Lines Matching full:data
34 #define PCH_SPDWR 0x0C /* SPI write data register */
35 #define PCH_SPDRR 0x10 /* SPI read data register */
142 * @bpw_len: Length of data to be transferred in bits per
145 * @tx_index: Transmit data count; for bookkeeping during
147 * @rx_index: Receive data count; for bookkeeping during
149 * @tx_buff: Buffer for data to be transmitted
150 * @rx_index: Buffer for Received data
159 * @board_dat: Reference to the SPI device data structure
228 struct pch_spi_data *data = spi_master_get_devdata(master); in pch_spi_writereg() local
229 iowrite32(val, (data->io_remap_addr + idx)); in pch_spi_writereg()
239 struct pch_spi_data *data = spi_master_get_devdata(master); in pch_spi_readreg() local
240 return ioread32(data->io_remap_addr + idx); in pch_spi_readreg()
266 static void pch_spi_handler_sub(struct pch_spi_data *data, u32 reg_spsr_val, in pch_spi_handler_sub() argument
280 if (data->transfer_active) { in pch_spi_handler_sub()
281 rx_index = data->rx_index; in pch_spi_handler_sub()
282 tx_index = data->tx_index; in pch_spi_handler_sub()
283 bpw_len = data->bpw_len; in pch_spi_handler_sub()
284 pkt_rx_buffer = data->pkt_rx_buff; in pch_spi_handler_sub()
285 pkt_tx_buff = data->pkt_tx_buff; in pch_spi_handler_sub()
311 data->tx_index = tx_index; in pch_spi_handler_sub()
312 data->rx_index = rx_index; in pch_spi_handler_sub()
318 pch_spi_setclr_reg(data->master, PCH_SPCR, 0, in pch_spi_handler_sub()
323 data->transfer_complete = true; in pch_spi_handler_sub()
324 data->transfer_active = false; in pch_spi_handler_sub()
325 wake_up(&data->wait); in pch_spi_handler_sub()
327 dev_vdbg(&data->master->dev, in pch_spi_handler_sub()
346 struct pch_spi_data *data = dev_id; in pch_spi_handler() local
347 struct pch_spi_board_data *board_dat = data->board_dat; in pch_spi_handler()
355 io_remap_addr = data->io_remap_addr; in pch_spi_handler()
362 if (data->current_msg->complete) { in pch_spi_handler()
363 data->transfer_complete = true; in pch_spi_handler()
364 data->current_msg->status = -EIO; in pch_spi_handler()
365 data->current_msg->complete(data->current_msg->context); in pch_spi_handler()
366 data->bcurrent_msg_processing = false; in pch_spi_handler()
367 data->current_msg = NULL; in pch_spi_handler()
368 data->cur_trans = NULL; in pch_spi_handler()
372 if (data->use_dma) in pch_spi_handler()
377 pch_spi_handler_sub(data, reg_spsr_val, io_remap_addr); in pch_spi_handler()
463 struct pch_spi_data *data = spi_master_get_devdata(pspi->master); in pch_spi_transfer() local
467 spin_lock_irqsave(&data->lock, flags); in pch_spi_transfer()
488 spin_unlock_irqrestore(&data->lock, flags); in pch_spi_transfer()
491 if (data->status == STATUS_EXITING) { in pch_spi_transfer()
498 if (data->board_dat->suspend_sts) { in pch_spi_transfer()
509 spin_lock_irqsave(&data->lock, flags); in pch_spi_transfer()
511 list_add_tail(&pmsg->queue, &data->queue); in pch_spi_transfer()
512 spin_unlock_irqrestore(&data->lock, flags); in pch_spi_transfer()
516 schedule_work(&data->work); in pch_spi_transfer()
526 spin_unlock_irqrestore(&data->lock, flags); in pch_spi_transfer()
530 static inline void pch_spi_select_chip(struct pch_spi_data *data, in pch_spi_select_chip() argument
