/*
- * For the Realtek RTL chip RTL2831U
- * Realtek Release Date: 2008-03-14, ver 080314
- * Realtek version RTL2831 Linux driver version 080314
- * ver 080314
- *
- * for linux kernel version 2.6.21.4 - 2.6.22-14
- * support MXL5005s and MT2060 tuners (support tuner auto-detecting)
- * support two IR types -- RC5 and NEC
- *
- * Known boards with Realtek RTL chip RTL2821U
- * Freecom USB stick 14aa:0160 (version 4)
- * Conceptronic CTVDIGRCU
- *
- * Copyright (c) 2008 Realtek
- * Copyright (c) 2008 Jan Hoogenraad, Barnaby Shearer, Andy Hasper
- * This code is placed under the terms of the GNU General Public License
- *
- * Released by Realtek under GPLv2.
- * Thanks to Realtek for a lot of support we received !
- *
- * Revision: 080314 - original version
- */
+ MaxLinear MXL5005S VSB/QAM/DVBT tuner driver
+
+ Copyright (C) 2008 MaxLinear
+ Copyright (C) 2006 Steven Toth <stoth@hauppauge.com>
+ Functions:
+ mxl5005s_reset()
+ mxl5005s_writereg()
+ mxl5005s_writeregs()
+ mxl5005s_init()
+ mxl5005s_reconfigure()
+ mxl5005s_AssignTunerMode()
+ mxl5005s_set_params()
+ mxl5005s_get_frequency()
+ mxl5005s_get_bandwidth()
+ mxl5005s_release()
+ mxl5005s_attach()
+
+ Copyright (c) 2008 Realtek
+ Copyright (c) 2008 Jan Hoogenraad, Barnaby Shearer, Andy Hasper
+ Functions:
+ mxl5005s_SetRfFreqHz()
+
+ 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.
+
+*/
+
+/*
+ History of this driver (Steven Toth):
+ I was given a public release of a linux driver that included
+ support for the MaxLinear MXL5005S silicon tuner. Analysis of
+ the tuner driver showed clearly three things.
+
+ 1. The tuner driver didn't support the LinuxTV tuner API
+ so the code Realtek added had to be removed.
+
+ 2. A significant amount of the driver is reference driver code
+ from MaxLinear, I felt it was important to identify and
+ preserve this.
+
+ 3. New code has to be added to interface correctly with the
+ LinuxTV API, as a regular kernel module.
+
+ Other than the reference driver enum's, I've clearly marked
+ sections of the code and retained the copyright of the
+ respective owners.
+*/
#include "mxl5005s.h"
struct mxl5005s_config *config;
struct dvb_frontend *frontend;
struct i2c_adapter *i2c;
+
+ /* Cache values */
+ u32 current_mode;
+
};
-// funcs
u16 MXL_ControlWrite(struct dvb_frontend *fe, u16 ControlNum, u32 value);
u16 MXL_ControlRead(struct dvb_frontend *fe, u16 controlNum, u32 *value);
u16 MXL_GetMasterControl(u8 *MasterReg, int state);
void MXL_SynthIFLO_Calc(struct dvb_frontend *fe);
void MXL_SynthRFTGLO_Calc(struct dvb_frontend *fe);
u16 MXL_GetCHRegister_ZeroIF(struct dvb_frontend *fe, u8 *RegNum, u8 *RegVal, int *count);
-int mxl5005s_SetRegsWithTable(struct dvb_frontend *fe, u8 *pAddrTable, u8 *pByteTable, int TableLen);
+int mxl5005s_writeregs(struct dvb_frontend *fe, u8 *addrtable, u8 *datatable, u8 len);
u16 MXL_IFSynthInit(struct dvb_frontend *fe);
-int mxl5005s_AssignTunerMode(struct dvb_frontend *fe);
+int mxl5005s_AssignTunerMode(struct dvb_frontend *fe, u32 mod_type, u32 bandwidth);
+int mxl5005s_reconfigure(struct dvb_frontend *fe, u32 mod_type, u32 bandwidth);
+
+/* ----------------------------------------------------------------
+ * Begin: Custom code salvaged from the Realtek driver.
