81 static void free_if_spi_card(struct if_spi_card *card)  in free_if_spi_card()  argument
86 	list_for_each_safe(cursor, next, &card->cmd_packet_list) {  in free_if_spi_card()
91 	list_for_each_safe(cursor, next, &card->data_packet_list) {  in free_if_spi_card()
96 	kfree(card);  in free_if_spi_card()
133 static void spu_transaction_init(struct if_spi_card *card)  in spu_transaction_init()  argument
135 	if (!time_after(jiffies, card->prev_xfer_time + 1)) {  in spu_transaction_init()
144 static void spu_transaction_finish(struct if_spi_card *card)  in spu_transaction_finish()  argument
146 	card->prev_xfer_time = jiffies;  in spu_transaction_finish()
153 static int spu_write(struct if_spi_card *card, u16 reg, const u8 *buf, int len)  in spu_write()  argument
169 	spu_transaction_init(card);  in spu_write()
181 	err = spi_sync(card->spi, &m);  in spu_write()
182 	spu_transaction_finish(card);  in spu_write()
186 static inline int spu_write_u16(struct if_spi_card *card, u16 reg, u16 val)  in spu_write_u16()  argument
191 	return spu_write(card, reg, (u8 *)&buff, sizeof(u16));  in spu_write_u16()
206 static int spu_read(struct if_spi_card *card, u16 reg, u8 *buf, int len)  in spu_read()  argument
222 	spu_transaction_init(card);  in spu_read()
234 	delay = spu_reg_is_port_reg(reg) ? card->spu_port_delay :  in spu_read()
235 						card->spu_reg_delay;  in spu_read()
236 	if (card->use_dummy_writes) {  in spu_read()
251 	err = spi_sync(card->spi, &m);  in spu_read()
252 	spu_transaction_finish(card);  in spu_read()
257 static inline int spu_read_u16(struct if_spi_card *card, u16 reg, u16 *val)  in spu_read_u16()  argument
262 	ret = spu_read(card, reg, (u8 *)&buf, sizeof(buf));  in spu_read_u16()
272 static int spu_read_u32(struct if_spi_card *card, u16 reg, u32 *val)  in spu_read_u32()  argument
277 	err = spu_read(card, reg, (u8 *)&buf, sizeof(buf));  in spu_read_u32()
292 static int spu_wait_for_u16(struct if_spi_card *card, u16 reg,  in spu_wait_for_u16()  argument
299 		err = spu_read_u16(card, reg, &val);  in spu_wait_for_u16()
322 static int spu_wait_for_u32(struct if_spi_card *card, u32 reg, u32 target)  in spu_wait_for_u32()  argument
327 		err = spu_read_u32(card, reg, &val);  in spu_wait_for_u32()
337 static int spu_set_interrupt_mode(struct if_spi_card *card,  in spu_set_interrupt_mode()  argument
348 		err = spu_write_u16(card, IF_SPI_HOST_INT_STATUS_MASK_REG, 0);  in spu_set_interrupt_mode()
352 		err = spu_write_u16(card, IF_SPI_HOST_INT_STATUS_MASK_REG,  in spu_set_interrupt_mode()
369 		err = spu_write_u16(card, IF_SPI_HOST_INT_CTRL_REG,  in spu_set_interrupt_mode()
377 		err = spu_write_u16(card, IF_SPI_HOST_INT_STATUS_MASK_REG, 0);  in spu_set_interrupt_mode()
384 static int spu_get_chip_revision(struct if_spi_card *card,  in spu_get_chip_revision()  argument
389 	err = spu_read_u32(card, IF_SPI_DEVICEID_CTRL_REG, &dev_ctrl);  in spu_get_chip_revision()
397 static int spu_set_bus_mode(struct if_spi_card *card, u16 mode)  in spu_set_bus_mode()  argument
402 	err = spu_write_u16(card, IF_SPI_SPU_BUS_MODE_REG, mode);  in spu_set_bus_mode()
406 	err = spu_read_u16(card, IF_SPI_SPU_BUS_MODE_REG, &rval);  in spu_set_bus_mode()
416 static int spu_init(struct if_spi_card *card, int use_dummy_writes)  in spu_init()  argument
425 	card->use_dummy_writes = 0;  in spu_init()
426 	err = spu_set_bus_mode(card,  in spu_init()
432 	card->spu_port_delay = 1000;  in spu_init()
433 	card->spu_reg_delay = 1000;  in spu_init()
434 	err = spu_read_u32(card, IF_SPI_DELAY_READ_REG, &delay);  in spu_init()
