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 */
26u8 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			default:
113				RT_TRACE(_module_hal_init_c_, _drv_err_,
114					 ("rtl88eu_pwrseqcmdparsing: Unknown CMD!!\n"));
115				break;
116			}
117		}
118
119		aryidx++;/* Add Array Index */
120	} while (1);
121	return true;
122}
123