Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * sata_nv.c - NVIDIA nForce SATA |
| 3 | * |
| 4 | * Copyright 2004 NVIDIA Corp. All rights reserved. |
| 5 | * Copyright 2004 Andrew Chew |
| 6 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | * |
Jeff Garzik | aa7e16d | 2005-08-29 15:12:56 -0400 | [diff] [blame] | 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2, or (at your option) |
| 11 | * any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; see the file COPYING. If not, write to |
| 20 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 21 | * |
Jeff Garzik | af36d7f | 2005-08-28 20:18:39 -0400 | [diff] [blame] | 22 | * |
| 23 | * libata documentation is available via 'make {ps|pdf}docs', |
| 24 | * as Documentation/DocBook/libata.* |
| 25 | * |
| 26 | * No hardware documentation available outside of NVIDIA. |
| 27 | * This driver programs the NVIDIA SATA controller in a similar |
| 28 | * fashion as with other PCI IDE BMDMA controllers, with a few |
| 29 | * NV-specific details such as register offsets, SATA phy location, |
| 30 | * hotplug info, etc. |
| 31 | * |
Andy Currid | e710245 | 2005-10-07 08:53:39 -0700 | [diff] [blame] | 32 | * 0.09 |
| 33 | * - Fixed bug introduced by 0.08's MCP51 and MCP55 support. |
Jeff Garzik | af36d7f | 2005-08-28 20:18:39 -0400 | [diff] [blame] | 34 | * |
Daniel Drake | 541134c | 2005-07-03 13:44:39 +0100 | [diff] [blame] | 35 | * 0.08 |
| 36 | * - Added support for MCP51 and MCP55. |
| 37 | * |
| 38 | * 0.07 |
| 39 | * - Added support for RAID class code. |
| 40 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | * 0.06 |
| 42 | * - Added generic SATA support by using a pci_device_id that filters on |
| 43 | * the IDE storage class code. |
| 44 | * |
| 45 | * 0.03 |
| 46 | * - Fixed a bug where the hotplug handlers for non-CK804/MCP04 were using |
| 47 | * mmio_base, which is only set for the CK804/MCP04 case. |
| 48 | * |
| 49 | * 0.02 |
| 50 | * - Added support for CK804 SATA controller. |
| 51 | * |
| 52 | * 0.01 |
| 53 | * - Initial revision. |
| 54 | */ |
| 55 | |
| 56 | #include <linux/config.h> |
| 57 | #include <linux/kernel.h> |
| 58 | #include <linux/module.h> |
| 59 | #include <linux/pci.h> |
| 60 | #include <linux/init.h> |
| 61 | #include <linux/blkdev.h> |
| 62 | #include <linux/delay.h> |
| 63 | #include <linux/interrupt.h> |
| 64 | #include "scsi.h" |
| 65 | #include <scsi/scsi_host.h> |
| 66 | #include <linux/libata.h> |
| 67 | |
| 68 | #define DRV_NAME "sata_nv" |
Daniel Drake | 541134c | 2005-07-03 13:44:39 +0100 | [diff] [blame] | 69 | #define DRV_VERSION "0.8" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 70 | |
| 71 | #define NV_PORTS 2 |
| 72 | #define NV_PIO_MASK 0x1f |
| 73 | #define NV_MWDMA_MASK 0x07 |
| 74 | #define NV_UDMA_MASK 0x7f |
| 75 | #define NV_PORT0_SCR_REG_OFFSET 0x00 |
| 76 | #define NV_PORT1_SCR_REG_OFFSET 0x40 |
| 77 | |
| 78 | #define NV_INT_STATUS 0x10 |
| 79 | #define NV_INT_STATUS_CK804 0x440 |
| 80 | #define NV_INT_STATUS_PDEV_INT 0x01 |
| 81 | #define NV_INT_STATUS_PDEV_PM 0x02 |
