Annotation of qemu/hw/ide/ich.c, revision 1.1.1.1

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 "block_int.h"
                     70: #include "sysemu.h"
                     71: #include "dma.h"
                     72: 
                     73: #include <hw/ide/pci.h>
                     74: #include <hw/ide/ahci.h>
                     75: 
                     76: static int pci_ich9_ahci_init(PCIDevice *dev)
                     77: {
                     78:     struct AHCIPCIState *d;
                     79:     d = DO_UPCAST(struct AHCIPCIState, card, dev);
                     80: 
                     81:     pci_config_set_vendor_id(d->card.config, PCI_VENDOR_ID_INTEL);
                     82:     pci_config_set_device_id(d->card.config, PCI_DEVICE_ID_INTEL_82801IR);
                     83: 
                     84:     pci_config_set_class(d->card.config, PCI_CLASS_STORAGE_SATA);
                     85:     pci_config_set_revision(d->card.config, 0x02);
                     86:     pci_config_set_prog_interface(d->card.config, AHCI_PROGMODE_MAJOR_REV_1);
                     87: 
                     88:     d->card.config[PCI_CACHE_LINE_SIZE] = 0x08;  /* Cache line size */
                     89:     d->card.config[PCI_LATENCY_TIMER]   = 0x00;  /* Latency timer */
                     90:     pci_config_set_interrupt_pin(d->card.config, 1);
                     91: 
                     92:     /* XXX Software should program this register */
                     93:     d->card.config[0x90]   = 1 << 6; /* Address Map Register - AHCI mode */
                     94: 
                     95:     qemu_register_reset(ahci_reset, d);
                     96: 
                     97:     /* XXX BAR size should be 1k, but that breaks, so bump it to 4k for now */
                     98:     pci_register_bar(&d->card, 5, 0x1000, PCI_BASE_ADDRESS_SPACE_MEMORY,
                     99:                      ahci_pci_map);
                    100: 
                    101:     msi_init(dev, 0x50, 1, true, false);
                    102: 
                    103:     ahci_init(&d->ahci, &dev->qdev, 6);
                    104:     d->ahci.irq = d->card.irq[0];
                    105: 
                    106:     return 0;
                    107: }
                    108: 
                    109: static int pci_ich9_uninit(PCIDevice *dev)
                    110: {
                    111:     struct AHCIPCIState *d;
                    112:     d = DO_UPCAST(struct AHCIPCIState, card, dev);
                    113: 
                    114:     if (msi_enabled(dev)) {
                    115:         msi_uninit(dev);
                    116:     }
                    117: 
                    118:     qemu_unregister_reset(ahci_reset, d);
                    119:     ahci_uninit(&d->ahci);
                    120: 
                    121:     return 0;
                    122: }
                    123: 
                    124: static void pci_ich9_write_config(PCIDevice *pci, uint32_t addr,
                    125:                                   uint32_t val, int len)
                    126: {
                    127:     pci_default_write_config(pci, addr, val, len);
                    128:     msi_write_config(pci, addr, val, len);
                    129: }
                    130: 
                    131: static PCIDeviceInfo ich_ahci_info[] = {
                    132:     {
                    133:         .qdev.name    = "ich9-ahci",
                    134:         .qdev.alias   = "ahci",
                    135:         .qdev.size    = sizeof(AHCIPCIState),
                    136:         .init         = pci_ich9_ahci_init,
                    137:         .exit         = pci_ich9_uninit,
                    138:         .config_write = pci_ich9_write_config,
                    139:     },{
                    140:         /* end of list */
                    141:     }
                    142: };
                    143: 
                    144: static void ich_ahci_register(void)
                    145: {
                    146:     pci_qdev_register_many(ich_ahci_info);
                    147: }
                    148: device_init(ich_ahci_register);

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