--- /dev/null
+/*
+ * Driver for Xceive XC5000 "QAM/8VSB single chip tuner"
+ *
+ * Copyright (c) 2007 Xceive Corporation
+ * Copyright (c) 2007 Steven Toth <stoth@hauppauge.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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/delay.h>
+#include <linux/dvb/frontend.h>
+#include <linux/i2c.h>
+
+#include "dvb_frontend.h"
+
+#include "xc5000.h"
+#include "xc5000_priv.h"
+
+static int debug;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");
+
+#define dprintk(level,fmt, arg...) if (debug >= level) \
+ printk(KERN_INFO "%s: " fmt, "xc5000", ## arg)
+
+#define XC5000_DEFAULT_FIRMWARE "dvb-fe-xc5000-1.1.fw"
+#define XC5000_DEFAULT_FIRMWARE_SIZE 12400
+
+/* Misc Defines */
+#define MAX_TV_STANDARD 23
+#define XC_MAX_I2C_WRITE_LENGTH 64
+
+/* Signal Types */
+#define XC_RF_MODE_AIR 0
+#define XC_RF_MODE_CABLE 1
+
+/* Result codes */
+#define XC_RESULT_SUCCESS 0
+#define XC_RESULT_RESET_FAILURE 1
+#define XC_RESULT_I2C_WRITE_FAILURE 2
+#define XC_RESULT_I2C_READ_FAILURE 3
+#define XC_RESULT_OUT_OF_RANGE 5
+
+/* Registers */
+#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_IF_OUT 0x05
+#define XREG_SEEK_MODE 0x07
+#define XREG_POWER_DOWN 0x0A
+#define XREG_SIGNALSOURCE 0x0D /* 0=Air, 1=Cable */
+#define XREG_SMOOTHEDCVBS 0x0E
+#define XREG_XTALFREQ 0x0F
+#define XREG_FINERFFREQ 0x10
+#define XREG_DDIMODE 0x11
+
+#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_BUSY 0x09
+
+/*
+ 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.
+
+*/
+typedef struct {
+ char *Name;
+ unsigned short AudioMode;
+ unsigned short VideoMode;
+} XC_TV_STANDARD;
+
+/* Tuner standards */
+#define DTV6 17
+
+XC_TV_STANDARD XC5000_Standard[MAX_TV_STANDARD] = {
+ {"M/N-NTSC/PAL-BTSC", 0x0400, 0x8020},
+ {"M/N-NTSC/PAL-A2", 0x0600, 0x8020},
+ {"M/N-NTSC/PAL-EIAJ", 0x0440, 0x8020},
+ {"M/N-NTSC/PAL-Mono", 0x0478, 0x8020},
+ {"B/G-PAL-A2", 0x0A00, 0x8049},
+ {"B/G-PAL-NICAM", 0x0C04, 0x8049},
+ {"B/G-PAL-MONO", 0x0878, 0x8059},
+ {"I-PAL-NICAM", 0x1080, 0x8009},
+ {"I-PAL-NICAM-MONO", 0x0E78, 0x8009},
+ {"D/K-PAL-A2", 0x1600, 0x8009},
+ {"D/K-PAL-NICAM", 0x0E80, 0x8009},
+ {"D/K-PAL-MONO", 0x1478, 0x8009},
+ {"D/K-SECAM-A2 DK1", 0x1200, 0x8009},
+ {"D/K-SECAM-A2 L/DK3",0x0E00, 0x8009},
+ {"D/K-SECAM-A2 MONO", 0x1478, 0x8009},
+ {"L-SECAM-NICAM", 0x8E82, 0x0009},
+ {"L'-SECAM-NICAM", 0x8E82, 0x4009},
+ {"DTV6", 0x00C0, 0x8002},
+ {"DTV8", 0x00C0, 0x800B},
+ {"DTV7/8", 0x00C0, 0x801B},
+ {"DTV7", 0x00C0, 0x8007},
+ {"FM Radio-INPUT2", 0x9802, 0x9002},
+ {"FM Radio-INPUT1", 0x0208, 0x9002}
+};
+
+static int xc5000_writeregs(struct xc5000_priv *priv, u8 *buf, u8 len);
+static int xc5000_readregs(struct xc5000_priv *priv, u8 *buf, u8 len);
+static void xc5000_TunerReset(struct dvb_frontend *fe);
+
+int xc_send_i2c_data(struct xc5000_priv *priv,
+ unsigned char *bytes_to_send, int nb_bytes_to_send)
+{
+ return xc5000_writeregs(priv, bytes_to_send, nb_bytes_to_send)
+ ? XC_RESULT_I2C_WRITE_FAILURE : XC_RESULT_SUCCESS;
+}
+
+int xc_read_i2c_data(struct xc5000_priv *priv, unsigned char *bytes_received,
+ int nb_bytes_to_receive)
+{
