload base firmware if it matches */
+ if (priv->cur_fw.type & BASE) {
+ dprintk(1, "BASE firmware not changed.\n");
+ goto skip_base;
+ }
+
+ /* Updating BASE - forget about all currently loaded firmware */
+ memset(&priv->cur_fw, 0, sizeof(priv->cur_fw));
+
+ /* Reset is needed before loading firmware */
+ rc = xc4000_tuner_reset(fe);
+ if (rc < 0)
+ goto fail;
+
+ /* BASE firmwares are all std0 */
+ std0 = 0;
+ rc = load_firmware(fe, BASE, &std0);
+ if (rc < 0) {
+ printk(KERN_ERR "Error %d while loading base firmware\n", rc);
+ goto fail;
+ }
+
+ /* Load INIT1, if needed */
+ dprintk(1, "Load init1 firmware, if exists\n");
+
+ rc = load_firmware(fe, BASE | INIT1, &std0);
+ if (rc == -ENOENT)
+ rc = load_firmware(fe, BASE | INIT1, &std0);
+ if (rc < 0 && rc != -ENOENT) {
+ tuner_err("Error %d while loading init1 firmware\n",
+ rc);
+ goto fail;
+ }
+
+skip_base:
+ /*
+ * No need to reload standard specific firmware if base firmware
+ * was not reloaded and requested video standards have not changed.
+ */
+ if (priv->cur_fw.type == (BASE | new_fw.type) &&
+ priv->cur_fw.std_req == std) {
+ dprintk(1, "Std-specific firmware already loaded.\n");
+ goto skip_std_specific;
+ }
+
+ /* Reloading std-specific firmware forces a SCODE update */
+ priv->cur_fw.scode_table = 0;
+
+ /* Load the standard firmware */
+ rc = load_firmware(fe, new_fw.type, &new_fw.id);
+
+ if (rc < 0)
+ goto fail;
+
+skip_std_specific:
+ if (priv->cur_fw.scode_table == new_fw.scode_table &&
+ priv->cur_fw.scode_nr == new_fw.scode_nr) {
+ dprintk(1, "SCODE firmware already loaded.\n");
+ goto check_device;
+ }
+
+ /* Load SCODE firmware, if exists */
+ rc = load_scode(fe, new_fw.type | new_fw.scode_table, &new_fw.id,
+ new_fw.int_freq, new_fw.scode_nr);
+ if (rc != 0)
+ dprintk(1, "load scode failed %d\n", rc);
+
+check_device:
+ rc = xc4000_readreg(priv, XREG_PRODUCT_ID, &hwmodel);
+
+ if (xc_get_version(priv, &hw_major, &hw_minor, &fw_major,
+ &fw_minor) != 0) {
+ printk(KERN_ERR "Unable to read tuner registers.\n");
+ goto fail;
+ }
+
+ dprintk(1, "Device is Xceive %d version %d.%d, "
+ "firmware version %d.%d\n",
+ hwmodel, hw_major, hw_minor, fw_major, fw_minor);
+
+ /* Check firmware version against what we downloaded. */
+ if (priv->firm_version != ((fw_major << 8) | fw_minor)) {
+ printk(KERN_WARNING
+ "Incorrect readback of firmware version %d.%d.\n",
+ fw_major, fw_minor);
+ goto fail;
+ }
+
+ /* Check that the tuner hardware model remains consistent over time. */
+ if (priv->hwmodel == 0 &&
+ (hwmodel == XC_PRODUCT_ID_XC4000 ||
+ hwmodel == XC_PRODUCT_ID_XC4100)) {
+ priv->hwmodel = hwmodel;
+ priv->hwvers = (hw_major << 8) | hw_minor;
+ } else if (priv->hwmodel == 0 || priv->hwmodel != hwmodel ||
+ priv->hwvers != ((hw_major << 8) | hw_minor)) {
+ printk(KERN_WARNING
+ "Read invalid device hardware information - tuner "
+ "hung?\n");
+ goto fail;
+ }
+
+ priv->cur_fw = new_fw;
+
+ /*
+ * By setting BASE in cur_fw.type only after successfully loading all
+ * firmwares, we can:
+ * 1. Identify that BASE firmware with type=0 has been loaded;
+ * 2. Tell whether BASE firmware was just changed the next time through.
