drivers/ipack/carriers/tpci200.h

   1 /**
   2  * tpci200.h
   3  *
   4  * driver for the carrier TEWS TPCI-200
   5  *
   6  * Copyright (C) 2009-2012 CERN (www.cern.ch)
   7  * Author: Nicolas Serafini, EIC2 SA
   8  * Author: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
   9  *
  10  * This program is free software; you can redistribute it and/or modify it
  11  * under the terms of the GNU General Public License as published by the Free
  12  * Software Foundation; version 2 of the License.
  13  */
  14
  15 #ifndef _TPCI200_H_
  16 #define _TPCI200_H_
  17
  18 #include <linux/limits.h>
  19 #include <linux/pci.h>
  20 #include <linux/spinlock.h>
  21 #include <linux/swab.h>
  22 #include <linux/io.h>
  23 #include <linux/ipack.h>
  24
  25 #define TPCI200_NB_SLOT               0x4
  26 #define TPCI200_NB_BAR                0x6
  27
  28 #define TPCI200_VENDOR_ID             0x1498
  29 #define TPCI200_DEVICE_ID             0x30C8
  30 #define TPCI200_SUBVENDOR_ID          0x1498
  31 #define TPCI200_SUBDEVICE_ID          0x300A
  32
  33 #define TPCI200_CFG_MEM_BAR           0
  34 #define TPCI200_IP_INTERFACE_BAR      2
  35 #define TPCI200_IO_ID_INT_SPACES_BAR  3
  36 #define TPCI200_MEM16_SPACE_BAR       4
  37 #define TPCI200_MEM8_SPACE_BAR        5
  38
  39 struct tpci200_regs {
  40         __le16  revision;
  41         /* writes to control should occur with the mutex held to protect
  42          * read-modify-write operations */
  43         __le16  control[4];
  44         __le16  reset;
  45         __le16  status;
  46         u8      reserved[242];
  47 } __packed;
  48
  49 #define TPCI200_IFACE_SIZE            0x100
  50
  51 #define TPCI200_IO_SPACE_OFF          0x0000
  52 #define TPCI200_IO_SPACE_INTERVAL     0x0100
  53 #define TPCI200_IO_SPACE_SIZE         0x0080
  54 #define TPCI200_ID_SPACE_OFF          0x0080
  55 #define TPCI200_ID_SPACE_INTERVAL     0x0100
  56 #define TPCI200_ID_SPACE_SIZE         0x0040
  57 #define TPCI200_INT_SPACE_OFF         0x00C0
  58 #define TPCI200_INT_SPACE_INTERVAL    0x0100
  59 #define TPCI200_INT_SPACE_SIZE        0x0040
  60 #define TPCI200_IOIDINT_SIZE          0x0400
  61
  62 #define TPCI200_MEM8_SPACE_INTERVAL   0x00400000
  63 #define TPCI200_MEM8_SPACE_SIZE       0x00400000
  64 #define TPCI200_MEM16_SPACE_INTERVAL  0x00800000
  65 #define TPCI200_MEM16_SPACE_SIZE      0x00800000
  66
  67 /* control field in tpci200_regs */
  68 #define TPCI200_INT0_EN               0x0040
  69 #define TPCI200_INT1_EN               0x0080
  70 #define TPCI200_INT0_EDGE             0x0010
  71 #define TPCI200_INT1_EDGE             0x0020
  72 #define TPCI200_ERR_INT_EN            0x0008
  73 #define TPCI200_TIME_INT_EN           0x0004
  74 #define TPCI200_RECOVER_EN            0x0002
  75 #define TPCI200_CLK32                 0x0001
  76
  77 /* reset field in tpci200_regs */
  78 #define TPCI200_A_RESET               0x0001
  79 #define TPCI200_B_RESET               0x0002
  80 #define TPCI200_C_RESET               0x0004
  81 #define TPCI200_D_RESET               0x0008
  82
  83 /* status field in tpci200_regs */
  84 #define TPCI200_A_TIMEOUT             0x1000
  85 #define TPCI200_B_TIMEOUT             0x2000
  86 #define TPCI200_C_TIMEOUT             0x4000
  87 #define TPCI200_D_TIMEOUT             0x8000
  88
  89 #define TPCI200_A_ERROR               0x0100
  90 #define TPCI200_B_ERROR               0x0200
  91 #define TPCI200_C_ERROR               0x0400
  92 #define TPCI200_D_ERROR               0x0800
  93
  94 #define TPCI200_A_INT0                0x0001
  95 #define TPCI200_A_INT1                0x0002
  96 #define TPCI200_B_INT0                0x0004
  97 #define TPCI200_B_INT1                0x0008
  98 #define TPCI200_C_INT0                0x0010
  99 #define TPCI200_C_INT1                0x0020
 100 #define TPCI200_D_INT0                0x0040
 101 #define TPCI200_D_INT1                0x0080
 102
 103 #define TPCI200_SLOT_INT_MASK         0x00FF
 104
 105 /* PCI Configuration registers. The PCI bridge is a PLX Technology PCI9030. */
 106 #define LAS1_DESC                     0x2C
 107 #define LAS2_DESC                     0x30
 108
 109 /* Bits in the LAS?_DESC registers */
 110 #define LAS_BIT_BIGENDIAN             24
 111
 112 #define VME_IOID_SPACE  "IOID"
 113 #define VME_MEM_SPACE  "MEM"
 114
 115 /**
 116  * struct slot_irq - slot IRQ definition.
 117  * @vector      Vector number
 118  * @handler     Handler called when IRQ arrives
 119  * @arg         Handler argument
 120  *
 121  */
 122 struct slot_irq {
 123         struct ipack_device *holder;
 124         int             vector;
 125         irqreturn_t     (*handler)(void *);
 126         void            *arg;
 127 };
 128
 129 /**
 130  * struct tpci200_slot - data specific to the tpci200 slot.
 131  * @slot_id     Slot identification gived to external interface
 132  * @irq         Slot IRQ infos
 133  * @io_phys     IO physical base address register of the slot
 134  * @id_phys     ID physical base address register of the slot
 135  * @int_phys    INT physical base address register of the slot
 136  * @mem_phys    MEM physical base address register of the slot
 137  *
 138  */
 139 struct tpci200_slot {
 140         struct slot_irq     *irq;
 141 };
 142
 143 /**
 144  * struct tpci200_infos - informations specific of the TPCI200 tpci200.
 145  * @pci_dev             PCI device
 146  * @interface_regs      Pointer to IP interface space (Bar 2)
 147  * @ioidint_space       Pointer to IP ID, IO and INT space (Bar 3)
 148  * @mem8_space          Pointer to MEM space (Bar 4)
 149  *
 150  */
 151 struct tpci200_infos {
 152         struct pci_dev                  *pdev;
 153         struct pci_device_id            *id_table;
 154         struct tpci200_regs __iomem     *interface_regs;
 155         void __iomem                    *cfg_regs;
 156         struct ipack_bus_device         *ipack_bus;
 157 };
 158 struct tpci200_board {
 159         unsigned int            number;
 160         struct mutex            mutex;
 161         spinlock_t              regs_lock;
 162         struct tpci200_slot     *slots;
 163         struct tpci200_infos    *info;
 164         phys_addr_t             mod_mem[IPACK_SPACE_COUNT];
 165 };
 166
 167 #endif /* _TPCI200_H_ */