Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-10 23:24:38 +00:00
Code Issues Projects Releases Packages Wiki Activity
u-boot/cmd/scsi.c
Tom Rini ba52426975 cmd: scsi: Group the command portion together, guard with !CONFIG_SPL_BUILD 
When we switch to including all linker lists in SPL it is important
to not include commands as that may lead to link errors due to other
things we have already discarded.  In this case, the SCSI code needs a lot
of attention so for now just guard the command portions.

Signed-off-by: Tom Rini <trini@konsulko.com>
2016-03-16 15:03:37 -04:00

734 lines
21 KiB
C
Raw Blame History

/*
* (C) Copyright 2001
* Denis Peter, MPL AG Switzerland
*
* SPDX-License-Identifier: GPL-2.0+
*/
/*
* SCSI support.
*/
#include <common.h>
#include <command.h>
#include <inttypes.h>
#include <asm/processor.h>
#include <scsi.h>
#include <image.h>
#include <pci.h>
#ifdef CONFIG_SCSI_DEV_LIST
#define SCSI_DEV_LIST CONFIG_SCSI_DEV_LIST
#else
#ifdef CONFIG_SCSI_SYM53C8XX
#define SCSI_VEND_ID 0x1000
#ifndef CONFIG_SCSI_DEV_ID
#define SCSI_DEV_ID 0x0001
#else
#define SCSI_DEV_ID CONFIG_SCSI_DEV_ID
#endif
#elif defined CONFIG_SATA_ULI5288
#define SCSI_VEND_ID 0x10b9
#define SCSI_DEV_ID 0x5288
#elif !defined(CONFIG_SCSI_AHCI_PLAT)
#error no scsi device defined
#endif
#define SCSI_DEV_LIST {SCSI_VEND_ID, SCSI_DEV_ID}
#endif
#if defined(CONFIG_PCI) && !defined(CONFIG_SCSI_AHCI_PLAT)
const struct pci_device_id scsi_device_list[] = { SCSI_DEV_LIST };
#endif
static ccb tempccb; /* temporary scsi command buffer */
static unsigned char tempbuff[512]; /* temporary data buffer */
static int scsi_max_devs; /* number of highest available scsi device */
static int scsi_curr_dev; /* current device */
static struct blk_desc scsi_dev_desc[CONFIG_SYS_SCSI_MAX_DEVICE];
/********************************************************************************
* forward declerations of some Setup Routines
*/
void scsi_setup_test_unit_ready(ccb * pccb);
void scsi_setup_read6(ccb * pccb, lbaint_t start, unsigned short blocks);
void scsi_setup_read_ext(ccb * pccb, lbaint_t start, unsigned short blocks);
void scsi_setup_read16(ccb * pccb, lbaint_t start, unsigned long blocks);
static void scsi_setup_write_ext(ccb *pccb, lbaint_t start,
unsigned short blocks);
void scsi_setup_inquiry(ccb * pccb);
void scsi_ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len);
static int scsi_read_capacity(ccb *pccb, lbaint_t *capacity,
unsigned long *blksz);
static ulong scsi_read(struct blk_desc *block_dev, lbaint_t blknr,
lbaint_t blkcnt, void *buffer);
static ulong scsi_write(struct blk_desc *block_dev, lbaint_t blknr,
lbaint_t blkcnt, const void *buffer);
/*********************************************************************************
* (re)-scan the scsi bus and reports scsi device info
* to the user if mode = 1
*/
void scsi_scan(int mode)
{
unsigned char i,perq,modi,lun;
lbaint_t capacity;