+ * Copyright (c) 2008 Realtek
+ * Copyright (c) 2008 Jan Hoogenraad, Barnaby Shearer, Andy Hasper
+ * This code is placed under the terms of the GNU General Public License
+ *
+ * Released by Realtek under GPLv2.
+ * Thanks to Realtek for a lot of support we received !
+ *
+ * Revision: 080314 - original version
+ */
int mxl5005s_SetRfFreqHz(struct dvb_frontend *fe, unsigned long RfFreqHz)
{
AddrTable[0] = MASTER_CONTROL_ADDR;
ByteTable[0] |= state->config->AgcMasterByte;
- mxl5005s_SetRegsWithTable(fe, AddrTable, ByteTable, 1);
+ mxl5005s_writeregs(fe, AddrTable, ByteTable, 1);
// Tuner RF frequency setting stage 1
MXL_TuneRF(fe, RfFreqHz);
ByteTable[TableLen] = MasterControlByte | state->config->AgcMasterByte;
TableLen += 1;
- mxl5005s_SetRegsWithTable(fe, AddrTable, ByteTable, TableLen);
+ mxl5005s_writeregs(fe, AddrTable, ByteTable, TableLen);
// Wait 30 ms.
msleep(150);
ByteTable[TableLen] = MasterControlByte | state->config->AgcMasterByte ;
TableLen += 1;
- mxl5005s_SetRegsWithTable(fe, AddrTable, ByteTable, TableLen);
+ mxl5005s_writeregs(fe, AddrTable, ByteTable, TableLen);
msleep(100);
return 0;
}
+/* End: Custom code taken from the Realtek driver */
-static int mxl5005s_reset(struct dvb_frontend *fe)
-{
- struct mxl5005s_state *state = fe->tuner_priv;
- int ret = 0;
-
- u8 buf[2] = { 0xff, 0x00 };
- struct i2c_msg msg = { .addr = state->config->i2c_address, .flags = 0,
- .buf = buf, .len = 2 };
-
- dprintk(2, "%s()\n", __func__);
-
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 1);
-
- if (i2c_transfer(state->i2c, &msg, 1) != 1) {
- printk(KERN_WARNING "mxl5005s I2C reset failed\n");
- ret = -EREMOTEIO;
- }
-
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 0);
-
- return ret;
-}
-
-/* Write a single byte to a single reg */
-static int mxl5005s_writereg(struct dvb_frontend *fe, u8 reg, u8 val, int latch)
-{
- struct mxl5005s_state *state = fe->tuner_priv;
- u8 buf[3] = { reg, val, MXL5005S_LATCH_BYTE };
- struct i2c_msg msg = { .addr = state->config->i2c_address, .flags = 0,
- .buf = buf, .len = 3 };
-
- if(latch == 0)
- msg.len = 2;
-
- dprintk(2, "%s(reg = 0x%x val = 0x%x addr = 0x%x)\n", __func__, reg, val, msg.addr);
-
- if (i2c_transfer(state->i2c, &msg, 1) != 1) {
- printk(KERN_WARNING "mxl5005s I2C write failed\n");
- return -EREMOTEIO;
- }
- return 0;
-}
-
-int mxl5005s_SetRegsWithTable(struct dvb_frontend *fe, u8 *pAddrTable, u8 *pByteTable, int TableLen)
-{
- int i, ret = 0;
-
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 1);
-
- for( i = 0 ; i < TableLen - 1 ; i++)
- {
- ret = mxl5005s_writereg(fe, pAddrTable[i], pByteTable[i], 0);
- if (ret < 0)
- break;
- }
-
- ret = mxl5005s_writereg(fe, pAddrTable[i], pByteTable[i], 1);
-
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 0);
-
- return ret;
-}
-
-int mxl5005s_SetRegMaskBits(struct dvb_frontend *fe,
- unsigned char RegAddr,
- unsigned char Msb,
- unsigned char Lsb,
- const unsigned char WritingValue
- )
-{
- int i;
-
- unsigned char Mask;
- unsigned char Shift;
- unsigned char RegByte;
-
- /* Generate mask and shift according to MSB and LSB. */
- Mask = 0;