+ return xc5000_readregs(priv, bytes_received, nb_bytes_to_receive)
+ ? XC_RESULT_I2C_READ_FAILURE : XC_RESULT_SUCCESS;
+}
+
+int xc_reset(struct dvb_frontend *fe)
+{
+ xc5000_TunerReset(fe);
+ return XC_RESULT_SUCCESS;
+}
+
+void xc_wait(int wait_ms)
+{
+ msleep( wait_ms );
+}
+
+static void xc5000_TunerReset(struct dvb_frontend *fe)
+{
+ struct xc5000_priv *priv = fe->tuner_priv;
+ int ret;
+
+ dprintk(1, "%s()\n", __FUNCTION__);
+
+ if(priv->cfg->tuner_reset) {
+ ret = priv->cfg->tuner_reset(fe);
+ if (ret)
+ printk(KERN_ERR "xc5000: reset failed\n");
+ } else
+ printk(KERN_ERR "xc5000: no tuner reset function, fatal\n");
+}
+
+int xc_write_reg(struct xc5000_priv *priv, unsigned short int regAddr,
+ unsigned short int i2cData)
+{
+ unsigned char buf[4];
+ int WatchDogTimer = 5;
+ 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);
+ if ( result == XC_RESULT_SUCCESS) {
+ /* wait for busy flag to clear */
+ while ((WatchDogTimer > 0) && (result == XC_RESULT_SUCCESS)) {
+ buf[0] = 0;
+ buf[1] = XREG_BUSY;
+
+ result = xc_send_i2c_data(priv, buf, 2);
+ if (result == XC_RESULT_SUCCESS) {
+ result = xc_read_i2c_data(priv, buf, 2);
+ if (result == XC_RESULT_SUCCESS) {
+ if ((buf[0] == 0) && (buf[1] == 0)) {
+ /* busy flag cleared */
+ break;
+ } else {
+ xc_wait(100); /* wait 5 ms */
+ WatchDogTimer--;
+ }
+ }
+ }
+ }
+ }
+ if (WatchDogTimer < 0)
+ result = XC_RESULT_I2C_WRITE_FAILURE;
+
+ return result;
+}
+
+int xc_read_reg(struct xc5000_priv *priv, unsigned short int regAddr,
+ unsigned short int *i2cData)
+{
+ unsigned char buf[2];
+ int result;
+
+ buf[0] = (regAddr >> 8) & 0xFF;
+ buf[1] = regAddr & 0xFF;
+ result = xc_send_i2c_data(priv, buf, 2);
+ if (result!=XC_RESULT_SUCCESS)
+ return result;
+
+ result = xc_read_i2c_data(priv, buf, 2);
+ if (result!=XC_RESULT_SUCCESS)
+ return result;
+
+ *i2cData = buf[0] * 256 + buf[1];
+ return result;
+}
+
+int xc_load_i2c_sequence(struct dvb_frontend *fe, unsigned char i2c_sequence[])
+{
+ struct xc5000_priv *priv = fe->tuner_priv;
+
+ int i, nbytes_to_send, result;
+ unsigned int len, pos, index;
+ unsigned char 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 */
+ result = xc_reset(fe);
+ index += 2;
+ if (result!=XC_RESULT_SUCCESS)
+ return result;
+ } else if (len & 0x8000) {
+ /* WAIT command */
+ xc_wait(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!=XC_RESULT_SUCCESS)
+ return result;
+
+ pos += nbytes_to_send - 2;
+ }
+ index += len;
+ }
+ }
+ return XC_RESULT_SUCCESS;
+}
+
+int xc_initialize(struct xc5000_priv *priv)
+{
+ dprintk(1, "%s()\n", __FUNCTION__);
+ return xc_write_reg(priv, XREG_INIT, 0);
+}
+
+int xc_SetTVStandard(struct xc5000_priv *priv, unsigned short int VideoMode,
+ unsigned short int AudioMode)
+{
+ int ret;
+ dprintk(1, "%s(%d,%d)\n", __FUNCTION__, VideoMode, AudioMode);
+ dprintk(1, "%s() Standard = %s\n",
+ __FUNCTION__,
+ XC5000_Standard[priv->video_standard].Name);
+
+ ret = xc_write_reg(priv, XREG_VIDEO_MODE, VideoMode);
+ if (ret == XC_RESULT_SUCCESS)
+ ret = xc_write_reg(priv, XREG_AUDIO_MODE, AudioMode);
+
+ return ret;
+}
+
+int xc_shutdown(struct xc5000_priv *priv)
+{
+ return xc_write_reg(priv, XREG_POWER_DOWN, 0);
