p54usb: support LM87 firmwares
This patch adds the necessary changes to support LM87 firmwares.
Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/p54/p54.h b/drivers/net/wireless/p54/p54.h
index 3d44ab3..cd2a39f 100644
--- a/drivers/net/wireless/p54/p54.h
+++ b/drivers/net/wireless/p54/p54.h
@@ -42,6 +42,11 @@
#define ISL38XX_DEV_FIRMWARE_ADDR 0x20000
+#define FW_FMAC 0x464d4143
+#define FW_LM86 0x4c4d3836
+#define FW_LM87 0x4c4d3837
+#define FW_LM20 0x4c4d3230
+
struct p54_common {
u32 rx_start;
u32 rx_end;
@@ -68,6 +73,7 @@
unsigned int tx_hdr_len;
void *cached_vdcf;
unsigned int fw_var;
+ unsigned int fw_interface;
struct ieee80211_tx_queue_stats tx_stats[8];
void *eeprom;
struct completion eeprom_comp;
diff --git a/drivers/net/wireless/p54/p54common.c b/drivers/net/wireless/p54/p54common.c
index 6d8248ea..e96bf1a 100644
--- a/drivers/net/wireless/p54/p54common.c
+++ b/drivers/net/wireless/p54/p54common.c
@@ -93,7 +93,8 @@
u32 code = le32_to_cpu(bootrec->code);
switch (code) {
case BR_CODE_COMPONENT_ID:
- switch (be32_to_cpu(*(__be32 *)bootrec->data)) {
+ priv->fw_interface = be32_to_cpup(bootrec->data);
+ switch (priv->fw_interface) {
case FW_FMAC:
printk(KERN_INFO "p54: FreeMAC firmware\n");
break;
@@ -104,7 +105,7 @@
printk(KERN_INFO "p54: LM86 firmware\n");
break;
case FW_LM87:
- printk(KERN_INFO "p54: LM87 firmware - not supported yet!\n");
+ printk(KERN_INFO "p54: LM87 firmware\n");
break;
default:
printk(KERN_INFO "p54: unknown firmware\n");
diff --git a/drivers/net/wireless/p54/p54common.h b/drivers/net/wireless/p54/p54common.h
index 5f2af51..c24b5cd 100644
--- a/drivers/net/wireless/p54/p54common.h
+++ b/drivers/net/wireless/p54/p54common.h
@@ -50,11 +50,6 @@
#define BR_CODE_END_OF_BRA 0xFF0000FF
#define LEGACY_BR_CODE_END_OF_BRA 0xFFFFFFFF
-#define FW_FMAC 0x464d4143
-#define FW_LM86 0x4c4d3836
-#define FW_LM87 0x4c4d3837
-#define FW_LM20 0x4c4d3230
-
/* PDA defines are Copyright (C) 2005 Nokia Corporation (taken from islsm_pda.h) */
struct pda_entry {
diff --git a/drivers/net/wireless/p54/p54usb.c b/drivers/net/wireless/p54/p54usb.c
index eca858c..7444f37 100644
--- a/drivers/net/wireless/p54/p54usb.c
+++ b/drivers/net/wireless/p54/p54usb.c
@@ -91,8 +91,13 @@
skb_unlink(skb, &priv->rx_queue);
skb_put(skb, urb->actual_length);
- if (!priv->hw_type)
- skb_pull(skb, sizeof(struct net2280_tx_hdr));
+
+ if (priv->hw_type == P54U_NET2280)
+ skb_pull(skb, priv->common.tx_hdr_len);
+ if (priv->common.fw_interface == FW_LM87) {
+ skb_pull(skb, 4);
+ skb_put(skb, 4);
+ }
if (p54_rx(dev, skb)) {
skb = dev_alloc_skb(priv->common.rx_mtu + 32);
@@ -109,9 +114,12 @@
urb->context = skb;
skb_queue_tail(&priv->rx_queue, skb);