| 82 | #define NV_INT_STATUS_PDEV_ADDED 0x04 |
| 83 | #define NV_INT_STATUS_PDEV_REMOVED 0x08 |
| 84 | #define NV_INT_STATUS_SDEV_INT 0x10 |
| 85 | #define NV_INT_STATUS_SDEV_PM 0x20 |
| 86 | #define NV_INT_STATUS_SDEV_ADDED 0x40 |
| 87 | #define NV_INT_STATUS_SDEV_REMOVED 0x80 |
| 88 | #define NV_INT_STATUS_PDEV_HOTPLUG (NV_INT_STATUS_PDEV_ADDED | \ |
| 89 | NV_INT_STATUS_PDEV_REMOVED) |
| 90 | #define NV_INT_STATUS_SDEV_HOTPLUG (NV_INT_STATUS_SDEV_ADDED | \ |
| 91 | NV_INT_STATUS_SDEV_REMOVED) |
| 92 | #define NV_INT_STATUS_HOTPLUG (NV_INT_STATUS_PDEV_HOTPLUG | \ |
| 93 | NV_INT_STATUS_SDEV_HOTPLUG) |
| 94 | |
| 95 | #define NV_INT_ENABLE 0x11 |
| 96 | #define NV_INT_ENABLE_CK804 0x441 |
| 97 | #define NV_INT_ENABLE_PDEV_MASK 0x01 |
| 98 | #define NV_INT_ENABLE_PDEV_PM 0x02 |
| 99 | #define NV_INT_ENABLE_PDEV_ADDED 0x04 |
| 100 | #define NV_INT_ENABLE_PDEV_REMOVED 0x08 |
| 101 | #define NV_INT_ENABLE_SDEV_MASK 0x10 |
| 102 | #define NV_INT_ENABLE_SDEV_PM 0x20 |
| 103 | #define NV_INT_ENABLE_SDEV_ADDED 0x40 |
| 104 | #define NV_INT_ENABLE_SDEV_REMOVED 0x80 |
| 105 | #define NV_INT_ENABLE_PDEV_HOTPLUG (NV_INT_ENABLE_PDEV_ADDED | \ |
| 106 | NV_INT_ENABLE_PDEV_REMOVED) |
| 107 | #define NV_INT_ENABLE_SDEV_HOTPLUG (NV_INT_ENABLE_SDEV_ADDED | \ |
| 108 | NV_INT_ENABLE_SDEV_REMOVED) |
| 109 | #define NV_INT_ENABLE_HOTPLUG (NV_INT_ENABLE_PDEV_HOTPLUG | \ |
| 110 | NV_INT_ENABLE_SDEV_HOTPLUG) |
| 111 | |
| 112 | #define NV_INT_CONFIG 0x12 |
| 113 | #define NV_INT_CONFIG_METHD 0x01 // 0 = INT, 1 = SMI |
| 114 | |
| 115 | // For PCI config register 20 |
| 116 | #define NV_MCP_SATA_CFG_20 0x50 |
| 117 | #define NV_MCP_SATA_CFG_20_SATA_SPACE_EN 0x04 |
| 118 | |
| 119 | static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent); |
| 120 | static irqreturn_t nv_interrupt (int irq, void *dev_instance, |
| 121 | struct pt_regs *regs); |
| 122 | static u32 nv_scr_read (struct ata_port *ap, unsigned int sc_reg); |
| 123 | static void nv_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val); |
| 124 | static void nv_host_stop (struct ata_host_set *host_set); |
| 125 | static void nv_enable_hotplug(struct ata_probe_ent *probe_ent); |
| 126 | static void nv_disable_hotplug(struct ata_host_set *host_set); |
| 127 | static void nv_check_hotplug(struct ata_host_set *host_set); |
| 128 | static void nv_enable_hotplug_ck804(struct ata_probe_ent *probe_ent); |
| 129 | static void nv_disable_hotplug_ck804(struct ata_host_set *host_set); |
| 130 | static void nv_check_hotplug_ck804(struct ata_host_set *host_set); |
| 131 | |
| 132 | enum nv_host_type |
| 133 | { |
| 134 | GENERIC, |
| 135 | NFORCE2, |
| 136 | NFORCE3, |
Andy Currid | e710245 | 2005-10-07 08:53:39 -0700 | [diff] [blame] | 137 | CK804 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | }; |
| 139 | |
| 140 | static struct pci_device_id nv_pci_tbl[] = { |
| 141 | { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2S_SATA, |
| 142 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, NFORCE2 }, |
| 143 | { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3S_SATA, |