+}
+
+int xc_SetSignalSource(struct xc5000_priv *priv, unsigned short int rf_mode)
+{
+ dprintk(1, "%s(%d) Source = %s\n", __FUNCTION__, 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",
+ __FUNCTION__);
+ }
+ return xc_write_reg(priv, XREG_SIGNALSOURCE, rf_mode);
+}
+
+int xc_set_RF_frequency(struct xc5000_priv *priv, long frequency_in_hz)
+{
+ unsigned int frequency_code = (unsigned int)(frequency_in_hz / 15625);
+
+ if ((frequency_in_hz>1023000000) || (frequency_in_hz<1000000))
+ return XC_RESULT_OUT_OF_RANGE;
+
+ return xc_write_reg(priv, XREG_RF_FREQ ,frequency_code);
+}
+
+int xc_FineTune_RF_frequency(struct xc5000_priv *priv, long frequency_in_hz)
+{
+ unsigned int frequency_code = (unsigned int)(frequency_in_hz / 15625);
+ if ((frequency_in_hz>1023000000) || (frequency_in_hz<1000000))
+ return XC_RESULT_OUT_OF_RANGE;
+
+ return xc_write_reg(priv, XREG_FINERFFREQ ,frequency_code);
+}
+
+int xc_set_IF_frequency(struct xc5000_priv *priv, u32 freq_hz)
+{
+ u32 freq_code = (freq_hz * 1024)/1000000;
+ dprintk(1, "%s(%d)\n", __FUNCTION__, freq_hz);
+
+ printk(KERN_ERR "FIXME - Hardcoded IF, FIXME\n");
+ freq_code = 0x1585;
+
+ return xc_write_reg(priv, XREG_IF_OUT ,freq_code);
+}
+
+int xc_set_Xtal_frequency(struct xc5000_priv *priv, long xtalFreqInKHz)
+{
+ unsigned int xtalRatio = (32000 * 0x8000)/xtalFreqInKHz;
+ return xc_write_reg(priv, XREG_XTALFREQ ,xtalRatio);
+}
+
+int xc_get_ADC_Envelope(struct xc5000_priv *priv,
+ unsigned short int *adc_envelope)
+{
+ return xc_read_reg(priv, XREG_ADC_ENV, adc_envelope);
+}
+
+int xc_get_frequency_error(struct xc5000_priv *priv, u32 *frequency_error_hz)
+{
+ int result;
+ unsigned short int regData;
+ u32 tmp;
+
+ result = xc_read_reg(priv, XREG_FREQ_ERROR, ®Data);
+ if (result)
+ return result;
+
+ tmp = (u32)regData;
+ (*frequency_error_hz) = (tmp * 15625) / 1000;
+ return result;
+}
+
+int xc_get_lock_status(struct xc5000_priv *priv,
+ unsigned short int *lock_status)
+{
+ return xc_read_reg(priv, XREG_LOCK, lock_status);
+}
+
+int xc_get_version(struct xc5000_priv *priv,
+ unsigned char* hw_majorversion,
+ unsigned char* hw_minorversion,
+ unsigned char* fw_majorversion,
+ unsigned char* fw_minorversion)
+{
+ unsigned short int data;
+ int result;
+
+ result = xc_read_reg(priv, XREG_VERSION, &data);
+ if (result)
+ return result;
+
+ (*hw_majorversion) = (data>>12) & 0x0F;
+ (*hw_minorversion) = (data>>8) & 0x0F;
+ (*fw_majorversion) = (data>>4) & 0x0F;
+ (*fw_minorversion) = (data) & 0x0F;
+
+ return 0;
+}
+
+int xc_get_product_id(struct xc5000_priv *priv, unsigned short int *product_id)
+{
+ return xc_read_reg(priv, XREG_PRODUCT_ID, product_id);
+}
+
+int xc_get_hsync_freq(struct xc5000_priv *priv, int *hsync_freq_hz)
+{
+ unsigned short int regData;
+ int result;
+
+ result = xc_read_reg(priv, XREG_HSYNC_FREQ, ®Data);
+ if (result)
+ return result;
+
+ (*hsync_freq_hz) = ((regData & 0x0fff) * 763)/100;
+ return result;
+}
+
+int xc_get_frame_lines(struct xc5000_priv *priv,
+ unsigned short int *frame_lines)
+{
+ return xc_read_reg(priv, XREG_FRAME_LINES, frame_lines);
+}
+
