libqos: Generalize I/O-mapped fw_cfg

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>

tests/Makefile

@@ -128,7 +128,7 @@ tests/test-mul64$(EXESUF): tests/test-mul64.o libqemuutil.a
 
 libqos-obj-y = tests/libqos/pci.o tests/libqos/fw_cfg.o
 libqos-obj-y += tests/libqos/i2c.o
-libqos-pc-obj-y = $(libqos-obj-y) tests/libqos/pci-pc.o tests/libqos/fw_cfg-pc.o
+libqos-pc-obj-y = $(libqos-obj-y) tests/libqos/pci-pc.o
 libqos-pc-obj-y += tests/libqos/malloc-pc.o
 libqos-omap-obj-y = $(libqos-obj-y) tests/libqos/i2c-omap.o
 

tests/fw_cfg-test.c

@@ -14,7 +14,7 @@
 
 #include "libqtest.h"
 #include "hw/nvram/fw_cfg.h"
-#include "libqos/fw_cfg-pc.h"
+#include "libqos/fw_cfg.h"
 
 #include <string.h>
 #include <glib.h>

tests/libqos/fw_cfg-pc.c

-/*
- * libqos fw_cfg support for PC
- *
- * Copyright IBM, Corp. 2012-2013
- *
- * Authors:
- *  Anthony Liguori   <aliguori@us.ibm.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- */
-
-#include "libqos/fw_cfg-pc.h"
-#include "libqtest.h"
-#include <glib.h>
-
-static void pc_fw_cfg_select(QFWCFG *fw_cfg, uint16_t key)
-{
-    outw(0x510, key);
-}
-
-static void pc_fw_cfg_read(QFWCFG *fw_cfg, void *data, size_t len)
-{
-    uint8_t *ptr = data;
-    int i;
-
-    for (i = 0; i < len; i++) {
-        ptr[i] = inb(0x511);
-    }
-}
-
-QFWCFG *pc_fw_cfg_init(void)
-{
-    QFWCFG *fw_cfg = g_malloc0(sizeof(*fw_cfg));
-
-    fw_cfg->select = pc_fw_cfg_select;
-    fw_cfg->read = pc_fw_cfg_read;
-
-    return fw_cfg;
-}

tests/libqos/fw_cfg-pc.h

-/*
- * libqos fw_cfg support for PC
- *
- * Copyright IBM, Corp. 2012-2013
- *
- * Authors:
- *  Anthony Liguori   <aliguori@us.ibm.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- */
-
-#ifndef LIBQOS_FW_CFG_PC_H
-#define LIBQOS_FW_CFG_PC_H
-
-#include "libqos/fw_cfg.h"
-
-QFWCFG *pc_fw_cfg_init(void);
-
-#endif

tests/libqos/fw_cfg.c

@@ -79,3 +79,29 @@ QFWCFG *mm_fw_cfg_init(uint64_t base)
 
     return fw_cfg;
 }
+
+static void io_fw_cfg_select(QFWCFG *fw_cfg, uint16_t key)
+{
+    outw(fw_cfg->base, key);
+}
+
+static void io_fw_cfg_read(QFWCFG *fw_cfg, void *data, size_t len)
+{
+    uint8_t *ptr = data;
+    int i;
+
+    for (i = 0; i < len; i++) {
+        ptr[i] = inb(fw_cfg->base + 1);
+    }
+}
+
+QFWCFG *io_fw_cfg_init(uint16_t base)
+{
+    QFWCFG *fw_cfg = g_malloc0(sizeof(*fw_cfg));
+
+    fw_cfg->base = base;
+    fw_cfg->select = io_fw_cfg_select;
+    fw_cfg->read = io_fw_cfg_read;
+
+    return fw_cfg;
+}

tests/libqos/fw_cfg.h

@@ -33,5 +33,11 @@ uint32_t qfw_cfg_get_u32(QFWCFG *fw_cfg, uint16_t key);
 uint64_t qfw_cfg_get_u64(QFWCFG *fw_cfg, uint16_t key);
 
 QFWCFG *mm_fw_cfg_init(uint64_t base);
+QFWCFG *io_fw_cfg_init(uint16_t base);
+
+static inline QFWCFG *pc_fw_cfg_init(void)
+{
+    return io_fw_cfg_init(0x510);
+}
 
 #endif

tests/libqos/malloc-pc.c

@@ -11,7 +11,7 @@
  */
 
 #include "libqos/malloc-pc.h"
-#include "libqos/fw_cfg-pc.h"
+#include "libqos/fw_cfg.h"
 
 #define NO_QEMU_PROTOS
 #include "hw/nvram/fw_cfg.h"