| 144 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, NFORCE3 }, |
| 145 | { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3S_SATA2, |
| 146 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, NFORCE3 }, |
| 147 | { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_CK804_SATA, |
| 148 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, CK804 }, |
| 149 | { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_CK804_SATA2, |
| 150 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, CK804 }, |
| 151 | { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP04_SATA, |
| 152 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, CK804 }, |
| 153 | { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP04_SATA2, |
| 154 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, CK804 }, |
Daniel Drake | 541134c | 2005-07-03 13:44:39 +0100 | [diff] [blame] | 155 | { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP51_SATA, |
Andy Currid | e710245 | 2005-10-07 08:53:39 -0700 | [diff] [blame] | 156 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, GENERIC }, |
Daniel Drake | 541134c | 2005-07-03 13:44:39 +0100 | [diff] [blame] | 157 | { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP51_SATA2, |
Andy Currid | e710245 | 2005-10-07 08:53:39 -0700 | [diff] [blame] | 158 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, GENERIC }, |
Daniel Drake | 541134c | 2005-07-03 13:44:39 +0100 | [diff] [blame] | 159 | { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP55_SATA, |
Andy Currid | e710245 | 2005-10-07 08:53:39 -0700 | [diff] [blame] | 160 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, GENERIC }, |
Andy Currid | e86ee66 | 2005-09-19 06:17:52 -0700 | [diff] [blame] | 161 | { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP55_SATA2, |
Andy Currid | e710245 | 2005-10-07 08:53:39 -0700 | [diff] [blame] | 162 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, GENERIC }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 163 | { PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, |
| 164 | PCI_ANY_ID, PCI_ANY_ID, |
| 165 | PCI_CLASS_STORAGE_IDE<<8, 0xffff00, GENERIC }, |
Daniel Drake | 541134c | 2005-07-03 13:44:39 +0100 | [diff] [blame] | 166 | { PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, |
| 167 | PCI_ANY_ID, PCI_ANY_ID, |
| 168 | PCI_CLASS_STORAGE_RAID<<8, 0xffff00, GENERIC }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 169 | { 0, } /* terminate list */ |
| 170 | }; |
| 171 | |
| 172 | #define NV_HOST_FLAGS_SCR_MMIO 0x00000001 |
| 173 | |
| 174 | struct nv_host_desc |
| 175 | { |
| 176 | enum nv_host_type host_type; |
| 177 | void (*enable_hotplug)(struct ata_probe_ent *probe_ent); |
| 178 | void (*disable_hotplug)(struct ata_host_set *host_set); |
| 179 | void (*check_hotplug)(struct ata_host_set *host_set); |
| 180 | |
| 181 | }; |
| 182 | static struct nv_host_desc nv_device_tbl[] = { |
| 183 | { |
| 184 | .host_type = GENERIC, |
| 185 | .enable_hotplug = NULL, |
| 186 | .disable_hotplug= NULL, |
