drivers/net/wireless/mwifiex/sdio.h

   1 /*
   2  * Marvell Wireless LAN device driver: SDIO specific definitions
   3  *
   4  * Copyright (C) 2011, 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  * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
  16  * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
  17  * this warranty disclaimer.
  18  */
  19
  20 #ifndef _MWIFIEX_SDIO_H
  21 #define _MWIFIEX_SDIO_H
  22
  23
  24 #include <linux/mmc/sdio.h>
  25 #include <linux/mmc/sdio_ids.h>
  26 #include <linux/mmc/sdio_func.h>
  27 #include <linux/mmc/card.h>
  28 #include <linux/mmc/host.h>
  29
  30 #include "main.h"
  31
  32 #define SD8786_DEFAULT_FW_NAME "mrvl/sd8786_uapsta.bin"
  33 #define SD8787_DEFAULT_FW_NAME "mrvl/sd8787_uapsta.bin"
  34 #define SD8797_DEFAULT_FW_NAME "mrvl/sd8797_uapsta.bin"
  35
  36 #define BLOCK_MODE      1
  37 #define BYTE_MODE       0
  38
  39 #define REG_PORT                        0
  40 #define RD_BITMAP_L                     0x04
  41 #define RD_BITMAP_U                     0x05
  42 #define WR_BITMAP_L                     0x06
  43 #define WR_BITMAP_U                     0x07
  44 #define RD_LEN_P0_L                     0x08
  45 #define RD_LEN_P0_U                     0x09
  46
  47 #define MWIFIEX_SDIO_IO_PORT_MASK               0xfffff
  48
  49 #define MWIFIEX_SDIO_BYTE_MODE_MASK     0x80000000
  50
  51 #define CTRL_PORT                       0
  52 #define CTRL_PORT_MASK                  0x0001
  53 #define DATA_PORT_MASK                  0xfffe
  54
  55 #define MAX_MP_REGS                     64
  56 #define MAX_PORT                        16
  57
  58 #define SDIO_MP_AGGR_DEF_PKT_LIMIT      8
  59
  60 #define SDIO_MP_TX_AGGR_DEF_BUF_SIZE        (8192)      /* 8K */
  61
  62 /* Multi port RX aggregation buffer size */
  63 #define SDIO_MP_RX_AGGR_DEF_BUF_SIZE        (16384)     /* 16K */
  64
  65 /* Misc. Config Register : Auto Re-enable interrupts */
  66 #define AUTO_RE_ENABLE_INT              BIT(4)
  67
  68 /* Host Control Registers */
  69 /* Host Control Registers : I/O port 0 */
  70 #define IO_PORT_0_REG                   0x78
  71 /* Host Control Registers : I/O port 1 */
  72 #define IO_PORT_1_REG                   0x79
  73 /* Host Control Registers : I/O port 2 */
  74 #define IO_PORT_2_REG                   0x7A
  75
  76 /* Host Control Registers : Configuration */
  77 #define CONFIGURATION_REG               0x00
  78 /* Host Control Registers : Host without Command 53 finish host*/
  79 #define HOST_TO_CARD_EVENT       (0x1U << 3)
  80 /* Host Control Registers : Host without Command 53 finish host */
  81 #define HOST_WO_CMD53_FINISH_HOST       (0x1U << 2)
  82 /* Host Control Registers : Host power up */
  83 #define HOST_POWER_UP                   (0x1U << 1)
  84 /* Host Control Registers : Host power down */
  85 #define HOST_POWER_DOWN                 (0x1U << 0)
  86
  87 /* Host Control Registers : Host interrupt mask */
  88 #define HOST_INT_MASK_REG               0x02
  89 /* Host Control Registers : Upload host interrupt mask */
  90 #define UP_LD_HOST_INT_MASK             (0x1U)
  91 /* Host Control Registers : Download host interrupt mask */
  92 #define DN_LD_HOST_INT_MASK             (0x2U)
  93 /* Enable Host interrupt mask */
  94 #define HOST_INT_ENABLE (UP_LD_HOST_INT_MASK | DN_LD_HOST_INT_MASK)
  95 /* Disable Host interrupt mask */
  96 #define HOST_INT_DISABLE                0xff
  97
