[U-Boot] [PATCH 06/13] fastboot: Move fastboot response functions to fastboot core

Maxime Ripard maxime.ripard at free-electrons.com
Mon Aug 31 16:46:06 CEST 2015


The functions and a few define to generate a fastboot message to be sent
back to the host were so far duplicated among the users.

Move them all to a common place.

Signed-off-by: Maxime Ripard <maxime.ripard at free-electrons.com>
---
 common/aboot.c                  | 14 ++++++--------
 common/fb_mmc.c                 | 43 ++++++++++++++---------------------------
 drivers/usb/gadget/f_fastboot.c | 27 ++++++++++++++++++--------
 include/aboot.h                 |  3 ---
 include/fastboot.h              | 22 +++++++++++++++++++++
 5 files changed, 62 insertions(+), 47 deletions(-)
 create mode 100644 include/fastboot.h

diff --git a/common/aboot.c b/common/aboot.c
index 18ff30ee6d11..37ad50efc50a 100644
--- a/common/aboot.c
+++ b/common/aboot.c
@@ -277,7 +277,7 @@ void store_sparse_image(sparse_storage_t *storage,
 
 	sparse_header = sparse_parse_header(&data);
 	if (!sparse_header) {
-		fastboot_fail("sparse header issue\n");
+		printf("sparse header issue\n");
 		return;
 	}
 
@@ -288,7 +288,6 @@ void store_sparse_image(sparse_storage_t *storage,
 	if (sparse_header->blk_sz % storage->block_sz) {
 		printf("%s: Sparse image block size issue [%u]\n",
 		       __func__, sparse_header->blk_sz);
-		fastboot_fail("sparse image block size issue");
 		return;
 	}
 
@@ -299,7 +298,7 @@ void store_sparse_image(sparse_storage_t *storage,
 	for (chunk = 0; chunk < sparse_header->total_chunks; chunk++) {
 		chunk_header = sparse_parse_chunk(sparse_header, &data);
 		if (!chunk_header) {
-			fastboot_fail("Unknown chunk type");
+			printf("Unknown chunk type");
 			return;
 		}
 
@@ -314,7 +313,6 @@ void store_sparse_image(sparse_storage_t *storage,
 		if (blk + blkcnt > storage->start + storage->size) {
 			printf("%s: Request would exceed partition size!\n",
 			       __func__);
-			fastboot_fail("Request would exceed partition size!");
 			return;
 		}
 
@@ -331,7 +329,6 @@ void store_sparse_image(sparse_storage_t *storage,
 			if (buffer_blks != buffer_blk_cnt) {
 				printf("%s: Write %d failed %d\n",
 				       __func__, i, buffer_blks);
-				fastboot_fail("flash write failure");
 				return;
 			}
 
@@ -348,9 +345,10 @@ void store_sparse_image(sparse_storage_t *storage,
 	printf("........ wrote %u bytes to '%s'\n", bytes_written,
 	       storage->name);
 
-	if (total_blocks != sparse_header->total_blks)
-		fastboot_fail("sparse image write failure");
+	if (total_blocks != sparse_header->total_blks) {
+		printf("sparse image write failure");
+		return;
+	}
 
-	fastboot_okay("");
 	return;
 }
diff --git a/common/fb_mmc.c b/common/fb_mmc.c
index a44627c00060..0d6bcbf1f78b 100644
--- a/common/fb_mmc.c
+++ b/common/fb_mmc.c
@@ -6,6 +6,7 @@
 
 #include <config.h>
 #include <common.h>
+#include <fastboot.h>
 #include <fb_mmc.h>
 #include <part.h>
 #include <aboot.h>
@@ -16,23 +17,8 @@
 #define CONFIG_FASTBOOT_GPT_NAME GPT_ENTRY_NAME
 #endif
 
-/* The 64 defined bytes plus the '\0' */
-#define RESPONSE_LEN	(64 + 1)
-
 static char *response_str;
 
-void fastboot_fail(const char *s)
-{
-	strncpy(response_str, "FAIL\0", 5);
-	strncat(response_str, s, RESPONSE_LEN - 4 - 1);
-}
-
-void fastboot_okay(const char *s)
-{
-	strncpy(response_str, "OKAY\0", 5);
-	strncat(response_str, s, RESPONSE_LEN - 4 - 1);
-}
-
 struct fb_mmc_sparse {
 	block_dev_desc_t	*dev_desc;
 };
@@ -85,7 +71,7 @@ static void write_raw_image(block_dev_desc_t *dev_desc, disk_partition_t *info,
 
 	if (blkcnt > info->size) {
 		error("too large for partition: '%s'\n", part_name);
-		fastboot_fail("too large for partition");
+		fastboot_fail(response_str, "too large for partition");
 		return;
 	}
 
