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stmhal: Put fs_user_mount pointer in root ptr section of global state. 

Should fix issue #1393.
This commit is contained in:
Damien George 2015-07-27 23:52:56 +01:00
parent 92e9a5e0a7
commit f5d04750db
6 changed files with 45 additions and 48 deletions
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34
stmhal/diskio.c
View File

@ -78,10 +78,10 @@ DSTATUS disk_initialize (
#endif
case PD_USER:
if (fs_user_mount == NULL) {
if (MP_STATE_PORT(fs_user_mount) == NULL) {
return STA_NODISK;
}
if (fs_user_mount->writeblocks[0] == MP_OBJ_NULL) {
if (MP_STATE_PORT(fs_user_mount)->writeblocks[0] == MP_OBJ_NULL) {
return STA_PROTECT;
}
return 0;
@ -110,10 +110,10 @@ DSTATUS disk_status (
#endif
case PD_USER:
if (fs_user_mount == NULL) {
if (MP_STATE_PORT(fs_user_mount) == NULL) {
return STA_NODISK;
}
if (fs_user_mount->writeblocks[0] == MP_OBJ_NULL) {
if (MP_STATE_PORT(fs_user_mount)->writeblocks[0] == MP_OBJ_NULL) {
return STA_PROTECT;
}
return 0;
@ -151,13 +151,13 @@ DRESULT disk_read (
#endif
case PD_USER:
if (fs_user_mount == NULL) {
if (MP_STATE_PORT(fs_user_mount) == NULL) {
// nothing mounted
return RES_ERROR;
}
fs_user_mount->readblocks[2] = MP_OBJ_NEW_SMALL_INT(sector);
fs_user_mount->readblocks[3] = mp_obj_new_bytearray_by_ref(count * 512, buff);
mp_call_method_n_kw(2, 0, fs_user_mount->readblocks);
MP_STATE_PORT(fs_user_mount)->readblocks[2] = MP_OBJ_NEW_SMALL_INT(sector);
MP_STATE_PORT(fs_user_mount)->readblocks[3] = mp_obj_new_bytearray_by_ref(count * 512, buff);
mp_call_method_n_kw(2, 0, MP_STATE_PORT(fs_user_mount)->readblocks);
return RES_OK;
}
@ -194,17 +194,17 @@ DRESULT disk_write (
#endif
case PD_USER:
if (fs_user_mount == NULL) {
if (MP_STATE_PORT(fs_user_mount) == NULL) {
// nothing mounted
return RES_ERROR;
}
if (fs_user_mount->writeblocks[0] == MP_OBJ_NULL) {
if (MP_STATE_PORT(fs_user_mount)->writeblocks[0] == MP_OBJ_NULL) {
// read-only block device
return RES_ERROR;
}
fs_user_mount->writeblocks[2] = MP_OBJ_NEW_SMALL_INT(sector);
fs_user_mount->writeblocks[3] = mp_obj_new_bytearray_by_ref(count * 512, (void*)buff);
mp_call_method_n_kw(2, 0, fs_user_mount->writeblocks);
MP_STATE_PORT(fs_user_mount)->writeblocks[2] = MP_OBJ_NEW_SMALL_INT(sector);
MP_STATE_PORT(fs_user_mount)->writeblocks[3] = mp_obj_new_bytearray_by_ref(count * 512, (void*)buff);
mp_call_method_n_kw(2, 0, MP_STATE_PORT(fs_user_mount)->writeblocks);
return RES_OK;
}
@ -251,14 +251,14 @@ DRESULT disk_ioctl (
#endif
case PD_USER:
if (fs_user_mount == NULL) {
if (MP_STATE_PORT(fs_user_mount) == NULL) {
// nothing mounted
return RES_ERROR;
}
switch (cmd) {
case CTRL_SYNC:
if (fs_user_mount->sync[0] != MP_OBJ_NULL) {
mp_call_method_n_kw(0, 0, fs_user_mount->sync);
if (MP_STATE_PORT(fs_user_mount)->sync[0] != MP_OBJ_NULL) {
mp_call_method_n_kw(0, 0, MP_STATE_PORT(fs_user_mount)->sync);
}
return RES_OK;
@ -267,7 +267,7 @@ DRESULT disk_ioctl (
return RES_OK;
case GET_SECTOR_COUNT: {
mp_obj_t ret = mp_call_method_n_kw(0, 0, fs_user_mount->count);
mp_obj_t ret = mp_call_method_n_kw(0, 0, MP_STATE_PORT(fs_user_mount)->count);
*((DWORD*)buff) = mp_obj_get_int(ret);
return RES_OK;
}

