Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * sata_qstor.c - Pacific Digital Corporation QStor SATA |
| 3 | * |
| 4 | * Maintained by: Mark Lord <mlord@pobox.com> |
| 5 | * |
| 6 | * Copyright 2005 Pacific Digital Corporation. |
| 7 | * (OSL/GPL code release authorized by Jalil Fadavi). |
| 8 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9 | * |
Jeff Garzik | af36d7f | 2005-08-28 20:18:39 -0400 | [diff] [blame] | 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License as published by |
| 12 | * the Free Software Foundation; either version 2, or (at your option) |
| 13 | * any later version. |
| 14 | * |
| 15 | * This program is distributed in the hope that it will be useful, |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | * GNU General Public License for more details. |
| 19 | * |
| 20 | * You should have received a copy of the GNU General Public License |
| 21 | * along with this program; see the file COPYING. If not, write to |
| 22 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
| 23 | * |
| 24 | * |
| 25 | * libata documentation is available via 'make {ps|pdf}docs', |
| 26 | * as Documentation/DocBook/libata.* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | * |
| 28 | */ |
| 29 | |
| 30 | #include <linux/kernel.h> |
| 31 | #include <linux/module.h> |
| 32 | #include <linux/pci.h> |
| 33 | #include <linux/init.h> |
| 34 | #include <linux/blkdev.h> |
| 35 | #include <linux/delay.h> |
| 36 | #include <linux/interrupt.h> |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 37 | #include <linux/device.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | #include <scsi/scsi_host.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | #include <linux/libata.h> |
| 40 | |
| 41 | #define DRV_NAME "sata_qstor" |
Jeff Garzik | 2a3103c | 2007-08-31 04:54:06 -0400 | [diff] [blame] | 42 | #define DRV_VERSION "0.09" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 43 | |
| 44 | enum { |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 45 | QS_MMIO_BAR = 4, |
| 46 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | QS_PORTS = 4, |
| 48 | QS_MAX_PRD = LIBATA_MAX_PRD, |
| 49 | QS_CPB_ORDER = 6, |
| 50 | QS_CPB_BYTES = (1 << QS_CPB_ORDER), |
| 51 | QS_PRD_BYTES = QS_MAX_PRD * 16, |
| 52 | QS_PKT_BYTES = QS_CPB_BYTES + QS_PRD_BYTES, |
| 53 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | /* global register offsets */ |
| 55 | QS_HCF_CNFG3 = 0x0003, /* host configuration offset */ |
| 56 | QS_HID_HPHY = 0x0004, /* host physical interface info */ |
| 57 | QS_HCT_CTRL = 0x00e4, /* global interrupt mask offset */ |
| 58 | QS_HST_SFF = 0x0100, /* host status fifo offset */ |
| 59 | QS_HVS_SERD3 = 0x0393, /* PHY enable offset */ |
| 60 | |
| 61 | /* global control bits */ |
| 62 | QS_HPHY_64BIT = (1 << 1), /* 64-bit bus detected */ |
| 63 | QS_CNFG3_GSRST = 0x01, /* global chip reset */ |
| 64 | QS_SERD3_PHY_ENA = 0xf0, /* PHY detection ENAble*/ |
| 65 | |
| 66 | /* per-channel register offsets */ |
| 67 | QS_CCF_CPBA = 0x0710, /* chan CPB base address */ |
| 68 | QS_CCF_CSEP = 0x0718, /* chan CPB separation factor */ |
| 69 | QS_CFC_HUFT = 0x0800, /* host upstream fifo threshold */ |
| 70 | QS_CFC_HDFT = 0x0804, /* host downstream fifo threshold */ |
| 71 | QS_CFC_DUFT = 0x0808, /* dev upstream fifo threshold */ |
| 72 | QS_CFC_DDFT = 0x080c, /* dev downstream fifo threshold */ |
| 73 | QS_CCT_CTR0 = 0x0900, /* chan control-0 offset */ |
| 74 | QS_CCT_CTR1 = 0x0901, /* chan control-1 offset */ |
| 75 | QS_CCT_CFF = 0x0a00, /* chan command fifo offset */ |
| 76 | |
| 77 | /* channel control bits */ |
| 78 | QS_CTR0_REG = (1 << 1), /* register mode (vs. pkt mode) */ |
| 79 | QS_CTR0_CLER = (1 << 2), /* clear channel errors */ |
| 80 | QS_CTR1_RDEV = (1 << 1), /* sata phy/comms reset */ |
| 81 | QS_CTR1_RCHN = (1 << 4), /* reset channel logic */ |
| 82 | QS_CCF_RUN_PKT = 0x107, /* RUN a new dma PKT */ |
| 83 | |
| 84 | /* pkt sub-field headers */ |
| 85 | QS_HCB_HDR = 0x01, /* Host Control Block header */ |
| 86 | QS_DCB_HDR = 0x02, /* Device Control Block header */ |
| 87 | |
| 88 | /* pkt HCB flag bits */ |
| 89 | QS_HF_DIRO = (1 << 0), /* data DIRection Out */ |
| 90 | QS_HF_DAT = (1 << 3), /* DATa pkt */ |
| 91 | QS_HF_IEN = (1 << 4), /* Interrupt ENable */ |
| 92 | QS_HF_VLD = (1 << 5), /* VaLiD pkt */ |
| 93 | |
| 94 | /* pkt DCB flag bits */ |
| 95 | QS_DF_PORD = (1 << 2), /* Pio OR Dma */ |
| 96 | QS_DF_ELBA = (1 << 3), /* Extended LBA (lba48) */ |
