linux/drivers/bluetooth/btmrvl_sdio.h
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   1/**
   2 * Marvell BT-over-SDIO driver: SDIO interface related definitions
   3 *
   4 * Copyright (C) 2009, Marvell International Ltd.
   5 *
   6 * This software file (the "File") is distributed by Marvell International
   7 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
   8 * (the "License").  You may use, redistribute and/or modify this File in
   9 * accordance with the terms and conditions of the License, a copy of which
  10 * is available by writing to the Free Software Foundation, Inc.,
  11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
  12 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
  13 *
  14 *
  15 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
  16 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
  17 * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
  18 * this warranty disclaimer.
  19 *
  20 **/
  21
  22#define SDIO_HEADER_LEN                 4
  23
  24/* SD block size can not bigger than 64 due to buf size limit in firmware */
  25/* define SD block size for data Tx/Rx */
  26#define SDIO_BLOCK_SIZE                 64
  27
  28/* Number of blocks for firmware transfer */
  29#define FIRMWARE_TRANSFER_NBLOCK        2
  30
  31/* This is for firmware specific length */
  32#define FW_EXTRA_LEN                    36
  33
  34#define MRVDRV_SIZE_OF_CMD_BUFFER       (2 * 1024)
  35
  36#define MRVDRV_BT_RX_PACKET_BUFFER_SIZE \
  37        (HCI_MAX_FRAME_SIZE + FW_EXTRA_LEN)
  38
  39#define ALLOC_BUF_SIZE  (((max_t (int, MRVDRV_BT_RX_PACKET_BUFFER_SIZE, \
  40                        MRVDRV_SIZE_OF_CMD_BUFFER) + SDIO_HEADER_LEN \
  41                        + SDIO_BLOCK_SIZE - 1) / SDIO_BLOCK_SIZE) \
  42                        * SDIO_BLOCK_SIZE)
  43
  44/* The number of times to try when polling for status */
  45#define MAX_POLL_TRIES                  100
  46
  47/* Max retry number of CMD53 write */
  48#define MAX_WRITE_IOMEM_RETRY           2
  49
  50/* register bitmasks */
  51#define HOST_POWER_UP                           BIT(1)
  52#define HOST_CMD53_FIN                          BIT(2)
  53
  54#define HIM_DISABLE                             0xff
  55#define HIM_ENABLE                              (BIT(0) | BIT(1))
  56
  57#define UP_LD_HOST_INT_STATUS                   BIT(0)
  58#define DN_LD_HOST_INT_STATUS                   BIT(1)
  59
  60#define DN_LD_CARD_RDY                          BIT(0)
  61#define CARD_IO_READY                           BIT(3)
  62
  63#define FIRMWARE_READY                          0xfedc
  64
  65
  66struct btmrvl_sdio_card_reg {
  67        u8 cfg;
  68        u8 host_int_mask;
  69        u8 host_intstatus;
  70        u8 card_status;
  71        u8 sq_read_base_addr_a0;
  72        u8 sq_read_base_addr_a1;
  73        u8 card_revision;
  74        u8 card_fw_status0;
  75        u8 card_fw_status1;
  76        u8 card_rx_len;
  77        u8 card_rx_unit;
  78        u8 io_port_0;
  79        u8 io_port_1;
  80        u8 io_port_2;
  81};
  82
  83struct btmrvl_sdio_card {
  84        struct sdio_func *func;
  85        u32 ioport;
  86        const char *helper;
  87        const char *firmware;
  88        const struct btmrvl_sdio_card_reg *reg;
  89        u16 sd_blksz_fw_dl;
  90        u8 rx_unit;
  91        struct btmrvl_private *priv;
  92};
  93
  94struct btmrvl_sdio_device {
  95        const char *helper;
  96        const char *firmware;
  97        const struct btmrvl_sdio_card_reg *reg;
  98        u16 sd_blksz_fw_dl;
  99};
 100
 101
 102/* Platform specific DMA alignment */
 103#define BTSDIO_DMA_ALIGN                8
 104
 105/* Macros for Data Alignment : size */
 106#define ALIGN_SZ(p, a)  \
 107        (((p) + ((a) - 1)) & ~((a) - 1))
 108
 109/* Macros for Data Alignment : address */
 110#define ALIGN_ADDR(p, a)        \
 111        ((((unsigned long)(p)) + (((unsigned long)(a)) - 1)) & \
 112                                        ~(((unsigned long)(a)) - 1))
 113
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