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https://github.com/Telecominfraproject/OpenCellular.git
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7946a3eb3d
Now both copies of the event state live in host_event_commands.c, and lpc / memmap just shadows the main copy. BUG=chrome-os-partner:11172 TEST=manual Boot system. should see events 0x2000, 0x80, 0x08 get set and then cleared. At U-boot prompt, type on keyboard. Should set event 0x1000 get set, but only on the first keypress (because U-boot doesn't consume that event). Then from EC console, hostevent clear 0x1000 -> see event 0x1000 clear hostevent clear 0x1000 -> no debug output (it's already clear) hostevent clearb 0x1000 -> see event copy B 0x1000 clear hostevent clearb 0x1000 -> no debug output (copy B is already clear) Change-Id: I855c035865649ba1490cd9027157d5bcdcc9895f Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/27321
70 lines
1.8 KiB
C
70 lines
1.8 KiB
C
/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* LPC module for Chrome EC */
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#ifndef __CROS_EC_LPC_H
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#define __CROS_EC_LPC_H
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#include "common.h"
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/*
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* Manually generate an IRQ to host.
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* Note that the irq_num == 0 would set the AH bit (Active High).
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*/
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void lpc_manual_irq(int irq_num);
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/*
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* Return a pointer to the memory-mapped buffer. This buffer is writable at
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* any time, and the host can read it at any time.
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*/
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uint8_t *lpc_get_memmap_range(void);
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/* Return true if the TOH is still set */
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int lpc_keyboard_has_char(void);
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/* Send a byte to host via port 0x60 and asserts IRQ if specified. */
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void lpc_keyboard_put_char(uint8_t chr, int send_irq);
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/* Clear the keyboard buffer. */
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void lpc_keyboard_clear_buffer(void);
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/* Send an IRQ to host if there is a byte in buffer already. */
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void lpc_keyboard_resume_irq(void);
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/* Return non-zero if the COMx interface has received a character. */
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int lpc_comx_has_char(void);
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/* Return the next character pending on the COMx interface. */
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int lpc_comx_get_char(void);
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/* Put a character to the COMx LPC interface. */
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void lpc_comx_put_char(int c);
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/*
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* Low-level LPC interface for host events.
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*
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* For use by host_event_commands.c. Other modules should use the methods
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* provided in host_command.h.
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*/
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/* Types of host events */
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enum lpc_host_event_type {
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LPC_HOST_EVENT_SMI = 0,
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LPC_HOST_EVENT_SCI,
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LPC_HOST_EVENT_WAKE,
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};
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/* Set the event state */
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void lpc_set_host_event_state(uint32_t mask);
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/* Set the event mask for the specified event type. */
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void lpc_set_host_event_mask(enum lpc_host_event_type type, uint32_t mask);
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/* Return the event mask for the specified event type. */
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uint32_t lpc_get_host_event_mask(enum lpc_host_event_type type);
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#endif /* __CROS_EC_LPC_H */
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