/*
* budget-patch.c: driver for Budget Patch,
* hardware modification of DVB-S cards enabling full TS
*
* Written by Emard <emard@softhome.net>
*
* Original idea by Roberto Deza <rdeza@unav.es>
*
* Special thanks to Holger Waechtler, Michael Hunold, Marian Durkovic
* and Metzlerbros
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
* Or, point your browser to http://www.gnu.org/copyleft/gpl.html
*
*
* the project's page is at http://www.linuxtv.org/dvb/
*/
#include "av7110.h"
#include "av7110_hw.h"
#include "budget.h"
#include "stv0299.h"
#include "ves1x93.h"
#include "tda8083.h"
#include "bsru6.h"
#define budget_patch budget
static struct saa7146_extension budget_extension;
MAKE_BUDGET_INFO(ttbp, "TT-Budget/Patch DVB-S 1.x PCI", BUDGET_PATCH);
//MAKE_BUDGET_INFO(satel,"TT-Budget/Patch SATELCO PCI", BUDGET_TT_HW_DISEQC);
static struct pci_device_id pci_tbl[] = {
MAKE_EXTENSION_PCI(ttbp,0x13c2, 0x0000),
// MAKE_EXTENSION_PCI(satel, 0x13c2, 0x1013),
{
.vendor = 0,
}
};
/* those lines are for budget-patch to be tried
** on a true budget card and observe the
** behaviour of VSYNC generated by rps1.
** this code was shamelessly copy/pasted from budget.c
*/
static void gpio_Set22K (struct budget *budget, int state)
{
struct saa7146_dev *dev=budget->dev;
dprintk(2, "budget: %p\n", budget);
saa7146_setgpio(dev, 3, (state ? SAA7146_GPIO_OUTHI : SAA7146_GPIO_OUTLO));
}
/* Diseqc functions only for TT Budget card */
/* taken from the Skyvision DVB driver by
Ralph Metzler <rjkm@metzlerbros.de> */
static void DiseqcSendBit (struct budget *budget, int data)
{
struct saa7146_dev *dev=budget->dev;
dprintk(2, "budget: %p\n", budget);
saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTHI);
udelay(data ? 500 : 1000);
saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTLO);
udelay(data ? 1000 : 500);
}
static void DiseqcSendByte (struct budget *budget, int data)
{
int i, par=1, d;
dprintk(2, "budget: %p\n", budget);
for (i=7; i>=0; i--) {
d = (data>>i)&1;
par ^= d;
DiseqcSendBit(budget, d);
}
DiseqcSendBit(budget, par);
}
static int SendDiSEqCMsg (struct budget *budget, int len, u8 *msg, unsigned long burst)
{
struct saa7146_dev *dev=budget->dev;
int i;
dprintk(2, "budget: %p\n", budget);
saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTLO);
mdelay(16);
for (i=0; i<len; i++)
DiseqcSendByte(budget, msg[i]);
mdelay(16);
if (burst!=-1) {
if (burst)
DiseqcSendByte(budget, 0xff);
else {
saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTHI);
udelay(12500);
saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTLO);
}
msleep(20);
}
return 0;
}
/* shamelessly copy/pasted from budget.c
*/
static int budget_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
{
struct budget* budget = (struct budget*) fe->dvb->priv;
switch (tone) {
case SEC_TONE_ON:
gpio_Set22K (budget, 1);
break;
case SEC_TONE_OFF:
gpio_Set22K (budget, 0);
break;
default:
return -EINVAL;
}
return 0;
}
static int budget_diseqc_send_master_cmd(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd* cmd)
{
struct budget* budget = (struct budget*) fe->dvb->priv;
SendDiSEqCMsg (budget, cmd->msg_len, cmd->msg, 0);
return 0;
}
static int budget_diseqc_send_burst(struct dvb_frontend* fe, fe_sec_mini_cmd_t minicmd)
{
struct budget* budget = (struct budget*) fe->dvb->priv;
SendDiSEqCMsg (budget, 0, NULL, minicmd);
return 0;
}
static int budget_av7110_send_fw_cmd(struct budget_patch *budget, u16* buf, int length)
{
int i;
