161 lines
4.1 KiB
C
161 lines
4.1 KiB
C
/***************************************************************************
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*
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* Copyright 2015-2019 BES.
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* All rights reserved. All unpublished rights reserved.
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*
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* No part of this work may be used or reproduced in any form or by any
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* means, or stored in a database or retrieval system, without prior written
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* permission of BES.
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*
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* Use of this work is governed by a license granted by BES.
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* This work contains confidential and proprietary information of
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* BES. which is protected by copyright, trade secret,
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* trademark and other intellectual property rights.
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*
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****************************************************************************/
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#include "plat_types.h"
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#include "hal_sysfreq.h"
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#include "hal_location.h"
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#include "hal_trace.h"
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#include "cmsis.h"
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#ifndef ROM_BUILD
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#include "pmu.h"
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#endif
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static uint32_t BOOT_BSS_LOC sysfreq_bundle[(HAL_SYSFREQ_USER_QTY + 3) / 4];
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static uint8_t * const sysfreq_per_user = (uint8_t *)&sysfreq_bundle[0];
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static enum HAL_SYSFREQ_USER_T BOOT_DATA_LOC top_user = HAL_SYSFREQ_USER_QTY;
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static enum HAL_CMU_FREQ_T BOOT_DATA_LOC min_sysfreq = HAL_CMU_FREQ_26M;
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static enum HAL_CMU_FREQ_T hal_sysfreq_revise_freq(enum HAL_CMU_FREQ_T freq)
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{
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return freq > min_sysfreq ? freq : min_sysfreq;
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}
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void hal_sysfreq_set_min_freq(enum HAL_CMU_FREQ_T freq)
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{
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uint32_t lock;
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lock = int_lock();
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if (min_sysfreq < freq) {
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min_sysfreq = freq;
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if (min_sysfreq > hal_sysfreq_get()) {
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hal_cmu_sys_set_freq(min_sysfreq);
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}
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}
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int_unlock(lock);
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}
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int hal_sysfreq_req(enum HAL_SYSFREQ_USER_T user, enum HAL_CMU_FREQ_T freq)
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{
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uint32_t lock;
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enum HAL_CMU_FREQ_T cur_sys_freq;
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int i;
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if (user >= HAL_SYSFREQ_USER_QTY) {
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return 1;
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}
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if (freq >= HAL_CMU_FREQ_QTY) {
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return 2;
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}
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lock = int_lock();
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cur_sys_freq = hal_sysfreq_get();
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sysfreq_per_user[user] = freq;
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if (freq == cur_sys_freq) {
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top_user = user;
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} else if (freq > cur_sys_freq) {
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top_user = user;
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freq = hal_sysfreq_revise_freq(freq);
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#ifndef ROM_BUILD
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pmu_sys_freq_config(freq);
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#ifdef ULTRA_LOW_POWER
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// Enable PLL if required
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hal_cmu_low_freq_mode_disable(hal_sysfreq_revise_freq(cur_sys_freq), freq);
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#endif
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#endif
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hal_cmu_sys_set_freq(freq);
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} else /* if (freq < cur_sys_freq) */ {
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if (top_user == user || top_user == HAL_SYSFREQ_USER_QTY) {
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if (top_user == user) {
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freq = sysfreq_per_user[0];
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user = 0;
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for (i = 1; i < HAL_SYSFREQ_USER_QTY; i++) {
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if (freq < sysfreq_per_user[i]) {
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freq = sysfreq_per_user[i];
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user = i;
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}
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}
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}
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top_user = user;
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if (freq != cur_sys_freq) {
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freq = hal_sysfreq_revise_freq(freq);
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hal_cmu_sys_set_freq(freq);
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#ifndef ROM_BUILD
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#ifdef ULTRA_LOW_POWER
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// Disable PLL if capable
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hal_cmu_low_freq_mode_enable(hal_sysfreq_revise_freq(cur_sys_freq), freq);
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#endif
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pmu_sys_freq_config(freq);
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#endif
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}
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}
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}
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int_unlock(lock);
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return 0;
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}
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enum HAL_CMU_FREQ_T hal_sysfreq_get(void)
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{
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if (top_user < HAL_SYSFREQ_USER_QTY) {
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return sysfreq_per_user[top_user];
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} else {
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return hal_cmu_sys_get_freq();
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}
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}
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enum HAL_CMU_FREQ_T hal_sysfreq_get_hw_freq(void)
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{
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if (top_user < HAL_SYSFREQ_USER_QTY) {
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return hal_sysfreq_revise_freq(sysfreq_per_user[top_user]);
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} else {
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return hal_cmu_sys_get_freq();
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}
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}
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int hal_sysfreq_busy(void)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(sysfreq_bundle); i++) {
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if (sysfreq_bundle[i] != 0) {
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return 1;
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}
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}
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return 0;
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}
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void hal_sysfreq_print(void)
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{
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int i;
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for (i = 0; i < HAL_SYSFREQ_USER_QTY; i++) {
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if (sysfreq_per_user[i] != 0) {
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TRACE(2,"*** SYSFREQ user=%d freq=%d", i, sysfreq_per_user[i]);
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}
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}
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TRACE(1,"*** SYSFREQ top_user=%d", top_user);
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}
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