LXR linux/drivers/tty/serial/icom.h

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * icom.h
   4 *
   5 * Copyright (C) 2001 Michael Anderson, IBM Corporation
   6 *
   7 * Serial device driver include file.
   8 */
   9
  10#include <linux/serial_core.h>
  11
  12#define BAUD_TABLE_LIMIT        ((sizeof(icom_acfg_baud)/sizeof(int)) - 1)
  13static int icom_acfg_baud[] = {
  14        300,
  15        600,
  16        900,
  17        1200,
  18        1800,
  19        2400,
  20        3600,
  21        4800,
  22        7200,
  23        9600,
  24        14400,
  25        19200,
  26        28800,
  27        38400,
  28        57600,
  29        76800,
  30        115200,
  31        153600,
  32        230400,
  33        307200,
  34        460800,
  35};
  36
  37struct icom_regs {
  38        u32 control;            /* Adapter Control Register     */
  39        u32 interrupt;          /* Adapter Interrupt Register   */
  40        u32 int_mask;           /* Adapter Interrupt Mask Reg   */
  41        u32 int_pri;            /* Adapter Interrupt Priority r */
  42        u32 int_reg_b;          /* Adapter non-masked Interrupt */
  43        u32 resvd01;
  44        u32 resvd02;
  45        u32 resvd03;
  46        u32 control_2;          /* Adapter Control Register 2   */
  47        u32 interrupt_2;        /* Adapter Interrupt Register 2 */
  48        u32 int_mask_2;         /* Adapter Interrupt Mask 2     */
  49        u32 int_pri_2;          /* Adapter Interrupt Prior 2    */
  50        u32 int_reg_2b;         /* Adapter non-masked 2         */
  51};
  52
  53struct func_dram {
  54        u32 reserved[108];      /* 0-1B0   reserved by personality code */
  55        u32 RcvStatusAddr;      /* 1B0-1B3 Status Address for Next rcv */
  56        u8 RcvStnAddr;          /* 1B4     Receive Station Addr */
  57        u8 IdleState;           /* 1B5     Idle State */
  58        u8 IdleMonitor;         /* 1B6     Idle Monitor */
  59        u8 FlagFillIdleTimer;   /* 1B7     Flag Fill Idle Timer */
  60        u32 XmitStatusAddr;     /* 1B8-1BB Transmit Status Address */
  61        u8 StartXmitCmd;        /* 1BC     Start Xmit Command */
  62        u8 HDLCConfigReg;       /* 1BD     Reserved */
  63        u8 CauseCode;           /* 1BE     Cause code for fatal error */
  64        u8 xchar;               /* 1BF     High priority send */
  65        u32 reserved3;          /* 1C0-1C3 Reserved */
  66        u8 PrevCmdReg;          /* 1C4     Reserved */
  67        u8 CmdReg;              /* 1C5     Command Register */
  68        u8 async_config2;       /* 1C6     Async Config Byte 2 */
  69        u8 async_config3;       /* 1C7     Async Config Byte 3 */
  70        u8 dce_resvd[20];       /* 1C8-1DB DCE Rsvd           */
  71        u8 dce_resvd21;         /* 1DC     DCE Rsvd (21st byte */
  72        u8 misc_flags;          /* 1DD     misc flags         */
  73#define V2_HARDWARE     0x40
  74#define ICOM_HDW_ACTIVE 0x01
  75        u8 call_length;         /* 1DE     Phone #/CFI buff ln */
  76        u8 call_length2;        /* 1DF     Upper byte (unused) */
  77        u32 call_addr;          /* 1E0-1E3 Phn #/CFI buff addr */
  78        u16 timer_value;        /* 1E4-1E5 general timer value */
  79        u8 timer_command;       /* 1E6     general timer cmd  */
  80        u8 dce_command;         /* 1E7     dce command reg    */
  81        u8 dce_cmd_status;      /* 1E8     dce command stat   */
  82        u8 x21_r1_ioff;         /* 1E9     dce ready counter  */
  83        u8 x21_r0_ioff;         /* 1EA     dce not ready ctr  */
  84        u8 x21_ralt_ioff;       /* 1EB     dce CNR counter    */
  85        u8 x21_r1_ion;          /* 1EC     dce ready I on ctr */
  86        u8 rsvd_ier;            /* 1ED     Rsvd for IER (if ne */
  87        u8 ier;                 /* 1EE     Interrupt Enable   */