dprintk(2, "budget: %p\n", budget);
for (i = 2; i < length; i++)
{
ttpci_budget_debiwrite(budget, DEBINOSWAP, COMMAND + 2*i, 2, (u32) buf[i], 0,0);
msleep(5);
}
if (length)
ttpci_budget_debiwrite(budget, DEBINOSWAP, COMMAND + 2, 2, (u32) buf[1], 0,0);
else
ttpci_budget_debiwrite(budget, DEBINOSWAP, COMMAND + 2, 2, 0, 0,0);
msleep(5);
ttpci_budget_debiwrite(budget, DEBINOSWAP, COMMAND, 2, (u32) buf[0], 0,0);
msleep(5);
return 0;
}
static void av7110_set22k(struct budget_patch *budget, int state)
{
u16 buf[2] = {( COMTYPE_AUDIODAC << 8) | (state ? ON22K : OFF22K), 0};
dprintk(2, "budget: %p\n", budget);
budget_av7110_send_fw_cmd(budget, buf, 2);
}
static int av7110_send_diseqc_msg(struct budget_patch *budget, int len, u8 *msg, int burst)
{
int i;
u16 buf[18] = { ((COMTYPE_AUDIODAC << 8) | SendDiSEqC),
16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
dprintk(2, "budget: %p\n", budget);
if (len>10)
len=10;
buf[1] = len+2;
buf[2] = len;
if (burst != -1)
buf[3]=burst ? 0x01 : 0x00;
else
buf[3]=0xffff;
for (i=0; i<len; i++)
buf[i+4]=msg[i];
budget_av7110_send_fw_cmd(budget, buf, 18);
return 0;
}
static int budget_patch_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
{
struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;
switch (tone) {
case SEC_TONE_ON:
av7110_set22k (budget, 1);
break;
case SEC_TONE_OFF:
av7110_set22k (budget, 0);
break;
default:
return -EINVAL;
}
return 0;
}
static int budget_patch_diseqc_send_master_cmd(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd* cmd)
{
struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;
av7110_send_diseqc_msg (budget, cmd->msg_len, cmd->msg, 0);
return 0;
}
static int budget_patch_diseqc_send_burst(struct dvb_frontend* fe, fe_sec_mini_cmd_t minicmd)
{
struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;
av7110_send_diseqc_msg (budget, 0, NULL, minicmd);
return 0;
}
static int alps_bsrv2_pll_set(struct dvb_frontend* fe, struct dvb_frontend_parameters* params)
{
struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;
u8 pwr = 0;
u8 buf[4];
struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = buf, .len = sizeof(buf) };
u32 div = (params->frequency + 479500) / 125;
if (params->frequency > 2000000) pwr = 3;
else if (params->frequency > 1800000) pwr = 2;
else if (params->frequency > 1600000) pwr = 1;
else if (params->frequency > 1200000) pwr = 0;
else if (params->frequency >= 1100000) pwr = 1;
else pwr = 2;
buf[0] = (div >> 8) & 0x7f;
buf[1] = div & 0xff;
buf[2] = ((div & 0x18000) >> 10) | 0x95;
buf[3] = (pwr << 6) | 0x30;
// NOTE: since we're using a prescaler of 2, we set the
// divisor frequency to 62.5kHz and divide by 125 above
if (i2c_transfer (&budget->i2c_adap, &msg, 1) != 1) return -EIO;
return 0;
}
static struct ves1x93_config alps_bsrv2_config = {
.demod_address = 0x08,
.xin = 90100000UL,
.invert_pwm = 0,
.pll_set = alps_bsrv2_pll_set,
};
static int grundig_29504_451_pll_set(struct dvb_frontend* fe, struct dvb_frontend_parameters* params)
{
struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;
u32 div;
u8 data[4];
struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = data, .len = sizeof(data) };
div = params->frequency / 125;
data[0] = (div >> 8) & 0x7f;
data[1] = div & 0xff;
data[2] = 0x8e;
data[3] = 0x00;
if (i2c_transfer (&budget->i2c_adap, &msg, 1) != 1) return -EIO;
return 0;
}
static struct tda8083_config grundig_29504_451_config = {
.demod_address = 0x68,
.pll_set = grundig_29504_451_pll_set,
};
