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path: root/drivers/char/moxa.c
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Diffstat (limited to 'drivers/char/moxa.c')
-rw-r--r--drivers/char/moxa.c188
1 files changed, 69 insertions, 119 deletions
diff --git a/drivers/char/moxa.c b/drivers/char/moxa.c
index 133819cf2c5c..fa58fa14b4cf 100644
--- a/drivers/char/moxa.c
+++ b/drivers/char/moxa.c
@@ -368,92 +368,40 @@ static int moxa_load_320b(struct moxa_board_conf *brd, const u8 *ptr,
return 0;
}
-static int moxa_load_c218(struct moxa_board_conf *brd, const void *ptr,
+static int moxa_real_load_code(struct moxa_board_conf *brd, const void *ptr,
size_t len)
{
void __iomem *baseAddr = brd->basemem;
const u16 *uptr = ptr;
size_t wlen, len2, j;
- unsigned int i, retry;
+ unsigned long key, loadbuf, loadlen, checksum, checksum_ok;
+ unsigned int i, retry, c320;
u16 usum, keycode;
- if (brd->boardType == MOXA_BOARD_CP204J)
- keycode = CP204J_KeyCode;
- else
- keycode = C218_KeyCode;
- usum = 0;
- wlen = len >> 1;
- for (i = 0; i < wlen; i++)
- usum += le16_to_cpu(uptr[i]);
- retry = 0;
- do {
- wlen = len >> 1;
- j = 0;
- while (wlen) {
- len2 = (wlen > 2048) ? 2048 : wlen;
- wlen -= len2;
- memcpy_toio(baseAddr + C218_LoadBuf, ptr + j,
- len2 << 1);
- j += len2 << 1;
-
- writew(len2, baseAddr + C218DLoad_len);
- writew(0, baseAddr + C218_key);
- for (i = 0; i < 100; i++) {
- if (readw(baseAddr + C218_key) == keycode)
- break;
- msleep(10);
- }
- if (readw(baseAddr + C218_key) != keycode)
- return -EIO;
- }
- writew(0, baseAddr + C218DLoad_len);
- writew(usum, baseAddr + C218check_sum);
- writew(0, baseAddr + C218_key);
- for (i = 0; i < 100; i++) {
- if (readw(baseAddr + C218_key) == keycode)
- break;
- msleep(10);
- }
- retry++;
- } while ((readb(baseAddr + C218chksum_ok) != 1) && (retry < 3));
- if (readb(baseAddr + C218chksum_ok) != 1)
- return -EIO;
+ c320 = brd->boardType == MOXA_BOARD_C320_PCI ||
+ brd->boardType == MOXA_BOARD_C320_ISA;
+ keycode = (brd->boardType == MOXA_BOARD_CP204J) ? CP204J_KeyCode :
+ C218_KeyCode;
- writew(0, baseAddr + C218_key);
- for (i = 0; i < 100; i++) {
- if (readw(baseAddr + Magic_no) == Magic_code)
- break;
- msleep(10);
- }
- if (readw(baseAddr + Magic_no) != Magic_code)
- return -EIO;
-
- writew(1, baseAddr + Disable_IRQ);
- writew(0, baseAddr + Magic_no);
- for (i = 0; i < 100; i++) {
- if (readw(baseAddr + Magic_no) == Magic_code)
- break;
- msleep(10);
+ switch (brd->boardType) {
+ case MOXA_BOARD_CP204J:
+ case MOXA_BOARD_C218_ISA:
+ case MOXA_BOARD_C218_PCI:
+ key = C218_key;
+ loadbuf = C218_LoadBuf;
+ loadlen = C218DLoad_len;
+ checksum = C218check_sum;
+ checksum_ok = C218chksum_ok;
+ break;
+ default:
+ key = C320_key;
+ keycode = C320_KeyCode;
+ loadbuf = C320_LoadBuf;
+ loadlen = C320DLoad_len;
+ checksum = C320check_sum;
+ checksum_ok = C320chksum_ok;
+ break;
}
- if (readw(baseAddr + Magic_no) != Magic_code)
- return -EIO;
-
- moxaCard = 1;
- brd->intNdx = baseAddr + IRQindex;
- brd->intPend = baseAddr + IRQpending;
- brd->intTable = baseAddr + IRQtable;
-
- return 0;
-}
-
-static int moxa_load_c320(struct moxa_board_conf *brd, const void *ptr,
- size_t len)
-{
- void __iomem *baseAddr = brd->basemem;
- const u16 *uptr = ptr;
- size_t wlen, len2, j;
- unsigned int i, retry;
- u16 usum;
usum = 0;
wlen = len >> 1;
@@ -466,33 +414,33 @@ static int moxa_load_c320(struct moxa_board_conf *brd, const void *ptr,
while (wlen) {
len2 = (wlen > 2048) ? 2048 : wlen;
wlen -= len2;
- memcpy_toio(baseAddr + C320_LoadBuf, ptr + j,
- len2 << 1);
+ memcpy_toio(baseAddr + loadbuf, ptr + j, len2 << 1);
j += len2 << 1;
- writew(len2, baseAddr + C320DLoad_len);
- writew(0, baseAddr + C320_key);
- for (i = 0; i < 10; i++) {
- if (readw(baseAddr + C320_key) == C320_KeyCode)
+
