diff options
Diffstat (limited to 'drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/isys/src/csi_rx_rmgr.c')
| -rw-r--r-- | drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/isys/src/csi_rx_rmgr.c | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/isys/src/csi_rx_rmgr.c b/drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/isys/src/csi_rx_rmgr.c new file mode 100644 index 0000000..d1d4f79 --- /dev/null +++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/isys/src/csi_rx_rmgr.c @@ -0,0 +1,179 @@ +#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 "ia_css_pipeline.h" /* ia_css_pipeline_get_pipe_io_status() */ +#include "sh_css_internal.h" /* sh_css_sp_pipeline_io_status + * SH_CSS_MAX_SP_THREADS + */ +#include "csi_rx_rmgr.h" + +static isys_csi_rx_rsrc_t isys_csi_rx_rsrc[N_CSI_RX_BACKEND_ID]; + +void ia_css_isys_csi_rx_lut_rmgr_init(void) +{ + memset(isys_csi_rx_rsrc, 0, sizeof(isys_csi_rx_rsrc)); +} + +void ia_css_isys_csi_rx_lut_rmgr_uninit(void) +{ + memset(isys_csi_rx_rsrc, 0, sizeof(isys_csi_rx_rsrc)); +} + +bool ia_css_isys_csi_rx_lut_rmgr_acquire( + csi_rx_backend_ID_t backend, + csi_mipi_packet_type_t packet_type, + csi_rx_backend_lut_entry_t *entry) +{ + bool retval = false; + uint32_t max_num_packets_of_type; + uint32_t num_active_of_type; + isys_csi_rx_rsrc_t *cur_rsrc = NULL; + uint16_t i; + + assert(backend < N_CSI_RX_BACKEND_ID); + assert((packet_type == CSI_MIPI_PACKET_TYPE_LONG) || (packet_type == CSI_MIPI_PACKET_TYPE_SHORT)); + assert(entry != NULL); + + if ((backend < N_CSI_RX_BACKEND_ID) && (entry != NULL)) { + cur_rsrc = &isys_csi_rx_rsrc[backend]; + if (packet_type == CSI_MIPI_PACKET_TYPE_LONG) { + max_num_packets_of_type = N_LONG_PACKET_LUT_ENTRIES[backend]; + num_active_of_type = cur_rsrc->num_long_packets; + } else { + max_num_packets_of_type = N_SHORT_PACKET_LUT_ENTRIES[backend]; + num_active_of_type = cur_rsrc->num_short_packets; + } + + if (num_active_of_type < max_num_packets_of_type) { + for (i = 0; i < max_num_packets_of_type; i++) { + if (bitop_getbit(cur_rsrc->active_table, i) == 0) { + bitop_setbit(cur_rsrc->active_table, i); + + if (packet_type == CSI_MIPI_PACKET_TYPE_LONG) { + entry->long_packet_entry = i; + entry->short_packet_entry = 0; + cur_rsrc->num_long_packets++; + } else { + entry->long_packet_entry = 0; + entry->short_packet_entry = i; + cur_rsrc->num_short_packets++; + } + cur_rsrc->num_active++; + retval = true; + break; + } + } + } + } + return retval; +} + +void ia_css_isys_csi_rx_lut_rmgr_release( + csi_rx_backend_ID_t backend, + csi_mipi_packet_type_t packet_type, + csi_rx_backend_lut_entry_t *entry) +{ + uint32_t max_num_packets; + isys_csi_rx_rsrc_t *cur_rsrc = NULL; + uint32_t packet_entry = 0; + + assert(backend < N_CSI_RX_BACKEND_ID); + assert(entry != NULL); + assert((packet_type >= CSI_MIPI_PACKET_TYPE_LONG) || (packet_type <= CSI_MIPI_PACKET_TYPE_SHORT)); + + if ((backend < N_CSI_RX_BACKEND_ID) && (entry != NULL)) { + if (packet_type == CSI_MIPI_PACKET_TYPE_LONG) { + max_num_packets = N_LONG_PACKET_LUT_ENTRIES[backend]; + packet_entry = entry->long_packet_entry; + } else { + max_num_packets = N_SHORT_PACKET_LUT_ENTRIES[backend]; + packet_entry = entry->short_packet_entry; + } + + cur_rsrc = &isys_csi_rx_rsrc[backend]; + if ((packet_entry < max_num_packets) && (cur_rsrc->num_active > 0)) { + if (bitop_getbit(cur_rsrc->active_table, packet_entry) == 1) { + bitop_clearbit(cur_rsrc->active_table, packet_entry); + + if (packet_type == CSI_MIPI_PACKET_TYPE_LONG) + cur_rsrc->num_long_packets--; + else + cur_rsrc->num_short_packets--; + cur_rsrc->num_active--; + } + } + } +} + +enum ia_css_err ia_css_isys_csi_rx_register_stream( + enum ia_css_csi2_port port, + uint32_t isys_stream_id) +{ + enum ia_css_err retval = IA_CSS_ERR_INTERNAL_ERROR; + + if ((port < N_INPUT_SYSTEM_CSI_PORT) && + (isys_stream_id < SH_CSS_MAX_ISYS_CHANNEL_NODES)) { + struct sh_css_sp_pipeline_io_status *pipe_io_status; + pipe_io_status = ia_css_pipeline_get_pipe_io_status(); + if (bitop_getbit(pipe_io_status->active[port], isys_stream_id) == 0) { + bitop_setbit(pipe_io_status->active[port], isys_stream_id); + pipe_io_status->running[port] = 0; + retval = IA_CSS_SUCCESS; + } + } + return retval; +} + +enum ia_css_err ia_css_isys_csi_rx_unregister_stream( + enum ia_css_csi2_port port, + uint32_t isys_stream_id) +{ + enum ia_css_err retval = IA_CSS_ERR_INTERNAL_ERROR; + + if ((port < N_INPUT_SYSTEM_CSI_PORT) && + (isys_stream_id < SH_CSS_MAX_ISYS_CHANNEL_NODES)) { + struct sh_css_sp_pipeline_io_status *pipe_io_status; + pipe_io_status = ia_css_pipeline_get_pipe_io_status(); + if (bitop_getbit(pipe_io_status->active[port], isys_stream_id) == 1) { + bitop_clearbit(pipe_io_status->active[port], isys_stream_id); + retval = IA_CSS_SUCCESS; + } + } + return retval; +} +#endif |
