1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | #include <pcmcia/ss.h> |
3 | |
4 | struct module; |
5 | struct cpufreq_freqs; |
6 | |
7 | struct soc_pcmcia_regulator { |
8 | struct regulator *reg; |
9 | bool on; |
10 | }; |
11 | |
12 | struct pcmcia_state { |
13 | unsigned detect: 1, |
14 | ready: 1, |
15 | bvd1: 1, |
16 | bvd2: 1, |
17 | wrprot: 1, |
18 | vs_3v: 1, |
19 | vs_Xv: 1; |
20 | }; |
21 | |
22 | /* |
23 | * This structure encapsulates per-socket state which we might need to |
24 | * use when responding to a Card Services query of some kind. |
25 | */ |
26 | struct soc_pcmcia_socket { |
27 | struct pcmcia_socket socket; |
28 | |
29 | /* |
30 | * Info from low level handler |
31 | */ |
32 | unsigned int nr; |
33 | struct clk *clk; |
34 | |
35 | /* |
36 | * Core PCMCIA state |
37 | */ |
38 | const struct pcmcia_low_level *ops; |
39 | |
40 | unsigned int status; |
41 | socket_state_t cs_state; |
42 | |
43 | unsigned short spd_io[MAX_IO_WIN]; |
44 | unsigned short spd_mem[MAX_WIN]; |
45 | unsigned short spd_attr[MAX_WIN]; |
46 | |
47 | struct resource res_skt; |
48 | struct resource res_io; |
49 | struct resource res_io_io; |
50 | struct resource res_mem; |
51 | struct resource res_attr; |
52 | |
53 | struct { |
54 | int gpio; |
55 | struct gpio_desc *desc; |
56 | unsigned int irq; |
57 | const char *name; |
58 | } stat[6]; |
59 | #define SOC_STAT_CD 0 /* Card detect */ |
60 | #define SOC_STAT_BVD1 1 /* BATDEAD / IOSTSCHG */ |
61 | #define SOC_STAT_BVD2 2 /* BATWARN / IOSPKR */ |
62 | #define SOC_STAT_RDY 3 /* Ready / Interrupt */ |
63 | #define SOC_STAT_VS1 4 /* Voltage sense 1 */ |
64 | #define SOC_STAT_VS2 5 /* Voltage sense 2 */ |
65 | |
66 | struct gpio_desc *gpio_reset; |
67 | struct gpio_desc *gpio_bus_enable; |
68 | struct soc_pcmcia_regulator vcc; |
69 | struct soc_pcmcia_regulator vpp; |
70 | |
71 | unsigned int irq_state; |
72 | |
73 | #ifdef CONFIG_CPU_FREQ |
74 | struct notifier_block cpufreq_nb; |
75 | #endif |
76 | struct timer_list poll_timer; |
77 | struct list_head node; |
78 | void *driver_data; |
79 | }; |
80 | |
81 | |
82 | struct pcmcia_low_level { |
83 | struct module *owner; |
84 | |
85 | /* first socket in system */ |
86 | int first; |
87 | /* nr of sockets */ |
88 | int nr; |
89 | |
90 | int (*hw_init)(struct soc_pcmcia_socket *); |
91 | void (*hw_shutdown)(struct soc_pcmcia_socket *); |
92 | |
93 | void (*socket_state)(struct soc_pcmcia_socket *, struct pcmcia_state *); |
94 | int (*configure_socket)(struct soc_pcmcia_socket *, const socket_state_t *); |
95 | |
96 | /* |
97 | * Enable card status IRQs on (re-)initialisation. This can |
98 | * be called at initialisation, power management event, or |
99 | * pcmcia event. |
100 | */ |
101 | void (*socket_init)(struct soc_pcmcia_socket *); |
102 | |
103 | /* |
104 | * Disable card status IRQs and PCMCIA bus on suspend. |
105 | */ |
106 | void (*socket_suspend)(struct soc_pcmcia_socket *); |
107 | |
108 | /* |
109 | * Hardware specific timing routines. |
110 | * If provided, the get_timing routine overrides the SOC default. |
111 | */ |
112 | unsigned int (*get_timing)(struct soc_pcmcia_socket *, unsigned int, unsigned int); |
113 | int (*set_timing)(struct soc_pcmcia_socket *); |
114 | int (*show_timing)(struct soc_pcmcia_socket *, char *); |
115 | |
116 | #ifdef CONFIG_CPU_FREQ |
117 | /* |
118 | * CPUFREQ support. |
119 | */ |
120 | int (*frequency_change)(struct soc_pcmcia_socket *, unsigned long, struct cpufreq_freqs *); |
121 | #endif |
122 | }; |
123 | |
124 | |
125 | |
126 | |