1 // SPDX-License-Identifier: GPL-2.0
3 * Support for Intel Camera Imaging ISP subsystem.
4 * Copyright (c) 2010-2015, Intel Corporation.
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
16 #include <system_global.h>
19 #ifndef __INLINE_ISP__
20 #include "isp_private.h"
21 #endif /* __INLINE_ISP__ */
23 #include "assert_support.h"
24 #include "platform_support.h" /* hrt_sleep() */
26 void cnd_isp_irq_enable(
31 isp_ctrl_setbit(ID, ISP_IRQ_READY_REG, ISP_IRQ_READY_BIT);
32 /* Enabling the IRQ immediately triggers an interrupt, clear it */
33 isp_ctrl_setbit(ID, ISP_IRQ_CLEAR_REG, ISP_IRQ_CLEAR_BIT);
35 isp_ctrl_clearbit(ID, ISP_IRQ_READY_REG,
46 hrt_data sc = isp_ctrl_load(ID, ISP_SC_REG);
51 #if defined(_hrt_sysmem_ident_address)
52 /* Patch to avoid compiler unused symbol warning in C_RUN build */
53 (void)__hrt_sysmem_ident_address;
54 (void)_hrt_sysmem_map_var;
57 state->pc = isp_ctrl_load(ID, ISP_PC_REG);
58 state->status_register = sc;
59 state->is_broken = isp_ctrl_getbit(ID, ISP_SC_REG, ISP_BROKEN_BIT);
60 state->is_idle = isp_ctrl_getbit(ID, ISP_SC_REG, ISP_IDLE_BIT);
61 state->is_sleeping = isp_ctrl_getbit(ID, ISP_SC_REG, ISP_SLEEPING_BIT);
62 state->is_stalling = isp_ctrl_getbit(ID, ISP_SC_REG, ISP_STALLING_BIT);
64 !isp_ctrl_getbit(ID, ISP_CTRL_SINK_REG, ISP_CTRL_SINK_BIT);
66 !isp_ctrl_getbit(ID, ISP_PMEM_SINK_REG, ISP_PMEM_SINK_BIT);
68 !isp_ctrl_getbit(ID, ISP_DMEM_SINK_REG, ISP_DMEM_SINK_BIT);
70 !isp_ctrl_getbit(ID, ISP_VMEM_SINK_REG, ISP_VMEM_SINK_BIT);
72 !isp_ctrl_getbit(ID, ISP_FIFO0_SINK_REG, ISP_FIFO0_SINK_BIT);
74 !isp_ctrl_getbit(ID, ISP_FIFO1_SINK_REG, ISP_FIFO1_SINK_BIT);
76 !isp_ctrl_getbit(ID, ISP_FIFO2_SINK_REG, ISP_FIFO2_SINK_BIT);
78 !isp_ctrl_getbit(ID, ISP_FIFO3_SINK_REG, ISP_FIFO3_SINK_BIT);
80 !isp_ctrl_getbit(ID, ISP_FIFO4_SINK_REG, ISP_FIFO4_SINK_BIT);
82 !isp_ctrl_getbit(ID, ISP_FIFO5_SINK_REG, ISP_FIFO5_SINK_BIT);
84 !isp_ctrl_getbit(ID, ISP_FIFO6_SINK_REG, ISP_FIFO6_SINK_BIT);
86 !isp_ctrl_getbit(ID, ISP_VAMEM1_SINK_REG, ISP_VAMEM1_SINK_BIT);
88 !isp_ctrl_getbit(ID, ISP_VAMEM2_SINK_REG, ISP_VAMEM2_SINK_BIT);
90 !isp_ctrl_getbit(ID, ISP_VAMEM3_SINK_REG, ISP_VAMEM3_SINK_BIT);
92 !isp_ctrl_getbit(ID, ISP_HMEM_SINK_REG, ISP_HMEM_SINK_BIT);
94 stall->icache_master =
95 !isp_ctrl_getbit(ID, ISP_ICACHE_MT_SINK_REG,
96 ISP_ICACHE_MT_SINK_BIT);
101 /* ISP functions to control the ISP state from the host, even in crun. */
103 /* Inspect readiness of an ISP indexed by ID */
104 unsigned int isp_is_ready(isp_ID_t ID)
106 assert(ID < N_ISP_ID);
107 return isp_ctrl_getbit(ID, ISP_SC_REG, ISP_IDLE_BIT);
110 /* Inspect sleeping of an ISP indexed by ID */
111 unsigned int isp_is_sleeping(isp_ID_t ID)
113 assert(ID < N_ISP_ID);
114 return isp_ctrl_getbit(ID, ISP_SC_REG, ISP_SLEEPING_BIT);
117 /* To be called by the host immediately before starting ISP ID. */
118 void isp_start(isp_ID_t ID)
120 assert(ID < N_ISP_ID);
123 /* Wake up ISP ID. */
124 void isp_wake(isp_ID_t ID)
126 assert(ID < N_ISP_ID);
127 isp_ctrl_setbit(ID, ISP_SC_REG, ISP_START_BIT);