Lines Matching full:data
26 #define PCH_SPDWR 0x0C /* SPI write data register */
27 #define PCH_SPDRR 0x10 /* SPI read data register */
134 * @bpw_len: Length of data to be transferred in bits per
137 * @tx_index: Transmit data count; for bookkeeping during
139 * @rx_index: Receive data count; for bookkeeping during
141 * @tx_buff: Buffer for data to be transmitted
142 * @rx_index: Buffer for Received data
151 * @board_dat: Reference to the SPI device data structure
220 struct pch_spi_data *data = spi_master_get_devdata(master); in pch_spi_writereg() local
221 iowrite32(val, (data->io_remap_addr + idx)); in pch_spi_writereg()
231 struct pch_spi_data *data = spi_master_get_devdata(master); in pch_spi_readreg() local
232 return ioread32(data->io_remap_addr + idx); in pch_spi_readreg()
258 static void pch_spi_handler_sub(struct pch_spi_data *data, u32 reg_spsr_val, in pch_spi_handler_sub() argument
272 if (data->transfer_active) { in pch_spi_handler_sub()
273 rx_index = data->rx_index; in pch_spi_handler_sub()
274 tx_index = data->tx_index; in pch_spi_handler_sub()
275 bpw_len = data->bpw_len; in pch_spi_handler_sub()
276 pkt_rx_buffer = data->pkt_rx_buff; in pch_spi_handler_sub()
277 pkt_tx_buff = data->pkt_tx_buff; in pch_spi_handler_sub()
303 data->tx_index = tx_index; in pch_spi_handler_sub()
304 data->rx_index = rx_index; in pch_spi_handler_sub()
310 pch_spi_setclr_reg(data->master, PCH_SPCR, 0, in pch_spi_handler_sub()
315 data->transfer_complete = true; in pch_spi_handler_sub()
316 data->transfer_active = false; in pch_spi_handler_sub()
317 wake_up(&data->wait); in pch_spi_handler_sub()
319 dev_vdbg(&data->master->dev, in pch_spi_handler_sub()
338 struct pch_spi_data *data = dev_id; in pch_spi_handler() local
339 struct pch_spi_board_data *board_dat = data->board_dat; in pch_spi_handler()
347 io_remap_addr = data->io_remap_addr; in pch_spi_handler()
354 if (data->current_msg->complete) { in pch_spi_handler()
355 data->transfer_complete = true; in pch_spi_handler()
356 data->current_msg->status = -EIO; in pch_spi_handler()
357 data->current_msg->complete(data->current_msg->context); in pch_spi_handler()
358 data->bcurrent_msg_processing = false; in pch_spi_handler()
359 data->current_msg = NULL; in pch_spi_handler()
360 data->cur_trans = NULL; in pch_spi_handler()
364 if (data->use_dma) in pch_spi_handler()
369 pch_spi_handler_sub(data, reg_spsr_val, io_remap_addr); in pch_spi_handler()
455 struct pch_spi_data *data = spi_master_get_devdata(pspi->master); in pch_spi_transfer() local
459 spin_lock_irqsave(&data->lock, flags); in pch_spi_transfer()
480 spin_unlock_irqrestore(&data->lock, flags); in pch_spi_transfer()
483 if (data->status == STATUS_EXITING) { in pch_spi_transfer()
490 if (data->board_dat->suspend_sts) { in pch_spi_transfer()
501 spin_lock_irqsave(&data->lock, flags); in pch_spi_transfer()
503 list_add_tail(&pmsg->queue, &data->queue); in pch_spi_transfer()
504 spin_unlock_irqrestore(&data->lock, flags); in pch_spi_transfer()
508 schedule_work(&data->work); in pch_spi_transfer()
518 spin_unlock_irqrestore(&data->lock, flags); in pch_spi_transfer()
522 static inline void pch_spi_select_chip(struct pch_spi_data *data, in pch_spi_select_chip() argument
