[U-Boot] [PATCH 1/4] dfu: defer parsing of device string to IO backend
Stephen Warren
swarren at wwwdotorg.org
Thu Jun 12 00:03:33 CEST 2014
From: Stephen Warren <swarren at nvidia.com>
Devices are not all identified by a single integer. To support
this, defer the parsing of the device string to the IO backed, so that
it can apply the appropriate rules.
SPI devices are specified as controller:chip_select. SPI/SF support will
be added soon.
MMC devices can also be specified as controller[.hwpart][:partition] in
many commands, although we don't support that syntax in DFU.
Signed-off-by: Stephen Warren <swarren at nvidia.com>
---
common/cmd_dfu.c | 3 +--
drivers/dfu/dfu.c | 20 ++++++++++----------
drivers/dfu/dfu_mmc.c | 21 ++++++++++++---------
drivers/dfu/dfu_nand.c | 2 +-
drivers/dfu/dfu_ram.c | 2 +-
include/dfu.h | 22 +++++++++++++---------
6 files changed, 38 insertions(+), 32 deletions(-)
diff --git a/common/cmd_dfu.c b/common/cmd_dfu.c
index 433bddd5d2bd..2633b30e556f 100644
--- a/common/cmd_dfu.c
+++ b/common/cmd_dfu.c
@@ -24,8 +24,7 @@ static int do_dfu(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
int ret, i = 0;
- ret = dfu_init_env_entities(interface, simple_strtoul(devstring,
- NULL, 10));
+ ret = dfu_init_env_entities(interface, devstring);
if (ret)
goto done;
diff --git a/drivers/dfu/dfu.c b/drivers/dfu/dfu.c
index 1bf66d0613c9..26d3b44e40f5 100644
--- a/drivers/dfu/dfu.c
+++ b/drivers/dfu/dfu.c
@@ -44,7 +44,7 @@ static int dfu_find_alt_num(const char *s)
return ++i;
}
-int dfu_init_env_entities(char *interface, int dev)
+int dfu_init_env_entities(char *interface, char *devstr)
{
const char *str_env;
char *env_bkp;
@@ -57,7 +57,7 @@ int dfu_init_env_entities(char *interface, int dev)
}
env_bkp = strdup(str_env);
- ret = dfu_config_entities(env_bkp, interface, dev);
+ ret = dfu_config_entities(env_bkp, interface, devstr);
if (ret) {
error("DFU entities configuration failed!\n");
return ret;
@@ -389,26 +389,25 @@ int dfu_read(struct dfu_entity *dfu, void *buf, int size, int blk_seq_num)
}
static int dfu_fill_entity(struct dfu_entity *dfu, char *s, int alt,
- char *interface, int num)
+ char *interface, char *devstr)
{
char *st;
- debug("%s: %s interface: %s num: %d\n", __func__, s, interface, num);
+ debug("%s: %s interface: %s dev: %s\n", __func__, s, interface, devstr);
st = strsep(&s, " ");
strcpy(dfu->name, st);
- dfu->dev_num = num;
dfu->alt = alt;
/* Specific for mmc device */
if (strcmp(interface, "mmc") == 0) {
- if (dfu_fill_entity_mmc(dfu, s))
+ if (dfu_fill_entity_mmc(dfu, devstr, s))
return -1;
} else if (strcmp(interface, "nand") == 0) {
- if (dfu_fill_entity_nand(dfu, s))
+ if (dfu_fill_entity_nand(dfu, devstr, s))
return -1;
} else if (strcmp(interface, "ram") == 0) {
- if (dfu_fill_entity_ram(dfu, s))
+ if (dfu_fill_entity_ram(dfu, devstr, s))
return -1;
} else {
printf("%s: Device %s not (yet) supported!\n",
@@ -434,7 +433,7 @@ void dfu_free_entities(void)
alt_num_cnt = 0;
}
-int dfu_config_entities(char *env, char *interface, int num)
+int dfu_config_entities(char *env, char *interface, char *devstr)
{
struct dfu_entity *dfu;
int i, ret;
@@ -457,7 +456,8 @@ int dfu_config_entities(char *env, char *interface, int num)