+int xc_get_quality(struct xc5000_priv *priv, unsigned short int *quality)
+{
+ return xc_read_reg(priv, XREG_QUALITY, quality);
+}
+
+unsigned short int WaitForLock(struct xc5000_priv *priv)
+{
+ unsigned short int lockState = 0;
+ int watchDogCount = 40;
+ while ((lockState == 0) && (watchDogCount > 0))
+ {
+ xc_get_lock_status(priv, &lockState);
+ if (lockState != 1)
+ {
+ xc_wait(5);
+ watchDogCount--;
+ }
+ }
+ return lockState;
+}
+
+int xc_tune_channel(struct xc5000_priv *priv, u32 freq)
+{
+ int found = 0;
+
+ dprintk(1, "%s(%d)\n", __FUNCTION__, freq);
+
+ if (xc_set_RF_frequency(priv, freq) != XC_RESULT_SUCCESS)
+ return 0;
+
+ if (WaitForLock(priv)== 1)
+ found = 1;
+
+ return found;
+}
+
+static int xc5000_readreg(struct xc5000_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->cfg->i2c_address,
+ .flags = 0, .buf = &buf[0], .len = 2 },
+ { .addr = priv->cfg->i2c_address,
+ .flags = I2C_M_RD, .buf = &bval[0], .len = 2 },
+ };
+
+ if (i2c_transfer(priv->i2c, msg, 2) != 2) {
+ printk(KERN_WARNING "xc5000 I2C read failed\n");
+ return -EREMOTEIO;
+ }
+
+ *val = (bval[0] << 8) | bval[1];
+ return 0;
+}
+
+static int xc5000_writeregs(struct xc5000_priv *priv, u8 *buf, u8 len)
+{
+ struct i2c_msg msg = { .addr = priv->cfg->i2c_address,
+ .flags = 0, .buf = buf, .len = len };
+
+ if (i2c_transfer(priv->i2c, &msg, 1) != 1) {
+ printk(KERN_ERR "xc5000 I2C write failed (len=%i)\n",
+ (int)len);
+ return -EREMOTEIO;
+ }
+ return 0;
+}
+
+static int xc5000_readregs(struct xc5000_priv *priv, u8 *buf, u8 len)
+{
+ struct i2c_msg msg = { .addr = priv->cfg->i2c_address,
+ .flags = I2C_M_RD, .buf = buf, .len = len };
+
+ if (i2c_transfer(priv->i2c, &msg, 1) != 1) {
+ printk(KERN_ERR "xc5000 I2C read failed (len=%i)\n",(int)len);
+ return -EREMOTEIO;
+ }
+ return 0;
+}
+
+static int xc5000_fwupload(struct dvb_frontend* fe)
+{
+ struct xc5000_priv *priv = fe->tuner_priv;
+ const struct firmware *fw;
+ int ret;
+
+ /* request the firmware, this will block until someone uploads it */
+ printk(KERN_INFO "xc5000: waiting for firmware upload (%s)...\n",
+ XC5000_DEFAULT_FIRMWARE);
+
+ if(!priv->cfg->request_firmware) {
+ printk(KERN_ERR "xc5000: no firmware callback, fatal\n");
+ return -EIO;
+ }
+
+ ret = priv->cfg->request_firmware(fe, &fw, XC5000_DEFAULT_FIRMWARE);
+ if (ret) {
+ printk(KERN_ERR "xc5000: Upload failed. (file not found?)\n");
+ ret = XC_RESULT_RESET_FAILURE;
+ } else {
+ printk(KERN_INFO "xc5000: firmware read %d bytes.\n", fw->size);
+ ret = XC_RESULT_SUCCESS;
+ }
+
+ if(fw->size != XC5000_DEFAULT_FIRMWARE_SIZE) {
+ printk(KERN_ERR "xc5000: firmware incorrect size\n");
+ ret = XC_RESULT_RESET_FAILURE;
+ } else {
+ printk(KERN_INFO "xc5000: firmware upload\n");
+ ret = xc_load_i2c_sequence(fe, fw->data );
+ }
+
+ release_firmware(fw);
+ return ret;
+}
+
+void xc_debug_dump(struct xc5000_priv *priv)
+{
+ unsigned short adc_envelope;
+ u32 frequency_error_hz;
+ unsigned short lock_status;
+ unsigned char hw_majorversion, hw_minorversion = 0;
+ unsigned char fw_majorversion, fw_minorversion = 0;
+ int hsync_freq_hz;
+ unsigned short frame_lines;
+ unsigned short quality;
+
+ /* Wait for stats to stabilize.
