1 // SPDX-License-Identifier: GPL-2.0
2 /******************************************************************************
3 *
4 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
5 *
6 ******************************************************************************/
7
8 #include <pwrseqcmd.h>
9 #include <usb_ops_linux.h>
10
11 /* This routine deals with the Power Configuration CMDs parsing
12 * for RTL8723/RTL8188E Series IC.
13 */
rtl88eu_pwrseqcmdparsing(struct adapter * padapter,u8 cut_vers,struct wl_pwr_cfg pwrseqcmd[])14 u8 rtl88eu_pwrseqcmdparsing(struct adapter *padapter, u8 cut_vers,
15 struct wl_pwr_cfg pwrseqcmd[])
16 {
17 struct wl_pwr_cfg pwrcfgcmd;
18 u8 poll_bit = false;
19 u32 aryidx = 0;
20 u8 value = 0;
21 u32 offset = 0;
22 u32 poll_count = 0; /* polling autoload done. */
23 u32 max_poll_count = 5000;
24
25 do {
26 pwrcfgcmd = pwrseqcmd[aryidx];
27
28 RT_TRACE(_module_hal_init_c_, _drv_info_,
29 ("%s: offset(%#x) cut_msk(%#x)"
30 " cmd(%#x)"
31 "msk(%#x) value(%#x)\n",
32 __func__,
33 GET_PWR_CFG_OFFSET(pwrcfgcmd),
34 GET_PWR_CFG_CUT_MASK(pwrcfgcmd),
35 GET_PWR_CFG_CMD(pwrcfgcmd),
36 GET_PWR_CFG_MASK(pwrcfgcmd),
37 GET_PWR_CFG_VALUE(pwrcfgcmd)));
38
39 /* Only Handle the command whose CUT is matched */
40 if (GET_PWR_CFG_CUT_MASK(pwrcfgcmd) & cut_vers) {
41 switch (GET_PWR_CFG_CMD(pwrcfgcmd)) {
42 case PWR_CMD_READ:
43 RT_TRACE(_module_hal_init_c_, _drv_info_,
44 ("%s: PWR_CMD_READ\n", __func__));
45 break;
46 case PWR_CMD_WRITE:
47 RT_TRACE(_module_hal_init_c_, _drv_info_,
48 ("%s: PWR_CMD_WRITE\n", __func__));
49 offset = GET_PWR_CFG_OFFSET(pwrcfgcmd);
50
51 /* Read the value from system register */
52 value = usb_read8(padapter, offset);
53
54 value &= ~(GET_PWR_CFG_MASK(pwrcfgcmd));
55 value |= (GET_PWR_CFG_VALUE(pwrcfgcmd) &
56 GET_PWR_CFG_MASK(pwrcfgcmd));
57
58 /* Write the value back to system register */
59 usb_write8(padapter, offset, value);
60 break;
61 case PWR_CMD_POLLING:
62 RT_TRACE(_module_hal_init_c_, _drv_info_,
63 ("%s: PWR_CMD_POLLING\n", __func__));
64
65 poll_bit = false;
66 offset = GET_PWR_CFG_OFFSET(pwrcfgcmd);
67 do {
68 value = usb_read8(padapter, offset);
69 value &= GET_PWR_CFG_MASK(pwrcfgcmd);
70
71 if (value == (GET_PWR_CFG_VALUE(pwrcfgcmd) &
72 GET_PWR_CFG_MASK(pwrcfgcmd)))
73 poll_bit = true;
74 else
75 udelay(10);
76
77 if (poll_count++ > max_poll_count) {
78 DBG_88E("Fail to polling Offset[%#x]\n", offset);
79 return false;
80 }
81 } while (!poll_bit);
82 break;
83 case PWR_CMD_DELAY:
84 RT_TRACE(_module_hal_init_c_, _drv_info_,
85 ("%s: PWR_CMD_DELAY\n", __func__));
86 if (GET_PWR_CFG_VALUE(pwrcfgcmd) == PWRSEQ_DELAY_US)
87 udelay(GET_PWR_CFG_OFFSET(pwrcfgcmd));
88 else
89 udelay(GET_PWR_CFG_OFFSET(pwrcfgcmd) * 1000);
90 break;
91 case PWR_CMD_END:
92 /* When this command is parsed, end the process */
93 RT_TRACE(_module_hal_init_c_, _drv_info_,
94 ("%s: PWR_CMD_END\n", __func__));
95 return true;
96 default:
97 RT_TRACE(_module_hal_init_c_, _drv_err_,
98 ("%s: Unknown CMD!!\n", __func__));
99 break;
100 }
101 }
102
103 aryidx++;/* Add Array Index */
104 } while (1);
105 return true;
106 }
107