- for(i = Lsb; i < (unsigned char)(Msb + 1); i++)
- Mask |= 0x1 << i;
-
- Shift = Lsb;
-
- /* Get tuner register byte according to register adddress. */
- MXL_RegRead(fe, RegAddr, &RegByte);
-
- /* Reserve register byte unmask bit with mask and inlay writing value into it. */
- RegByte &= ~Mask;
- RegByte |= (WritingValue << Shift) & Mask;
-
- /* Update tuner register byte table. */
- MXL_RegWrite(fe, RegAddr, RegByte);
-
- /* Write tuner register byte with writing byte. */
- return mxl5005s_SetRegsWithTable(fe, &RegAddr, &RegByte, 1);
-}
-
-
-// The following context is source code provided by MaxLinear.
-// MaxLinear source code - MXL5005_Initialize.cpp
-// DONE
+/* ----------------------------------------------------------------
+ * Begin: Reference driver code found in the Realtek driver.
+ * Copyright (c) 2008 MaxLinear
+ */
u16 MXL5005_RegisterInit(struct dvb_frontend *fe)
{
struct mxl5005s_state *state = fe->tuner_priv;
return 0 ;
}
-// DONE
u16 MXL5005_ControlInit(struct dvb_frontend *fe)
{
struct mxl5005s_state *state = fe->tuner_priv;
// MaxLinear source code - MXL5005_c.cpp
// MXL5005.cpp : Defines the initialization routines for the DLL.
// 2.6.12
-// DONE
void InitTunerControls(struct dvb_frontend *fe)
{
MXL5005_RegisterInit(fe);
// > 0 : Failed //
// //
///////////////////////////////////////////////////////////////////////////////
-// DONE
u16 MXL5005_TunerConfig(struct dvb_frontend *fe,
u8 Mode, /* 0: Analog Mode ; 1: Digital Mode */
u8 IF_mode, /* for Analog Mode, 0: zero IF; 1: low IF */
// > 0 : Failed //
// //
///////////////////////////////////////////////////////////////////////////////
-// DONE
void MXL_SynthIFLO_Calc(struct dvb_frontend *fe)
{
struct mxl5005s_state *state = fe->tuner_priv;
// > 0 : Failed //
// //
///////////////////////////////////////////////////////////////////////////////
-// DONE
void MXL_SynthRFTGLO_Calc(struct dvb_frontend *fe)
{
struct mxl5005s_state *state = fe->tuner_priv;
// > 0 : Failed //
// //
///////////////////////////////////////////////////////////////////////////////
-// DONE
u16 MXL_OverwriteICDefault(struct dvb_frontend *fe)
{
u16 status = 0;
// > 0 : Failed //
// //
///////////////////////////////////////////////////////////////////////////////
-// DONE
u16 MXL_BlockInit(struct dvb_frontend *fe)
{
struct mxl5005s_state *state = fe->tuner_priv;
return status ;
}
-// DONE
u16 MXL_SetGPIO(struct dvb_frontend *fe, u8 GPIO_Num, u8 GPIO_Val)
{
u16 status = 0;
// >0 : Value exceed maximum allowed for control number //
// //
///////////////////////////////////////////////////////////////////////////////
-// DONE
u16 MXL_ControlWrite(struct dvb_frontend *fe, u16 ControlNum, u32 value)
{
u16 status = 0;
// 2 : Control name not found //
// //
///////////////////////////////////////////////////////////////////////////////
-// DONE
u16 MXL_ControlWrite_Group(struct dvb_frontend *fe, u16 controlNum, u32 value, u16 controlGroup)
{
struct mxl5005s_state *state = fe->tuner_priv;
// -1 : Invalid Register Address //
// //
///////////////////////////////////////////////////////////////////////////////
-// DONE
u16 MXL_RegWrite(struct dvb_frontend *fe, u8 RegNum, u8 RegVal)