+ * Frame Lines needs two frame times after initial lock
+ * before it is valid.
+ */
+ xc_wait( 100 );
+
+ xc_get_ADC_Envelope(priv, &adc_envelope );
+ dprintk(1, "*** ADC envelope (0-1023) = %u\n", adc_envelope);
+
+ xc_get_frequency_error(priv, &frequency_error_hz );
+ dprintk(1, "*** Frequency error = %d Hz\n", frequency_error_hz);
+
+ xc_get_lock_status(priv, &lock_status );
+ dprintk(1, "*** Lock status (0-Wait, 1-Locked, 2-No-signal) = %u\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);
+
+ xc_get_hsync_freq(priv, &hsync_freq_hz );
+ dprintk(1, "*** Horizontal sync frequency = %u Hz\n", hsync_freq_hz);
+
+ xc_get_frame_lines(priv, &frame_lines );
+ dprintk(1, "*** Frame lines = %u\n", frame_lines);
+
+ xc_get_quality(priv, &quality );
+ dprintk(1, "*** Quality (0:<8dB, 7:>56dB) = %u\n", quality);
+}
+
+static int xc5000_set_params(struct dvb_frontend *fe,
+ struct dvb_frontend_parameters *params)
+{
+ struct xc5000_priv *priv = fe->tuner_priv;
+
+ dprintk(1, "%s() frequency=%d\n", __FUNCTION__, params->frequency);
+
+ priv->frequency = params->frequency - 1750000;
+ priv->bandwidth = 6;
+ priv->video_standard = DTV6;
+
+ switch(params->u.vsb.modulation) {
+ case VSB_8:
+ case VSB_16:
+ dprintk(1, "%s() VSB modulation\n", __FUNCTION__);
+ priv->rf_mode = XC_RF_MODE_AIR;
+ break;
+ case QAM_64:
+ case QAM_256:
+ case QAM_AUTO:
+ dprintk(1, "%s() QAM modulation\n", __FUNCTION__);
+ priv->rf_mode = XC_RF_MODE_CABLE;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ dprintk(1, "%s() frequency=%d (compensated)\n",
+ __FUNCTION__, priv->frequency);
+
+ /* FIXME: check result codes */
+ xc_SetSignalSource(priv, priv->rf_mode);
+
+ xc_SetTVStandard(priv,
+ XC5000_Standard[priv->video_standard].VideoMode,
+ XC5000_Standard[priv->video_standard].AudioMode);
+
+ xc_set_IF_frequency(priv, priv->cfg->if_frequency);
+ xc_tune_channel(priv, priv->frequency);
+ xc_debug_dump(priv);
+
+ return 0;
+}
+
+static int xc5000_get_frequency(struct dvb_frontend *fe, u32 *freq)
+{
+ struct xc5000_priv *priv = fe->tuner_priv;
+ dprintk(1, "%s()\n", __FUNCTION__);
+ *freq = priv->frequency;
+ return 0;
+}
+
+static int xc5000_get_bandwidth(struct dvb_frontend *fe, u32 *bw)
+{
+ struct xc5000_priv *priv = fe->tuner_priv;
+ dprintk(1, "%s()\n", __FUNCTION__);
+ *bw = priv->bandwidth;
+ return 0;
+}
+
+static int xc5000_get_status(struct dvb_frontend *fe, u32 *status)
+{
+ struct xc5000_priv *priv = fe->tuner_priv;
+ unsigned short int lock_status = 0;
+
+ xc_get_lock_status(priv, &lock_status);
+
+ dprintk(1, "%s() lock_status = 0x%08x\n", __FUNCTION__, lock_status);
+
+ *status = lock_status;
+
+ return 0;
+}
+
+int xc_load_fw_and_init_tuner(struct dvb_frontend *fe)
+{
+ struct xc5000_priv *priv = fe->tuner_priv;
+ int ret;
+
+ if(priv->fwloaded == 0) {
+ ret = xc5000_fwupload(fe);
+ if( ret != XC_RESULT_SUCCESS )
+ return -EREMOTEIO;
+
+ priv->fwloaded = 1;
+ }
+
+ /* Start the tuner self-calibration process */
+ ret |= xc_initialize(priv);
+
+ /* Wait for calibration to complete.