  98 /* Host Control Registers : Host interrupt status */
  99 #define HOST_INTSTATUS_REG              0x03
 100 /* Host Control Registers : Upload host interrupt status */
 101 #define UP_LD_HOST_INT_STATUS           (0x1U)
 102 /* Host Control Registers : Download host interrupt status */
 103 #define DN_LD_HOST_INT_STATUS           (0x2U)
 104
 105 /* Host Control Registers : Host interrupt RSR */
 106 #define HOST_INT_RSR_REG                0x01
 107 /* Host Control Registers : Upload host interrupt RSR */
 108 #define UP_LD_HOST_INT_RSR              (0x1U)
 109 #define SDIO_INT_MASK                   0x3F
 110
 111 /* Host Control Registers : Host interrupt status */
 112 #define HOST_INT_STATUS_REG             0x28
 113 /* Host Control Registers : Upload CRC error */
 114 #define UP_LD_CRC_ERR                   (0x1U << 2)
 115 /* Host Control Registers : Upload restart */
 116 #define UP_LD_RESTART                   (0x1U << 1)
 117 /* Host Control Registers : Download restart */
 118 #define DN_LD_RESTART                   (0x1U << 0)
 119
 120 /* Card Control Registers : Card status register */
 121 #define CARD_STATUS_REG                 0x30
 122 /* Card Control Registers : Card I/O ready */
 123 #define CARD_IO_READY                   (0x1U << 3)
 124 /* Card Control Registers : CIS card ready */
 125 #define CIS_CARD_RDY                    (0x1U << 2)
 126 /* Card Control Registers : Upload card ready */
 127 #define UP_LD_CARD_RDY                  (0x1U << 1)
 128 /* Card Control Registers : Download card ready */
 129 #define DN_LD_CARD_RDY                  (0x1U << 0)
 130
 131 /* Card Control Registers : Host interrupt mask register */
 132 #define HOST_INTERRUPT_MASK_REG         0x34
 133 /* Card Control Registers : Host power interrupt mask */
 134 #define HOST_POWER_INT_MASK             (0x1U << 3)
 135 /* Card Control Registers : Abort card interrupt mask */
 136 #define ABORT_CARD_INT_MASK             (0x1U << 2)
 137 /* Card Control Registers : Upload card interrupt mask */
 138 #define UP_LD_CARD_INT_MASK             (0x1U << 1)
 139 /* Card Control Registers : Download card interrupt mask */
 140 #define DN_LD_CARD_INT_MASK             (0x1U << 0)
 141
 142 /* Card Control Registers : Card interrupt status register */
 143 #define CARD_INTERRUPT_STATUS_REG       0x38
 144 /* Card Control Registers : Power up interrupt */
 145 #define POWER_UP_INT                    (0x1U << 4)
 146 /* Card Control Registers : Power down interrupt */
 147 #define POWER_DOWN_INT                  (0x1U << 3)
 148
 149 /* Card Control Registers : Card interrupt RSR register */
 150 #define CARD_INTERRUPT_RSR_REG          0x3c
 151 /* Card Control Registers : Power up RSR */
 152 #define POWER_UP_RSR                    (0x1U << 4)
 153 /* Card Control Registers : Power down RSR */
 154 #define POWER_DOWN_RSR                  (0x1U << 3)
 155
 156 /* Card Control Registers : Miscellaneous Configuration Register */
 157 #define CARD_MISC_CFG_REG               0x6C
 158
 159 /* Host F1 read base 0 */
 160 #define HOST_F1_RD_BASE_0               0x0040
 161 /* Host F1 read base 1 */
 162 #define HOST_F1_RD_BASE_1               0x0041
 163 /* Host F1 card ready */
 164 #define HOST_F1_CARD_RDY                0x0020
 165
 166 /* Firmware status 0 register */
 167 #define CARD_FW_STATUS0_REG             0x60
 168 /* Firmware status 1 register */
 169 #define CARD_FW_STATUS1_REG             0x61
