Lines Matching full:data
26 #define PCH_SPDWR 0x0C /* SPI write data register */
27 #define PCH_SPDRR 0x10 /* SPI read data register */
135 * @bpw_len: Length of data to be transferred in bits per
138 * @tx_index: Transmit data count; for bookkeeping during
140 * @rx_index: Receive data count; for bookkeeping during
142 * @pkt_tx_buff: Buffer for data to be transmitted
143 * @pkt_rx_buff: Buffer for received data
152 * @board_dat: Reference to the SPI device data structure
158 * @save_total_len: Save length while data is being transferred
224 struct pch_spi_data *data = spi_master_get_devdata(master); in pch_spi_writereg() local
225 iowrite32(val, (data->io_remap_addr + idx)); in pch_spi_writereg()
235 struct pch_spi_data *data = spi_master_get_devdata(master); in pch_spi_readreg() local
236 return ioread32(data->io_remap_addr + idx); in pch_spi_readreg()
262 static void pch_spi_handler_sub(struct pch_spi_data *data, u32 reg_spsr_val, in pch_spi_handler_sub() argument
276 if (data->transfer_active) { in pch_spi_handler_sub()
277 rx_index = data->rx_index; in pch_spi_handler_sub()
278 tx_index = data->tx_index; in pch_spi_handler_sub()
279 bpw_len = data->bpw_len; in pch_spi_handler_sub()
280 pkt_rx_buffer = data->pkt_rx_buff; in pch_spi_handler_sub()
281 pkt_tx_buff = data->pkt_tx_buff; in pch_spi_handler_sub()
307 data->tx_index = tx_index; in pch_spi_handler_sub()
308 data->rx_index = rx_index; in pch_spi_handler_sub()
314 pch_spi_setclr_reg(data->master, PCH_SPCR, 0, in pch_spi_handler_sub()
319 data->transfer_complete = true; in pch_spi_handler_sub()
320 data->transfer_active = false; in pch_spi_handler_sub()
321 wake_up(&data->wait); in pch_spi_handler_sub()
323 dev_vdbg(&data->master->dev, in pch_spi_handler_sub()
342 struct pch_spi_data *data = dev_id; in pch_spi_handler() local
343 struct pch_spi_board_data *board_dat = data->board_dat; in pch_spi_handler()
351 io_remap_addr = data->io_remap_addr; in pch_spi_handler()
358 if (data->current_msg->complete) { in pch_spi_handler()
359 data->transfer_complete = true; in pch_spi_handler()
360 data->current_msg->status = -EIO; in pch_spi_handler()
361 data->current_msg->complete(data->current_msg->context); in pch_spi_handler()
362 data->bcurrent_msg_processing = false; in pch_spi_handler()
363 data->current_msg = NULL; in pch_spi_handler()
364 data->cur_trans = NULL; in pch_spi_handler()
368 if (data->use_dma) in pch_spi_handler()
373 pch_spi_handler_sub(data, reg_spsr_val, io_remap_addr); in pch_spi_handler()
459 struct pch_spi_data *data = spi_master_get_devdata(pspi->master); in pch_spi_transfer() local
463 spin_lock_irqsave(&data->lock, flags); in pch_spi_transfer()
484 spin_unlock_irqrestore(&data->lock, flags); in pch_spi_transfer()
487 if (data->status == STATUS_EXITING) { in pch_spi_transfer()
494 if (data->board_dat->suspend_sts) { in pch_spi_transfer()
505 spin_lock_irqsave(&data->lock, flags); in pch_spi_transfer()
507 list_add_tail(&pmsg->queue, &data->queue); in pch_spi_transfer()
508 spin_unlock_irqrestore(&data->lock, flags); in pch_spi_transfer()
512 schedule_work(&data->work); in pch_spi_transfer()
522 spin_unlock_irqrestore(&data->lock, flags); in pch_spi_transfer()