533 if (data->current_chip != NULL) { in pch_spi_select_chip()
534 if (pspi->chip_select != data->n_curnt_chip) { in pch_spi_select_chip()
536 data->current_chip = NULL; in pch_spi_select_chip()
540 data->current_chip = pspi; in pch_spi_select_chip()
542 data->n_curnt_chip = data->current_chip->chip_select; in pch_spi_select_chip()
548 static void pch_spi_set_tx(struct pch_spi_data *data, int *bpw) in pch_spi_set_tx() argument
558 if (data->cur_trans->speed_hz) { in pch_spi_set_tx()
559 dev_dbg(&data->master->dev, "%s:setting baud rate\n", __func__); in pch_spi_set_tx()
560 pch_spi_set_baud_rate(data->master, data->cur_trans->speed_hz); in pch_spi_set_tx()
564 if (data->cur_trans->bits_per_word && in pch_spi_set_tx()
565 (data->current_msg->spi->bits_per_word != data->cur_trans->bits_per_word)) { in pch_spi_set_tx()
566 dev_dbg(&data->master->dev, "%s:set bits per word\n", __func__); in pch_spi_set_tx()
567 pch_spi_set_bits_per_word(data->master, in pch_spi_set_tx()
568 data->cur_trans->bits_per_word); in pch_spi_set_tx()
569 *bpw = data->cur_trans->bits_per_word; in pch_spi_set_tx()
571 *bpw = data->current_msg->spi->bits_per_word; in pch_spi_set_tx()
575 data->tx_index = 0; in pch_spi_set_tx()
576 data->rx_index = 0; in pch_spi_set_tx()
578 data->bpw_len = data->cur_trans->len / (*bpw / 8); in pch_spi_set_tx()
581 size = data->cur_trans->len * sizeof(*data->pkt_tx_buff); in pch_spi_set_tx()
584 data->pkt_tx_buff = kzalloc(size, GFP_KERNEL); in pch_spi_set_tx()
585 if (data->pkt_tx_buff != NULL) { in pch_spi_set_tx()
586 data->pkt_rx_buff = kzalloc(size, GFP_KERNEL); in pch_spi_set_tx()
587 if (!data->pkt_rx_buff) in pch_spi_set_tx()
588 kfree(data->pkt_tx_buff); in pch_spi_set_tx()
591 if (!data->pkt_rx_buff) { in pch_spi_set_tx()
593 list_for_each_entry_safe(pmsg, tmp, data->queue.next, queue) { in pch_spi_set_tx()
605 /* copy Tx Data */ in pch_spi_set_tx()
606 if (data->cur_trans->tx_buf != NULL) { in pch_spi_set_tx()
608 tx_buf = data->cur_trans->tx_buf; in pch_spi_set_tx()
609 for (j = 0; j < data->bpw_len; j++) in pch_spi_set_tx()
610 data->pkt_tx_buff[j] = *tx_buf++; in pch_spi_set_tx()
612 tx_sbuf = data->cur_trans->tx_buf; in pch_spi_set_tx()
613 for (j = 0; j < data->bpw_len; j++) in pch_spi_set_tx()
614 data->pkt_tx_buff[j] = *tx_sbuf++; in pch_spi_set_tx()
619 n_writes = data->bpw_len; in pch_spi_set_tx()
623 dev_dbg(&data->master->dev, in pch_spi_set_tx()
626 pch_spi_writereg(data->master, PCH_SSNXCR, SSN_LOW); in pch_spi_set_tx()
629 pch_spi_writereg(data->master, PCH_SPDWR, data->pkt_tx_buff[j]); in pch_spi_set_tx()
632 data->tx_index = j; in pch_spi_set_tx()
635 data->transfer_complete = false; in pch_spi_set_tx()
636 data->transfer_active = true; in pch_spi_set_tx()
639 static void pch_spi_nomore_transfer(struct pch_spi_data *data) in pch_spi_nomore_transfer() argument
642 dev_dbg(&data->master->dev, "%s called\n", __func__); in pch_spi_nomore_transfer()
645 data->current_msg->status = 0; in pch_spi_nomore_transfer()
647 if (data->current_msg->complete) { in pch_spi_nomore_transfer()
648 dev_dbg(&data->master->dev, in pch_spi_nomore_transfer()
650 data->current_msg->complete(data->current_msg->context); in pch_spi_nomore_transfer()