| 97 | |
| 98 | /* PCI device IDs */ |
| 99 | board_2068_idx = 0, /* QStor 4-port SATA/RAID */ |
| 100 | }; |
| 101 | |
Al Viro | 0420dd1 | 2005-10-21 06:46:02 +0100 | [diff] [blame] | 102 | enum { |
| 103 | QS_DMA_BOUNDARY = ~0UL |
| 104 | }; |
| 105 | |
Mark Lord | 12ee7d3 | 2007-11-07 10:52:55 -0500 | [diff] [blame] | 106 | typedef enum { qs_state_mmio, qs_state_pkt } qs_state_t; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | |
| 108 | struct qs_port_priv { |
| 109 | u8 *pkt; |
| 110 | dma_addr_t pkt_dma; |
| 111 | qs_state_t state; |
| 112 | }; |
| 113 | |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 114 | static int qs_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val); |
| 115 | static int qs_scr_write(struct ata_port *ap, unsigned int sc_reg, u32 val); |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 116 | static int qs_ata_init_one(struct pci_dev *pdev, const struct pci_device_id *ent); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 117 | static int qs_port_start(struct ata_port *ap); |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 118 | static void qs_host_stop(struct ata_host *host); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | static void qs_qc_prep(struct ata_queued_cmd *qc); |
Tejun Heo | 9a3d9eb | 2006-01-23 13:09:36 +0900 | [diff] [blame] | 120 | static unsigned int qs_qc_issue(struct ata_queued_cmd *qc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 121 | static int qs_check_atapi_dma(struct ata_queued_cmd *qc); |
Alan Cox | b73fc89 | 2005-08-26 16:03:19 +0100 | [diff] [blame] | 122 | static void qs_bmdma_stop(struct ata_queued_cmd *qc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | static u8 qs_bmdma_status(struct ata_port *ap); |
Mark Lord | 6004bda | 2007-11-07 10:54:15 -0500 | [diff] [blame] | 124 | static void qs_freeze(struct ata_port *ap); |
| 125 | static void qs_thaw(struct ata_port *ap); |
Tejun Heo | a1efdab | 2008-03-25 12:22:50 +0900 | [diff] [blame] | 126 | static int qs_prereset(struct ata_link *link, unsigned long deadline); |
Mark Lord | 6004bda | 2007-11-07 10:54:15 -0500 | [diff] [blame] | 127 | static void qs_error_handler(struct ata_port *ap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 128 | |
Jeff Garzik | 193515d | 2005-11-07 00:59:37 -0500 | [diff] [blame] | 129 | static struct scsi_host_template qs_ata_sht = { |
Tejun Heo | 68d1d07 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 130 | ATA_BASE_SHT(DRV_NAME), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | .sg_tablesize = QS_MAX_PRD, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 132 | .dma_boundary = QS_DMA_BOUNDARY, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 133 | }; |
| 134 | |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 135 | static struct ata_port_operations qs_ata_ops = { |
| 136 | .inherits = &ata_sff_port_ops, |
| 137 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | .check_atapi_dma = qs_check_atapi_dma, |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 139 | .bmdma_stop = qs_bmdma_stop, |
| 140 | .bmdma_status = qs_bmdma_status, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | .qc_prep = qs_qc_prep, |
| 142 | .qc_issue = qs_qc_issue, |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 143 | |
Mark Lord | 6004bda | 2007-11-07 10:54:15 -0500 | [diff] [blame] | 144 | .freeze = qs_freeze, |
| 145 | .thaw = qs_thaw, |
Tejun Heo | a1efdab | 2008-03-25 12:22:50 +0900 | [diff] [blame] | 146 | .prereset = qs_prereset, |
| 147 | .softreset = ATA_OP_NULL, |
Mark Lord | 6004bda | 2007-11-07 10:54:15 -0500 | [diff] [blame] | 148 | .error_handler = qs_error_handler, |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 149 | .post_internal_cmd = ATA_OP_NULL, |
| 150 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 151 | .scr_read = qs_scr_read, |
| 152 | .scr_write = qs_scr_write, |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 153 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 154 | .port_start = qs_port_start, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | .host_stop = qs_host_stop, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 156 | }; |
| 157 | |
Arjan van de Ven | 98ac62d | 2005-11-28 10:06:23 +0100 | [diff] [blame] | 158 | static const struct ata_port_info qs_port_info[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 159 | /* board_2068_idx */ |
| 160 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 161 | .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | |
