| Line 65... |
Line 65... |
unsigned short dev_pio;
|
unsigned short dev_pio;
|
unsigned long sectors;
|
unsigned long sectors;
|
|
|
char txt[41];
|
char txt[41];
|
|
|
|
printf( "Checking device-id\n" );
|
/* check device-id (MINOR number) */
|
/* check device-id (MINOR number) */
|
if ( (device = DEVICE(inode)) > 1 )
|
if ( (device = DEVICE(inode)) > 1 )
|
return EOPENIDEV;
|
return EOPENIDEV;
|
|
|
|
printf( "Searching for hostcontroller: " );
|
/* get atahost id */
|
/* get atahost id */
|
atahost = ata_ioctl(inode, filp, ATA_IOCTL_IDENTIFY_HOST, 0);
|
atahost = ata_ioctl(inode, filp, ATA_IOCTL_IDENTIFY_HOST, 0);
|
if (atahost)
|
if (atahost)
|
{
|
{
|
printf( "OCIDEC-%1d, revision 0x%02X found at 0x%08lX.\n", TYPE(atahost), REV(atahost), BASE(inode) );
|
printf( "OCIDEC-%1d, revision 0x%02X found at 0x%08lX.\n", TYPE(atahost), REV(atahost), BASE(inode) );
|
| Line 85... |
Line 87... |
|
|
|
|
/* check if the host has been opened already */
|
/* check if the host has been opened already */
|
if (!usage[device]++)
|
if (!usage[device]++)
|
{
|
{
|
|
printf( "Opening device for the first time\n" );
|
/* no, take device out of reset */
|
/* no, take device out of reset */
|
ata_ioctl(inode, filp, ATA_IOCTL_SET_RST, CLR | ARG_HW_RST);
|
ata_ioctl(inode, filp, ATA_IOCTL_SET_RST, CLR | ARG_HW_RST);
|
|
ata_ioctl(inode, filp, ATA_IOCTL_SET_RST, CLR | ARG_SW_RST);
|
|
|
/* program PIO timing registers (set to PIO mode 0) */
|
/* program PIO timing registers (set to PIO mode 0) */
|
ata_ioctl(inode, filp, ATA_IOCTL_SET_PIO, ARG_PIO0);
|
ata_ioctl(inode, filp, ATA_IOCTL_SET_PIO, ARG_PIO0);
|
|
|
|
/* enable host controller (for old OCIDEC cores) */
|
|
ata_ioctl(inode, filp, ATA_IOCTL_ENABLE_HOST, 0);
|
}
|
}
|
|
|
/* select requested device */
|
/* select requested device */
|
ata_ioctl(inode, filp, ATA_IOCTL_SELECT_DEVICE, 0);
|
ata_ioctl(inode, filp, ATA_IOCTL_SELECT_DEVICE, 0);
|
|
|
|
printf( "Executing IdentifyDevice command\n" );
|
/* identify requested ata-devices */
|
/* identify requested ata-devices */
|
ata_ioctl(inode, filp, ATA_IOCTL_IDENTIFY_DEVICE, (unsigned long) buf);
|
ata_ioctl(inode, filp, ATA_IOCTL_EXEC_CMD, IDENTIFY_DEVICE);
|
|
|
|
/* read block from ata-device */
|
|
buf[0] = 256;
|
|
ata_ioctl(inode, filp, ATA_IOCTL_READ, (unsigned long) buf);
|
|
|
/* check if a valid device was found */
|
/* check if a valid device was found */
|
/* bit 15 in identify_device word0 must be '0',
|
/* bit 15 in identify_device word0 must be '0',
|
or be equal to 0x848a (CFA feature set) */
|
or be equal to 0x848a (CFA feature set) */
|
if ( (buf[0] & 0x8000) && (buf[0] != 0x848a) )
|
if ( (buf[0] & 0x8000) && (buf[0] != 0x848a) )
|
| Line 108... |
Line 120... |
ata_release(inode, filp);
|
ata_release(inode, filp);
|
return EOPENNODEV;
|
return EOPENNODEV;
|
}
|
}
|
|
|
/* Then check specific configuration word */
|
/* Then check specific configuration word */
|
|
if (buf[0] == 0x848a)
|
|
printf( "Found CompactFLASH device.\n" );
|
|
else
|
switch(buf[2]) {
|
switch(buf[2]) {
|
case 0x37c8:
|
case 0x37c8:
|
/* device does require SET_FEATURES
|
