tests/libqos/fw_cfg.h

   1 /*
   2  * libqos fw_cfg support
   3  *
   4  * Copyright IBM, Corp. 2012-2013
   5  *
   6  * Authors:
   7  *  Anthony Liguori   <aliguori@us.ibm.com>
   8  *
   9  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  10  * See the COPYING file in the top-level directory.
  11  */
  12
  13 #ifndef LIBQOS_FW_CFG_H
  14 #define LIBQOS_FW_CFG_H
  15
  16 #include <stdint.h>
  17 #include <sys/types.h>
  18
  19 typedef struct QFWCFG QFWCFG;
  20
  21 struct QFWCFG
  22 {
  23     uint64_t base;
  24     void (*select)(QFWCFG *fw_cfg, uint16_t key);
  25     void (*read)(QFWCFG *fw_cfg, void *data, size_t len);
  26 };
  27
  28 void qfw_cfg_select(QFWCFG *fw_cfg, uint16_t key);
  29 void qfw_cfg_read_data(QFWCFG *fw_cfg, void *data, size_t len);
  30 void qfw_cfg_get(QFWCFG *fw_cfg, uint16_t key, void *data, size_t len);
  31 uint16_t qfw_cfg_get_u16(QFWCFG *fw_cfg, uint16_t key);
  32 uint32_t qfw_cfg_get_u32(QFWCFG *fw_cfg, uint16_t key);
  33 uint64_t qfw_cfg_get_u64(QFWCFG *fw_cfg, uint16_t key);
  34
  35 QFWCFG *mm_fw_cfg_init(uint64_t base);
  36 QFWCFG *io_fw_cfg_init(uint16_t base);
  37
  38 static inline QFWCFG *pc_fw_cfg_init(void)
  39 {
  40     return io_fw_cfg_init(0x510);
  41 }
  42
  43 #endif