Albert Lee | e50362e | 2005-09-27 17:39:50 +0800 | [diff] [blame] | 162 | ATA_FLAG_MMIO | ATA_FLAG_PIO_POLLING, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 163 | .pio_mask = 0x10, /* pio4 */ |
Jeff Garzik | bf6263a | 2007-07-09 12:16:50 -0400 | [diff] [blame] | 164 | .udma_mask = ATA_UDMA6, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 165 | .port_ops = &qs_ata_ops, |
| 166 | }, |
| 167 | }; |
| 168 | |
Jeff Garzik | 3b7d697 | 2005-11-10 11:04:11 -0500 | [diff] [blame] | 169 | static const struct pci_device_id qs_ata_pci_tbl[] = { |
Jeff Garzik | 2d2744f | 2006-09-28 20:21:59 -0400 | [diff] [blame] | 170 | { PCI_VDEVICE(PDC, 0x2068), board_2068_idx }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | |
| 172 | { } /* terminate list */ |
| 173 | }; |
| 174 | |
| 175 | static struct pci_driver qs_ata_pci_driver = { |
| 176 | .name = DRV_NAME, |
| 177 | .id_table = qs_ata_pci_tbl, |
| 178 | .probe = qs_ata_init_one, |
| 179 | .remove = ata_pci_remove_one, |
| 180 | }; |
| 181 | |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 182 | static void __iomem *qs_mmio_base(struct ata_host *host) |
| 183 | { |
| 184 | return host->iomap[QS_MMIO_BAR]; |
| 185 | } |
| 186 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 187 | static int qs_check_atapi_dma(struct ata_queued_cmd *qc) |
| 188 | { |
| 189 | return 1; /* ATAPI DMA not supported */ |
| 190 | } |
| 191 | |
Jeff Garzik | d18d36b | 2005-08-27 04:13:52 -0400 | [diff] [blame] | 192 | static void qs_bmdma_stop(struct ata_queued_cmd *qc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 193 | { |
| 194 | /* nothing */ |
| 195 | } |
| 196 | |
| 197 | static u8 qs_bmdma_status(struct ata_port *ap) |
| 198 | { |
| 199 | return 0; |
| 200 | } |
| 201 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | static inline void qs_enter_reg_mode(struct ata_port *ap) |
| 203 | { |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 204 | u8 __iomem *chan = qs_mmio_base(ap->host) + (ap->port_no * 0x4000); |
Mark Lord | 12ee7d3 | 2007-11-07 10:52:55 -0500 | [diff] [blame] | 205 | struct qs_port_priv *pp = ap->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 206 | |
Mark Lord | 12ee7d3 | 2007-11-07 10:52:55 -0500 | [diff] [blame] | 207 | pp->state = qs_state_mmio; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 208 | writeb(QS_CTR0_REG, chan + QS_CCT_CTR0); |
| 209 | readb(chan + QS_CCT_CTR0); /* flush */ |
| 210 | } |
| 211 | |
| 212 | static inline void qs_reset_channel_logic(struct ata_port *ap) |
| 213 | { |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 214 | u8 __iomem *chan = qs_mmio_base(ap->host) + (ap->port_no * 0x4000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 215 | |
| 216 | writeb(QS_CTR1_RCHN, chan + QS_CCT_CTR1); |
| 217 | readb(chan + QS_CCT_CTR0); /* flush */ |
| 218 | qs_enter_reg_mode(ap); |
| 219 | } |
| 220 | |
Mark Lord | 6004bda | 2007-11-07 10:54:15 -0500 | [diff] [blame] | 221 | static void qs_freeze(struct ata_port *ap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 222 | { |
Mark Lord | 6004bda | 2007-11-07 10:54:15 -0500 | [diff] [blame] | 223 | u8 __iomem *mmio_base = qs_mmio_base(ap->host); |
| 224 | |
| 225 | writeb(0, mmio_base + QS_HCT_CTRL); /* disable host interrupts */ |
| 226 | qs_enter_reg_mode(ap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 227 | } |
| 228 | |
Mark Lord | 6004bda | 2007-11-07 10:54:15 -0500 | [diff] [blame] | 229 | static void qs_thaw(struct ata_port *ap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | { |
Mark Lord | 6004bda | 2007-11-07 10:54:15 -0500 | [diff] [blame] | 231 | u8 __iomem *mmio_base = qs_mmio_base(ap->host); |
| 232 | |
| 233 | qs_enter_reg_mode(ap); |
| 234 | writeb(1, mmio_base + QS_HCT_CTRL); /* enable host interrupts */ |
| 235 | } |
| 236 | |
| 237 | static int qs_prereset(struct ata_link *link, unsigned long deadline) |
| 238 | { |
| 239 | struct ata_port *ap = link->ap; |
| 240 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | qs_reset_channel_logic(ap); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 242 | return ata_sff_prereset(link, deadline); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 243 | } |
| 244 | |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 245 | static int qs_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 246 | { |
| 247 | if (sc_reg > SCR_CONTROL) |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 248 | return -EINVAL; |