/* device does require SET_FEATURES
|
IDENTIFY_DEVICE response is incomplete */
|
IDENTIFY_DEVICE response is incomplete */
|
case 0x738c:
|
case 0x738c:
|
| Line 132... |
Line 147... |
return EOPENNODEV;
|
return EOPENNODEV;
|
}
|
}
|
|
|
/* checks ok */
|
/* checks ok */
|
|
|
/* extract data from device */
|
|
printf( "Device%1d: ", device);
|
|
|
|
/* display device model, serialnumber, and firmware revision */
|
/* display device model, serialnumber, and firmware revision */
|
memcpy(txt, &buf[27], 40);
|
memcpy(txt, &buf[27], 40);
|
txt[40] = '\0';
|
txt[40] = '\0';
|
printf( "%s ", txt );
|
printf( "Model : %s\n", txt );
|
|
|
memcpy(txt, &buf[10], 20);
|
memcpy(txt, &buf[10], 20);
|
txt[20] = '\0';
|
txt[20] = '\0';
|
printf( "%s ", txt );
|
printf( "Serial : %s\n", txt );
|
|
|
memcpy( txt, &buf[23], 8);
|
memcpy( txt, &buf[23], 8);
|
txt[8] = '\0';
|
txt[8] = '\0';
|
printf( "%s\n", txt );
|
printf( "Firmware rev: %s\n", txt );
|
|
|
/* display size in MBytes */
|
/* display size in MBytes */
|
sectors = (buf[61] << 16) | buf[60];
|
sectors = (buf[61] << 16) | buf[60];
|
printf( " %ld MBytes ", sectors >> 11 ); /* assuming 512bytes per sector */
|
printf( " %ld MBytes ", sectors >> 11 ); /* assuming 512bytes per sector */
|
|
|
| Line 194... |
Line 206... |
|
|
return 0;
|
return 0;
|
}
|
}
|
|
|
|
|
|
/*
|
|
A T A _ R E A D _ D P O R T
|
|
|
|
closes ata device;
|
|
*/
|
|
int ata_read_dport(unsigned long base)
|
|
{
|
|
/* device ready to transfer data ?? */
|
|
while ( !ata_dev_datrdy(base) );
|
|
|
|
return REG32(base + ATA_DR);
|
|
}
|
|
|
|
|
/*
|
/*
|
A T A _ I O C T L
|
A T A _ I O C T L
|
*/
|
*/
|
int ata_ioctl(struct inode *inode, struct file *filp, unsigned command, unsigned long argument)
|
int ata_ioctl(struct inode *inode, struct file *filp, unsigned command, unsigned long argument)
|
{
|
{
|
unsigned long base = BASE(inode);
|
unsigned long base = BASE(inode);
|
|
|
switch (command)
|
switch (command)
|
{
|
{
|
case ATA_IOCTL_IDENTIFY_DEVICE:
|
case ATA_IOCTL_ENABLE_HOST:
|
/* Reads the identify_device block */
|
/* enables the ATA host controller (sets IDE_EN bit) */
|
{
|
{
|
int i;
|
REG32(base + ATA_CTRL) |= ATA_IDE_EN;
|
unsigned short *buf_ptr = (short *)argument;
|
return 0;
|
|
}
|
|
|
|
|
|
case ATA_IOCTL_EXEC_CMD:
|
|
/* sends a command to the ATA device */
|
|
{
|
|
while( ata_dev_busy(base) ); // wait for device ready
|
|
ata_cmd(base) = argument & 0xff;
|
|
return 0;
|
|
}
|
|
|
/* send 'identify_device' command */
|
|
REG32(base + ATA_CR) = IDENTIFY_DEVICE;
|
|
|
|
/* read data from devices and store it in buffer */
|
case ATA_IOCTL_READ:
|
for (i=0; i < 256; i++)
|
{
|
*buf_ptr++ = REG32(base + ATA_DR);
|
unsigned short *buf_ptr = (short *)argument;
|
|
int n, cnt;
|
|
|
|
cnt = buf_ptr[0];
|
|
for (n=0; n < cnt; n++)
|
|
{
|
|
while( !ata_dev_datrdy(base) ); // wait for data
|
|
*buf_ptr++ = ata_read_dport(base); // read data
|
|
}
|
|
|
return 0;
|
return 0;
|
}
|
}
|
|
|
|
|
| Line 227... |
Line 268... |
/* reads OCIDEC status register configuration bits */
|
/* reads OCIDEC status register configuration bits */
|