| 187 | .check_hotplug = NULL, |
| 188 | }, |
| 189 | { |
| 190 | .host_type = NFORCE2, |
| 191 | .enable_hotplug = nv_enable_hotplug, |
| 192 | .disable_hotplug= nv_disable_hotplug, |
| 193 | .check_hotplug = nv_check_hotplug, |
| 194 | }, |
| 195 | { |
| 196 | .host_type = NFORCE3, |
| 197 | .enable_hotplug = nv_enable_hotplug, |
| 198 | .disable_hotplug= nv_disable_hotplug, |
| 199 | .check_hotplug = nv_check_hotplug, |
| 200 | }, |
| 201 | { .host_type = CK804, |
| 202 | .enable_hotplug = nv_enable_hotplug_ck804, |
| 203 | .disable_hotplug= nv_disable_hotplug_ck804, |
| 204 | .check_hotplug = nv_check_hotplug_ck804, |
| 205 | }, |
| 206 | }; |
| 207 | |
| 208 | struct nv_host |
| 209 | { |
| 210 | struct nv_host_desc *host_desc; |
| 211 | unsigned long host_flags; |
| 212 | }; |
| 213 | |
| 214 | static struct pci_driver nv_pci_driver = { |
| 215 | .name = DRV_NAME, |
| 216 | .id_table = nv_pci_tbl, |
| 217 | .probe = nv_init_one, |
| 218 | .remove = ata_pci_remove_one, |
| 219 | }; |
| 220 | |
| 221 | static Scsi_Host_Template nv_sht = { |
| 222 | .module = THIS_MODULE, |
| 223 | .name = DRV_NAME, |
| 224 | .ioctl = ata_scsi_ioctl, |
| 225 | .queuecommand = ata_scsi_queuecmd, |
| 226 | .eh_strategy_handler = ata_scsi_error, |
| 227 | .can_queue = ATA_DEF_QUEUE, |
| 228 | .this_id = ATA_SHT_THIS_ID, |
| 229 | .sg_tablesize = LIBATA_MAX_PRD, |
| 230 | .max_sectors = ATA_MAX_SECTORS, |
| 231 | .cmd_per_lun = ATA_SHT_CMD_PER_LUN, |
| 232 | .emulated = ATA_SHT_EMULATED, |
| 233 | .use_clustering = ATA_SHT_USE_CLUSTERING, |
| 234 | .proc_name = DRV_NAME, |
| 235 | .dma_boundary = ATA_DMA_BOUNDARY, |
| 236 | .slave_configure = ata_scsi_slave_config, |
| 237 | .bios_param = ata_std_bios_param, |
| 238 | .ordered_flush = 1, |
| 239 | }; |
| 240 | |
| 241 | static struct ata_port_operations nv_ops = { |
| 242 | .port_disable = ata_port_disable, |
| 243 | .tf_load = ata_tf_load, |
| 244 | .tf_read = ata_tf_read, |
| 245 | .exec_command = ata_exec_command, |
| 246 | .check_status = ata_check_status, |
| 247 | .dev_select = ata_std_dev_select, |
| 248 | .phy_reset = sata_phy_reset, |
| 249 | .bmdma_setup = ata_bmdma_setup, |
| 250 | .bmdma_start = ata_bmdma_start, |
| 251 | .bmdma_stop = ata_bmdma_stop, |
| 252 | .bmdma_status = ata_bmdma_status, |
| 253 | .qc_prep = ata_qc_prep, |
| 254 | .qc_issue = ata_qc_issue_prot, |
| 255 | .eng_timeout = ata_eng_timeout, |
| 256 | .irq_handler = nv_interrupt, |
| 257 | .irq_clear = ata_bmdma_irq_clear, |
| 258 | .scr_read = nv_scr_read, |
| 259 | .scr_write = nv_scr_write, |
| 260 | .port_start = ata_port_start, |
| 261 | .port_stop = ata_port_stop, |
| 262 | .host_stop = nv_host_stop, |
| 263 | }; |
| 264 | |
| 265 | /* FIXME: The hardware provides the necessary SATA PHY controls |
| 266 | * to support ATA_FLAG_SATA_RESET. However, it is currently |
| 267 | * necessary to disable that flag, to solve misdetection problems. |
| 268 | * See http://bugme.osdl.org/show_bug.cgi?id=3352 for more info. |
| 269 | * |
| 270 | * This problem really needs to be investigated further. But in the |