525 if (data->current_chip != NULL) { in pch_spi_select_chip()
526 if (pspi->chip_select != data->n_curnt_chip) { in pch_spi_select_chip()
528 data->current_chip = NULL; in pch_spi_select_chip()
532 data->current_chip = pspi; in pch_spi_select_chip()
534 data->n_curnt_chip = data->current_chip->chip_select; in pch_spi_select_chip()
540 static void pch_spi_set_tx(struct pch_spi_data *data, int *bpw) in pch_spi_set_tx() argument
550 if (data->cur_trans->speed_hz) { in pch_spi_set_tx()
551 dev_dbg(&data->master->dev, "%s:setting baud rate\n", __func__); in pch_spi_set_tx()
552 pch_spi_set_baud_rate(data->master, data->cur_trans->speed_hz); in pch_spi_set_tx()
556 if (data->cur_trans->bits_per_word && in pch_spi_set_tx()
557 (data->current_msg->spi->bits_per_word != data->cur_trans->bits_per_word)) { in pch_spi_set_tx()
558 dev_dbg(&data->master->dev, "%s:set bits per word\n", __func__); in pch_spi_set_tx()
559 pch_spi_set_bits_per_word(data->master, in pch_spi_set_tx()
560 data->cur_trans->bits_per_word); in pch_spi_set_tx()
561 *bpw = data->cur_trans->bits_per_word; in pch_spi_set_tx()
563 *bpw = data->current_msg->spi->bits_per_word; in pch_spi_set_tx()
567 data->tx_index = 0; in pch_spi_set_tx()
568 data->rx_index = 0; in pch_spi_set_tx()
570 data->bpw_len = data->cur_trans->len / (*bpw / 8); in pch_spi_set_tx()
573 size = data->cur_trans->len * sizeof(*data->pkt_tx_buff); in pch_spi_set_tx()
576 data->pkt_tx_buff = kzalloc(size, GFP_KERNEL); in pch_spi_set_tx()
577 if (data->pkt_tx_buff != NULL) { in pch_spi_set_tx()
578 data->pkt_rx_buff = kzalloc(size, GFP_KERNEL); in pch_spi_set_tx()
579 if (!data->pkt_rx_buff) in pch_spi_set_tx()
580 kfree(data->pkt_tx_buff); in pch_spi_set_tx()
583 if (!data->pkt_rx_buff) { in pch_spi_set_tx()
585 list_for_each_entry_safe(pmsg, tmp, data->queue.next, queue) { in pch_spi_set_tx()
597 /* copy Tx Data */ in pch_spi_set_tx()
598 if (data->cur_trans->tx_buf != NULL) { in pch_spi_set_tx()
600 tx_buf = data->cur_trans->tx_buf; in pch_spi_set_tx()
601 for (j = 0; j < data->bpw_len; j++) in pch_spi_set_tx()
602 data->pkt_tx_buff[j] = *tx_buf++; in pch_spi_set_tx()
604 tx_sbuf = data->cur_trans->tx_buf; in pch_spi_set_tx()
605 for (j = 0; j < data->bpw_len; j++) in pch_spi_set_tx()
606 data->pkt_tx_buff[j] = *tx_sbuf++; in pch_spi_set_tx()
611 n_writes = data->bpw_len; in pch_spi_set_tx()
615 dev_dbg(&data->master->dev, in pch_spi_set_tx()
618 pch_spi_writereg(data->master, PCH_SSNXCR, SSN_LOW); in pch_spi_set_tx()
621 pch_spi_writereg(data->master, PCH_SPDWR, data->pkt_tx_buff[j]); in pch_spi_set_tx()
624 data->tx_index = j; in pch_spi_set_tx()
627 data->transfer_complete = false; in pch_spi_set_tx()
628 data->transfer_active = true; in pch_spi_set_tx()
631 static void pch_spi_nomore_transfer(struct pch_spi_data *data) in pch_spi_nomore_transfer() argument
634 dev_dbg(&data->master->dev, "%s called\n", __func__); in pch_spi_nomore_transfer()
637 data->current_msg->status = 0; in pch_spi_nomore_transfer()
639 if (data->current_msg->complete) { in pch_spi_nomore_transfer()
640 dev_dbg(&data->master->dev, in pch_spi_nomore_transfer()
