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754 lines
24 KiB
754 lines
24 KiB
/*
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* budget-patch.c: driver for Budget Patch,
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* hardware modification of DVB-S cards enabling full TS
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*
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* Written by Emard <emard@softhome.net>
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*
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* Original idea by Roberto Deza <rdeza@unav.es>
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*
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* Special thanks to Holger Waechtler, Michael Hunold, Marian Durkovic
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* and Metzlerbros
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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* Or, point your browser to http://www.gnu.org/copyleft/gpl.html
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*
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*
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* the project's page is at http://www.linuxtv.org/dvb/
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*/
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#include "av7110.h"
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#include "av7110_hw.h"
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#include "budget.h"
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#include "stv0299.h"
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#include "ves1x93.h"
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#include "tda8083.h"
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#define budget_patch budget
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static struct saa7146_extension budget_extension;
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MAKE_BUDGET_INFO(ttbp, "TT-Budget/Patch DVB-S 1.x PCI", BUDGET_PATCH);
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//MAKE_BUDGET_INFO(satel,"TT-Budget/Patch SATELCO PCI", BUDGET_TT_HW_DISEQC);
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static struct pci_device_id pci_tbl[] = {
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MAKE_EXTENSION_PCI(ttbp,0x13c2, 0x0000),
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// MAKE_EXTENSION_PCI(satel, 0x13c2, 0x1013),
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{
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.vendor = 0,
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}
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};
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/* those lines are for budget-patch to be tried
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** on a true budget card and observe the
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** behaviour of VSYNC generated by rps1.
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** this code was shamelessly copy/pasted from budget.c
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*/
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static void gpio_Set22K (struct budget *budget, int state)
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{
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struct saa7146_dev *dev=budget->dev;
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dprintk(2, "budget: %p\n", budget);
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saa7146_setgpio(dev, 3, (state ? SAA7146_GPIO_OUTHI : SAA7146_GPIO_OUTLO));
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}
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/* Diseqc functions only for TT Budget card */
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/* taken from the Skyvision DVB driver by
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Ralph Metzler <rjkm@metzlerbros.de> */
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static void DiseqcSendBit (struct budget *budget, int data)
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{
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struct saa7146_dev *dev=budget->dev;
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dprintk(2, "budget: %p\n", budget);
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saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTHI);
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udelay(data ? 500 : 1000);
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saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTLO);
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udelay(data ? 1000 : 500);
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}
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static void DiseqcSendByte (struct budget *budget, int data)
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{
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int i, par=1, d;
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dprintk(2, "budget: %p\n", budget);
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for (i=7; i>=0; i--) {
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d = (data>>i)&1;
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par ^= d;
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DiseqcSendBit(budget, d);
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}
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DiseqcSendBit(budget, par);
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}
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static int SendDiSEqCMsg (struct budget *budget, int len, u8 *msg, unsigned long burst)
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{
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struct saa7146_dev *dev=budget->dev;
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int i;
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dprintk(2, "budget: %p\n", budget);
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saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTLO);
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mdelay(16);
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for (i=0; i<len; i++)
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DiseqcSendByte(budget, msg[i]);
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mdelay(16);
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if (burst!=-1) {
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if (burst)
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DiseqcSendByte(budget, 0xff);
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else {
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saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTHI);
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udelay(12500);
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saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTLO);
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}
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msleep(20);
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}
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return 0;
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}
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/* shamelessly copy/pasted from budget.c
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*/