| 271 | * meantime, we avoid ATA_FLAG_SATA_RESET to get people working. |
| 272 | */ |
| 273 | static struct ata_port_info nv_port_info = { |
| 274 | .sht = &nv_sht, |
| 275 | .host_flags = ATA_FLAG_SATA | |
| 276 | /* ATA_FLAG_SATA_RESET | */ |
| 277 | ATA_FLAG_SRST | |
| 278 | ATA_FLAG_NO_LEGACY, |
| 279 | .pio_mask = NV_PIO_MASK, |
| 280 | .mwdma_mask = NV_MWDMA_MASK, |
| 281 | .udma_mask = NV_UDMA_MASK, |
| 282 | .port_ops = &nv_ops, |
| 283 | }; |
| 284 | |
| 285 | MODULE_AUTHOR("NVIDIA"); |
| 286 | MODULE_DESCRIPTION("low-level driver for NVIDIA nForce SATA controller"); |
| 287 | MODULE_LICENSE("GPL"); |
| 288 | MODULE_DEVICE_TABLE(pci, nv_pci_tbl); |
| 289 | MODULE_VERSION(DRV_VERSION); |
| 290 | |
| 291 | static irqreturn_t nv_interrupt (int irq, void *dev_instance, |
| 292 | struct pt_regs *regs) |
| 293 | { |
| 294 | struct ata_host_set *host_set = dev_instance; |
| 295 | struct nv_host *host = host_set->private_data; |
| 296 | unsigned int i; |
| 297 | unsigned int handled = 0; |
| 298 | unsigned long flags; |
| 299 | |
| 300 | spin_lock_irqsave(&host_set->lock, flags); |
| 301 | |
| 302 | for (i = 0; i < host_set->n_ports; i++) { |
| 303 | struct ata_port *ap; |
| 304 | |
| 305 | ap = host_set->ports[i]; |
Tejun Heo | c138950 | 2005-08-22 14:59:24 +0900 | [diff] [blame] | 306 | if (ap && |
| 307 | !(ap->flags & (ATA_FLAG_PORT_DISABLED | ATA_FLAG_NOINTR))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 308 | struct ata_queued_cmd *qc; |
| 309 | |
| 310 | qc = ata_qc_from_tag(ap, ap->active_tag); |
| 311 | if (qc && (!(qc->tf.ctl & ATA_NIEN))) |
| 312 | handled += ata_host_intr(ap, qc); |
| 313 | } |
| 314 | |
| 315 | } |
| 316 | |
| 317 | if (host->host_desc->check_hotplug) |
| 318 | host->host_desc->check_hotplug(host_set); |
| 319 | |
| 320 | spin_unlock_irqrestore(&host_set->lock, flags); |
| 321 | |
| 322 | return IRQ_RETVAL(handled); |
| 323 | } |
| 324 | |
| 325 | static u32 nv_scr_read (struct ata_port *ap, unsigned int sc_reg) |
| 326 | { |
| 327 | struct ata_host_set *host_set = ap->host_set; |
| 328 | struct nv_host *host = host_set->private_data; |
| 329 | |
| 330 | if (sc_reg > SCR_CONTROL) |
| 331 | return 0xffffffffU; |
| 332 | |
| 333 | if (host->host_flags & NV_HOST_FLAGS_SCR_MMIO) |
Al Viro | 9ee0c0a | 2005-10-21 06:46:02 +0100 | [diff] [blame] | 334 | return readl((void __iomem *)ap->ioaddr.scr_addr + (sc_reg * 4)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | else |
| 336 | return inl(ap->ioaddr.scr_addr + (sc_reg * 4)); |
| 337 | } |
| 338 | |
| 339 | static void nv_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val) |
| 340 | { |
| 341 | struct ata_host_set *host_set = ap->host_set; |
| 342 | struct nv_host *host = host_set->private_data; |
| 343 | |
| 344 | if (sc_reg > SCR_CONTROL) |
| 345 | return; |
| 346 | |
| 347 | if (host->host_flags & NV_HOST_FLAGS_SCR_MMIO) |
Al Viro | 9ee0c0a | 2005-10-21 06:46:02 +0100 | [diff] [blame] | 348 | writel(val, (void __iomem *)ap->ioaddr.scr_addr + (sc_reg * 4)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 349 | else |
