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works pretty reliable now under MiNT

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This commit is contained in:
Markus Fröschle
2013-05-11 18:27:00 +00:00
parent 62f5eae5dd
commit 4b7dc9c5a0
5 changed files with 76 additions and 34 deletions
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7
sources/bas_string.c
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@@ -28,6 +28,13 @@ char *strcpy(char *dst, const char *src)
return ptr;
}
char *strncpy(char *dst, const char *src, int max)
{
char *ptr = dst;
while ((*dst++ = *src++) != '\0' && max-- >= 0);
return ptr;
}
int atoi(const char *c)
{
int value = 0;

8
sources/mmc.c
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@@ -26,9 +26,9 @@
#define CS_LOW() { dspi_fifo_val |= MCF_DSPI_DTFR_CS5; }
#define SPICLK_FAST() { MCF_DSPI_DCTAR0 = MCF_DSPI_DCTAR_TRSZ(0b111) | /* transfer size = 8 bit */ \
MCF_DSPI_DCTAR_PCSSCK(0b01) | /* 1 clock DSPICS to DSPISCK delay prescaler */ \
MCF_DSPI_DCTAR_PASC_1CLK | /* 1 clock DSPISCK to DSPICS negation prescaler */ \
MCF_DSPI_DCTAR_PDT_1CLK | /* 1 clock delay between DSPICS assertions prescaler */ \
MCF_DSPI_DCTAR_PCSSCK(0b11) | /* 1 clock DSPICS to DSPISCK delay prescaler */ \
MCF_DSPI_DCTAR_PASC_3CLK | /* 1 clock DSPISCK to DSPICS negation prescaler */ \
MCF_DSPI_DCTAR_PDT_3CLK | /* 1 clock delay between DSPICS assertions prescaler */ \
MCF_DSPI_DCTAR_PBR_3CLK | /* 3 clock Baudrate prescaler */ \
MCF_DSPI_DCTAR_ASC(0b0000) | /* 2 */ \
MCF_DSPI_DCTAR_DT(0b0000) | /* 2 */ \
@@ -249,7 +249,7 @@ int rcvr_datablock ( /* 1:OK, 0:Error */
)
{
uint8_t token;
uint32_t target = MCF_SLT_SCNT(0) - (200 * 1000L * 132);
uint32_t target = MCF_SLT_SCNT(0) - (400 * 1000L * 132);
do { /* Wait for DataStart token in timeout of 200ms */
token = xchg_spi(0xFF);