526 static inline void pch_spi_select_chip(struct pch_spi_data *data, in pch_spi_select_chip() argument
529 if (data->current_chip != NULL) { in pch_spi_select_chip()
530 if (pspi->chip_select != data->n_curnt_chip) { in pch_spi_select_chip()
532 data->current_chip = NULL; in pch_spi_select_chip()
536 data->current_chip = pspi; in pch_spi_select_chip()
538 data->n_curnt_chip = data->current_chip->chip_select; in pch_spi_select_chip()
544 static void pch_spi_set_tx(struct pch_spi_data *data, int *bpw) in pch_spi_set_tx() argument
554 if (data->cur_trans->speed_hz) { in pch_spi_set_tx()
555 dev_dbg(&data->master->dev, "%s:setting baud rate\n", __func__); in pch_spi_set_tx()
556 pch_spi_set_baud_rate(data->master, data->cur_trans->speed_hz); in pch_spi_set_tx()
560 if (data->cur_trans->bits_per_word && in pch_spi_set_tx()
561 (data->current_msg->spi->bits_per_word != data->cur_trans->bits_per_word)) { in pch_spi_set_tx()
562 dev_dbg(&data->master->dev, "%s:set bits per word\n", __func__); in pch_spi_set_tx()
563 pch_spi_set_bits_per_word(data->master, in pch_spi_set_tx()
564 data->cur_trans->bits_per_word); in pch_spi_set_tx()
565 *bpw = data->cur_trans->bits_per_word; in pch_spi_set_tx()
567 *bpw = data->current_msg->spi->bits_per_word; in pch_spi_set_tx()
571 data->tx_index = 0; in pch_spi_set_tx()
572 data->rx_index = 0; in pch_spi_set_tx()
574 data->bpw_len = data->cur_trans->len / (*bpw / 8); in pch_spi_set_tx()
577 size = data->cur_trans->len * sizeof(*data->pkt_tx_buff); in pch_spi_set_tx()
580 data->pkt_tx_buff = kzalloc(size, GFP_KERNEL); in pch_spi_set_tx()
581 if (data->pkt_tx_buff != NULL) { in pch_spi_set_tx()
582 data->pkt_rx_buff = kzalloc(size, GFP_KERNEL); in pch_spi_set_tx()
583 if (!data->pkt_rx_buff) { in pch_spi_set_tx()
584 kfree(data->pkt_tx_buff); in pch_spi_set_tx()
585 data->pkt_tx_buff = NULL; in pch_spi_set_tx()
589 if (!data->pkt_rx_buff) { in pch_spi_set_tx()
591 list_for_each_entry_safe(pmsg, tmp, data->queue.next, queue) { in pch_spi_set_tx()
603 /* copy Tx Data */ in pch_spi_set_tx()
604 if (data->cur_trans->tx_buf != NULL) { in pch_spi_set_tx()
606 tx_buf = data->cur_trans->tx_buf; in pch_spi_set_tx()
607 for (j = 0; j < data->bpw_len; j++) in pch_spi_set_tx()
608 data->pkt_tx_buff[j] = *tx_buf++; in pch_spi_set_tx()
610 tx_sbuf = data->cur_trans->tx_buf; in pch_spi_set_tx()
611 for (j = 0; j < data->bpw_len; j++) in pch_spi_set_tx()
612 data->pkt_tx_buff[j] = *tx_sbuf++; in pch_spi_set_tx()
617 n_writes = data->bpw_len; in pch_spi_set_tx()
621 dev_dbg(&data->master->dev, in pch_spi_set_tx()
624 pch_spi_writereg(data->master, PCH_SSNXCR, SSN_LOW); in pch_spi_set_tx()
627 pch_spi_writereg(data->master, PCH_SPDWR, data->pkt_tx_buff[j]); in pch_spi_set_tx()
630 data->tx_index = j; in pch_spi_set_tx()
633 data->transfer_complete = false; in pch_spi_set_tx()
634 data->transfer_active = true; in pch_spi_set_tx()
637 static void pch_spi_nomore_transfer(struct pch_spi_data *data) in pch_spi_nomore_transfer() argument
640 dev_dbg(&data->master->dev, "%s called\n", __func__); in pch_spi_nomore_transfer()
643 data->current_msg->status = 0; in pch_spi_nomore_transfer()