| 350 | outl(val, ap->ioaddr.scr_addr + (sc_reg * 4)); |
| 351 | } |
| 352 | |
| 353 | static void nv_host_stop (struct ata_host_set *host_set) |
| 354 | { |
| 355 | struct nv_host *host = host_set->private_data; |
Jeff Garzik | 374b187 | 2005-08-30 05:42:52 -0400 | [diff] [blame] | 356 | struct pci_dev *pdev = to_pci_dev(host_set->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 357 | |
| 358 | // Disable hotplug event interrupts. |
| 359 | if (host->host_desc->disable_hotplug) |
| 360 | host->host_desc->disable_hotplug(host_set); |
| 361 | |
| 362 | kfree(host); |
Jeff Garzik | aa8f0dc | 2005-05-26 21:54:27 -0400 | [diff] [blame] | 363 | |
Jeff Garzik | 374b187 | 2005-08-30 05:42:52 -0400 | [diff] [blame] | 364 | if (host_set->mmio_base) |
| 365 | pci_iounmap(pdev, host_set->mmio_base); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 366 | } |
| 367 | |
| 368 | static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) |
| 369 | { |
| 370 | static int printed_version = 0; |
| 371 | struct nv_host *host; |
| 372 | struct ata_port_info *ppi; |
| 373 | struct ata_probe_ent *probe_ent; |
| 374 | int pci_dev_busy = 0; |
| 375 | int rc; |
| 376 | u32 bar; |
| 377 | |
| 378 | // Make sure this is a SATA controller by counting the number of bars |
| 379 | // (NVIDIA SATA controllers will always have six bars). Otherwise, |
| 380 | // it's an IDE controller and we ignore it. |
| 381 | for (bar=0; bar<6; bar++) |
| 382 | if (pci_resource_start(pdev, bar) == 0) |
| 383 | return -ENODEV; |
| 384 | |
| 385 | if (!printed_version++) |
| 386 | printk(KERN_DEBUG DRV_NAME " version " DRV_VERSION "\n"); |
| 387 | |
| 388 | rc = pci_enable_device(pdev); |
| 389 | if (rc) |
| 390 | goto err_out; |
| 391 | |
| 392 | rc = pci_request_regions(pdev, DRV_NAME); |
| 393 | if (rc) { |
| 394 | pci_dev_busy = 1; |
| 395 | goto err_out_disable; |
| 396 | } |
| 397 | |
| 398 | rc = pci_set_dma_mask(pdev, ATA_DMA_MASK); |
| 399 | if (rc) |
| 400 | goto err_out_regions; |
| 401 | rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK); |
| 402 | if (rc) |
| 403 | goto err_out_regions; |
| 404 | |
| 405 | rc = -ENOMEM; |
| 406 | |
| 407 | ppi = &nv_port_info; |
Alan Cox | 47a8659 | 2005-10-04 08:09:19 -0400 | [diff] [blame] | 408 | probe_ent = ata_pci_init_native_mode(pdev, &ppi, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 409 | if (!probe_ent) |
| 410 | goto err_out_regions; |
| 411 | |
| 412 | host = kmalloc(sizeof(struct nv_host), GFP_KERNEL); |
| 413 | if (!host) |
| 414 | goto err_out_free_ent; |
| 415 | |
| 416 | memset(host, 0, sizeof(struct nv_host)); |
| 417 | host->host_desc = &nv_device_tbl[ent->driver_data]; |
| 418 | |
| 419 | probe_ent->private_data = host; |
| 420 | |
| 421 | if (pci_resource_flags(pdev, 5) & IORESOURCE_MEM) |
| 422 | host->host_flags |= NV_HOST_FLAGS_SCR_MMIO; |
| 423 | |
| 424 | if (host->host_flags & NV_HOST_FLAGS_SCR_MMIO) { |
| 425 | unsigned long base; |
| 426 | |