437 	card->spu_port_delay = delay & 0x0000ffff;  in spu_init()
438 	card->spu_reg_delay = (delay & 0xffff0000) >> 16;  in spu_init()
442 		card->use_dummy_writes = 1;  in spu_init()
443 		err = spu_set_bus_mode(card,  in spu_init()
453 		    card->spu_port_delay, card->spu_reg_delay);  in spu_init()
461 static int if_spi_prog_helper_firmware(struct if_spi_card *card,  in if_spi_prog_helper_firmware()  argument
471 	err = spu_set_interrupt_mode(card, 1, 0);  in if_spi_prog_helper_firmware()
484 		err = spu_write_u16(card, IF_SPI_SCRATCH_1_REG,  in if_spi_prog_helper_firmware()
489 		err = spu_wait_for_u16(card, IF_SPI_HOST_INT_STATUS_REG,  in if_spi_prog_helper_firmware()
503 		err = spu_write(card, IF_SPI_CMD_RDWRPORT_REG,  in if_spi_prog_helper_firmware()
509 		err = spu_write_u16(card, IF_SPI_HOST_INT_STATUS_REG, 0);  in if_spi_prog_helper_firmware()
512 		err = spu_write_u16(card, IF_SPI_CARD_INT_CAUSE_REG,  in if_spi_prog_helper_firmware()
525 	err = spu_write_u16(card, IF_SPI_SCRATCH_1_REG, FIRMWARE_DNLD_OK);  in if_spi_prog_helper_firmware()
528 	err = spu_write_u16(card, IF_SPI_HOST_INT_STATUS_REG, 0);  in if_spi_prog_helper_firmware()
531 	err = spu_write_u16(card, IF_SPI_CARD_INT_CAUSE_REG,  in if_spi_prog_helper_firmware()
544 static int if_spi_prog_main_firmware_check_len(struct if_spi_card *card,  in if_spi_prog_main_firmware_check_len()  argument
554 	err = spu_wait_for_u16(card, IF_SPI_HOST_INT_STATUS_REG,  in if_spi_prog_main_firmware_check_len()
563 	err = spu_read_u16(card, IF_SPI_SCRATCH_1_REG, &len);  in if_spi_prog_main_firmware_check_len()
582 static int if_spi_prog_main_firmware(struct if_spi_card *card,  in if_spi_prog_main_firmware()  argument
585 	struct lbs_private *priv = card->priv;  in if_spi_prog_main_firmware()
593 	err = spu_set_interrupt_mode(card, 1, 0);  in if_spi_prog_main_firmware()
597 	err = spu_wait_for_u16(card, IF_SPI_SCRATCH_1_REG, 0, 0);  in if_spi_prog_main_firmware()
609 	while ((len = if_spi_prog_main_firmware_check_len(card, &crc_err))) {  in if_spi_prog_main_firmware()
636 			memset(card->cmd_buffer, 0, len);  in if_spi_prog_main_firmware()
637 			memcpy(card->cmd_buffer, fw, bytes);  in if_spi_prog_main_firmware()
639 			memcpy(card->cmd_buffer, fw, len);  in if_spi_prog_main_firmware()
641 		err = spu_write_u16(card, IF_SPI_HOST_INT_STATUS_REG, 0);  in if_spi_prog_main_firmware()
644 		err = spu_write(card, IF_SPI_CMD_RDWRPORT_REG,  in if_spi_prog_main_firmware()
645 				card->cmd_buffer, len);  in if_spi_prog_main_firmware()
648 		err = spu_write_u16(card, IF_SPI_CARD_INT_CAUSE_REG ,  in if_spi_prog_main_firmware()
659 	err = spu_wait_for_u32(card, IF_SPI_SCRATCH_4_REG,  in if_spi_prog_main_firmware()
680 static int if_spi_c2h_cmd(struct if_spi_card *card)  in if_spi_c2h_cmd()  argument
682 	struct lbs_private *priv = card->priv;  in if_spi_c2h_cmd()
705 	err = spu_read_u16(card, IF_SPI_SCRATCH_2_REG, &len);  in if_spi_c2h_cmd()
722 	err = spu_read(card, IF_SPI_CMD_RDWRPORT_REG,  in if_spi_c2h_cmd()
723 				card->cmd_buffer, ALIGN(len, 4));  in if_spi_c2h_cmd()
731 	memcpy(priv->resp_buf[i], card->cmd_buffer, len);  in if_spi_c2h_cmd()
743 static int if_spi_c2h_data(struct if_spi_card *card)  in if_spi_c2h_data()  argument
745 	struct lbs_private *priv = card->priv;  in if_spi_c2h_data()
754 	err = spu_read_u16(card, IF_SPI_SCRATCH_1_REG, &len);  in if_spi_c2h_data()
780 	err = spu_read(card, IF_SPI_DATA_RDWRPORT_REG, data, ALIGN(len, 4));  in if_spi_c2h_data()
785 	err = lbs_process_rxed_packet(card->priv, skb);  in if_spi_c2h_data()
