0edf419852
`ectool -q` - Query the EC IRQ byte. Should return 0x00 otherwise the IRQ handler is usally broken or disabled. Tested-on: Lenovo X201t Change-Id: I0b8c2dbcf38d2eab89d0fbea05795759c4517f6d Signed-off-by: Alexander Couzens <lynxis@fe80.eu> Reviewed-on: http://review.coreboot.org/8382 Tested-by: build bot (Jenkins) Reviewed-by: Nicolas Reinecke <nr@das-labor.org> Reviewed-by: Peter Stuge <peter@stuge.se>
55 lines
2.0 KiB
C
55 lines
2.0 KiB
C
/*
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* This file is part of the ectool project.
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*
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* Copyright (C) 2008-2009 coresystems GmbH
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _EC_H
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#define _EC_H
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#define EC_DATA 0x62
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#define EC_SC 0x66
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/* EC_SC input */
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#define EC_SMI_EVT (1 << 6) // 1: SMI event pending
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#define EC_SCI_EVT (1 << 5) // 1: SCI event pending
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#define EC_BURST (1 << 4) // controller is in burst mode
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#define EC_CMD (1 << 3) // 1: byte in data register is command
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// 0: byte in data register is data
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#define EC_IBF (1 << 1) // 1: input buffer full (data ready for ec)
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#define EC_OBF (1 << 0) // 1: output buffer full (data ready for host)
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/* EC_SC output */
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#define RD_EC 0x80 // Read Embedded Controller
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#define WR_EC 0x81 // Write Embedded Controller
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#define BE_EC 0x82 // Burst Enable Embedded Controller
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#define BD_EC 0x83 // Burst Disable Embedded Controller
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#define QR_EC 0x84 // Query Embedded Controller
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#define RX_EC 0xf0 // Read Extended operation
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#define WX_EC 0xf1 // Write Extended operation
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int send_ec_command(uint8_t command);
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int send_ec_data(uint8_t data);
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int send_ec_data_nowait(uint8_t data);
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uint8_t recv_ec_data(void);
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uint8_t ec_read(uint8_t addr);
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int ec_write(uint8_t addr, uint8_t data);
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uint8_t ec_ext_read(uint16_t addr);
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int ec_ext_write(uint16_t addr, uint8_t data);
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uint8_t ec_idx_read(uint16_t addr);
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uint8_t ec_query(void);
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#endif
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