8
stmhal/ffconf.c
View File

@ -26,7 +26,7 @@
#include <string.h>
#include "py/obj.h"
#include "py/mpstate.h"
#include "lib/fatfs/ff.h"
#include "ffconf.h"
#include "fsusermount.h"
@ -63,7 +63,7 @@ int ff_get_ldnumber (const TCHAR **path) {
return 0;
} else if (check_path(path, "/sd", 3)) {
return 1;
} else if (fs_user_mount != NULL && check_path(path, fs_user_mount->str, fs_user_mount->len)) {
} else if (MP_STATE_PORT(fs_user_mount) != NULL && check_path(path, MP_STATE_PORT(fs_user_mount)->str, MP_STATE_PORT(fs_user_mount)->len)) {
return 2;
} else {
return -1;
@ -78,7 +78,7 @@ void ff_get_volname(BYTE vol, TCHAR **dest) {
memcpy(*dest, "/sd", 3);
*dest += 3;
} else {
memcpy(*dest, fs_user_mount->str, fs_user_mount->len);
*dest += fs_user_mount->len;
memcpy(*dest, MP_STATE_PORT(fs_user_mount)->str, MP_STATE_PORT(fs_user_mount)->len);
*dest += MP_STATE_PORT(fs_user_mount)->len;
}
}

39
stmhal/fsusermount.c
View File

@ -29,9 +29,6 @@
#include "lib/fatfs/ff.h"
#include "fsusermount.h"
// for user-mountable block device
fs_user_mount_t *fs_user_mount;
STATIC mp_obj_t pyb_mount(mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_readonly, MP_ARG_KW_ONLY | MP_ARG_BOOL, {.u_bool = false} },
@ -51,46 +48,46 @@ STATIC mp_obj_t pyb_mount(mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *
if (device == mp_const_none) {
// umount
FRESULT res = FR_NO_FILESYSTEM;
if (fs_user_mount != NULL) {
res = f_mount(NULL, fs_user_mount->str, 0);
m_del_obj(fs_user_mount_t, fs_user_mount);
fs_user_mount = NULL;
if (MP_STATE_PORT(fs_user_mount) != NULL) {
res = f_mount(NULL, MP_STATE_PORT(fs_user_mount)->str, 0);
m_del_obj(fs_user_mount_t, MP_STATE_PORT(fs_user_mount));
MP_STATE_PORT(fs_user_mount) = NULL;
}
if (res != FR_OK) {
nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, "can't umount"));
}
} else {
// mount
if (fs_user_mount != NULL) {
if (MP_STATE_PORT(fs_user_mount) != NULL) {
nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, "device already mounted"));
}
// create new object
fs_user_mount = m_new_obj(fs_user_mount_t);
fs_user_mount->str = mnt_str;
fs_user_mount->len = mnt_len;
MP_STATE_PORT(fs_user_mount) = m_new_obj(fs_user_mount_t);
MP_STATE_PORT(fs_user_mount)->str = mnt_str;
MP_STATE_PORT(fs_user_mount)->len = mnt_len;
// load block protocol methods
mp_load_method(device, MP_QSTR_readblocks, fs_user_mount->readblocks);
mp_load_method_maybe(device, MP_QSTR_writeblocks, fs_user_mount->writeblocks);
mp_load_method_maybe(device, MP_QSTR_sync, fs_user_mount->sync);
mp_load_method(device, MP_QSTR_count, fs_user_mount->count);
mp_load_method(device, MP_QSTR_readblocks, MP_STATE_PORT(fs_user_mount)->readblocks);
mp_load_method_maybe(device, MP_QSTR_writeblocks, MP_STATE_PORT(fs_user_mount)->writeblocks);
mp_load_method_maybe(device, MP_QSTR_sync, MP_STATE_PORT(fs_user_mount)->sync);
mp_load_method(device, MP_QSTR_count, MP_STATE_PORT(fs_user_mount)->count);
// Read-only device indicated by writeblocks[0] == MP_OBJ_NULL.
// User can specify read-only device by:
// 1. readonly=True keyword argument
// 2. nonexistent writeblocks method (then writeblocks[0] == MP_OBJ_NULL already)
if (args[0].u_bool) {
fs_user_mount->writeblocks[0] = MP_OBJ_NULL;
MP_STATE_PORT(fs_user_mount)->writeblocks[0] = MP_OBJ_NULL;
}
// mount the block device
FRESULT res = f_mount(&fs_user_mount->fatfs, fs_user_mount->str, 1);
FRESULT res = f_mount(&MP_STATE_PORT(fs_user_mount)->fatfs, MP_STATE_PORT(fs_user_mount)->str, 1);
// check the result
if (res == FR_OK) {
} else if (res == FR_NO_FILESYSTEM && args[1].u_bool) {
res = f_mkfs(fs_user_mount->str, 1, 0);
res = f_mkfs(MP_STATE_PORT(fs_user_mount)->str, 1, 0);
if (res != FR_OK) {
nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, "can't mkfs"));
}
@ -99,15 +96,15 @@ STATIC mp_obj_t pyb_mount(mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *
}
/*
if (fs_user_mount->writeblocks[0] == MP_OBJ_NULL) {
if (MP_STATE_PORT(fs_user_mount)->writeblocks[0] == MP_OBJ_NULL) {
printf("mounted read-only");
} else {
printf("mounted read-write");
}
DWORD nclst;
FATFS *fatfs;
f_getfree(fs_user_mount.str, &nclst, &fatfs);
printf(" on %s with %u bytes free\n", fs_user_mount.str, (uint)(nclst * fatfs->csize * 512));
f_getfree(MP_STATE_PORT(fs_user_mount)->str, &nclst, &fatfs);
printf(" on %s with %u bytes free\n", MP_STATE_PORT(fs_user_mount)->str, (uint)(nclst * fatfs->csize * 512));
*/
}
return mp_const_none;