{
struct mxl5005s_state *state = fe->tuner_priv;
// -1 : Invalid Register Address //
// //
///////////////////////////////////////////////////////////////////////////////
-// DONE
u16 MXL_RegRead(struct dvb_frontend *fe, u8 RegNum, u8 *RegVal)
{
struct mxl5005s_state *state = fe->tuner_priv;
// -1 : Invalid control name //
// //
///////////////////////////////////////////////////////////////////////////////
-// DONE
u16 MXL_ControlRead(struct dvb_frontend *fe, u16 controlNum, u32 *value)
{
struct mxl5005s_state *state = fe->tuner_priv;
// -1 : Invalid control name //
// //
///////////////////////////////////////////////////////////////////////////////
-// DONE
u16 MXL_ControlRegRead(struct dvb_frontend *fe, u16 controlNum, u8 *RegNum, int * count)
{
struct mxl5005s_state *state = fe->tuner_priv;
// NONE //
// //
///////////////////////////////////////////////////////////////////////////////
-// DONE
void MXL_RegWriteBit(struct dvb_frontend *fe, u8 address, u8 bit, u8 bitVal)
{
struct mxl5005s_state *state = fe->tuner_priv;
// Computed value //
// //
///////////////////////////////////////////////////////////////////////////////
-// DONE
u32 MXL_Ceiling(u32 value, u32 resolution)
{
return (value/resolution + (value % resolution > 0 ? 1 : 0));
//
// Retrieve the Initialzation Registers
//
-// DONE
u16 MXL_GetInitRegister(struct dvb_frontend *fe, u8 * RegNum, u8 *RegVal, int *count)
{
u16 status = 0;
return status;
}
-// DONE
u16 MXL_GetCHRegister(struct dvb_frontend *fe, u8 * RegNum, u8 *RegVal, int *count)
{
u16 status = 0;
return status;
}
-// DONE
u16 MXL_GetCHRegister_ZeroIF(struct dvb_frontend *fe, u8 * RegNum, u8 *RegVal, int *count)
{
u16 status = 0;
return status;
}
-// DONE
u16 MXL_GetCHRegister_LowIF(struct dvb_frontend *fe, u8 * RegNum, u8 *RegVal, int *count)
{
u16 status = 0;
return status;
}
-// DONE
u16 MXL_GetMasterControl(u8 *MasterReg, int state)
{
if (state == 1) /* Load_Start */
return status;
}
-// DONE
u16 MXL_Hystersis_Test(struct dvb_frontend *fe, int Hystersis)
{
struct mxl5005s_state *state = fe->tuner_priv;
return status;
}
-
#endif
+/* End: Reference driver code found in the Realtek driver that
+ * is copyright MaxLinear */
+
+/* ----------------------------------------------------------------
+ * Begin: Everything after here is new code to adapt the
+ * proprietary Realtek driver into a Linux API tuner.
+ * Copyright (C) 2008 Steven Toth <stoth@hauppauge.com>
+ */
+static int mxl5005s_reset(struct dvb_frontend *fe)
+{
+ struct mxl5005s_state *state = fe->tuner_priv;
+ int ret = 0;
+
+ u8 buf[2] = { 0xff, 0x00 };
+ struct i2c_msg msg = { .addr = state->config->i2c_address, .flags = 0,
+ .buf = buf, .len = 2 };
+
+ dprintk(2, "%s()\n", __func__);
+
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 1);
+
+ if (i2c_transfer(state->i2c, &msg, 1) != 1) {
+ printk(KERN_WARNING "mxl5005s I2C reset failed\n");
+ ret = -EREMOTEIO;
+ }
+
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 0);
+
+ return ret;
+}
+
+/* Write a single byte to a single reg, latch the value if required by
+ * following the transaction with the latch byte.
