app: aboot: Change to enable hibernation support.
For hibernation support, we need to pass commandline parameter,
resume with swap partition block address.
This change add support to update commandline when hibernation,
flag is enabled.
Change-Id: If41bac5c78b4fb7fa1c6714ead49eec1df6cfd68
diff --git a/app/aboot/aboot.c b/app/aboot/aboot.c
index 31b5315..1d6be25 100644
--- a/app/aboot/aboot.c
+++ b/app/aboot/aboot.c
@@ -188,6 +188,11 @@
static const char *baseband_apq_nowgr = " androidboot.baseband=baseband_apq_nowgr";
static const char *androidboot_slot_suffix = " androidboot.slot_suffix=";
static const char *skip_ramfs = " skip_initramfs";
+
+#if HIBERNATION_SUPPORT
+static const char *resume = " resume=/dev/mmcblk0p";
+#endif
+
#ifdef INIT_BIN_LE
static const char *sys_path_cmdline = " rootwait ro init="INIT_BIN_LE;
#else
@@ -395,6 +400,12 @@
int syspath_buflen = strlen(sys_path) + sizeof(int) + 2; /*allocate buflen for largest possible string*/
#endif
char syspath_buf[syspath_buflen];
+#if HIBERNATION_SUPPORT
+ int resume_buflen = strlen(resume) + sizeof(int) + 2;
+ char resume_buf[resume_buflen];
+ int swap_ptn_index = INVALID_PTN;
+#endif
+
#if VERIFIED_BOOT
uint32_t boot_state = RED;
#endif
@@ -597,6 +608,24 @@
cmdline_len += strlen(skip_ramfs);
}
+#if HIBERNATION_SUPPORT
+ if (platform_boot_dev_isemmc())
+ {
+ swap_ptn_index = partition_get_index("swap");
+ if (swap_ptn_index != INVALID_PTN)
+ {
+ snprintf(resume_buf, resume_buflen,
+ " %s%d", resume,
+ (swap_ptn_index + 1));
+ cmdline_len += strlen(resume_buf);
+ }
+ else
+ {
+ dprintf(INFO, "WARNING: swap partition not found\n");
+ }
+ }
+#endif
+
#if TARGET_CMDLINE_SUPPORT
char *target_cmdline_buf = malloc(TARGET_MAX_CMDLNBUF);
int target_cmd_line_len;
@@ -832,6 +861,15 @@
#endif
}
+#if HIBERNATION_SUPPORT
+ if (swap_ptn_index != INVALID_PTN)
+ {
+ src = resume_buf;
+ --dst;
+ while ((*dst++ = *src++));
+ }
+#endif
+
#if TARGET_CMDLINE_SUPPORT
if (target_cmdline_buf && target_cmd_line_len)
{