@@ -95,13 +81,13 @@ static void write_raw_image(block_dev_desc_t *dev_desc, disk_partition_t *info,
 				     buffer);
 	if (blks != blkcnt) {
 		error("failed writing to device %d\n", dev_desc->dev);
-		fastboot_fail("failed writing to device");
+		fastboot_fail(response_str, "failed writing to device");
 		return;
 	}
 
 	printf("........ wrote " LBAFU " bytes to '%s'\n", blkcnt * info->blksz,
 	       part_name);
-	fastboot_okay("");
+	fastboot_okay(response_str, "");
 }
 
 void fb_mmc_flash_write(const char *cmd, void *download_buffer,
@@ -116,7 +102,7 @@ void fb_mmc_flash_write(const char *cmd, void *download_buffer,
 	dev_desc = get_dev("mmc", CONFIG_FASTBOOT_FLASH_MMC_DEV);
 	if (!dev_desc || dev_desc->type == DEV_TYPE_UNKNOWN) {
 		error("invalid mmc device\n");
-		fastboot_fail("invalid mmc device");
+		fastboot_fail(response_str, "invalid mmc device");
 		return;
 	}
 
@@ -126,20 +112,21 @@ void fb_mmc_flash_write(const char *cmd, void *download_buffer,
 		if (is_valid_gpt_buf(dev_desc, download_buffer)) {
 			printf("%s: invalid GPT - refusing to write to flash\n",
 			       __func__);
-			fastboot_fail("invalid GPT partition");
+			fastboot_fail(response_str, "invalid GPT partition");
 			return;
 		}
 		if (write_mbr_and_gpt_partitions(dev_desc, download_buffer)) {
 			printf("%s: writing GPT partitions failed\n", __func__);
-			fastboot_fail("writing GPT partitions failed");
+			fastboot_fail(response_str,
+				      "writing GPT partitions failed");
 			return;
 		}
 		printf("........ success\n");
-		fastboot_okay("");
+		fastboot_okay(response_str, "");
 		return;
 	} else if (get_partition_info_efi_by_name_or_alias(dev_desc, cmd, &info)) {
 		error("cannot find partition: '%s'\n", cmd);
-		fastboot_fail("cannot find partition");
+		fastboot_fail(response_str, "cannot find partition");
 		return;
 	}
 
@@ -175,7 +162,7 @@ void fb_mmc_erase(const char *cmd, char *response)
 
 	if (mmc == NULL) {
 		error("invalid mmc device");
-		fastboot_fail("invalid mmc device");
+		fastboot_fail(response_str, "invalid mmc device");
 		return;
 	}
 
@@ -185,14 +172,14 @@ void fb_mmc_erase(const char *cmd, char *response)
 	dev_desc = get_dev("mmc", CONFIG_FASTBOOT_FLASH_MMC_DEV);
 	if (!dev_desc || dev_desc->type == DEV_TYPE_UNKNOWN) {
 		error("invalid mmc device");
-		fastboot_fail("invalid mmc device");
+		fastboot_fail(response_str, "invalid mmc device");
 		return;
 	}
 
 	ret = get_partition_info_efi_by_name_or_alias(dev_desc, cmd, &info);
 	if (ret) {
 		error("cannot find partition: '%s'", cmd);
-		fastboot_fail("cannot find partition");
+		fastboot_fail(response_str, "cannot find partition");
 		return;
 	}
 
@@ -211,11 +198,11 @@ void fb_mmc_erase(const char *cmd, char *response)
 	blks = dev_desc->block_erase(dev_desc->dev, blks_start, blks_size);
 	if (blks != blks_size) {
 		error("failed erasing from device %d", dev_desc->dev);
-		fastboot_fail("failed erasing from device");
+		fastboot_fail(response_str, "failed erasing from device");
 		return;
 	}
 
 	printf("........ erased " LBAFU " bytes from '%s'\n",
 	       blks_size * info.blksz, cmd);
-	fastboot_okay("");
+	fastboot_okay(response_str, "");
 }
diff --git a/drivers/usb/gadget/f_fastboot.c b/drivers/usb/gadget/f_fastboot.c
index ca01a018b5d1..5703decfd360 100644
--- a/drivers/usb/gadget/f_fastboot.c
+++ b/drivers/usb/gadget/f_fastboot.c
@@ -13,6 +13,7 @@
 #include <config.h>
 #include <common.h>
 #include <errno.h>
+#include <fastboot.h>
 #include <malloc.h>
 #include <linux/usb/ch9.h>
 #include <linux/usb/gadget.h>
@@ -34,9 +35,6 @@
 #define RX_ENDPOINT_MAXIMUM_PACKET_SIZE_1_1  (0x0040)
 #define TX_ENDPOINT_MAXIMUM_PACKET_SIZE      (0x0040)
 
