31 lines
655 B
C
31 lines
655 B
C
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/*
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* Copyright (c) 2022 Intel Corporation.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <errno.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include "comm_widget.h"
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#include "pmc_interface.h"
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/*
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* Report number of used HP-SRAM memory banks to the PMC, unit is 32 KB.
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*/
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int adsp_comm_widget_pmc_send_ipc(uint16_t banks)
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{
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if (!cw_upstream_ready())
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return -EBUSY;
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uint32_t iface = FIELD_PREP(CW_PMC_IPC_OP_CODE, CW_PMC_OPC_SRAM_CONFIG) |
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FIELD_PREP(CW_PMC_IPC_SRAM_USED_BANKS, banks) |
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CW_PMC_IPC_BUSY;
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cw_sb_write(CW_PMC_DESTID_VALUE, 0, CW_PMC_MAILBOX3_INTERFACE_ADDRESS, iface);
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cw_upstream_wait_for_sent();
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return 0;
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}
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