diff options
Diffstat (limited to 'include/hw/nvram')
| -rw-r--r-- | include/hw/nvram/fw_cfg.h | 4 | ||||
| -rw-r--r-- | include/hw/nvram/openbios_firmware_abi.h | 73 |
2 files changed, 76 insertions, 1 deletions
diff --git a/include/hw/nvram/fw_cfg.h b/include/hw/nvram/fw_cfg.h index 3e4a3347e8..f60dd676c8 100644 --- a/include/hw/nvram/fw_cfg.h +++ b/include/hw/nvram/fw_cfg.h @@ -6,6 +6,7 @@ #include <stddef.h> #include "exec/hwaddr.h" +#include "qemu/typedefs.h" #endif #define FW_CFG_SIGNATURE 0x00 @@ -60,7 +61,6 @@ typedef struct FWCfgFiles { typedef void (*FWCfgCallback)(void *opaque, uint8_t *data); -typedef struct FWCfgState FWCfgState; 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); @@ -73,6 +73,8 @@ void fw_cfg_add_file(FWCfgState *s, const char *filename, void *data, FWCfgState *fw_cfg_init(uint32_t ctl_port, uint32_t data_port, hwaddr crl_addr, hwaddr data_addr); +FWCfgState *fw_cfg_find(void); + #endif /* NO_QEMU_PROTOS */ #endif diff --git a/include/hw/nvram/openbios_firmware_abi.h b/include/hw/nvram/openbios_firmware_abi.h new file mode 100644 index 0000000000..5e6e5d4d34 --- /dev/null +++ b/include/hw/nvram/openbios_firmware_abi.h @@ -0,0 +1,73 @@ +#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); + /* Calculate checksum */ + tmp = 0; + tmpptr = (uint8_t *)header; + for (i = 0; i < 15; i++) + tmp ^= tmpptr[i]; + + header->checksum = tmp; +} +#endif /* FIRMWARE_ABI_H */ |