unsigned long blksz;
ccb* pccb=(ccb *)&tempccb;
if(mode==1) {
printf("scanning bus for devices...\n");
}
for(i=0;i<CONFIG_SYS_SCSI_MAX_DEVICE;i++) {
scsi_dev_desc[i].target=0xff;
scsi_dev_desc[i].lun=0xff;
scsi_dev_desc[i].lba=0;
scsi_dev_desc[i].blksz=0;
scsi_dev_desc[i].log2blksz =
LOG2_INVALID(typeof(scsi_dev_desc[i].log2blksz));
scsi_dev_desc[i].type=DEV_TYPE_UNKNOWN;
scsi_dev_desc[i].vendor[0]=0;
scsi_dev_desc[i].product[0]=0;
scsi_dev_desc[i].revision[0]=0;
scsi_dev_desc[i].removable = false;
scsi_dev_desc[i].if_type=IF_TYPE_SCSI;
scsi_dev_desc[i].devnum = i;
scsi_dev_desc[i].part_type=PART_TYPE_UNKNOWN;
scsi_dev_desc[i].block_read=scsi_read;
scsi_dev_desc[i].block_write = scsi_write;
}
scsi_max_devs=0;
for(i=0;i<CONFIG_SYS_SCSI_MAX_SCSI_ID;i++) {
pccb->target=i;
for(lun=0;lun<CONFIG_SYS_SCSI_MAX_LUN;lun++) {
pccb->lun=lun;
pccb->pdata=(unsigned char *)&tempbuff;
pccb->datalen=512;
scsi_setup_inquiry(pccb);
if (scsi_exec(pccb) != true) {
if(pccb->contr_stat==SCSI_SEL_TIME_OUT) {
debug ("Selection timeout ID %d\n",pccb->target);
continue; /* selection timeout => assuming no device present */
}
scsi_print_error(pccb);
continue;
}
perq=tempbuff[0];
modi=tempbuff[1];
if((perq & 0x1f)==0x1f) {
continue; /* skip unknown devices */
}
if((modi&0x80)==0x80) /* drive is removable */
scsi_dev_desc[scsi_max_devs].removable=true;
/* get info for this device */
scsi_ident_cpy((unsigned char *)&scsi_dev_desc[scsi_max_devs].vendor[0],
&tempbuff[8], 8);
scsi_ident_cpy((unsigned char *)&scsi_dev_desc[scsi_max_devs].product[0],
&tempbuff[16], 16);
scsi_ident_cpy((unsigned char *)&scsi_dev_desc[scsi_max_devs].revision[0],
&tempbuff[32], 4);
scsi_dev_desc[scsi_max_devs].target=pccb->target;
scsi_dev_desc[scsi_max_devs].lun=pccb->lun;
pccb->datalen=0;
scsi_setup_test_unit_ready(pccb);
if (scsi_exec(pccb) != true) {
if (scsi_dev_desc[scsi_max_devs].removable == true) {
scsi_dev_desc[scsi_max_devs].type=perq;
goto removable;
}
scsi_print_error(pccb);
continue;
}
if (scsi_read_capacity(pccb, &capacity, &blksz)) {
scsi_print_error(pccb);
continue;
}
scsi_dev_desc[scsi_max_devs].lba=capacity;
scsi_dev_desc[scsi_max_devs].blksz=blksz;
scsi_dev_desc[scsi_max_devs].log2blksz =
LOG2(scsi_dev_desc[scsi_max_devs].blksz);
scsi_dev_desc[scsi_max_devs].type=perq;
part_init(&scsi_dev_desc[scsi_max_devs]);
removable:
if(mode==1) {
printf (" Device %d: ", scsi_max_devs);
dev_print(&scsi_dev_desc[scsi_max_devs]);
} /* if mode */
scsi_max_devs++;
} /* next LUN */
}
if(scsi_max_devs>0)
scsi_curr_dev=0;
else
scsi_curr_dev = -1;
printf("Found %d device(s).\n", scsi_max_devs);
#ifndef CONFIG_SPL_BUILD
setenv_ulong("scsidevs", scsi_max_devs);
#endif
}
int scsi_get_disk_count(void)
{
return scsi_max_devs;
}
#if defined(CONFIG_PCI) && !defined(CONFIG_SCSI_AHCI_PLAT)
void scsi_init(void)
{
int busdevfunc = -1;
int i;
/*
* Find a device from the list, this driver will support a single
* controller.