  88        u8 isr;                 /* 1EF     Input Signal Reg   */
  89        u8 osr;                 /* 1F0     Output Signal Reg  */
  90        u8 reset;               /* 1F1     Reset/Reload Reg   */
  91        u8 disable;             /* 1F2     Disable Reg        */
  92        u8 sync;                /* 1F3     Sync Reg           */
  93        u8 error_stat;          /* 1F4     Error Status       */
  94        u8 cable_id;            /* 1F5     Cable ID           */
  95        u8 cs_length;           /* 1F6     CS Load Length     */
  96        u8 mac_length;          /* 1F7     Mac Load Length    */
  97        u32 cs_load_addr;       /* 1F8-1FB Call Load PCI Addr */
  98        u32 mac_load_addr;      /* 1FC-1FF Mac Load PCI Addr  */
  99};
 100
 101/*
 102 * adapter defines and structures
 103 */
 104#define ICOM_CONTROL_START_A         0x00000008
 105#define ICOM_CONTROL_STOP_A          0x00000004
 106#define ICOM_CONTROL_START_B         0x00000002
 107#define ICOM_CONTROL_STOP_B          0x00000001
 108#define ICOM_CONTROL_START_C         0x00000008
 109#define ICOM_CONTROL_STOP_C          0x00000004
 110#define ICOM_CONTROL_START_D         0x00000002
 111#define ICOM_CONTROL_STOP_D          0x00000001
 112#define ICOM_IRAM_OFFSET             0x1000
 113#define ICOM_IRAM_SIZE               0x0C00
 114#define ICOM_DCE_IRAM_OFFSET         0x0A00
 115#define ICOM_CABLE_ID_VALID          0x01
 116#define ICOM_CABLE_ID_MASK           0xF0
 117#define ICOM_DISABLE                 0x80
 118#define CMD_XMIT_RCV_ENABLE          0xC0
 119#define CMD_XMIT_ENABLE              0x40
 120#define CMD_RCV_DISABLE              0x00
 121#define CMD_RCV_ENABLE               0x80
 122#define CMD_RESTART                  0x01
 123#define CMD_HOLD_XMIT                0x02
 124#define CMD_SND_BREAK                0x04
 125#define RS232_CABLE                  0x06
 126#define V24_CABLE                    0x0E
 127#define V35_CABLE                    0x0C
 128#define V36_CABLE                    0x02
 129#define NO_CABLE                     0x00
 130#define START_DOWNLOAD               0x80
 131#define ICOM_INT_MASK_PRC_A          0x00003FFF
 132#define ICOM_INT_MASK_PRC_B          0x3FFF0000
 133#define ICOM_INT_MASK_PRC_C          0x00003FFF
 134#define ICOM_INT_MASK_PRC_D          0x3FFF0000
 135#define INT_RCV_COMPLETED            0x1000
 136#define INT_XMIT_COMPLETED           0x2000
 137#define INT_IDLE_DETECT              0x0800
 138#define INT_RCV_DISABLED             0x0400
 139#define INT_XMIT_DISABLED            0x0200
 140#define INT_RCV_XMIT_SHUTDOWN        0x0100
 141#define INT_FATAL_ERROR              0x0080
 142#define INT_CABLE_PULL               0x0020
 143#define INT_SIGNAL_CHANGE            0x0010
 144#define HDLC_PPP_PURE_ASYNC          0x02
 145#define HDLC_FF_FILL                 0x00
 146#define HDLC_HDW_FLOW                0x01
 147#define START_XMIT                   0x80
 148#define ICOM_ACFG_DRIVE1             0x20
 149#define ICOM_ACFG_NO_PARITY          0x00
 150#define ICOM_ACFG_PARITY_ENAB        0x02
 151#define ICOM_ACFG_PARITY_ODD         0x01
 152#define ICOM_ACFG_8BPC               0x00
 153#define ICOM_ACFG_7BPC               0x04
 154#define ICOM_ACFG_6BPC               0x08
 155#define ICOM_ACFG_5BPC               0x0C
 156#define ICOM_ACFG_1STOP_BIT          0x00
 157#define ICOM_ACFG_2STOP_BIT          0x10
 158#define ICOM_DTR                     0x80
 159#define ICOM_RTS                     0x40
 160#define ICOM_RI                      0x08
 161#define ICOM_DSR                     0x80
 162#define ICOM_DCD                     0x20
 163#define ICOM_CTS                     0x40
 164
 165#define NUM_XBUFFS 1
 166#define NUM_RBUFFS 2
 167#define RCV_BUFF_SZ 0x0200
 168#define XMIT_BUFF_SZ 0x1000
 169struct statusArea {
 170    /**********************************************/
 171        /* Transmit Status Area                       */
