19 void comedi_isadma_program(struct comedi_isadma_desc *desc)  in comedi_isadma_program()  argument
24 	clear_dma_ff(desc->chan);  in comedi_isadma_program()
25 	set_dma_mode(desc->chan, desc->mode);  in comedi_isadma_program()
26 	set_dma_addr(desc->chan, desc->hw_addr);  in comedi_isadma_program()
27 	set_dma_count(desc->chan, desc->size);  in comedi_isadma_program()
28 	enable_dma(desc->chan);  in comedi_isadma_program()
100 	struct comedi_isadma_desc *desc = &dma->desc[dma->cur_dma];  in comedi_isadma_poll()  local
106 	clear_dma_ff(desc->chan);  in comedi_isadma_poll()
108 		disable_dma(desc->chan);  in comedi_isadma_poll()
109 	result = get_dma_residue(desc->chan);  in comedi_isadma_poll()
115 	result1 = get_dma_residue(desc->chan);  in comedi_isadma_poll()
117 		enable_dma(desc->chan);  in comedi_isadma_poll()
122 	if (result >= desc->size || result == 0)  in comedi_isadma_poll()
124 	return desc->size - result;  in comedi_isadma_poll()
133 void comedi_isadma_set_mode(struct comedi_isadma_desc *desc, char dma_dir)  in comedi_isadma_set_mode()  argument
135 	desc->mode = (dma_dir == COMEDI_ISADMA_READ) ? DMA_MODE_READ  in comedi_isadma_set_mode()
157 	struct comedi_isadma_desc *desc;  in comedi_isadma_alloc()  local
168 	desc = kcalloc(n_desc, sizeof(*desc), GFP_KERNEL);  in comedi_isadma_alloc()
169 	if (!desc)  in comedi_isadma_alloc()
171 	dma->desc = desc;  in comedi_isadma_alloc()
203 		desc = &dma->desc[i];  in comedi_isadma_alloc()
204 		desc->chan = dma_chans[i];  in comedi_isadma_alloc()
205 		desc->maxsize = maxsize;  in comedi_isadma_alloc()
206 		desc->virt_addr = dma_alloc_coherent(dma->dev, desc->maxsize,  in comedi_isadma_alloc()
207 						     &desc->hw_addr,  in comedi_isadma_alloc()
209 		if (!desc->virt_addr)  in comedi_isadma_alloc()
211 		comedi_isadma_set_mode(desc, dma_dir);  in comedi_isadma_alloc()
228 	struct comedi_isadma_desc *desc;  in comedi_isadma_free()  local
234 	if (dma->desc) {  in comedi_isadma_free()
236 			desc = &dma->desc[i];  in comedi_isadma_free()
237 			if (desc->virt_addr)  in comedi_isadma_free()
238 				dma_free_coherent(dma->dev, desc->maxsize,  in comedi_isadma_free()
239 						  desc->virt_addr,  in comedi_isadma_free()
240 						  desc->hw_addr);  in comedi_isadma_free()
242 		kfree(dma->desc);  in comedi_isadma_free()