Jeff Garzik | 374b187 | 2005-08-30 05:42:52 -0400 | [diff] [blame] | 427 | probe_ent->mmio_base = pci_iomap(pdev, 5, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 428 | if (probe_ent->mmio_base == NULL) { |
| 429 | rc = -EIO; |
| 430 | goto err_out_free_host; |
| 431 | } |
| 432 | |
| 433 | base = (unsigned long)probe_ent->mmio_base; |
| 434 | |
| 435 | probe_ent->port[0].scr_addr = |
| 436 | base + NV_PORT0_SCR_REG_OFFSET; |
| 437 | probe_ent->port[1].scr_addr = |
| 438 | base + NV_PORT1_SCR_REG_OFFSET; |
| 439 | } else { |
| 440 | |
| 441 | probe_ent->port[0].scr_addr = |
| 442 | pci_resource_start(pdev, 5) | NV_PORT0_SCR_REG_OFFSET; |
| 443 | probe_ent->port[1].scr_addr = |
| 444 | pci_resource_start(pdev, 5) | NV_PORT1_SCR_REG_OFFSET; |
| 445 | } |
| 446 | |
| 447 | pci_set_master(pdev); |
| 448 | |
| 449 | rc = ata_device_add(probe_ent); |
| 450 | if (rc != NV_PORTS) |
| 451 | goto err_out_iounmap; |
| 452 | |
| 453 | // Enable hotplug event interrupts. |
| 454 | if (host->host_desc->enable_hotplug) |
| 455 | host->host_desc->enable_hotplug(probe_ent); |
| 456 | |
| 457 | kfree(probe_ent); |
| 458 | |
| 459 | return 0; |
| 460 | |
| 461 | err_out_iounmap: |
| 462 | if (host->host_flags & NV_HOST_FLAGS_SCR_MMIO) |
Jeff Garzik | 374b187 | 2005-08-30 05:42:52 -0400 | [diff] [blame] | 463 | pci_iounmap(pdev, probe_ent->mmio_base); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 464 | err_out_free_host: |
| 465 | kfree(host); |
| 466 | err_out_free_ent: |
| 467 | kfree(probe_ent); |
| 468 | err_out_regions: |
| 469 | pci_release_regions(pdev); |
| 470 | err_out_disable: |
| 471 | if (!pci_dev_busy) |
| 472 | pci_disable_device(pdev); |
| 473 | err_out: |
| 474 | return rc; |
| 475 | } |
| 476 | |
| 477 | static void nv_enable_hotplug(struct ata_probe_ent *probe_ent) |
| 478 | { |
| 479 | u8 intr_mask; |
| 480 | |
| 481 | outb(NV_INT_STATUS_HOTPLUG, |
| 482 | probe_ent->port[0].scr_addr + NV_INT_STATUS); |
| 483 | |
| 484 | intr_mask = inb(probe_ent->port[0].scr_addr + NV_INT_ENABLE); |
| 485 | intr_mask |= NV_INT_ENABLE_HOTPLUG; |
| 486 | |
| 487 | outb(intr_mask, probe_ent->port[0].scr_addr + NV_INT_ENABLE); |
| 488 | } |
| 489 | |
| 490 | static void nv_disable_hotplug(struct ata_host_set *host_set) |
| 491 | { |
| 492 | u8 intr_mask; |
| 493 | |
| 494 | intr_mask = inb(host_set->ports[0]->ioaddr.scr_addr + NV_INT_ENABLE); |
| 495 | |
| 496 | intr_mask &= ~(NV_INT_ENABLE_HOTPLUG); |
| 497 | |
| 498 | outb(intr_mask, host_set->ports[0]->ioaddr.scr_addr + NV_INT_ENABLE); |
| 499 | } |
| 500 | |
| 501 | static void nv_check_hotplug(struct ata_host_set *host_set) |
| 502 | { |
| 503 | u8 intr_status; |
| 504 | |
| 505 | intr_status = inb(host_set->ports[0]->ioaddr.scr_addr + NV_INT_STATUS); |
| 506 | |
| 507 | // Clear interrupt status. |
| 508 | outb(0xff, host_set->ports[0]->ioaddr.scr_addr + NV_INT_STATUS); |
| 509 | |
| 510 | if (intr_status & NV_INT_STATUS_HOTPLUG) { |
| 511 | if (intr_status & NV_INT_STATUS_PDEV_ADDED) |
| 512 | printk(KERN_WARNING "nv_sata: " |
| 513 | "Primary device added\n"); |
| 514 | |
| 515 | if (intr_status & NV_INT_STATUS_PDEV_REMOVED) |