802 static void if_spi_h2c(struct if_spi_card *card,  in if_spi_h2c()  argument
805 	struct lbs_private *priv = card->priv;  in if_spi_h2c()
826 	err = spu_write(card, port_reg, packet->buffer, packet->blen);  in if_spi_h2c()
838 static void if_spi_e2h(struct if_spi_card *card)  in if_spi_e2h()  argument
842 	struct lbs_private *priv = card->priv;  in if_spi_e2h()
844 	err = spu_read_u32(card, IF_SPI_SCRATCH_3_REG, &cause);  in if_spi_e2h()
849 	spu_write_u16(card, IF_SPI_HOST_INT_STATUS_REG,  in if_spi_e2h()
853 	spu_write_u16(card, IF_SPI_CARD_INT_CAUSE_REG, IF_SPI_CIC_HOST_EVENT);  in if_spi_e2h()
864 	struct if_spi_card *card;  in if_spi_host_to_card_worker()  local
870 	card = container_of(work, struct if_spi_card, packet_work);  in if_spi_host_to_card_worker()
871 	priv = card->priv;  in if_spi_host_to_card_worker()
879 	err = spu_read_u16(card, IF_SPI_HOST_INT_STATUS_REG,  in if_spi_host_to_card_worker()
887 		err = if_spi_c2h_cmd(card);  in if_spi_host_to_card_worker()
892 		err = if_spi_c2h_data(card);  in if_spi_host_to_card_worker()
902 	   (card->priv->psstate != PS_STATE_FULL_POWER &&  in if_spi_host_to_card_worker()
911 		lbs_host_to_card_done(card->priv);  in if_spi_host_to_card_worker()
915 		spin_lock_irqsave(&card->buffer_lock, flags);  in if_spi_host_to_card_worker()
916 		if (!list_empty(&card->cmd_packet_list)) {  in if_spi_host_to_card_worker()
917 			packet = (struct if_spi_packet *)(card->  in if_spi_host_to_card_worker()
921 		spin_unlock_irqrestore(&card->buffer_lock, flags);  in if_spi_host_to_card_worker()
924 			if_spi_h2c(card, packet, MVMS_CMD);  in if_spi_host_to_card_worker()
929 		spin_lock_irqsave(&card->buffer_lock, flags);  in if_spi_host_to_card_worker()
930 		if (!list_empty(&card->data_packet_list)) {  in if_spi_host_to_card_worker()
931 			packet = (struct if_spi_packet *)(card->  in if_spi_host_to_card_worker()
935 		spin_unlock_irqrestore(&card->buffer_lock, flags);  in if_spi_host_to_card_worker()
938 			if_spi_h2c(card, packet, MVMS_DAT);  in if_spi_host_to_card_worker()
941 		if_spi_e2h(card);  in if_spi_host_to_card_worker()
961 	struct if_spi_card *card = priv->card;  in if_spi_host_to_card()  local
986 		spin_lock_irqsave(&card->buffer_lock, flags);  in if_spi_host_to_card()
987 		list_add_tail(&packet->list, &card->cmd_packet_list);  in if_spi_host_to_card()
988 		spin_unlock_irqrestore(&card->buffer_lock, flags);  in if_spi_host_to_card()
992 		spin_lock_irqsave(&card->buffer_lock, flags);  in if_spi_host_to_card()
993 		list_add_tail(&packet->list, &card->data_packet_list);  in if_spi_host_to_card()
994 		spin_unlock_irqrestore(&card->buffer_lock, flags);  in if_spi_host_to_card()
1005 	queue_work(card->workqueue, &card->packet_work);  in if_spi_host_to_card()
1019 	struct if_spi_card *card = dev_id;  in if_spi_host_interrupt()  local
1021 	queue_work(card->workqueue, &card->packet_work);  in if_spi_host_interrupt()
1030 static int if_spi_init_card(struct if_spi_card *card)  in if_spi_init_card()  argument
1032 	struct lbs_private *priv = card->priv;  in if_spi_init_card()
1040 	err = spu_init(card, card->pdata->use_dummy_writes);  in if_spi_init_card()
1043 	err = spu_get_chip_revision(card, &card->card_id, &card->card_rev);  in if_spi_init_card()
1047 	err = spu_read_u32(card, IF_SPI_SCRATCH_4_REG, &scratch);  in if_spi_init_card()
1056 			if (card->card_id == fw_table[i].model)  in if_spi_init_card()
1061 				   card->card_id);  in if_spi_init_card()
