diff options
Diffstat (limited to 'drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/isp.c')
| -rw-r--r-- | drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/isp.c | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/isp.c b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/isp.c new file mode 100644 index 0000000..47c21e4 --- /dev/null +++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/isp.c @@ -0,0 +1,129 @@ +/* + * 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 <system_global.h> +#include "isp.h" + +#ifndef __INLINE_ISP__ +#include "isp_private.h" +#endif /* __INLINE_ISP__ */ + +#include "assert_support.h" +#include "platform_support.h" /* hrt_sleep() */ + +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 != NULL); + assert(stall != NULL); + +#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 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 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); + hrt_sleep(); +} + |
