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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 | /* * sata_uli.c - ULi Electronics SATA * * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2, or (at your option) * any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; see the file COPYING. If not, write to * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. * * * libata documentation is available via 'make {ps|pdf}docs', * as Documentation/DocBook/libata.* * * Hardware documentation available under NDA. * */ #include <linux/kernel.h> #include <linux/module.h> #include <linux/gfp.h> #include <linux/pci.h> #include <linux/init.h> #include <linux/blkdev.h> #include <linux/delay.h> #include <linux/interrupt.h> #include <linux/device.h> #include <scsi/scsi_host.h> #include <linux/libata.h> #define DRV_NAME "sata_uli" #define DRV_VERSION "1.3" enum { uli_5289 = 0, uli_5287 = 1, uli_5281 = 2, uli_max_ports = 4, /* PCI configuration registers */ ULI5287_BASE = 0x90, /* sata0 phy SCR registers */ ULI5287_OFFS = 0x10, /* offset from sata0->sata1 phy regs */ ULI5281_BASE = 0x60, /* sata0 phy SCR registers */ ULI5281_OFFS = 0x60, /* offset from sata0->sata1 phy regs */ }; struct uli_priv { unsigned int scr_cfg_addr[uli_max_ports]; }; static int uli_init_one(struct pci_dev *pdev, const struct pci_device_id *ent); static int uli_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val); static int uli_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val); static const struct pci_device_id uli_pci_tbl[] = { { PCI_VDEVICE(AL, 0x5289), uli_5289 }, { PCI_VDEVICE(AL, 0x5287), uli_5287 }, { PCI_VDEVICE(AL, 0x5281), uli_5281 }, { } /* terminate list */ }; static struct pci_driver uli_pci_driver = { .name = DRV_NAME, .id_table = uli_pci_tbl, .probe = uli_init_one, .remove = ata_pci_remove_one, }; static struct scsi_host_template uli_sht = { ATA_BMDMA_SHT(DRV_NAME), }; static struct ata_port_operations uli_ops = { .inherits = &ata_bmdma_port_ops, .scr_read = uli_scr_read, .scr_write = uli_scr_write, .hardreset = ATA_OP_NULL, }; static const struct ata_port_info uli_port_info = { .flags = ATA_FLAG_SATA | ATA_FLAG_IGN_SIMPLEX, .pio_mask = ATA_PIO4, .udma_mask = ATA_UDMA6, .port_ops = &uli_ops, }; MODULE_AUTHOR("Peer Chen"); MODULE_DESCRIPTION("low-level driver for ULi Electronics SATA controller"); MODULE_LICENSE("GPL"); MODULE_DEVICE_TABLE(pci, uli_pci_tbl); MODULE_VERSION(DRV_VERSION); static unsigned int get_scr_cfg_addr(struct ata_port *ap, unsigned int sc_reg) { struct uli_priv *hpriv = ap->host->private_data; return hpriv->scr_cfg_addr[ap->port_no] + (4 * sc_reg); } static u32 uli_scr_cfg_read(struct ata_link *link, unsigned int sc_reg) { struct pci_dev *pdev = to_pci_dev(link->ap->host->dev); unsigned int cfg_addr = get_scr_cfg_addr(link->ap, sc_reg); u32 val; pci_read_config_dword(pdev, cfg_addr, &val); return val; } static void uli_scr_cfg_write(struct ata_link *link, unsigned int scr, u32 val) { struct pci_dev *pdev = to_pci_dev(link->ap->host->dev); unsigned int cfg_addr = get_scr_cfg_addr(link->ap, scr); pci_write_config_dword(pdev, cfg_addr, val); } static int uli_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val) { if (sc_reg > SCR_CONTROL) return -EINVAL; *val = uli_scr_cfg_read(link, sc_reg); return 0; } static int uli_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val) { if (sc_reg > SCR_CONTROL) //SCR_CONTROL=2, SCR_ERROR=1, SCR_STATUS=0 return -EINVAL; uli_scr_cfg_write(link, sc_reg, val); return 0; } static int uli_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) { const struct ata_port_info *ppi[] = { &uli_port_info, NULL }; unsigned int board_idx = (unsigned int) ent->driver_data; struct ata_host *host; struct uli_priv *hpriv; void __iomem * const *iomap; struct ata_ioports *ioaddr; int n_ports, rc; ata_print_version_once(&pdev->dev, DRV_VERSION); rc = pcim_enable_device(pdev); if (rc) return rc; n_ports = 2; if (board_idx == uli_5287) n_ports = 4; /* allocate the host */ host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports); if (!host) return -ENOMEM; hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL); if (!hpriv) return -ENOMEM; host->private_data = hpriv; /* the first two ports are standard SFF */ rc = ata_pci_sff_init_host(host); if (rc) return rc; ata_pci_bmdma_init(host); iomap = host->iomap; switch (board_idx) { case uli_5287: /* If there are four, the last two live right after * the standard SFF ports. */ hpriv->scr_cfg_addr[0] = ULI5287_BASE; hpriv->scr_cfg_addr[1] = ULI5287_BASE + ULI5287_OFFS; ioaddr = &host->ports[2]->ioaddr; ioaddr->cmd_addr = iomap[0] + 8; ioaddr->altstatus_addr = ioaddr->ctl_addr = (void __iomem *) ((unsigned long)iomap[1] | ATA_PCI_CTL_OFS) + 4; ioaddr->bmdma_addr = iomap[4] + 16; hpriv->scr_cfg_addr[2] = ULI5287_BASE + ULI5287_OFFS*4; ata_sff_std_ports(ioaddr); ata_port_desc(host->ports[2], "cmd 0x%llx ctl 0x%llx bmdma 0x%llx", (unsigned long long)pci_resource_start(pdev, 0) + 8, ((unsigned long long)pci_resource_start(pdev, 1) | ATA_PCI_CTL_OFS) + 4, (unsigned long long)pci_resource_start(pdev, 4) + 16); ioaddr = &host->ports[3]->ioaddr; ioaddr->cmd_addr = iomap[2] + 8; ioaddr->altstatus_addr = ioaddr->ctl_addr = (void __iomem *) ((unsigned long)iomap[3] | ATA_PCI_CTL_OFS) + 4; ioaddr->bmdma_addr = iomap[4] + 24; hpriv->scr_cfg_addr[3] = ULI5287_BASE + ULI5287_OFFS*5; ata_sff_std_ports(ioaddr); ata_port_desc(host->ports[2], "cmd 0x%llx ctl 0x%llx bmdma 0x%llx", (unsigned long long)pci_resource_start(pdev, 2) + 9, ((unsigned long long)pci_resource_start(pdev, 3) | ATA_PCI_CTL_OFS) + 4, (unsigned long long)pci_resource_start(pdev, 4) + 24); break; case uli_5289: hpriv->scr_cfg_addr[0] = ULI5287_BASE; hpriv->scr_cfg_addr[1] = ULI5287_BASE + ULI5287_OFFS; break; case uli_5281: hpriv->scr_cfg_addr[0] = ULI5281_BASE; hpriv->scr_cfg_addr[1] = ULI5281_BASE + ULI5281_OFFS; break; default: BUG(); break; } pci_set_master(pdev); pci_intx(pdev, 1); return ata_host_activate(host, pdev->irq, ata_bmdma_interrupt, IRQF_SHARED, &uli_sht); } static int __init uli_init(void) { return pci_register_driver(&uli_pci_driver); } static void __exit uli_exit(void) { pci_unregister_driver(&uli_pci_driver); } module_init(uli_init); module_exit(uli_exit); |