X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=drivers%2Fdfu%2Fdfu.c;h=e7c91193b9899a3e39302557ab6ab0199cd162cf;hb=f198bbac6695ecaac281e8dc5c5d74464ac82b3e;hp=63a5a442ef854b0a882132309baf45730e8870f4;hpb=57da060755ac757237bd8781f7b2aef80167301e;p=u-boot

diff --git a/drivers/dfu/dfu.c b/drivers/dfu/dfu.c
index 63a5a442ef..e7c91193b9 100644
--- a/drivers/dfu/dfu.c
+++ b/drivers/dfu/dfu.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * dfu.c -- DFU back-end routines
  *
  * Copyright (C) 2012 Samsung Electronics
  * author: Lukasz Majewski <l.majewski@samsung.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
@@ -62,16 +61,16 @@ int dfu_init_env_entities(char *interface, char *devstr)
 #ifdef CONFIG_SET_DFU_ALT_INFO
 	set_dfu_alt_info(interface, devstr);
 #endif
-	str_env = getenv("dfu_alt_info");
+	str_env = env_get("dfu_alt_info");
 	if (!str_env) {
-		error("\"dfu_alt_info\" env variable not defined!\n");
+		pr_err("\"dfu_alt_info\" env variable not defined!\n");
 		return -EINVAL;
 	}
 
 	env_bkp = strdup(str_env);
 	ret = dfu_config_entities(env_bkp, interface, devstr);
 	if (ret) {
-		error("DFU entities configuration failed!\n");
+		pr_err("DFU entities configuration failed!\n");
 		return ret;
 	}
 
@@ -101,7 +100,7 @@ unsigned char *dfu_get_buf(struct dfu_entity *dfu)
 	if (dfu_buf != NULL)
 		return dfu_buf;
 
-	s = getenv("dfu_bufsiz");
+	s = env_get("dfu_bufsiz");
 	if (s)
 		dfu_buf_size = (unsigned long)simple_strtol(s, NULL, 0);
 
@@ -123,7 +122,7 @@ static char *dfu_get_hash_algo(void)
 {
 	char *s;
 
-	s = getenv("dfu_hash_algo");
+	s = env_get("dfu_hash_algo");
 	if (!s)
 		return NULL;
 
@@ -132,7 +131,7 @@ static char *dfu_get_hash_algo(void)
 		return s;
 	}
 
-	error("DFU hash method: %s not supported!\n", s);
+	pr_err("DFU hash method: %s not supported!\n", s);
 	return NULL;
 }
 
@@ -171,8 +170,8 @@ void dfu_transaction_cleanup(struct dfu_entity *dfu)
 	dfu->crc = 0;
 	dfu->offset = 0;
 	dfu->i_blk_seq_num = 0;
-	dfu->i_buf_start = dfu_buf;
-	dfu->i_buf_end = dfu_buf;
+	dfu->i_buf_start = dfu_get_buf(dfu);
+	dfu->i_buf_end = dfu->i_buf_start;
 	dfu->i_buf = dfu->i_buf_start;
 	dfu->r_left = 0;
 	dfu->b_left = 0;
@@ -181,6 +180,32 @@ void dfu_transaction_cleanup(struct dfu_entity *dfu)
 	dfu->inited = 0;
 }
 
+int dfu_transaction_initiate(struct dfu_entity *dfu, bool read)
+{
+	int ret = 0;
+
+	if (dfu->inited)
+		return 0;
+
+	dfu_transaction_cleanup(dfu);
+
+	if (dfu->i_buf_start == NULL)
+		return -ENOMEM;
+
+	dfu->i_buf_end = dfu->i_buf_start + dfu_get_buf_size();
+
+	if (read) {
+		ret = dfu->get_medium_size(dfu, &dfu->r_left);
+		if (ret < 0)
+			return ret;
+		debug("%s: %s %lld [B]\n", __func__, dfu->name, dfu->r_left);
+	}
+
+	dfu->inited = 1;
+
+	return 0;
+}
+
 int dfu_flush(struct dfu_entity *dfu, void *buf, int size, int blk_seq_num)
 {
 	int ret = 0;
@@ -209,20 +234,9 @@ int dfu_write(struct dfu_entity *dfu, void *buf, int size, int blk_seq_num)
 	      __func__, dfu->name, buf, size, blk_seq_num, dfu->offset,
 	      (unsigned long)(dfu->i_buf - dfu->i_buf_start));
 