642 data->current_msg->complete(data->current_msg->context); in pch_spi_nomore_transfer()
646 data->bcurrent_msg_processing = false; in pch_spi_nomore_transfer()
648 dev_dbg(&data->master->dev, in pch_spi_nomore_transfer()
649 "%s:data->bcurrent_msg_processing = false\n", __func__); in pch_spi_nomore_transfer()
651 data->current_msg = NULL; in pch_spi_nomore_transfer()
652 data->cur_trans = NULL; in pch_spi_nomore_transfer()
656 if ((list_empty(&data->queue) == 0) && in pch_spi_nomore_transfer()
657 (!data->board_dat->suspend_sts) && in pch_spi_nomore_transfer()
658 (data->status != STATUS_EXITING)) { in pch_spi_nomore_transfer()
663 dev_dbg(&data->master->dev, "%s:Invoke queue_work\n", __func__); in pch_spi_nomore_transfer()
664 schedule_work(&data->work); in pch_spi_nomore_transfer()
665 } else if (data->board_dat->suspend_sts || in pch_spi_nomore_transfer()
666 data->status == STATUS_EXITING) { in pch_spi_nomore_transfer()
667 dev_dbg(&data->master->dev, in pch_spi_nomore_transfer()
670 list_for_each_entry_safe(pmsg, tmp, data->queue.next, queue) { in pch_spi_nomore_transfer()
682 static void pch_spi_set_ir(struct pch_spi_data *data) in pch_spi_set_ir() argument
685 if ((data->bpw_len) > PCH_MAX_FIFO_DEPTH) in pch_spi_set_ir()
687 pch_spi_setclr_reg(data->master, PCH_SPCR, in pch_spi_set_ir()
694 pch_spi_setclr_reg(data->master, PCH_SPCR, in pch_spi_set_ir()
702 dev_dbg(&data->master->dev, in pch_spi_set_ir()
705 wait_event_interruptible(data->wait, data->transfer_complete); in pch_spi_set_ir()
708 pch_spi_writereg(data->master, PCH_SPSR, in pch_spi_set_ir()
709 pch_spi_readreg(data->master, PCH_SPSR)); in pch_spi_set_ir()
711 pch_spi_setclr_reg(data->master, PCH_SPCR, 0, PCH_ALL | SPCR_SPE_BIT); in pch_spi_set_ir()
713 pch_spi_clear_fifo(data->master); in pch_spi_set_ir()
716 static void pch_spi_copy_rx_data(struct pch_spi_data *data, int bpw) in pch_spi_copy_rx_data() argument
722 /* copy Rx Data */ in pch_spi_copy_rx_data()
723 if (!data->cur_trans->rx_buf) in pch_spi_copy_rx_data()
727 rx_buf = data->cur_trans->rx_buf; in pch_spi_copy_rx_data()
728 for (j = 0; j < data->bpw_len; j++) in pch_spi_copy_rx_data()
729 *rx_buf++ = data->pkt_rx_buff[j] & 0xFF; in pch_spi_copy_rx_data()
731 rx_sbuf = data->cur_trans->rx_buf; in pch_spi_copy_rx_data()
732 for (j = 0; j < data->bpw_len; j++) in pch_spi_copy_rx_data()
733 *rx_sbuf++ = data->pkt_rx_buff[j]; in pch_spi_copy_rx_data()
737 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
745 /* copy Rx Data */ in pch_spi_copy_rx_data_for_dma()
746 if (!data->cur_trans->rx_buf) in pch_spi_copy_rx_data_for_dma()
750 rx_buf = data->cur_trans->rx_buf; in pch_spi_copy_rx_data_for_dma()
751 rx_dma_buf = data->dma.rx_buf_virt; in pch_spi_copy_rx_data_for_dma()
752 for (j = 0; j < data->bpw_len; j++) in pch_spi_copy_rx_data_for_dma()
754 data->cur_trans->rx_buf = rx_buf; in pch_spi_copy_rx_data_for_dma()
756 rx_sbuf = data->cur_trans->rx_buf; in pch_spi_copy_rx_data_for_dma()
757 rx_dma_sbuf = 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_sbuf; in pch_spi_copy_rx_data_for_dma()
764 static int pch_spi_start_transfer(struct pch_spi_data *data) in pch_spi_start_transfer() argument