645 if (data->current_msg->complete) { in pch_spi_nomore_transfer()
646 dev_dbg(&data->master->dev, in pch_spi_nomore_transfer()
648 data->current_msg->complete(data->current_msg->context); in pch_spi_nomore_transfer()
652 data->bcurrent_msg_processing = false; in pch_spi_nomore_transfer()
654 dev_dbg(&data->master->dev, in pch_spi_nomore_transfer()
655 "%s:data->bcurrent_msg_processing = false\n", __func__); in pch_spi_nomore_transfer()
657 data->current_msg = NULL; in pch_spi_nomore_transfer()
658 data->cur_trans = NULL; in pch_spi_nomore_transfer()
662 if ((list_empty(&data->queue) == 0) && in pch_spi_nomore_transfer()
663 (!data->board_dat->suspend_sts) && in pch_spi_nomore_transfer()
664 (data->status != STATUS_EXITING)) { in pch_spi_nomore_transfer()
669 dev_dbg(&data->master->dev, "%s:Invoke queue_work\n", __func__); in pch_spi_nomore_transfer()
670 schedule_work(&data->work); in pch_spi_nomore_transfer()
671 } else if (data->board_dat->suspend_sts || in pch_spi_nomore_transfer()
672 data->status == STATUS_EXITING) { in pch_spi_nomore_transfer()
673 dev_dbg(&data->master->dev, in pch_spi_nomore_transfer()
676 list_for_each_entry_safe(pmsg, tmp, data->queue.next, queue) { in pch_spi_nomore_transfer()
688 static void pch_spi_set_ir(struct pch_spi_data *data) in pch_spi_set_ir() argument
691 if ((data->bpw_len) > PCH_MAX_FIFO_DEPTH) in pch_spi_set_ir()
693 pch_spi_setclr_reg(data->master, PCH_SPCR, in pch_spi_set_ir()
700 pch_spi_setclr_reg(data->master, PCH_SPCR, in pch_spi_set_ir()
708 dev_dbg(&data->master->dev, in pch_spi_set_ir()
711 wait_event_interruptible(data->wait, data->transfer_complete); in pch_spi_set_ir()
714 pch_spi_writereg(data->master, PCH_SPSR, in pch_spi_set_ir()
715 pch_spi_readreg(data->master, PCH_SPSR)); in pch_spi_set_ir()
717 pch_spi_setclr_reg(data->master, PCH_SPCR, 0, PCH_ALL | SPCR_SPE_BIT); in pch_spi_set_ir()
719 pch_spi_clear_fifo(data->master); in pch_spi_set_ir()
722 static void pch_spi_copy_rx_data(struct pch_spi_data *data, int bpw) in pch_spi_copy_rx_data() argument
728 /* copy Rx Data */ in pch_spi_copy_rx_data()
729 if (!data->cur_trans->rx_buf) in pch_spi_copy_rx_data()
733 rx_buf = data->cur_trans->rx_buf; in pch_spi_copy_rx_data()
734 for (j = 0; j < data->bpw_len; j++) in pch_spi_copy_rx_data()
735 *rx_buf++ = data->pkt_rx_buff[j] & 0xFF; in pch_spi_copy_rx_data()
737 rx_sbuf = data->cur_trans->rx_buf; in pch_spi_copy_rx_data()
738 for (j = 0; j < data->bpw_len; j++) in pch_spi_copy_rx_data()
739 *rx_sbuf++ = data->pkt_rx_buff[j]; in pch_spi_copy_rx_data()
743 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
751 /* copy Rx Data */ in pch_spi_copy_rx_data_for_dma()
752 if (!data->cur_trans->rx_buf) in pch_spi_copy_rx_data_for_dma()
756 rx_buf = data->cur_trans->rx_buf; in pch_spi_copy_rx_data_for_dma()
757 rx_dma_buf = data->dma.rx_buf_virt; in pch_spi_copy_rx_data_for_dma()
758 for (j = 0; j < data->bpw_len; j++) in pch_spi_copy_rx_data_for_dma()
760 data->cur_trans->rx_buf = rx_buf; in pch_spi_copy_rx_data_for_dma()
762 rx_sbuf = data->cur_trans->rx_buf; in pch_spi_copy_rx_data_for_dma()
763 rx_dma_sbuf = data->dma.rx_buf_virt; in pch_spi_copy_rx_data_for_dma()