static void frontend_init(struct budget_patch* budget)
{
switch(budget->dev->pci->subsystem_device) {
case 0x0000: // Hauppauge/TT WinTV DVB-S rev1.X
case 0x1013: // SATELCO Multimedia PCI
// try the ALPS BSRV2 first of all
budget->dvb_frontend = ves1x93_attach(&alps_bsrv2_config, &budget->i2c_adap);
if (budget->dvb_frontend) {
budget->dvb_frontend->ops->diseqc_send_master_cmd = budget_patch_diseqc_send_master_cmd;
budget->dvb_frontend->ops->diseqc_send_burst = budget_patch_diseqc_send_burst;
budget->dvb_frontend->ops->set_tone = budget_patch_set_tone;
break;
}
// try the ALPS BSRU6 now
budget->dvb_frontend = stv0299_attach(&alps_bsru6_config, &budget->i2c_adap);
if (budget->dvb_frontend) {
budget->dvb_frontend->ops->diseqc_send_master_cmd = budget_diseqc_send_master_cmd;
budget->dvb_frontend->ops->diseqc_send_burst = budget_diseqc_send_burst;
budget->dvb_frontend->ops->set_tone = budget_set_tone;
break;
}
// Try the grundig 29504-451
budget->dvb_frontend = tda8083_attach(&grundig_29504_451_config, &budget->i2c_adap);
if (budget->dvb_frontend) {
budget->dvb_frontend->ops->diseqc_send_master_cmd = budget_diseqc_send_master_cmd;
budget->dvb_frontend->ops->diseqc_send_burst = budget_diseqc_send_burst;
budget->dvb_frontend->ops->set_tone = budget_set_tone;
break;
}
break;
}
if (budget->dvb_frontend == NULL) {
printk("dvb-ttpci: A frontend driver was not found for device %04x/%04x subsystem %04x/%04x\n",
budget->dev->pci->vendor,
budget->dev->pci->device,
budget->dev->pci->subsystem_vendor,
budget->dev->pci->subsystem_device);
} else {
if (dvb_register_frontend(&budget->dvb_adapter, budget->dvb_frontend)) {
printk("budget-av: Frontend registration failed!\n");
if (budget->dvb_frontend->ops->release)
budget->dvb_frontend->ops->release(budget->dvb_frontend);
budget->dvb_frontend = NULL;
}
}
}
/* written by Emard */
static int budget_patch_attach (struct saa7146_dev* dev, struct saa7146_pci_extension_data *info)
{
struct budget_patch *budget;
int err;
int count = 0;
int detected = 0;
#define PATCH_RESET 0
#define RPS_IRQ 0
#define HPS_SETUP 0
#if PATCH_RESET
saa7146_write(dev, MC1, MASK_31);
msleep(40);
#endif
#if HPS_SETUP
// initialize registers. Better to have it like this
// than leaving something unconfigured
saa7146_write(dev, DD1_STREAM_B, 0);
// port B VSYNC at rising edge
saa7146_write(dev, DD1_INIT, 0x00000200); // have this in budget-core too!
saa7146_write(dev, BRS_CTRL, 0x00000000); // VBI
// debi config
// saa7146_write(dev, DEBI_CONFIG, MASK_30|MASK_28|MASK_18);
// zero all HPS registers
saa7146_write(dev, HPS_H_PRESCALE, 0); // r68
saa7146_write(dev, HPS_H_SCALE, 0); // r6c
saa7146_write(dev, BCS_CTRL, 0); // r70
saa7146_write(dev, HPS_V_SCALE, 0); // r60
saa7146_write(dev, HPS_V_GAIN, 0); // r64
saa7146_write(dev, CHROMA_KEY_RANGE, 0); // r74
saa7146_write(dev, CLIP_FORMAT_CTRL, 0); // r78
// Set HPS prescaler for port B input
saa7146_write(dev, HPS_CTRL, (1<<30) | (0<<29) | (1<<28) | (0<<12) );
saa7146_write(dev, MC2,
0 * (MASK_08 | MASK_24) | // BRS control
0 * (MASK_09 | MASK_25) | // a
0 * (MASK_10 | MASK_26) | // b
1 * (MASK_06 | MASK_22) | // HPS_CTRL1
1 * (MASK_05 | MASK_21) | // HPS_CTRL2
0 * (MASK_01 | MASK_15) // DEBI
);
#endif
// Disable RPS1 and RPS0
saa7146_write(dev, MC1, ( MASK_29 | MASK_28));
// RPS1 timeout disable
saa7146_write(dev, RPS_TOV1, 0);
// code for autodetection
// will wait for VBI_B event (vertical blank at port B)
// and will reset GPIO3 after VBI_B is detected.
