1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * driver for the carrier TEWS TPCI-200
4 *
5 * Copyright (C) 2009-2012 CERN (www.cern.ch)
6 * Author: Nicolas Serafini, EIC2 SA
7 * Author: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
8 */
9
10#ifndef _TPCI200_H_
11#define _TPCI200_H_
12
13#include <linux/limits.h>
14#include <linux/pci.h>
15#include <linux/spinlock.h>
16#include <linux/swab.h>
17#include <linux/io.h>
18#include <linux/ipack.h>
19
20#define TPCI200_NB_SLOT 0x4
21#define TPCI200_NB_BAR 0x6
22
23#define TPCI200_VENDOR_ID 0x1498
24#define TPCI200_DEVICE_ID 0x30C8
25#define TPCI200_SUBVENDOR_ID 0x1498
26#define TPCI200_SUBDEVICE_ID 0x300A
27
28#define TPCI200_CFG_MEM_BAR 0
29#define TPCI200_IP_INTERFACE_BAR 2
30#define TPCI200_IO_ID_INT_SPACES_BAR 3
31#define TPCI200_MEM16_SPACE_BAR 4
32#define TPCI200_MEM8_SPACE_BAR 5
33
34struct tpci200_regs {
35 __le16 revision;
36 /* writes to control should occur with the mutex held to protect
37 * read-modify-write operations */
38 __le16 control[4];
39 __le16 reset;
40 __le16 status;
41 u8 reserved[242];
42} __packed;
43
44#define TPCI200_IFACE_SIZE 0x100
45
46#define TPCI200_IO_SPACE_OFF 0x0000
47#define TPCI200_IO_SPACE_INTERVAL 0x0100
48#define TPCI200_IO_SPACE_SIZE 0x0080
49#define TPCI200_ID_SPACE_OFF 0x0080
50#define TPCI200_ID_SPACE_INTERVAL 0x0100
51#define TPCI200_ID_SPACE_SIZE 0x0040
52#define TPCI200_INT_SPACE_OFF 0x00C0
53#define TPCI200_INT_SPACE_INTERVAL 0x0100
54#define TPCI200_INT_SPACE_SIZE 0x0040
55#define TPCI200_IOIDINT_SIZE 0x0400
56
57#define TPCI200_MEM8_SPACE_INTERVAL 0x00400000
58#define TPCI200_MEM8_SPACE_SIZE 0x00400000
59#define TPCI200_MEM16_SPACE_INTERVAL 0x00800000
60#define TPCI200_MEM16_SPACE_SIZE 0x00800000
61
62/* control field in tpci200_regs */
63#define TPCI200_INT0_EN 0x0040
64#define TPCI200_INT1_EN 0x0080
65#define TPCI200_INT0_EDGE 0x0010
66#define TPCI200_INT1_EDGE 0x0020
67#define TPCI200_ERR_INT_EN 0x0008
68#define TPCI200_TIME_INT_EN 0x0004
69#define TPCI200_RECOVER_EN 0x0002
70#define TPCI200_CLK32 0x0001
71
72/* reset field in tpci200_regs */
73#define TPCI200_A_RESET 0x0001
74#define TPCI200_B_RESET 0x0002
75#define TPCI200_C_RESET 0x0004
76#define TPCI200_D_RESET 0x0008
77
78/* status field in tpci200_regs */
79#define TPCI200_A_TIMEOUT 0x1000
80#define TPCI200_B_TIMEOUT 0x2000
81#define TPCI200_C_TIMEOUT 0x4000
82#define TPCI200_D_TIMEOUT 0x8000
83
84#define TPCI200_A_ERROR 0x0100
85#define TPCI200_B_ERROR 0x0200
86#define TPCI200_C_ERROR 0x0400
87#define TPCI200_D_ERROR 0x0800
88
89#define TPCI200_A_INT0 0x0001
90#define TPCI200_A_INT1 0x0002
91#define TPCI200_B_INT0 0x0004
92#define TPCI200_B_INT1 0x0008
93#define TPCI200_C_INT0 0x0010
94#define TPCI200_C_INT1 0x0020
95#define TPCI200_D_INT0 0x0040
96#define TPCI200_D_INT1 0x0080
97
98#define TPCI200_SLOT_INT_MASK 0x00FF
99
100/* PCI Configuration registers. The PCI bridge is a PLX Technology PCI9030. */
101#define LAS1_DESC 0x2C
102#define LAS2_DESC 0x30
103
104/* Bits in the LAS?_DESC registers */
105#define LAS_BIT_BIGENDIAN 24
106
107#define VME_IOID_SPACE "IOID"
108#define VME_MEM_SPACE "MEM"
109
110/**
111 * struct slot_irq - slot IRQ definition.
112 * @vector Vector number
113 * @handler Handler called when IRQ arrives
114 * @arg Handler argument
115 *
116 */
117struct slot_irq {
118 struct ipack_device *holder;
119 int vector;
120 irqreturn_t (*handler)(void *);
121 void *arg;
122};
123
124/**
125 * struct tpci200_slot - data specific to the tpci200 slot.
126 * @slot_id Slot identification gived to external interface
127 * @irq Slot IRQ infos
128 * @io_phys IO physical base address register of the slot
129 * @id_phys ID physical base address register of the slot
130 * @int_phys INT physical base address register of the slot
131 * @mem_phys MEM physical base address register of the slot
132 *
133 */
134struct tpci200_slot {
135 struct slot_irq *irq;
136};
137
138/**
139 * struct tpci200_infos - informations specific of the TPCI200 tpci200.
140 * @pci_dev PCI device
141 * @interface_regs Pointer to IP interface space (Bar 2)
142 * @ioidint_space Pointer to IP ID, IO and INT space (Bar 3)
143 * @mem8_space Pointer to MEM space (Bar 4)
144 *
145 */
146struct tpci200_infos {
147 struct pci_dev *pdev;
148 struct pci_device_id *id_table;
149 struct tpci200_regs __iomem *interface_regs;
150 void __iomem *cfg_regs;
151 struct ipack_bus_device *ipack_bus;
152};
153struct tpci200_board {
154 unsigned int number;
155 struct mutex mutex;
156 spinlock_t regs_lock;
157 struct tpci200_slot *slots;
158 struct tpci200_infos *info;
159 phys_addr_t mod_mem[IPACK_SPACE_COUNT];
160};
161
162#endif /* _TPCI200_H_ */
163

source code of linux/drivers/ipack/carriers/tpci200.h