- implement 'fastboot flash' for eMMC devices
Signed-off-by: Steve Rae s...@broadcom.com
---
Changes in v3: None
Changes in v2:
- update README.android-fastboot file
README | 10 ++
doc/README.android-fastboot | 5 +++--
drivers/usb/gadget/f_fastboot.c | 31 +++
3 files changed, 44 insertions(+), 2 deletions(-)
diff --git a/README b/README
index fe5cacb..984db6d 100644
--- a/README
+++ b/README
@@ -1623,6 +1623,16 @@ The following options need to be configured:
downloads. This buffer should be as large as possible for a
platform. Define this to the size available RAM for fastboot.
+ CONFIG_FASTBOOT_FLASH
+ The fastboot protocol includes a flash command for writing
+ the downloaded image to a non-volatile storage device. Define
+ this to enable the fastboot flash command.
+
+ CONFIG_FASTBOOT_FLASH_MMC_DEV
+ The fastboot flash command requires addition information
+ regarding the non-volatile storage device. Define this to
+ the eMMC device that fastboot should use to store the image.
+
- Journaling Flash filesystem support:
CONFIG_JFFS2_NAND, CONFIG_JFFS2_NAND_OFF,
CONFIG_JFFS2_NAND_SIZE,
CONFIG_JFFS2_NAND_DEV
diff --git a/doc/README.android-fastboot b/doc/README.android-fastboot
index f1d128c..430e29c 100644
--- a/doc/README.android-fastboot
+++ b/doc/README.android-fastboot
@@ -6,8 +6,9 @@ Overview
The protocol that is used over USB is described in
README.android-fastboot-protocol in same directory.
-The current implementation does not yet support the flash and erase
-commands.
+The current implementation does not yet support the erase command or the
+oem format command, and there is minimal support for the flash command;
+it only supports eMMC devices.
Client installation
===
diff --git a/drivers/usb/gadget/f_fastboot.c b/drivers/usb/gadget/f_fastboot.c
index 9dd85b6..89c2d3e 100644
--- a/drivers/usb/gadget/f_fastboot.c
+++ b/drivers/usb/gadget/f_fastboot.c
@@ -19,6 +19,9 @@
#include linux/compiler.h
#include version.h
#include g_dnl.h
+#ifdef CONFIG_FASTBOOT_FLASH_MMC_DEV
+#include fb_mmc.h
+#endif
#define FASTBOOT_VERSION 0.4
@@ -466,6 +469,28 @@ static void cb_boot(struct usb_ep *ep, struct usb_request
*req)
fastboot_tx_write_str(OKAY);
}
+#ifdef CONFIG_FASTBOOT_FLASH
+static void cb_flash(struct usb_ep *ep, struct usb_request *req)
+{
+ char *cmd = req-buf;
+ char response[RESPONSE_LEN];
+
+ strsep(cmd, :);
+ if (!cmd) {
+ printf(%s: missing partition name\n, __func__);
+ fastboot_tx_write_str(FAILmissing partition name);
+ return;
+ }
+
+ strcpy(response, FAILno flash device defined);
+#ifdef CONFIG_FASTBOOT_FLASH_MMC_DEV
+ fb_mmc_flash_write(cmd, (void *)CONFIG_USB_FASTBOOT_BUF_ADDR,
+ download_bytes, response);
+#endif
+ fastboot_tx_write_str(response);
+}
+#endif
+
struct cmd_dispatch_info {
char *cmd;
void (*cb)(struct usb_ep *ep, struct usb_request *req);
@@ -485,6 +510,12 @@ static const struct cmd_dispatch_info cmd_dispatch_info[]
= {
.cmd = boot,
.cb = cb_boot,
},
+#ifdef CONFIG_FASTBOOT_FLASH
+ {
+ .cmd = flash,
+ .cb = cb_flash,
+ },
+#endif
};
static void rx_handler_command(struct usb_ep *ep, struct usb_request *req)
--
1.8.5
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