From patchwork Fri Dec 4 05:50:48 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Isaku Yamahata X-Patchwork-Id: 40298 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [199.232.76.165]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 5DCD0B7B6C for ; Fri, 4 Dec 2009 16:54:06 +1100 (EST) Received: from localhost ([127.0.0.1]:36287 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1NGR7D-0002lb-FX for incoming@patchwork.ozlabs.org; Fri, 04 Dec 2009 00:54:03 -0500 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1NGR4r-0001Eo-Io for qemu-devel@nongnu.org; Fri, 04 Dec 2009 00:51:37 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1NGR4l-000167-8F for qemu-devel@nongnu.org; Fri, 04 Dec 2009 00:51:36 -0500 Received: from [199.232.76.173] (port=41606 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1NGR4k-00015j-Ei for qemu-devel@nongnu.org; Fri, 04 Dec 2009 00:51:30 -0500 Received: from mail.valinux.co.jp ([210.128.90.3]:57094) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1NGR4j-0002sM-83 for qemu-devel@nongnu.org; Fri, 04 Dec 2009 00:51:30 -0500 Received: from ps.local.valinux.co.jp (vagw.valinux.co.jp [210.128.90.14]) by mail.valinux.co.jp (Postfix) with SMTP id 0CD3927D6D; Fri, 4 Dec 2009 14:51:22 +0900 (JST) Received: (nullmailer pid 25326 invoked by uid 1000); Fri, 04 Dec 2009 05:51:05 -0000 From: Isaku Yamahata To: qemu-devel@nongnu.org Date: Fri, 4 Dec 2009 14:50:48 +0900 Message-Id: <1259905865-25295-2-git-send-email-yamahata@valinux.co.jp> X-Mailer: git-send-email 1.6.5.4 In-Reply-To: <1259905865-25295-1-git-send-email-yamahata@valinux.co.jp> References: <1259905865-25295-1-git-send-email-yamahata@valinux.co.jp> X-Virus-Scanned: clamav-milter 0.95.2 at va-mail.local.valinux.co.jp X-Virus-Status: Clean X-detected-operating-system: by monty-python.gnu.org: GNU/Linux 2.6 (newer, 3) Cc: yamahata@valinux.co.jp Subject: [Qemu-devel] [PATCH V8 01/18] acpi: split out pc smbus routines from acpi.c into pc_smbus.c X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Split out pc smbus routines from acpi.c into pc_smbus.c and use it. The split out smbus emulation will be used later. Signed-off-by: Isaku Yamahata --- Makefile.target | 2 + hw/acpi.c | 164 +++------------------------------------------------ hw/pc_smbus.c | 178 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ hw/pc_smbus.h | 43 +++++++++++++ 4 files changed, 231 insertions(+), 156 deletions(-) create mode 100644 hw/pc_smbus.c create mode 100644 hw/pc_smbus.h diff --git a/Makefile.target b/Makefile.target index 891ea08..acf8865 100644 --- a/Makefile.target +++ b/Makefile.target @@ -195,6 +195,7 @@ obj-i386-y += cirrus_vga.o apic.o ioapic.o parallel.o acpi.o piix_pci.o obj-i386-y += usb-uhci.o vmmouse.o vmport.o vmware_vga.o hpet.o obj-i386-y += device-hotplug.o pci-hotplug.o smbios.o wdt_ib700.o obj-i386-y += ne2000-isa.o +obj-i386-y += pc_smbus.o # shared objects obj-ppc-y = ppc.o ide/core.o ide/qdev.o ide/isa.o ide/pci.o ide/macio.o @@ -225,6 +226,7 @@ obj-mips-y += ide/core.o ide/qdev.o ide/isa.o ide/pci.o ide/piix.o obj-mips-y += gt64xxx.o pckbd.o fdc.o mc146818rtc.o usb-uhci.o acpi.o ds1225y.o obj-mips-y += piix4.o parallel.o cirrus_vga.o pcspk.o $(sound-obj-y) obj-mips-y += mipsnet.o ne2000-isa.o +obj-mips-y += pc_smbus.o obj-mips-y += pflash_cfi01.o obj-mips-y += vmware_vga.o diff --git a/hw/acpi.c b/hw/acpi.c index 9a69e7d..6b030bb 100644 --- a/hw/acpi.c +++ b/hw/acpi.c @@ -17,6 +17,7 @@ */ #include "hw.h" #include "pc.h" +#include "pc_smbus.h" #include "pci.h" #include "qemu-timer.h" #include "sysemu.h" @@ -40,15 +41,9 @@ typedef struct PIIX4PMState { uint8_t apms; QEMUTimer *tmr_timer; int64_t tmr_overflow_time; - i2c_bus *smbus; - uint8_t smb_stat; - uint8_t smb_ctl; - uint8_t smb_cmd; - uint8_t smb_addr; - uint8_t smb_data0; - uint8_t smb_data1; - uint8_t smb_data[32]; - uint8_t smb_index; + + PCSMBus smb; + qemu_irq irq; } PIIX4PMState; @@ -66,14 +61,6 @@ typedef struct PIIX4PMState { #define ACPI_ENABLE 0xf1 #define ACPI_DISABLE 0xf0 -#define SMBHSTSTS 0x00 -#define SMBHSTCNT 0x02 -#define SMBHSTCMD 0x03 -#define SMBHSTADD 0x04 -#define SMBHSTDAT0 0x05 -#define SMBHSTDAT1 0x06 -#define SMBBLKDAT 0x07 - static PIIX4PMState *pm_state; static uint32_t get_pmtmr(PIIX4PMState *s) @@ -279,141 +266,6 @@ static void acpi_dbg_writel(void *opaque, uint32_t addr, uint32_t val) #endif } -static void smb_transaction(PIIX4PMState *s) -{ - uint8_t prot = (s->smb_ctl >> 2) & 0x07; - uint8_t read = s->smb_addr & 0x01; - uint8_t cmd = s->smb_cmd; - uint8_t addr = s->smb_addr >> 1; - i2c_bus *bus = s->smbus; - -#ifdef DEBUG - printf("SMBus trans addr=0x%02x prot=0x%02x\n", addr, prot); -#endif - switch(prot) { - case 0x0: - smbus_quick_command(bus, addr, read); - break; - case 0x1: - if (read) { - s->smb_data0 = smbus_receive_byte(bus, addr); - } else { - smbus_send_byte(bus, addr, cmd); - } - break; - case 0x2: - if (read) { - s->smb_data0 = smbus_read_byte(bus, addr, cmd); - } else { - smbus_write_byte(bus, addr, cmd, s->smb_data0); - } - break; - case 0x3: - if (read) { - uint16_t val; - val = smbus_read_word(bus, addr, cmd); - s->smb_data0 = val; - s->smb_data1 = val >> 8; - } else { - smbus_write_word(bus, addr, cmd, (s->smb_data1 << 8) | s->smb_data0); - } - break; - case 0x5: - if (read) { - s->smb_data0 = smbus_read_block(bus, addr, cmd, s->smb_data); - } else { - smbus_write_block(bus, addr, cmd, s->smb_data, s->smb_data0); - } - break; - default: - goto error; - } - return; - - error: - s->smb_stat |= 0x04; -} - -static void smb_ioport_writeb(void *opaque, uint32_t addr, uint32_t val) -{ - PIIX4PMState *s = opaque; - addr &= 0x3f; -#ifdef DEBUG - printf("SMB writeb port=0x%04x val=0x%02x\n", addr, val); -#endif - switch(addr) { - case SMBHSTSTS: - s->smb_stat = 0; - s->smb_index = 0; - break; - case SMBHSTCNT: - s->smb_ctl = val; - if (val & 0x40) - smb_transaction(s); - break; - case SMBHSTCMD: - s->smb_cmd = val; - break; - case SMBHSTADD: - s->smb_addr = val; - break; - case SMBHSTDAT0: - s->smb_data0 = val; - break; - case