for (i = 0; i < dfu_alt_num; i++) {
s = strsep(&env, ";");
- ret = dfu_fill_entity(&dfu[i], s, alt_num_cnt, interface, num);
+ ret = dfu_fill_entity(&dfu[i], s, alt_num_cnt, interface,
+ devstr);
if (ret)
return -1;
diff --git a/drivers/dfu/dfu_mmc.c b/drivers/dfu/dfu_mmc.c
index 322bd8c5d2de..72fa03eedaec 100644
--- a/drivers/dfu/dfu_mmc.c
+++ b/drivers/dfu/dfu_mmc.c
@@ -27,7 +27,7 @@ static int mmc_access_part(struct dfu_entity *dfu, struct mmc *mmc, int part)
if (part == mmc->part_num)
return 0;
- ret = mmc_switch_part(dfu->dev_num, part);
+ ret = mmc_switch_part(dfu->data.mmc.dev_num, part);
if (ret) {
error("Cannot switch to partition %d\n", part);
return ret;
@@ -40,7 +40,7 @@ static int mmc_access_part(struct dfu_entity *dfu, struct mmc *mmc, int part)
static int mmc_block_op(enum dfu_op op, struct dfu_entity *dfu,
u64 offset, void *buf, long *len)
{
- struct mmc *mmc = find_mmc_device(dfu->dev_num);
+ struct mmc *mmc = find_mmc_device(dfu->data.mmc.dev_num);
u32 blk_start, blk_count, n = 0;
int ret, part_num_bkp = 0;
@@ -67,15 +67,15 @@ static int mmc_block_op(enum dfu_op op, struct dfu_entity *dfu,
}
debug("%s: %s dev: %d start: %d cnt: %d buf: 0x%p\n", __func__,
- op == DFU_OP_READ ? "MMC READ" : "MMC WRITE", dfu->dev_num,
- blk_start, blk_count, buf);
+ op == DFU_OP_READ ? "MMC READ" : "MMC WRITE",
+ dfu->data.mmc.dev_num, blk_start, blk_count, buf);
switch (op) {
case DFU_OP_READ:
- n = mmc->block_dev.block_read(dfu->dev_num, blk_start,
+ n = mmc->block_dev.block_read(dfu->data.mmc.dev_num, blk_start,
blk_count, buf);
break;
case DFU_OP_WRITE:
- n = mmc->block_dev.block_write(dfu->dev_num, blk_start,
+ n = mmc->block_dev.block_write(dfu->data.mmc.dev_num, blk_start,
blk_count, buf);
break;
default:
@@ -270,7 +270,7 @@ int dfu_read_medium_mmc(struct dfu_entity *dfu, u64 offset, void *buf,
* 4th (optional):
* mmcpart <num> (access to HW eMMC partitions)
*/
-int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *s)
+int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *devstr, char *s)
{
const char *entity_type;
size_t second_arg;
@@ -281,6 +281,8 @@ int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *s)
const char *argv[3];
const char **parg = argv;
+ dfu->data.mmc.dev_num = simple_strtoul(devstr, NULL, 10);
+
for (; parg < argv + sizeof(argv) / sizeof(*argv); ++parg) {
*parg = strsep(&s, " ");
if (*parg == NULL) {
@@ -297,9 +299,10 @@ int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *s)
second_arg = simple_strtoul(argv[1], NULL, 0);
third_arg = simple_strtoul(argv[2], NULL, 0);
- mmc = find_mmc_device(dfu->dev_num);
+ mmc = find_mmc_device(dfu->data.mmc.dev_num);
if (mmc == NULL) {
- error("Couldn't find MMC device no. %d.\n", dfu->dev_num);
+ error("Couldn't find MMC device no. %d.\n",
+ dfu->data.mmc.dev_num);
return -ENODEV;
}
diff --git a/drivers/dfu/dfu_nand.c b/drivers/dfu/dfu_nand.c
index e1c9a8849246..f9ee18999ab7 100644
--- a/drivers/dfu/dfu_nand.c
+++ b/drivers/dfu/dfu_nand.c
@@ -179,7 +179,7 @@ unsigned int dfu_polltimeout_nand(struct dfu_entity *dfu)
return DFU_DEFAULT_POLL_TIMEOUT;
}
-int dfu_fill_entity_nand(struct dfu_entity *dfu, char *s)
+int dfu_fill_entity_nand(struct dfu_entity *dfu, char *devstr, char *s)