654 data->bcurrent_msg_processing = false; in pch_spi_nomore_transfer()
656 dev_dbg(&data->master->dev, in pch_spi_nomore_transfer()
657 "%s:data->bcurrent_msg_processing = false\n", __func__); in pch_spi_nomore_transfer()
659 data->current_msg = NULL; in pch_spi_nomore_transfer()
660 data->cur_trans = NULL; in pch_spi_nomore_transfer()
664 if ((list_empty(&data->queue) == 0) && in pch_spi_nomore_transfer()
665 (!data->board_dat->suspend_sts) && in pch_spi_nomore_transfer()
666 (data->status != STATUS_EXITING)) { in pch_spi_nomore_transfer()
671 dev_dbg(&data->master->dev, "%s:Invoke queue_work\n", __func__); in pch_spi_nomore_transfer()
672 schedule_work(&data->work); in pch_spi_nomore_transfer()
673 } else if (data->board_dat->suspend_sts || in pch_spi_nomore_transfer()
674 data->status == STATUS_EXITING) { in pch_spi_nomore_transfer()
675 dev_dbg(&data->master->dev, in pch_spi_nomore_transfer()
678 list_for_each_entry_safe(pmsg, tmp, data->queue.next, queue) { in pch_spi_nomore_transfer()
690 static void pch_spi_set_ir(struct pch_spi_data *data) in pch_spi_set_ir() argument
693 if ((data->bpw_len) > PCH_MAX_FIFO_DEPTH) in pch_spi_set_ir()
695 pch_spi_setclr_reg(data->master, PCH_SPCR, in pch_spi_set_ir()
702 pch_spi_setclr_reg(data->master, PCH_SPCR, in pch_spi_set_ir()
710 dev_dbg(&data->master->dev, in pch_spi_set_ir()
713 wait_event_interruptible(data->wait, data->transfer_complete); in pch_spi_set_ir()
716 pch_spi_writereg(data->master, PCH_SPSR, in pch_spi_set_ir()
717 pch_spi_readreg(data->master, PCH_SPSR)); in pch_spi_set_ir()
719 pch_spi_setclr_reg(data->master, PCH_SPCR, 0, PCH_ALL | SPCR_SPE_BIT); in pch_spi_set_ir()
721 pch_spi_clear_fifo(data->master); in pch_spi_set_ir()
724 static void pch_spi_copy_rx_data(struct pch_spi_data *data, int bpw) in pch_spi_copy_rx_data() argument
730 /* copy Rx Data */ in pch_spi_copy_rx_data()
731 if (!data->cur_trans->rx_buf) in pch_spi_copy_rx_data()
735 rx_buf = data->cur_trans->rx_buf; in pch_spi_copy_rx_data()
736 for (j = 0; j < data->bpw_len; j++) in pch_spi_copy_rx_data()
737 *rx_buf++ = data->pkt_rx_buff[j] & 0xFF; in pch_spi_copy_rx_data()
739 rx_sbuf = data->cur_trans->rx_buf; in pch_spi_copy_rx_data()
740 for (j = 0; j < data->bpw_len; j++) in pch_spi_copy_rx_data()
741 *rx_sbuf++ = data->pkt_rx_buff[j]; in pch_spi_copy_rx_data()
745 static void pch_spi_copy_rx_data_for_dma(struct pch_spi_data *data, int bpw) in pch_spi_copy_rx_data_for_dma() argument
753 /* copy Rx Data */ in pch_spi_copy_rx_data_for_dma()
754 if (!data->cur_trans->rx_buf) in pch_spi_copy_rx_data_for_dma()
758 rx_buf = data->cur_trans->rx_buf; in pch_spi_copy_rx_data_for_dma()
759 rx_dma_buf = data->dma.rx_buf_virt; in pch_spi_copy_rx_data_for_dma()
760 for (j = 0; j < data->bpw_len; j++) in pch_spi_copy_rx_data_for_dma()
762 data->cur_trans->rx_buf = rx_buf; in pch_spi_copy_rx_data_for_dma()
764 rx_sbuf = data->cur_trans->rx_buf; in pch_spi_copy_rx_data_for_dma()
765 rx_dma_sbuf = data->dma.rx_buf_virt; in pch_spi_copy_rx_data_for_dma()
766 for (j = 0; j < data->bpw_len; j++) in pch_spi_copy_rx_data_for_dma()
768 data->cur_trans->rx_buf = rx_sbuf; in pch_spi_copy_rx_data_for_dma()