+ * We could continue but XC5000 will clock stretch subsequent
+ * I2C transactions until calibration is complete. This way we
+ * don't have to rely on clock stretching working.
+ */
+ xc_wait( 100 );
+
+ /* Default to "CABLE" mode */
+ ret |= xc_write_reg(priv, XREG_SIGNALSOURCE, XC_RF_MODE_CABLE);
+
+ return ret;
+}
+
+static int xc5000_init(struct dvb_frontend *fe)
+{
+ struct xc5000_priv *priv = fe->tuner_priv;
+ dprintk(1, "%s()\n", __FUNCTION__);
+
+ xc_load_fw_and_init_tuner(fe);
+ xc_debug_dump(priv);
+
+ return 0;
+}
+
+static int xc5000_release(struct dvb_frontend *fe)
+{
+ dprintk(1, "%s()\n", __FUNCTION__);
+ kfree(fe->tuner_priv);
+ fe->tuner_priv = NULL;
+ return 0;
+}
+
+static const struct dvb_tuner_ops xc5000_tuner_ops = {
+ .info = {
+ .name = "Xceive XC5000",
+ .frequency_min = 1000000,
+ .frequency_max = 1023000000,
+ .frequency_step = 50000,
+ },
+
+ .release = xc5000_release,
+ .init = xc5000_init,
+
+ .set_params = xc5000_set_params,
+ .get_frequency = xc5000_get_frequency,
+ .get_bandwidth = xc5000_get_bandwidth,
+ .get_status = xc5000_get_status
+};
+
+struct dvb_frontend * xc5000_attach(struct dvb_frontend *fe,
+ struct i2c_adapter *i2c,
+ struct xc5000_config *cfg)
+{
+ struct xc5000_priv *priv = NULL;
+ u16 id = 0;
+
+ dprintk(1, "%s()\n", __FUNCTION__);
+
+ priv = kzalloc(sizeof(struct xc5000_priv), GFP_KERNEL);
+ if (priv == NULL)
+ return NULL;
+
+ priv->cfg = cfg;
+ priv->bandwidth = 6000000; /* 6MHz */
+ priv->i2c = i2c;
+ priv->fwloaded = 0;
+
+ if (xc5000_readreg(priv, XREG_PRODUCT_ID, &id) != 0) {
+ kfree(priv);
+ return NULL;
+ }
+
+ if ( (id != 0x2000) && (id != 0x1388) ) {
+ printk(KERN_ERR
+ "xc5000: Device not found at addr 0x%02x (0x%x)\n",
+ cfg->i2c_address, id);
+ kfree(priv);
+ return NULL;
+ }
+
+ printk(KERN_INFO "xc5000: successfully identified at address 0x%02x\n",
+ cfg->i2c_address);
+
+ memcpy(&fe->ops.tuner_ops, &xc5000_tuner_ops,
+ sizeof(struct dvb_tuner_ops));
+
+ fe->tuner_priv = priv;
+
+ return fe;
+}
+EXPORT_SYMBOL(xc5000_attach);
+
+MODULE_AUTHOR("Steven Toth");
+MODULE_DESCRIPTION("Xceive XC5000 silicon tuner driver");
+MODULE_LICENSE("GPL");
projects / platform / adaptation / renesas_rcar / renesas_kernel.git / commitdiff