From 789221ecc870117b77e354d488d5d29f15410de8 Mon Sep 17 00:00:00 2001 From: Bing Zhao Date: Tue, 2 Jun 2009 14:29:36 -0700 Subject: Bluetooth: Add Marvell BT-over-SDIO driver This driver supports Marvell Bluetooth enabled devices with SDIO interface. Currently only SD8688 chip is supported. The helper/firmware images of SD8688 can be downloaded from this tree: git://git.infradead.org/users/dwmw2/linux-firmware.git This patch incorporates a lot of comments given by Nicolas Pitre . Many thanks to Nicolas Pitre. Signed-off-by: Rahul Tank Signed-off-by: Bing Zhao Signed-off-by: Marcel Holtmann --- drivers/bluetooth/btmrvl_sdio.h | 113 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 113 insertions(+) create mode 100644 drivers/bluetooth/btmrvl_sdio.h (limited to 'drivers/bluetooth/btmrvl_sdio.h') diff --git a/drivers/bluetooth/btmrvl_sdio.h b/drivers/bluetooth/btmrvl_sdio.h new file mode 100644 index 00000000000..08bef333ded --- /dev/null +++ b/drivers/bluetooth/btmrvl_sdio.h @@ -0,0 +1,113 @@ +/** + * Marvell BT-over-SDIO driver: SDIO interface related definitions + * + * Copyright (C) 2009, Marvell International Ltd. + * + * This software file (the "File") is distributed by Marvell International + * Ltd. under the terms of the GNU General Public License Version 2, June 1991 + * (the "License"). You may use, redistribute and/or modify this File in + * accordance with the terms and conditions of the License, a copy of which + * is available by writing to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the + * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. + * + * + * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE + * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE + * ARE EXPRESSLY DISCLAIMED. The License provides additional details about + * this warranty disclaimer. + * + **/ + +#ifndef _BTMRVL_SDIO_H_ +#define _BTMRVL_SDIO_H_ + +#define SDIO_HEADER_LEN 4 + +/* SD block size can not bigger than 64 due to buf size limit in firmware */ +/* define SD block size for data Tx/Rx */ +#define SDIO_BLOCK_SIZE 64 + +/* Number of blocks for firmware transfer */ +#define FIRMWARE_TRANSFER_NBLOCK 2 + +/* This is for firmware specific length */ +#define FW_EXTRA_LEN 36 + +#define MRVDRV_SIZE_OF_CMD_BUFFER (2 * 1024) + +#define MRVDRV_BT_RX_PACKET_BUFFER_SIZE \ + (HCI_MAX_FRAME_SIZE + FW_EXTRA_LEN) + +#define ALLOC_BUF_SIZE (((max_t (int, MRVDRV_BT_RX_PACKET_BUFFER_SIZE, \ + MRVDRV_SIZE_OF_CMD_BUFFER) + SDIO_HEADER_LEN \ + + SDIO_BLOCK_SIZE - 1) / SDIO_BLOCK_SIZE) \ + * SDIO_BLOCK_SIZE) + +/* The number of times to try when polling for status */ +#define MAX_POLL_TRIES 100 + +/* Max retry number of CMD53 write */ +#define MAX_WRITE_IOMEM_RETRY 2 + +/* Host Control Registers */ +#define IO_PORT_0_REG 0x00 +#define IO_PORT_1_REG 0x01 +#define IO_PORT_2_REG 0x02 + +#define CONFIG_REG 0x03 +#define HOST_POWER_UP BIT(1) +#define HOST_CMD53_FIN BIT(2) + +#define HOST_INT_MASK_REG 0x04 +#define HIM_DISABLE 0xff +#define HIM_ENABLE (BIT(0) | BIT(1)) + +#define HOST_INTSTATUS_REG 0x05 +#define UP_LD_HOST_INT_STATUS BIT(0) +#define DN_LD_HOST_INT_STATUS BIT(1) + +/* Card Control Registers */ +#define SQ_READ_BASE_ADDRESS_A0_REG 0x10 +#define SQ_READ_BASE_ADDRESS_A1_REG 0x11 + +#define CARD_STATUS_REG 0x20 +#define DN_LD_CARD_RDY BIT(0) +#define CARD_IO_READY BIT(3) + +#define CARD_FW_STATUS0_REG 0x40 +#define CARD_FW_STATUS1_REG 0x41 +#define FIRMWARE_READY 0xfedc + +#define CARD_RX_LEN_REG 0x42 +#define CARD_RX_UNIT_REG 0x43 + + +struct btmrvl_sdio_card { + struct sdio_func *func; + u32 ioport; + const char *helper; + const char *firmware; + u8 rx_unit; + struct btmrvl_private *priv; +}; + +struct btmrvl_sdio_device { + unsigned short dev_id; + const char *helper; + const char *firmware; +}; + + +/* Platform specific DMA alignment */ +#define BTSDIO_DMA_ALIGN 8 + +/* Macros for Data Alignment : size */ +#define ALIGN_SZ(p, a) \ + (((p) + ((a) - 1)) & ~((a) - 1)) + +/* Macros for Data Alignment : address */ +#define ALIGN_ADDR(p, a) \ + ((((u32)(p)) + (((u32)(a)) - 1)) & ~(((u32)(a)) - 1)) + +#endif /* _BTMRVL_SDIO_H_ */ -- cgit v1.2.3