| 249 | *val = readl(ap->ioaddr.scr_addr + (sc_reg * 8)); |
| 250 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 251 | } |
| 252 | |
Mark Lord | 6004bda | 2007-11-07 10:54:15 -0500 | [diff] [blame] | 253 | static void qs_error_handler(struct ata_port *ap) |
| 254 | { |
| 255 | qs_enter_reg_mode(ap); |
Tejun Heo | a1efdab | 2008-03-25 12:22:50 +0900 | [diff] [blame] | 256 | ata_std_error_handler(ap); |
Mark Lord | 6004bda | 2007-11-07 10:54:15 -0500 | [diff] [blame] | 257 | } |
| 258 | |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 259 | static int qs_scr_write(struct ata_port *ap, unsigned int sc_reg, u32 val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 | { |
| 261 | if (sc_reg > SCR_CONTROL) |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 262 | return -EINVAL; |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 263 | writel(val, ap->ioaddr.scr_addr + (sc_reg * 8)); |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 264 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | } |
| 266 | |
Jeff Garzik | 828d09d | 2005-11-12 01:27:07 -0500 | [diff] [blame] | 267 | static unsigned int qs_fill_sg(struct ata_queued_cmd *qc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 268 | { |
Jeff Garzik | cedc9a4 | 2005-10-05 07:13:30 -0400 | [diff] [blame] | 269 | struct scatterlist *sg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 270 | struct ata_port *ap = qc->ap; |
| 271 | struct qs_port_priv *pp = ap->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 272 | u8 *prd = pp->pkt + QS_CPB_BYTES; |
Tejun Heo | ff2aeb1 | 2007-12-05 16:43:11 +0900 | [diff] [blame] | 273 | unsigned int si; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 274 | |
Tejun Heo | ff2aeb1 | 2007-12-05 16:43:11 +0900 | [diff] [blame] | 275 | for_each_sg(qc->sg, sg, qc->n_elem, si) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 276 | u64 addr; |
| 277 | u32 len; |
| 278 | |
| 279 | addr = sg_dma_address(sg); |
| 280 | *(__le64 *)prd = cpu_to_le64(addr); |
| 281 | prd += sizeof(u64); |
| 282 | |
| 283 | len = sg_dma_len(sg); |
| 284 | *(__le32 *)prd = cpu_to_le32(len); |
| 285 | prd += sizeof(u64); |
| 286 | |
Tejun Heo | ff2aeb1 | 2007-12-05 16:43:11 +0900 | [diff] [blame] | 287 | VPRINTK("PRD[%u] = (0x%llX, 0x%X)\n", si, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 288 | (unsigned long long)addr, len); |
| 289 | } |
Jeff Garzik | 828d09d | 2005-11-12 01:27:07 -0500 | [diff] [blame] | 290 | |
Tejun Heo | ff2aeb1 | 2007-12-05 16:43:11 +0900 | [diff] [blame] | 291 | return si; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 292 | } |
| 293 | |
| 294 | static void qs_qc_prep(struct ata_queued_cmd *qc) |
| 295 | { |
| 296 | struct qs_port_priv *pp = qc->ap->private_data; |
| 297 | u8 dflags = QS_DF_PORD, *buf = pp->pkt; |
| 298 | u8 hflags = QS_HF_DAT | QS_HF_IEN | QS_HF_VLD; |
| 299 | u64 addr; |
Jeff Garzik | 828d09d | 2005-11-12 01:27:07 -0500 | [diff] [blame] | 300 | unsigned int nelem; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 301 | |
| 302 | VPRINTK("ENTER\n"); |
| 303 | |
| 304 | qs_enter_reg_mode(qc->ap); |
| 305 | if (qc->tf.protocol != ATA_PROT_DMA) { |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 306 | ata_sff_qc_prep(qc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 307 | return; |
| 308 | } |
| 309 | |
Jeff Garzik | 828d09d | 2005-11-12 01:27:07 -0500 | [diff] [blame] | 310 | nelem = qs_fill_sg(qc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 311 | |
| 312 | if ((qc->tf.flags & ATA_TFLAG_WRITE)) |
| 313 | hflags |= QS_HF_DIRO; |
| 314 | if ((qc->tf.flags & ATA_TFLAG_LBA48)) |
| 315 | dflags |= QS_DF_ELBA; |
| 316 | |
| 317 | /* host control block (HCB) */ |
| 318 | buf[ 0] = QS_HCB_HDR; |
| 319 | buf[ 1] = hflags; |
Tejun Heo | 726f078 | 2007-01-03 17:30:39 +0900 | [diff] [blame] | 320 | *(__le32 *)(&buf[ 4]) = cpu_to_le32(qc->nbytes); |
Jeff Garzik | 828d09d | 2005-11-12 01:27:07 -0500 | [diff] [blame] | 321 | *(__le32 *)(&buf[ 8]) = cpu_to_le32(nelem); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 322 | addr = ((u64)pp->pkt_dma) + QS_CPB_BYTES; |
| 323 | *(__le64 *)(&buf[16]) = cpu_to_le64(addr); |
| 324 | |
| 325 | /* device control block (DCB) */ |
| 326 | buf[24] = QS_DCB_HDR; |
| 327 | buf[28] = dflags; |
| 328 | |
| 329 | /* frame information structure (FIS) */ |
Tejun Heo | 9977126 | 2007-07-16 14:29:38 +0900 | [diff] [blame] | 330 | ata_tf_to_fis(&qc->tf, 0, 1, &buf[32]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 331 | } |
