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Diffstat (limited to 'include/linux/mfd/cros_ec_lpc_mec.h')
-rw-r--r--include/linux/mfd/cros_ec_lpc_mec.h90
1 files changed, 0 insertions, 90 deletions
diff --git a/include/linux/mfd/cros_ec_lpc_mec.h b/include/linux/mfd/cros_ec_lpc_mec.h
deleted file mode 100644
index 176496ddc66c..000000000000
--- a/include/linux/mfd/cros_ec_lpc_mec.h
+++ /dev/null
@@ -1,90 +0,0 @@
-/*
- * cros_ec_lpc_mec - LPC variant I/O for Microchip EC
- *
- * Copyright (C) 2016 Google, Inc
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * This driver uses the Chrome OS EC byte-level message-based protocol for
- * communicating the keyboard state (which keys are pressed) from a keyboard EC
- * to the AP over some bus (such as i2c, lpc, spi). The EC does debouncing,
- * but everything else (including deghosting) is done here. The main
- * motivation for this is to keep the EC firmware as simple as possible, since
- * it cannot be easily upgraded and EC flash/IRAM space is relatively
- * expensive.
- */
-
-#ifndef __LINUX_MFD_CROS_EC_MEC_H
-#define __LINUX_MFD_CROS_EC_MEC_H
-
-#include <linux/mfd/cros_ec_commands.h>
-
-enum cros_ec_lpc_mec_emi_access_mode {
- /* 8-bit access */
- ACCESS_TYPE_BYTE = 0x0,
- /* 16-bit access */
- ACCESS_TYPE_WORD = 0x1,
- /* 32-bit access */
- ACCESS_TYPE_LONG = 0x2,
- /*
- * 32-bit access, read or write of MEC_EMI_EC_DATA_B3 causes the
- * EC data register to be incremented.
- */
- ACCESS_TYPE_LONG_AUTO_INCREMENT = 0x3,
-};
-
-enum cros_ec_lpc_mec_io_type {
- MEC_IO_READ,
- MEC_IO_WRITE,
-};
-
-/* Access IO ranges 0x800 thru 0x9ff using EMI interface instead of LPC */
-#define MEC_EMI_RANGE_START EC_HOST_CMD_REGION0
-#define MEC_EMI_RANGE_END (EC_LPC_ADDR_MEMMAP + EC_MEMMAP_SIZE)
-
-/* EMI registers are relative to base */
-#define MEC_EMI_BASE 0x800
-#define MEC_EMI_HOST_TO_EC (MEC_EMI_BASE + 0)
-#define MEC_EMI_EC_TO_HOST (MEC_EMI_BASE + 1)
-#define MEC_EMI_EC_ADDRESS_B0 (MEC_EMI_BASE + 2)
-#define MEC_EMI_EC_ADDRESS_B1 (MEC_EMI_BASE + 3)
-#define MEC_EMI_EC_DATA_B0 (MEC_EMI_BASE + 4)
-#define MEC_EMI_EC_DATA_B1 (MEC_EMI_BASE + 5)
-#define MEC_EMI_EC_DATA_B2 (MEC_EMI_BASE + 6)
-#define MEC_EMI_EC_DATA_B3 (MEC_EMI_BASE + 7)
-
-/*
- * cros_ec_lpc_mec_init
- *
- * Initialize MEC I/O.
- */
-void cros_ec_lpc_mec_init(void);
-
-/*
- * cros_ec_lpc_mec_destroy
- *
- * Cleanup MEC I/O.
- */
-void cros_ec_lpc_mec_destroy(void);
-
-/**
- * cros_ec_lpc_io_bytes_mec - Read / write bytes to MEC EMI port
- *
- * @io_type: MEC_IO_READ or MEC_IO_WRITE, depending on request
- * @offset: Base read / write address
- * @length: Number of bytes to read / write
- * @buf: Destination / source buffer
- *
- * @return 8-bit checksum of all bytes read / written
- */
-u8 cros_ec_lpc_io_bytes_mec(enum cros_ec_lpc_mec_io_type io_type,
- unsigned int offset, unsigned int length, u8 *buf);
-
-#endif /* __LINUX_MFD_CROS_EC_MEC_H */