+ writew(len2, baseAddr + loadlen);
+ writew(0, baseAddr + key);
+ for (i = 0; i < 100; i++) {
+ if (readw(baseAddr + key) == keycode)
break;
msleep(10);
}
- if (readw(baseAddr + C320_key) != C320_KeyCode)
+ if (readw(baseAddr + key) != keycode)
return -EIO;
}
- writew(0, baseAddr + C320DLoad_len);
- writew(usum, baseAddr + C320check_sum);
- writew(0, baseAddr + C320_key);
- for (i = 0; i < 10; i++) {
- if (readw(baseAddr + C320_key) == C320_KeyCode)
+ writew(0, baseAddr + loadlen);
+ writew(usum, baseAddr + checksum);
+ writew(0, baseAddr + key);
+ for (i = 0; i < 100; i++) {
+ if (readw(baseAddr + key) == keycode)
break;
msleep(10);
}
retry++;
- } while ((readb(baseAddr + C320chksum_ok) != 1) && (retry < 3));
- if (readb(baseAddr + C320chksum_ok) != 1)
+ } while ((readb(baseAddr + checksum_ok) != 1) && (retry < 3));
+ if (readb(baseAddr + checksum_ok) != 1)
return -EIO;
- writew(0, baseAddr + C320_key);
+ writew(0, baseAddr + key);
for (i = 0; i < 600; i++) {
if (readw(baseAddr + Magic_no) == Magic_code)
break;
@@ -501,14 +449,16 @@ static int moxa_load_c320(struct moxa_board_conf *brd, const void *ptr,
if (readw(baseAddr + Magic_no) != Magic_code)
return -EIO;
- if (brd->busType == MOXA_BUS_TYPE_PCI) { /* ASIC board */
- writew(0x3800, baseAddr + TMS320_PORT1);
- writew(0x3900, baseAddr + TMS320_PORT2);
- writew(28499, baseAddr + TMS320_CLOCK);
- } else {
- writew(0x3200, baseAddr + TMS320_PORT1);
- writew(0x3400, baseAddr + TMS320_PORT2);
- writew(19999, baseAddr + TMS320_CLOCK);
+ if (c320) {
+ if (brd->busType == MOXA_BUS_TYPE_PCI) { /* ASIC board */
+ writew(0x3800, baseAddr + TMS320_PORT1);
+ writew(0x3900, baseAddr + TMS320_PORT2);
+ writew(28499, baseAddr + TMS320_CLOCK);
+ } else {
+ writew(0x3200, baseAddr + TMS320_PORT1);
+ writew(0x3400, baseAddr + TMS320_PORT2);
+ writew(19999, baseAddr + TMS320_CLOCK);
+ }
}
writew(1, baseAddr + Disable_IRQ);
writew(0, baseAddr + Magic_no);
@@ -520,19 +470,21 @@ static int moxa_load_c320(struct moxa_board_conf *brd, const void *ptr,
if (readw(baseAddr + Magic_no) != Magic_code)
return -EIO;
- j = readw(baseAddr + Module_cnt);
- if (j <= 0)
- return -EIO;
- brd->numPorts = j * 8;
- writew(j, baseAddr + Module_no);
- writew(0, baseAddr + Magic_no);
- for (i = 0; i < 600; i++) {
- if (readw(baseAddr + Magic_no) == Magic_code)
- break;
- msleep(10);
+ if (c320) {
+ j = readw(baseAddr + Module_cnt);
+ if (j <= 0)
+ return -EIO;
+ brd->numPorts = j * 8;
+ writew(j, baseAddr + Module_no);
+ writew(0, baseAddr + Magic_no);
+ for (i = 0; i < 600; i++) {
+ if (readw(baseAddr + Magic_no) == Magic_code)
+ break;
+ msleep(10);
+ }
+ if (readw(baseAddr + Magic_no) != Magic_code)
+ return -EIO;
}
- if (readw(baseAddr + Magic_no) != Magic_code)
- return -EIO;
moxaCard = 1;
brd->intNdx = baseAddr + IRQindex;
brd->intPend = baseAddr + IRQpending;
@@ -549,17 +501,18 @@ static int moxa_load_code(struct moxa_board_conf *brd, const void *ptr,
int retval, i;
if (len % 2) {
- printk(KERN_ERR "moxa: C2XX bios length is not even\n");
+ printk(KERN_ERR "moxa: bios length is not even\n");
return -EINVAL;
}
+ retval = moxa_real_load_code(brd, ptr, len); /* may change numPorts */
+ if (retval)
+ return retval;
+
switch (brd->boardType) {
case MOXA_BOARD_C218_ISA:
case MOXA_BOARD_C218_PCI:
case MOXA_BOARD_CP204J:
- retval = moxa_load_c218(brd, ptr, len);
- if (retval)
- return retval;
port = brd->ports;
for (i = 0; i < brd->numPorts; i++, port++) {
port->chkPort = 1;
@@ -579,9 +532,6 @@ static int moxa_load_code(struct moxa_board_conf *brd, const void *ptr,
}
break;
default:
- retval = moxa_load_c320(brd, ptr, len); /* fills in numPorts */
- if (retval)
- return retval;
port = brd->ports;
for (i = 0; i < brd->numPorts; i++, port++) {
port->chkPort = 1;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 12:03:32 +0100