| 332 | |
| 333 | static inline void qs_packet_start(struct ata_queued_cmd *qc) |
| 334 | { |
| 335 | struct ata_port *ap = qc->ap; |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 336 | u8 __iomem *chan = qs_mmio_base(ap->host) + (ap->port_no * 0x4000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 337 | |
| 338 | VPRINTK("ENTER, ap %p\n", ap); |
| 339 | |
| 340 | writeb(QS_CTR0_CLER, chan + QS_CCT_CTR0); |
| 341 | wmb(); /* flush PRDs and pkt to memory */ |
| 342 | writel(QS_CCF_RUN_PKT, chan + QS_CCT_CFF); |
| 343 | readl(chan + QS_CCT_CFF); /* flush */ |
| 344 | } |
| 345 | |
Tejun Heo | 9a3d9eb | 2006-01-23 13:09:36 +0900 | [diff] [blame] | 346 | static unsigned int qs_qc_issue(struct ata_queued_cmd *qc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 347 | { |
| 348 | struct qs_port_priv *pp = qc->ap->private_data; |
| 349 | |
| 350 | switch (qc->tf.protocol) { |
| 351 | case ATA_PROT_DMA: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | pp->state = qs_state_pkt; |
| 353 | qs_packet_start(qc); |
| 354 | return 0; |
| 355 | |
Tejun Heo | 0dc3688 | 2007-12-18 16:34:43 -0500 | [diff] [blame] | 356 | case ATAPI_PROT_DMA: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 357 | BUG(); |
| 358 | break; |
| 359 | |
| 360 | default: |
| 361 | break; |
| 362 | } |
| 363 | |
| 364 | pp->state = qs_state_mmio; |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 365 | return ata_sff_qc_issue(qc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 366 | } |
| 367 | |
Mark Lord | 6004bda | 2007-11-07 10:54:15 -0500 | [diff] [blame] | 368 | static void qs_do_or_die(struct ata_queued_cmd *qc, u8 status) |
| 369 | { |
| 370 | qc->err_mask |= ac_err_mask(status); |
| 371 | |
| 372 | if (!qc->err_mask) { |
| 373 | ata_qc_complete(qc); |
| 374 | } else { |
| 375 | struct ata_port *ap = qc->ap; |
| 376 | struct ata_eh_info *ehi = &ap->link.eh_info; |
| 377 | |
| 378 | ata_ehi_clear_desc(ehi); |
| 379 | ata_ehi_push_desc(ehi, "status 0x%02X", status); |
| 380 | |
| 381 | if (qc->err_mask == AC_ERR_DEV) |
| 382 | ata_port_abort(ap); |
| 383 | else |
| 384 | ata_port_freeze(ap); |
| 385 | } |
| 386 | } |
| 387 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 388 | static inline unsigned int qs_intr_pkt(struct ata_host *host) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 389 | { |
| 390 | unsigned int handled = 0; |
| 391 | u8 sFFE; |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 392 | u8 __iomem *mmio_base = qs_mmio_base(host); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 393 | |
| 394 | do { |
| 395 | u32 sff0 = readl(mmio_base + QS_HST_SFF); |
| 396 | u32 sff1 = readl(mmio_base + QS_HST_SFF + 4); |
| 397 | u8 sEVLD = (sff1 >> 30) & 0x01; /* valid flag */ |
| 398 | sFFE = sff1 >> 31; /* empty flag */ |
| 399 | |
| 400 | if (sEVLD) { |
| 401 | u8 sDST = sff0 >> 16; /* dev status */ |
| 402 | u8 sHST = sff1 & 0x3f; /* host status */ |
| 403 | unsigned int port_no = (sff1 >> 8) & 0x03; |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 404 | struct ata_port *ap = host->ports[port_no]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 405 | |
| 406 | DPRINTK("SFF=%08x%08x: sCHAN=%u sHST=%d sDST=%02x\n", |
| 407 | sff1, sff0, port_no, sHST, sDST); |
| 408 | handled = 1; |
Jeff Garzik | 029f546 | 2006-04-02 10:30:40 -0400 | [diff] [blame] | 409 | if (ap && !(ap->flags & ATA_FLAG_DISABLED)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 410 | struct ata_queued_cmd *qc; |
| 411 | struct qs_port_priv *pp = ap->private_data; |
| 412 | if (!pp || pp->state != qs_state_pkt) |
| 413 | continue; |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 414 | qc = ata_qc_from_tag(ap, ap->link.active_tag); |
Albert Lee | e50362e | 2005-09-27 17:39:50 +0800 | [diff] [blame] | 415 | if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 416 | switch (sHST) { |
Jeff Garzik | a7dac44 | 2005-10-30 04:44:42 -0500 | [diff] [blame] | 417 | case 0: /* successful CPB */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 418 | case 3: /* device error */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 419 | qs_enter_reg_mode(qc->ap); |
Mark Lord | 6004bda | 2007-11-07 10:54:15 -0500 | [diff] [blame] | 420 | qs_do_or_die(qc, sDST); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 421 | break; |
| 422 | default: |
| 423 | break; |
| 424 | } |
| 425 | } |
| 426 | } |
| 427 | } |
| 428 | } while (!sFFE); |
| 429 | return handled; |
| 430 | } |