return (REG32(base + ATA_STAT) >> 24);
|
return (REG32(base + ATA_STAT) >> 24);
|
|
|
|
|
case ATA_IOCTL_SELECT_DEVICE:
|
case ATA_IOCTL_SELECT_DEVICE:
|
/* selects ATA device
|
/* selects ATA device */
|
sets the DEV bit in the device/head register */
|
{
|
|
while( ata_dev_busy(base) ); // wait for device ready
|
|
|
|
/* sets the DEV bit in the device/head register */
|
if ( DEVICE(inode) )
|
if ( DEVICE(inode) )
|
REG32(base + ATA_DHR) |= ATA_DHR_DEV; /* select device1 */
|
REG32(base + ATA_DHR) |= ATA_DHR_DEV; /* select device1 */
|
else
|
else
|
REG32(base + ATA_DHR) &= ~ATA_DHR_DEV; /* select device0 */
|
REG32(base + ATA_DHR) &= ~ATA_DHR_DEV; /* select device0 */
|
|
|
return 0;
|
return 0;
|
|
}
|
|
|
|
|
case ATA_IOCTL_SET_FTE:
|
case ATA_IOCTL_SET_FTE:
|
|
{
|
/* set FTE bits */
|
/* set FTE bits */
|
if ( MINOR(inode->i_rdev) )
|
if ( MINOR(inode->i_rdev) )
|
if (argument)
|
if (argument)
|
REG32(base + ATA_CTRL) |= ATA_IORDY_FTE0;
|
REG32(base + ATA_CTRL) |= ATA_IORDY_FTE0;
|
else
|
else
|
| Line 251... |
Line 297... |
REG32(base + ATA_CTRL) |= ATA_IORDY_FTE1;
|
REG32(base + ATA_CTRL) |= ATA_IORDY_FTE1;
|
else
|
else
|
REG32(base + ATA_CTRL) &= ~ATA_IORDY_FTE1;
|
REG32(base + ATA_CTRL) &= ~ATA_IORDY_FTE1;
|
|
|
return 0;
|
return 0;
|
|
}
|
|
|
|
|
case ATA_IOCTL_SET_PIO:
|
case ATA_IOCTL_SET_PIO:
|
/* programs the PIO timing registers */
|
/* programs the PIO timing registers */
|
{
|
{
|
unsigned long timing;
|
unsigned long timing;
|
unsigned short buf[256];
|
unsigned short buf[256];
|
|
|
/* do we need to read the identify_device block ?? */
|
/* do we need to read the identify_device block ?? */
|
if (argument & (ARG_PIO4 | ARG_PIO3) )
|
if (argument & (ARG_PIO4 | ARG_PIO3) )
|
ata_ioctl(inode, filp, ATA_IOCTL_IDENTIFY_DEVICE, (unsigned long) buf);
|
{
|
|
/* identify requested ata-devices */
|
|
ata_ioctl(inode, filp, ATA_IOCTL_EXEC_CMD, IDENTIFY_DEVICE);
|
|
|
|
/* read block from ata-device */
|
|
buf[0] = 256;
|
|
ata_ioctl(inode, filp, ATA_IOCTL_READ, (unsigned long) buf);
|
|
}
|
|
|
/* program register transfer timing registers */
|
/* program register transfer timing registers */
|
/* set the slowest pio mode for register transfers */
|
/* set the slowest pio mode for register transfers */
|
if (argument < current_pio_mode)
|
if (argument < current_pio_mode)
|
{
|
{
|
| Line 410... |
Line 464... |
}
|
}
|
}
|
}
|
|
|
|
|
default:
|
default:
|
printf( "FIXME: Unsupported IOCTL call\n" );
|
printf( "FIXME: Unsupported IOCTL call %1d\n", command );
|
return EINVAL;
|
return EINVAL;
|
}
|
}
|
}
|
}
|
|
|
|
|
| Line 486... |
Line 540... |
buf_ptr = request->buffer;
|
buf_ptr = request->buffer;
|
|
|
for (n=0; n < request->nr_sectors; n++)
|
for (n=0; n < request->nr_sectors; n++)
|
for (i=0; i < sector_size; i++)
|
for (i=0; i < sector_size; i++)
|
{
|
{
|
rd_data = REG32(base + ATA_DR);
|
rd_data = ata_read_dport(base);
|
|
|
/* the data is byte reversed, swap high & low bytes */
|
/* the data is byte reversed, swap high & low bytes */
|
*buf_ptr++ = rd_data;
|
*buf_ptr++ = rd_data;
|
*buf_ptr++ = rd_data >> 8;
|
*buf_ptr++ = rd_data >> 8;
|
}
|
}
|
