xref: /openbmc/qemu/tests/qtest/libqos/fw_cfg.h (revision a68694cd)
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 "libqtest.h"
17 
18 typedef struct QFWCFG QFWCFG;
19 
20 struct QFWCFG
21 {
22     uint64_t base;
23     QTestState *qts;
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 size_t qfw_cfg_get_file(QFWCFG *fw_cfg, const char *filename,
35                         void *data, size_t buflen);
36 
37 QFWCFG *mm_fw_cfg_init(QTestState *qts, uint64_t base);
38 void mm_fw_cfg_uninit(QFWCFG *fw_cfg);
39 QFWCFG *io_fw_cfg_init(QTestState *qts, uint16_t base);
40 void io_fw_cfg_uninit(QFWCFG *fw_cfg);
41 
42 static inline QFWCFG *pc_fw_cfg_init(QTestState *qts)
43 {
44     return io_fw_cfg_init(qts, 0x510);
45 }
46 
47 static inline void pc_fw_cfg_uninit(QFWCFG *fw_cfg)
48 {
49     io_fw_cfg_uninit(fw_cfg);
50 }
51 
52 G_DEFINE_AUTOPTR_CLEANUP_FUNC(QFWCFG, mm_fw_cfg_uninit)
53 
54 #endif
55