+ */
+static int mxl5005s_writereg(struct dvb_frontend *fe, u8 reg, u8 val, int latch)
+{
+ struct mxl5005s_state *state = fe->tuner_priv;
+ u8 buf[3] = { reg, val, MXL5005S_LATCH_BYTE };
+ struct i2c_msg msg = { .addr = state->config->i2c_address, .flags = 0,
+ .buf = buf, .len = 3 };
+
+ if (latch == 0)
+ msg.len = 2;
+
+ dprintk(2, "%s(reg = 0x%x val = 0x%x addr = 0x%x)\n", __func__, reg, val, msg.addr);
+
+ if (i2c_transfer(state->i2c, &msg, 1) != 1) {
+ printk(KERN_WARNING "mxl5005s I2C write failed\n");
+ return -EREMOTEIO;
+ }
+ return 0;
+}
+
+int mxl5005s_writeregs(struct dvb_frontend *fe, u8 *addrtable, u8 *datatable, u8 len)
+{
+ int ret = 0, i;
+
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 1);
+
+ for (i = 0 ; i < len-1; i++) {
+ ret = mxl5005s_writereg(fe, addrtable[i], datatable[i], 0);
+ if (ret < 0)
+ break;
+ }
+
+ ret = mxl5005s_writereg(fe, addrtable[i], datatable[i], 1);
+
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 0);
+
+ return ret;
+}
-/* Linux driver related functions */
int mxl5005s_init(struct dvb_frontend *fe)
+{
+ dprintk(1, "%s()\n", __func__);
+ return mxl5005s_reconfigure(fe, MXL_QAM, MXL5005S_BANDWIDTH_6MHZ);
+}
+
+int mxl5005s_reconfigure(struct dvb_frontend *fe, u32 mod_type, u32 bandwidth)
{
struct mxl5005s_state *state = fe->tuner_priv;
u8 ByteTable[MXL5005S_REG_WRITING_TABLE_LEN_MAX];
int TableLen;
- dprintk(1, "%s()\n", __func__);
+ dprintk(1, "%s(type=%d, bw=%d)\n", __func__, mod_type, bandwidth);
mxl5005s_reset(fe);
AddrTable[0] = MASTER_CONTROL_ADDR;
ByteTable[0] |= state->config->AgcMasterByte;
- mxl5005s_SetRegsWithTable(fe, AddrTable, ByteTable, 1);
+ mxl5005s_writeregs(fe, AddrTable, ByteTable, 1);
- mxl5005s_AssignTunerMode(fe); // tunre_config
+ mxl5005s_AssignTunerMode(fe, mod_type, bandwidth);
/* Tuner initialization stage 1 */
MXL_GetInitRegister(fe, AddrTable, ByteTable, &TableLen);
- mxl5005s_SetRegsWithTable(fe, AddrTable, ByteTable, TableLen);
+ mxl5005s_writeregs(fe, AddrTable, ByteTable, TableLen);
return 0;
}
-int mxl5005s_AssignTunerMode(struct dvb_frontend *fe)
+int mxl5005s_AssignTunerMode(struct dvb_frontend *fe, u32 mod_type, u32 bandwidth)
{
struct mxl5005s_state *state = fe->tuner_priv;
struct mxl5005s_config *c = state->config;
fe,
c->mod_mode,
c->if_mode,
- MXL5005S_BANDWIDTH_6MHZ,
+ bandwidth,
c->if_freq,
c->xtal_freq,
c->agc_mode,
c->div_out,
c->cap_select,
c->rssi_enable,
- MXL_QAM,
+ mod_type,
c->tracking_filter);
return 0;
static int mxl5005s_set_params(struct dvb_frontend *fe,
struct dvb_frontend_parameters *params)
