1 /* Driver for Realtek PCI-Express card reader
2  *
3  * Copyright(c) 2009-2013 Realtek Semiconductor Corp. All rights reserved.
4  *
5  * This program is free software; you can redistribute it and/or modify it
6  * under the terms of the GNU General Public License as published by the
7  * Free Software Foundation; either version 2, or (at your option) any
8  * later version.
9  *
10  * This program is distributed in the hope that it will be useful, but
11  * WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13  * General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License along
16  * with this program; if not, see <http://www.gnu.org/licenses/>.
17  *
18  * Author:
19  *   Wei WANG <wei_wang@realsil.com.cn>
20  */
21 
22 #ifndef __RTSX_PCR_H
23 #define __RTSX_PCR_H
24 
25 #include <linux/rtsx_pci.h>
26 
27 #define MIN_DIV_N_PCR		80
28 #define MAX_DIV_N_PCR		208
29 
30 #define RTS522A_PM_CTRL3		0xFF7E
31 
32 #define RTS524A_PME_FORCE_CTL		0xFF78
33 #define RTS524A_PM_CTRL3		0xFF7E
34 
35 #define LTR_ACTIVE_LATENCY_DEF		0x883C
36 #define LTR_IDLE_LATENCY_DEF		0x892C
37 #define LTR_L1OFF_LATENCY_DEF		0x9003
38 #define L1_SNOOZE_DELAY_DEF		1
39 #define LTR_L1OFF_SSPWRGATE_5249_DEF		0xAF
40 #define LTR_L1OFF_SSPWRGATE_5250_DEF		0xFF
41 #define LTR_L1OFF_SNOOZE_SSPWRGATE_5249_DEF	0xAC
42 #define LTR_L1OFF_SNOOZE_SSPWRGATE_5250_DEF	0xF8
43 #define CMD_TIMEOUT_DEF		100
44 #define ASPM_MASK_NEG		0xFC
45 #define MASK_8_BIT_DEF		0xFF
46 
47 #define SSC_CLOCK_STABLE_WAIT	130
48 
49 int __rtsx_pci_write_phy_register(struct rtsx_pcr *pcr, u8 addr, u16 val);
50 int __rtsx_pci_read_phy_register(struct rtsx_pcr *pcr, u8 addr, u16 *val);
51 
52 void rts5209_init_params(struct rtsx_pcr *pcr);
53 void rts5229_init_params(struct rtsx_pcr *pcr);
54 void rtl8411_init_params(struct rtsx_pcr *pcr);
55 void rtl8402_init_params(struct rtsx_pcr *pcr);
56 void rts5227_init_params(struct rtsx_pcr *pcr);
57 void rts522a_init_params(struct rtsx_pcr *pcr);
58 void rts5249_init_params(struct rtsx_pcr *pcr);
59 void rts524a_init_params(struct rtsx_pcr *pcr);
60 void rts525a_init_params(struct rtsx_pcr *pcr);
61 void rtl8411b_init_params(struct rtsx_pcr *pcr);
62 void rts5260_init_params(struct rtsx_pcr *pcr);
63 
map_sd_drive(int idx)64 static inline u8 map_sd_drive(int idx)
65 {
66 	u8 sd_drive[4] = {
67 		0x01,	/* Type D */
68 		0x02,	/* Type C */
69 		0x05,	/* Type A */
70 		0x03	/* Type B */
71 	};
72 
73 	return sd_drive[idx];
74 }
75 
76 #define rtsx_vendor_setting_valid(reg)		(!((reg) & 0x1000000))
77 #define rts5209_vendor_setting1_valid(reg)	(!((reg) & 0x80))
78 #define rts5209_vendor_setting2_valid(reg)	((reg) & 0x80)
79 
80 #define rtsx_reg_to_aspm(reg)			(((reg) >> 28) & 0x03)
81 #define rtsx_reg_to_sd30_drive_sel_1v8(reg)	(((reg) >> 26) & 0x03)
82 #define rtsx_reg_to_sd30_drive_sel_3v3(reg)	(((reg) >> 5) & 0x03)
83 #define rtsx_reg_to_card_drive_sel(reg)		((((reg) >> 25) & 0x01) << 6)
84 #define rtsx_reg_check_reverse_socket(reg)	((reg) & 0x4000)
85 #define rts5209_reg_to_aspm(reg)		(((reg) >> 5) & 0x03)
86 #define rts5209_reg_check_ms_pmos(reg)		(!((reg) & 0x08))
87 #define rts5209_reg_to_sd30_drive_sel_1v8(reg)	(((reg) >> 3) & 0x07)
88 #define rts5209_reg_to_sd30_drive_sel_3v3(reg)	((reg) & 0x07)
89 #define rts5209_reg_to_card_drive_sel(reg)	((reg) >> 8)
90 #define rtl8411_reg_to_sd30_drive_sel_3v3(reg)	(((reg) >> 5) & 0x07)
91 #define rtl8411b_reg_to_sd30_drive_sel_3v3(reg)	((reg) & 0x03)
92 
93 #define set_pull_ctrl_tables(pcr, __device)				\
94 do {									\
95 	pcr->sd_pull_ctl_enable_tbl  = __device##_sd_pull_ctl_enable_tbl;  \
96 	pcr->sd_pull_ctl_disable_tbl = __device##_sd_pull_ctl_disable_tbl; \
97 	pcr->ms_pull_ctl_enable_tbl  = __device##_ms_pull_ctl_enable_tbl;  \
98 	pcr->ms_pull_ctl_disable_tbl = __device##_ms_pull_ctl_disable_tbl; \
99 } while (0)
100 
101 /* generic operations */
102 int rtsx_gops_pm_reset(struct rtsx_pcr *pcr);
103 int rtsx_set_ltr_latency(struct rtsx_pcr *pcr, u32 latency);
104 int rtsx_set_l1off_sub(struct rtsx_pcr *pcr, u8 val);
105 void rtsx_pci_init_ocp(struct rtsx_pcr *pcr);
106 void rtsx_pci_disable_ocp(struct rtsx_pcr *pcr);
107 void rtsx_pci_enable_ocp(struct rtsx_pcr *pcr);
108 int rtsx_pci_get_ocpstat(struct rtsx_pcr *pcr, u8 *val);
109 void rtsx_pci_clear_ocpstat(struct rtsx_pcr *pcr);
110 int rtsx_sd_power_off_card3v3(struct rtsx_pcr *pcr);
111 int rtsx_ms_power_off_card3v3(struct rtsx_pcr *pcr);
112 
113 #endif
114