| 431 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 432 | static inline unsigned int qs_intr_mmio(struct ata_host *host) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 433 | { |
| 434 | unsigned int handled = 0, port_no; |
| 435 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 436 | for (port_no = 0; port_no < host->n_ports; ++port_no) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 437 | struct ata_port *ap; |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 438 | ap = host->ports[port_no]; |
Tejun Heo | c138950 | 2005-08-22 14:59:24 +0900 | [diff] [blame] | 439 | if (ap && |
Jeff Garzik | 029f546 | 2006-04-02 10:30:40 -0400 | [diff] [blame] | 440 | !(ap->flags & ATA_FLAG_DISABLED)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 441 | struct ata_queued_cmd *qc; |
Mark Lord | 904c7ba | 2007-11-07 10:53:41 -0500 | [diff] [blame] | 442 | struct qs_port_priv *pp; |
| 443 | qc = ata_qc_from_tag(ap, ap->link.active_tag); |
| 444 | if (!qc || !(qc->flags & ATA_QCFLAG_ACTIVE)) { |
| 445 | /* |
| 446 | * The qstor hardware generates spurious |
| 447 | * interrupts from time to time when switching |
| 448 | * in and out of packet mode. |
| 449 | * There's no obvious way to know if we're |
| 450 | * here now due to that, so just ack the irq |
| 451 | * and pretend we knew it was ours.. (ugh). |
| 452 | * This does not affect packet mode. |
| 453 | */ |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 454 | ata_sff_check_status(ap); |
Mark Lord | 904c7ba | 2007-11-07 10:53:41 -0500 | [diff] [blame] | 455 | handled = 1; |
| 456 | continue; |
| 457 | } |
| 458 | pp = ap->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 459 | if (!pp || pp->state != qs_state_mmio) |
| 460 | continue; |
Mark Lord | 904c7ba | 2007-11-07 10:53:41 -0500 | [diff] [blame] | 461 | if (!(qc->tf.flags & ATA_TFLAG_POLLING)) |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 462 | handled |= ata_sff_host_intr(ap, qc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 463 | } |
| 464 | } |
| 465 | return handled; |
| 466 | } |
| 467 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 468 | static irqreturn_t qs_intr(int irq, void *dev_instance) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 469 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 470 | struct ata_host *host = dev_instance; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 471 | unsigned int handled = 0; |
Mark Lord | 904c7ba | 2007-11-07 10:53:41 -0500 | [diff] [blame] | 472 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 473 | |
| 474 | VPRINTK("ENTER\n"); |
| 475 | |
Mark Lord | 904c7ba | 2007-11-07 10:53:41 -0500 | [diff] [blame] | 476 | spin_lock_irqsave(&host->lock, flags); |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 477 | handled = qs_intr_pkt(host) | qs_intr_mmio(host); |
Mark Lord | 904c7ba | 2007-11-07 10:53:41 -0500 | [diff] [blame] | 478 | spin_unlock_irqrestore(&host->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 479 | |
| 480 | VPRINTK("EXIT\n"); |
| 481 | |
| 482 | return IRQ_RETVAL(handled); |
| 483 | } |
| 484 | |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 485 | static void qs_ata_setup_port(struct ata_ioports *port, void __iomem *base) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 486 | { |
| 487 | port->cmd_addr = |
| 488 | port->data_addr = base + 0x400; |
| 489 | port->error_addr = |
| 490 | port->feature_addr = base + 0x408; /* hob_feature = 0x409 */ |
| 491 | port->nsect_addr = base + 0x410; /* hob_nsect = 0x411 */ |
| 492 | port->lbal_addr = base + 0x418; /* hob_lbal = 0x419 */ |
| 493 | port->lbam_addr = base + 0x420; /* hob_lbam = 0x421 */ |
| 494 | port->lbah_addr = base + 0x428; /* hob_lbah = 0x429 */ |
| 495 | port->device_addr = base + 0x430; |
| 496 | port->status_addr = |
| 497 | port->command_addr = base + 0x438; |
| 498 | port->altstatus_addr = |
| 499 | port->ctl_addr = base + 0x440; |
| 500 | port->scr_addr = base + 0xc00; |
| 501 | } |
| 502 | |
| 503 | static int qs_port_start(struct ata_port *ap) |
| 504 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 505 | struct device *dev = ap->host->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 506 | struct qs_port_priv *pp; |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 507 | void __iomem *mmio_base = qs_mmio_base(ap->host); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 508 | void __iomem *chan = mmio_base + (ap->port_no * 0x4000); |
| 509 | u64 addr; |
| 510 | int rc; |
| 511 | |
| 512 | rc = ata_port_start(ap); |
