From 5292bcd38e4bcd147905941b5e37b5b0da1a5577 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Wed, 30 Apr 2008 00:53:39 -0700 Subject: [PATCH] Char: moxa, merge c2xx and c320 firmware loading Signed-off-by: Jiri Slaby Tested-by: Oyvind Aabling Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/moxa.c | 188 ++++++++++++++++---------------------------- 1 file 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; -- 2.30.2