/* SPDX-License-Identifier: GPL-2.0 */
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#include <linux/delay.h>
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#include <linux/err.h>
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#include <linux/export.h>
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#include <linux/gpio.h>
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#include <linux/interrupt.h>
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#include <linux/irq.h>
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#include <linux/kthread.h>
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#include <linux/module.h>
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#include <linux/spinlock.h>
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//#include <linux/wakelock.h>
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#include <wcn_bus.h>
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#include "sdio_int.h"
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#include "slp_mgr.h"
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#include "slp_sdio.h"
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#include "wcn_glb.h"
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int slp_allow_sleep(void)
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{
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union CP_SLP_CTL_REG reg_slp_ctl = {0};
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reg_slp_ctl.bit.cp_slp_ctl = 1;
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sprdwcn_bus_aon_writeb(REG_CP_SLP_CTL, reg_slp_ctl.reg);
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sdio_ap_int_cp0(ALLOW_CP_SLP);
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/* make SLP_CTL high_level keep 2 cycle of 32khz */
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udelay(65);
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return 0;
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}
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static void req_slp_isr(void)
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{
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struct slp_mgr_t *slp_mgr;
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slp_mgr = slp_get_info();
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mutex_lock(&(slp_mgr->drv_slp_lock));
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/* allow sleep */
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if (slp_mgr->active_module == 0) {
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SLP_MGR_INFO("allow sleep\n");
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slp_allow_sleep();
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atomic_set(&(slp_mgr->cp2_state), STAY_SLPING);
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} else {
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SLP_MGR_INFO("forbid slp module-0x%x\n",
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slp_mgr->active_module);
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}
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mutex_unlock(&(slp_mgr->drv_slp_lock));
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}
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static void wakeup_ack_isr(void)
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{
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struct slp_mgr_t *slp_mgr;
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slp_mgr = slp_get_info();
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if (STAY_SLPING == (atomic_read(&(slp_mgr->cp2_state)))) {
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SLP_MGR_INFO("wakeup ack");
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complete(&(slp_mgr->wakeup_ack_completion));
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} else
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SLP_MGR_INFO("discard wakeup ack");
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}
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int slp_pub_int_RegCb(void)
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{
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sdio_pub_int_RegCb(WAKEUP_ACK, (PUB_INT_ISR)wakeup_ack_isr);
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sdio_pub_int_RegCb(REQ_SLP, (PUB_INT_ISR)req_slp_isr);
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return 0;
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}
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