[P54]: add mac80211-based driver for prism54 softmac hardware

Signed-off-by: Michael Wu <flamingice@sourmilk.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 106 insertions, 0 deletions

diff --git a/drivers/net/wireless/p54pci.h b/drivers/net/wireless/p54pci.h
new file mode 100644
index 000000000000..52feb597dc4a
--- /dev/null
+++ b/drivers/net/wireless/p54pci.h
@@ -0,0 +1,106 @@
+#ifndef PRISM54PCI_H
+#define PRISM54PCI_H
+
+/*
+ * Defines for PCI based mac80211 Prism54 driver
+ *
+ * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
+ *
+ * Based on the islsm (softmac prism54) driver, which is:
+ * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/* Device Interrupt register bits */
+#define ISL38XX_DEV_INT_RESET                   0x0001
+#define ISL38XX_DEV_INT_UPDATE                  0x0002
+#define ISL38XX_DEV_INT_WAKEUP                  0x0008
+#define ISL38XX_DEV_INT_SLEEP                   0x0010
+#define ISL38XX_DEV_INT_ABORT                   0x0020
+/* these two only used in USB */
+#define ISL38XX_DEV_INT_DATA                    0x0040
+#define ISL38XX_DEV_INT_MGMT                    0x0080
+
+#define ISL38XX_DEV_INT_PCIUART_CTS             0x4000
+#define ISL38XX_DEV_INT_PCIUART_DR              0x8000
+
+/* Interrupt Identification/Acknowledge/Enable register bits */
+#define ISL38XX_INT_IDENT_UPDATE		0x0002
+#define ISL38XX_INT_IDENT_INIT			0x0004
+#define ISL38XX_INT_IDENT_WAKEUP		0x0008
+#define ISL38XX_INT_IDENT_SLEEP			0x0010
+#define ISL38XX_INT_IDENT_PCIUART_CTS		0x4000
+#define ISL38XX_INT_IDENT_PCIUART_DR		0x8000
+
+/* Control/Status register bits */
+#define ISL38XX_CTRL_STAT_SLEEPMODE		0x00000200
+#define ISL38XX_CTRL_STAT_CLKRUN		0x00800000
+#define ISL38XX_CTRL_STAT_RESET			0x10000000
+#define ISL38XX_CTRL_STAT_RAMBOOT		0x20000000
+#define ISL38XX_CTRL_STAT_STARTHALTED		0x40000000
+#define ISL38XX_CTRL_STAT_HOST_OVERRIDE		0x80000000
+
+struct p54p_csr {
+	__le32 dev_int;
+	u8 unused_1[12];
+	__le32 int_ident;
+	__le32 int_ack;
+	__le32 int_enable;
+	u8 unused_2[4];
+	union {
+		__le32 ring_control_base;
+		__le32 gen_purp_com[2];
+	};
+	u8 unused_3[8];
+	__le32 direct_mem_base;
+	u8 unused_4[44];
+	__le32 dma_addr;
+	__le32 dma_len;
+	__le32 dma_ctrl;
+	u8 unused_5[12];
+	__le32 ctrl_stat;
+	u8 unused_6[1924];
+	u8 cardbus_cis[0x800];
+	u8 direct_mem_win[0x1000];
+} __attribute__ ((packed));
+
+/* usb backend only needs the register defines above */
+#ifndef PRISM54USB_H
+struct p54p_desc {
+	__le32 host_addr;
+	__le32 device_addr;
+	__le16 len;
+	__le16 flags;
+} __attribute__ ((packed));
+
+struct p54p_ring_control {
+	__le32 host_idx[4];
+	__le32 device_idx[4];
+	struct p54p_desc rx_data[8];
+	struct p54p_desc tx_data[32];
+	struct p54p_desc rx_mgmt[4];
+	struct p54p_desc tx_mgmt[4];
+} __attribute__ ((packed));
+
+#define P54P_READ(r) __raw_readl(&priv->map->r)
+#define P54P_WRITE(r, val) __raw_writel((__force u32)(val), &priv->map->r)
+
+struct p54p_priv {
+	struct p54_common common;
+	struct pci_dev *pdev;
+	struct p54p_csr __iomem *map;
+
+	spinlock_t lock;
+	struct p54p_ring_control *ring_control;
+	dma_addr_t ring_control_dma;
+	u32 rx_idx, tx_idx;
+	struct sk_buff *rx_buf[8];
+	void *tx_buf[32];
+	struct completion boot_comp;
+};
+
+#endif /* PRISM54USB_H */
+#endif /* PRISM54PCI_H */