// (GPIO3 should be raised high by CPU to
// test if GPIO3 will generate vertical blank signal
// in budget patch GPIO3 is connected to VSYNC_B
count = 0;
#if 0
WRITE_RPS1(cpu_to_le32(CMD_UPLOAD |
MASK_10 | MASK_09 | MASK_08 | MASK_06 | MASK_05 | MASK_04 | MASK_03 | MASK_02 ));
#endif
WRITE_RPS1(cpu_to_le32(CMD_PAUSE | EVT_VBI_B));
WRITE_RPS1(cpu_to_le32(CMD_WR_REG_MASK | (GPIO_CTRL>>2)));
WRITE_RPS1(cpu_to_le32(GPIO3_MSK));
WRITE_RPS1(cpu_to_le32(SAA7146_GPIO_OUTLO<<24));
#if RPS_IRQ
// issue RPS1 interrupt to increment counter
WRITE_RPS1(cpu_to_le32(CMD_INTERRUPT));
// at least a NOP is neede between two interrupts
WRITE_RPS1(cpu_to_le32(CMD_NOP));
// interrupt again
WRITE_RPS1(cpu_to_le32(CMD_INTERRUPT));
#endif
WRITE_RPS1(cpu_to_le32(CMD_STOP));
#if RPS_IRQ
// set event counter 1 source as RPS1 interrupt (0x03) (rE4 p53)
// use 0x03 to track RPS1 interrupts - increase by 1 every gpio3 is toggled
// use 0x15 to track VPE interrupts - increase by 1 every vpeirq() is called
saa7146_write(dev, EC1SSR, (0x03<<2) | 3 );
// set event counter 1 treshold to maximum allowed value (rEC p55)
saa7146_write(dev, ECT1R, 0x3fff );
#endif
// Fix VSYNC level
saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTLO);
// Set RPS1 Address register to point to RPS code (r108 p42)
saa7146_write(dev, RPS_ADDR1, dev->d_rps1.dma_handle);
// Enable RPS1, (rFC p33)
saa7146_write(dev, MC1, (MASK_13 | MASK_29 ));
mdelay(50);
saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTHI);
mdelay(150);
if( (saa7146_read(dev, GPIO_CTRL) & 0x10000000) == 0)
detected = 1;
#if RPS_IRQ
printk("Event Counter 1 0x%04x\n", saa7146_read(dev, EC1R) & 0x3fff );
#endif
// Disable RPS1
saa7146_write(dev, MC1, ( MASK_29 ));
if(detected == 0)
printk("budget-patch not detected or saa7146 in non-default state.\n"
"try enabling ressetting of 7146 with MASK_31 in MC1 register\n");
else
printk("BUDGET-PATCH DETECTED.\n");
/* OLD (Original design by Roberto Deza):
** This code will setup the SAA7146_RPS1 to generate a square
** wave on GPIO3, changing when a field (TS_HEIGHT/2 "lines" of
** TS_WIDTH packets) has been acquired on SAA7146_D1B video port;
** then, this GPIO3 output which is connected to the D1B_VSYNC
** input, will trigger the acquisition of the alternate field
** and so on.
** Currently, the TT_budget / WinTV_Nova cards have two ICs
** (74HCT4040, LVC74) for the generation of this VSYNC signal,
** which seems that can be done perfectly without this :-)).
*/
/* New design (By Emard)
