1 // SPDX-License-Identifier: GPL-2.0-only
3  * dice_transaction.c - a part of driver for Dice based devices
16 		offset += dice->tx_offset;  in get_subaddr()
19 		offset += dice->rx_offset;  in get_subaddr()
22 		offset += dice->sync_offset;  in get_subaddr()
25 		offset += dice->rsrv_offset;  in get_subaddr()
29 		offset += dice->global_offset;  in get_subaddr()
40 	return snd_fw_transaction(dice->unit,  in snd_dice_transaction_write()
50 	return snd_fw_transaction(dice->unit,  in snd_dice_transaction_read()
87 		err = -ENOSYS;  in snd_dice_transaction_get_rate()
101 	if (dice->global_enabled)  in snd_dice_transaction_set_enable()
105 	err = snd_fw_transaction(dice->unit, TCODE_WRITE_QUADLET_REQUEST,  in snd_dice_transaction_set_enable()
109 				 FW_FIXED_GENERATION | dice->owner_generation);  in snd_dice_transaction_set_enable()
113 	dice->global_enabled = true;  in snd_dice_transaction_set_enable()
123 	snd_fw_transaction(dice->unit, TCODE_WRITE_QUADLET_REQUEST,  in snd_dice_transaction_clear_enable()
127 			   FW_FIXED_GENERATION | dice->owner_generation);  in snd_dice_transaction_clear_enable()
129 	dice->global_enabled = false;  in snd_dice_transaction_clear_enable()
152 	spin_lock_irqsave(&dice->lock, flags);  in dice_notification()
153 	dice->notification_bits |= bits;  in dice_notification()
154 	spin_unlock_irqrestore(&dice->lock, flags);  in dice_notification()
159 		complete(&dice->clock_accepted);  in dice_notification()
160 	wake_up(&dice->hwdep_wait);  in dice_notification()
165 	struct fw_device *device = fw_parent_device(dice->unit);  in register_notification_address()
174 		return -ENOMEM;  in register_notification_address()
179 			((u64)device->card->node_id << OWNER_NODE_SHIFT) |  in register_notification_address()
180 			dice->notification_handler.offset);  in register_notification_address()
182 		dice->owner_generation = device->generation;  in register_notification_address()
184 		err = snd_fw_transaction(dice->unit, TCODE_LOCK_COMPARE_SWAP,  in register_notification_address()
190 							dice->owner_generation);  in register_notification_address()
199 			dev_err(&dice->unit->device,  in register_notification_address()
201 			err = -EBUSY;  in register_notification_address()
203 		if (err != -EAGAIN || retries-- > 0)  in register_notification_address()
212 		dice->owner_generation = -1;  in register_notification_address()
219 	struct fw_device *device = fw_parent_device(dice->unit);  in unregister_notification_address()
227 		((u64)device->card->node_id << OWNER_NODE_SHIFT) |  in unregister_notification_address()
228 		dice->notification_handler.offset);  in unregister_notification_address()
230 	snd_fw_transaction(dice->unit, TCODE_LOCK_COMPARE_SWAP,  in unregister_notification_address()
234 			   FW_FIXED_GENERATION | dice->owner_generation);  in unregister_notification_address()
238 	dice->owner_generation = -1;  in unregister_notification_address()
243 	struct fw_address_handler *handler = &dice->notification_handler;  in snd_dice_transaction_destroy()
245 	if (handler->callback_data == NULL)  in snd_dice_transaction_destroy()
251 	handler->callback_data = NULL;  in snd_dice_transaction_destroy()
256 	struct fw_address_handler *handler = &dice->notification_handler;  in snd_dice_transaction_reinit()
258 	if (handler->callback_data == NULL)  in snd_dice_transaction_reinit()
259 		return -EINVAL;  in snd_dice_transaction_reinit()
282 		return -ENOMEM;  in get_subaddrs()
285 	 * Check that the sub address spaces exist and are located inside the  in get_subaddrs()
289 	err = snd_fw_transaction(dice->unit, TCODE_READ_BLOCK_REQUEST,  in get_subaddrs()
298 			err = -ENODEV;  in get_subaddrs()
308 		err = snd_fw_transaction(dice->unit, TCODE_READ_QUADLET_REQUEST,  in get_subaddrs()
317 			dev_err(&dice->unit->device,  in get_subaddrs()
320 			err = -ENODEV;  in get_subaddrs()
325 		dice->clock_caps = 1;  in get_subaddrs()
328 	dice->global_offset = be32_to_cpu(pointers[0]) * 4;  in get_subaddrs()
329 	dice->tx_offset = be32_to_cpu(pointers[2]) * 4;  in get_subaddrs()
330 	dice->rx_offset = be32_to_cpu(pointers[4]) * 4;  in get_subaddrs()
334 		dice->sync_offset = be32_to_cpu(pointers[6]) * 4;  in get_subaddrs()
336 		dice->rsrv_offset = be32_to_cpu(pointers[8]) * 4;  in get_subaddrs()
344 	struct fw_address_handler *handler = &dice->notification_handler;  in snd_dice_transaction_init()
352 	handler->length = 4;  in snd_dice_transaction_init()
353 	handler->address_callback = dice_notification;  in snd_dice_transaction_init()
354 	handler->callback_data = dice;  in snd_dice_transaction_init()
357 		handler->callback_data = NULL;  in snd_dice_transaction_init()
365 		handler->callback_data = NULL;  in snd_dice_transaction_init()