} else {
- if (!priv->hw_type)
- skb_push(skb, sizeof(struct net2280_tx_hdr));
-
+ if (priv->hw_type == P54U_NET2280)
+ skb_push(skb, priv->common.tx_hdr_len);
+ if (priv->common.fw_interface == FW_LM87) {
+ skb_push(skb, 4);
+ skb_put(skb, 4);
+ }
skb_reset_tail_pointer(skb);
skb_trim(skb, 0);
if (urb->transfer_buffer != skb_tail_pointer(skb)) {
@@ -210,6 +218,42 @@
usb_submit_urb(data_urb, GFP_ATOMIC);
}
+__le32 p54u_lm87_chksum(const u32 *data, size_t length)
+{
+ __le32 chk = 0;
+
+ length >>= 2;
+ while (length--) {
+ chk ^= cpu_to_le32(*data++);
+ chk = (chk >> 5) ^ (chk << 3);
+ }
+
+ return chk;
+}
+
+static void p54u_tx_lm87(struct ieee80211_hw *dev,
+ struct p54_control_hdr *data,
+ size_t len, int free_on_tx)
+{
+ struct p54u_priv *priv = dev->priv;
+ struct urb *data_urb;
+ struct lm87_tx_hdr *hdr = (void *)data - sizeof(*hdr);
+
+ data_urb = usb_alloc_urb(0, GFP_ATOMIC);
+ if (!data_urb)
+ return;
+
+ hdr->chksum = p54u_lm87_chksum((u32 *)data, len);
+ hdr->device_addr = data->req_id;
+
+ usb_fill_bulk_urb(data_urb, priv->udev,
+ usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA), hdr,
+ len + sizeof(*hdr), free_on_tx ? p54u_tx_free_cb : p54u_tx_cb,
+ dev);
+
+ usb_submit_urb(data_urb, GFP_ATOMIC);
+}
+
static void p54u_tx_net2280(struct ieee80211_hw *dev, struct p54_control_hdr *data,
size_t len, int free_on_tx)
{
@@ -776,21 +820,23 @@
}
}
priv->common.open = p54u_open;
-
+ priv->common.stop = p54u_stop;
if (recognized_pipes < P54U_PIPE_NUMBER) {
priv->hw_type = P54U_3887;
- priv->common.tx = p54u_tx_3887;
+ err = p54u_upload_firmware_3887(dev);
+ if (priv->common.fw_interface == FW_LM87) {
+ dev->extra_tx_headroom += sizeof(struct lm87_tx_hdr);
+ priv->common.tx_hdr_len = sizeof(struct lm87_tx_hdr);
+ priv->common.tx = p54u_tx_lm87;
+ } else
+ priv->common.tx = p54u_tx_3887;
} else {
+ priv->hw_type = P54U_NET2280;
dev->extra_tx_headroom += sizeof(struct net2280_tx_hdr);
priv->common.tx_hdr_len = sizeof(struct net2280_tx_hdr);
priv->common.tx = p54u_tx_net2280;
- }
- priv->common.stop = p54u_stop;
-
- if (priv->hw_type)
- err = p54u_upload_firmware_3887(dev);
- else
err = p54u_upload_firmware_net2280(dev);
+ }
if (err)
goto err_free_dev;
diff --git a/drivers/net/wireless/p54/p54usb.h b/drivers/net/wireless/p54/p54usb.h
index 1baaff0..5b8fe91 100644
--- a/drivers/net/wireless/p54/p54usb.h
+++ b/drivers/net/wireless/p54/p54usb.h
@@ -72,6 +72,11 @@
u8 padding[8];
} __attribute__((packed));
+struct lm87_tx_hdr {
+ __le32 device_addr;
+ __le32 chksum;
+} __attribute__((packed));
+
/* Some flags for the isl hardware registers controlling DMA inside the
* chip */
#define ISL38XX_DMA_STATUS_DONE 0x00000001