770 dma = &data->dma; in pch_spi_start_transfer()
772 spin_lock_irqsave(&data->lock, flags); in pch_spi_start_transfer()
775 pch_spi_setclr_reg(data->master, PCH_SPCR, SPCR_SPE_BIT, PCH_ALL); in pch_spi_start_transfer()
777 spin_unlock_irqrestore(&data->lock, flags); in pch_spi_start_transfer()
781 dev_dbg(&data->master->dev, in pch_spi_start_transfer()
783 rtn = wait_event_interruptible_timeout(data->wait, in pch_spi_start_transfer()
784 data->transfer_complete, in pch_spi_start_transfer()
787 dev_err(&data->master->dev, in pch_spi_start_transfer()
790 dma_sync_sg_for_cpu(&data->master->dev, dma->sg_rx_p, dma->nent, in pch_spi_start_transfer()
793 dma_sync_sg_for_cpu(&data->master->dev, dma->sg_tx_p, dma->nent, in pch_spi_start_transfer()
795 memset(data->dma.tx_buf_virt, 0, PAGE_SIZE); in pch_spi_start_transfer()
802 spin_lock_irqsave(&data->lock, flags); in pch_spi_start_transfer()
805 pch_spi_setclr_reg(data->master, PCH_SPCR, 0, in pch_spi_start_transfer()
809 pch_spi_writereg(data->master, PCH_SPSR, in pch_spi_start_transfer()
810 pch_spi_readreg(data->master, PCH_SPSR)); in pch_spi_start_transfer()
812 pch_spi_clear_fifo(data->master); in pch_spi_start_transfer()
814 spin_unlock_irqrestore(&data->lock, flags); in pch_spi_start_transfer()
821 struct pch_spi_data *data = arg; in pch_dma_rx_complete() local
824 data->transfer_complete = true; in pch_dma_rx_complete()
825 wake_up_interruptible(&data->wait); in pch_dma_rx_complete()
841 static void pch_spi_request_dma(struct pch_spi_data *data, int bpw) in pch_spi_request_dma() argument
855 dma = &data->dma; in pch_spi_request_dma()
860 dma_dev = pci_get_slot(data->board_dat->pdev->bus, in pch_spi_request_dma()
861 PCI_DEVFN(PCI_SLOT(data->board_dat->pdev->devfn), 0)); in pch_spi_request_dma()
866 param->chan_id = data->ch * 2; /* Tx = 0, 2 */; in pch_spi_request_dma()
867 param->tx_reg = data->io_base_addr + PCH_SPDWR; in pch_spi_request_dma()
871 dev_err(&data->master->dev, in pch_spi_request_dma()
873 data->use_dma = 0; in pch_spi_request_dma()
881 param->chan_id = data->ch * 2 + 1; /* Rx = Tx + 1 */; in pch_spi_request_dma()
882 param->rx_reg = data->io_base_addr + PCH_SPDRR; in pch_spi_request_dma()
886 dev_err(&data->master->dev, in pch_spi_request_dma()
890 data->use_dma = 0; in pch_spi_request_dma()
896 static void pch_spi_release_dma(struct pch_spi_data *data) in pch_spi_release_dma() argument
900 dma = &data->dma; in pch_spi_release_dma()
911 static void pch_spi_handle_dma(struct pch_spi_data *data, int *bpw) in pch_spi_handle_dma() argument
928 dma = &data->dma; in pch_spi_handle_dma()
931 if (data->cur_trans->speed_hz) { in pch_spi_handle_dma()
932 dev_dbg(&data->master->dev, "%s:setting baud rate\n", __func__); in pch_spi_handle_dma()
933 spin_lock_irqsave(&data->lock, flags); in pch_spi_handle_dma()
934 pch_spi_set_baud_rate(data->master, data->cur_trans->speed_hz); in pch_spi_handle_dma()
935 spin_unlock_irqrestore(&data->lock, flags); in pch_spi_handle_dma()
939 if (data->cur_trans->bits_per_word && in pch_spi_handle_dma()
940 (data->current_msg->spi->bits_per_word != in pch_spi_handle_dma()
941 data->cur_trans->bits_per_word)) { in pch_spi_handle_dma()
