brcm80211: fmac: add USB support for bcm43235/6/8 chipsets

This patch extends the use of the brcmfmac driver with support for
chipsets with a USB host interface. The first chipsets supported are
the bcm43235, bcm43236, and bcm43238 for which firmware has been
submitted.

This driver change has been successfully built for x86, x86_64,
ppc64, arm_le, and mips_be.

It has been tested successfully on x86 and x86_64.

Cc: M. Lambert <lambertm@westman.wave.ca>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Kan Yan <kanyan@broadcom.com>
Reviewed-by: Alwin Beukers <alwin@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 75 insertions, 0 deletions

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/usb_rdl.h b/drivers/net/wireless/brcm80211/brcmfmac/usb_rdl.h
new file mode 100644
index 000000000000..0a35c51c3da2
--- /dev/null
+++ b/drivers/net/wireless/brcm80211/brcmfmac/usb_rdl.h
@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2011 Broadcom Corporation
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _USB_RDL_H
+#define _USB_RDL_H
+
+/* Control messages: bRequest values */
+#define DL_GETSTATE	0	/* returns the rdl_state_t struct */
+#define DL_CHECK_CRC	1	/* currently unused */
+#define DL_GO		2	/* execute downloaded image */
+#define DL_START	3	/* initialize dl state */
+#define DL_REBOOT	4	/* reboot the device in 2 seconds */
+#define DL_GETVER	5	/* returns the bootrom_id_t struct */
+#define DL_GO_PROTECTED	6	/* execute the downloaded code and set reset
+				 * event to occur in 2 seconds.  It is the
+				 * responsibility of the downloaded code to
+				 * clear this event
+				 */
+#define DL_EXEC		7	/* jump to a supplied address */
+#define DL_RESETCFG	8	/* To support single enum on dongle
+				 * - Not used by bootloader
+				 */
+#define DL_DEFER_RESP_OK 9	/* Potentially defer the response to setup
+				 * if resp unavailable
+				 */
+
+/* states */
+#define DL_WAITING	0	/* waiting to rx first pkt */
+#define DL_READY	1	/* hdr was good, waiting for more of the
+				 * compressed image */
+#define DL_BAD_HDR	2	/* hdr was corrupted */
+#define DL_BAD_CRC	3	/* compressed image was corrupted */
+#define DL_RUNNABLE	4	/* download was successful,waiting for go cmd */
+#define DL_START_FAIL	5	/* failed to initialize correctly */
+#define DL_NVRAM_TOOBIG	6	/* host specified nvram data exceeds DL_NVRAM
+				 * value */
+#define DL_IMAGE_TOOBIG	7	/* download image too big (exceeds DATA_START
+				 *  for rdl) */
+
+struct rdl_state_le {
+	__le32 state;
+	__le32 bytes;
+};
+
+struct bootrom_id_le {
+	__le32 chip;	/* Chip id */
+	__le32 chiprev;	/* Chip rev */
+	__le32 ramsize;	/* Size of  RAM */
+	__le32 remapbase;	/* Current remap base address */
+	__le32 boardtype;	/* Type of board */
+	__le32 boardrev;	/* Board revision */
+};
+
+#define RDL_CHUNK	1500  /* size of each dl transfer */
+
+#define TRX_OFFSETS_DLFWLEN_IDX	0
+#define TRX_OFFSETS_JUMPTO_IDX	1
+#define TRX_OFFSETS_NVM_LEN_IDX	2
+
+#define TRX_OFFSETS_DLBASE_IDX  0
+
+#endif  /* _USB_RDL_H */