370 /* pasemi_dma_alloc_flag - Allocate a flag (event) for channel synchronization
372  * Allocates a flag for use with channel synchronization (event descriptors).
373  * Returns allocated flag (0-63), < 0 on error.
391 /* pasemi_dma_free_flag - Deallocates a flag (event)
392  * @flag: Flag number to deallocate
394  * Frees up a flag so it can be reused for other purposes.
396 void pasemi_dma_free_flag(int flag)  in pasemi_dma_free_flag()  argument
398 	BUG_ON(test_bit(flag, flags_free));  in pasemi_dma_free_flag()
399 	BUG_ON(flag >= MAX_FLAGS);  in pasemi_dma_free_flag()
400 	set_bit(flag, flags_free);  in pasemi_dma_free_flag()
405 /* pasemi_dma_set_flag - Sets a flag (event) to 1
406  * @flag: Flag number to set active
408  * Sets the flag provided to 1.
410 void pasemi_dma_set_flag(int flag)  in pasemi_dma_set_flag()  argument
412 	BUG_ON(flag >= MAX_FLAGS);  in pasemi_dma_set_flag()
413 	if (flag < 32)  in pasemi_dma_set_flag()
414 		pasemi_write_dma_reg(PAS_DMA_TXF_SFLG0, 1 << flag);  in pasemi_dma_set_flag()
416 		pasemi_write_dma_reg(PAS_DMA_TXF_SFLG1, 1 << flag);  in pasemi_dma_set_flag()
420 /* pasemi_dma_clear_flag - Sets a flag (event) to 0
421  * @flag: Flag number to set inactive
423  * Sets the flag provided to 0.
425 void pasemi_dma_clear_flag(int flag)  in pasemi_dma_clear_flag()  argument
427 	BUG_ON(flag >= MAX_FLAGS);  in pasemi_dma_clear_flag()
428 	if (flag < 32)  in pasemi_dma_clear_flag()
429 		pasemi_write_dma_reg(PAS_DMA_TXF_CFLG0, 1 << flag);  in pasemi_dma_clear_flag()
431 		pasemi_write_dma_reg(PAS_DMA_TXF_CFLG1, 1 << flag);  in pasemi_dma_clear_flag()
457  * @flag: Engine number to deallocate