942 dev_dbg(&data->master->dev, "%s:set bits per word\n", __func__); in pch_spi_handle_dma()
943 spin_lock_irqsave(&data->lock, flags); in pch_spi_handle_dma()
944 pch_spi_set_bits_per_word(data->master, in pch_spi_handle_dma()
945 data->cur_trans->bits_per_word); in pch_spi_handle_dma()
946 spin_unlock_irqrestore(&data->lock, flags); in pch_spi_handle_dma()
947 *bpw = data->cur_trans->bits_per_word; in pch_spi_handle_dma()
949 *bpw = data->current_msg->spi->bits_per_word; in pch_spi_handle_dma()
951 data->bpw_len = data->cur_trans->len / (*bpw / 8); in pch_spi_handle_dma()
953 if (data->bpw_len > PCH_BUF_SIZE) { in pch_spi_handle_dma()
954 data->bpw_len = PCH_BUF_SIZE; in pch_spi_handle_dma()
955 data->cur_trans->len -= PCH_BUF_SIZE; in pch_spi_handle_dma()
958 /* copy Tx Data */ in pch_spi_handle_dma()
959 if (data->cur_trans->tx_buf != NULL) { in pch_spi_handle_dma()
961 tx_buf = data->cur_trans->tx_buf; in pch_spi_handle_dma()
963 for (i = 0; i < data->bpw_len; i++) in pch_spi_handle_dma()
966 tx_sbuf = data->cur_trans->tx_buf; in pch_spi_handle_dma()
968 for (i = 0; i < data->bpw_len; i++) in pch_spi_handle_dma()
974 if (data->bpw_len > PCH_DMA_TRANS_SIZE) { in pch_spi_handle_dma()
975 if (data->bpw_len % PCH_DMA_TRANS_SIZE) { in pch_spi_handle_dma()
976 num = data->bpw_len / PCH_DMA_TRANS_SIZE + 1; in pch_spi_handle_dma()
977 rem = data->bpw_len % PCH_DMA_TRANS_SIZE; in pch_spi_handle_dma()
979 num = data->bpw_len / PCH_DMA_TRANS_SIZE; in pch_spi_handle_dma()
985 size = data->bpw_len; in pch_spi_handle_dma()
986 rem = data->bpw_len; in pch_spi_handle_dma()
988 dev_dbg(&data->master->dev, "%s num=%d size=%d rem=%d\n", in pch_spi_handle_dma()
990 spin_lock_irqsave(&data->lock, flags); in pch_spi_handle_dma()
993 pch_spi_setclr_reg(data->master, PCH_SPCR, in pch_spi_handle_dma()
998 spin_unlock_irqrestore(&data->lock, flags); in pch_spi_handle_dma()
1035 dev_err(&data->master->dev, in pch_spi_handle_dma()
1039 dma_sync_sg_for_device(&data->master->dev, sg, num, DMA_FROM_DEVICE); in pch_spi_handle_dma()
1041 desc_rx->callback_param = data; in pch_spi_handle_dma()
1046 if (data->bpw_len > PCH_MAX_FIFO_DEPTH) { in pch_spi_handle_dma()
1048 if (data->bpw_len % PCH_DMA_TRANS_SIZE > 4) { in pch_spi_handle_dma()
1049 num = data->bpw_len / PCH_DMA_TRANS_SIZE + 1; in pch_spi_handle_dma()
1050 rem = data->bpw_len % PCH_DMA_TRANS_SIZE - head; in pch_spi_handle_dma()
1052 num = data->bpw_len / PCH_DMA_TRANS_SIZE; in pch_spi_handle_dma()
1053 rem = data->bpw_len % PCH_DMA_TRANS_SIZE + in pch_spi_handle_dma()
1059 size = data->bpw_len; in pch_spi_handle_dma()
1060 rem = data->bpw_len; in pch_spi_handle_dma()
1097 dev_err(&data->master->dev, in pch_spi_handle_dma()
1101 dma_sync_sg_for_device(&data->master->dev, sg, num, DMA_TO_DEVICE); in pch_spi_handle_dma()
1103 desc_tx->callback_param = data; in pch_spi_handle_dma()
1107 dev_dbg(&data->master->dev, "%s:Pulling down SSN low - writing 0x2 to SSNXCR\n", __func__); in pch_spi_handle_dma()
1109 spin_lock_irqsave(&data->lock, flags); in pch_spi_handle_dma()
1110 pch_spi_writereg(data->master, PCH_SSNXCR, SSN_LOW); in pch_spi_handle_dma()
1113 spin_unlock_irqrestore(&data->lock, flags); in pch_spi_handle_dma()