-/* The 64 defined bytes plus \0 */
-#define RESPONSE_LEN	(64 + 1)
-
 #define EP_BUFFER_SIZE			4096
 
 struct f_fastboot {
@@ -125,6 +123,19 @@ static struct usb_gadget_strings *fastboot_strings[] = {
 static void rx_handler_command(struct usb_ep *ep, struct usb_request *req);
 static int strcmp_l1(const char *s1, const char *s2);
 
+
+void fastboot_fail(char *response, const char *reason)
+{
+	strncpy(response, "FAIL\0", 5);
+	strncat(response, reason, FASTBOOT_RESPONSE_LEN - 4 - 1);
+}
+
+void fastboot_okay(char *response, const char *reason)
+{
+	strncpy(response, "OKAY\0", 5);
+	strncat(response, reason, FASTBOOT_RESPONSE_LEN - 4 - 1);
+}
+
 static void fastboot_complete(struct usb_ep *ep, struct usb_request *req)
 {
 	int status = req->status;
@@ -358,7 +369,7 @@ static int strcmp_l1(const char *s1, const char *s2)
 static void cb_getvar(struct usb_ep *ep, struct usb_request *req)
 {
 	char *cmd = req->buf;
-	char response[RESPONSE_LEN];
+	char response[FASTBOOT_RESPONSE_LEN];
 	const char *s;
 	size_t chars_left;
 
@@ -415,7 +426,7 @@ static unsigned int rx_bytes_expected(unsigned int maxpacket)
 #define BYTES_PER_DOT	0x20000
 static void rx_handler_dl_image(struct usb_ep *ep, struct usb_request *req)
 {
-	char response[RESPONSE_LEN];
+	char response[FASTBOOT_RESPONSE_LEN];
 	unsigned int transfer_size = download_size - download_bytes;
 	const unsigned char *buffer = req->buf;
 	unsigned int buffer_size = req->actual;
@@ -472,7 +483,7 @@ static void rx_handler_dl_image(struct usb_ep *ep, struct usb_request *req)
 static void cb_download(struct usb_ep *ep, struct usb_request *req)
 {
 	char *cmd = req->buf;
-	char response[RESPONSE_LEN];
+	char response[FASTBOOT_RESPONSE_LEN];
 	unsigned int max;
 
 	strsep(&cmd, ":");
@@ -533,7 +544,7 @@ static void cb_continue(struct usb_ep *ep, struct usb_request *req)
 static void cb_flash(struct usb_ep *ep, struct usb_request *req)
 {
 	char *cmd = req->buf;
-	char response[RESPONSE_LEN];
+	char response[FASTBOOT_RESPONSE_LEN];
 
 	strsep(&cmd, ":");
 	if (!cmd) {
@@ -577,7 +588,7 @@ static void cb_oem(struct usb_ep *ep, struct usb_request *req)
 static void cb_erase(struct usb_ep *ep, struct usb_request *req)
 {
 	char *cmd = req->buf;
-	char response[RESPONSE_LEN];
+	char response[FASTBOOT_RESPONSE_LEN];
 
 	strsep(&cmd, ":");
 	if (!cmd) {
diff --git a/include/aboot.h b/include/aboot.h
index 162d81da6d9d..55da8336f20d 100644
--- a/include/aboot.h
+++ b/include/aboot.h
@@ -20,9 +20,6 @@ typedef struct sparse_storage {
 				 char *data);
 } sparse_storage_t;
 
-void fastboot_fail(const char *s);
-void fastboot_okay(const char *s);
-
 static inline int is_sparse_image(void *buf)
 {
 	sparse_header_t *s_header = (sparse_header_t *)buf;
diff --git a/include/fastboot.h b/include/fastboot.h
new file mode 100644
index 000000000000..db826d20bfef
--- /dev/null
+++ b/include/fastboot.h
@@ -0,0 +1,22 @@
+/*
+ * (C) Copyright 2008 - 2009
+ * Windriver, <www.windriver.com>
+ * Tom Rix <Tom.Rix at windriver.com>
+ *
+ * Copyright 2011 Sebastian Andrzej Siewior <bigeasy at linutronix.de>
+ *
+ * Copyright 2014 Linaro, Ltd.
+ * Rob Herring <robh at kernel.org>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+#ifndef _FASTBOOT_H_
+#define _FASTBOOT_H_
+
+/* The 64 defined bytes plus \0 */
+#define FASTBOOT_RESPONSE_LEN	(64 + 1)
+
+void fastboot_fail(char *response, const char *reason);
+void fastboot_okay(char *response, const char *reason);
+
+#endif /* _FASTBOOT_H_ */
-- 
2.5.0



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