diff options
Diffstat (limited to 'src/include/hw/nvram')
| -rw-r--r-- | src/include/hw/nvram/eeprom93xx.h | 40 | ||||
| -rw-r--r-- | src/include/hw/nvram/fw_cfg.h | 101 | ||||
| -rw-r--r-- | src/include/hw/nvram/openbios_firmware_abi.h | 75 |
3 files changed, 216 insertions, 0 deletions
diff --git a/src/include/hw/nvram/eeprom93xx.h b/src/include/hw/nvram/eeprom93xx.h new file mode 100644 index 0000000..8ba0e28 --- /dev/null +++ b/src/include/hw/nvram/eeprom93xx.h @@ -0,0 +1,40 @@ +/* + * QEMU EEPROM 93xx emulation + * + * Copyright (c) 2006-2007 Stefan Weil + * + * 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 of the License, 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; if not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef EEPROM93XX_H +#define EEPROM93XX_H + +typedef struct _eeprom_t eeprom_t; + +/* Create a new EEPROM with (nwords * 2) bytes. */ +eeprom_t *eeprom93xx_new(DeviceState *dev, uint16_t nwords); + +/* Destroy an existing EEPROM. */ +void eeprom93xx_free(DeviceState *dev, eeprom_t *eeprom); + +/* Read from the EEPROM. */ +uint16_t eeprom93xx_read(eeprom_t *eeprom); + +/* Write to the EEPROM. */ +void eeprom93xx_write(eeprom_t *eeprom, int eecs, int eesk, int eedi); + +/* Get EEPROM data array. */ +uint16_t *eeprom93xx_data(eeprom_t *eeprom); + +#endif /* EEPROM93XX_H */ diff --git a/src/include/hw/nvram/fw_cfg.h b/src/include/hw/nvram/fw_cfg.h new file mode 100644 index 0000000..ee0cd8a --- /dev/null +++ b/src/include/hw/nvram/fw_cfg.h @@ -0,0 +1,101 @@ +#ifndef FW_CFG_H +#define FW_CFG_H + +#ifndef NO_QEMU_PROTOS +#include <stdint.h> +#include <stddef.h> + +#include "exec/hwaddr.h" +#include "qemu/typedefs.h" +#endif + +#define FW_CFG_SIGNATURE 0x00 +#define FW_CFG_ID 0x01 +#define FW_CFG_UUID 0x02 +#define FW_CFG_RAM_SIZE 0x03 +#define FW_CFG_NOGRAPHIC 0x04 +#define FW_CFG_NB_CPUS 0x05 +#define FW_CFG_MACHINE_ID 0x06 +#define FW_CFG_KERNEL_ADDR 0x07 +#define FW_CFG_KERNEL_SIZE 0x08 +#define FW_CFG_KERNEL_CMDLINE 0x09 +#define FW_CFG_INITRD_ADDR 0x0a +#define FW_CFG_INITRD_SIZE 0x0b +#define FW_CFG_BOOT_DEVICE 0x0c +#define FW_CFG_NUMA 0x0d +#define FW_CFG_BOOT_MENU 0x0e +#define FW_CFG_MAX_CPUS 0x0f +#define FW_CFG_KERNEL_ENTRY 0x10 +#define FW_CFG_KERNEL_DATA 0x11 +#define FW_CFG_INITRD_DATA 0x12 +#define FW_CFG_CMDLINE_ADDR 0x13 +#define FW_CFG_CMDLINE_SIZE 0x14 +#define FW_CFG_CMDLINE_DATA 0x15 +#define FW_CFG_SETUP_ADDR 0x16 +#define FW_CFG_SETUP_SIZE 0x17 +#define FW_CFG_SETUP_DATA 0x18 +#define FW_CFG_FILE_DIR 0x19 + +#define FW_CFG_FILE_FIRST 0x20 +#define FW_CFG_FILE_SLOTS 0x10 +#define FW_CFG_MAX_ENTRY (FW_CFG_FILE_FIRST+FW_CFG_FILE_SLOTS) + +#define FW_CFG_WRITE_CHANNEL 0x4000 +#define FW_CFG_ARCH_LOCAL 0x8000 +#define FW_CFG_ENTRY_MASK ~(FW_CFG_WRITE_CHANNEL | FW_CFG_ARCH_LOCAL) + +#define FW_CFG_INVALID 0xffff + +#define FW_CFG_MAX_FILE_PATH 56 + +#ifndef NO_QEMU_PROTOS +typedef struct FWCfgFile { + uint32_t size; /* file size */ + uint16_t select; /* write this to 0x510 to read it */ + uint16_t reserved; + char name[FW_CFG_MAX_FILE_PATH]; +} FWCfgFile; + +typedef struct FWCfgFiles { + uint32_t count; + FWCfgFile f[]; +} FWCfgFiles; + +/* Control as first field allows for different structures selected by this + * field, which might be useful in the future + */ +typedef struct FWCfgDmaAccess { + uint32_t control; + uint32_t length; + uint64_t address; +} QEMU_PACKED FWCfgDmaAccess; + +typedef