*/
for (i = 0; i < ARRAY_SIZE(scsi_device_list); i++) {
/* get PCI Device ID */
#ifdef CONFIG_DM_PCI
struct udevice *dev;
int ret;
ret = dm_pci_find_device(scsi_device_list[i].vendor,
scsi_device_list[i].device, 0, &dev);
if (!ret) {
busdevfunc = dm_pci_get_bdf(dev);
break;
}
#else
busdevfunc = pci_find_device(scsi_device_list[i].vendor,
scsi_device_list[i].device,
0);
#endif
if (busdevfunc != -1)
break;
}
if (busdevfunc == -1) {
printf("Error: SCSI Controller(s) ");
for (i = 0; i < ARRAY_SIZE(scsi_device_list); i++) {
printf("%04X:%04X ",
scsi_device_list[i].vendor,
scsi_device_list[i].device);
}
printf("not found\n");
return;
}
#ifdef DEBUG
else {
printf("SCSI Controller (%04X,%04X) found (%d:%d:%d)\n",
scsi_device_list[i].vendor,
scsi_device_list[i].device,
(busdevfunc >> 16) & 0xFF,
(busdevfunc >> 11) & 0x1F,
(busdevfunc >> 8) & 0x7);
}
#endif
bootstage_start(BOOTSTAGE_ID_ACCUM_SCSI, "ahci");
scsi_low_level_init(busdevfunc);
scsi_scan(1);
bootstage_accum(BOOTSTAGE_ID_ACCUM_SCSI);
}
#endif
#ifdef CONFIG_PARTITIONS
struct blk_desc *scsi_get_dev(int dev)
{
return (dev < CONFIG_SYS_SCSI_MAX_DEVICE) ? &scsi_dev_desc[dev] : NULL;
}
#endif
#ifndef CONFIG_SPL_BUILD
/******************************************************************************
* scsi boot command intepreter. Derived from diskboot
*/
int do_scsiboot (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
return common_diskboot(cmdtp, "scsi", argc, argv);
}
/*********************************************************************************
* scsi command intepreter
*/
int do_scsi (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
switch (argc) {
case 0:
case 1:
return CMD_RET_USAGE;
case 2:
if (strncmp(argv[1],"res",3) == 0) {
printf("\nReset SCSI\n");
scsi_bus_reset();
scsi_scan(1);
return 0;
}
if (strncmp(argv[1],"inf",3) == 0) {
int i;
for (i=0; i<CONFIG_SYS_SCSI_MAX_DEVICE; ++i) {
if(scsi_dev_desc[i].type==DEV_TYPE_UNKNOWN)
continue; /* list only known devices */
printf ("SCSI dev. %d: ", i);
dev_print(&scsi_dev_desc[i]);
}
return 0;
}
if (strncmp(argv[1],"dev",3) == 0) {
if ((scsi_curr_dev < 0) || (scsi_curr_dev >= CONFIG_SYS_SCSI_MAX_DEVICE)) {
printf("\nno SCSI devices available\n");
return 1;
}
printf ("\n Device %d: ", scsi_curr_dev);
dev_print(&scsi_dev_desc[scsi_curr_dev]);
return 0;
}
if (strncmp(argv[1],"scan",4) == 0) {
scsi_scan(1);
return 0;
}
if (strncmp(argv[1],"part",4) == 0) {
int dev, ok;
for (ok=0, dev=0; dev<CONFIG_SYS_SCSI_MAX_DEVICE; ++dev) {
if (scsi_dev_desc[dev].type!=DEV_TYPE_UNKNOWN) {
ok++;
if (dev)
printf("\n");
debug ("print_part of %x\n",dev);
part_print(&scsi_dev_desc[dev]);
}
}
if (!ok)
printf("\nno SCSI devices available\n");
return 1;
}
return CMD_RET_USAGE;
case 3:
if (strncmp(argv[1],"dev",3) == 0) {
int dev = (int)simple_strtoul(argv[2], NULL, 10);
printf ("\nSCSI device %d: ", dev);
if (dev >= CONFIG_SYS_SCSI_MAX_DEVICE) {
