Subversion Repositories Kolibri OS

Rev

Rev 6125 | Go to most recent revision | Blame | Compare with Previous | Last modification | View Log | Download | RSS feed

  1. /* include this file if the platform implements the dma_ DMA Mapping API
  2.  * and wants to provide the pci_ DMA Mapping API in terms of it */
  3.  
  4. #ifndef _ASM_GENERIC_PCI_DMA_COMPAT_H
  5. #define _ASM_GENERIC_PCI_DMA_COMPAT_H
  6.  
  7. #include <linux/dma-mapping.h>
  8.  
  9. static inline void *
  10. pci_zalloc_consistent(struct pci_dev *hwdev, size_t size,
  11.                       dma_addr_t *dma_handle)
  12. {
  13.         return dma_zalloc_coherent(hwdev == NULL ? NULL : &hwdev->dev,
  14.                                    size, dma_handle, GFP_ATOMIC);
  15. }
  16.  
  17. static inline dma_addr_t
  18. pci_map_single(struct pci_dev *hwdev, void *ptr, size_t size, int direction)
  19. {
  20.         return dma_map_single(hwdev == NULL ? NULL : &hwdev->dev, ptr, size, (enum dma_data_direction)direction);
  21. }
  22.  
  23. static inline void
  24. pci_unmap_single(struct pci_dev *hwdev, dma_addr_t dma_addr,
  25.                  size_t size, int direction)
  26. {
  27.         dma_unmap_single(hwdev == NULL ? NULL : &hwdev->dev, dma_addr, size, (enum dma_data_direction)direction);
  28. }
  29.  
  30. static inline dma_addr_t
  31. pci_map_page(struct pci_dev *hwdev, struct page *page,
  32.              unsigned long offset, size_t size, int direction)
  33. {
  34.     return (dma_addr_t)( (offset)+page_to_phys(page));
  35. }
  36.  
  37. static inline void
  38. pci_unmap_page(struct pci_dev *hwdev, dma_addr_t dma_address,
  39.                size_t size, int direction)
  40. {
  41.  
  42. }
  43. #define pci_map_page(dev, page, offset, size, direction) \
  44.         (dma_addr_t)( (offset)+page_to_phys(page))
  45.  
  46. #define pci_unmap_page(dev, dma_address, size, direction)
  47.  
  48. static inline int
  49. pci_map_sg(struct pci_dev *hwdev, struct scatterlist *sg,
  50.            int nents, int direction)
  51. {
  52.         return dma_map_sg(hwdev == NULL ? NULL : &hwdev->dev, sg, nents, (enum dma_data_direction)direction);
  53. }
  54.  
  55. static inline void
  56. pci_unmap_sg(struct pci_dev *hwdev, struct scatterlist *sg,
  57.              int nents, int direction)
  58. {
  59.         dma_unmap_sg(hwdev == NULL ? NULL : &hwdev->dev, sg, nents, (enum dma_data_direction)direction);
  60. }
  61.  
  62. static inline void
  63. pci_dma_sync_single_for_cpu(struct pci_dev *hwdev, dma_addr_t dma_handle,
  64.                     size_t size, int direction)
  65. {
  66.         dma_sync_single_for_cpu(hwdev == NULL ? NULL : &hwdev->dev, dma_handle, size, (enum dma_data_direction)direction);
  67. }
  68.  
  69. static inline void
  70. pci_dma_sync_single_for_device(struct pci_dev *hwdev, dma_addr_t dma_handle,
  71.                     size_t size, int direction)
  72. {
  73.         dma_sync_single_for_device(hwdev == NULL ? NULL : &hwdev->dev, dma_handle, size, (enum dma_data_direction)direction);
  74. }
  75.  
  76. static inline void
  77. pci_dma_sync_sg_for_cpu(struct pci_dev *hwdev, struct scatterlist *sg,
  78.                 int nelems, int direction)
  79. {
  80.         dma_sync_sg_for_cpu(hwdev == NULL ? NULL : &hwdev->dev, sg, nelems, (enum dma_data_direction)direction);
  81. }
  82.  
  83. static inline void
  84. pci_dma_sync_sg_for_device(struct pci_dev *hwdev, struct scatterlist *sg,
  85.                 int nelems, int direction)
  86. {
  87.         dma_sync_sg_for_device(hwdev == NULL ? NULL : &hwdev->dev, sg, nelems, (enum dma_data_direction)direction);
  88. }
  89.  
  90. static inline int
  91. pci_dma_mapping_error(struct pci_dev *pdev, dma_addr_t dma_addr)
  92. {
  93.         return dma_mapping_error(&pdev->dev, dma_addr);
  94. }
  95.  
  96. #ifdef CONFIG_PCI
  97. static inline int pci_set_dma_mask(struct pci_dev *dev, u64 mask)
  98. {
  99.         return dma_set_mask(&dev->dev, mask);
  100. }
  101.  
  102. static inline int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask)
  103. {
  104.         return dma_set_coherent_mask(&dev->dev, mask);
  105. }
  106. #endif
  107.  
  108. #endif
  109.