 172    /**********************************************/
 173        struct xmit_status_area{
 174                u32 leNext;     /* Next entry in Little Endian on Adapter */
 175                u32 leNextASD;
 176                u32 leBuffer;   /* Buffer for entry in LE for Adapter */
 177                u16 leLengthASD;
 178                u16 leOffsetASD;
 179                u16 leLength;   /* Length of data in segment */
 180                u16 flags;
 181#define SA_FLAGS_DONE           0x0080  /* Done with Segment */
 182#define SA_FLAGS_CONTINUED      0x8000  /* More Segments */
 183#define SA_FLAGS_IDLE           0x4000  /* Mark IDLE after frm */
 184#define SA_FLAGS_READY_TO_XMIT  0x0800
 185#define SA_FLAGS_STAT_MASK      0x007F
 186        } xmit[NUM_XBUFFS];
 187
 188    /**********************************************/
 189        /* Receive Status Area                        */
 190    /**********************************************/
 191        struct {
 192                u32 leNext;     /* Next entry in Little Endian on Adapter */
 193                u32 leNextASD;
 194                u32 leBuffer;   /* Buffer for entry in LE for Adapter */
 195                u16 WorkingLength;      /* size of segment */
 196                u16 reserv01;
 197                u16 leLength;   /* Length of data in segment */
 198                u16 flags;
 199#define SA_FL_RCV_DONE           0x0010 /* Data ready */
 200#define SA_FLAGS_OVERRUN         0x0040
 201#define SA_FLAGS_PARITY_ERROR    0x0080
 202#define SA_FLAGS_FRAME_ERROR     0x0001
 203#define SA_FLAGS_FRAME_TRUNC     0x0002
 204#define SA_FLAGS_BREAK_DET       0x0004 /* set conditionally by device driver, not hardware */
 205#define SA_FLAGS_RCV_MASK        0xFFE6
 206        } rcv[NUM_RBUFFS];
 207};
 208
 209struct icom_adapter;
 210
 211
 212#define ICOM_MAJOR       243
 213#define ICOM_MINOR_START 0
 214
 215struct icom_port {
 216        struct uart_port uart_port;
 217        u8 imbed_modem;
 218#define ICOM_UNKNOWN            1
 219#define ICOM_RVX                2
 220#define ICOM_IMBED_MODEM        3
 221        unsigned char cable_id;
 222        unsigned char read_status_mask;
 223        unsigned char ignore_status_mask;
 224        void __iomem * int_reg;
 225        struct icom_regs __iomem *global_reg;
 226        struct func_dram __iomem *dram;
 227        int port;
 228        struct statusArea *statStg;
 229        dma_addr_t statStg_pci;
 230        u32 *xmitRestart;
 231        dma_addr_t xmitRestart_pci;
 232        unsigned char *xmit_buf;
 233        dma_addr_t xmit_buf_pci;
 234        unsigned char *recv_buf;
 235        dma_addr_t recv_buf_pci;
 236        int next_rcv;
 237        int put_length;
 238        int status;
 239#define ICOM_PORT_ACTIVE        1       /* Port exists. */
 240#define ICOM_PORT_OFF           0       /* Port does not exist. */
 241        int load_in_progress;
 242        struct icom_adapter *adapter;
 243};
 244
 245struct icom_adapter {
 246        void __iomem * base_addr;
 247        unsigned long base_addr_pci;
 248        struct pci_dev *pci_dev;
 249        struct icom_port port_info[4];
 250        int index;
 251        int version;
 252#define ADAPTER_V1      0x0001
 253#define ADAPTER_V2      0x0002
 254        u32 subsystem_id;
 255#define FOUR_PORT_MODEL                         0x0252
 256#define V2_TWO_PORTS_RVX                        0x021A
 257#define V2_ONE_PORT_RVX_ONE_PORT_IMBED_MDM      0x0251
 258        int numb_ports;
 259        struct list_head icom_adapter_entry;
 260        struct kref kref;
 261};
 262
 263/* prototype */
 264extern void iCom_sercons_init(void);
 265
 266struct lookup_proc_table {
 267        u32     __iomem *global_control_reg;
 268        unsigned long   processor_id;
 269};
 270
 271struct lookup_int_table {
 272        u32     __iomem *global_int_mask;
 273        unsigned long   processor_id;
 274};
 275