2
stmhal/fsusermount.h
View File

@ -34,6 +34,4 @@ typedef struct _fs_user_mount_t {
FATFS fatfs;
} fs_user_mount_t;
extern fs_user_mount_t *fs_user_mount;
MP_DECLARE_CONST_FUN_OBJ(pyb_mount_obj);

7
stmhal/moduos.c
View File

@ -27,8 +27,7 @@
#include <stdint.h>
#include <string.h>
#include "py/nlr.h"
#include "py/obj.h"
#include "py/mpstate.h"
#include "py/objtuple.h"
#include "py/objstr.h"
#include "genhdr/mpversion.h"
@ -148,8 +147,8 @@ STATIC mp_obj_t os_listdir(mp_uint_t n_args, const mp_obj_t *args) {
if (sd_in_root()) {
mp_obj_list_append(dir_list, MP_OBJ_NEW_QSTR(MP_QSTR_sd));
}
if (fs_user_mount != NULL) {
mp_obj_list_append(dir_list, mp_obj_new_str(fs_user_mount->str + 1, fs_user_mount->len - 1, false));
if (MP_STATE_PORT(fs_user_mount) != NULL) {
mp_obj_list_append(dir_list, mp_obj_new_str(MP_STATE_PORT(fs_user_mount)->str + 1, MP_STATE_PORT(fs_user_mount)->len - 1, false));
}
return dir_list;
}

3
stmhal/mpconfigport.h
View File

@ -166,6 +166,9 @@ extern const struct _mp_obj_module_t mp_module_network;
/* pointers to all CAN objects (if they have been created) */ \
struct _pyb_can_obj_t *pyb_can_obj_all[2]; \
\
/* for user-mountable block device */ \
struct _fs_user_mount_t *fs_user_mount; \
\
/* list of registered NICs */ \
mp_obj_list_t mod_network_nic_list; \