| 516 | printk(KERN_WARNING "nv_sata: " |
| 517 | "Primary device removed\n"); |
| 518 | |
| 519 | if (intr_status & NV_INT_STATUS_SDEV_ADDED) |
| 520 | printk(KERN_WARNING "nv_sata: " |
| 521 | "Secondary device added\n"); |
| 522 | |
| 523 | if (intr_status & NV_INT_STATUS_SDEV_REMOVED) |
| 524 | printk(KERN_WARNING "nv_sata: " |
| 525 | "Secondary device removed\n"); |
| 526 | } |
| 527 | } |
| 528 | |
| 529 | static void nv_enable_hotplug_ck804(struct ata_probe_ent *probe_ent) |
| 530 | { |
| 531 | struct pci_dev *pdev = to_pci_dev(probe_ent->dev); |
| 532 | u8 intr_mask; |
| 533 | u8 regval; |
| 534 | |
| 535 | pci_read_config_byte(pdev, NV_MCP_SATA_CFG_20, ®val); |
| 536 | regval |= NV_MCP_SATA_CFG_20_SATA_SPACE_EN; |
| 537 | pci_write_config_byte(pdev, NV_MCP_SATA_CFG_20, regval); |
| 538 | |
| 539 | writeb(NV_INT_STATUS_HOTPLUG, probe_ent->mmio_base + NV_INT_STATUS_CK804); |
| 540 | |
| 541 | intr_mask = readb(probe_ent->mmio_base + NV_INT_ENABLE_CK804); |
| 542 | intr_mask |= NV_INT_ENABLE_HOTPLUG; |
| 543 | |
| 544 | writeb(intr_mask, probe_ent->mmio_base + NV_INT_ENABLE_CK804); |
| 545 | } |
| 546 | |
| 547 | static void nv_disable_hotplug_ck804(struct ata_host_set *host_set) |
| 548 | { |
| 549 | struct pci_dev *pdev = to_pci_dev(host_set->dev); |
| 550 | u8 intr_mask; |
| 551 | u8 regval; |
| 552 | |
| 553 | intr_mask = readb(host_set->mmio_base + NV_INT_ENABLE_CK804); |
| 554 | |
| 555 | intr_mask &= ~(NV_INT_ENABLE_HOTPLUG); |
| 556 | |
| 557 | writeb(intr_mask, host_set->mmio_base + NV_INT_ENABLE_CK804); |
| 558 | |
| 559 | pci_read_config_byte(pdev, NV_MCP_SATA_CFG_20, ®val); |
| 560 | regval &= ~NV_MCP_SATA_CFG_20_SATA_SPACE_EN; |
| 561 | pci_write_config_byte(pdev, NV_MCP_SATA_CFG_20, regval); |
| 562 | } |
| 563 | |
| 564 | static void nv_check_hotplug_ck804(struct ata_host_set *host_set) |
| 565 | { |
| 566 | u8 intr_status; |
| 567 | |
| 568 | intr_status = readb(host_set->mmio_base + NV_INT_STATUS_CK804); |
| 569 | |
| 570 | // Clear interrupt status. |
| 571 | writeb(0xff, host_set->mmio_base + NV_INT_STATUS_CK804); |
| 572 | |
| 573 | if (intr_status & NV_INT_STATUS_HOTPLUG) { |
| 574 | if (intr_status & NV_INT_STATUS_PDEV_ADDED) |
| 575 | printk(KERN_WARNING "nv_sata: " |
| 576 | "Primary device added\n"); |
| 577 | |
| 578 | if (intr_status & NV_INT_STATUS_PDEV_REMOVED) |
| 579 | printk(KERN_WARNING "nv_sata: " |
| 580 | "Primary device removed\n"); |
| 581 | |
| 582 | if (intr_status & NV_INT_STATUS_SDEV_ADDED) |
| 583 | printk(KERN_WARNING "nv_sata: " |
| 584 | "Secondary device added\n"); |
| 585 | |
| 586 | if (intr_status & NV_INT_STATUS_SDEV_REMOVED) |
| 587 | printk(KERN_WARNING "nv_sata: " |
| 588 | "Secondary device removed\n"); |
| 589 | } |
| 590 | } |
| 591 | |
| 592 | static int __init nv_init(void) |
| 593 | { |
| 594 | return pci_module_init(&nv_pci_driver); |
| 595 | } |
| 596 | |
| 597 | static void __exit nv_exit(void) |
| 598 | { |
| 599 | pci_unregister_driver(&nv_pci_driver); |
| 600 | } |
| 601 | |
| 602 | module_init(nv_init); |
| 603 | module_exit(nv_exit); |