SMBHSTDAT1: - s->smb_data1 = val; - break; - case SMBBLKDAT: - s->smb_data[s->smb_index++] = val; - if (s->smb_index > 31) - s->smb_index = 0; - break; - default: - break; - } -} - -static uint32_t smb_ioport_readb(void *opaque, uint32_t addr) -{ - PIIX4PMState *s = opaque; - uint32_t val; - - addr &= 0x3f; - switch(addr) { - case SMBHSTSTS: - val = s->smb_stat; - break; - case SMBHSTCNT: - s->smb_index = 0; - val = s->smb_ctl & 0x1f; - break; - case SMBHSTCMD: - val = s->smb_cmd; - break; - case SMBHSTADD: - val = s->smb_addr; - break; - case SMBHSTDAT0: - val = s->smb_data0; - break; - case SMBHSTDAT1: - val = s->smb_data1; - break; - case SMBBLKDAT: - val = s->smb_data[s->smb_index++]; - if (s->smb_index > 31) - s->smb_index = 0; - break; - default: - val = 0; - break; - } -#ifdef DEBUG - printf("SMB readb port=0x%04x val=0x%02x\n", addr, val); -#endif - return val; -} - static void pm_io_space_update(PIIX4PMState *s) { uint32_t pm_io_base; @@ -542,8 +394,8 @@ i2c_bus *piix4_pm_init(PCIBus *bus, int devfn, uint32_t smb_io_base, pci_conf[0x90] = smb_io_base | 1; pci_conf[0x91] = smb_io_base >> 8; pci_conf[0xd2] = 0x09; - register_ioport_write(smb_io_base, 64, 1, smb_ioport_writeb, s); - register_ioport_read(smb_io_base, 64, 1, smb_ioport_readb, s); + register_ioport_write(smb_io_base, 64, 1, smb_ioport_writeb, &s->smb); + register_ioport_read(smb_io_base, 64, 1, smb_ioport_readb, &s->smb); s->tmr_timer = qemu_new_timer(vm_clock, pm_tmr_timer, s); @@ -551,11 +403,11 @@ i2c_bus *piix4_pm_init(PCIBus *bus, int devfn, uint32_t smb_io_base, vmstate_register(0, &vmstate_acpi, s); - s->smbus = i2c_init_bus(NULL, "i2c"); + pc_smbus_init(&s->smb); s->irq = sci_irq; qemu_register_reset(piix4_reset, s); - return s->smbus; + return s->smb.smbus; } #define GPE_BASE 0xafe0 diff --git a/hw/pc_smbus.c b/hw/pc_smbus.c new file mode 100644 index 0000000..850260d --- /dev/null +++ b/hw/pc_smbus.c @@ -0,0 +1,178 @@ +/* + * PC SMBus implementation + * splitted from acpi.c + * + * Copyright (c) 2006 Fabrice Bellard + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License version 2 as published by the Free Software Foundation. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA + */ +#include "hw.h" +#include "pc.h" +#include "pc_smbus.h" +#include "pci.h" +#include "qemu-timer.h" +#include "sysemu.h" +#include "i2c.h" +#include "smbus.h" +#include "kvm.h" + +/* no save/load? */ + +#define SMBHSTSTS 0x00 +#define SMBHSTCNT 0x02 +#define SMBHSTCMD 0x03 +#define SMBHSTADD 0x04 +#define SMBHSTDAT0 0x05 +#define SMBHSTDAT1 0x06 +#define SMBBLKDAT 0x07 + +static void smb_transaction(PCSMBus *s) +{ + uint8_t prot = (s->smb_ctl >> 2) & 0x07; + uint8_t read = s->smb_addr & 0x01; + uint8_t cmd = s->smb_cmd; + uint8_t addr = s->smb_addr >> 1; + i2c_bus *bus = s->smbus; + +#ifdef DEBUG + printf("SMBus trans addr=0x%02x prot=0x%02x\n", addr, prot); +#endif + switch(prot) { + case 0x0: + smbus_quick_command(bus, addr, read); + break; + case 0x1: + if (read) { + s->smb_data0 = smbus_receive_byte(bus, addr); + } else { + smbus_send_byte(bus, addr, cmd); + } + break; + case 0x2: + if (read) { + s->smb_data0 = smbus_read_byte(bus, addr, cmd); + } else { + smbus_write_byte(bus, addr, cmd, s->smb_data0); + } + break; + case 0x3: + if (read) { + uint16_t val; + val = smbus_read_word(bus, addr, cmd); + s->smb_data0 = val; + s->smb_data1 = val >> 8; + } else { + smbus_write_word(bus, addr, cmd, (s->smb_data1 << 8) | s->smb_data0); + } + break; + case 0x5: + if (read) { + s->smb_data0 = smbus_read_block(bus, addr, cmd, s->smb_data); + } else { + smbus_write_block(bus, addr, cmd, s->smb_data, s->smb_data0); + } + break; + default: + goto error; + } + return; + + error: + s->smb_stat |= 0x04; +} + +void smb_ioport_writeb(void *opaque, uint32_t addr, uint32_t val) +{ + PCSMBus *s = opaque; + addr &= 0x3f; +#ifdef DEBUG + printf("SMB writeb port=0x%04x val=0x%02x\n", addr, val); +#endif + switch(addr) { + case SMBHSTSTS: + s->smb_stat = 0; + s->smb_index = 0; + break; + case SMBHSTCNT: + s->smb_ctl = val; + if (val & 0x40) + smb_transaction(s); + break; + case SMBHSTCMD: + s->smb_cmd = val; + break; + case SMBHSTADD: + s->smb_addr = val; + break; + case SMBHSTDAT0: + s->smb_data0 = val; + break; + case SMBHSTDAT1: + s->smb_data1 = val; + break; + case SMBBLKDAT: + s->smb_data[s->smb_index++] = val; + if (s->smb_index > 31) + s->smb_index = 0; + break; + default: + break; + } +} + +uint32_t smb_ioport_readb(void *opaque, uint32_t addr) +{ + PCSMBus *s = opaque; + uint32_t val; + + addr &= 0x3f; + switch(addr) { + case SMBHSTSTS: + val = s->smb_stat; + break; + case SMBHSTCNT: + s->smb_index = 0; + val = s->smb_ctl & 0x1f; + break; + case SMBHSTCMD: + val = s->smb_cmd; + break; + case SMBHSTADD: + val = s->smb_addr; + break; + case SMBHSTDAT0: + val = s->smb_data0; + break; + case SMBHSTDAT1: + val = s->smb_data1; + break; + case SMBBLKDAT: + val = s->smb_data[s->smb_index++]; + if (s->smb_index > 31) + s->smb_index = 0; + break; + default: + val = 0; + break; + } +#ifdef DEBUG + printf("SMB readb port=0x%04x val=0x%02x\n", addr, val); +#endif + return val; +} + +void pc_smbus_init(PCSMBus *smb) +{ + smb->smbus = i2c_init_bus(NULL, "i2c"); +} diff --git a/hw/pc_smbus.h b/hw/pc_smbus.h new file mode 100644 index 0000000..5e5a66f --- /dev/null +++ b/hw/pc_smbus.h @@ -0,0 +1,43 @@ +/* + * QEMU PC SMBUS controller Emulation + * + * Copyright (c) 2009 Isaku Yamahata + * VA Linux Systems Japan K.K. + * + * This is based on piix_pci.c, but heavily modified. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA + */ +#ifndef PC_SMBUS_H +#define PC_SMBUS_H + +typedef struct PCSMBus { + i2c_bus *smbus; + + uint8_t smb_stat; + uint8_t smb_ctl; + uint8_t smb_cmd; + uint8_t smb_addr; + uint8_t smb_data0; + uint8_t smb_data1; + uint8_t smb_data[32]; + uint8_t smb_index; +} PCSMBus; + +void pc_smbus_init(PCSMBus *smb); +void smb_ioport_writeb(void *opaque, uint32_t addr, uint32_t val); +uint32_t smb_ioport_readb(void *opaque, uint32_t addr); + +#endif /* !PC_SMBUS_H */