From: Henry Ptasinski Date: Mon, 15 Aug 2011 13:34:23 +0000 (+0200) Subject: staging: brcm80211: Fix handling of firmware and inits on big-endian platforms X-Git-Tag: firefly_0821_release~3680^2~4313^2^2~864^2~277 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d745a845045f31a8250cd856b79e84c8374a3adb;p=firefly-linux-kernel-4.4.55.git staging: brcm80211: Fix handling of firmware and inits on big-endian platforms The firmware files are encoded as little-endian. Do the appropriate swapping for big-endian platforms. Tested on Mac G5 PPC and BCM63281. Signed-off-by: Henry Ptasinski Reviewed-by: Arend van Spriel Reviewed-by: Roland Vossen Tested-by: Jonas Gorski Signed-off-by: Arend van Spriel Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/brcm80211/brcmsmac/mac80211_if.c b/drivers/staging/brcm80211/brcmsmac/mac80211_if.c index e4657495ebd3..7179edda94af 100644 --- a/drivers/staging/brcm80211/brcmsmac/mac80211_if.c +++ b/drivers/staging/brcm80211/brcmsmac/mac80211_if.c @@ -1722,15 +1722,17 @@ int brcms_ucode_init_buf(struct brcms_info *wl, void **pbuf, u32 idx) hdr = (struct firmware_hdr *)wl->fw.fw_hdr[i]->data; for (entry = 0; entry < wl->fw.hdr_num_entries[i]; entry++, hdr++) { - if (hdr->idx == idx) { - pdata = wl->fw.fw_bin[i]->data + hdr->offset; - *pbuf = kmalloc(hdr->len, GFP_ATOMIC); + u32 len = le32_to_cpu(hdr->len); + if (le32_to_cpu(hdr->idx) == idx) { + pdata = wl->fw.fw_bin[i]->data + + le32_to_cpu(hdr->offset); + *pbuf = kmalloc(len, GFP_ATOMIC); if (*pbuf == NULL) { wiphy_err(wl->wiphy, "fail to alloc %d" - " bytes\n", hdr->len); + " bytes\n", len); goto fail; } - memcpy(*pbuf, pdata, hdr->len); + memcpy(*pbuf, pdata, len); return 0; } } @@ -1755,14 +1757,15 @@ int brcms_ucode_init_uint(struct brcms_info *wl, u32 *data, u32 idx) hdr = (struct firmware_hdr *)wl->fw.fw_hdr[i]->data; for (entry = 0; entry < wl->fw.hdr_num_entries[i]; entry++, hdr++) { - if (hdr->idx == idx) { - pdata = wl->fw.fw_bin[i]->data + hdr->offset; - if (hdr->len != 4) { + if (le32_to_cpu(hdr->idx) == idx) { + pdata = wl->fw.fw_bin[i]->data + + le32_to_cpu(hdr->offset); + if (le32_to_cpu(hdr->len) != 4) { wiphy_err(wl->wiphy, "ERROR: fw hdr len\n"); return -ENOMSG; } - *data = *((u32 *) pdata); + *data = le32_to_cpu(*((u32 *) pdata)); return 0; } } @@ -1868,7 +1871,8 @@ int brcms_check_firmwares(struct brcms_info *wl) ucode_hdr = (struct firmware_hdr *)fw_hdr->data; for (entry = 0; entry < wl->fw.hdr_num_entries[i] && !rc; entry++, ucode_hdr++) { - if (ucode_hdr->offset + ucode_hdr->len > + if (le32_to_cpu(ucode_hdr->offset) + + le32_to_cpu(ucode_hdr->len) > fw->size) { wiphy_err(wl->wiphy, "%s: conflicting bin/hdr\n", diff --git a/drivers/staging/brcm80211/brcmsmac/main.c b/drivers/staging/brcm80211/brcmsmac/main.c index d6837d38cbf4..c625c2556aed 100644 --- a/drivers/staging/brcm80211/brcmsmac/main.c +++ b/drivers/staging/brcm80211/brcmsmac/main.c @@ -2033,7 +2033,8 @@ static void brcms_ucode_write(struct brcms_hardware *wlc_hw, const u32 ucode[], W_REG(®s->objaddr, (OBJADDR_AUTO_INC | OBJADDR_UCM_SEL)); (void)R_REG(®s->objaddr); for (i = 0; i < count; i++) - W_REG(®s->objdata, ucode[i]); + W_REG(®s->objdata, le32_to_cpu(ucode[i])); + } static void brcms_c_write_inits(struct brcms_hardware *wlc_hw, @@ -2041,18 +2042,24 @@ static void brcms_c_write_inits(struct brcms_hardware *wlc_hw, { int i; u8 *base; + u8 *addr; + u16 size; + u32 value; BCMMSG(wlc_hw->wlc->wiphy, "wl%d\n", wlc_hw->unit); base = (u8 *)wlc_hw->regs; for (i = 0; inits[i].addr != 0xffff; i++) { - if (inits[i].size == 2) - W_REG((u16 *)(base + inits[i].addr), - inits[i].value); - else if (inits[i].size == 4) - W_REG((u32 *)(base + inits[i].addr), - inits[i].value); + size = le16_to_cpu(inits[i].size); + addr = base + le16_to_cpu(inits[i].addr); + value = le32_to_cpu(inits[i].value); + if (size == 2) + W_REG((u16 *)addr, value); + else if (size == 4) + W_REG((u32 *)addr, value); + else + break; } }