772 static int pch_spi_start_transfer(struct pch_spi_data *data) in pch_spi_start_transfer() argument
778 dma = &data->dma; in pch_spi_start_transfer()
780 spin_lock_irqsave(&data->lock, flags); in pch_spi_start_transfer()
783 pch_spi_setclr_reg(data->master, PCH_SPCR, SPCR_SPE_BIT, PCH_ALL); in pch_spi_start_transfer()
785 spin_unlock_irqrestore(&data->lock, flags); in pch_spi_start_transfer()
789 dev_dbg(&data->master->dev, in pch_spi_start_transfer()
791 rtn = wait_event_interruptible_timeout(data->wait, in pch_spi_start_transfer()
792 data->transfer_complete, in pch_spi_start_transfer()
795 dev_err(&data->master->dev, in pch_spi_start_transfer()
798 dma_sync_sg_for_cpu(&data->master->dev, dma->sg_rx_p, dma->nent, in pch_spi_start_transfer()
801 dma_sync_sg_for_cpu(&data->master->dev, dma->sg_tx_p, dma->nent, in pch_spi_start_transfer()
803 memset(data->dma.tx_buf_virt, 0, PAGE_SIZE); in pch_spi_start_transfer()
810 spin_lock_irqsave(&data->lock, flags); in pch_spi_start_transfer()
813 pch_spi_setclr_reg(data->master, PCH_SPCR, 0, in pch_spi_start_transfer()
817 pch_spi_writereg(data->master, PCH_SPSR, in pch_spi_start_transfer()
818 pch_spi_readreg(data->master, PCH_SPSR)); in pch_spi_start_transfer()
820 pch_spi_clear_fifo(data->master); in pch_spi_start_transfer()
822 spin_unlock_irqrestore(&data->lock, flags); in pch_spi_start_transfer()
829 struct pch_spi_data *data = arg; in pch_dma_rx_complete() local
832 data->transfer_complete = true; in pch_dma_rx_complete()
833 wake_up_interruptible(&data->wait); in pch_dma_rx_complete()
849 static void pch_spi_request_dma(struct pch_spi_data *data, int bpw) in pch_spi_request_dma() argument
863 dma = &data->dma; in pch_spi_request_dma()
868 dma_dev = pci_get_slot(data->board_dat->pdev->bus, in pch_spi_request_dma()
869 PCI_DEVFN(PCI_SLOT(data->board_dat->pdev->devfn), 0)); in pch_spi_request_dma()
874 param->chan_id = data->ch * 2; /* Tx = 0, 2 */; in pch_spi_request_dma()
875 param->tx_reg = data->io_base_addr + PCH_SPDWR; in pch_spi_request_dma()
879 dev_err(&data->master->dev, in pch_spi_request_dma()
881 data->use_dma = 0; in pch_spi_request_dma()
889 param->chan_id = data->ch * 2 + 1; /* Rx = Tx + 1 */; in pch_spi_request_dma()
890 param->rx_reg = data->io_base_addr + PCH_SPDRR; in pch_spi_request_dma()
894 dev_err(&data->master->dev, in pch_spi_request_dma()
898 data->use_dma = 0; in pch_spi_request_dma()
904 static void pch_spi_release_dma(struct pch_spi_data *data) in pch_spi_release_dma() argument
908 dma = &data->dma; in pch_spi_release_dma()
919 static void pch_spi_handle_dma(struct pch_spi_data *data, int *bpw) in pch_spi_handle_dma() argument
936 dma = &data->dma; in pch_spi_handle_dma()
939 if (data->cur_trans->speed_hz) { in pch_spi_handle_dma()
940 dev_dbg(&data->master->dev, "%s:setting baud rate\n", __func__); in pch_spi_handle_dma()
941 spin_lock_irqsave(&data->lock, flags); in pch_spi_handle_dma()
942 pch_spi_set_baud_rate(data->master, data->cur_trans->speed_hz); in pch_spi_handle_dma()
943 spin_unlock_irqrestore(&data->lock, flags); in pch_spi_handle_dma()
947 if (data->cur_trans->bits_per_word && in pch_spi_handle_dma()
948 (data->current_msg->spi->bits_per_word != in pch_spi_handle_dma()
