MA-9012 Support boot commands from bcb info

* Remove recovery/bootloader mode checking based on snvs register
* Use the API fastboot_run_bootmode() as the entry to check different
  boot mode
* Set boot mode based on commands stored in bcb structure to align
  Android's bootloader_message_writer.cpp
  bootonce-bootloader -- > Fastboot mode
  boot-recovery -- > Recovery mode
* Rename the recovery.c as recovery_keypad.c as only handle keypad

Change-Id: If34bee0c78bdca252e33296d61443d01a8fc8e96
Signed-off-by: Chen Guoyin <guoyin.chen@nxp.com>

3 files changed, 76 insertions, 50 deletions

diff --git a/drivers/usb/gadget/bcb.h b/drivers/usb/gadget/bcb.h
index f0bd83b..705c572 100644
--- a/drivers/usb/gadget/bcb.h
+++ b/drivers/usb/gadget/bcb.h
@@ -9,6 +9,11 @@
 #include <linux/types.h>
 #include <linux/stat.h>
 
+#define FASTBOOT_BCB_CMD "bootonce-bootloader"
+#ifdef CONFIG_ANDROID_RECOVERY
+#define RECOVERY_BCB_CMD "boot-recovery"
+#endif
+
 /* keep same as bootable/recovery/bootloader.h */
 struct bootloader_message {
 	char command[32];
@@ -49,4 +54,8 @@ int rw_block(bool bread, char **ppblock,
 		uint *pblksize, char *pblock_write, uint offset, uint size);
 
 void set_mmc_id(unsigned int id);
+
+int bcb_write_command(char *bcb_command);
+
+int bcb_read_command(char *command);
 #endif
diff --git a/drivers/usb/gadget/command.c b/drivers/usb/gadget/command.c
index 3af3fcf..686065a 100644
--- a/drivers/usb/gadget/command.c
+++ b/drivers/usb/gadget/command.c
@@ -9,8 +9,7 @@
 #include "bcb.h"
 
 #ifndef CONFIG_FASTBOOT_STORAGE_NAND
-static char command[32];
-static int read_command(char *command)
+int bcb_read_command(char *command)
 {
 	int ret = 0;
 	char *p_block = NULL;
@@ -31,7 +30,8 @@ static int read_command(char *command)
 
 	return 0;
 }
-static int write_command(char *bcb_command)
+
+int bcb_write_command(char *bcb_command)
 {
 	int ret = 0;
 	char *p_block = NULL;
@@ -61,45 +61,4 @@ static int write_command(char *bcb_command)
 	free(p_block);
 	return 0;
 }
-
-int recovery_check_and_clean_command(void)
-{
-	int ret;
-	ret = read_command(command);
-	if (ret < 0) {
-		printf("read command failed\n");
-		return 0;
-	}
-	if (!strcmp(command, "boot-recovery")) {
-		memset(command, 0, 32);
-		write_command(command);
-		return 1;
-	}
-	return 0;
-}
-int fastboot_check_and_clean_command(void)
-{
-	int ret;
-	ret = read_command(command);
-	if (ret < 0) {
-		printf("read command failed\n");
-		return 0;
-	}
-	if (!strcmp(command, "boot-bootloader")) {
-		memset(command, 0, 32);
-		write_command(command);
-		return 1;
-	}
-
-	return 0;
-}
-#else
-int recovery_check_and_clean_command(void)
-{
-	return 0;
-}
-int fastboot_check_and_clean_command(void)
-{
-	return 0;
-}
 #endif
diff --git a/drivers/usb/gadget/f_fastboot.c b/drivers/usb/gadget/f_fastboot.c
index 26af6b5..00b6c8e 100644
--- a/drivers/usb/gadget/f_fastboot.c
+++ b/drivers/usb/gadget/f_fastboot.c
@@ -1742,21 +1742,79 @@ void fastboot_setup(void)
 	/*load partitions information for the fastboot dev*/
 	_fastboot_load_partitions();
 
-	/*check if we need to setup recovery*/
+	parameters_setup();
+}
+
+/* Write the bcb with fastboot bootloader commands */
+static void enable_fastboot_command(void)
+{
+	char fastboot_command[32];
+	memcpy(fastboot_command, FASTBOOT_BCB_CMD, 32);
+	bcb_write_command(fastboot_command);
+}
+
+/* Get the Boot mode from BCB cmd or Key pressed */
+static FbBootMode fastboot_get_bootmode(void)
+{
+	int ret = 0;
+	int boot_mode = BOOTMODE_NORMAL;
+	char command[32];
+
 #ifdef CONFIG_ANDROID_RECOVERY
-    check_recovery_mode();
+	if(is_recovery_key_pressing()) {
+		boot_mode = BOOTMODE_RECOVERY_KEY_PRESSED;
+		return boot_mode;
+	}
 #endif
 
-	parameters_setup();
+	ret = bcb_read_command(command);
+	if (ret < 0) {
+		printf("read command failed\n");
+		return boot_mode;
+	}
+	if (!strcmp(command, FASTBOOT_BCB_CMD)) {
+		memset(command, 0, 32);
+		bcb_write_command(command);
+		boot_mode = BOOTMODE_FASTBOOT_BCB_CMD;
+	}
+#ifdef CONFIG_ANDROID_RECOVERY
+	else if (!strcmp(command, RECOVERY_BCB_CMD)) {
+		memset(command, 0, 32);
+		bcb_write_command(command);
+		boot_mode = BOOTMODE_RECOVERY_BCB_CMD;
+	}
+#endif
+
+	return boot_mode;
 }
 
 /* export to lib_arm/board.c */
-void check_fastboot(void)
+void fastboot_run_bootmode(void)
 {
-	if (fastboot_check_and_clean_flag())
+	FbBootMode boot_mode = fastboot_get_bootmode();
+	switch(boot_mode){
+	case BOOTMODE_FASTBOOT_BCB_CMD:
+		/* Make the boot into fastboot mode*/
+		puts("Fastboot: Got bootloader commands!\n");
 		run_command("fastboot", 0);
+		break;
+#ifdef CONFIG_ANDROID_RECOVERY
+	case BOOTMODE_RECOVERY_BCB_CMD:
+	case BOOTMODE_RECOVERY_KEY_PRESSED:
+		/* Make the boot into recovery mode */
+		puts("Fastboot: Got Recovery key pressing or recovery commands!\n");
+		board_recovery_setup();
+		break;
+#endif
+	default:
+		/* skip special mode boot*/
+		puts("Fastboot: Normal\n");
+		break;
+	}
 }
 
+
+
 #ifdef CONFIG_CMD_BOOTA
   /* Section for Android bootimage format support
    * Refer:
@@ -3093,7 +3151,7 @@ static void cb_reboot_bootloader(struct usb_ep *ep, struct usb_request *req)
 	fastboot_tx_write_str("OKAY");
 
 	udelay(1000000);
-	fastboot_enable_flag();
+	enable_fastboot_command();
 	do_reset(NULL, 0, 0, NULL);
 }
 #endif