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static int budget_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
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{
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struct budget* budget = (struct budget*) fe->dvb->priv;
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switch (tone) {
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case SEC_TONE_ON:
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gpio_Set22K (budget, 1);
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break;
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case SEC_TONE_OFF:
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gpio_Set22K (budget, 0);
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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static int budget_diseqc_send_master_cmd(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd* cmd)
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{
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struct budget* budget = (struct budget*) fe->dvb->priv;
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SendDiSEqCMsg (budget, cmd->msg_len, cmd->msg, 0);
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return 0;
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}
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static int budget_diseqc_send_burst(struct dvb_frontend* fe, fe_sec_mini_cmd_t minicmd)
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{
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struct budget* budget = (struct budget*) fe->dvb->priv;
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SendDiSEqCMsg (budget, 0, NULL, minicmd);
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return 0;
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}
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static int budget_av7110_send_fw_cmd(struct budget_patch *budget, u16* buf, int length)
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{
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int i;
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dprintk(2, "budget: %p\n", budget);
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for (i = 2; i < length; i++)
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{
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ttpci_budget_debiwrite(budget, DEBINOSWAP, COMMAND + 2*i, 2, (u32) buf[i], 0,0);
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msleep(5);
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}
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if (length)
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ttpci_budget_debiwrite(budget, DEBINOSWAP, COMMAND + 2, 2, (u32) buf[1], 0,0);
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else
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ttpci_budget_debiwrite(budget, DEBINOSWAP, COMMAND + 2, 2, 0, 0,0);
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msleep(5);
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ttpci_budget_debiwrite(budget, DEBINOSWAP, COMMAND, 2, (u32) buf[0], 0,0);
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msleep(5);
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return 0;
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}
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static void av7110_set22k(struct budget_patch *budget, int state)
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{
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u16 buf[2] = {( COMTYPE_AUDIODAC << 8) | (state ? ON22K : OFF22K), 0};
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dprintk(2, "budget: %p\n", budget);
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budget_av7110_send_fw_cmd(budget, buf, 2);
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}
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static int av7110_send_diseqc_msg(struct budget_patch *budget, int len, u8 *msg, int burst)
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{
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int i;
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u16 buf[18] = { ((COMTYPE_AUDIODAC << 8) | SendDiSEqC),
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16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
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dprintk(2, "budget: %p\n", budget);
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if (len>10)
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len=10;
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buf[1] = len+2;
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buf[2] = len;
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if (burst != -1)
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buf[3]=burst ? 0x01 : 0x00;
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else
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buf[3]=0xffff;
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for (i=0; i<len; i++)
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buf[i+4]=msg[i];
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budget_av7110_send_fw_cmd(budget, buf, 18);
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return 0;
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}
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static int budget_patch_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
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{
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struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;
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switch (tone) {
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case SEC_TONE_ON:
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av7110_set22k (budget, 1);
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break;
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case SEC_TONE_OFF:
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av7110_set22k (budget, 0);
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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static int budget_patch_diseqc_send_master_cmd(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd* cmd)
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{
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struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;
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av7110_send_diseqc_msg (budget, cmd->msg_len, cmd->msg, 0);
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return 0;
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}
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static int budget_patch_diseqc_send_burst(struct dvb_frontend* fe, fe_sec_mini_cmd_t minicmd)
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{
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struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;
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av7110_send_diseqc_msg (budget, 0, NULL, minicmd);
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return 0;
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}
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static int alps_bsrv2_pll_set(struct dvb_frontend* fe, struct dvb_frontend_parameters* params)
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{
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struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;
