[U-Boot] [PATCH v6 4/4] usb/gadget: fastboot: implement sparse format

[Steve Rae <srae@broadcom.com>]

Hi Michael

On 14-08-26 10:07 PM, Michael Trimarchi wrote:
> Hi
>
> Il 26/ago/2014 20:46 "Steve Rae" <srae@broadcom.com> ha scritto:
>>
>> - add capability to "fastboot flash" with sparse format images
>>
>> Signed-off-by: Steve Rae <srae@broadcom.com>
>> Acked-by: Lukasz Majewski <l.majewski@samsung.com>
>> ---
>>
>> Changes in v6:
>> - remove excess braces
>>
>> Changes in v5:
>> - use the common/aboot.c for the "sparse format" handling
>>
>> Changes in v4:
>> - rearranged "sparse format" support in this patchset, in order to
> isolate...
>>
>> Changes in v3: None
>> Changes in v2: None
>>
>>   common/Makefile |  1 +
>>   common/fb_mmc.c | 32 ++++++++++++++++++++++----------
>>   2 files changed, 23 insertions(+), 10 deletions(-)
>>
>> diff --git a/common/Makefile b/common/Makefile
>> index daebe39..bc53078 100644
>> --- a/common/Makefile
>> +++ b/common/Makefile
>> @@ -268,6 +268,7 @@ obj-y += stdio.o
>>
>>   # This option is not just y/n - it can have a numeric value
>>   ifdef CONFIG_FASTBOOT_FLASH_MMC_DEV
>> +obj-y += aboot.o
>>   obj-y += fb_mmc.o
>>   endif
>>
>> diff --git a/common/fb_mmc.c b/common/fb_mmc.c
>> index 14d3982..fb06d8a 100644
>> --- a/common/fb_mmc.c
>> +++ b/common/fb_mmc.c
>> @@ -7,16 +7,24 @@
>>   #include <common.h>
>>   #include <fb_mmc.h>
>>   #include <part.h>
>> +#include <aboot.h>
>> +#include <sparse_format.h>
>>
>>   /* The 64 defined bytes plus the '\0' */
>>   #define RESPONSE_LEN   (64 + 1)
>>
>>   static char *response_str;
>>
>> -static void fastboot_resp(const char *s)
>> +void fastboot_fail(const char *s)
>>   {
>> -       strncpy(response_str, s, RESPONSE_LEN);
>> -       response_str[RESPONSE_LEN - 1] = '\0';
>> +       strncpy(response_str, "FAIL", 4);
>> +       strncat(response_str, s, RESPONSE_LEN - 4 - 1);
>> +}
>> +
>
> Change not connect to bug description. If you remove static this should go
> in some header. For now it's only overhead.

Sorry for the confusion....
(1) the file "include/aboot.h" defines these two functions, and is part 
of the patchset that this series depends on (as documented in the cover 
letter):
	This series depends on:
	  http://patchwork.ozlabs.org/patch/382443/ (to 382446)
(2) this is the implementation of those functions that are required by 
that patchset
(3) so I thought the the commit message was sufficient -- implying that 
in order to implement the "sparse format" (from aboot.c) that these 
changes are required...
If required, I could submit a "v7" with more information in the commit 
message....
Please let me know!
Thanks, Steve

>
>> +void fastboot_okay(const char *s)
>> +{
>> +       strncpy(response_str, "OKAY", 4);
>> +       strncat(response_str, s, RESPONSE_LEN - 4 - 1);
>>   }
>>
>
> Ditto
>
> Michael
>
>>   static void write_raw_image(block_dev_desc_t *dev_desc, disk_partition_t
> *info,
>> @@ -32,7 +40,7 @@ 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_resp("FAILtoo large for partition");
>> +               fastboot_fail("too large for partition");
>>                  return;
>>          }
>>
>> @@ -42,13 +50,13 @@ 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_resp("FAILfailed writing to device");
>> +               fastboot_fail("failed writing to device");
>>                  return;
>>          }
>>
>>          printf("........ wrote " LBAFU " bytes to '%s'\n", blkcnt *
> info->blksz,
>>                 part_name);
>> -       fastboot_resp("OKAY");
>> +       fastboot_okay("");
>>   }
>>
>>   void fb_mmc_flash_write(const char *cmd, void *download_buffer,
>> @@ -64,17 +72,21 @@ 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_resp("FAILinvalid mmc device");
>> +               fastboot_fail("invalid mmc device");
>>                  return;
>>          }
>>
>>          ret = get_partition_info_efi_by_name(dev_desc, cmd, &info);
>>          if (ret) {
>>                  error("cannot find partition: '%s'\n", cmd);
>> -               fastboot_resp("FAILcannot find partition");
>> +               fastboot_fail("cannot find partition");
>>                  return;
>>          }
>>
>> -       write_raw_image(dev_desc, &info, cmd, download_buffer,
>> -                       download_bytes);
>> +       if (is_sparse_image(download_buffer))
>> +               write_sparse_image(dev_desc, &info, cmd, download_buffer,
>> +                                  download_bytes);
>> +       else
>> +               write_raw_image(dev_desc, &info, cmd, download_buffer,
>> +                               download_bytes);
>>   }
>> --
>> 1.8.5
>>
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