// SPDX-License-Identifier: GPL-2.0
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/*
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* Support for Intel Camera Imaging ISP subsystem.
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* Copyright (c) 2010-2015, Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*/
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#include <linux/delay.h>
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#include <system_global.h>
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#include "isp.h"
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#ifndef __INLINE_ISP__
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#include "isp_private.h"
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#endif /* __INLINE_ISP__ */
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#include "assert_support.h"
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void cnd_isp_irq_enable(
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const isp_ID_t ID,
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const bool cnd)
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{
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if (cnd) {
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isp_ctrl_setbit(ID, ISP_IRQ_READY_REG, ISP_IRQ_READY_BIT);
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/* Enabling the IRQ immediately triggers an interrupt, clear it */
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isp_ctrl_setbit(ID, ISP_IRQ_CLEAR_REG, ISP_IRQ_CLEAR_BIT);
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} else {
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isp_ctrl_clearbit(ID, ISP_IRQ_READY_REG,
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ISP_IRQ_READY_BIT);
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}
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return;
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}
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void isp_get_state(
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const isp_ID_t ID,
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isp_state_t *state,
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isp_stall_t *stall)
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{
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hrt_data sc = isp_ctrl_load(ID, ISP_SC_REG);
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assert(state);
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assert(stall);
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#if defined(_hrt_sysmem_ident_address)
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/* Patch to avoid compiler unused symbol warning in C_RUN build */
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(void)__hrt_sysmem_ident_address;
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(void)_hrt_sysmem_map_var;
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#endif
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state->pc = isp_ctrl_load(ID, ISP_PC_REG);
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state->status_register = sc;
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state->is_broken = isp_ctrl_getbit(ID, ISP_SC_REG, ISP_BROKEN_BIT);
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state->is_idle = isp_ctrl_getbit(ID, ISP_SC_REG, ISP_IDLE_BIT);
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state->is_sleeping = isp_ctrl_getbit(ID, ISP_SC_REG, ISP_SLEEPING_BIT);
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state->is_stalling = isp_ctrl_getbit(ID, ISP_SC_REG, ISP_STALLING_BIT);
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stall->stat_ctrl =
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!isp_ctrl_getbit(ID, ISP_CTRL_SINK_REG, ISP_CTRL_SINK_BIT);
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stall->pmem =
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!isp_ctrl_getbit(ID, ISP_PMEM_SINK_REG, ISP_PMEM_SINK_BIT);
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stall->dmem =
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!isp_ctrl_getbit(ID, ISP_DMEM_SINK_REG, ISP_DMEM_SINK_BIT);
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stall->vmem =
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!isp_ctrl_getbit(ID, ISP_VMEM_SINK_REG, ISP_VMEM_SINK_BIT);
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stall->fifo0 =
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!isp_ctrl_getbit(ID, ISP_FIFO0_SINK_REG, ISP_FIFO0_SINK_BIT);
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stall->fifo1 =
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!isp_ctrl_getbit(ID, ISP_FIFO1_SINK_REG, ISP_FIFO1_SINK_BIT);
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stall->fifo2 =
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!isp_ctrl_getbit(ID, ISP_FIFO2_SINK_REG, ISP_FIFO2_SINK_BIT);
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stall->fifo3 =
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!isp_ctrl_getbit(ID, ISP_FIFO3_SINK_REG, ISP_FIFO3_SINK_BIT);
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stall->fifo4 =
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!isp_ctrl_getbit(ID, ISP_FIFO4_SINK_REG, ISP_FIFO4_SINK_BIT);
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stall->fifo5 =
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!isp_ctrl_getbit(ID, ISP_FIFO5_SINK_REG, ISP_FIFO5_SINK_BIT);
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stall->fifo6 =
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!isp_ctrl_getbit(ID, ISP_FIFO6_SINK_REG, ISP_FIFO6_SINK_BIT);
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stall->vamem1 =
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!isp_ctrl_getbit(ID, ISP_VAMEM1_SINK_REG, ISP_VAMEM1_SINK_BIT);
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stall->vamem2 =
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!isp_ctrl_getbit(ID, ISP_VAMEM2_SINK_REG, ISP_VAMEM2_SINK_BIT);
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stall->vamem3 =
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!isp_ctrl_getbit(ID, ISP_VAMEM3_SINK_REG, ISP_VAMEM3_SINK_BIT);
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stall->hmem =
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!isp_ctrl_getbit(ID, ISP_HMEM_SINK_REG, ISP_HMEM_SINK_BIT);
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/*
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stall->icache_master =
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!isp_ctrl_getbit(ID, ISP_ICACHE_MT_SINK_REG,
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ISP_ICACHE_MT_SINK_BIT);
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*/
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return;
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}
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/* ISP functions to control the ISP state from the host, even in crun. */
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/* Inspect readiness of an ISP indexed by ID */
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unsigned int isp_is_ready(isp_ID_t ID)
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{
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assert(ID < N_ISP_ID);
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return isp_ctrl_getbit(ID, ISP_SC_REG, ISP_IDLE_BIT);
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}
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/* Inspect sleeping of an ISP indexed by ID */
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unsigned int isp_is_sleeping(isp_ID_t ID)
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{
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assert(ID < N_ISP_ID);
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return isp_ctrl_getbit(ID, ISP_SC_REG, ISP_SLEEPING_BIT);
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}
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/* To be called by the host immediately before starting ISP ID. */
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void isp_start(isp_ID_t ID)
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{
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assert(ID < N_ISP_ID);
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}
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/* Wake up ISP ID. */
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void isp_wake(isp_ID_t ID)
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{
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assert(ID < N_ISP_ID);
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isp_ctrl_setbit(ID, ISP_SC_REG, ISP_START_BIT);
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udelay(1);
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}
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