764 for (j = 0; j < data->bpw_len; j++) in pch_spi_copy_rx_data_for_dma()
766 data->cur_trans->rx_buf = rx_sbuf; in pch_spi_copy_rx_data_for_dma()
770 static int pch_spi_start_transfer(struct pch_spi_data *data) in pch_spi_start_transfer() argument
776 dma = &data->dma; in pch_spi_start_transfer()
778 spin_lock_irqsave(&data->lock, flags); in pch_spi_start_transfer()
781 pch_spi_setclr_reg(data->master, PCH_SPCR, SPCR_SPE_BIT, PCH_ALL); in pch_spi_start_transfer()
783 spin_unlock_irqrestore(&data->lock, flags); in pch_spi_start_transfer()
787 dev_dbg(&data->master->dev, in pch_spi_start_transfer()
789 rtn = wait_event_interruptible_timeout(data->wait, in pch_spi_start_transfer()
790 data->transfer_complete, in pch_spi_start_transfer()
793 dev_err(&data->master->dev, in pch_spi_start_transfer()
796 dma_sync_sg_for_cpu(&data->master->dev, dma->sg_rx_p, dma->nent, in pch_spi_start_transfer()
799 dma_sync_sg_for_cpu(&data->master->dev, dma->sg_tx_p, dma->nent, in pch_spi_start_transfer()
801 memset(data->dma.tx_buf_virt, 0, PAGE_SIZE); in pch_spi_start_transfer()
808 spin_lock_irqsave(&data->lock, flags); in pch_spi_start_transfer()
811 pch_spi_setclr_reg(data->master, PCH_SPCR, 0, in pch_spi_start_transfer()
815 pch_spi_writereg(data->master, PCH_SPSR, in pch_spi_start_transfer()
816 pch_spi_readreg(data->master, PCH_SPSR)); in pch_spi_start_transfer()
818 pch_spi_clear_fifo(data->master); in pch_spi_start_transfer()
820 spin_unlock_irqrestore(&data->lock, flags); in pch_spi_start_transfer()
827 struct pch_spi_data *data = arg; in pch_dma_rx_complete() local
830 data->transfer_complete = true; in pch_dma_rx_complete()
831 wake_up_interruptible(&data->wait); in pch_dma_rx_complete()
847 static void pch_spi_request_dma(struct pch_spi_data *data, int bpw) in pch_spi_request_dma() argument
861 dma = &data->dma; in pch_spi_request_dma()
866 dma_dev = pci_get_slot(data->board_dat->pdev->bus, in pch_spi_request_dma()
867 PCI_DEVFN(PCI_SLOT(data->board_dat->pdev->devfn), 0)); in pch_spi_request_dma()
872 param->chan_id = data->ch * 2; /* Tx = 0, 2 */ in pch_spi_request_dma()
873 param->tx_reg = data->io_base_addr + PCH_SPDWR; in pch_spi_request_dma()
877 dev_err(&data->master->dev, in pch_spi_request_dma()
879 data->use_dma = 0; in pch_spi_request_dma()
887 param->chan_id = data->ch * 2 + 1; /* Rx = Tx + 1 */ in pch_spi_request_dma()
888 param->rx_reg = data->io_base_addr + PCH_SPDRR; in pch_spi_request_dma()
892 dev_err(&data->master->dev, in pch_spi_request_dma()
896 data->use_dma = 0; in pch_spi_request_dma()
902 static void pch_spi_release_dma(struct pch_spi_data *data) in pch_spi_release_dma() argument
906 dma = &data->dma; in pch_spi_release_dma()
917 static void pch_spi_handle_dma(struct pch_spi_data *data, int *bpw) in pch_spi_handle_dma() argument
934 dma = &data->dma; in pch_spi_handle_dma()
937 if (data->cur_trans->speed_hz) { in pch_spi_handle_dma()
938 dev_dbg(&data->master->dev, "%s:setting baud rate\n", __func__); in pch_spi_handle_dma()
939 spin_lock_irqsave(&data->lock, flags); in pch_spi_handle_dma()
940 pch_spi_set_baud_rate(data->master, data->cur_trans->speed_hz); in pch_spi_handle_dma()
941 spin_unlock_irqrestore(&data->lock, flags); in pch_spi_handle_dma()
