drivers/net/irda/smsc-ircc2.h

   1 /*********************************************************************
   2  *
   3  * Description:   Definitions for the SMC IrCC chipset
   4  * Status:        Experimental.
   5  * Author:        Daniele Peri (peri@csai.unipa.it)
   6  *
   7  *     Copyright (c) 2002      Daniele Peri
   8  *     All Rights Reserved.
   9  *
  10  * Based on smc-ircc.h:
  11  *
  12  *     Copyright (c) 1999-2000, Dag Brattli <dagb@cs.uit.no>
  13  *     Copyright (c) 1998-1999, Thomas Davis (tadavis@jps.net>
  14  *     All Rights Reserved
  15  *
  16  *
  17  *     This program is free software; you can redistribute it and/or
  18  *     modify it under the terms of the GNU General Public License as
  19  *     published by the Free Software Foundation; either version 2 of
  20  *     the License, or (at your option) any later version.
  21  *
  22  *     This program is distributed in the hope that it will be useful,
  23  *     but WITHOUT ANY WARRANTY; without even the implied warranty of
  24  *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  25  *     GNU General Public License for more details.
  26  *
  27  *     You should have received a copy of the GNU General Public License
  28  *     along with this program; if not, see <http://www.gnu.org/licenses/>.
  29  *
  30  ********************************************************************/
  31
  32 #ifndef SMSC_IRCC2_H
  33 #define SMSC_IRCC2_H
  34
  35 /* DMA modes needed */
  36 #define DMA_TX_MODE                0x08    /* Mem to I/O, ++, demand. */
  37 #define DMA_RX_MODE                0x04    /* I/O to mem, ++, demand. */
  38
  39 /* Master Control Register */
  40 #define IRCC_MASTER                0x07
  41 #define   IRCC_MASTER_POWERDOWN    0x80
  42 #define   IRCC_MASTER_RESET        0x40
  43 #define   IRCC_MASTER_INT_EN       0x20
  44 #define   IRCC_MASTER_ERROR_RESET  0x10
  45
  46 /* Register block 0 */
  47
  48 /* Interrupt Identification */
  49 #define IRCC_IIR                                        0x01
  50 #define   IRCC_IIR_ACTIVE_FRAME         0x80
  51 #define   IRCC_IIR_EOM                          0x40
  52 #define   IRCC_IIR_RAW_MODE                     0x20
  53 #define   IRCC_IIR_FIFO                         0x10
  54
  55 /* Interrupt Enable */
  56 #define IRCC_IER                                        0x02
  57 #define   IRCC_IER_ACTIVE_FRAME         0x80
  58 #define   IRCC_IER_EOM                          0x40
  59 #define   IRCC_IER_RAW_MODE                     0x20
  60 #define   IRCC_IER_FIFO                         0x10
  61
  62 /* Line Status Register */
  63 #define IRCC_LSR                                        0x03
  64 #define   IRCC_LSR_UNDERRUN                     0x80
  65 #define   IRCC_LSR_OVERRUN                      0x40
  66 #define   IRCC_LSR_FRAME_ERROR          0x20
  67 #define   IRCC_LSR_SIZE_ERROR           0x10
  68 #define   IRCC_LSR_CRC_ERROR            0x80
  69 #define   IRCC_LSR_FRAME_ABORT          0x40
  70
  71 /* Line Status Address Register */
  72 #define IRCC_LSAR                                       0x03
  73 #define IRCC_LSAR_ADDRESS_MASK          0x07
  74
  75 /* Line Control Register A */
  76 #define IRCC_LCR_A                 0x04
  77 #define   IRCC_LCR_A_FIFO_RESET    0x80
  78 #define   IRCC_LCR_A_FAST          0x40
  79 #define   IRCC_LCR_A_GP_DATA       0x20
  80 #define   IRCC_LCR_A_RAW_TX        0x10
  81 #define   IRCC_LCR_A_RAW_RX        0x08
  82 #define   IRCC_LCR_A_ABORT         0x04
  83 #define   IRCC_LCR_A_DATA_DONE     0x02
  84
  85 /* Line Control Register B */
  86 #define IRCC_LCR_B                 0x05
  87 #define   IRCC_LCR_B_SCE_DISABLED  0x00
  88 #define   IRCC_LCR_B_SCE_TRANSMIT  0x40
  89 #define   IRCC_LCR_B_SCE_RECEIVE   0x80
  90 #define   IRCC_LCR_B_SCE_UNDEFINED 0xc0
  91 #define   IRCC_LCR_B_SIP_ENABLE    0x20
  92 #define   IRCC_LCR_B_BRICK_WALL    0x10
  93
  94 /* Bus Status Register */
  95 #define IRCC_BSR                   0x06
  96 #define   IRCC_BSR_NOT_EMPTY       0x80
  97 #define   IRCC_BSR_FIFO_FULL       0x40
  98 #define   IRCC_BSR_TIMEOUT         0x20
  99
 100 /* Register block 1 */
