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Onda VX747/VX777: only enable SD clock when transferring data

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24172 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Maurus Cuelenaere 2010-01-03 17:32:15 +00:00
parent 69b182dc9a
commit 443cba7507
1 changed files with 19 additions and 8 deletions
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27
firmware/target/mips/ingenic_jz47xx/ata-sd-jz4740.c
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@ -1216,6 +1216,7 @@ static int sd_init_device(void)
while((retval = sd_init_card_state(&init_req)) == SD_INIT_DOING);
retval = (retval == SD_INIT_PASSED ? sd_select_card() : -1);
__cpm_stop_msc(); /* disable SD clock */
mutex_unlock(&sd_mtx);
return retval;
@ -1250,13 +1251,26 @@ tCardInfo* card_get_info_target(int card_no)
return &card;
}
static inline void sd_start_transfer(void)
{
mutex_lock(&sd_mtx);
__cpm_start_msc();
led(true);
}
static inline void sd_stop_transfer(void)
{
led(false);
__cpm_stop_msc();
mutex_unlock(&sd_mtx);
}
int sd_read_sectors(IF_MV2(int drive,) unsigned long start, int count, void* buf)
{
#ifdef HAVE_MULTIVOLUME
(void)drive;
#endif
mutex_lock(&sd_mtx);
led(true);
sd_start_transfer();
struct sd_request request;
struct sd_response_r1 r1;
@ -1300,8 +1314,7 @@ int sd_read_sectors(IF_MV2(int drive,) unsigned long start, int count, void* buf
goto err;
err:
led(false);
mutex_unlock(&sd_mtx);
sd_stop_transfer();
return retval;
}
@ -1311,8 +1324,7 @@ int sd_write_sectors(IF_MV2(int drive,) unsigned long start, int count, const vo
#ifdef HAVE_MULTIVOLUME
(void)drive;
#endif
mutex_lock(&sd_mtx);
led(true);
sd_start_transfer();
struct sd_request request;
struct sd_response_r1 r1;
@ -1357,8 +1369,7 @@ int sd_write_sectors(IF_MV2(int drive,) unsigned long start, int count, const vo
goto err;
err:
led(false);
mutex_unlock(&sd_mtx);
sd_stop_transfer();
return retval;
}