projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blame
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1 | /* Cypress West Bridge API header file (cyasintr.h) |
| 2 | ## =========================== | |
| 3 | ## Copyright (C) 2010 Cypress Semiconductor | |
| 4 | ## | |
| 5 | ## This program is free software; you can redistribute it and/or | |
| 6 | ## modify it under the terms of the GNU General Public License | |
| 7 | ## as published by the Free Software Foundation; either version 2 | |
| 8 | ## of the License, or (at your option) any later version. | |
| 9 | ## | |
| 10 | ## This program is distributed in the hope that it will be useful, | |
| 11 | ## but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 | ## GNU General Public License for more details. | |
| 14 | ## | |
| 15 | ## You should have received a copy of the GNU General Public License | |
| 16 | ## along with this program; if not, write to the Free Software | |
| 17 | ## Foundation, Inc., 51 Franklin Street | |
| 18 | ## Fifth Floor, Boston, MA 02110-1301, USA. | |
| 19 | ## =========================== | |
| 20 | */ | |
| 21 | ||
| 22 | #ifndef _INCLUDED_CYASINTR_H_ | |
| 23 | #define _INCLUDED_CYASINTR_H_ | |
| 24 | ||
| 25 | #include "cyasdevice.h" | |
| 26 | ||
| 27 | #include "cyas_cplus_start.h" | |
| 28 | ||
| 29 | /* Summary | |
| 30 | Initialize the interrupt manager module | |
| 31 | ||
| 32 | Description | |
| 33 | This function is called to initialize the interrupt module. | |
| 34 | This module enables interrupts as well as servies West Bridge | |
| 35 | related interrupts by determining the source of the interrupt | |
| 36 | and calling the appropriate handler function. | |
| 37 | ||
| 38 | Notes | |
| 39 | If the dmaintr parameter is TRUE, the initialization code | |
| 40 | initializes the interrupt mask to have the DMA related interrupt | |
| 41 | enabled via the general purpose interrupt. However, the interrupt | |
| 42 | service function assumes that the DMA interrupt is handled by the | |
| 43 | HAL layer before the interrupt module handler function is called. | |
| 44 | ||
| 45 | Returns | |
| 46 | * CY_AS_ERROR_SUCCESS - the interrupt module was initialized | |
| 47 | * correctly | |
| 48 | * CY_AS_ERROR_ALREADY_RUNNING - the interrupt module was already | |
| 49 | * started | |
| 50 | ||
| 51 | See Also | |
| 52 | * CyAsIntrStop | |
| 53 | * CyAsServiceInterrupt | |
| 54 | */ | |
| 55 | cy_as_return_status_t | |
| 56 | cy_as_intr_start( | |
| 57 | /* Device being initialized */ | |
| 58 | cy_as_device *dev_p, | |
| 59 | /* If true, enable the DMA interrupt through the INT signal */ | |
| 60 | cy_bool dmaintr | |
| 0769c38d | 61 | ); |
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62 | |
| 63 | /* Summary | |
| 64 | Stop the interrupt manager module | |
| 65 | ||
| 66 | Description | |
| 67 | This function stops the interrupt module and masks all interrupts | |
| 68 | from the West Bridge device. | |
| 69 | ||
| 70 | Returns | |
| 71 | * CY_AS_ERROR_SUCCESS - the interrupt module was stopped | |
| 25985edc | 72 | * successfully |
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73 | * CY_AS_ERROR_NOT_RUNNING - the interrupt module was not |
| 74 | * running | |
| 75 | ||
| 76 | See Also | |
| 77 | * CyAsIntrStart | |
| 78 | * CyAsServiceInterrupt | |
| 79 | */ | |
| 80 | cy_as_return_status_t | |
| 81 | cy_as_intr_stop( | |
| 82 | /* Device bein stopped */ | |
| 83 | cy_as_device *dev_p | |
| 0769c38d | 84 | ); |
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85 | |
| 86 | ||
| 87 | /* Summary | |
| 88 | The interrupt service routine for West Bridge | |
| 89 | ||
| 90 | Description | |
| 91 | When an interrupt is detected, this function is called to | |
| 92 | service the West Bridge interrupt. It is safe and efficient | |
| 93 | for this function to be called when no West Bridge interrupt | |
| 94 | has occurred. This function will determine it is not an West | |
| 95 | Bridge interrupt quickly and return. | |
| 96 | */ | |
| 97 | void cy_as_intr_service_interrupt( | |
| 98 | /* The USER supplied tag for this device */ | |
| 99 | cy_as_hal_device_tag tag | |
| 0769c38d | 100 | ); |
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101 | |
| 102 | #include "cyas_cplus_end.h" | |
| 103 | ||
| 104 | #endif /* _INCLUDED_CYASINTR_H_ */ |