[PATCH 02/24] ath6kl: add bmi.h
Kalle Valo
kvalo at qca.qualcomm.com
Wed Jul 13 01:33:12 UTC 2011
Signed-off-by: Kalle Valo <kvalo at qca.qualcomm.com>
---
drivers/net/wireless/ath/ath6kl/bmi.h | 250 +++++++++++++++++++++++++++++++++
1 files changed, 250 insertions(+), 0 deletions(-)
create mode 100644 drivers/net/wireless/ath/ath6kl/bmi.h
diff --git a/drivers/net/wireless/ath/ath6kl/bmi.h b/drivers/net/wireless/ath/ath6kl/bmi.h
new file mode 100644
index 0000000..83546d7
--- /dev/null
+++ b/drivers/net/wireless/ath/ath6kl/bmi.h
@@ -0,0 +1,250 @@
+/*
+ * Copyright (c) 2004-2011 Atheros Communications Inc.
+ *
+ * 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 BMI_H
+#define BMI_H
+
+/*
+ * Bootloader Messaging Interface (BMI)
+ *
+ * BMI is a very simple messaging interface used during initialization
+ * to read memory, write memory, execute code, and to define an
+ * application entry PC.
+ *
+ * It is used to download an application to ATH6KL, to provide
+ * patches to code that is already resident on ATH6KL, and generally
+ * to examine and modify state. The Host has an opportunity to use
+ * BMI only once during bootup. Once the Host issues a BMI_DONE
+ * command, this opportunity ends.
+ *
+ * The Host writes BMI requests to mailbox0, and reads BMI responses
+ * from mailbox0. BMI requests all begin with a command
+ * (see below for specific commands), and are followed by
+ * command-specific data.
+ *
+ * Flow control:
+ * The Host can only issue a command once the Target gives it a
+ * "BMI Command Credit", using ATH6KL Counter #4. As soon as the
+ * Target has completed a command, it issues another BMI Command
+ * Credit (so the Host can issue the next command).
+ *
+ * BMI handles all required Target-side cache flushing.
+ */
+
+#define MAX_BMI_CMDBUF_SZ (BMI_DATASZ_MAX + \
+ (sizeof(u32) * 3 /* cmd + addr + len */))
+
+/* Maximum data size used for BMI transfers */
+#define BMI_DATASZ_MAX 256
+
+/* BMI Commands */
+
+#define BMI_NO_COMMAND 0
+
+#define BMI_DONE 1
+/*
+ * Semantics: Host is done using BMI
+ * Request format:
+ * u32 command (BMI_DONE)
+ * Response format: none
+ */
+
+#define BMI_READ_MEMORY 2
+/*
+ * Semantics: Host reads ATH6KL memory
+ * Request format:
+ * u32 command (BMI_READ_MEMORY)
+ * u32 address
+ * u32 length, at most BMI_DATASZ_MAX
+ * Response format:
+ * u8 data[length]
+ */
+
+#define BMI_WRITE_MEMORY 3
+/*
+ * Semantics: Host writes ATH6KL memory
+ * Request format:
+ * u32 command (BMI_WRITE_MEMORY)
+ * u32 address
+ * u32 length, at most BMI_DATASZ_MAX
+ * u8 data[length]
+ * Response format: none
+ */
+
+#define BMI_EXECUTE 4
+/*
+ * Semantics: Causes ATH6KL to execute code
+ * Request format:
+ * u32 command (BMI_EXECUTE)
+ * u32 address
+ * u32 parameter
+ * Response format:
+ * u32 return value
+ */
+
+#define BMI_SET_APP_START 5
+/*
+ * Semantics: Set Target application starting address
+ * Request format:
+ * u32 command (BMI_SET_APP_START)
+ * u32 address
+ * Response format: none
+ */
+
+#define BMI_READ_SOC_REGISTER 6
+/*
+ * Semantics: Read a 32-bit Target SOC register.
+ * Request format:
+ * u32 command (BMI_READ_REGISTER)
+ * u32 address
+ * Response format:
+ * u32 value
+ */
+
+#define BMI_WRITE_SOC_REGISTER 7
+/*
+ * Semantics: Write a 32-bit Target SOC register.
+ * Request format:
+ * u32 command (BMI_WRITE_REGISTER)
+ * u32 address
+ * u32 value
+ *
+ * Response format: none
+ */
+
+#define BMI_GET_TARGET_ID 8
+#define BMI_GET_TARGET_INFO 8
+/*
+ * Semantics: Fetch the 4-byte Target information
+ * Request format:
+ * u32 command (BMI_GET_TARGET_ID/INFO)
+ * Response format1 (old firmware):
+ * u32 TargetVersionID
+ * Response format2 (newer firmware):
+ * u32 TARGET_VERSION_SENTINAL
+ * struct bmi_target_info;
+ */
+
+#define TARGET_VERSION_SENTINAL 0xffffffff
+#define TARGET_TYPE_AR6003 3
+
+#define BMI_ROMPATCH_INSTALL 9
+/*
+ * Semantics: Install a ROM Patch.