+ */
+ priv->cur_fw.type |= BASE;
+
+ return 0;
+
+fail:
+ memset(&priv->cur_fw, 0, sizeof(priv->cur_fw));
+ if (!is_retry) {
+ msleep(50);
+ is_retry = 1;
+ dprintk(1, "Retrying firmware load\n");
+ goto retry;
+ }
+
+ if (rc == -ENOENT)
+ rc = -EINVAL;
+ return rc;
+}
+
+static void xc_debug_dump(struct xc4000_priv *priv)
+{
+ u16 adc_envelope;
+ u32 freq_error_hz = 0;
+ u16 lock_status;
+ u32 hsync_freq_hz = 0;
+ u16 frame_lines;
+ u16 quality;
+ u16 signal = 0;
+ u16 noise = 0;
+ u8 hw_majorversion = 0, hw_minorversion = 0;
+ u8 fw_majorversion = 0, fw_minorversion = 0;
+
+ xc_get_adc_envelope(priv, &adc_envelope);
+ dprintk(1, "*** ADC envelope (0-1023) = %d\n", adc_envelope);
+
+ xc_get_frequency_error(priv, &freq_error_hz);
+ dprintk(1, "*** Frequency error = %d Hz\n", freq_error_hz);
+
+ xc_get_lock_status(priv, &lock_status);
+ dprintk(1, "*** Lock status (0-Wait, 1-Locked, 2-No-signal) = %d\n",
+ lock_status);
+
+ xc_get_version(priv, &hw_majorversion, &hw_minorversion,
+ &fw_majorversion, &fw_minorversion);
+ dprintk(1, "*** HW: V%02x.%02x, FW: V%02x.%02x\n",
+ hw_majorversion, hw_minorversion,
+ fw_majorversion, fw_minorversion);
+
+ if (priv->video_standard < XC4000_DTV6) {
+ xc_get_hsync_freq(priv, &hsync_freq_hz);
+ dprintk(1, "*** Horizontal sync frequency = %d Hz\n",
+ hsync_freq_hz);
+
+ xc_get_frame_lines(priv, &frame_lines);
+ dprintk(1, "*** Frame lines = %d\n", frame_lines);
+ }
+
+ xc_get_quality(priv, &quality);
+ dprintk(1, "*** Quality (0:<8dB, 7:>56dB) = %d\n", quality);
+
+ xc_get_signal_level(priv, &signal);
+ dprintk(1, "*** Signal level = -%ddB (%d)\n", signal >> 8, signal);
+
+ xc_get_noise_level(priv, &noise);
+ dprintk(1, "*** Noise level = %ddB (%d)\n", noise >> 8, noise);
+}
+
+static int xc4000_set_params(struct dvb_frontend *fe)
+{
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+ u32 delsys = c->delivery_system;
+ u32 bw = c->bandwidth_hz;
+ struct xc4000_priv *priv = fe->tuner_priv;
+ unsigned int type;
+ int ret = -EREMOTEIO;
+
+ dprintk(1, "%s() frequency=%d (Hz)\n", __func__, c->frequency);
+
+ mutex_lock(&priv->lock);
+
+ switch (delsys) {
+ case SYS_ATSC:
+ dprintk(1, "%s() VSB modulation\n", __func__);
+ priv->rf_mode = XC_RF_MODE_AIR;
+ priv->freq_offset = 1750000;
+ priv->video_standard = XC4000_DTV6;
+ type = DTV6;
+ break;
+ case SYS_DVBC_ANNEX_B:
+ dprintk(1, "%s() QAM modulation\n", __func__);
+ priv->rf_mode = XC_RF_MODE_CABLE;
+ priv->freq_offset = 1750000;
+ priv->video_standard = XC4000_DTV6;
+ type = DTV6;
+ break;
+ case SYS_DVBT:
+ case SYS_DVBT2:
+ dprintk(1, "%s() OFDM\n", __func__);
+ if (bw == 0) {
+ if (c->frequency < 400000000) {
+ priv->freq_offset = 2250000;
+ } else {
+ priv->freq_offset = 2750000;
+ }
+ priv->video_standard = XC4000_DTV7_8;
+ type = DTV78;
+ } else if (bw <= 6000000) {