949 data->cur_trans->bits_per_word)) { in pch_spi_handle_dma()
950 dev_dbg(&data->master->dev, "%s:set bits per word\n", __func__); in pch_spi_handle_dma()
951 spin_lock_irqsave(&data->lock, flags); in pch_spi_handle_dma()
952 pch_spi_set_bits_per_word(data->master, in pch_spi_handle_dma()
953 data->cur_trans->bits_per_word); in pch_spi_handle_dma()
954 spin_unlock_irqrestore(&data->lock, flags); in pch_spi_handle_dma()
955 *bpw = data->cur_trans->bits_per_word; in pch_spi_handle_dma()
957 *bpw = data->current_msg->spi->bits_per_word; in pch_spi_handle_dma()
959 data->bpw_len = data->cur_trans->len / (*bpw / 8); in pch_spi_handle_dma()
961 if (data->bpw_len > PCH_BUF_SIZE) { in pch_spi_handle_dma()
962 data->bpw_len = PCH_BUF_SIZE; in pch_spi_handle_dma()
963 data->cur_trans->len -= PCH_BUF_SIZE; in pch_spi_handle_dma()
966 /* copy Tx Data */ in pch_spi_handle_dma()
967 if (data->cur_trans->tx_buf != NULL) { in pch_spi_handle_dma()
969 tx_buf = data->cur_trans->tx_buf; in pch_spi_handle_dma()
971 for (i = 0; i < data->bpw_len; i++) in pch_spi_handle_dma()
974 tx_sbuf = data->cur_trans->tx_buf; in pch_spi_handle_dma()
976 for (i = 0; i < data->bpw_len; i++) in pch_spi_handle_dma()
982 if (data->bpw_len > PCH_DMA_TRANS_SIZE) { in pch_spi_handle_dma()
983 if (data->bpw_len % PCH_DMA_TRANS_SIZE) { in pch_spi_handle_dma()
984 num = data->bpw_len / PCH_DMA_TRANS_SIZE + 1; in pch_spi_handle_dma()
985 rem = data->bpw_len % PCH_DMA_TRANS_SIZE; in pch_spi_handle_dma()
987 num = data->bpw_len / PCH_DMA_TRANS_SIZE; in pch_spi_handle_dma()
993 size = data->bpw_len; in pch_spi_handle_dma()
994 rem = data->bpw_len; in pch_spi_handle_dma()
996 dev_dbg(&data->master->dev, "%s num=%d size=%d rem=%d\n", in pch_spi_handle_dma()
998 spin_lock_irqsave(&data->lock, flags); in pch_spi_handle_dma()
1001 pch_spi_setclr_reg(data->master, PCH_SPCR, in pch_spi_handle_dma()
1006 spin_unlock_irqrestore(&data->lock, flags); in pch_spi_handle_dma()
1043 dev_err(&data->master->dev, in pch_spi_handle_dma()
1047 dma_sync_sg_for_device(&data->master->dev, sg, num, DMA_FROM_DEVICE); in pch_spi_handle_dma()
1049 desc_rx->callback_param = data; in pch_spi_handle_dma()
1054 if (data->bpw_len > PCH_MAX_FIFO_DEPTH) { in pch_spi_handle_dma()
1056 if (data->bpw_len % PCH_DMA_TRANS_SIZE > 4) { in pch_spi_handle_dma()
1057 num = data->bpw_len / PCH_DMA_TRANS_SIZE + 1; in pch_spi_handle_dma()
1058 rem = data->bpw_len % PCH_DMA_TRANS_SIZE - head; in pch_spi_handle_dma()
1060 num = data->bpw_len / PCH_DMA_TRANS_SIZE; in pch_spi_handle_dma()
1061 rem = data->bpw_len % PCH_DMA_TRANS_SIZE + in pch_spi_handle_dma()
1067 size = data->bpw_len; in pch_spi_handle_dma()
1068 rem = data->bpw_len; in pch_spi_handle_dma()
1105 dev_err(&data->master->dev, in pch_spi_handle_dma()
1109 dma_sync_sg_for_device(&data->master->dev, sg, num, DMA_TO_DEVICE); in pch_spi_handle_dma()
1111 desc_tx->callback_param = data; in pch_spi_handle_dma()
1115 dev_dbg(&data->master->dev, "%s:Pulling down SSN low - writing 0x2 to SSNXCR\n", __func__); in pch_spi_handle_dma()
1117 spin_lock_irqsave(&data->lock, flags); in pch_spi_handle_dma()
1118 pch_spi_writereg(data->master, PCH_SSNXCR, SSN_LOW); in pch_spi_handle_dma()
