1 /******************************************************************************
2 *
3 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
17 *
18 ******************************************************************************/
19
20 #include <pwrseqcmd.h>
21 #include <usb_ops_linux.h>
22
23 /* This routine deals with the Power Configuration CMDs parsing
24 * for RTL8723/RTL8188E Series IC.
25 */
rtl88eu_pwrseqcmdparsing(struct adapter * padapter,u8 cut_vers,u8 fab_vers,u8 ifacetype,struct wl_pwr_cfg pwrseqcmd[])26 u8 rtl88eu_pwrseqcmdparsing(struct adapter *padapter, u8 cut_vers, u8 fab_vers,
27 u8 ifacetype, struct wl_pwr_cfg pwrseqcmd[])
28 {
29 struct wl_pwr_cfg pwrcfgcmd = {0};
30 u8 poll_bit = false;
31 u32 aryidx = 0;
32 u8 value = 0;
33 u32 offset = 0;
34 u32 poll_count = 0; /* polling autoload done. */
35 u32 max_poll_count = 5000;
36
37 do {
38 pwrcfgcmd = pwrseqcmd[aryidx];
39
40 RT_TRACE(_module_hal_init_c_ , _drv_info_,
41 ("rtl88eu_pwrseqcmdparsing: offset(%#x) cut_msk(%#x)"
42 "fab_msk(%#x) interface_msk(%#x) base(%#x) cmd(%#x)"
43 "msk(%#x) value(%#x)\n",
44 GET_PWR_CFG_OFFSET(pwrcfgcmd),
45 GET_PWR_CFG_CUT_MASK(pwrcfgcmd),
46 GET_PWR_CFG_FAB_MASK(pwrcfgcmd),
47 GET_PWR_CFG_INTF_MASK(pwrcfgcmd),
48 GET_PWR_CFG_BASE(pwrcfgcmd),
49 GET_PWR_CFG_CMD(pwrcfgcmd),
50 GET_PWR_CFG_MASK(pwrcfgcmd),
51 GET_PWR_CFG_VALUE(pwrcfgcmd)));
52
53 /* Only Handle the command whose FAB, CUT, and Interface are matched */
54 if ((GET_PWR_CFG_FAB_MASK(pwrcfgcmd) & fab_vers) &&
55 (GET_PWR_CFG_CUT_MASK(pwrcfgcmd) & cut_vers) &&
56 (GET_PWR_CFG_INTF_MASK(pwrcfgcmd) & ifacetype)) {
57 switch (GET_PWR_CFG_CMD(pwrcfgcmd)) {
58 case PWR_CMD_READ:
59 RT_TRACE(_module_hal_init_c_, _drv_info_,
60 ("rtl88eu_pwrseqcmdparsing: PWR_CMD_READ\n"));
61 break;
62 case PWR_CMD_WRITE:
63 RT_TRACE(_module_hal_init_c_, _drv_info_,
64 ("rtl88eu_pwrseqcmdparsing: PWR_CMD_WRITE\n"));
65 offset = GET_PWR_CFG_OFFSET(pwrcfgcmd);
66
67 /* Read the value from system register */
68 value = usb_read8(padapter, offset);
69
70 value &= ~(GET_PWR_CFG_MASK(pwrcfgcmd));
71 value |= (GET_PWR_CFG_VALUE(pwrcfgcmd) &
72 GET_PWR_CFG_MASK(pwrcfgcmd));
73
74 /* Write the value back to system register */
75 usb_write8(padapter, offset, value);
76 break;
77 case PWR_CMD_POLLING:
78 RT_TRACE(_module_hal_init_c_, _drv_info_,
79 ("rtl88eu_pwrseqcmdparsing: PWR_CMD_POLLING\n"));
80
81 poll_bit = false;
82 offset = GET_PWR_CFG_OFFSET(pwrcfgcmd);
83 do {
84 value = usb_read8(padapter, offset);
85 value &= GET_PWR_CFG_MASK(pwrcfgcmd);
86
87 if (value == (GET_PWR_CFG_VALUE(pwrcfgcmd) &
88 GET_PWR_CFG_MASK(pwrcfgcmd)))
89 poll_bit = true;
90 else
91 udelay(10);
92
93 if (poll_count++ > max_poll_count) {
94 DBG_88E("Fail to polling Offset[%#x]\n", offset);
95 return false;
96 }
97 } while (!poll_bit);
98 break;
99 case PWR_CMD_DELAY:
100 RT_TRACE(_module_hal_init_c_, _drv_info_,
101 ("rtl88eu_pwrseqcmdparsing: PWR_CMD_DELAY\n"));
102 if (GET_PWR_CFG_VALUE(pwrcfgcmd) == PWRSEQ_DELAY_US)
103 udelay(GET_PWR_CFG_OFFSET(pwrcfgcmd));
104 else
105 udelay(GET_PWR_CFG_OFFSET(pwrcfgcmd)*1000);
106 break;
107 case PWR_CMD_END:
108 /* When this command is parsed, end the process */
109 RT_TRACE(_module_hal_init_c_, _drv_info_,
110 ("rtl88eu_pwrseqcmdparsing: PWR_CMD_END\n"));
111 return true;
112 break;
113 default:
114 RT_TRACE(_module_hal_init_c_, _drv_err_,
115 ("rtl88eu_pwrseqcmdparsing: Unknown CMD!!\n"));
116 break;
117 }
118 }
119
120 aryidx++;/* Add Array Index */
121 } while (1);
122 return true;
123 }
124