945 if (data->cur_trans->bits_per_word && in pch_spi_handle_dma()
946 (data->current_msg->spi->bits_per_word != in pch_spi_handle_dma()
947 data->cur_trans->bits_per_word)) { in pch_spi_handle_dma()
948 dev_dbg(&data->master->dev, "%s:set bits per word\n", __func__); in pch_spi_handle_dma()
949 spin_lock_irqsave(&data->lock, flags); in pch_spi_handle_dma()
950 pch_spi_set_bits_per_word(data->master, in pch_spi_handle_dma()
951 data->cur_trans->bits_per_word); in pch_spi_handle_dma()
952 spin_unlock_irqrestore(&data->lock, flags); in pch_spi_handle_dma()
953 *bpw = data->cur_trans->bits_per_word; in pch_spi_handle_dma()
955 *bpw = data->current_msg->spi->bits_per_word; in pch_spi_handle_dma()
957 data->bpw_len = data->cur_trans->len / (*bpw / 8); in pch_spi_handle_dma()
959 if (data->bpw_len > PCH_BUF_SIZE) { in pch_spi_handle_dma()
960 data->bpw_len = PCH_BUF_SIZE; in pch_spi_handle_dma()
961 data->cur_trans->len -= PCH_BUF_SIZE; in pch_spi_handle_dma()
964 /* copy Tx Data */ in pch_spi_handle_dma()
965 if (data->cur_trans->tx_buf != NULL) { in pch_spi_handle_dma()
967 tx_buf = data->cur_trans->tx_buf; in pch_spi_handle_dma()
969 for (i = 0; i < data->bpw_len; i++) in pch_spi_handle_dma()
972 tx_sbuf = data->cur_trans->tx_buf; in pch_spi_handle_dma()
974 for (i = 0; i < data->bpw_len; i++) in pch_spi_handle_dma()
980 if (data->bpw_len > PCH_DMA_TRANS_SIZE) { in pch_spi_handle_dma()
981 if (data->bpw_len % PCH_DMA_TRANS_SIZE) { in pch_spi_handle_dma()
982 num = data->bpw_len / PCH_DMA_TRANS_SIZE + 1; in pch_spi_handle_dma()
983 rem = data->bpw_len % PCH_DMA_TRANS_SIZE; in pch_spi_handle_dma()
985 num = data->bpw_len / PCH_DMA_TRANS_SIZE; in pch_spi_handle_dma()
991 size = data->bpw_len; in pch_spi_handle_dma()
992 rem = data->bpw_len; in pch_spi_handle_dma()
994 dev_dbg(&data->master->dev, "%s num=%d size=%d rem=%d\n", in pch_spi_handle_dma()
996 spin_lock_irqsave(&data->lock, flags); in pch_spi_handle_dma()
999 pch_spi_setclr_reg(data->master, PCH_SPCR, in pch_spi_handle_dma()
1004 spin_unlock_irqrestore(&data->lock, flags); in pch_spi_handle_dma()
1041 dev_err(&data->master->dev, in pch_spi_handle_dma()
1045 dma_sync_sg_for_device(&data->master->dev, sg, num, DMA_FROM_DEVICE); in pch_spi_handle_dma()
1047 desc_rx->callback_param = data; in pch_spi_handle_dma()
1052 if (data->bpw_len > PCH_MAX_FIFO_DEPTH) { in pch_spi_handle_dma()
1054 if (data->bpw_len % PCH_DMA_TRANS_SIZE > 4) { in pch_spi_handle_dma()
1055 num = data->bpw_len / PCH_DMA_TRANS_SIZE + 1; in pch_spi_handle_dma()
1056 rem = data->bpw_len % PCH_DMA_TRANS_SIZE - head; in pch_spi_handle_dma()
1058 num = data->bpw_len / PCH_DMA_TRANS_SIZE; in pch_spi_handle_dma()
1059 rem = data->bpw_len % PCH_DMA_TRANS_SIZE + in pch_spi_handle_dma()
1065 size = data->bpw_len; in pch_spi_handle_dma()
1066 rem = data->bpw_len; in pch_spi_handle_dma()
1103 dev_err(&data->master->dev, in pch_spi_handle_dma()
1107 dma_sync_sg_for_device(&data->master->dev, sg, num, DMA_TO_DEVICE); in pch_spi_handle_dma()
1109 desc_tx->callback_param = data; in pch_spi_handle_dma()
1113 dev_dbg(&data->master->dev, "%s:Pulling down SSN low - writing 0x2 to SSNXCR\n", __func__); in pch_spi_handle_dma()