1121 spin_unlock_irqrestore(&data->lock, flags); in pch_spi_handle_dma()
1124 data->transfer_complete = false; in pch_spi_handle_dma()
1130 struct pch_spi_data *data; in pch_spi_process_messages() local
1133 data = container_of(pwork, struct pch_spi_data, work); in pch_spi_process_messages()
1134 dev_dbg(&data->master->dev, "%s data initialized\n", __func__); in pch_spi_process_messages()
1136 spin_lock(&data->lock); in pch_spi_process_messages()
1138 if (data->board_dat->suspend_sts || (data->status == STATUS_EXITING)) { in pch_spi_process_messages()
1139 dev_dbg(&data->master->dev, in pch_spi_process_messages()
1141 list_for_each_entry_safe(pmsg, tmp, data->queue.next, queue) { in pch_spi_process_messages()
1145 spin_unlock(&data->lock); in pch_spi_process_messages()
1147 spin_lock(&data->lock); in pch_spi_process_messages()
1154 spin_unlock(&data->lock); in pch_spi_process_messages()
1158 data->bcurrent_msg_processing = true; in pch_spi_process_messages()
1159 dev_dbg(&data->master->dev, in pch_spi_process_messages()
1160 "%s Set data->bcurrent_msg_processing= true\n", __func__); in pch_spi_process_messages()
1163 data->current_msg = list_entry(data->queue.next, struct spi_message, in pch_spi_process_messages()
1166 list_del_init(&data->current_msg->queue); in pch_spi_process_messages()
1168 data->current_msg->status = 0; in pch_spi_process_messages()
1170 pch_spi_select_chip(data, data->current_msg->spi); in pch_spi_process_messages()
1172 spin_unlock(&data->lock); in pch_spi_process_messages()
1174 if (data->use_dma) in pch_spi_process_messages()
1175 pch_spi_request_dma(data, in pch_spi_process_messages()
1176 data->current_msg->spi->bits_per_word); in pch_spi_process_messages()
1177 pch_spi_writereg(data->master, PCH_SSNXCR, SSN_NO_CONTROL); in pch_spi_process_messages()
1183 spin_lock(&data->lock); in pch_spi_process_messages()
1184 if (data->cur_trans == NULL) { in pch_spi_process_messages()
1185 data->cur_trans = in pch_spi_process_messages()
1186 list_entry(data->current_msg->transfers.next, in pch_spi_process_messages()
1188 dev_dbg(&data->master->dev, in pch_spi_process_messages()
1192 data->cur_trans = in pch_spi_process_messages()
1193 list_entry(data->cur_trans->transfer_list.next, in pch_spi_process_messages()
1195 dev_dbg(&data->master->dev, in pch_spi_process_messages()
1199 spin_unlock(&data->lock); in pch_spi_process_messages()
1201 if (!data->cur_trans->len) in pch_spi_process_messages()
1203 cnt = (data->cur_trans->len - 1) / PCH_BUF_SIZE + 1; in pch_spi_process_messages()
1204 data->save_total_len = data->cur_trans->len; in pch_spi_process_messages()
1205 if (data->use_dma) { in pch_spi_process_messages()
1207 char *save_rx_buf = data->cur_trans->rx_buf; in pch_spi_process_messages()
1209 pch_spi_handle_dma(data, &bpw); in pch_spi_process_messages()
1210 if (!pch_spi_start_transfer(data)) { in pch_spi_process_messages()
1211 data->transfer_complete = true; in pch_spi_process_messages()
1212 data->current_msg->status = -EIO; in pch_spi_process_messages()
1213 data->current_msg->complete in pch_spi_process_messages()
1214 (data->current_msg->context); in pch_spi_process_messages()
1215 data->bcurrent_msg_processing = false; in pch_spi_process_messages()
