diff options
Diffstat (limited to 'drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/isys/src/isys_stream2mmio_rmgr.c')
| -rw-r--r-- | drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/isys/src/isys_stream2mmio_rmgr.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/isys/src/isys_stream2mmio_rmgr.c b/drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/isys/src/isys_stream2mmio_rmgr.c new file mode 100644 index 0000000..a93c7f4 --- /dev/null +++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/isys/src/isys_stream2mmio_rmgr.c @@ -0,0 +1,105 @@ +#ifndef ISP2401 +/* + * Support for Intel Camera Imaging ISP subsystem. + * Copyright (c) 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. + */ +#else +/** +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. +*/ +#endif + +#include "system_global.h" + +#ifdef USE_INPUT_SYSTEM_VERSION_2401 + +#include "assert_support.h" +#include "platform_support.h" +#include "ia_css_isys.h" +#include "bitop_support.h" +#include "isys_stream2mmio_rmgr.h" + +static isys_stream2mmio_rsrc_t isys_stream2mmio_rsrc[N_STREAM2MMIO_ID]; + +void ia_css_isys_stream2mmio_sid_rmgr_init(void) +{ + memset(isys_stream2mmio_rsrc, 0, sizeof(isys_stream2mmio_rsrc)); +} + +void ia_css_isys_stream2mmio_sid_rmgr_uninit(void) +{ + memset(isys_stream2mmio_rsrc, 0, sizeof(isys_stream2mmio_rsrc)); +} + +bool ia_css_isys_stream2mmio_sid_rmgr_acquire( + stream2mmio_ID_t stream2mmio, + stream2mmio_sid_ID_t *sid) +{ + bool retval = false; + stream2mmio_sid_ID_t max_sid; + isys_stream2mmio_rsrc_t *cur_rsrc = NULL; + stream2mmio_sid_ID_t i; + + assert(stream2mmio < N_STREAM2MMIO_ID); + assert(sid != NULL); + + if ((stream2mmio < N_STREAM2MMIO_ID) && (sid != NULL)) { + max_sid = N_STREAM2MMIO_SID_PROCS[stream2mmio]; + cur_rsrc = &isys_stream2mmio_rsrc[stream2mmio]; + + if (cur_rsrc->num_active < max_sid) { + for (i = STREAM2MMIO_SID0_ID; i < max_sid; i++) { + if (bitop_getbit(cur_rsrc->active_table, i) == 0) { + bitop_setbit(cur_rsrc->active_table, i); + *sid = i; + cur_rsrc->num_active++; + retval = true; + break; + } + } + } + } + return retval; +} + +void ia_css_isys_stream2mmio_sid_rmgr_release( + stream2mmio_ID_t stream2mmio, + stream2mmio_sid_ID_t *sid) +{ + stream2mmio_sid_ID_t max_sid; + isys_stream2mmio_rsrc_t *cur_rsrc = NULL; + + assert(stream2mmio < N_STREAM2MMIO_ID); + assert(sid != NULL); + + if ((stream2mmio < N_STREAM2MMIO_ID) && (sid != NULL)) { + max_sid = N_STREAM2MMIO_SID_PROCS[stream2mmio]; + cur_rsrc = &isys_stream2mmio_rsrc[stream2mmio]; + if ((*sid < max_sid) && (cur_rsrc->num_active > 0)) { + if (bitop_getbit(cur_rsrc->active_table, *sid) == 1) { + bitop_clearbit(cur_rsrc->active_table, *sid); + cur_rsrc->num_active--; + } + } + } +} +#endif |