void (*FWCfgCallback)(void *opaque, uint8_t *data); +typedef void (*FWCfgReadCallback)(void *opaque, uint32_t offset); + +void fw_cfg_add_bytes(FWCfgState *s, uint16_t key, void *data, size_t len); +void fw_cfg_add_string(FWCfgState *s, uint16_t key, const char *value); +void fw_cfg_add_i16(FWCfgState *s, uint16_t key, uint16_t value); +void fw_cfg_modify_i16(FWCfgState *s, uint16_t key, uint16_t value); +void fw_cfg_add_i32(FWCfgState *s, uint16_t key, uint32_t value); +void fw_cfg_add_i64(FWCfgState *s, uint16_t key, uint64_t value); +void fw_cfg_add_file(FWCfgState *s, const char *filename, void *data, + size_t len); +void fw_cfg_add_file_callback(FWCfgState *s, const char *filename, + FWCfgReadCallback callback, void *callback_opaque, + void *data, size_t len); +void *fw_cfg_modify_file(FWCfgState *s, const char *filename, void *data, + size_t len); +FWCfgState *fw_cfg_init_io_dma(uint32_t iobase, uint32_t dma_iobase, + AddressSpace *dma_as); +FWCfgState *fw_cfg_init_io(uint32_t iobase); +FWCfgState *fw_cfg_init_mem(hwaddr ctl_addr, hwaddr data_addr); +FWCfgState *fw_cfg_init_mem_wide(hwaddr ctl_addr, + hwaddr data_addr, uint32_t data_width, + hwaddr dma_addr, AddressSpace *dma_as); + +FWCfgState *fw_cfg_find(void); + +#endif /* NO_QEMU_PROTOS */ + +#endif diff --git a/src/include/hw/nvram/openbios_firmware_abi.h b/src/include/hw/nvram/openbios_firmware_abi.h new file mode 100644 index 0000000..c66ee22 --- /dev/null +++ b/src/include/hw/nvram/openbios_firmware_abi.h @@ -0,0 +1,75 @@ +#ifndef FIRMWARE_ABI_H +#define FIRMWARE_ABI_H + +/* OpenBIOS NVRAM partition */ +struct OpenBIOS_nvpart_v1 { + uint8_t signature; + uint8_t checksum; + uint16_t len; // BE, length divided by 16 + char name[12]; +}; + +#define OPENBIOS_PART_SYSTEM 0x70 +#define OPENBIOS_PART_FREE 0x7f + +static inline void +OpenBIOS_finish_partition(struct OpenBIOS_nvpart_v1 *header, uint32_t size) +{ + unsigned int i, sum; + uint8_t *tmpptr; + + // Length divided by 16 + header->len = cpu_to_be16(size >> 4); + + // Checksum + tmpptr = (uint8_t *)header; + sum = *tmpptr; + for (i = 0; i < 14; i++) { + sum += tmpptr[2 + i]; + sum = (sum + ((sum & 0xff00) >> 8)) & 0xff; + } + header->checksum = sum & 0xff; +} + +static inline uint32_t +OpenBIOS_set_var(uint8_t *nvram, uint32_t addr, const char *str) +{ + uint32_t len; + + len = strlen(str) + 1; + memcpy(&nvram[addr], str, len); + + return addr + len; +} + +/* Sun IDPROM structure at the end of NVRAM */ +/* from http://www.squirrel.com/squirrel/sun-nvram-hostid.faq.html */ +struct Sun_nvram { + uint8_t type; /* always 01 */ + uint8_t machine_id; /* first byte of host id (machine type) */ + uint8_t macaddr[6]; /* 6 byte ethernet address (first 3 bytes 08, 00, 20) */ + uint8_t date[4]; /* date of manufacture */ + uint8_t hostid[3]; /* remaining 3 bytes of host id (serial number) */ + uint8_t checksum; /* bitwise xor of previous bytes */ +}; + +static inline void +Sun_init_header(struct Sun_nvram *header, const uint8_t *macaddr, int machine_id) +{ + uint8_t tmp, *tmpptr; + unsigned int i; + + header->type = 1; + header->machine_id = machine_id & 0xff; + memcpy(&header->macaddr, macaddr, 6); + memcpy(&header->hostid , &macaddr[3], 3); + + /* Calculate checksum */ + tmp = 0; + tmpptr = (uint8_t *)header; + for (i = 0; i < 15; i++) + tmp ^= tmpptr[i]; + + header->checksum = tmp; +} +#endif /* FIRMWARE_ABI_H */ |