printf("unknown device\n");
return 1;
}
printf ("\n Device %d: ", dev);
dev_print(&scsi_dev_desc[dev]);
if(scsi_dev_desc[dev].type == DEV_TYPE_UNKNOWN) {
return 1;
}
scsi_curr_dev = dev;
printf("... is now current device\n");
return 0;
}
if (strncmp(argv[1],"part",4) == 0) {
int dev = (int)simple_strtoul(argv[2], NULL, 10);
if(scsi_dev_desc[dev].type != DEV_TYPE_UNKNOWN) {
part_print(&scsi_dev_desc[dev]);
}
else {
printf ("\nSCSI device %d not available\n", dev);
}
return 1;
}
return CMD_RET_USAGE;
default:
/* at least 4 args */
if (strcmp(argv[1],"read") == 0) {
ulong addr = simple_strtoul(argv[2], NULL, 16);
ulong blk = simple_strtoul(argv[3], NULL, 16);
ulong cnt = simple_strtoul(argv[4], NULL, 16);
ulong n;
printf ("\nSCSI read: device %d block # %ld, count %ld ... ",
scsi_curr_dev, blk, cnt);
n = scsi_read(&scsi_dev_desc[scsi_curr_dev],
blk, cnt, (ulong *)addr);
printf ("%ld blocks read: %s\n",n,(n==cnt) ? "OK" : "ERROR");
return 0;
} else if (strcmp(argv[1], "write") == 0) {
ulong addr = simple_strtoul(argv[2], NULL, 16);
ulong blk = simple_strtoul(argv[3], NULL, 16);
ulong cnt = simple_strtoul(argv[4], NULL, 16);
ulong n;
printf("\nSCSI write: device %d block # %ld, "
"count %ld ... ",
scsi_curr_dev, blk, cnt);
n = scsi_write(&scsi_dev_desc[scsi_curr_dev],
blk, cnt, (ulong *)addr);
printf("%ld blocks written: %s\n", n,
(n == cnt) ? "OK" : "ERROR");
return 0;
}
} /* switch */
return CMD_RET_USAGE;
}
U_BOOT_CMD(
scsi, 5, 1, do_scsi,
"SCSI sub-system",
"reset - reset SCSI controller\n"
"scsi info - show available SCSI devices\n"
"scsi scan - (re-)scan SCSI bus\n"
"scsi device [dev] - show or set current device\n"
"scsi part [dev] - print partition table of one or all SCSI devices\n"
"scsi read addr blk# cnt - read `cnt' blocks starting at block `blk#'\n"
" to memory address `addr'\n"
"scsi write addr blk# cnt - write `cnt' blocks starting at block\n"
" `blk#' from memory address `addr'"
);
U_BOOT_CMD(
scsiboot, 3, 1, do_scsiboot,
"boot from SCSI device",
"loadAddr dev:part"
);
#endif
/****************************************************************************************
* scsi_read
*/
/* almost the maximum amount of the scsi_ext command.. */
#define SCSI_MAX_READ_BLK 0xFFFF
#define SCSI_LBA48_READ 0xFFFFFFF
static ulong scsi_read(struct blk_desc *block_dev, lbaint_t blknr,
lbaint_t blkcnt, void *buffer)
{
int device = block_dev->devnum;
lbaint_t start, blks;
uintptr_t buf_addr;
unsigned short smallblks = 0;
ccb* pccb=(ccb *)&tempccb;
device&=0xff;
/* Setup device
*/
pccb->target=scsi_dev_desc[device].target;
pccb->lun=scsi_dev_desc[device].lun;
buf_addr=(unsigned long)buffer;
start=blknr;
blks=blkcnt;
debug("\nscsi_read: dev %d startblk " LBAF
", blccnt " LBAF " buffer %lx\n",
device, start, blks, (unsigned long)buffer);
do {
pccb->pdata=(unsigned char *)buf_addr;
#ifdef CONFIG_SYS_64BIT_LBA
if (start > SCSI_LBA48_READ) {