+ priv->video_standard = XC4000_DTV6;
+ priv->freq_offset = 1750000;
+ type = DTV6;
+ } else if (bw <= 7000000) {
+ priv->video_standard = XC4000_DTV7;
+ priv->freq_offset = 2250000;
+ type = DTV7;
+ } else {
+ priv->video_standard = XC4000_DTV8;
+ priv->freq_offset = 2750000;
+ type = DTV8;
+ }
+ priv->rf_mode = XC_RF_MODE_AIR;
+ break;
+ default:
+ printk(KERN_ERR "xc4000 delivery system not supported!\n");
+ ret = -EINVAL;
+ goto fail;
+ }
+
+ priv->freq_hz = c->frequency - priv->freq_offset;
+
+ dprintk(1, "%s() frequency=%d (compensated)\n",
+ __func__, priv->freq_hz);
+
+ /* Make sure the correct firmware type is loaded */
+ if (check_firmware(fe, type, 0, priv->if_khz) != 0)
+ goto fail;
+
+ priv->bandwidth = c->bandwidth_hz;
+
+ ret = xc_set_signal_source(priv, priv->rf_mode);
+ if (ret != 0) {
+ printk(KERN_ERR "xc4000: xc_set_signal_source(%d) failed\n",
+ priv->rf_mode);
+ goto fail;
+ } else {
+ u16 video_mode, audio_mode;
+ video_mode = xc4000_standard[priv->video_standard].video_mode;
+ audio_mode = xc4000_standard[priv->video_standard].audio_mode;
+ if (type == DTV6 && priv->firm_version != 0x0102)
+ video_mode |= 0x0001;
+ ret = xc_set_tv_standard(priv, video_mode, audio_mode);
+ if (ret != 0) {
+ printk(KERN_ERR "xc4000: xc_set_tv_standard failed\n");
+ /* DJH - do not return when it fails... */
+ /* goto fail; */
+ }
+ }
+
+ if (xc_write_reg(priv, XREG_D_CODE, 0) == 0)
+ ret = 0;
+ if (priv->dvb_amplitude != 0) {
+ if (xc_write_reg(priv, XREG_AMPLITUDE,
+ (priv->firm_version != 0x0102 ||
+ priv->dvb_amplitude != 134 ?
+ priv->dvb_amplitude : 132)) != 0)
+ ret = -EREMOTEIO;
+ }
+ if (priv->set_smoothedcvbs != 0) {
+ if (xc_write_reg(priv, XREG_SMOOTHEDCVBS, 1) != 0)
+ ret = -EREMOTEIO;
+ }
+ if (ret != 0) {
+ printk(KERN_ERR "xc4000: setting registers failed\n");
+ /* goto fail; */
+ }
+
+ xc_tune_channel(priv, priv->freq_hz);
+
+ ret = 0;
+
+fail:
+ mutex_unlock(&priv->lock);
+
+ return ret;
+}
+
+static int xc4000_set_analog_params(struct dvb_frontend *fe,
+ struct analog_parameters *params)
+{
+ struct xc4000_priv *priv = fe->tuner_priv;
+ unsigned int type = 0;
+ int ret = -EREMOTEIO;
+
+ if (params->mode == V4L2_TUNER_RADIO) {
+ dprintk(1, "%s() frequency=%d (in units of 62.5Hz)\n",
+ __func__, params->frequency);
+
+ mutex_lock(&priv->lock);
+
+ params->std = 0;
+ priv->freq_hz = params->frequency * 125L / 2;
+
+ if (audio_std & XC4000_AUDIO_STD_INPUT1) {
+ priv->video_standard = XC4000_FM_Radio_INPUT1;
+ type = FM | INPUT1;
+ } else {
+ priv->video_standard = XC4000_FM_Radio_INPUT2;
+ type = FM | INPUT2;
+ }
+
+ goto tune_channel;
+ }
+
+ dprintk(1, "%s() frequency=%d (in units of 62.5khz)\n",
+ __func__, params->frequency);
+
+ mutex_lock(&priv->lock);
+
+ /* params->frequency is in units of 62.5khz */
+ priv->freq_hz = params->frequency * 62500;
+