1216 data->current_msg = NULL; in pch_spi_process_messages()
1217 data->cur_trans = NULL; in pch_spi_process_messages()
1220 pch_spi_copy_rx_data_for_dma(data, bpw); in pch_spi_process_messages()
1222 data->cur_trans->rx_buf = save_rx_buf; in pch_spi_process_messages()
1224 pch_spi_set_tx(data, &bpw); in pch_spi_process_messages()
1225 pch_spi_set_ir(data); in pch_spi_process_messages()
1226 pch_spi_copy_rx_data(data, bpw); in pch_spi_process_messages()
1227 kfree(data->pkt_rx_buff); in pch_spi_process_messages()
1228 data->pkt_rx_buff = NULL; in pch_spi_process_messages()
1229 kfree(data->pkt_tx_buff); in pch_spi_process_messages()
1230 data->pkt_tx_buff = NULL; in pch_spi_process_messages()
1233 data->cur_trans->len = data->save_total_len; in pch_spi_process_messages()
1234 data->current_msg->actual_length += data->cur_trans->len; in pch_spi_process_messages()
1236 dev_dbg(&data->master->dev, in pch_spi_process_messages()
1237 "%s:data->current_msg->actual_length=%d\n", in pch_spi_process_messages()
1238 __func__, data->current_msg->actual_length); in pch_spi_process_messages()
1241 if (data->cur_trans->delay_usecs) { in pch_spi_process_messages()
1242 dev_dbg(&data->master->dev, "%s:delay in usec=%d\n", in pch_spi_process_messages()
1243 __func__, data->cur_trans->delay_usecs); in pch_spi_process_messages()
1244 udelay(data->cur_trans->delay_usecs); in pch_spi_process_messages()
1247 spin_lock(&data->lock); in pch_spi_process_messages()
1250 if ((data->cur_trans->transfer_list.next) == in pch_spi_process_messages()
1251 &(data->current_msg->transfers)) { in pch_spi_process_messages()
1252 pch_spi_nomore_transfer(data); in pch_spi_process_messages()
1255 spin_unlock(&data->lock); in pch_spi_process_messages()
1257 } while (data->cur_trans != NULL); in pch_spi_process_messages()
1260 pch_spi_writereg(data->master, PCH_SSNXCR, SSN_HIGH); in pch_spi_process_messages()
1261 if (data->use_dma) in pch_spi_process_messages()
1262 pch_spi_release_dma(data); in pch_spi_process_messages()
1266 struct pch_spi_data *data) in pch_spi_free_resources() argument
1270 flush_work(&data->work); in pch_spi_free_resources()
1274 struct pch_spi_data *data) in pch_spi_get_resources() argument
1279 pch_spi_reset(data->master); in pch_spi_get_resources()
1283 dev_dbg(&board_dat->pdev->dev, "%s data->irq_reg_sts=true\n", __func__); in pch_spi_get_resources()
1289 struct pch_spi_data *data) in pch_free_dma_buf() argument
1293 dma = &data->dma; in pch_free_dma_buf()
1303 struct pch_spi_data *data) in pch_alloc_dma_buf() argument
1308 dma = &data->dma; in pch_alloc_dma_buf()
1330 struct pch_spi_data *data; in pch_spi_pd_probe() local
1342 data = spi_master_get_devdata(master); in pch_spi_pd_probe()
1343 data->master = master; in pch_spi_pd_probe()
1345 platform_set_drvdata(plat_dev, data); in pch_spi_pd_probe()
1348 data->io_base_addr = pci_resource_start(board_dat->pdev, 1) + in pch_spi_pd_probe()
1350 data->io_remap_addr = pci_iomap(board_dat->pdev, 1, 0); in pch_spi_pd_probe()
1351 if (!data->io_remap_addr) { in pch_spi_pd_probe()
1356 data->io_remap_addr += PCH_ADDRESS_SIZE * plat_dev->id; in pch_spi_pd_probe()
