26491a388c
Provide a constructor that takes the base address in addition to the PC-specific one. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-id: 1372254743-15808-12-git-send-email-armbru@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
108 lines
2.2 KiB
C
108 lines
2.2 KiB
C
/*
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* libqos fw_cfg support
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*
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* Copyright IBM, Corp. 2012-2013
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* Copyright (C) 2013 Red Hat Inc.
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*
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* Authors:
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* Anthony Liguori <aliguori@us.ibm.com>
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* Markus Armbruster <armbru@redhat.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#include <glib.h>
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#include "libqos/fw_cfg.h"
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#include "libqtest.h"
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#include "qemu/bswap.h"
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void qfw_cfg_select(QFWCFG *fw_cfg, uint16_t key)
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{
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fw_cfg->select(fw_cfg, key);
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}
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void qfw_cfg_read_data(QFWCFG *fw_cfg, void *data, size_t len)
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{
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fw_cfg->read(fw_cfg, data, len);
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}
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void qfw_cfg_get(QFWCFG *fw_cfg, uint16_t key, void *data, size_t len)
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{
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qfw_cfg_select(fw_cfg, key);
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qfw_cfg_read_data(fw_cfg, data, len);
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}
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uint16_t qfw_cfg_get_u16(QFWCFG *fw_cfg, uint16_t key)
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{
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uint16_t value;
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qfw_cfg_get(fw_cfg, key, &value, sizeof(value));
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return le16_to_cpu(value);
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}
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uint32_t qfw_cfg_get_u32(QFWCFG *fw_cfg, uint16_t key)
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{
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uint32_t value;
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qfw_cfg_get(fw_cfg, key, &value, sizeof(value));
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return le32_to_cpu(value);
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}
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uint64_t qfw_cfg_get_u64(QFWCFG *fw_cfg, uint16_t key)
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{
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uint64_t value;
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qfw_cfg_get(fw_cfg, key, &value, sizeof(value));
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return le64_to_cpu(value);
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}
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static void mm_fw_cfg_select(QFWCFG *fw_cfg, uint16_t key)
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{
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writew(fw_cfg->base, key);
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}
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static void mm_fw_cfg_read(QFWCFG *fw_cfg, void *data, size_t len)
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{
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uint8_t *ptr = data;
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int i;
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for (i = 0; i < len; i++) {
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ptr[i] = readb(fw_cfg->base + 2);
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}
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}
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QFWCFG *mm_fw_cfg_init(uint64_t base)
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{
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QFWCFG *fw_cfg = g_malloc0(sizeof(*fw_cfg));
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fw_cfg->base = base;
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fw_cfg->select = mm_fw_cfg_select;
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fw_cfg->read = mm_fw_cfg_read;
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return fw_cfg;
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}
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static void io_fw_cfg_select(QFWCFG *fw_cfg, uint16_t key)
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{
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outw(fw_cfg->base, key);
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}
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static void io_fw_cfg_read(QFWCFG *fw_cfg, void *data, size_t len)
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{
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uint8_t *ptr = data;
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int i;
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for (i = 0; i < len; i++) {
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ptr[i] = inb(fw_cfg->base + 1);
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}
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}
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QFWCFG *io_fw_cfg_init(uint16_t base)
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{
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QFWCFG *fw_cfg = g_malloc0(sizeof(*fw_cfg));
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fw_cfg->base = base;
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fw_cfg->select = io_fw_cfg_select;
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fw_cfg->read = io_fw_cfg_read;
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return fw_cfg;
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}
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