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u8 pwr = 0;
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u8 buf[4];
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struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = buf, .len = sizeof(buf) };
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u32 div = (params->frequency + 479500) / 125;
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if (params->frequency > 2000000) pwr = 3;
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else if (params->frequency > 1800000) pwr = 2;
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else if (params->frequency > 1600000) pwr = 1;
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else if (params->frequency > 1200000) pwr = 0;
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else if (params->frequency >= 1100000) pwr = 1;
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else pwr = 2;
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buf[0] = (div >> 8) & 0x7f;
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buf[1] = div & 0xff;
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buf[2] = ((div & 0x18000) >> 10) | 0x95;
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buf[3] = (pwr << 6) | 0x30;
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// NOTE: since we're using a prescaler of 2, we set the
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// divisor frequency to 62.5kHz and divide by 125 above
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if (i2c_transfer (&budget->i2c_adap, &msg, 1) != 1) return -EIO;
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return 0;
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}
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static struct ves1x93_config alps_bsrv2_config = {
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.demod_address = 0x08,
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.xin = 90100000UL,
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.invert_pwm = 0,
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.pll_set = alps_bsrv2_pll_set,
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};
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static u8 alps_bsru6_inittab[] = {
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0x01, 0x15,
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0x02, 0x00,
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0x03, 0x00,
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0x04, 0x7d, /* F22FR = 0x7d, F22 = f_VCO / 128 / 0x7d = 22 kHz */
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0x05, 0x35, /* I2CT = 0, SCLT = 1, SDAT = 1 */
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0x06, 0x40, /* DAC not used, set to high impendance mode */
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0x07, 0x00, /* DAC LSB */
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0x08, 0x40, /* DiSEqC off, LNB power on OP2/LOCK pin on */
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0x09, 0x00, /* FIFO */
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0x0c, 0x51, /* OP1 ctl = Normal, OP1 val = 1 (LNB Power ON) */
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0x0d, 0x82, /* DC offset compensation = ON, beta_agc1 = 2 */
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0x0e, 0x23, /* alpha_tmg = 2, beta_tmg = 3 */
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0x10, 0x3f, // AGC2 0x3d
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0x11, 0x84,
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0x12, 0xb5, // Lock detect: -64 Carrier freq detect:on
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0x15, 0xc9, // lock detector threshold
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0x16, 0x00,
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0x17, 0x00,
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0x18, 0x00,
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0x19, 0x00,
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0x1a, 0x00,
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0x1f, 0x50,
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0x20, 0x00,
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0x21, 0x00,
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0x22, 0x00,
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0x23, 0x00,
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0x28, 0x00, // out imp: normal out type: parallel FEC mode:0
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0x29, 0x1e, // 1/2 threshold
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0x2a, 0x14, // 2/3 threshold
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0x2b, 0x0f, // 3/4 threshold
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0x2c, 0x09, // 5/6 threshold
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0x2d, 0x05, // 7/8 threshold
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0x2e, 0x01,
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0x31, 0x1f, // test all FECs
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0x32, 0x19, // viterbi and synchro search
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0x33, 0xfc, // rs control
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0x34, 0x93, // error control
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0x0f, 0x52,
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0xff, 0xff
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};
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static int alps_bsru6_set_symbol_rate(struct dvb_frontend* fe, u32 srate, u32 ratio)
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{
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u8 aclk = 0;
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u8 bclk = 0;
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if (srate < 1500000) { aclk = 0xb7; bclk = 0x47; }
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else if (srate < 3000000) { aclk = 0xb7; bclk = 0x4b; }
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else if (srate < 7000000) { aclk = 0xb7; bclk = 0x4f; }
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else if (srate < 14000000) { aclk = 0xb7; bclk = 0x53; }
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else if (srate < 30000000) { aclk = 0xb6; bclk = 0x53; }
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else if (srate < 45000000) { aclk = 0xb4; bclk = 0x51; }
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stv0299_writereg (fe, 0x13, aclk);
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stv0299_writereg (fe, 0x14, bclk);
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stv0299_writereg (fe, 0x1f, (ratio >> 16) & 0xff);
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stv0299_writereg (fe, 0x20, (ratio >> 8) & 0xff);
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stv0299_writereg (fe, 0x21, (ratio ) & 0xf0);
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return 0;
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}
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static int alps_bsru6_pll_set(struct dvb_frontend* fe, struct dvb_frontend_parameters* params)
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{
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struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;
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u8 data[4];
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u32 div;