{
char *st;
int ret, dev, part;
diff --git a/drivers/dfu/dfu_ram.c b/drivers/dfu/dfu_ram.c
index b6c6e60c443c..e094a946f6be 100644
--- a/drivers/dfu/dfu_ram.c
+++ b/drivers/dfu/dfu_ram.c
@@ -52,7 +52,7 @@ static int dfu_read_medium_ram(struct dfu_entity *dfu, u64 offset,
return dfu_transfer_medium_ram(DFU_OP_READ, dfu, offset, buf, len);
}
-int dfu_fill_entity_ram(struct dfu_entity *dfu, char *s)
+int dfu_fill_entity_ram(struct dfu_entity *dfu, char *devstr, char *s)
{
char *st;
diff --git a/include/dfu.h b/include/dfu.h
index df720310f2cc..21390aa9b7b3 100644
--- a/include/dfu.h
+++ b/include/dfu.h
@@ -39,6 +39,8 @@ enum dfu_op {
};
struct mmc_internal_data {
+ int dev_num;
+
/* RAW programming */
unsigned int lba_start;
unsigned int lba_size;
@@ -87,7 +89,6 @@ struct dfu_entity {
char name[DFU_NAME_SIZE];
int alt;
void *dev_private;
- int dev_num;
enum dfu_device_type dev_type;
enum dfu_layout layout;
@@ -125,7 +126,7 @@ struct dfu_entity {
unsigned int inited:1;
};
-int dfu_config_entities(char *s, char *interface, int num);
+int dfu_config_entities(char *s, char *interface, char *devstr);
void dfu_free_entities(void);
void dfu_show_entities(void);
int dfu_get_alt_number(void);
@@ -136,7 +137,7 @@ char *dfu_extract_token(char** e, int *n);
void dfu_trigger_reset(void);
int dfu_get_alt(char *name);
bool dfu_reset(void);
-int dfu_init_env_entities(char *interface, int dev);
+int dfu_init_env_entities(char *interface, char *devstr);
unsigned char *dfu_get_buf(void);
unsigned char *dfu_free_buf(void);
unsigned long dfu_get_buf_size(void);
@@ -146,9 +147,10 @@ int dfu_write(struct dfu_entity *de, void *buf, int size, int blk_seq_num);
int dfu_flush(struct dfu_entity *de, void *buf, int size, int blk_seq_num);
/* Device specific */
#ifdef CONFIG_DFU_MMC
-extern int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *s);
+extern int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *devstr, char *s);
#else
-static inline int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *s)
+static inline int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *devstr,
+ char *s)
{
puts("MMC support not available!\n");
return -1;
@@ -156,9 +158,10 @@ static inline int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *s)
#endif
#ifdef CONFIG_DFU_NAND
-extern int dfu_fill_entity_nand(struct dfu_entity *dfu, char *s);
+extern int dfu_fill_entity_nand(struct dfu_entity *dfu, char *devstr, char *s);
#else
-static inline int dfu_fill_entity_nand(struct dfu_entity *dfu, char *s)
+static inline int dfu_fill_entity_nand(struct dfu_entity *dfu, char *devstr,
+ char *s)
{
puts("NAND support not available!\n");
return -1;
@@ -166,9 +169,10 @@ static inline int dfu_fill_entity_nand(struct dfu_entity *dfu, char *s)
#endif
#ifdef CONFIG_DFU_RAM
-extern int dfu_fill_entity_ram(struct dfu_entity *dfu, char *s);
+extern int dfu_fill_entity_ram(struct dfu_entity *dfu, char *devstr, char *s);
#else
-static inline int dfu_fill_entity_ram(struct dfu_entity *dfu, char *s)
+static inline int dfu_fill_entity_ram(struct dfu_entity *dfu, char *devstr,
+ char *s)
{
puts("RAM support not available!\n");
return -1;
--
1.8.1.5
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