| 513 | if (rc) |
| 514 | return rc; |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 515 | pp = devm_kzalloc(dev, sizeof(*pp), GFP_KERNEL); |
| 516 | if (!pp) |
| 517 | return -ENOMEM; |
| 518 | pp->pkt = dmam_alloc_coherent(dev, QS_PKT_BYTES, &pp->pkt_dma, |
| 519 | GFP_KERNEL); |
| 520 | if (!pp->pkt) |
| 521 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 522 | memset(pp->pkt, 0, QS_PKT_BYTES); |
| 523 | ap->private_data = pp; |
| 524 | |
Mark Lord | 12ee7d3 | 2007-11-07 10:52:55 -0500 | [diff] [blame] | 525 | qs_enter_reg_mode(ap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 526 | addr = (u64)pp->pkt_dma; |
| 527 | writel((u32) addr, chan + QS_CCF_CPBA); |
| 528 | writel((u32)(addr >> 32), chan + QS_CCF_CPBA + 4); |
| 529 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 530 | } |
| 531 | |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 532 | static void qs_host_stop(struct ata_host *host) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 533 | { |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 534 | void __iomem *mmio_base = qs_mmio_base(host); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 535 | |
| 536 | writeb(0, mmio_base + QS_HCT_CTRL); /* disable host interrupts */ |
| 537 | writeb(QS_CNFG3_GSRST, mmio_base + QS_HCF_CNFG3); /* global reset */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 538 | } |
| 539 | |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 540 | static void qs_host_init(struct ata_host *host, unsigned int chip_id) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 541 | { |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 542 | void __iomem *mmio_base = host->iomap[QS_MMIO_BAR]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 543 | unsigned int port_no; |
| 544 | |
| 545 | writeb(0, mmio_base + QS_HCT_CTRL); /* disable host interrupts */ |
| 546 | writeb(QS_CNFG3_GSRST, mmio_base + QS_HCF_CNFG3); /* global reset */ |
| 547 | |
| 548 | /* reset each channel in turn */ |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 549 | for (port_no = 0; port_no < host->n_ports; ++port_no) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 550 | u8 __iomem *chan = mmio_base + (port_no * 0x4000); |
| 551 | writeb(QS_CTR1_RDEV|QS_CTR1_RCHN, chan + QS_CCT_CTR1); |
| 552 | writeb(QS_CTR0_REG, chan + QS_CCT_CTR0); |
| 553 | readb(chan + QS_CCT_CTR0); /* flush */ |
| 554 | } |
| 555 | writeb(QS_SERD3_PHY_ENA, mmio_base + QS_HVS_SERD3); /* enable phy */ |
| 556 | |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 557 | for (port_no = 0; port_no < host->n_ports; ++port_no) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 558 | u8 __iomem *chan = mmio_base + (port_no * 0x4000); |
| 559 | /* set FIFO depths to same settings as Windows driver */ |
| 560 | writew(32, chan + QS_CFC_HUFT); |
| 561 | writew(32, chan + QS_CFC_HDFT); |
| 562 | writew(10, chan + QS_CFC_DUFT); |
| 563 | writew( 8, chan + QS_CFC_DDFT); |
| 564 | /* set CPB size in bytes, as a power of two */ |
| 565 | writeb(QS_CPB_ORDER, chan + QS_CCF_CSEP); |
| 566 | } |
| 567 | writeb(1, mmio_base + QS_HCT_CTRL); /* enable host interrupts */ |
| 568 | } |
| 569 | |
| 570 | /* |
| 571 | * The QStor understands 64-bit buses, and uses 64-bit fields |
| 572 | * for DMA pointers regardless of bus width. We just have to |
| 573 | * make sure our DMA masks are set appropriately for whatever |
| 574 | * bridge lies between us and the QStor, and then the DMA mapping |
| 575 | * code will ensure we only ever "see" appropriate buffer addresses. |
| 576 | * If we're 32-bit limited somewhere, then our 64-bit fields will |
| 577 | * just end up with zeros in the upper 32-bits, without any special |
| 578 | * logic required outside of this routine (below). |
| 579 | */ |
| 580 | static int qs_set_dma_masks(struct pci_dev *pdev, void __iomem *mmio_base) |
| 581 | { |
| 582 | u32 bus_info = readl(mmio_base + QS_HID_HPHY); |
| 583 | int rc, have_64bit_bus = (bus_info & QS_HPHY_64BIT); |
| 584 | |
| 585 | if (have_64bit_bus && |
| 586 | !pci_set_dma_mask(pdev, DMA_64BIT_MASK)) { |
| 587 | rc = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK); |
| 588 | if (rc) { |
| 589 | rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); |
| 590 | if (rc) { |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 591 | dev_printk(KERN_ERR, &pdev->dev, |
| 592 | "64-bit DMA enable failed\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 593 | return rc; |
