1 // SPDX-License-Identifier: GPL-2.0
2 /******************************************************************************
3 *
4 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
5 *
6 ******************************************************************************/
7 /*
8
9 The purpose of rtw_io.c
10
11 a. provides the API
12
13 b. provides the protocol engine
14
15 c. provides the software interface between caller and the hardware interface
16
17
18 Compiler Flag Option:
19
20 1. CONFIG_SDIO_HCI:
21 a. USE_SYNC_IRP: Only sync operations are provided.
22 b. USE_ASYNC_IRP:Both sync/async operations are provided.
23
24 jackson@realtek.com.tw
25
26 */
27
28 #include <drv_types.h>
29 #include <rtw_debug.h>
30
rtw_read8(struct adapter * adapter,u32 addr)31 u8 rtw_read8(struct adapter *adapter, u32 addr)
32 {
33 /* struct io_queue *pio_queue = (struct io_queue *)adapter->pio_queue; */
34 struct io_priv *pio_priv = &adapter->iopriv;
35 struct intf_hdl *pintfhdl = &(pio_priv->intf);
36 u8 (*_read8)(struct intf_hdl *pintfhdl, u32 addr);
37
38 _read8 = pintfhdl->io_ops._read8;
39
40 return _read8(pintfhdl, addr);
41 }
42
rtw_read16(struct adapter * adapter,u32 addr)43 u16 rtw_read16(struct adapter *adapter, u32 addr)
44 {
45 /* struct io_queue *pio_queue = (struct io_queue *)adapter->pio_queue; */
46 struct io_priv *pio_priv = &adapter->iopriv;
47 struct intf_hdl *pintfhdl = &(pio_priv->intf);
48 u16 (*_read16)(struct intf_hdl *pintfhdl, u32 addr);
49
50 _read16 = pintfhdl->io_ops._read16;
51
52 return _read16(pintfhdl, addr);
53 }
54
rtw_read32(struct adapter * adapter,u32 addr)55 u32 rtw_read32(struct adapter *adapter, u32 addr)
56 {
57 /* struct io_queue *pio_queue = (struct io_queue *)adapter->pio_queue; */
58 struct io_priv *pio_priv = &adapter->iopriv;
59 struct intf_hdl *pintfhdl = &(pio_priv->intf);
60 u32 (*_read32)(struct intf_hdl *pintfhdl, u32 addr);
61
62 _read32 = pintfhdl->io_ops._read32;
63
64 return _read32(pintfhdl, addr);
65
66 }
67
rtw_write8(struct adapter * adapter,u32 addr,u8 val)68 int rtw_write8(struct adapter *adapter, u32 addr, u8 val)
69 {
70 /* struct io_queue *pio_queue = (struct io_queue *)adapter->pio_queue; */
71 struct io_priv *pio_priv = &adapter->iopriv;
72 struct intf_hdl *pintfhdl = &(pio_priv->intf);
73 int (*_write8)(struct intf_hdl *pintfhdl, u32 addr, u8 val);
74 int ret;
75
76 _write8 = pintfhdl->io_ops._write8;
77
78 ret = _write8(pintfhdl, addr, val);
79
80 return RTW_STATUS_CODE(ret);
81 }
rtw_write16(struct adapter * adapter,u32 addr,u16 val)82 int rtw_write16(struct adapter *adapter, u32 addr, u16 val)
83 {
84 /* struct io_queue *pio_queue = (struct io_queue *)adapter->pio_queue; */
85 struct io_priv *pio_priv = &adapter->iopriv;
86 struct intf_hdl *pintfhdl = &(pio_priv->intf);
87 int (*_write16)(struct intf_hdl *pintfhdl, u32 addr, u16 val);
88 int ret;
89
90 _write16 = pintfhdl->io_ops._write16;
91
92 ret = _write16(pintfhdl, addr, val);
93 return RTW_STATUS_CODE(ret);
94 }
rtw_write32(struct adapter * adapter,u32 addr,u32 val)95 int rtw_write32(struct adapter *adapter, u32 addr, u32 val)
96 {
97 /* struct io_queue *pio_queue = (struct io_queue *)adapter->pio_queue; */
98 struct io_priv *pio_priv = &adapter->iopriv;
99 struct intf_hdl *pintfhdl = &(pio_priv->intf);
100 int (*_write32)(struct intf_hdl *pintfhdl, u32 addr, u32 val);
101 int ret;
102
103 _write32 = pintfhdl->io_ops._write32;
104
105 ret = _write32(pintfhdl, addr, val);
106
107 return RTW_STATUS_CODE(ret);
108 }
109
rtw_write_port(struct adapter * adapter,u32 addr,u32 cnt,u8 * pmem)110 u32 rtw_write_port(struct adapter *adapter, u32 addr, u32 cnt, u8 *pmem)
111 {
112 u32 (*_write_port)(struct intf_hdl *pintfhdl, u32 addr, u32 cnt, u8 *pmem);
113 struct io_priv *pio_priv = &adapter->iopriv;
114 struct intf_hdl *pintfhdl = &(pio_priv->intf);
115
116 _write_port = pintfhdl->io_ops._write_port;
117
118 return _write_port(pintfhdl, addr, cnt, pmem);
119 }
120
rtw_init_io_priv(struct adapter * padapter,void (* set_intf_ops)(struct adapter * padapter,struct _io_ops * pops))121 int rtw_init_io_priv(struct adapter *padapter, void (*set_intf_ops)(struct adapter *padapter, struct _io_ops *pops))
122 {
123 struct io_priv *piopriv = &padapter->iopriv;
124 struct intf_hdl *pintf = &piopriv->intf;
125
126 if (!set_intf_ops)
127 return _FAIL;
128
129 piopriv->padapter = padapter;
130 pintf->padapter = padapter;
131 pintf->pintf_dev = adapter_to_dvobj(padapter);
132
133 set_intf_ops(padapter, &pintf->io_ops);
134
135 return _SUCCESS;
136 }
137
138 /*
139 * Increase and check if the continual_io_error of this @param dvobjprive is larger than MAX_CONTINUAL_IO_ERR
140 * @return true:
141 * @return false:
142 */
rtw_inc_and_chk_continual_io_error(struct dvobj_priv * dvobj)143 int rtw_inc_and_chk_continual_io_error(struct dvobj_priv *dvobj)
144 {
145 int ret = false;
146 int value = atomic_inc_return(&dvobj->continual_io_error);
147 if (value > MAX_CONTINUAL_IO_ERR)
148 ret = true;
149
150 return ret;
151 }
152
153 /*
154 * Set the continual_io_error of this @param dvobjprive to 0
155 */
rtw_reset_continual_io_error(struct dvobj_priv * dvobj)156 void rtw_reset_continual_io_error(struct dvobj_priv *dvobj)
157 {
158 atomic_set(&dvobj->continual_io_error, 0);
159 }
160