+ params->std &= V4L2_STD_ALL;
+ /* if std is not defined, choose one */
+ if (!params->std)
+ params->std = V4L2_STD_PAL_BG;
+
+ if (audio_std & XC4000_AUDIO_STD_MONO)
+ type = MONO;
+
+ if (params->std & V4L2_STD_MN) {
+ params->std = V4L2_STD_MN;
+ if (audio_std & XC4000_AUDIO_STD_MONO) {
+ priv->video_standard = XC4000_MN_NTSC_PAL_Mono;
+ } else if (audio_std & XC4000_AUDIO_STD_A2) {
+ params->std |= V4L2_STD_A2;
+ priv->video_standard = XC4000_MN_NTSC_PAL_A2;
+ } else {
+ params->std |= V4L2_STD_BTSC;
+ priv->video_standard = XC4000_MN_NTSC_PAL_BTSC;
+ }
+ goto tune_channel;
+ }
+
+ if (params->std & V4L2_STD_PAL_BG) {
+ params->std = V4L2_STD_PAL_BG;
+ if (audio_std & XC4000_AUDIO_STD_MONO) {
+ priv->video_standard = XC4000_BG_PAL_MONO;
+ } else if (!(audio_std & XC4000_AUDIO_STD_A2)) {
+ if (!(audio_std & XC4000_AUDIO_STD_B)) {
+ params->std |= V4L2_STD_NICAM_A;
+ priv->video_standard = XC4000_BG_PAL_NICAM;
+ } else {
+ params->std |= V4L2_STD_NICAM_B;
+ priv->video_standard = XC4000_BG_PAL_NICAM;
+ }
+ } else {
+ if (!(audio_std & XC4000_AUDIO_STD_B)) {
+ params->std |= V4L2_STD_A2_A;
+ priv->video_standard = XC4000_BG_PAL_A2;
+ } else {
+ params->std |= V4L2_STD_A2_B;
+ priv->video_standard = XC4000_BG_PAL_A2;
+ }
+ }
+ goto tune_channel;
+ }
+
+ if (params->std & V4L2_STD_PAL_I) {
+ /* default to NICAM audio standard */
+ params->std = V4L2_STD_PAL_I | V4L2_STD_NICAM;
+ if (audio_std & XC4000_AUDIO_STD_MONO)
+ priv->video_standard = XC4000_I_PAL_NICAM_MONO;
+ else
+ priv->video_standard = XC4000_I_PAL_NICAM;
+ goto tune_channel;
+ }
+
+ if (params->std & V4L2_STD_PAL_DK) {
+ params->std = V4L2_STD_PAL_DK;
+ if (audio_std & XC4000_AUDIO_STD_MONO) {
+ priv->video_standard = XC4000_DK_PAL_MONO;
+ } else if (audio_std & XC4000_AUDIO_STD_A2) {
+ params->std |= V4L2_STD_A2;
+ priv->video_standard = XC4000_DK_PAL_A2;
+ } else {
+ params->std |= V4L2_STD_NICAM;
+ priv->video_standard = XC4000_DK_PAL_NICAM;
+ }
+ goto tune_channel;
+ }
+
+ if (params->std & V4L2_STD_SECAM_DK) {
+ /* default to A2 audio standard */
+ params->std = V4L2_STD_SECAM_DK | V4L2_STD_A2;
+ if (audio_std & XC4000_AUDIO_STD_L) {
+ type = 0;
+ priv->video_standard = XC4000_DK_SECAM_NICAM;
+ } else if (audio_std & XC4000_AUDIO_STD_MONO) {
+ priv->video_standard = XC4000_DK_SECAM_A2MONO;
+ } else if (audio_std & XC4000_AUDIO_STD_K3) {
+ params->std |= V4L2_STD_SECAM_K3;
+ priv->video_standard = XC4000_DK_SECAM_A2LDK3;
+ } else {
+ priv->video_standard = XC4000_DK_SECAM_A2DK1;
+ }
+ goto tune_channel;
+ }
+
+ if (params->std & V4L2_STD_SECAM_L) {
+ /* default to NICAM audio standard */
+ type = 0;
+ params->std = V4L2_STD_SECAM_L | V4L2_STD_NICAM;
+ priv->video_standard = XC4000_L_SECAM_NICAM;
+ goto tune_channel;
+ }
+
+ if (params->std & V4L2_STD_SECAM_LC) {
+ /* default to NICAM audio standard */