| 594 | } |
| 595 | } |
| 596 | } else { |
| 597 | rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK); |
| 598 | if (rc) { |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 599 | dev_printk(KERN_ERR, &pdev->dev, |
| 600 | "32-bit DMA enable failed\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 601 | return rc; |
| 602 | } |
| 603 | rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); |
| 604 | if (rc) { |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 605 | dev_printk(KERN_ERR, &pdev->dev, |
| 606 | "32-bit consistent DMA enable failed\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 607 | return rc; |
| 608 | } |
| 609 | } |
| 610 | return 0; |
| 611 | } |
| 612 | |
| 613 | static int qs_ata_init_one(struct pci_dev *pdev, |
| 614 | const struct pci_device_id *ent) |
| 615 | { |
| 616 | static int printed_version; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 617 | unsigned int board_idx = (unsigned int) ent->driver_data; |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 618 | const struct ata_port_info *ppi[] = { &qs_port_info[board_idx], NULL }; |
| 619 | struct ata_host *host; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 620 | int rc, port_no; |
| 621 | |
| 622 | if (!printed_version++) |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 623 | dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 624 | |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 625 | /* alloc host */ |
| 626 | host = ata_host_alloc_pinfo(&pdev->dev, ppi, QS_PORTS); |
| 627 | if (!host) |
| 628 | return -ENOMEM; |
| 629 | |
| 630 | /* acquire resources and fill host */ |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 631 | rc = pcim_enable_device(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 632 | if (rc) |
| 633 | return rc; |
| 634 | |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 635 | if ((pci_resource_flags(pdev, QS_MMIO_BAR) & IORESOURCE_MEM) == 0) |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 636 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 637 | |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 638 | rc = pcim_iomap_regions(pdev, 1 << QS_MMIO_BAR, DRV_NAME); |
| 639 | if (rc) |
| 640 | return rc; |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 641 | host->iomap = pcim_iomap_table(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 642 | |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 643 | rc = qs_set_dma_masks(pdev, host->iomap[QS_MMIO_BAR]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 644 | if (rc) |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 645 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 646 | |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 647 | for (port_no = 0; port_no < host->n_ports; ++port_no) { |
Tejun Heo | cbcdd87 | 2007-08-18 13:14:55 +0900 | [diff] [blame] | 648 | struct ata_port *ap = host->ports[port_no]; |
| 649 | unsigned int offset = port_no * 0x4000; |
| 650 | void __iomem *chan = host->iomap[QS_MMIO_BAR] + offset; |
| 651 | |
| 652 | qs_ata_setup_port(&ap->ioaddr, chan); |
| 653 | |
| 654 | ata_port_pbar_desc(ap, QS_MMIO_BAR, -1, "mmio"); |
| 655 | ata_port_pbar_desc(ap, QS_MMIO_BAR, offset, "port"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 656 | } |
| 657 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 658 | /* initialize adapter */ |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 659 | qs_host_init(host, board_idx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 660 | |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 661 | pci_set_master(pdev); |
| 662 | return ata_host_activate(host, pdev->irq, qs_intr, IRQF_SHARED, |
| 663 | &qs_ata_sht); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 664 | } |
| 665 | |
| 666 | static int __init qs_ata_init(void) |
| 667 | { |
Pavel Roskin | b788719 | 2006-08-10 18:13:18 +0900 | [diff] [blame] | 668 | return pci_register_driver(&qs_ata_pci_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 669 | } |
| 670 | |
| 671 | static void __exit qs_ata_exit(void) |
| 672 | { |
| 673 | pci_unregister_driver(&qs_ata_pci_driver); |
| 674 | } |
| 675 | |
| 676 | MODULE_AUTHOR("Mark Lord"); |
| 677 | MODULE_DESCRIPTION("Pacific Digital Corporation QStor SATA low-level driver"); |
| 678 | MODULE_LICENSE("GPL"); |
| 679 | MODULE_DEVICE_TABLE(pci, qs_ata_pci_tbl); |
| 680 | MODULE_VERSION(DRV_VERSION); |
| 681 | |
| 682 | module_init(qs_ata_init); |
| 683 | module_exit(qs_ata_exit); |