+ * Request format:
+ * u32 command (BMI_ROMPATCH_INSTALL)
+ * u32 Target ROM Address
+ * u32 Target RAM Address or Value (depending on Target Type)
+ * u32 Size, in bytes
+ * u32 Activate? 1-->activate;
+ * 0-->install but do not activate
+ * Response format:
+ * u32 PatchID
+ */
+
+#define BMI_ROMPATCH_UNINSTALL 10
+/*
+ * Semantics: Uninstall a previously-installed ROM Patch,
+ * automatically deactivating, if necessary.
+ * Request format:
+ * u32 command (BMI_ROMPATCH_UNINSTALL)
+ * u32 PatchID
+ *
+ * Response format: none
+ */
+
+#define BMI_ROMPATCH_ACTIVATE 11
+/*
+ * Semantics: Activate a list of previously-installed ROM Patches.
+ * Request format:
+ * u32 command (BMI_ROMPATCH_ACTIVATE)
+ * u32 rompatch_count
+ * u32 PatchID[rompatch_count]
+ *
+ * Response format: none
+ */
+
+#define BMI_ROMPATCH_DEACTIVATE 12
+/*
+ * Semantics: Deactivate a list of active ROM Patches.
+ * Request format:
+ * u32 command (BMI_ROMPATCH_DEACTIVATE)
+ * u32 rompatch_count
+ * u32 PatchID[rompatch_count]
+ *
+ * Response format: none
+ */
+
+
+#define BMI_LZ_STREAM_START 13
+/*
+ * Semantics: Begin an LZ-compressed stream of input
+ * which is to be uncompressed by the Target to an
+ * output buffer at address. The output buffer must
+ * be sufficiently large to hold the uncompressed
+ * output from the compressed input stream. This BMI
+ * command should be followed by a series of 1 or more
+ * BMI_LZ_DATA commands.
+ * u32 command (BMI_LZ_STREAM_START)
+ * u32 address
+ * Note: Not supported on all versions of ROM firmware.
+ */
+
+#define BMI_LZ_DATA 14
+/*
+ * Semantics: Host writes ATH6KL memory with LZ-compressed
+ * data which is uncompressed by the Target. This command
+ * must be preceded by a BMI_LZ_STREAM_START command. A series
+ * of BMI_LZ_DATA commands are considered part of a single
+ * input stream until another BMI_LZ_STREAM_START is issued.
+ * Request format:
+ * u32 command (BMI_LZ_DATA)
+ * u32 length (of compressed data),
+ * at most BMI_DATASZ_MAX
+ * u8 CompressedData[length]
+ * Response format: none
+ * Note: Not supported on all versions of ROM firmware.
+ */
+
+#define BMI_COMMUNICATION_TIMEOUT 1000 /* in msec */
+
+struct ath6kl;
+struct ath6kl_bmi_target_info {
+ __le32 byte_count; /* size of this structure */
+ __le32 version; /* target version id */
+ __le32 type; /* target type */
+} __packed;
+
+int ath6kl_bmi_init(struct ath6kl *ar);
+void ath6kl_bmi_cleanup(struct ath6kl *ar);
+int ath6kl_bmi_done(struct ath6kl *ar);
+int ath6kl_bmi_get_target_info(struct ath6kl *ar,
+ struct ath6kl_bmi_target_info *targ_info);
+int ath6kl_bmi_read(struct ath6kl *ar, u32 addr, u8 *buf, u32 len);
+int ath6kl_bmi_write(struct ath6kl *ar, u32 addr, u8 *buf, u32 len);
+int ath6kl_bmi_execute(struct ath6kl *ar,
+ u32 addr, u32 *param);
+int ath6kl_bmi_set_app_start(struct ath6kl *ar,
+ u32 addr);
+int ath6kl_bmi_reg_read(struct ath6kl *ar, u32 addr, u32 *param);
+int ath6kl_bmi_reg_write(struct ath6kl *ar, u32 addr, u32 param);
+int ath6kl_bmi_lz_data(struct ath6kl *ar,
+ u8 *buf, u32 len);
+int ath6kl_bmi_lz_stream_start(struct ath6kl *ar,
+ u32 addr);
+int ath6kl_bmi_fast_download(struct ath6kl *ar,
+ u32 addr, u8 *buf, u32 len);
+#endif
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