+ type = 0;
+ params->std = V4L2_STD_SECAM_LC | V4L2_STD_NICAM;
+ priv->video_standard = XC4000_LC_SECAM_NICAM;
+ goto tune_channel;
+ }
+
+tune_channel:
+ /* FIXME: it could be air. */
+ priv->rf_mode = XC_RF_MODE_CABLE;
+
+ if (check_firmware(fe, type, params->std,
+ xc4000_standard[priv->video_standard].int_freq) != 0)
+ goto fail;
+
+ ret = xc_set_signal_source(priv, priv->rf_mode);
+ if (ret != 0) {
+ printk(KERN_ERR
+ "xc4000: xc_set_signal_source(%d) failed\n",
+ priv->rf_mode);
+ goto fail;
+ } else {
+ u16 video_mode, audio_mode;
+ video_mode = xc4000_standard[priv->video_standard].video_mode;
+ audio_mode = xc4000_standard[priv->video_standard].audio_mode;
+ if (priv->video_standard < XC4000_BG_PAL_A2) {
+ if (type & NOGD)
+ video_mode &= 0xFF7F;
+ } else if (priv->video_standard < XC4000_I_PAL_NICAM) {
+ if (priv->firm_version == 0x0102)
+ video_mode &= 0xFEFF;
+ if (audio_std & XC4000_AUDIO_STD_B)
+ video_mode |= 0x0080;
+ }
+ ret = xc_set_tv_standard(priv, video_mode, audio_mode);
+ if (ret != 0) {
+ printk(KERN_ERR "xc4000: xc_set_tv_standard failed\n");
+ goto fail;
+ }
+ }
+
+ if (xc_write_reg(priv, XREG_D_CODE, 0) == 0)
+ ret = 0;
+ if (xc_write_reg(priv, XREG_AMPLITUDE, 1) != 0)
+ ret = -EREMOTEIO;
+ if (priv->set_smoothedcvbs != 0) {
+ if (xc_write_reg(priv, XREG_SMOOTHEDCVBS, 1) != 0)
+ ret = -EREMOTEIO;
+ }
+ if (ret != 0) {
+ printk(KERN_ERR "xc4000: setting registers failed\n");
+ goto fail;
+ }
+
+ xc_tune_channel(priv, priv->freq_hz);
+
+ ret = 0;
+
+fail:
+ mutex_unlock(&priv->lock);
+
+ return ret;
+}
+
+static int xc4000_get_signal(struct dvb_frontend *fe, u16 *strength)
+{
+ struct xc4000_priv *priv = fe->tuner_priv;
+ u16 value = 0;
+ int rc;
+
+ mutex_lock(&priv->lock);
+ rc = xc4000_readreg(priv, XREG_SIGNAL_LEVEL, &value);
+ mutex_unlock(&priv->lock);
+
+ if (rc < 0)
+ goto ret;
+
+ /* Informations from real testing of DVB-T and radio part,
+ coeficient for one dB is 0xff.
+ */
+ tuner_dbg("Signal strength: -%ddB (%05d)\n", value >> 8, value);
+
+ /* all known digital modes */
+ if ((priv->video_standard == XC4000_DTV6) ||
+ (priv->video_standard == XC4000_DTV7) ||
+ (priv->video_standard == XC4000_DTV7_8) ||
+ (priv->video_standard == XC4000_DTV8))
+ goto digital;
+
+ /* Analog mode has NOISE LEVEL important, signal
+ depends only on gain of antenna and amplifiers,
+ but it doesn't tell anything about real quality
+ of reception.
+ */
+ mutex_lock(&priv->lock);
+ rc = xc4000_readreg(priv, XREG_NOISE_LEVEL, &value);
+ mutex_unlock(&priv->lock);
+
+ tuner_dbg("Noise level: %ddB (%05d)\n", value >> 8, value);
+
+ /* highest noise level: 32dB */
+ if (value >= 0x2000) {
+ value = 0;
+ } else {
+ value = ~value << 3;
+ }
+
+ goto ret;
+
+ /* Digital mode has SIGNAL LEVEL important and real
+ noise level is stored in demodulator registers.
