^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0-or-later */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * sata_promise.h - Promise SATA common definitions and inline funcs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright 2003-2004 Red Hat, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * libata documentation is available via 'make {ps|pdf}docs',
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * as Documentation/driver-api/libata.rst
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #ifndef __SATA_PROMISE_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #define __SATA_PROMISE_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/ata.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) enum pdc_packet_bits {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) PDC_PKT_READ = (1 << 2),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) PDC_PKT_NODATA = (1 << 3),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) PDC_PKT_SIZEMASK = (1 << 7) | (1 << 6) | (1 << 5),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) PDC_PKT_CLEAR_BSY = (1 << 4),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) PDC_PKT_WAIT_DRDY = (1 << 3) | (1 << 4),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) PDC_LAST_REG = (1 << 3),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) PDC_REG_DEVCTL = (1 << 3) | (1 << 2) | (1 << 1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) static inline unsigned int pdc_pkt_header(struct ata_taskfile *tf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) dma_addr_t sg_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) unsigned int devno, u8 *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) u8 dev_reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) __le32 *buf32 = (__le32 *) buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) /* set control bits (byte 0), zero delay seq id (byte 3),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) * and seq id (byte 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) switch (tf->protocol) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) case ATA_PROT_DMA:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) if (!(tf->flags & ATA_TFLAG_WRITE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) buf32[0] = cpu_to_le32(PDC_PKT_READ);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) buf32[0] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) case ATA_PROT_NODATA:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) buf32[0] = cpu_to_le32(PDC_PKT_NODATA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) BUG();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) buf32[1] = cpu_to_le32(sg_table); /* S/G table addr */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) buf32[2] = 0; /* no next-packet */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) if (devno == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) dev_reg = ATA_DEVICE_OBS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) dev_reg = ATA_DEVICE_OBS | ATA_DEV1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) /* select device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) buf[12] = (1 << 5) | PDC_PKT_CLEAR_BSY | ATA_REG_DEVICE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) buf[13] = dev_reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) /* device control register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) buf[14] = (1 << 5) | PDC_REG_DEVCTL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) buf[15] = tf->ctl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) return 16; /* offset of next byte */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) static inline unsigned int pdc_pkt_footer(struct ata_taskfile *tf, u8 *buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) unsigned int i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) if (tf->flags & ATA_TFLAG_DEVICE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) buf[i++] = (1 << 5) | ATA_REG_DEVICE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) buf[i++] = tf->device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) /* and finally the command itself; also includes end-of-pkt marker */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) buf[i++] = (1 << 5) | PDC_LAST_REG | ATA_REG_CMD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) buf[i++] = tf->command;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) return i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) static inline unsigned int pdc_prep_lba28(struct ata_taskfile *tf, u8 *buf, unsigned int i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) /* the "(1 << 5)" should be read "(count << 5)" */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) /* ATA command block registers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) buf[i++] = (1 << 5) | ATA_REG_FEATURE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) buf[i++] = tf->feature;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) buf[i++] = (1 << 5) | ATA_REG_NSECT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) buf[i++] = tf->nsect;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) buf[i++] = (1 << 5) | ATA_REG_LBAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) buf[i++] = tf->lbal;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) buf[i++] = (1 << 5) | ATA_REG_LBAM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) buf[i++] = tf->lbam;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) buf[i++] = (1 << 5) | ATA_REG_LBAH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) buf[i++] = tf->lbah;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) return i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) static inline unsigned int pdc_prep_lba48(struct ata_taskfile *tf, u8 *buf, unsigned int i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) /* the "(2 << 5)" should be read "(count << 5)" */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) /* ATA command block registers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) buf[i++] = (2 << 5) | ATA_REG_FEATURE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) buf[i++] = tf->hob_feature;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) buf[i++] = tf->feature;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) buf[i++] = (2 << 5) | ATA_REG_NSECT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) buf[i++] = tf->hob_nsect;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) buf[i++] = tf->nsect;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) buf[i++] = (2 << 5) | ATA_REG_LBAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) buf[i++] = tf->hob_lbal;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) buf[i++] = tf->lbal;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) buf[i++] = (2 << 5) | ATA_REG_LBAM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) buf[i++] = tf->hob_lbam;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) buf[i++] = tf->lbam;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) buf[i++] = (2 << 5) | ATA_REG_LBAH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) buf[i++] = tf->hob_lbah;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) buf[i++] = tf->lbah;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) return i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) #endif /* __SATA_PROMISE_H__ */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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