{
- u32 freq;
- u32 bw;
+ struct mxl5005s_state *state = fe->tuner_priv;
+ u32 req_mode, req_bw = 0;
+ int ret;
- if (fe->ops.info.type == FE_OFDM)
- bw = params->u.ofdm.bandwidth;
- else
- bw = MXL5005S_BANDWIDTH_6MHZ;
+ dprintk(1, "%s()\n", __func__);
+
+ if (fe->ops.info.type == FE_ATSC) {
+ switch (params->u.vsb.modulation) {
+ case VSB_8:
+ req_mode = MXL_ATSC; break;
+ default:
+ case QAM_64:
+ case QAM_256:
+ case QAM_AUTO:
+ req_mode = MXL_QAM; break;
+ }
+ }
+ else req_mode = MXL_DVBT;
+
+ /* Change tuner for new modulation type if reqd */
+ if (req_mode != state->current_mode) {
+ switch (req_mode) {
+ case VSB_8:
+ case QAM_64:
+ case QAM_256:
+ case QAM_AUTO:
+ req_bw = MXL5005S_BANDWIDTH_6MHZ;
+ break;
+ default:
+ /* Assume DVB-T */
+ switch (params->u.ofdm.bandwidth) {
+ case BANDWIDTH_6_MHZ:
+ req_bw = MXL5005S_BANDWIDTH_6MHZ;
+ break;
+ case BANDWIDTH_7_MHZ:
+ req_bw = MXL5005S_BANDWIDTH_7MHZ;
+ break;
+ case BANDWIDTH_AUTO:
+ case BANDWIDTH_8_MHZ:
+ req_bw = MXL5005S_BANDWIDTH_8MHZ;
+ break;
+ }
+ }
- freq = params->frequency; /* Hz */
- dprintk(1, "%s() freq=%d bw=%d\n", __func__, freq, bw);
+ state->current_mode = req_mode;
+ ret = mxl5005s_reconfigure(fe, req_mode, req_bw);
- mxl5005s_SetRfFreqHz(fe, freq);
+ } else
+ ret = 0;
- msleep(350);
+ if (ret == 0) {
+ dprintk(1, "%s() freq=%d\n", __func__, params->frequency);
+ ret = mxl5005s_SetRfFreqHz(fe, params->frequency);
+ }
- return 0;
+ return ret;
}
static int mxl5005s_get_frequency(struct dvb_frontend *fe, u32 *frequency)
return 0;
}
-static int mxl5005s_get_status(struct dvb_frontend *fe, u32 *status)
-{
- dprintk(1, "%s()\n", __func__);
-
- *status = 0;
- // *status = TUNER_STATUS_LOCKED;
-
- return 0;
-}
-
static int mxl5005s_release(struct dvb_frontend *fe)
{
dprintk(1, "%s()\n", __func__);
.set_params = mxl5005s_set_params,
.get_frequency = mxl5005s_get_frequency,
.get_bandwidth = mxl5005s_get_bandwidth,
- .get_status = mxl5005s_get_status
};
struct dvb_frontend *mxl5005s_attach(struct dvb_frontend *fe,
state->frontend = fe;
state->config = config;
state->i2c = i2c;
+ state->current_mode = MXL_QAM;
printk(KERN_INFO "MXL5005S: Attached at address 0x%02x\n", config->i2c_address);
EXPORT_SYMBOL(mxl5005s_attach);
MODULE_DESCRIPTION("MaxLinear MXL5005S silicon tuner driver");
-MODULE_AUTHOR("Jan Hoogenraad");
-MODULE_AUTHOR("Barnaby Shearer");
-MODULE_AUTHOR("Andy Hasper");
MODULE_AUTHOR("Steven Toth");
MODULE_LICENSE("GPL");
projects / GitHub / LineageOS / android_kernel_motorola_exynos9610.git / commitdiff