-	if (!dfu->inited) {
-		/* initial state */
-		dfu->crc = 0;
-		dfu->offset = 0;
-		dfu->bad_skip = 0;
-		dfu->i_blk_seq_num = 0;
-		dfu->i_buf_start = dfu_get_buf(dfu);
-		if (dfu->i_buf_start == NULL)
-			return -ENOMEM;
-		dfu->i_buf_end = dfu_get_buf(dfu) + dfu_buf_size;
-		dfu->i_buf = dfu->i_buf_start;
-
-		dfu->inited = 1;
-	}
+	ret = dfu_transaction_initiate(dfu, false);
+	if (ret < 0)
+		return ret;
 
 	if (dfu->i_blk_seq_num != blk_seq_num) {
 		printf("%s: Wrong sequence number! [%d] [%d]\n",
@@ -258,7 +272,7 @@ int dfu_write(struct dfu_entity *dfu, void *buf, int size, int blk_seq_num)
 
 	/* we should be in buffer now (if not then size too large) */
 	if ((dfu->i_buf + size) > dfu->i_buf_end) {
-		error("Buffer overflow! (0x%p + 0x%x > 0x%p)\n", dfu->i_buf,
+		pr_err("Buffer overflow! (0x%p + 0x%x > 0x%p)\n", dfu->i_buf,
 		      size, dfu->i_buf_end);
 		dfu_transaction_cleanup(dfu);
 		return -1;
@@ -338,28 +352,9 @@ int dfu_read(struct dfu_entity *dfu, void *buf, int size, int blk_seq_num)
 	debug("%s: name: %s buf: 0x%p size: 0x%x p_num: 0x%x i_buf: 0x%p\n",
 	       __func__, dfu->name, buf, size, blk_seq_num, dfu->i_buf);
 
-	if (!dfu->inited) {
-		dfu->i_buf_start = dfu_get_buf(dfu);
-		if (dfu->i_buf_start == NULL)
-			return -ENOMEM;
-
-		ret = dfu->get_medium_size(dfu, &dfu->r_left);
-		if (ret < 0)
-			return ret;
-
-		debug("%s: %s %lld [B]\n", __func__, dfu->name, dfu->r_left);
-
-		dfu->i_blk_seq_num = 0;
-		dfu->crc = 0;
-		dfu->offset = 0;
-		dfu->i_buf_end = dfu_get_buf(dfu) + dfu_buf_size;
-		dfu->i_buf = dfu->i_buf_start;
-		dfu->b_left = 0;
-
-		dfu->bad_skip = 0;
-
-		dfu->inited = 1;
-	}
+	ret = dfu_transaction_initiate(dfu, true);
+	if (ret < 0)
+		return ret;
 
 	if (dfu->i_blk_seq_num != blk_seq_num) {
 		printf("%s: Wrong sequence number! [%d] [%d]\n",
@@ -455,7 +450,7 @@ int dfu_config_entities(char *env, char *interface, char *devstr)
 	if (s) {
 		ret = hash_lookup_algo(s, &dfu_hash_algo);
 		if (ret)
-			error("Hash algorithm %s not supported\n", s);
+			pr_err("Hash algorithm %s not supported\n", s);
 	}
 
 	dfu = calloc(sizeof(*dfu), dfu_alt_num);
@@ -580,7 +575,7 @@ int dfu_write_from_mem_addr(struct dfu_entity *dfu, void *buf, int size)
 		      dp, left, write);
 		ret = dfu_write(dfu, dp, write, i);
 		if (ret) {
-			error("DFU write failed\n");
+			pr_err("DFU write failed\n");
 			return ret;
 		}
 
@@ -590,7 +585,7 @@ int dfu_write_from_mem_addr(struct dfu_entity *dfu, void *buf, int size)
 
 	ret = dfu_flush(dfu, NULL, 0, i);
 	if (ret)
-		error("DFU flush failed!");
+		pr_err("DFU flush failed!");
 
 	return ret;
 }