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plugin_get_buffer() makes my plugin smaller, can get the sector buffer at runtime

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@3895 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jörg Hohensohn 2003-07-27 22:06:58 +00:00
parent 066857e9b9
commit 9d3e5c6d1d
1 changed files with 80 additions and 71 deletions
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51
apps/plugins/rockbox_flash.c
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@ -7,9 +7,10 @@
* \/ \/ \/ \/ \/ * \/ \/ \/ \/ \/
* $Id$ * $Id$
* *
* Plugin for reprogramming only the second Rockbox image. * Plugin for reprogramming only the second image in Flash ROM.
* !!! DON'T MESS WITH THIS CODE UNLESS YOU'RE ABSOLUTELY SHURE WHAT YOU DO !!!
* *
* Copyright (C) 2003 Jörg Hohensohn [IDC]Dragon * Copyright (C) 2003 Jörg Hohensohn aka [IDC]Dragon
* *
* All files in this archive are subject to the GNU General Public License. * All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement. * See the file COPYING in the source tree root for full license agreement.
@ -78,8 +79,7 @@ typedef struct
static struct plugin_api* rb; /* here is a global api struct pointer */ static struct plugin_api* rb; /* here is a global api struct pointer */
#define SEC_SIZE 4096 /* size of one flash sector */ static UINT8* sector; /* better not place this on the stack... */
static UINT8 sector[SEC_SIZE]; /* better not place this on the stack... */
/***************** Flash Functions *****************/ /***************** Flash Functions *****************/
@ -120,8 +120,8 @@ bool ReadID(volatile UINT8* pBase, UINT8* pManufacturerID, UINT8* pDeviceID)
return false; /* fail */ return false; /* fail */
} }
/* eraze the sector which contains the given address */ /* erase the sector which contains the given address */
bool ErazeSector(volatile UINT8* pAddr) bool EraseSector(volatile UINT8* pAddr)
{ {
volatile UINT8* pBase = volatile UINT8* pBase =
(UINT8*)((UINT32)pAddr & 0xFFF80000); /* round down to 512k align */ (UINT8*)((UINT32)pAddr & 0xFFF80000); /* round down to 512k align */
@ -130,19 +130,19 @@ bool ErazeSector(volatile UINT8* pAddr)
pBase[0x5555] = 0xAA; /* enter command mode */ pBase[0x5555] = 0xAA; /* enter command mode */
pBase[0x2AAA] = 0x55; pBase[0x2AAA] = 0x55;
pBase[0x5555] = 0x80; /* eraze command */ pBase[0x5555] = 0x80; /* erase command */
pBase[0x5555] = 0xAA; /* enter command mode */ pBase[0x5555] = 0xAA; /* enter command mode */
pBase[0x2AAA] = 0x55; pBase[0x2AAA] = 0x55;
*pAddr = 0x30; /* eraze the sector */ *pAddr = 0x30; /* erase the sector */
/* I counted 7 instructions for this loop -> min. 0.58 us per round /* I counted 7 instructions for this loop -> min. 0.58 us per round
Plus memory waitstates it will be much more, gives margin */ Plus memory waitstates it will be much more, gives margin */
while (*pAddr != 0xFF && --timeout); /* poll for erazed */ while (*pAddr != 0xFF && --timeout); /* poll for erased */
return (timeout != 0); return (timeout != 0);
} }
/* address must be in an erazed location */ /* address must be in an erased location */
inline bool ProgramByte(volatile UINT8* pAddr, UINT8 data) inline bool ProgramByte(volatile UINT8* pAddr, UINT8 data)
{ {
unsigned timeout = 35; /* the timeout loop should be no less than 20us */ unsigned timeout = 35; /* the timeout loop should be no less than 20us */