 101
 102 #define IRCC_FIFO_THRESHOLD                     0x02
 103
 104 #define IRCC_SCE_CFGA                           0x00
 105 #define   IRCC_CFGA_AUX_IR                      0x80
 106 #define   IRCC_CFGA_HALF_DUPLEX         0x04
 107 #define   IRCC_CFGA_TX_POLARITY         0x02
 108 #define   IRCC_CFGA_RX_POLARITY         0x01
 109
 110 #define   IRCC_CFGA_COM                         0x00
 111 #define         IRCC_SCE_CFGA_BLOCK_CTRL_BITS_MASK      0x87
 112 #define         IRCC_CFGA_IRDA_SIR_A    0x08
 113 #define         IRCC_CFGA_ASK_SIR               0x10
 114 #define         IRCC_CFGA_IRDA_SIR_B    0x18
 115 #define         IRCC_CFGA_IRDA_HDLC             0x20
 116 #define         IRCC_CFGA_IRDA_4PPM             0x28
 117 #define         IRCC_CFGA_CONSUMER              0x30
 118 #define         IRCC_CFGA_RAW_IR                0x38
 119 #define     IRCC_CFGA_OTHER                     0x40
 120
 121 #define IRCC_IR_HDLC               0x04
 122 #define IRCC_IR_4PPM               0x01
 123 #define IRCC_IR_CONSUMER           0x02
 124
 125 #define IRCC_SCE_CFGB              0x01
 126 #define IRCC_CFGB_LOOPBACK         0x20
 127 #define IRCC_CFGB_LPBCK_TX_CRC     0x10
 128 #define IRCC_CFGB_NOWAIT           0x08
 129 #define IRCC_CFGB_STRING_MOVE      0x04
 130 #define IRCC_CFGB_DMA_BURST        0x02
 131 #define IRCC_CFGB_DMA_ENABLE       0x01
 132
 133 #define IRCC_CFGB_MUX_COM          0x00
 134 #define IRCC_CFGB_MUX_IR           0x40
 135 #define IRCC_CFGB_MUX_AUX          0x80
 136 #define IRCC_CFGB_MUX_INACTIVE     0xc0
 137
 138 /* Register block 3 - Identification Registers! */
 139 #define IRCC_ID_HIGH               0x00   /* 0x10 */
 140 #define IRCC_ID_LOW                0x01   /* 0xB8 */
 141 #define IRCC_CHIP_ID               0x02   /* 0xF1 */
 142 #define IRCC_VERSION               0x03   /* 0x01 */
 143 #define IRCC_INTERFACE             0x04   /* low 4 = DMA, high 4 = IRQ */
 144 #define         IRCC_INTERFACE_DMA_MASK 0x0F   /* low 4 = DMA, high 4 = IRQ */
 145 #define         IRCC_INTERFACE_IRQ_MASK 0xF0   /* low 4 = DMA, high 4 = IRQ */
 146
 147 /* Register block 4 - IrDA */
 148 #define IRCC_CONTROL               0x00
 149 #define IRCC_BOF_COUNT_LO          0x01 /* Low byte */
 150 #define IRCC_BOF_COUNT_HI          0x00 /* High nibble (bit 0-3) */
 151 #define IRCC_BRICKWALL_CNT_LO      0x02 /* Low byte */
 152 #define IRCC_BRICKWALL_CNT_HI      0x03 /* High nibble (bit 4-7) */
 153 #define IRCC_TX_SIZE_LO            0x04 /* Low byte */
 154 #define IRCC_TX_SIZE_HI            0x03 /* High nibble (bit 0-3) */
 155 #define IRCC_RX_SIZE_HI            0x05 /* High nibble (bit 0-3) */
 156 #define IRCC_RX_SIZE_LO            0x06 /* Low byte */
 157
 158 #define IRCC_1152                  0x80
 159 #define IRCC_CRC                   0x40
 160
 161 /* Register block 5 - IrDA */
 162 #define IRCC_ATC                                        0x00
 163 #define         IRCC_ATC_nPROGREADY             0x80
 164 #define         IRCC_ATC_SPEED                  0x40
 165 #define         IRCC_ATC_ENABLE                 0x20
 166 #define         IRCC_ATC_MASK                   0xE0
 167
 168
 169 #define IRCC_IRHALFDUPLEX_TIMEOUT       0x01
 170
 171 #define IRCC_SCE_TX_DELAY_TIMER         0x02
 172
 173 /*
 174  * Other definitions
 175  */
 176
 177 #define SMSC_IRCC2_MAX_SIR_SPEED                115200
 178 #define SMSC_IRCC2_FIR_CHIP_IO_EXTENT   8
 179 #define SMSC_IRCC2_SIR_CHIP_IO_EXTENT   8
 180 #define SMSC_IRCC2_FIFO_SIZE                    16
 181 #define SMSC_IRCC2_FIFO_THRESHOLD               64
 182 /* Max DMA buffer size needed = (data_size + 6) * (window_size) + 6; */
 183 #define SMSC_IRCC2_RX_BUFF_TRUESIZE             14384
 184 #define SMSC_IRCC2_TX_BUFF_TRUESIZE             14384
 185 #define SMSC_IRCC2_MIN_TURN_TIME                0x07
 186 #define SMSC_IRCC2_WINDOW_SIZE                  0x07
 187 /* Maximum wait for hw transmitter to finish */
 188 #define SMSC_IRCC2_HW_TRANSMITTER_TIMEOUT_US    1000    /* 1 ms */
 189 /* Maximum wait for ATC transceiver programming to finish */
 190 #define SMSC_IRCC2_ATC_PROGRAMMING_TIMEOUT_JIFFIES 1
 191 #endif /* SMSC_IRCC2_H */