unsigned long blocks;
blocks = min_t(lbaint_t, blks, SCSI_MAX_READ_BLK);
pccb->datalen = scsi_dev_desc[device].blksz * blocks;
scsi_setup_read16(pccb, start, blocks);
start += blocks;
blks -= blocks;
} else
#endif
if (blks > SCSI_MAX_READ_BLK) {
pccb->datalen=scsi_dev_desc[device].blksz * SCSI_MAX_READ_BLK;
smallblks=SCSI_MAX_READ_BLK;
scsi_setup_read_ext(pccb,start,smallblks);
start+=SCSI_MAX_READ_BLK;
blks-=SCSI_MAX_READ_BLK;
}
else {
pccb->datalen=scsi_dev_desc[device].blksz * blks;
smallblks=(unsigned short) blks;
scsi_setup_read_ext(pccb,start,smallblks);
start+=blks;
blks=0;
}
debug("scsi_read_ext: startblk " LBAF
", blccnt %x buffer %" PRIXPTR "\n",
start, smallblks, buf_addr);
if (scsi_exec(pccb) != true) {
scsi_print_error(pccb);
blkcnt-=blks;
break;
}
buf_addr+=pccb->datalen;
} while(blks!=0);
debug("scsi_read_ext: end startblk " LBAF
", blccnt %x buffer %" PRIXPTR "\n", start, smallblks, buf_addr);
return(blkcnt);
}
/*******************************************************************************
* scsi_write
*/
/* Almost the maximum amount of the scsi_ext command.. */
#define SCSI_MAX_WRITE_BLK 0xFFFF
static ulong scsi_write(struct blk_desc *block_dev, lbaint_t blknr,
lbaint_t blkcnt, const void *buffer)
{
int device = block_dev->devnum;
lbaint_t start, blks;
uintptr_t buf_addr;
unsigned short smallblks;
ccb* pccb = (ccb *)&tempccb;
device &= 0xff;
/* Setup device
*/
pccb->target = scsi_dev_desc[device].target;
pccb->lun = scsi_dev_desc[device].lun;
buf_addr = (unsigned long)buffer;
start = blknr;
blks = blkcnt;
debug("\n%s: dev %d startblk " LBAF ", blccnt " LBAF " buffer %lx\n",
__func__, device, start, blks, (unsigned long)buffer);
do {
pccb->pdata = (unsigned char *)buf_addr;
if (blks > SCSI_MAX_WRITE_BLK) {
pccb->datalen = (scsi_dev_desc[device].blksz *
SCSI_MAX_WRITE_BLK);
smallblks = SCSI_MAX_WRITE_BLK;
scsi_setup_write_ext(pccb, start, smallblks);
start += SCSI_MAX_WRITE_BLK;
blks -= SCSI_MAX_WRITE_BLK;
} else {
pccb->datalen = scsi_dev_desc[device].blksz * blks;
smallblks = (unsigned short)blks;
scsi_setup_write_ext(pccb, start, smallblks);
start += blks;
blks = 0;
}
debug("%s: startblk " LBAF ", blccnt %x buffer %" PRIXPTR "\n",
__func__, start, smallblks, buf_addr);
if (scsi_exec(pccb) != true) {
scsi_print_error(pccb);
blkcnt -= blks;
break;
}
buf_addr += pccb->datalen;
} while (blks != 0);
debug("%s: end startblk " LBAF ", blccnt %x buffer %" PRIXPTR "\n",
__func__, start, smallblks, buf_addr);
return blkcnt;
}
/* copy src to dest, skipping leading and trailing blanks
* and null terminate the string
*/
void scsi_ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len)
{
int start,end;
start=0;
while(start<len) {
if(src[start]!=' ')
break;
start++;
}
end=len-1;
while(end>start) {
if(src[end]!=' ')
break;
end--;
}
for( ; start<=end; start++) {
*dest++=src[start];
}
*dest='\0';
}