@ -333,9 +333,9 @@ tCheckResult CheckImageFile(char* filename, int space, tImageHeader* pHeader)
/* check if we can read the whole file */ /* check if we can read the whole file */
do do
{ {
read = rb->read(fd, sector, SEC_SIZE); read = rb->read(fd, sector, SECTORSIZE);
fileread += read; fileread += read;
} while (read == SEC_SIZE); } while (read == SECTORSIZE);
rb->close(fd); rb->close(fd);
@ -370,13 +370,13 @@ unsigned ProgramImageFile(char* filename, UINT8* pos,
*(tImageHeader*)sector = *pImageHeader; /* copy header into sector *(tImageHeader*)sector = *pImageHeader; /* copy header into sector
buffer */ buffer */
read = rb->read(fd, sector + sizeof(tImageHeader), read = rb->read(fd, sector + sizeof(tImageHeader),
SEC_SIZE - sizeof(tImageHeader)); /* payload behind */ SECTORSIZE - sizeof(tImageHeader)); /* payload behind */
size -= read; size -= read;
read += sizeof(tImageHeader); /* to be programmed, but not part of the read += sizeof(tImageHeader); /* to be programmed, but not part of the
file */ file */
do { do {
if (!ErazeSector(pos)) if (!EraseSector(pos))
{ {
/* nothing we can do, let the programming count the errors */ /* nothing we can do, let the programming count the errors */
} }
@ -389,8 +389,8 @@ unsigned ProgramImageFile(char* filename, UINT8* pos,
} }
} }
pos += SEC_SIZE; pos += SECTORSIZE;
read = rb->read(fd, sector, (size > SEC_SIZE) ? SEC_SIZE : size); read = rb->read(fd, sector, (size > SECTORSIZE) ? SECTORSIZE : size);
/* payload for next sector */ /* payload for next sector */
size -= read; size -= read;
} while (read > 0); } while (read > 0);
@ -420,7 +420,7 @@ unsigned VerifyImageFile(char* filename, UINT8* pos,
*(tImageHeader*)sector = *pImageHeader; /* copy header into sector *(tImageHeader*)sector = *pImageHeader; /* copy header into sector
buffer */ buffer */
read = rb->read(fd, sector + sizeof(tImageHeader), read = rb->read(fd, sector + sizeof(tImageHeader),
SEC_SIZE - sizeof(tImageHeader)); /* payload behind */ SECTORSIZE - sizeof(tImageHeader)); /* payload behind */
size -= read; size -= read;
read += sizeof(tImageHeader); /* to be programmed, but not part of the read += sizeof(tImageHeader); /* to be programmed, but not part of the
@ -436,8 +436,8 @@ unsigned VerifyImageFile(char* filename, UINT8* pos,
} }
} }
pos += SEC_SIZE; pos += SECTORSIZE;
read = rb->read(fd, sector, (size > SEC_SIZE) ? SEC_SIZE : size); read = rb->read(fd, sector, (size > SECTORSIZE) ? SECTORSIZE : size);
/* payload for next sector */ /* payload for next sector */
size -= read; size -= read;
} while (read); } while (read);
@ -500,9 +500,18 @@ void DoUserDialog(char* filename)
int rc; /* generic return code */ int rc; /* generic return code */
UINT32 space, aligned_size, true_size; UINT32 space, aligned_size, true_size;
UINT8* pos; UINT8* pos;
int memleft;
rb->lcd_setfont(FONT_SYSFIXED); rb->lcd_setfont(FONT_SYSFIXED);
/* "allocate" memory */
sector = rb->plugin_get_buffer(&memleft);
if (memleft < SECTORSIZE) /* need buffer for a flash sector */
{
rb->splash(HZ*3, 0, true, "Out of memory");
return; /* exit */
}
pos = (void*)GetSecondImage(); pos = (void*)GetSecondImage();
rc = GetFlashInfo(&FlashInfo); rc = GetFlashInfo(&FlashInfo);
@ -679,6 +688,6 @@ enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
return PLUGIN_OK; return PLUGIN_OK;
} }
#endif #endif // #ifdef HAVE_LCD_BITMAP
#endif #endif // #ifndef SIMULATOR