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