Annotation of qemu/hw/ide/ich.c, revision 1.1.1.3

1.1       root        1: /*
                      2:  * QEMU ICH Emulation
                      3:  *
                      4:  * Copyright (c) 2010 Sebastian Herbszt <[email protected]>
                      5:  * Copyright (c) 2010 Alexander Graf <[email protected]>
                      6:  *
                      7:  * This library is free software; you can redistribute it and/or
                      8:  * modify it under the terms of the GNU Lesser General Public
                      9:  * License as published by the Free Software Foundation; either
                     10:  * version 2 of the License, or (at your option) any later version.
                     11:  *
                     12:  * This library is distributed in the hope that it will be useful,
                     13:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
                     14:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
                     15:  * Lesser General Public License for more details.
                     16:  *
                     17:  * You should have received a copy of the GNU Lesser General Public
                     18:  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
                     19:  *
                     20:  *
                     21:  * lspci dump of a ICH-9 real device
                     22:  *
                     23:  * 00:1f.2 SATA controller [0106]: Intel Corporation 82801IR/IO/IH (ICH9R/DO/DH) 6 port SATA AHCI Controller [8086:2922] (rev 02) (prog-if 01 [AHCI 1.0])
                     24:  *         Subsystem: Intel Corporation 82801IR/IO/IH (ICH9R/DO/DH) 6 port SATA AHCI Controller [8086:2922]
                     25:  *         Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
                     26:  *         Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
                     27:  *         Latency: 0
                     28:  *         Interrupt: pin B routed to IRQ 222
                     29:  *         Region 0: I/O ports at d000 [size=8]
                     30:  *         Region 1: I/O ports at cc00 [size=4]
                     31:  *         Region 2: I/O ports at c880 [size=8]
                     32:  *         Region 3: I/O ports at c800 [size=4]
                     33:  *         Region 4: I/O ports at c480 [size=32]
                     34:  *         Region 5: Memory at febf9000 (32-bit, non-prefetchable) [size=2K]
                     35:  *         Capabilities: [80] Message Signalled Interrupts: Mask- 64bit- Count=1/16 Enable+
                     36:  *                 Address: fee0f00c  Data: 41d9
                     37:  *         Capabilities: [70] Power Management version 3
                     38:  *                 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot+,D3cold-)
                     39:  *                 Status: D0 PME-Enable- DSel=0 DScale=0 PME-
                     40:  *         Capabilities: [a8] SATA HBA <?>
                     41:  *         Capabilities: [b0] Vendor Specific Information <?>
                     42:  *         Kernel driver in use: ahci
                     43:  *         Kernel modules: ahci
                     44:  * 00: 86 80 22 29 07 04 b0 02 02 01 06 01 00 00 00 00
                     45:  * 10: 01 d0 00 00 01 cc 00 00 81 c8 00 00 01 c8 00 00
                     46:  * 20: 81 c4 00 00 00 90 bf fe 00 00 00 00 86 80 22 29
                     47:  * 30: 00 00 00 00 80 00 00 00 00 00 00 00 0f 02 00 00
                     48:  * 40: 00 80 00 80 00 00 00 00 00 00 00 00 00 00 00 00
                     49:  * 50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                     50:  * 60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                     51:  * 70: 01 a8 03 40 08 00 00 00 00 00 00 00 00 00 00 00
                     52:  * 80: 05 70 09 00 0c f0 e0 fe d9 41 00 00 00 00 00 00
                     53:  * 90: 40 00 0f 82 93 01 00 00 00 00 00 00 00 00 00 00
                     54:  * a0: ac 00 00 00 0a 00 12 00 12 b0 10 00 48 00 00 00
                     55:  * b0: 09 00 06 20 00 00 00 00 00 00 00 00 00 00 00 00
                     56:  * c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                     57:  * d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                     58:  * e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                     59:  * f0: 00 00 00 00 00 00 00 00 86 0f 02 00 00 00 00 00
                     60:  *
                     61:  */
                     62: 
                     63: #include <hw/hw.h>
                     64: #include <hw/msi.h>
                     65: #include <hw/pc.h>
                     66: #include <hw/pci.h>
                     67: #include <hw/isa.h>
                     68: #include "block.h"
                     69: #include "dma.h"
                     70: 
                     71: #include <hw/ide/pci.h>
                     72: #include <hw/ide/ahci.h>
                     73: 
1.1.1.3 ! root       74: #define ICH9_SATA_CAP_OFFSET    0xA8
        !            75: 
        !            76: #define ICH9_IDP_BAR            4