1116 data->transfer_complete = false; in pch_spi_handle_dma()
1122 struct pch_spi_data *data; in pch_spi_process_messages() local
1125 data = container_of(pwork, struct pch_spi_data, work); in pch_spi_process_messages()
1126 dev_dbg(&data->master->dev, "%s data initialized\n", __func__); in pch_spi_process_messages()
1128 spin_lock(&data->lock); in pch_spi_process_messages()
1130 if (data->board_dat->suspend_sts || (data->status == STATUS_EXITING)) { in pch_spi_process_messages()
1131 dev_dbg(&data->master->dev, in pch_spi_process_messages()
1133 list_for_each_entry_safe(pmsg, tmp, data->queue.next, queue) { in pch_spi_process_messages()
1137 spin_unlock(&data->lock); in pch_spi_process_messages()
1139 spin_lock(&data->lock); in pch_spi_process_messages()
1146 spin_unlock(&data->lock); in pch_spi_process_messages()
1150 data->bcurrent_msg_processing = true; in pch_spi_process_messages()
1151 dev_dbg(&data->master->dev, in pch_spi_process_messages()
1152 "%s Set data->bcurrent_msg_processing= true\n", __func__); in pch_spi_process_messages()
1155 data->current_msg = list_entry(data->queue.next, struct spi_message, in pch_spi_process_messages()
1158 list_del_init(&data->current_msg->queue); in pch_spi_process_messages()
1160 data->current_msg->status = 0; in pch_spi_process_messages()
1162 pch_spi_select_chip(data, data->current_msg->spi); in pch_spi_process_messages()
1164 spin_unlock(&data->lock); in pch_spi_process_messages()
1166 if (data->use_dma) in pch_spi_process_messages()
1167 pch_spi_request_dma(data, in pch_spi_process_messages()
1168 data->current_msg->spi->bits_per_word); in pch_spi_process_messages()
1169 pch_spi_writereg(data->master, PCH_SSNXCR, SSN_NO_CONTROL); in pch_spi_process_messages()
1175 spin_lock(&data->lock); in pch_spi_process_messages()
1176 if (data->cur_trans == NULL) { in pch_spi_process_messages()
1177 data->cur_trans = in pch_spi_process_messages()
1178 list_entry(data->current_msg->transfers.next, in pch_spi_process_messages()
1180 dev_dbg(&data->master->dev, in pch_spi_process_messages()
1184 data->cur_trans = in pch_spi_process_messages()
1185 list_entry(data->cur_trans->transfer_list.next, in pch_spi_process_messages()
1187 dev_dbg(&data->master->dev, in pch_spi_process_messages()
1191 spin_unlock(&data->lock); in pch_spi_process_messages()
1193 if (!data->cur_trans->len) in pch_spi_process_messages()
1195 cnt = (data->cur_trans->len - 1) / PCH_BUF_SIZE + 1; in pch_spi_process_messages()
1196 data->save_total_len = data->cur_trans->len; in pch_spi_process_messages()
1197 if (data->use_dma) { in pch_spi_process_messages()
1199 char *save_rx_buf = data->cur_trans->rx_buf; in pch_spi_process_messages()
1201 pch_spi_handle_dma(data, &bpw); in pch_spi_process_messages()
1202 if (!pch_spi_start_transfer(data)) { in pch_spi_process_messages()
1203 data->transfer_complete = true; in pch_spi_process_messages()
1204 data->current_msg->status = -EIO; in pch_spi_process_messages()
1205 data->current_msg->complete in pch_spi_process_messages()
1206 (data->current_msg->context); in pch_spi_process_messages()
1207 data->bcurrent_msg_processing = false; in pch_spi_process_messages()
