mirror of
https://github.com/tbsdtv/linux_media.git
synced 2025-07-23 04:33:26 +02:00
101 lines
2.4 KiB
C
101 lines
2.4 KiB
C
#include "tbs_pcie.h"
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#include "tbs_pcie-reg.h"
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u8 sdi_CheckFree(struct tbs_pcie_dev *dev,int sdi_base_addr, unsigned char OpbyteNum)
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{
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unsigned char tmpbuf[4];
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int i;
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int j=500;
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if(OpbyteNum==2)
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j=400;
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else if(OpbyteNum==1)
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j=200;
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//pauseThread(OpbyteNum+1);
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tmpbuf[0] = 0;
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for(i=0;(i<j) && (tmpbuf[0] != 1);i++)
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{
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*(u32 *)tmpbuf = TBS_PCIE_READ(sdi_base_addr, ASI_STATUS );
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}
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//return (tmpbuf[0] == 1);
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if(tmpbuf[0] == 1)
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return true;
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else
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{
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printk("----------sdi spi interface check error! %x\n",tmpbuf[0]);
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return false;
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}
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}
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bool sdi_chip_reset(struct tbs_pcie_dev *dev,int sdi_base_addr)
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{
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unsigned char tmpbuf[4];
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tmpbuf[0] = 0;
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TBS_PCIE_WRITE( sdi_base_addr, ASI_CHIP_RST, *(u32 *)&tmpbuf[0]);
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msleep(20);
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tmpbuf[0] = 1;
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TBS_PCIE_WRITE( sdi_base_addr, ASI_CHIP_RST, *(u32 *)&tmpbuf[0]);
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msleep(100);
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return true ;
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}
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int sdi_read16bit(struct tbs_pcie_dev *dev,int sdi_base_addr,int reg_addr)
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{
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unsigned char tmpbuf[4];
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int regData;
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tmpbuf[0] = (unsigned char) (reg_addr>>8)&0xff; //read_address, msb first;
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tmpbuf[1] = (unsigned char)(reg_addr&0xff);
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tmpbuf[0] += 0x80; //read data;
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TBS_PCIE_WRITE( sdi_base_addr, ASI_SPI_CMD, *(u32 *)&tmpbuf[0]);
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tmpbuf[0] = 0xf0; //cs low,cs high, write, read;
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tmpbuf[1] = 0x20; // 2 bytes command for writing;
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tmpbuf[1] += 0x02; //read 2 bytes data;
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TBS_PCIE_WRITE( sdi_base_addr, ASI_SPI_CONFIG, *(u32 *)&tmpbuf[0]);
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if(sdi_CheckFree(dev,sdi_base_addr,2)== false)
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{
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printk(" spi_read16bit error!\n");
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return false;
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}
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*(u32 *)tmpbuf = TBS_PCIE_READ(sdi_base_addr, ASI_SPI_RD_32 );
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regData = ((tmpbuf[0]<<8) | tmpbuf[1]);
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return regData;
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}
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bool sdi_write16bit(struct tbs_pcie_dev *dev,int sdi_base_addr, int reg_addr, int data16bit)
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{
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unsigned char tmpbuf[4];
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int regData;
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tmpbuf[0] = (unsigned char) (reg_addr>>8)&0xff; //read_address, msb first;
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tmpbuf[1] = (unsigned char)(reg_addr&0xff);
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tmpbuf[2] = (unsigned char) (data16bit>>8)&0xff; //read_address, msb first;
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tmpbuf[3] = (unsigned char)(data16bit&0xff);
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TBS_PCIE_WRITE( sdi_base_addr, ASI_SPI_CMD, *(u32 *)&tmpbuf[0]);
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tmpbuf[0] = 0xe0; //cs low,cs high, write, no read;
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tmpbuf[1] = 0x40; // 4 bytes command for writing;
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TBS_PCIE_WRITE( sdi_base_addr, ASI_SPI_CONFIG, *(u32 *)&tmpbuf[0]);
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if(sdi_CheckFree(dev,sdi_base_addr,2)== false)
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{
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printk(" spi_write16bit error!\n");
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return false;
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}
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return true ;
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}
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