1359 plat_dev->id, data->io_remap_addr); in pch_spi_pd_probe()
1368 data->board_dat = board_dat; in pch_spi_pd_probe()
1369 data->plat_dev = plat_dev; in pch_spi_pd_probe()
1370 data->n_curnt_chip = 255; in pch_spi_pd_probe()
1371 data->status = STATUS_RUNNING; in pch_spi_pd_probe()
1372 data->ch = plat_dev->id; in pch_spi_pd_probe()
1373 data->use_dma = use_dma; in pch_spi_pd_probe()
1375 INIT_LIST_HEAD(&data->queue); in pch_spi_pd_probe()
1376 spin_lock_init(&data->lock); in pch_spi_pd_probe()
1377 INIT_WORK(&data->work, pch_spi_process_messages); in pch_spi_pd_probe()
1378 init_waitqueue_head(&data->wait); in pch_spi_pd_probe()
1380 ret = pch_spi_get_resources(board_dat, data); in pch_spi_pd_probe()
1387 IRQF_SHARED, KBUILD_MODNAME, data); in pch_spi_pd_probe()
1393 data->irq_reg_sts = true; in pch_spi_pd_probe()
1398 dev_info(&plat_dev->dev, "Use DMA for data transfers\n"); in pch_spi_pd_probe()
1399 ret = pch_alloc_dma_buf(board_dat, data); in pch_spi_pd_probe()
1414 pch_free_dma_buf(board_dat, data); in pch_spi_pd_probe()
1415 free_irq(board_dat->pdev->irq, data); in pch_spi_pd_probe()
1417 pch_spi_free_resources(board_dat, data); in pch_spi_pd_probe()
1419 pci_iounmap(board_dat->pdev, data->io_remap_addr); in pch_spi_pd_probe()
1429 struct pch_spi_data *data = platform_get_drvdata(plat_dev); in pch_spi_pd_remove() local
1437 pch_free_dma_buf(board_dat, data); in pch_spi_pd_remove()
1442 spin_lock_irqsave(&data->lock, flags); in pch_spi_pd_remove()
1443 data->status = STATUS_EXITING; in pch_spi_pd_remove()
1444 while ((list_empty(&data->queue) == 0) && --count) { in pch_spi_pd_remove()
1447 spin_unlock_irqrestore(&data->lock, flags); in pch_spi_pd_remove()
1449 spin_lock_irqsave(&data->lock, flags); in pch_spi_pd_remove()
1451 spin_unlock_irqrestore(&data->lock, flags); in pch_spi_pd_remove()
1453 pch_spi_free_resources(board_dat, data); in pch_spi_pd_remove()
1455 if (data->irq_reg_sts) { in pch_spi_pd_remove()
1457 pch_spi_setclr_reg(data->master, PCH_SPCR, 0, PCH_ALL); in pch_spi_pd_remove()
1458 data->irq_reg_sts = false; in pch_spi_pd_remove()
1459 free_irq(board_dat->pdev->irq, data); in pch_spi_pd_remove()
1462 pci_iounmap(board_dat->pdev, data->io_remap_addr); in pch_spi_pd_remove()
1463 spi_unregister_master(data->master); in pch_spi_pd_remove()
1473 struct pch_spi_data *data = platform_get_drvdata(pd_dev); in pch_spi_pd_suspend() local
1487 if (!(data->bcurrent_msg_processing)) in pch_spi_pd_suspend()
1493 if (data->irq_reg_sts) { in pch_spi_pd_suspend()
1495 pch_spi_setclr_reg(data->master, PCH_SPCR, 0, PCH_ALL); in pch_spi_pd_suspend()
1496 pch_spi_reset(data->master); in pch_spi_pd_suspend()
1497 free_irq(board_dat->pdev->irq, data); in pch_spi_pd_suspend()
1499 data->irq_reg_sts = false; in pch_spi_pd_suspend()
1510 struct pch_spi_data *data = platform_get_drvdata(pd_dev); in pch_spi_pd_resume() local
1519 if (!data->irq_reg_sts) { in pch_spi_pd_resume()
1522 IRQF_SHARED, KBUILD_MODNAME, data); in pch_spi_pd_resume()
1530 pch_spi_reset(data->master); in pch_spi_pd_resume()
1531 pch_spi_set_master_mode(data->master); in pch_spi_pd_resume()
1532 data->irq_reg_sts = true; in pch_spi_pd_resume()
1733 "to use DMA for data transfers pass 1 else 0; default 1");