Those firmwares are probably capable of reprogramming the device's eeprom.
We better support them officially, before all the accidents happen.
Signed-off-by: Christian Lamparter <chunkeey@xxxxxx>
---
diff -Nurp a/drivers/net/wireless/p54/p54common.c b/drivers/net/wireless/p54/p54common.c
--- a/drivers/net/wireless/p54/p54common.c 2008-11-29 21:34:07.000000000 +0100
+++ b/drivers/net/wireless/p54/p54common.c 2008-11-29 21:34:12.000000000 +0100
@@ -740,7 +740,13 @@ static void p54_rx_eeprom_readback(struc
if (!priv->eeprom)
return ;
- memcpy(priv->eeprom, eeprom->data, le16_to_cpu(eeprom->len));
+ if (priv->fw_var >= 0x509) {
+ memcpy(priv->eeprom, eeprom->v2.data,
+ le16_to_cpu(eeprom->v2.len));
+ } else {
+ memcpy(priv->eeprom, eeprom->v1.data,
+ le16_to_cpu(eeprom->v1.len));
+ }
complete(&priv->eeprom_comp);
}
@@ -941,12 +947,18 @@ int p54_read_eeprom(struct ieee80211_hw
struct p54_hdr *hdr = NULL;
struct p54_eeprom_lm86 *eeprom_hdr;
struct sk_buff *skb;
- size_t eeprom_size = 0x2020, offset = 0, blocksize;
+ size_t eeprom_size = 0x2020, offset = 0, blocksize, maxblocksize;
int ret = -ENOMEM;
void *eeprom = NULL;
- skb = p54_alloc_skb(dev, 0x8000, sizeof(*hdr) + sizeof(*eeprom_hdr) +
- EEPROM_READBACK_LEN,
+ maxblocksize = EEPROM_READBACK_LEN;
+ if (priv->fw_var >= 0x509)
+ maxblocksize -= 0xc;
+ else
+ maxblocksize -= 0x4;
+
+ skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL, sizeof(*hdr) +
+ sizeof(*eeprom_hdr) + maxblocksize,
P54_CONTROL_TYPE_EEPROM_READBACK, GFP_KERNEL);
if (!skb)
goto free;
@@ -958,12 +970,19 @@ int p54_read_eeprom(struct ieee80211_hw
goto free;
eeprom_hdr = (struct p54_eeprom_lm86 *) skb_put(skb,
- sizeof(*eeprom_hdr) + EEPROM_READBACK_LEN);
+ sizeof(*eeprom_hdr) + maxblocksize);
while (eeprom_size) {
- blocksize = min(eeprom_size, (size_t)EEPROM_READBACK_LEN);
- eeprom_hdr->offset = cpu_to_le16(offset);
- eeprom_hdr->len = cpu_to_le16(blocksize);
+ blocksize = min(eeprom_size, maxblocksize);
+ if (priv->fw_var < 0x509) {
+ eeprom_hdr->v1.offset = cpu_to_le16(offset);
+ eeprom_hdr->v1.len = cpu_to_le16(blocksize);
+ } else {
+ eeprom_hdr->v2.offset = cpu_to_le32(offset);
+ eeprom_hdr->v2.len = cpu_to_le16(blocksize);
+ eeprom_hdr->v2.magic2 = 0xf;
+ memcpy(eeprom_hdr->v2.magic, (const char *)"LOCK", 4);
+ }
priv->tx(dev, skb, 0);
if (!wait_for_completion_interruptible_timeout(&priv->eeprom_comp, HZ)) {
diff -Nurp a/drivers/net/wireless/p54/p54common.h b/drivers/net/wireless/p54/p54common.h
--- a/drivers/net/wireless/p54/p54common.h 2008-11-28 21:48:03.000000000 +0100
+++ b/drivers/net/wireless/p54/p54common.h 2008-11-28 21:49:25.000000000 +0100
@@ -246,9 +246,21 @@ struct memrecord {
};
struct p54_eeprom_lm86 {
- __le16 offset;
- __le16 len;
- u8 data[0];
+ union {
+ struct {
+ __le16 offset;
+ __le16 len;
+ u8 data[0];
+ } v1;
+ struct {
+ __le32 offset;
+ __le16 len;
+ u8 magic2;
+ u8 pad;
+ u8 magic[4];
+ u8 data[0];
+ } v2;
+ } __attribute__ ((packed));
} __attribute__ ((packed));
enum p54_rx_decrypt_status {
--
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