 170 /* Rx length register */
 171 #define CARD_RX_LEN_REG                 0x62
 172 /* Rx unit register */
 173 #define CARD_RX_UNIT_REG                0x63
 174
 175 /* Max retry number of CMD53 write */
 176 #define MAX_WRITE_IOMEM_RETRY           2
 177
 178 /* SDIO Tx aggregation in progress ? */
 179 #define MP_TX_AGGR_IN_PROGRESS(a) (a->mpa_tx.pkt_cnt > 0)
 180
 181 /* SDIO Tx aggregation buffer room for next packet ? */
 182 #define MP_TX_AGGR_BUF_HAS_ROOM(a, len) ((a->mpa_tx.buf_len+len)        \
 183                                                 <= a->mpa_tx.buf_size)
 184
 185 /* Copy current packet (SDIO Tx aggregation buffer) to SDIO buffer */
 186 #define MP_TX_AGGR_BUF_PUT(a, payload, pkt_len, port) do {              \
 187         memmove(&a->mpa_tx.buf[a->mpa_tx.buf_len],                      \
 188                         payload, pkt_len);                              \
 189         a->mpa_tx.buf_len += pkt_len;                                   \
 190         if (!a->mpa_tx.pkt_cnt)                                         \
 191                 a->mpa_tx.start_port = port;                            \
 192         if (a->mpa_tx.start_port <= port)                               \
 193                 a->mpa_tx.ports |= (1<<(a->mpa_tx.pkt_cnt));            \
 194         else                                                            \
 195                 a->mpa_tx.ports |= (1<<(a->mpa_tx.pkt_cnt+1+(MAX_PORT - \
 196                                                 a->mp_end_port)));      \
 197         a->mpa_tx.pkt_cnt++;                                            \
 198 } while (0)
 199
 200 /* SDIO Tx aggregation limit ? */
 201 #define MP_TX_AGGR_PKT_LIMIT_REACHED(a)                                 \
 202                         (a->mpa_tx.pkt_cnt == a->mpa_tx.pkt_aggr_limit)
 203
 204 /* SDIO Tx aggregation port limit ? */
 205 #define MP_TX_AGGR_PORT_LIMIT_REACHED(a) ((a->curr_wr_port <            \
 206                         a->mpa_tx.start_port) && (((MAX_PORT -          \
 207                         a->mpa_tx.start_port) + a->curr_wr_port) >=     \
 208                                 SDIO_MP_AGGR_DEF_PKT_LIMIT))
 209
 210 /* Reset SDIO Tx aggregation buffer parameters */
 211 #define MP_TX_AGGR_BUF_RESET(a) do {                                    \
 212         a->mpa_tx.pkt_cnt = 0;                                          \
 213         a->mpa_tx.buf_len = 0;                                          \
 214         a->mpa_tx.ports = 0;                                            \
 215         a->mpa_tx.start_port = 0;                                       \
 216 } while (0)
 217
 218 /* SDIO Rx aggregation limit ? */
 219 #define MP_RX_AGGR_PKT_LIMIT_REACHED(a)                                 \
 220                         (a->mpa_rx.pkt_cnt == a->mpa_rx.pkt_aggr_limit)
 221
 222 /* SDIO Tx aggregation port limit ? */
 223 #define MP_RX_AGGR_PORT_LIMIT_REACHED(a) ((a->curr_rd_port <            \
 224                         a->mpa_rx.start_port) && (((MAX_PORT -          \
 225                         a->mpa_rx.start_port) + a->curr_rd_port) >=     \
 226                         SDIO_MP_AGGR_DEF_PKT_LIMIT))
 227
 228 /* SDIO Rx aggregation in progress ? */
 229 #define MP_RX_AGGR_IN_PROGRESS(a) (a->mpa_rx.pkt_cnt > 0)
 230
 231 /* SDIO Rx aggregation buffer room for next packet ? */
 232 #define MP_RX_AGGR_BUF_HAS_ROOM(a, rx_len)                              \