1208 data->current_msg = NULL; in pch_spi_process_messages()
1209 data->cur_trans = NULL; in pch_spi_process_messages()
1212 pch_spi_copy_rx_data_for_dma(data, bpw); in pch_spi_process_messages()
1214 data->cur_trans->rx_buf = save_rx_buf; in pch_spi_process_messages()
1216 pch_spi_set_tx(data, &bpw); in pch_spi_process_messages()
1217 pch_spi_set_ir(data); in pch_spi_process_messages()
1218 pch_spi_copy_rx_data(data, bpw); in pch_spi_process_messages()
1219 kfree(data->pkt_rx_buff); in pch_spi_process_messages()
1220 data->pkt_rx_buff = NULL; in pch_spi_process_messages()
1221 kfree(data->pkt_tx_buff); in pch_spi_process_messages()
1222 data->pkt_tx_buff = NULL; in pch_spi_process_messages()
1225 data->cur_trans->len = data->save_total_len; in pch_spi_process_messages()
1226 data->current_msg->actual_length += data->cur_trans->len; in pch_spi_process_messages()
1228 dev_dbg(&data->master->dev, in pch_spi_process_messages()
1229 "%s:data->current_msg->actual_length=%d\n", in pch_spi_process_messages()
1230 __func__, data->current_msg->actual_length); in pch_spi_process_messages()
1233 if (data->cur_trans->delay_usecs) { in pch_spi_process_messages()
1234 dev_dbg(&data->master->dev, "%s:delay in usec=%d\n", in pch_spi_process_messages()
1235 __func__, data->cur_trans->delay_usecs); in pch_spi_process_messages()
1236 udelay(data->cur_trans->delay_usecs); in pch_spi_process_messages()
1239 spin_lock(&data->lock); in pch_spi_process_messages()
1242 if ((data->cur_trans->transfer_list.next) == in pch_spi_process_messages()
1243 &(data->current_msg->transfers)) { in pch_spi_process_messages()
1244 pch_spi_nomore_transfer(data); in pch_spi_process_messages()
1247 spin_unlock(&data->lock); in pch_spi_process_messages()
1249 } while (data->cur_trans != NULL); in pch_spi_process_messages()
1252 pch_spi_writereg(data->master, PCH_SSNXCR, SSN_HIGH); in pch_spi_process_messages()
1253 if (data->use_dma) in pch_spi_process_messages()
1254 pch_spi_release_dma(data); in pch_spi_process_messages()
1258 struct pch_spi_data *data) in pch_spi_free_resources() argument
1262 flush_work(&data->work); in pch_spi_free_resources()
1266 struct pch_spi_data *data) in pch_spi_get_resources() argument
1271 pch_spi_reset(data->master); in pch_spi_get_resources()
1275 dev_dbg(&board_dat->pdev->dev, "%s data->irq_reg_sts=true\n", __func__); in pch_spi_get_resources()
1281 struct pch_spi_data *data) in pch_free_dma_buf() argument
1285 dma = &data->dma; in pch_free_dma_buf()
1295 struct pch_spi_data *data) in pch_alloc_dma_buf() argument
1300 dma = &data->dma; in pch_alloc_dma_buf()
1322 struct pch_spi_data *data; in pch_spi_pd_probe() local
1334 data = spi_master_get_devdata(master); in pch_spi_pd_probe()
1335 data->master = master; in pch_spi_pd_probe()
1337 platform_set_drvdata(plat_dev, data); in pch_spi_pd_probe()
1340 data->io_base_addr = pci_resource_start(board_dat->pdev, 1) + in pch_spi_pd_probe()
1342 data->io_remap_addr = pci_iomap(board_dat->pdev, 1, 0); in pch_spi_pd_probe()
1343 if (!data->io_remap_addr) { in pch_spi_pd_probe()
1348 data->io_remap_addr += PCH_ADDRESS_SIZE * plat_dev->id; in pch_spi_pd_probe()
1351 plat_dev->id, data->io_remap_addr); in pch_spi_pd_probe()