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struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = data, .len = sizeof(data) };
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if ((params->frequency < 950000) || (params->frequency > 2150000)) return -EINVAL;
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div = (params->frequency + (125 - 1)) / 125; // round correctly
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data[0] = (div >> 8) & 0x7f;
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data[1] = div & 0xff;
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data[2] = 0x80 | ((div & 0x18000) >> 10) | 4;
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data[3] = 0xC4;
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if (params->frequency > 1530000) data[3] = 0xc0;
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if (i2c_transfer (&budget->i2c_adap, &msg, 1) != 1) return -EIO;
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return 0;
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}
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static struct stv0299_config alps_bsru6_config = {
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.demod_address = 0x68,
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.inittab = alps_bsru6_inittab,
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.mclk = 88000000UL,
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.invert = 1,
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.enhanced_tuning = 0,
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.skip_reinit = 0,
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.lock_output = STV0229_LOCKOUTPUT_1,
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.volt13_op0_op1 = STV0299_VOLT13_OP1,
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.min_delay_ms = 100,
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.set_symbol_rate = alps_bsru6_set_symbol_rate,
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.pll_set = alps_bsru6_pll_set,
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};
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static int grundig_29504_451_pll_set(struct dvb_frontend* fe, struct dvb_frontend_parameters* params)
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{
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struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;
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u32 div;
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u8 data[4];
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struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = data, .len = sizeof(data) };
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div = params->frequency / 125;
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data[0] = (div >> 8) & 0x7f;
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data[1] = div & 0xff;
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data[2] = 0x8e;
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data[3] = 0x00;
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if (i2c_transfer (&budget->i2c_adap, &msg, 1) != 1) return -EIO;
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return 0;
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}
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static struct tda8083_config grundig_29504_451_config = {
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.demod_address = 0x68,
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.pll_set = grundig_29504_451_pll_set,
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};
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static void frontend_init(struct budget_patch* budget)
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{
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switch(budget->dev->pci->subsystem_device) {
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case 0x0000: // Hauppauge/TT WinTV DVB-S rev1.X
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case 0x1013: // SATELCO Multimedia PCI
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// try the ALPS BSRV2 first of all
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budget->dvb_frontend = ves1x93_attach(&alps_bsrv2_config, &budget->i2c_adap);
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if (budget->dvb_frontend) {
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budget->dvb_frontend->ops->diseqc_send_master_cmd = budget_patch_diseqc_send_master_cmd;
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budget->dvb_frontend->ops->diseqc_send_burst = budget_patch_diseqc_send_burst;
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budget->dvb_frontend->ops->set_tone = budget_patch_set_tone;
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break;
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}
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// try the ALPS BSRU6 now
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budget->dvb_frontend = stv0299_attach(&alps_bsru6_config, &budget->i2c_adap);
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if (budget->dvb_frontend) {
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budget->dvb_frontend->ops->diseqc_send_master_cmd = budget_diseqc_send_master_cmd;
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budget->dvb_frontend->ops->diseqc_send_burst = budget_diseqc_send_burst;
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budget->dvb_frontend->ops->set_tone = budget_set_tone;
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break;
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}
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// Try the grundig 29504-451
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budget->dvb_frontend = tda8083_attach(&grundig_29504_451_config, &budget->i2c_adap);
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if (budget->dvb_frontend) {
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budget->dvb_frontend->ops->diseqc_send_master_cmd = budget_diseqc_send_master_cmd;
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budget->dvb_frontend->ops->diseqc_send_burst = budget_diseqc_send_burst;
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budget->dvb_frontend->ops->set_tone = budget_set_tone;
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break;
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}
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break;
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}
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if (budget->dvb_frontend == NULL) {
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printk("dvb-ttpci: A frontend driver was not found for device %04x/%04x subsystem %04x/%04x\n",
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budget->dev->pci->vendor,
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budget->dev->pci->device,
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budget->dev->pci->subsystem_vendor,
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|
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);
|
|
// 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, (TS_HEIGHT*1) | 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));
|
|
|
|
|
|
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;
|
|
}
|
|
|
|
|
|
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");
|
|
|