+ */
+digital:
+ /* best signal: -50dB */
+ if (value <= 0x3200) {
+ value = 0xffff;
+ /* minimum: -114dB - should be 0x7200 but real zero is 0x713A */
+ } else if (value >= 0x713A) {
+ value = 0;
+ } else {
+ value = ~(value - 0x3200) << 2;
+ }
+
+ret:
+ *strength = value;
+
+ return rc;
+}
+
+static int xc4000_get_frequency(struct dvb_frontend *fe, u32 *freq)
+{
+ struct xc4000_priv *priv = fe->tuner_priv;
+
+ *freq = priv->freq_hz + priv->freq_offset;
+
+ if (debug) {
+ mutex_lock(&priv->lock);
+ if ((priv->cur_fw.type
+ & (BASE | FM | DTV6 | DTV7 | DTV78 | DTV8)) == BASE) {
+ u16 snr = 0;
+ if (xc4000_readreg(priv, XREG_SNR, &snr) == 0) {
+ mutex_unlock(&priv->lock);
+ dprintk(1, "%s() freq = %u, SNR = %d\n",
+ __func__, *freq, snr);
+ return 0;
+ }
+ }
+ mutex_unlock(&priv->lock);
+ }
+
+ dprintk(1, "%s()\n", __func__);
+
+ return 0;
+}
+
+static int xc4000_get_bandwidth(struct dvb_frontend *fe, u32 *bw)
+{
+ struct xc4000_priv *priv = fe->tuner_priv;
+ dprintk(1, "%s()\n", __func__);
+
+ *bw = priv->bandwidth;
+ return 0;
+}
+
+static int xc4000_get_status(struct dvb_frontend *fe, u32 *status)
+{
+ struct xc4000_priv *priv = fe->tuner_priv;
+ u16 lock_status = 0;
+
+ mutex_lock(&priv->lock);
+
+ if (priv->cur_fw.type & BASE)
+ xc_get_lock_status(priv, &lock_status);
+
+ *status = (lock_status == 1 ?
+ TUNER_STATUS_LOCKED | TUNER_STATUS_STEREO : 0);
+ if (priv->cur_fw.type & (DTV6 | DTV7 | DTV78 | DTV8))
+ *status &= (~TUNER_STATUS_STEREO);
+
+ mutex_unlock(&priv->lock);
+
+ dprintk(2, "%s() lock_status = %d\n", __func__, lock_status);
+
+ return 0;
+}
+
+static int xc4000_sleep(struct dvb_frontend *fe)
+{
+ struct xc4000_priv *priv = fe->tuner_priv;
+ int ret = 0;
+
+ dprintk(1, "%s()\n", __func__);
+
+ mutex_lock(&priv->lock);
+
+ /* Avoid firmware reload on slow devices */
+ if ((no_poweroff == 2 ||
+ (no_poweroff == 0 && priv->default_pm != 0)) &&
+ (priv->cur_fw.type & BASE) != 0) {
+ /* force reset and firmware reload */
+ priv->cur_fw.type = XC_POWERED_DOWN;
+
+ if (xc_write_reg(priv, XREG_POWER_DOWN, 0) != 0) {
+ printk(KERN_ERR
+ "xc4000: %s() unable to shutdown tuner\n",
+ __func__);
+ ret = -EREMOTEIO;
+ }
+ msleep(20);
+ }
+
+ mutex_unlock(&priv->lock);
+
+ return ret;
+}
+
+static int xc4000_init(struct dvb_frontend *fe)
+{
+ dprintk(1, "%s()\n", __func__);
+
+ return 0;
+}
+
+static int xc4000_release(struct dvb_frontend *fe)
+{
+ struct xc4000_priv *priv = fe->tuner_priv;
+
+ dprintk(1, "%s()\n", __func__);
+
+ mutex_lock(&xc4000_list_mutex);
+
+ if (priv)
+ hybrid_tuner_release_state(priv);
+
+ mutex_unlock(&xc4000_list_mutex);
+
+ fe->tuner_priv = NULL;
+
+ return 0;
+}
+
+static const struct dvb_tuner_ops xc4000_tuner_ops = {
+ .info = {
+ .name = "Xceive XC4000",
+ .frequency_min = 1000000,
+ .frequency_max = 1023000000,
+ .frequency_step = 50000,
+ },
+
+ .release = xc4000_release,
+ .init = xc4000_init,
+ .sleep = xc4000_sleep,
+