1115 spin_lock_irqsave(&data->lock, flags); in pch_spi_handle_dma()
1116 pch_spi_writereg(data->master, PCH_SSNXCR, SSN_LOW); in pch_spi_handle_dma()
1119 spin_unlock_irqrestore(&data->lock, flags); in pch_spi_handle_dma()
1122 data->transfer_complete = false; in pch_spi_handle_dma()
1128 struct pch_spi_data *data; in pch_spi_process_messages() local
1131 data = container_of(pwork, struct pch_spi_data, work); in pch_spi_process_messages()
1132 dev_dbg(&data->master->dev, "%s data initialized\n", __func__); in pch_spi_process_messages()
1134 spin_lock(&data->lock); in pch_spi_process_messages()
1136 if (data->board_dat->suspend_sts || (data->status == STATUS_EXITING)) { in pch_spi_process_messages()
1137 dev_dbg(&data->master->dev, in pch_spi_process_messages()
1139 list_for_each_entry_safe(pmsg, tmp, data->queue.next, queue) { in pch_spi_process_messages()
1143 spin_unlock(&data->lock); in pch_spi_process_messages()
1145 spin_lock(&data->lock); in pch_spi_process_messages()
1152 spin_unlock(&data->lock); in pch_spi_process_messages()
1156 data->bcurrent_msg_processing = true; in pch_spi_process_messages()
1157 dev_dbg(&data->master->dev, in pch_spi_process_messages()
1158 "%s Set data->bcurrent_msg_processing= true\n", __func__); in pch_spi_process_messages()
1161 data->current_msg = list_entry(data->queue.next, struct spi_message, in pch_spi_process_messages()
1164 list_del_init(&data->current_msg->queue); in pch_spi_process_messages()
1166 data->current_msg->status = 0; in pch_spi_process_messages()
1168 pch_spi_select_chip(data, data->current_msg->spi); in pch_spi_process_messages()
1170 spin_unlock(&data->lock); in pch_spi_process_messages()
1172 if (data->use_dma) in pch_spi_process_messages()
1173 pch_spi_request_dma(data, in pch_spi_process_messages()
1174 data->current_msg->spi->bits_per_word); in pch_spi_process_messages()
1175 pch_spi_writereg(data->master, PCH_SSNXCR, SSN_NO_CONTROL); in pch_spi_process_messages()
1181 spin_lock(&data->lock); in pch_spi_process_messages()
1182 if (data->cur_trans == NULL) { in pch_spi_process_messages()
1183 data->cur_trans = in pch_spi_process_messages()
1184 list_entry(data->current_msg->transfers.next, in pch_spi_process_messages()
1186 dev_dbg(&data->master->dev, in pch_spi_process_messages()
1190 data->cur_trans = in pch_spi_process_messages()
1191 list_entry(data->cur_trans->transfer_list.next, in pch_spi_process_messages()
1193 dev_dbg(&data->master->dev, in pch_spi_process_messages()
1197 spin_unlock(&data->lock); in pch_spi_process_messages()
1199 if (!data->cur_trans->len) in pch_spi_process_messages()
1201 cnt = (data->cur_trans->len - 1) / PCH_BUF_SIZE + 1; in pch_spi_process_messages()
1202 data->save_total_len = data->cur_trans->len; in pch_spi_process_messages()
1203 if (data->use_dma) { in pch_spi_process_messages()
1205 char *save_rx_buf = data->cur_trans->rx_buf; in pch_spi_process_messages()
1208 pch_spi_handle_dma(data, &bpw); in pch_spi_process_messages()
1209 if (!pch_spi_start_transfer(data)) { in pch_spi_process_messages()
1210 data->transfer_complete = true; in pch_spi_process_messages()
1211 data->current_msg->status = -EIO; in pch_spi_process_messages()