/* Trim trailing blanks, and NUL-terminate string
*/
void scsi_trim_trail (unsigned char *str, unsigned int len)
{
unsigned char *p = str + len - 1;
while (len-- > 0) {
*p-- = '\0';
if (*p != ' ') {
return;
}
}
}
int scsi_read_capacity(ccb *pccb, lbaint_t *capacity, unsigned long *blksz)
{
*capacity = 0;
memset(pccb->cmd, 0, sizeof(pccb->cmd));
pccb->cmd[0] = SCSI_RD_CAPAC10;
pccb->cmd[1] = pccb->lun << 5;
pccb->cmdlen = 10;
pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
pccb->datalen = 8;
if (scsi_exec(pccb) != true)
return 1;
*capacity = ((lbaint_t)pccb->pdata[0] << 24) |
((lbaint_t)pccb->pdata[1] << 16) |
((lbaint_t)pccb->pdata[2] << 8) |
((lbaint_t)pccb->pdata[3]);
if (*capacity != 0xffffffff) {
/* Read capacity (10) was sufficient for this drive. */
*blksz = ((unsigned long)pccb->pdata[4] << 24) |
((unsigned long)pccb->pdata[5] << 16) |
((unsigned long)pccb->pdata[6] << 8) |
((unsigned long)pccb->pdata[7]);
return 0;
}
/* Read capacity (10) was insufficient. Use read capacity (16). */
memset(pccb->cmd, 0, sizeof(pccb->cmd));
pccb->cmd[0] = SCSI_RD_CAPAC16;
pccb->cmd[1] = 0x10;
pccb->cmdlen = 16;
pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
pccb->datalen = 16;
if (scsi_exec(pccb) != true)
return 1;
*capacity = ((uint64_t)pccb->pdata[0] << 56) |
((uint64_t)pccb->pdata[1] << 48) |
((uint64_t)pccb->pdata[2] << 40) |
((uint64_t)pccb->pdata[3] << 32) |
((uint64_t)pccb->pdata[4] << 24) |
((uint64_t)pccb->pdata[5] << 16) |
((uint64_t)pccb->pdata[6] << 8) |
((uint64_t)pccb->pdata[7]);
*blksz = ((uint64_t)pccb->pdata[8] << 56) |
((uint64_t)pccb->pdata[9] << 48) |
((uint64_t)pccb->pdata[10] << 40) |
((uint64_t)pccb->pdata[11] << 32) |
((uint64_t)pccb->pdata[12] << 24) |
((uint64_t)pccb->pdata[13] << 16) |
((uint64_t)pccb->pdata[14] << 8) |
((uint64_t)pccb->pdata[15]);
return 0;
}
/************************************************************************************
* Some setup (fill-in) routines
*/
void scsi_setup_test_unit_ready(ccb * pccb)
{
pccb->cmd[0]=SCSI_TST_U_RDY;
pccb->cmd[1]=pccb->lun<<5;
pccb->cmd[2]=0;
pccb->cmd[3]=0;
pccb->cmd[4]=0;
pccb->cmd[5]=0;
pccb->cmdlen=6;
pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
}
#ifdef CONFIG_SYS_64BIT_LBA
void scsi_setup_read16(ccb * pccb, lbaint_t start, unsigned long blocks)
{
pccb->cmd[0] = SCSI_READ16;
pccb->cmd[1] = pccb->lun<<5;
pccb->cmd[2] = ((unsigned char) (start >> 56)) & 0xff;
pccb->cmd[3] = ((unsigned char) (start >> 48)) & 0xff;
pccb->cmd[4] = ((unsigned char) (start >> 40)) & 0xff;
pccb->cmd[5] = ((unsigned char) (start >> 32)) & 0xff;
pccb->cmd[6] = ((unsigned char) (start >> 24)) & 0xff;
pccb->cmd[7] = ((unsigned char) (start >> 16)) & 0xff;
pccb->cmd[8] = ((unsigned char) (start >> 8)) & 0xff;
pccb->cmd[9] = ((unsigned char) (start)) & 0xff;
pccb->cmd[10] = 0;
pccb->cmd[11] = ((unsigned char) (blocks >> 24)) & 0xff;
pccb->cmd[12] = ((unsigned char) (blocks >> 16)) & 0xff;
