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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/drivers/bluetooth/btmrvl_sdio.h
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/* SPDX-License-Identifier: GPL-2.0-only */

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/**

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 * Marvell BT-over-SDIO driver: SDIO interface related definitions

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 *

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 * Copyright (C) 2009, Marvell International Ltd.

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 **/

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#define SDIO_HEADER_LEN			4

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/* SD block size can not bigger than 64 due to buf size limit in firmware */

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/* define SD block size for data Tx/Rx */

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#define SDIO_BLOCK_SIZE			64

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/* Number of blocks for firmware transfer */

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#define FIRMWARE_TRANSFER_NBLOCK	2

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/* This is for firmware specific length */

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#define FW_EXTRA_LEN			36

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#define MRVDRV_SIZE_OF_CMD_BUFFER       (2 * 1024)

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#define MRVDRV_BT_RX_PACKET_BUFFER_SIZE \

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	(HCI_MAX_FRAME_SIZE + FW_EXTRA_LEN)

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#define ALLOC_BUF_SIZE	(((max_t (int, MRVDRV_BT_RX_PACKET_BUFFER_SIZE, \

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			MRVDRV_SIZE_OF_CMD_BUFFER) + SDIO_HEADER_LEN \

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			+ SDIO_BLOCK_SIZE - 1) / SDIO_BLOCK_SIZE) \

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			* SDIO_BLOCK_SIZE)

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/* The number of times to try when polling for status */

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#define MAX_POLL_TRIES			100

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/* Max retry number of CMD53 write */

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#define MAX_WRITE_IOMEM_RETRY		2

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/* register bitmasks */

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#define HOST_POWER_UP				BIT(1)

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#define HOST_CMD53_FIN				BIT(2)

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#define HIM_DISABLE				0xff

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#define HIM_ENABLE				(BIT(0) | BIT(1))

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#define UP_LD_HOST_INT_STATUS			BIT(0)

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#define DN_LD_HOST_INT_STATUS			BIT(1)

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#define DN_LD_CARD_RDY				BIT(0)

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#define CARD_IO_READY				BIT(3)

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#define FIRMWARE_READY				0xfedc

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struct btmrvl_plt_wake_cfg {

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	int irq_bt;

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	bool wake_by_bt;

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};

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struct btmrvl_sdio_card_reg {

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	u8 cfg;

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	u8 host_int_mask;

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	u8 host_intstatus;

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	u8 card_status;

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	u8 sq_read_base_addr_a0;

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	u8 sq_read_base_addr_a1;

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	u8 card_revision;

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	u8 card_fw_status0;

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	u8 card_fw_status1;

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	u8 card_rx_len;

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	u8 card_rx_unit;

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	u8 io_port_0;

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	u8 io_port_1;

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	u8 io_port_2;

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	bool int_read_to_clear;

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	u8 host_int_rsr;

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	u8 card_misc_cfg;

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	u8 fw_dump_ctrl;

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	u8 fw_dump_start;

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	u8 fw_dump_end;

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};

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struct btmrvl_sdio_card {

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	struct sdio_func *func;

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	u32 ioport;

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	const char *helper;

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	const char *firmware;

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	const struct btmrvl_sdio_card_reg *reg;

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	bool support_pscan_win_report;

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	bool supports_fw_dump;

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	u16 sd_blksz_fw_dl;

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	u8 rx_unit;

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	struct btmrvl_private *priv;

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	struct device_node *plt_of_node;

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	struct btmrvl_plt_wake_cfg *plt_wake_cfg;

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};

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struct btmrvl_sdio_device {

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	const char *helper;

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	const char *firmware;

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	const struct btmrvl_sdio_card_reg *reg;

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	const bool support_pscan_win_report;

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	u16 sd_blksz_fw_dl;

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	bool supports_fw_dump;

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};

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/* Platform specific DMA alignment */

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#define BTSDIO_DMA_ALIGN		8

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/* Macros for Data Alignment : size */

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#define ALIGN_SZ(p, a)	\

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	(((p) + ((a) - 1)) & ~((a) - 1))

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/* Macros for Data Alignment : address */

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#define ALIGN_ADDR(p, a)	\

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	((((unsigned long)(p)) + (((unsigned long)(a)) - 1)) & \

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					~(((unsigned long)(a)) - 1))

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