1066 		err = lbs_get_firmware(&card->spi->dev, card->card_id,  in if_spi_init_card()
1078 				card->card_id, card->card_rev,  in if_spi_init_card()
1079 				card->spi->master->bus_num,  in if_spi_init_card()
1080 				card->spi->chip_select,  in if_spi_init_card()
1081 				card->spi->max_speed_hz);  in if_spi_init_card()
1082 		err = if_spi_prog_helper_firmware(card, helper);  in if_spi_init_card()
1085 		err = if_spi_prog_main_firmware(card, mainfw);  in if_spi_init_card()
1091 	err = spu_set_interrupt_mode(card, 0, 1);  in if_spi_init_card()
1102 	struct if_spi_card *card;  in if_spi_resume_worker()  local
1104 	card = container_of(work, struct if_spi_card, resume_work);  in if_spi_resume_worker()
1106 	if (card->suspended) {  in if_spi_resume_worker()
1107 		if (card->pdata->setup)  in if_spi_resume_worker()
1108 			card->pdata->setup(card->spi);  in if_spi_resume_worker()
1111 		if_spi_init_card(card);  in if_spi_resume_worker()
1113 		enable_irq(card->spi->irq);  in if_spi_resume_worker()
1116 		lbs_resume(card->priv);  in if_spi_resume_worker()
1118 		card->suspended = 0;  in if_spi_resume_worker()
1124 	struct if_spi_card *card;  in if_spi_probe()  local
1143 	card = kzalloc(sizeof(struct if_spi_card), GFP_KERNEL);  in if_spi_probe()
1144 	if (!card) {  in if_spi_probe()
1148 	spi_set_drvdata(spi, card);  in if_spi_probe()
1149 	card->pdata = pdata;  in if_spi_probe()
1150 	card->spi = spi;  in if_spi_probe()
1151 	card->prev_xfer_time = jiffies;  in if_spi_probe()
1153 	INIT_LIST_HEAD(&card->cmd_packet_list);  in if_spi_probe()
1154 	INIT_LIST_HEAD(&card->data_packet_list);  in if_spi_probe()
1155 	spin_lock_init(&card->buffer_lock);  in if_spi_probe()
1160 	err = if_spi_init_card(card);  in if_spi_probe()
1168 	priv = lbs_add_card(card, &spi->dev);  in if_spi_probe()
1173 	card->priv = priv;  in if_spi_probe()
1175 	priv->card = card;  in if_spi_probe()
1183 	card->workqueue = create_workqueue("libertas_spi");  in if_spi_probe()
1184 	INIT_WORK(&card->packet_work, if_spi_host_to_card_worker);  in if_spi_probe()
1185 	INIT_WORK(&card->resume_work, if_spi_resume_worker);  in if_spi_probe()
1188 			IRQF_TRIGGER_FALLING, "libertas_spi", card);  in if_spi_probe()
1209 	free_irq(spi->irq, card);  in if_spi_probe()
1211 	flush_workqueue(card->workqueue);  in if_spi_probe()
1212 	destroy_workqueue(card->workqueue);  in if_spi_probe()
1215 	free_if_spi_card(card);  in if_spi_probe()
1226 	struct if_spi_card *card = spi_get_drvdata(spi);  in libertas_spi_remove()  local
1227 	struct lbs_private *priv = card->priv;  in libertas_spi_remove()
1232 	cancel_work_sync(&card->resume_work);  in libertas_spi_remove()
1237 	free_irq(spi->irq, card);  in libertas_spi_remove()
1238 	flush_workqueue(card->workqueue);  in libertas_spi_remove()
1239 	destroy_workqueue(card->workqueue);  in libertas_spi_remove()
1240 	if (card->pdata->teardown)  in libertas_spi_remove()
1241 		card->pdata->teardown(spi);  in libertas_spi_remove()
1242 	free_if_spi_card(card);  in libertas_spi_remove()
1250 	struct if_spi_card *card = spi_get_drvdata(spi);  in if_spi_suspend()  local
1252 	if (!card->suspended) {  in if_spi_suspend()
1253 		lbs_suspend(card->priv);  in if_spi_suspend()
1254 		flush_workqueue(card->workqueue);  in if_spi_suspend()
1257 		if (card->pdata->teardown)  in if_spi_suspend()
1258 			card->pdata->teardown(spi);  in if_spi_suspend()
1259 		card->suspended = 1;  in if_spi_suspend()
1268 	struct if_spi_card *card = spi_get_drvdata(spi);  in if_spi_resume()  local
1271 	schedule_work(&card->resume_work);  in if_spi_resume()