1212 data->current_msg->complete in pch_spi_process_messages()
1213 (data->current_msg->context); in pch_spi_process_messages()
1214 data->bcurrent_msg_processing = false; in pch_spi_process_messages()
1215 data->current_msg = NULL; in pch_spi_process_messages()
1216 data->cur_trans = NULL; in pch_spi_process_messages()
1219 pch_spi_copy_rx_data_for_dma(data, bpw); in pch_spi_process_messages()
1221 data->cur_trans->rx_buf = save_rx_buf; in pch_spi_process_messages()
1223 pch_spi_set_tx(data, &bpw); in pch_spi_process_messages()
1224 pch_spi_set_ir(data); in pch_spi_process_messages()
1225 pch_spi_copy_rx_data(data, bpw); in pch_spi_process_messages()
1226 kfree(data->pkt_rx_buff); in pch_spi_process_messages()
1227 data->pkt_rx_buff = NULL; in pch_spi_process_messages()
1228 kfree(data->pkt_tx_buff); in pch_spi_process_messages()
1229 data->pkt_tx_buff = NULL; in pch_spi_process_messages()
1232 data->cur_trans->len = data->save_total_len; in pch_spi_process_messages()
1233 data->current_msg->actual_length += data->cur_trans->len; in pch_spi_process_messages()
1235 dev_dbg(&data->master->dev, in pch_spi_process_messages()
1236 "%s:data->current_msg->actual_length=%d\n", in pch_spi_process_messages()
1237 __func__, data->current_msg->actual_length); in pch_spi_process_messages()
1239 spi_transfer_delay_exec(data->cur_trans); in pch_spi_process_messages()
1241 spin_lock(&data->lock); in pch_spi_process_messages()
1244 if ((data->cur_trans->transfer_list.next) == in pch_spi_process_messages()
1245 &(data->current_msg->transfers)) { in pch_spi_process_messages()
1246 pch_spi_nomore_transfer(data); in pch_spi_process_messages()
1249 spin_unlock(&data->lock); in pch_spi_process_messages()
1251 } while (data->cur_trans != NULL); in pch_spi_process_messages()
1254 pch_spi_writereg(data->master, PCH_SSNXCR, SSN_HIGH); in pch_spi_process_messages()
1255 if (data->use_dma) in pch_spi_process_messages()
1256 pch_spi_release_dma(data); in pch_spi_process_messages()
1260 struct pch_spi_data *data) in pch_spi_free_resources() argument
1264 flush_work(&data->work); in pch_spi_free_resources()
1268 struct pch_spi_data *data) in pch_spi_get_resources() argument
1273 pch_spi_reset(data->master); in pch_spi_get_resources()
1277 dev_dbg(&board_dat->pdev->dev, "%s data->irq_reg_sts=true\n", __func__); in pch_spi_get_resources()
1283 struct pch_spi_data *data) in pch_free_dma_buf() argument
1287 dma = &data->dma; in pch_free_dma_buf()
1297 struct pch_spi_data *data) in pch_alloc_dma_buf() argument
1302 dma = &data->dma; in pch_alloc_dma_buf()
1324 struct pch_spi_data *data; in pch_spi_pd_probe() local
1336 data = spi_master_get_devdata(master); in pch_spi_pd_probe()
1337 data->master = master; in pch_spi_pd_probe()
1339 platform_set_drvdata(plat_dev, data); in pch_spi_pd_probe()
1342 data->io_base_addr = pci_resource_start(board_dat->pdev, 1) + in pch_spi_pd_probe()
1344 data->io_remap_addr = pci_iomap(board_dat->pdev, 1, 0); in pch_spi_pd_probe()
1345 if (!data->io_remap_addr) { in pch_spi_pd_probe()
1350 data->io_remap_addr += PCH_ADDRESS_SIZE * plat_dev->id; in pch_spi_pd_probe()
1353 plat_dev->id, data->io_remap_addr); in pch_spi_pd_probe()