1360 data->board_dat = board_dat; in pch_spi_pd_probe()
1361 data->plat_dev = plat_dev; in pch_spi_pd_probe()
1362 data->n_curnt_chip = 255; in pch_spi_pd_probe()
1363 data->status = STATUS_RUNNING; in pch_spi_pd_probe()
1364 data->ch = plat_dev->id; in pch_spi_pd_probe()
1365 data->use_dma = use_dma; in pch_spi_pd_probe()
1367 INIT_LIST_HEAD(&data->queue); in pch_spi_pd_probe()
1368 spin_lock_init(&data->lock); in pch_spi_pd_probe()
1369 INIT_WORK(&data->work, pch_spi_process_messages); in pch_spi_pd_probe()
1370 init_waitqueue_head(&data->wait); in pch_spi_pd_probe()
1372 ret = pch_spi_get_resources(board_dat, data); in pch_spi_pd_probe()
1379 IRQF_SHARED, KBUILD_MODNAME, data); in pch_spi_pd_probe()
1385 data->irq_reg_sts = true; in pch_spi_pd_probe()
1390 dev_info(&plat_dev->dev, "Use DMA for data transfers\n"); in pch_spi_pd_probe()
1391 ret = pch_alloc_dma_buf(board_dat, data); in pch_spi_pd_probe()
1406 pch_free_dma_buf(board_dat, data); in pch_spi_pd_probe()
1407 free_irq(board_dat->pdev->irq, data); in pch_spi_pd_probe()
1409 pch_spi_free_resources(board_dat, data); in pch_spi_pd_probe()
1411 pci_iounmap(board_dat->pdev, data->io_remap_addr); in pch_spi_pd_probe()
1421 struct pch_spi_data *data = platform_get_drvdata(plat_dev); in pch_spi_pd_remove() local
1429 pch_free_dma_buf(board_dat, data); in pch_spi_pd_remove()
1434 spin_lock_irqsave(&data->lock, flags); in pch_spi_pd_remove()
1435 data->status = STATUS_EXITING; in pch_spi_pd_remove()
1436 while ((list_empty(&data->queue) == 0) && --count) { in pch_spi_pd_remove()
1439 spin_unlock_irqrestore(&data->lock, flags); in pch_spi_pd_remove()
1441 spin_lock_irqsave(&data->lock, flags); in pch_spi_pd_remove()
1443 spin_unlock_irqrestore(&data->lock, flags); in pch_spi_pd_remove()
1445 pch_spi_free_resources(board_dat, data); in pch_spi_pd_remove()
1447 if (data->irq_reg_sts) { in pch_spi_pd_remove()
1449 pch_spi_setclr_reg(data->master, PCH_SPCR, 0, PCH_ALL); in pch_spi_pd_remove()
1450 data->irq_reg_sts = false; in pch_spi_pd_remove()
1451 free_irq(board_dat->pdev->irq, data); in pch_spi_pd_remove()
1454 pci_iounmap(board_dat->pdev, data->io_remap_addr); in pch_spi_pd_remove()
1455 spi_unregister_master(data->master); in pch_spi_pd_remove()
1465 struct pch_spi_data *data = platform_get_drvdata(pd_dev); in pch_spi_pd_suspend() local
1479 if (!(data->bcurrent_msg_processing)) in pch_spi_pd_suspend()
1485 if (data->irq_reg_sts) { in pch_spi_pd_suspend()
1487 pch_spi_setclr_reg(data->master, PCH_SPCR, 0, PCH_ALL); in pch_spi_pd_suspend()
1488 pch_spi_reset(data->master); in pch_spi_pd_suspend()
1489 free_irq(board_dat->pdev->irq, data); in pch_spi_pd_suspend()
1491 data->irq_reg_sts = false; in pch_spi_pd_suspend()
1502 struct pch_spi_data *data = platform_get_drvdata(pd_dev); in pch_spi_pd_resume() local
1511 if (!data->irq_reg_sts) { in pch_spi_pd_resume()
1514 IRQF_SHARED, KBUILD_MODNAME, data); in pch_spi_pd_resume()
1522 pch_spi_reset(data->master); in pch_spi_pd_resume()
1523 pch_spi_set_master_mode(data->master); in pch_spi_pd_resume()
1524 data->irq_reg_sts = true; in pch_spi_pd_resume()
1725 "to use DMA for data transfers pass 1 else 0; default 1");