xref: /linux/drivers/misc/cardreader/rtsx_pcr.h (revision b19efcabb587e5470a423ef778905f47e5a47f1a)
1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /* Driver for Realtek PCI-Express card reader
3  *
4  * Copyright(c) 2009-2013 Realtek Semiconductor Corp. All rights reserved.
5  *
6  * Author:
7  *   Wei WANG <wei_wang@realsil.com.cn>
8  */
9 
10 #ifndef __RTSX_PCR_H
11 #define __RTSX_PCR_H
12 
13 #include <linux/rtsx_pci.h>
14 
15 #define MIN_DIV_N_PCR		80
16 #define MAX_DIV_N_PCR		208
17 
18 #define RTS522A_PM_CTRL3		0xFF7E
19 
20 #define RTS524A_PME_FORCE_CTL		0xFF78
21 #define RTS524A_PM_CTRL3		0xFF7E
22 
23 #define LTR_ACTIVE_LATENCY_DEF		0x883C
24 #define LTR_IDLE_LATENCY_DEF		0x892C
25 #define LTR_L1OFF_LATENCY_DEF		0x9003
26 #define L1_SNOOZE_DELAY_DEF		1
27 #define LTR_L1OFF_SSPWRGATE_5249_DEF		0xAF
28 #define LTR_L1OFF_SSPWRGATE_5250_DEF		0xFF
29 #define LTR_L1OFF_SNOOZE_SSPWRGATE_5249_DEF	0xAC
30 #define LTR_L1OFF_SNOOZE_SSPWRGATE_5250_DEF	0xF8
31 #define CMD_TIMEOUT_DEF		100
32 #define ASPM_MASK_NEG		0xFC
33 #define MASK_8_BIT_DEF		0xFF
34 
35 #define SSC_CLOCK_STABLE_WAIT	130
36 
37 #define RTS524A_OCP_THD_800	0x04
38 #define RTS525A_OCP_THD_800	0x05
39 #define RTS522A_OCP_THD_800	0x06
40 
41 
42 int __rtsx_pci_write_phy_register(struct rtsx_pcr *pcr, u8 addr, u16 val);
43 int __rtsx_pci_read_phy_register(struct rtsx_pcr *pcr, u8 addr, u16 *val);
44 
45 void rts5209_init_params(struct rtsx_pcr *pcr);
46 void rts5229_init_params(struct rtsx_pcr *pcr);
47 void rtl8411_init_params(struct rtsx_pcr *pcr);
48 void rtl8402_init_params(struct rtsx_pcr *pcr);
49 void rts5227_init_params(struct rtsx_pcr *pcr);
50 void rts522a_init_params(struct rtsx_pcr *pcr);
51 void rts5249_init_params(struct rtsx_pcr *pcr);
52 void rts524a_init_params(struct rtsx_pcr *pcr);
53 void rts525a_init_params(struct rtsx_pcr *pcr);
54 void rtl8411b_init_params(struct rtsx_pcr *pcr);
55 void rts5260_init_params(struct rtsx_pcr *pcr);
56 void rts5261_init_params(struct rtsx_pcr *pcr);
57 
58 static inline u8 map_sd_drive(int idx)
59 {
60 	u8 sd_drive[4] = {
61 		0x01,	/* Type D */
62 		0x02,	/* Type C */
63 		0x05,	/* Type A */
64 		0x03	/* Type B */
65 	};
66 
67 	return sd_drive[idx];
68 }
69 
70 #define rtsx_vendor_setting_valid(reg)		(!((reg) & 0x1000000))
71 #define rts5209_vendor_setting1_valid(reg)	(!((reg) & 0x80))
72 #define rts5209_vendor_setting2_valid(reg)	((reg) & 0x80)
73 
74 #define rtsx_reg_to_aspm(reg)			(((reg) >> 28) & 0x03)
75 #define rtsx_reg_to_sd30_drive_sel_1v8(reg)	(((reg) >> 26) & 0x03)
76 #define rtsx_reg_to_sd30_drive_sel_3v3(reg)	(((reg) >> 5) & 0x03)
77 #define rtsx_reg_to_card_drive_sel(reg)		((((reg) >> 25) & 0x01) << 6)
78 #define rtsx_reg_check_reverse_socket(reg)	((reg) & 0x4000)
79 #define rts5209_reg_to_aspm(reg)		(((reg) >> 5) & 0x03)
80 #define rts5209_reg_check_ms_pmos(reg)		(!((reg) & 0x08))
81 #define rts5209_reg_to_sd30_drive_sel_1v8(reg)	(((reg) >> 3) & 0x07)
82 #define rts5209_reg_to_sd30_drive_sel_3v3(reg)	((reg) & 0x07)
83 #define rts5209_reg_to_card_drive_sel(reg)	((reg) >> 8)
84 #define rtl8411_reg_to_sd30_drive_sel_3v3(reg)	(((reg) >> 5) & 0x07)
85 #define rtl8411b_reg_to_sd30_drive_sel_3v3(reg)	((reg) & 0x03)
86 
87 #define set_pull_ctrl_tables(pcr, __device)				\
88 do {									\
89 	pcr->sd_pull_ctl_enable_tbl  = __device##_sd_pull_ctl_enable_tbl;  \
90 	pcr->sd_pull_ctl_disable_tbl = __device##_sd_pull_ctl_disable_tbl; \
91 	pcr->ms_pull_ctl_enable_tbl  = __device##_ms_pull_ctl_enable_tbl;  \
92 	pcr->ms_pull_ctl_disable_tbl = __device##_ms_pull_ctl_disable_tbl; \
93 } while (0)
94 
95 /* generic operations */
96 int rtsx_gops_pm_reset(struct rtsx_pcr *pcr);
97 int rtsx_set_ltr_latency(struct rtsx_pcr *pcr, u32 latency);
98 int rtsx_set_l1off_sub(struct rtsx_pcr *pcr, u8 val);
99 void rtsx_pci_init_ocp(struct rtsx_pcr *pcr);
100 void rtsx_pci_disable_ocp(struct rtsx_pcr *pcr);
101 void rtsx_pci_enable_ocp(struct rtsx_pcr *pcr);
102 int rtsx_pci_get_ocpstat(struct rtsx_pcr *pcr, u8 *val);
103 void rtsx_pci_clear_ocpstat(struct rtsx_pcr *pcr);
104 int rtsx_sd_power_off_card3v3(struct rtsx_pcr *pcr);
105 int rtsx_ms_power_off_card3v3(struct rtsx_pcr *pcr);
106 
107 #endif
108