1362 data->board_dat = board_dat; in pch_spi_pd_probe()
1363 data->plat_dev = plat_dev; in pch_spi_pd_probe()
1364 data->n_curnt_chip = 255; in pch_spi_pd_probe()
1365 data->status = STATUS_RUNNING; in pch_spi_pd_probe()
1366 data->ch = plat_dev->id; in pch_spi_pd_probe()
1367 data->use_dma = use_dma; in pch_spi_pd_probe()
1369 INIT_LIST_HEAD(&data->queue); in pch_spi_pd_probe()
1370 spin_lock_init(&data->lock); in pch_spi_pd_probe()
1371 INIT_WORK(&data->work, pch_spi_process_messages); in pch_spi_pd_probe()
1372 init_waitqueue_head(&data->wait); in pch_spi_pd_probe()
1374 ret = pch_spi_get_resources(board_dat, data); in pch_spi_pd_probe()
1381 IRQF_SHARED, KBUILD_MODNAME, data); in pch_spi_pd_probe()
1387 data->irq_reg_sts = true; in pch_spi_pd_probe()
1392 dev_info(&plat_dev->dev, "Use DMA for data transfers\n"); in pch_spi_pd_probe()
1393 ret = pch_alloc_dma_buf(board_dat, data); in pch_spi_pd_probe()
1408 pch_free_dma_buf(board_dat, data); in pch_spi_pd_probe()
1409 free_irq(board_dat->pdev->irq, data); in pch_spi_pd_probe()
1411 pch_spi_free_resources(board_dat, data); in pch_spi_pd_probe()
1413 pci_iounmap(board_dat->pdev, data->io_remap_addr); in pch_spi_pd_probe()
1423 struct pch_spi_data *data = platform_get_drvdata(plat_dev); in pch_spi_pd_remove() local
1431 pch_free_dma_buf(board_dat, data); in pch_spi_pd_remove()
1436 spin_lock_irqsave(&data->lock, flags); in pch_spi_pd_remove()
1437 data->status = STATUS_EXITING; in pch_spi_pd_remove()
1438 while ((list_empty(&data->queue) == 0) && --count) { in pch_spi_pd_remove()
1441 spin_unlock_irqrestore(&data->lock, flags); in pch_spi_pd_remove()
1443 spin_lock_irqsave(&data->lock, flags); in pch_spi_pd_remove()
1445 spin_unlock_irqrestore(&data->lock, flags); in pch_spi_pd_remove()
1447 pch_spi_free_resources(board_dat, data); in pch_spi_pd_remove()
1449 if (data->irq_reg_sts) { in pch_spi_pd_remove()
1451 pch_spi_setclr_reg(data->master, PCH_SPCR, 0, PCH_ALL); in pch_spi_pd_remove()
1452 data->irq_reg_sts = false; in pch_spi_pd_remove()
1453 free_irq(board_dat->pdev->irq, data); in pch_spi_pd_remove()
1456 pci_iounmap(board_dat->pdev, data->io_remap_addr); in pch_spi_pd_remove()
1457 spi_unregister_master(data->master); in pch_spi_pd_remove()
1467 struct pch_spi_data *data = platform_get_drvdata(pd_dev); in pch_spi_pd_suspend() local
1481 if (!(data->bcurrent_msg_processing)) in pch_spi_pd_suspend()
1487 if (data->irq_reg_sts) { in pch_spi_pd_suspend()
1489 pch_spi_setclr_reg(data->master, PCH_SPCR, 0, PCH_ALL); in pch_spi_pd_suspend()
1490 pch_spi_reset(data->master); in pch_spi_pd_suspend()
1491 free_irq(board_dat->pdev->irq, data); in pch_spi_pd_suspend()
1493 data->irq_reg_sts = false; in pch_spi_pd_suspend()
1504 struct pch_spi_data *data = platform_get_drvdata(pd_dev); in pch_spi_pd_resume() local
1513 if (!data->irq_reg_sts) { in pch_spi_pd_resume()
1516 IRQF_SHARED, KBUILD_MODNAME, data); in pch_spi_pd_resume()
1524 pch_spi_reset(data->master); in pch_spi_pd_resume()
1525 pch_spi_set_master_mode(data->master); in pch_spi_pd_resume()
1526 data->irq_reg_sts = true; in pch_spi_pd_resume()
1700 "to use DMA for data transfers pass 1 else 0; default 1");