 233                         ((a->mpa_rx.buf_len+rx_len) <= a->mpa_rx.buf_size)
 234
 235 /* Prepare to copy current packet from card to SDIO Rx aggregation buffer */
 236 #define MP_RX_AGGR_SETUP(a, skb, port) do {                             \
 237         a->mpa_rx.buf_len += skb->len;                                  \
 238         if (!a->mpa_rx.pkt_cnt)                                         \
 239                 a->mpa_rx.start_port = port;                            \
 240         if (a->mpa_rx.start_port <= port)                               \
 241                 a->mpa_rx.ports |= (1<<(a->mpa_rx.pkt_cnt));            \
 242         else                                                            \
 243                 a->mpa_rx.ports |= (1<<(a->mpa_rx.pkt_cnt+1));          \
 244         a->mpa_rx.skb_arr[a->mpa_rx.pkt_cnt] = skb;                     \
 245         a->mpa_rx.len_arr[a->mpa_rx.pkt_cnt] = skb->len;                \
 246         a->mpa_rx.pkt_cnt++;                                            \
 247 } while (0)
 248
 249 /* Reset SDIO Rx aggregation buffer parameters */
 250 #define MP_RX_AGGR_BUF_RESET(a) do {                                    \
 251         a->mpa_rx.pkt_cnt = 0;                                          \
 252         a->mpa_rx.buf_len = 0;                                          \
 253         a->mpa_rx.ports = 0;                                            \
 254         a->mpa_rx.start_port = 0;                                       \
 255 } while (0)
 256
 257
 258 /* data structure for SDIO MPA TX */
 259 struct mwifiex_sdio_mpa_tx {
 260         /* multiport tx aggregation buffer pointer */
 261         u8 *buf;
 262         u32 buf_len;
 263         u32 pkt_cnt;
 264         u16 ports;
 265         u16 start_port;
 266         u8 enabled;
 267         u32 buf_size;
 268         u32 pkt_aggr_limit;
 269 };
 270
 271 struct mwifiex_sdio_mpa_rx {
 272         u8 *buf;
 273         u32 buf_len;
 274         u32 pkt_cnt;
 275         u16 ports;
 276         u16 start_port;
 277
 278         struct sk_buff *skb_arr[SDIO_MP_AGGR_DEF_PKT_LIMIT];
 279         u32 len_arr[SDIO_MP_AGGR_DEF_PKT_LIMIT];
 280
 281         u8 enabled;
 282         u32 buf_size;
 283         u32 pkt_aggr_limit;
 284 };
 285
 286 int mwifiex_bus_register(void);
 287 void mwifiex_bus_unregister(void);
 288
 289 struct sdio_mmc_card {
 290         struct sdio_func *func;
 291         struct mwifiex_adapter *adapter;
 292
 293         u16 mp_rd_bitmap;
 294         u16 mp_wr_bitmap;
 295
 296         u16 mp_end_port;
 297         u16 mp_data_port_mask;
 298
 299         u8 curr_rd_port;
 300         u8 curr_wr_port;
 301
 302         u8 *mp_regs;
 303
 304         struct mwifiex_sdio_mpa_tx mpa_tx;
 305         struct mwifiex_sdio_mpa_rx mpa_rx;
 306 };
 307
 308 /*
 309  * .cmdrsp_complete handler
 310  */
 311 static inline int mwifiex_sdio_cmdrsp_complete(struct mwifiex_adapter *adapter,
 312                                                struct sk_buff *skb)
 313 {
 314         dev_kfree_skb_any(skb);
 315         return 0;
 316 }
 317
 318 /*
 319  * .event_complete handler
 320  */
 321 static inline int mwifiex_sdio_event_complete(struct mwifiex_adapter *adapter,
 322                                               struct sk_buff *skb)
 323 {
 324         dev_kfree_skb_any(skb);
 325         return 0;
 326 }
 327
 328 #endif /* _MWIFIEX_SDIO_H */