dma/bestcomm/fec.c

83 	struct bcom_task *tsk;
86 	tsk = bcom_task_alloc(queue_len, sizeof(struct bcom_fec_bd),
88 	if (!tsk)
91 	tsk->flags = BCOM_FLAGS_NONE;
93 	priv = tsk->priv;
97 	if (bcom_fec_rx_reset(tsk)) {
98 		bcom_task_free(tsk);
102 	return tsk;
107 bcom_fec_rx_reset(struct bcom_task *tsk)
109 	struct bcom_fec_priv *priv = tsk->priv;
114 	bcom_disable_task(tsk->tasknum);
117 	var = (struct bcom_fec_rx_var *) bcom_task_var(tsk->tasknum);
118 	inc = (struct bcom_fec_rx_inc *) bcom_task_inc(tsk->tasknum);
120 	if (bcom_load_image(tsk->tasknum, bcom_fec_rx_task))
124 				offsetof(struct mpc52xx_sdma, tcr[tsk->tasknum]);
126 	var->bd_base	= tsk->bd_pa;
127 	var->bd_last	= tsk->bd_pa + ((tsk->num_bd-1) * tsk->bd_size);
128 	var->bd_start	= tsk->bd_pa;
136 	tsk->index = 0;
137 	tsk->outdex = 0;
139 	memset_io(tsk->bd, 0x00, tsk->num_bd * tsk->bd_size);
142 	bcom_set_task_pragma(tsk->tasknum, BCOM_FEC_RX_BD_PRAGMA);
143 	bcom_set_task_auto_start(tsk->tasknum, tsk->tasknum);
147 	out_be32(&bcom_eng->regs->IntPend, 1<<tsk->tasknum);	/* Clear ints */
154 bcom_fec_rx_release(struct bcom_task *tsk)
157 	bcom_task_free(tsk);
185 	struct bcom_task *tsk;
188 	tsk = bcom_task_alloc(queue_len, sizeof(struct bcom_fec_bd),
190 	if (!tsk)
193 	tsk->flags = BCOM_FLAGS_ENABLE_TASK;
195 	priv = tsk->priv;
198 	if (bcom_fec_tx_reset(tsk)) {
199 		bcom_task_free(tsk);
203 	return tsk;
208 bcom_fec_tx_reset(struct bcom_task *tsk)
210 	struct bcom_fec_priv *priv = tsk->priv;
215 	bcom_disable_task(tsk->tasknum);
218 	var = (struct bcom_fec_tx_var *) bcom_task_var(tsk->tasknum);
219 	inc = (struct bcom_fec_tx_inc *) bcom_task_inc(tsk->tasknum);
221 	if (bcom_load_image(tsk->tasknum, bcom_fec_tx_task))
225 				offsetof(struct mpc52xx_sdma, tcr[tsk->tasknum]);
227 	var->DRD	= bcom_sram_va2pa(self_modified_drd(tsk->tasknum));
228 	var->bd_base	= tsk->bd_pa;
229 	var->bd_last	= tsk->bd_pa + ((tsk->num_bd-1) * tsk->bd_size);
230 	var->bd_start	= tsk->bd_pa;
237 	tsk->index = 0;
238 	tsk->outdex = 0;
240 	memset_io(tsk->bd, 0x00, tsk->num_bd * tsk->bd_size);
243 	bcom_set_task_pragma(tsk->tasknum, BCOM_FEC_TX_BD_PRAGMA);
244 	bcom_set_task_auto_start(tsk->tasknum, tsk->tasknum);
248 	out_be32(&bcom_eng->regs->IntPend, 1<<tsk->tasknum);	/* Clear ints */
255 bcom_fec_tx_release(struct bcom_task *tsk)
258 	bcom_task_free(tsk);