90
sources/xhdi_sd.c
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@@ -30,6 +30,9 @@
#define DRIVER_VERSION 0x130
#define MY_MAJOR 65
#define MY_MINOR 0
static BPB sd_bpb[4]; /* space for four partitions on SD card */
uint16_t xhdi_version(void)
@@ -41,14 +44,7 @@ uint16_t xhdi_version(void)
uint32_t xhdi_inquire_target(uint16_t major, uint16_t minor, uint32_t *block_size, uint32_t *flags,
char *product_name)
{
xprintf("xhdi_inquire_target() called\r\n");
if (block_size != NULL)
{
*block_size = 512;
}
*flags = XH_TARGET_REMOVABLE; /* indicate that SD card can be removed */
return E_OK;
return xhdi_inquire_target2(major, minor, block_size, flags, product_name, 33);
}
uint32_t xhdi_reserve(uint16_t major, uint16_t minor, uint16_t do_reserve, uint16_t key)
@@ -83,7 +79,7 @@ uint32_t xhdi_drivemap(void)
return map;
}
#define MY_MAJOR 255
#define MY_MAJOR 65
#define MY_MINOR 0
uint32_t xhdi_inquire_device(uint16_t bios_device, uint16_t *major, uint16_t *minor,
@@ -100,7 +96,7 @@ uint32_t xhdi_inquire_device(uint16_t bios_device, uint16_t *major, uint16_t *mi
uint32_t xhdi_inquire_driver(uint16_t bios_device, char *name, char *version,
char *company, uint16_t *ahdi_version, uint16_t *maxIPL)
{
xprintf("xhdi_inquire_driver() called. bios_device = %x, name = %p, version = %p,\r\n"
xprintf("xhdi_inquire_driver() called. bios_device = %d, name = %p, version = %p,\r\n"
"company = %p, ahdi_version = %p, max_IPL = %p\r\n",
bios_device, name, version, company, ahdi_version, maxIPL);
if (bios_device == 'S' - 'A')
@@ -125,28 +121,60 @@ uint32_t xhdi_new_cookie(uint32_t newcookie)
uint32_t xhdi_read_write(uint16_t major, uint16_t minor, uint16_t rwflag,
uint32_t recno, uint16_t count, void *buf)
{
xprintf("xhdi_read_write() called: major = %x, minor = %x, rwflag = %x, \r\nrecno = %lx, count = %lx, buf = %p\r\n",
int ret;
uint16_t num_sectors;
int16_t s_count = count;
uint16_t retries;
const uint16_t max_retries = 5;
xprintf("xhdi_read_write() called: major = %d, minor = %d, rwflag = %d, \r\nrecno = %lx, count = %lx, buf = %p\r\n",
major, minor, rwflag, recno, count, buf);
if (major == MY_MAJOR && minor == MY_MINOR)
if (major == MY_MAJOR)
{
if (rwflag & 1) /* write */
{
disk_write(0, buf, recno, count);
}
else if (rwflag & 1 == 0) /* read */
{
disk_read(0, buf, recno, count);
}
do {
num_sectors = ((s_count > 1) ? 1 : s_count);
retries = 0;
do {
ret = ((rwflag & 1) ? disk_write(0, buf, recno, num_sectors) : disk_read(0, buf, recno, num_sectors));
if (ret != RES_OK && retries > max_retries)
{
xprintf("error: %d\r\n", ret);
return ERROR;
}
else if (ret != RES_OK)
{
retries++;
continue;
}
} while (retries < max_retries && ret != RES_OK);
buf += num_sectors * 512;
recno += num_sectors;
s_count -= num_sectors;
} while (s_count > 0);
xprintf("call ok. %d sector(s) %s\r\n", count, ((rwflag & 1) ? "written" : "read"));
return E_OK;
}
return E_OK;
return EUNDEV;
}
uint32_t xhdi_inquire_target2(uint16_t major, uint16_t minor, uint32_t *block_size,
uint32_t *device_flags, char *product_name, uint16_t stringlen)
{
xprintf("xhdi_inquire_target2() called\r\n");
return ERROR;
xprintf("xhdi_inquire_target2(major=%d, minor=%d) called\r\n", major, minor);
if (major == MY_MAJOR)
{
if (block_size != NULL) *block_size = 512;
if (device_flags != NULL) *device_flags = XH_TARGET_REMOVABLE;
if (product_name != NULL) strncpy(product_name, "BaS SD driver", stringlen);
xprintf("returning block_size %d, device_flags %d, product_name %s \r\n", *block_size, *device_flags, *product_name);
return E_OK;
}
return EUNDEV;
}
uint32_t xhdi_inquire_device2(uint16_t bios_device, uint16_t *major, uint16_t *minor,
@@ -156,7 +184,6 @@ uint32_t xhdi_inquire_device2(uint16_t bios_device, uint16_t *major, uint16_t *m
if (bios_device == 'S' - 'A')
{
return E_OK;
}
return EUNDEV;
@@ -170,8 +197,19 @@ uint32_t xhdi_driver_special(uint32_t key1, uint32_t key2, uint16_t subopcode, v
uint32_t xhdi_get_capacity(uint16_t major, uint16_t minor, uint32_t *blocks, uint32_t *bs)
{
xprintf("xhdi_get_capacity() called\r\n");
return ERROR;
xprintf("xhdi_get_capacity(major=%d, minor=%d) called\r\n", major, minor);
if (major == MY_MAJOR)
{
if (disk_ioctl(0, GET_SECTOR_COUNT, blocks) != RES_OK)
return ERROR;
if (disk_ioctl(0, GET_SECTOR_SIZE, bs) != RES_OK)
return ERROR;
*bs = 512;
xprintf("returning %d blocks with %d blocksize (%d GB)\r\n", *blocks, *bs, *blocks / 2 / 1000 / 1000);
return E_OK;
}
return EUNDEV;
}
uint32_t xhdi_medium_changed(uint16_t major, uint16_t minor)

4
sources/xhdi_vec.S
View File

@@ -16,10 +16,6 @@ _xhdi_vec:
lea -12(sp),sp // save all used registers according to XHDI spec
movem.l d1/a0-a1,(sp)
move.l _drvbits,d0
bset.l #('S'-'A'),d0 // add drive S
move.l d0,_drvbits
pea 16(sp) // forward address of parameters on stack
jsr _xhdi_call // to internal routine
addq.l #4,sp // correct stack