        !            77: #define ICH9_MEM_BAR            5
        !            78: 
        !            79: #define ICH9_IDP_INDEX          0x10
        !            80: #define ICH9_IDP_INDEX_LOG2     0x04
        !            81: 
        !            82: static const VMStateDescription vmstate_ahci = {
        !            83:     .name = "ahci",
        !            84:     .unmigratable = 1,
        !            85: };
        !            86: 
1.1       root       87: static int pci_ich9_ahci_init(PCIDevice *dev)
                     88: {
                     89:     struct AHCIPCIState *d;
1.1.1.3 ! root       90:     int sata_cap_offset;
        !            91:     uint8_t *sata_cap;
1.1       root       92:     d = DO_UPCAST(struct AHCIPCIState, card, dev);
                     93: 
1.1.1.2   root       94:     ahci_init(&d->ahci, &dev->qdev, 6);
1.1       root       95: 
                     96:     pci_config_set_prog_interface(d->card.config, AHCI_PROGMODE_MAJOR_REV_1);
                     97: 
                     98:     d->card.config[PCI_CACHE_LINE_SIZE] = 0x08;  /* Cache line size */
                     99:     d->card.config[PCI_LATENCY_TIMER]   = 0x00;  /* Latency timer */
                    100:     pci_config_set_interrupt_pin(d->card.config, 1);
                    101: 
                    102:     /* XXX Software should program this register */
                    103:     d->card.config[0x90]   = 1 << 6; /* Address Map Register - AHCI mode */
                    104: 
                    105:     qemu_register_reset(ahci_reset, d);
                    106: 
                    107:     msi_init(dev, 0x50, 1, true, false);
                    108:     d->ahci.irq = d->card.irq[0];
                    109: 
1.1.1.3 ! root      110:     pci_register_bar(&d->card, ICH9_IDP_BAR, PCI_BASE_ADDRESS_SPACE_IO,
        !           111:                      &d->ahci.idp);
        !           112:     pci_register_bar(&d->card, ICH9_MEM_BAR, PCI_BASE_ADDRESS_SPACE_MEMORY,
        !           113:                      &d->ahci.mem);
        !           114: 
        !           115:     sata_cap_offset = pci_add_capability(&d->card, PCI_CAP_ID_SATA,
        !           116:                                          ICH9_SATA_CAP_OFFSET, SATA_CAP_SIZE);
        !           117:     if (sata_cap_offset < 0) {
        !           118:         return sata_cap_offset;
        !           119:     }
        !           120: 
        !           121:     sata_cap = d->card.config + sata_cap_offset;
        !           122:     pci_set_word(sata_cap + SATA_CAP_REV, 0x10);
        !           123:     pci_set_long(sata_cap + SATA_CAP_BAR,
        !           124:                  (ICH9_IDP_BAR + 0x4) | (ICH9_IDP_INDEX_LOG2 << 4));
        !           125:     d->ahci.idp_offset = ICH9_IDP_INDEX;
1.1.1.2   root      126: 
1.1       root      127:     return 0;
                    128: }
                    129: 
                    130: static int pci_ich9_uninit(PCIDevice *dev)
                    131: {
                    132:     struct AHCIPCIState *d;
                    133:     d = DO_UPCAST(struct AHCIPCIState, card, dev);
                    134: 
1.1.1.2   root      135:     msi_uninit(dev);
1.1       root      136:     qemu_unregister_reset(ahci_reset, d);
                    137:     ahci_uninit(&d->ahci);
                    138: 
                    139:     return 0;
                    140: }
                    141: 
                    142: static void pci_ich9_write_config(PCIDevice *pci, uint32_t addr,
                    143:                                   uint32_t val, int len)
                    144: {
                    145:     pci_default_write_config(pci, addr, val, len);
                    146:     msi_write_config(pci, addr, val, len);
                    147: }
                    148: 
                    149: static PCIDeviceInfo ich_ahci_info[] = {
                    150:     {
                    151:         .qdev.name    = "ich9-ahci",
                    152:         .qdev.alias   = "ahci",
                    153:         .qdev.size    = sizeof(AHCIPCIState),
1.1.1.3 ! root      154:         .qdev.vmsd    = &vmstate_ahci,
1.1       root      155:         .init         = pci_ich9_ahci_init,
                    156:         .exit         = pci_ich9_uninit,
                    157:         .config_write = pci_ich9_write_config,
1.1.1.2   root      158:         .vendor_id    = PCI_VENDOR_ID_INTEL,
                    159:         .device_id    = PCI_DEVICE_ID_INTEL_82801IR,
                    160:         .revision     = 0x02,
                    161:         .class_id     = PCI_CLASS_STORAGE_SATA,
1.1       root      162:     },{
                    163:         /* end of list */
                    164:     }
                    165: };
                    166: 
                    167: static void ich_ahci_register(void)
                    168: {
                    169:     pci_qdev_register_many(ich_ahci_info);
                    170: }
                    171: device_init(ich_ahci_register);

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