+ .set_params = xc4000_set_params,
+ .set_analog_params = xc4000_set_analog_params,
+ .get_frequency = xc4000_get_frequency,
+ .get_rf_strength = xc4000_get_signal,
+ .get_bandwidth = xc4000_get_bandwidth,
+ .get_status = xc4000_get_status
+};
+
+struct dvb_frontend *xc4000_attach(struct dvb_frontend *fe,
+ struct i2c_adapter *i2c,
+ struct xc4000_config *cfg)
+{
+ struct xc4000_priv *priv = NULL;
+ int instance;
+ u16 id = 0;
+
+ dprintk(1, "%s(%d-%04x)\n", __func__,
+ i2c ? i2c_adapter_id(i2c) : -1,
+ cfg ? cfg->i2c_address : -1);
+
+ mutex_lock(&xc4000_list_mutex);
+
+ instance = hybrid_tuner_request_state(struct xc4000_priv, priv,
+ hybrid_tuner_instance_list,
+ i2c, cfg->i2c_address, "xc4000");
+ switch (instance) {
+ case 0:
+ goto fail;
+ case 1:
+ /* new tuner instance */
+ priv->bandwidth = 6000000;
+ /* set default configuration */
+ priv->if_khz = 4560;
+ priv->default_pm = 0;
+ priv->dvb_amplitude = 134;
+ priv->set_smoothedcvbs = 1;
+ mutex_init(&priv->lock);
+ fe->tuner_priv = priv;
+ break;
+ default:
+ /* existing tuner instance */
+ fe->tuner_priv = priv;
+ break;
+ }
+
+ if (cfg->if_khz != 0) {
+ /* copy configuration if provided by the caller */
+ priv->if_khz = cfg->if_khz;
+ priv->default_pm = cfg->default_pm;
+ priv->dvb_amplitude = cfg->dvb_amplitude;
+ priv->set_smoothedcvbs = cfg->set_smoothedcvbs;
+ }
+
+ /* Check if firmware has been loaded. It is possible that another
+ instance of the driver has loaded the firmware.
+ */
+
+ if (instance == 1) {
+ if (xc4000_readreg(priv, XREG_PRODUCT_ID, &id) != 0)
+ goto fail;
+ } else {
+ id = ((priv->cur_fw.type & BASE) != 0 ?
+ priv->hwmodel : XC_PRODUCT_ID_FW_NOT_LOADED);
+ }
+
+ switch (id) {
+ case XC_PRODUCT_ID_XC4000:
+ case XC_PRODUCT_ID_XC4100:
+ printk(KERN_INFO
+ "xc4000: Successfully identified at address 0x%02x\n",
+ cfg->i2c_address);
+ printk(KERN_INFO
+ "xc4000: Firmware has been loaded previously\n");
+ break;
+ case XC_PRODUCT_ID_FW_NOT_LOADED:
+ printk(KERN_INFO
+ "xc4000: Successfully identified at address 0x%02x\n",
+ cfg->i2c_address);
+ printk(KERN_INFO
+ "xc4000: Firmware has not been loaded previously\n");
+ break;
+ default:
+ printk(KERN_ERR
+ "xc4000: Device not found at addr 0x%02x (0x%x)\n",
+ cfg->i2c_address, id);
+ goto fail;
+ }
+
+ mutex_unlock(&xc4000_list_mutex);
+
+ memcpy(&fe->ops.tuner_ops, &xc4000_tuner_ops,
+ sizeof(struct dvb_tuner_ops));
+
+ if (instance == 1) {
+ int ret;
+ mutex_lock(&priv->lock);
+ ret = xc4000_fwupload(fe);
+ mutex_unlock(&priv->lock);
+ if (ret != 0)
+ goto fail2;
+ }
+
+ return fe;
+fail:
+ mutex_unlock(&xc4000_list_mutex);
+fail2:
+ xc4000_release(fe);
+ return NULL;
+}
+EXPORT_SYMBOL(xc4000_attach);
+
+MODULE_AUTHOR("Steven Toth, Davide Ferri");
+MODULE_DESCRIPTION("Xceive xc4000 silicon tuner driver");
+MODULE_LICENSE("GPL");
+MODULE_FIRMWARE(XC4000_DEFAULT_FIRMWARE_NEW);
+MODULE_FIRMWARE(XC4000_DEFAULT_FIRMWARE);
Code Review / kvmfornfv.git / blobdiff