1 /* SPDX-License-Identifier: GPL-2.0 */ 1
2 /*
3 * Turris Mox module configuration bus driver
4 *
5 * Copyright (C) 2019 Marek Behún <kabel@kern
6 */
7
8 #ifndef __LINUX_MOXTET_H
9 #define __LINUX_MOXTET_H
10
11 #include <linux/device.h>
12 #include <linux/irq.h>
13 #include <linux/irqdomain.h>
14 #include <linux/mutex.h>
15
16 #define TURRIS_MOX_MAX_MODULES 10
17
18 enum turris_mox_cpu_module_id {
19 TURRIS_MOX_CPU_ID_EMMC = 0x00,
20 TURRIS_MOX_CPU_ID_SD = 0x10,
21 };
22
23 enum turris_mox_module_id {
24 TURRIS_MOX_MODULE_FIRST = 0x01
25
26 TURRIS_MOX_MODULE_SFP = 0x01
27 TURRIS_MOX_MODULE_PCI = 0x02
28 TURRIS_MOX_MODULE_TOPAZ = 0x03
29 TURRIS_MOX_MODULE_PERIDOT = 0x04
30 TURRIS_MOX_MODULE_USB3 = 0x05
31 TURRIS_MOX_MODULE_PCI_BRIDGE = 0x06
32
33 TURRIS_MOX_MODULE_LAST = 0x06
34 };
35
36 #define MOXTET_NIRQS 16
37
38 struct moxtet {
39 struct device *dev;
40 struct mutex lock;
41 u8 module
42 int count;
43 u8 tx[TUR
44 int dev_ir
45 struct {
46 struct irq_domain *domai
47 struct irq_chip chip;
48 unsigned long masked
49 struct moxtet_irqpos {
50 u8 idx
51 u8 bit
52 } position[MOXTET_NIRQS];
53 } irq;
54 #ifdef CONFIG_DEBUG_FS
55 struct dentry *debug
56 #endif
57 };
58
59 struct moxtet_driver {
60 const enum turris_mox_module_id *id_ta
61 struct device_driver driver
62 };
63
64 #define to_moxtet_driver(__drv) \
65 ( __drv ? container_of_const(__drv, st
66
67 extern int __moxtet_register_driver(struct mod
68 struct mox
69
70 static inline void moxtet_unregister_driver(st
71 {
72 if (mdrv)
73 driver_unregister(&mdrv->drive
74 }
75
76 #define moxtet_register_driver(driver) \
77 __moxtet_register_driver(THIS_MODULE,
78
79 #define module_moxtet_driver(__moxtet_driver)
80 module_driver(__moxtet_driver, moxtet_
81 moxtet_unregister_driv
82
83 struct moxtet_device {
84 struct device dev;
85 struct moxtet *moxte
86 enum turris_mox_module_id id;
87 unsigned int idx;
88 };
89
90 extern int moxtet_device_read(struct device *d
91 extern int moxtet_device_write(struct device *
92 extern int moxtet_device_written(struct device
93
94 static inline struct moxtet_device *
95 to_moxtet_device(struct device *dev)
96 {
97 if (!dev)
98 return NULL;
99 return container_of(dev, struct moxtet
100 }
101
102 #endif /* __LINUX_MOXTET_H */
103
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