pccb->cmd[13] = ((unsigned char) (blocks >> 8)) & 0xff;
pccb->cmd[14] = (unsigned char) blocks & 0xff;
pccb->cmd[15] = 0;
pccb->cmdlen = 16;
pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
debug ("scsi_setup_read16: cmd: %02X %02X "
"startblk %02X%02X%02X%02X%02X%02X%02X%02X "
"blccnt %02X%02X%02X%02X\n",
pccb->cmd[0], pccb->cmd[1],
pccb->cmd[2], pccb->cmd[3], pccb->cmd[4], pccb->cmd[5],
pccb->cmd[6], pccb->cmd[7], pccb->cmd[8], pccb->cmd[9],
pccb->cmd[11], pccb->cmd[12], pccb->cmd[13], pccb->cmd[14]);
}
#endif
void scsi_setup_read_ext(ccb * pccb, lbaint_t start, unsigned short blocks)
{
pccb->cmd[0]=SCSI_READ10;
pccb->cmd[1]=pccb->lun<<5;
pccb->cmd[2]=((unsigned char) (start>>24))&0xff;
pccb->cmd[3]=((unsigned char) (start>>16))&0xff;
pccb->cmd[4]=((unsigned char) (start>>8))&0xff;
pccb->cmd[5]=((unsigned char) (start))&0xff;
pccb->cmd[6]=0;
pccb->cmd[7]=((unsigned char) (blocks>>8))&0xff;
pccb->cmd[8]=(unsigned char) blocks & 0xff;
pccb->cmd[6]=0;
pccb->cmdlen=10;
pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
debug ("scsi_setup_read_ext: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n",
pccb->cmd[0],pccb->cmd[1],
pccb->cmd[2],pccb->cmd[3],pccb->cmd[4],pccb->cmd[5],
pccb->cmd[7],pccb->cmd[8]);
}
void scsi_setup_write_ext(ccb *pccb, lbaint_t start, unsigned short blocks)
{
pccb->cmd[0] = SCSI_WRITE10;
pccb->cmd[1] = pccb->lun << 5;
pccb->cmd[2] = ((unsigned char) (start>>24)) & 0xff;
pccb->cmd[3] = ((unsigned char) (start>>16)) & 0xff;
pccb->cmd[4] = ((unsigned char) (start>>8)) & 0xff;
pccb->cmd[5] = ((unsigned char) (start)) & 0xff;
pccb->cmd[6] = 0;
pccb->cmd[7] = ((unsigned char) (blocks>>8)) & 0xff;
pccb->cmd[8] = (unsigned char)blocks & 0xff;
pccb->cmd[9] = 0;
pccb->cmdlen = 10;
pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
debug("%s: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n",
__func__,
pccb->cmd[0], pccb->cmd[1],
pccb->cmd[2], pccb->cmd[3], pccb->cmd[4], pccb->cmd[5],
pccb->cmd[7], pccb->cmd[8]);
}
void scsi_setup_read6(ccb * pccb, lbaint_t start, unsigned short blocks)
{
pccb->cmd[0]=SCSI_READ6;
pccb->cmd[1]=pccb->lun<<5 | (((unsigned char)(start>>16))&0x1f);
pccb->cmd[2]=((unsigned char) (start>>8))&0xff;
pccb->cmd[3]=((unsigned char) (start))&0xff;
pccb->cmd[4]=(unsigned char) blocks & 0xff;
pccb->cmd[5]=0;
pccb->cmdlen=6;
pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
debug ("scsi_setup_read6: cmd: %02X %02X startblk %02X%02X blccnt %02X\n",
pccb->cmd[0],pccb->cmd[1],
pccb->cmd[2],pccb->cmd[3],pccb->cmd[4]);
}
void scsi_setup_inquiry(ccb * pccb)
{
pccb->cmd[0]=SCSI_INQUIRY;
pccb->cmd[1]=pccb->lun<<5;
pccb->cmd[2]=0;
pccb->cmd[3]=0;
if(pccb->datalen>255)
pccb->cmd[4]=255;
else
pccb->cmd[4]=(unsigned char)pccb->datalen;
pccb->cmd[5]=0;
pccb->cmdlen=6;
pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
}
Reference in a new issue View git blame Copy permalink