** this rps1 code will copy internal HS event to GPIO3 pin.
** GPIO3 is in budget-patch hardware connectd to port B VSYNC
** HS is an internal event of 7146, accessible with RPS
** and temporarily raised high every n lines
** (n in defined in the RPS_THRESH1 counter threshold)
** I think HS is raised high on the beginning of the n-th line
** and remains high until this n-th line that triggered
** it is completely received. When the receiption of n-th line
** ends, HS is lowered.
** To transmit data over DMA, 7146 needs changing state at
** port B VSYNC pin. Any changing of port B VSYNC will
** cause some DMA data transfer, with more or less packets loss.
** It depends on the phase and frequency of VSYNC and
** the way of 7146 is instructed to trigger on port B (defined
** in DD1_INIT register, 3rd nibble from the right valid
** numbers are 0-7, see datasheet)
**
** The correct triggering can minimize packet loss,
** dvbtraffic should give this stable bandwidths:
** 22k transponder = 33814 kbit/s
** 27.5k transponder = 38045 kbit/s
** by experiment it is found that the best results
** (stable bandwidths and almost no packet loss)
** are obtained using DD1_INIT triggering number 2
** (Va at rising edge of VS Fa = HS x VS-failing forced toggle)
** and a VSYNC phase that occurs in the middle of DMA transfer
** (about byte 188*512=96256 in the DMA window).
**
** Phase of HS is still not clear to me how to control,
** It just happens to be so. It can be seen if one enables
** RPS_IRQ and print Event Counter 1 in vpeirq(). Every
** time RPS_INTERRUPT is called, the Event Counter 1 will
** increment. That's how the 7146 is programmed to do event
** counting in this budget-patch.c
** I *think* HPS setting has something to do with the phase
** of HS but I cant be 100% sure in that.
** hardware debug note: a working budget card (including budget patch)
** with vpeirq() interrupt setup in mode "0x90" (every 64K) will
** generate 3 interrupts per 25-Hz DMA frame of 2*188*512 bytes
** and that means 3*25=75 Hz of interrupt freqency, as seen by
** watch cat /proc/interrupts
**
** If this frequency is 3x lower (and data received in the DMA
** buffer don't start with 0x47, but in the middle of packets,
** whose lengths appear to be like 188 292 188 104 etc.
** this means VSYNC line is not connected in the hardware.
** (check soldering pcb and pins)
** The same behaviour of missing VSYNC can be duplicated on budget
** cards, by seting DD1_INIT trigger mode 7 in 3rd nibble.
*/
// Setup RPS1 "program" (p35)
count = 0;
// Wait Source Line Counter Threshold (p36)
WRITE_RPS1(cpu_to_le32(CMD_PAUSE | EVT_HS));
// Set GPIO3=1 (p42)
WRITE_RPS1(cpu_to_le32(CMD_WR_REG_MASK | (GPIO_CTRL>>2)));
WRITE_RPS1(cpu_to_le32(GPIO3_MSK));
WRITE_RPS1(cpu_to_le32(SAA7146_GPIO_OUTHI<<24));
#if RPS_IRQ
// issue RPS1 interrupt
WRITE_RPS1(cpu_to_le32(CMD_INTERRUPT));
#endif
// Wait reset Source Line Counter Threshold (p36)
WRITE_RPS1(cpu_to_le32(CMD_PAUSE | RPS_INV | EVT_HS));
// Set GPIO3=0 (p42)
WRITE_RPS1(cpu_to_le32(CMD_WR_REG_MASK | (GPIO_CTRL>>2)));
WRITE_RPS1(cpu_to_le32(GPIO3_MSK));
WRITE_RPS1(cpu_to_le32(SAA7146_GPIO_OUTLO<<24));
#if RPS_IRQ
// issue RPS1 interrupt
WRITE_RPS1(cpu_to_le32(CMD_INTERRUPT));
#endif
// Jump to begin of RPS program (p37)
WRITE_RPS1(cpu_to_le32(CMD_JUMP));
WRITE_RPS1(cpu_to_le32(dev->d_rps1.dma_handle));
// Fix VSYNC level
saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTLO);
// Set RPS1 Address register to point to RPS code (r108 p42)
saa7146_write(dev, RPS_ADDR1, dev->d_rps1.dma_handle);
if (!(budget = kmalloc (sizeof(struct budget_patch), GFP_KERNEL)))
return -ENOMEM;
dprintk(2, "budget: %p\n", budget);
if ((err = ttpci_budget_init (budget, dev, info, THIS_MODULE))) {
kfree (budget);
return err;
}
// Set Source Line Counter Threshold, using BRS (rCC p43)
// It generates HS event every TS_HEIGHT lines
// this is related to TS_WIDTH set in register
// NUM_LINE_BYTE3 in budget-core.c. If NUM_LINE_BYTE
// low 16 bits are set to TS_WIDTH bytes (TS_WIDTH=2*188
//,then RPS_THRESH1
// should be set to trigger every TS_HEIGHT (512) lines.
//
saa7146_write(dev, RPS_THRESH1, budget->buffer_height | MASK_12 );
// saa7146_write(dev, RPS_THRESH0, ((TS_HEIGHT/2)<<16) |MASK_28| (TS_HEIGHT/2) |MASK_12 );
// Enable RPS1 (rFC p33)
saa7146_write(dev, MC1, (MASK_13 | MASK_29));
dev->ext_priv = budget;
budget->dvb_adapter.priv = budget;
frontend_init(budget);
return 0;
}
static int budget_patch_detach (struct saa7146_dev* dev)
{
struct budget_patch *budget = (struct budget_patch*) dev->ext_priv;
int err;
if (budget->dvb_frontend) dvb_unregister_frontend(budget->dvb_frontend);
err = ttpci_budget_deinit (budget);
kfree (budget);
return err;
}
static int __init budget_patch_init(void)
{
return saa7146_register_extension(&budget_extension);
}
static void __exit budget_patch_exit(void)
{
saa7146_unregister_extension(&budget_extension);
}
static struct saa7146_extension budget_extension = {
.name = "budget_patch dvb\0",
.flags = 0,
.module = THIS_MODULE,
.pci_tbl = pci_tbl,
.attach = budget_patch_attach,
.detach = budget_patch_detach,
.irq_mask = MASK_10,
.irq_func = ttpci_budget_irq10_handler,
};
module_init(budget_patch_init);
module_exit(budget_patch_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Emard, Roberto Deza, Holger Waechtler, Michael Hunold, others");
MODULE_DESCRIPTION("Driver for full TS modified DVB-S SAA7146+AV7110 "
"based so-called Budget Patch cards");
