scsi.c (2e192b245ed36a63bab0ef576999a95e23f60ecd) scsi.c (4101f6879256720b30df712089a3df18565f9203)
1/*
2 * (C) Copyright 2001
3 * Denis Peter, MPL AG Switzerland
4 *
5 * SPDX-License-Identifier: GPL-2.0+
6 */
7
8/*

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43static ccb tempccb; /* temporary scsi command buffer */
44
45static unsigned char tempbuff[512]; /* temporary data buffer */
46
47static int scsi_max_devs; /* number of highest available scsi device */
48
49static int scsi_curr_dev; /* current device */
50
1/*
2 * (C) Copyright 2001
3 * Denis Peter, MPL AG Switzerland
4 *
5 * SPDX-License-Identifier: GPL-2.0+
6 */
7
8/*

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43static ccb tempccb; /* temporary scsi command buffer */
44
45static unsigned char tempbuff[512]; /* temporary data buffer */
46
47static int scsi_max_devs; /* number of highest available scsi device */
48
49static int scsi_curr_dev; /* current device */
50
51static block_dev_desc_t scsi_dev_desc[CONFIG_SYS_SCSI_MAX_DEVICE];
51static struct blk_desc scsi_dev_desc[CONFIG_SYS_SCSI_MAX_DEVICE];
52
53/********************************************************************************
54 * forward declerations of some Setup Routines
55 */
56void scsi_setup_test_unit_ready(ccb * pccb);
57void scsi_setup_read6(ccb * pccb, lbaint_t start, unsigned short blocks);
58void scsi_setup_read_ext(ccb * pccb, lbaint_t start, unsigned short blocks);
59void scsi_setup_read16(ccb * pccb, lbaint_t start, unsigned long blocks);
60
61static void scsi_setup_write_ext(ccb *pccb, lbaint_t start,
62 unsigned short blocks);
63void scsi_setup_inquiry(ccb * pccb);
64void scsi_ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len);
65
66
67static int scsi_read_capacity(ccb *pccb, lbaint_t *capacity,
68 unsigned long *blksz);
52
53/********************************************************************************
54 * forward declerations of some Setup Routines
55 */
56void scsi_setup_test_unit_ready(ccb * pccb);
57void scsi_setup_read6(ccb * pccb, lbaint_t start, unsigned short blocks);
58void scsi_setup_read_ext(ccb * pccb, lbaint_t start, unsigned short blocks);
59void scsi_setup_read16(ccb * pccb, lbaint_t start, unsigned long blocks);
60
61static void scsi_setup_write_ext(ccb *pccb, lbaint_t start,
62 unsigned short blocks);
63void scsi_setup_inquiry(ccb * pccb);
64void scsi_ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len);
65
66
67static int scsi_read_capacity(ccb *pccb, lbaint_t *capacity,
68 unsigned long *blksz);
69static ulong scsi_read(block_dev_desc_t *block_dev, lbaint_t blknr,
69static ulong scsi_read(struct blk_desc *block_dev, lbaint_t blknr,
70 lbaint_t blkcnt, void *buffer);
70 lbaint_t blkcnt, void *buffer);
71static ulong scsi_write(block_dev_desc_t *block_dev, lbaint_t blknr,
71static ulong scsi_write(struct blk_desc *block_dev, lbaint_t blknr,
72 lbaint_t blkcnt, const void *buffer);
73
74
75/*********************************************************************************
76 * (re)-scan the scsi bus and reports scsi device info
77 * to the user if mode = 1
78 */
79void scsi_scan(int mode)

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234 bootstage_start(BOOTSTAGE_ID_ACCUM_SCSI, "ahci");
235 scsi_low_level_init(busdevfunc);
236 scsi_scan(1);
237 bootstage_accum(BOOTSTAGE_ID_ACCUM_SCSI);
238}
239#endif
240
241#ifdef CONFIG_PARTITIONS
72 lbaint_t blkcnt, const void *buffer);
73
74
75/*********************************************************************************
76 * (re)-scan the scsi bus and reports scsi device info
77 * to the user if mode = 1
78 */
79void scsi_scan(int mode)

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234 bootstage_start(BOOTSTAGE_ID_ACCUM_SCSI, "ahci");
235 scsi_low_level_init(busdevfunc);
236 scsi_scan(1);
237 bootstage_accum(BOOTSTAGE_ID_ACCUM_SCSI);
238}
239#endif
240
241#ifdef CONFIG_PARTITIONS
242block_dev_desc_t * scsi_get_dev(int dev)
242struct blk_desc *scsi_get_dev(int dev)
243{
244 return (dev < CONFIG_SYS_SCSI_MAX_DEVICE) ? &scsi_dev_desc[dev] : NULL;
245}
246#endif
247
248/******************************************************************************
249 * scsi boot command intepreter. Derived from diskboot
250 */

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371/****************************************************************************************
372 * scsi_read
373 */
374
375/* almost the maximum amount of the scsi_ext command.. */
376#define SCSI_MAX_READ_BLK 0xFFFF
377#define SCSI_LBA48_READ 0xFFFFFFF
378
243{
244 return (dev < CONFIG_SYS_SCSI_MAX_DEVICE) ? &scsi_dev_desc[dev] : NULL;
245}
246#endif
247
248/******************************************************************************
249 * scsi boot command intepreter. Derived from diskboot
250 */

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371/****************************************************************************************
372 * scsi_read
373 */
374
375/* almost the maximum amount of the scsi_ext command.. */
376#define SCSI_MAX_READ_BLK 0xFFFF
377#define SCSI_LBA48_READ 0xFFFFFFF
378
379static ulong scsi_read(block_dev_desc_t *block_dev, lbaint_t blknr,
379static ulong scsi_read(struct blk_desc *block_dev, lbaint_t blknr,
380 lbaint_t blkcnt, void *buffer)
381{
382 int device = block_dev->dev;
383 lbaint_t start, blks;
384 uintptr_t buf_addr;
385 unsigned short smallblks = 0;
386 ccb* pccb=(ccb *)&tempccb;
387 device&=0xff;

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438
439/*******************************************************************************
440 * scsi_write
441 */
442
443/* Almost the maximum amount of the scsi_ext command.. */
444#define SCSI_MAX_WRITE_BLK 0xFFFF
445
380 lbaint_t blkcnt, void *buffer)
381{
382 int device = block_dev->dev;
383 lbaint_t start, blks;
384 uintptr_t buf_addr;
385 unsigned short smallblks = 0;
386 ccb* pccb=(ccb *)&tempccb;
387 device&=0xff;

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438
439/*******************************************************************************
440 * scsi_write
441 */
442
443/* Almost the maximum amount of the scsi_ext command.. */
444#define SCSI_MAX_WRITE_BLK 0xFFFF
445
446static ulong scsi_write(block_dev_desc_t *block_dev, lbaint_t blknr,
446static ulong scsi_write(struct blk_desc *block_dev, lbaint_t blknr,
447 lbaint_t blkcnt, const void *buffer)
448{
449 int device = block_dev->dev;
450 lbaint_t start, blks;
451 uintptr_t buf_addr;
452 unsigned short smallblks;
453 ccb* pccb = (ccb *)&tempccb;
454 device &= 0xff;

--- 279 unchanged lines hidden --- 		447 lbaint_t blkcnt, const void *buffer)
448{
449 int device = block_dev->dev;
450 lbaint_t start, blks;
451 uintptr_t buf_addr;
452 unsigned short smallblks;
453 ccb* pccb = (ccb *)&tempccb;
454 device &= 0xff;

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