1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
|
/*
* linux/drivers/pcmcia/sa1111_generic.c
*
* We implement the generic parts of a SA1111 PCMCIA driver. This
* basically means we handle everything except controlling the
* power. Power is machine specific...
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/ioport.h>
#include <linux/device.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/slab.h>
#include <pcmcia/ss.h>
#include <mach/hardware.h>
#include <asm/hardware/sa1111.h>
#include <asm/irq.h>
#include "sa1111_generic.h"
#define IDX_IRQ_S0_READY_NINT (0)
#define IDX_IRQ_S0_CD_VALID (1)
#define IDX_IRQ_S0_BVD1_STSCHG (2)
#define IDX_IRQ_S1_READY_NINT (3)
#define IDX_IRQ_S1_CD_VALID (4)
#define IDX_IRQ_S1_BVD1_STSCHG (5)
static struct pcmcia_irqs irqs[] = {
{ 0, NO_IRQ, "SA1111 PCMCIA card detect" },
{ 0, NO_IRQ, "SA1111 PCMCIA BVD1" },
{ 1, NO_IRQ, "SA1111 CF card detect" },
{ 1, NO_IRQ, "SA1111 CF BVD1" },
};
static int sa1111_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
{
return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs));
}
static void sa1111_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
{
soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs));
}
void sa1111_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state)
{
struct sa1111_pcmcia_socket *s = to_skt(skt);
unsigned long status = sa1111_readl(s->dev->mapbase + SA1111_PCSR);
switch (skt->nr) {
case 0:
state->detect = status & PCSR_S0_DETECT ? 0 : 1;
state->ready = status & PCSR_S0_READY ? 1 : 0;
state->bvd1 = status & PCSR_S0_BVD1 ? 1 : 0;
state->bvd2 = status & PCSR_S0_BVD2 ? 1 : 0;
state->wrprot = status & PCSR_S0_WP ? 1 : 0;
state->vs_3v = status & PCSR_S0_VS1 ? 0 : 1;
state->vs_Xv = status & PCSR_S0_VS2 ? 0 : 1;
break;
case 1:
state->detect = status & PCSR_S1_DETECT ? 0 : 1;
state->ready = status & PCSR_S1_READY ? 1 : 0;
state->bvd1 = status & PCSR_S1_BVD1 ? 1 : 0;
state->bvd2 = status & PCSR_S1_BVD2 ? 1 : 0;
state->wrprot = status & PCSR_S1_WP ? 1 : 0;
state->vs_3v = status & PCSR_S1_VS1 ? 0 : 1;
state->vs_Xv = status & PCSR_S1_VS2 ? 0 : 1;
break;
}
}
int sa1111_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state)
{
struct sa1111_pcmcia_socket *s = to_skt(skt);
unsigned int pccr_skt_mask, pccr_set_mask, val;
unsigned long flags;
switch (skt->nr) {
case 0:
pccr_skt_mask = PCCR_S0_RST|PCCR_S0_FLT|PCCR_S0_PWAITEN|PCCR_S0_PSE;
break;
case 1:
pccr_skt_mask = PCCR_S1_RST|PCCR_S1_FLT|PCCR_S1_PWAITEN|PCCR_S1_PSE;
break;
default:
return -1;
}
pccr_set_mask = 0;
if (state->Vcc != 0)
pccr_set_mask |= PCCR_S0_PWAITEN|PCCR_S1_PWAITEN;
if (state->Vcc == 50)
pccr_set_mask |= PCCR_S0_PSE|PCCR_S1_PSE;
if (state->flags & SS_RESET)
pccr_set_mask |= PCCR_S0_RST|PCCR_S1_RST;
if (state->flags & SS_OUTPUT_ENA)
pccr_set_mask |= PCCR_S0_FLT|PCCR_S1_FLT;
local_irq_save(flags);
val = sa1111_readl(s->dev->mapbase + SA1111_PCCR);
val &= ~pccr_skt_mask;
val |= pccr_set_mask & pccr_skt_mask;
sa1111_writel(val, s->dev->mapbase + SA1111_PCCR);
local_irq_restore(flags);
return 0;
}
void sa1111_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
{
soc_pcmcia_enable_irqs(skt, irqs, ARRAY_SIZE(irqs));
}
static void sa1111_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
{
soc_pcmcia_disable_irqs(skt, irqs, ARRAY_SIZE(irqs));
}
int sa1111_pcmcia_add(struct sa1111_dev *dev, struct pcmcia_low_level *ops,
int (*add)(struct soc_pcmcia_socket *))
{
struct sa1111_pcmcia_socket *s;
int i, ret = 0;
ops->hw_init = sa1111_pcmcia_hw_init;
ops->hw_shutdown = sa1111_pcmcia_hw_shutdown;
ops->socket_state = sa1111_pcmcia_socket_state;
ops->socket_suspend = sa1111_pcmcia_socket_suspend;
for (i = 0; i < ops->nr; i++) {
s = kzalloc(sizeof(*s), GFP_KERNEL);
if (!s)
return -ENOMEM;
s->soc.nr = ops->first + i;
s->soc.ops = ops;
s->soc.socket.owner = ops->owner;
s->soc.socket.dev.parent = &dev->dev;
s->soc.socket.pci_irq = s->soc.nr ?
dev->irq[IDX_IRQ_S0_READY_NINT] :
dev->irq[IDX_IRQ_S1_READY_NINT];
s->dev = dev;
ret = add(&s->soc);
if (ret == 0) {
s->next = dev_get_drvdata(&dev->dev);
dev_set_drvdata(&dev->dev, s);
} else
kfree(s);
}
return ret;
}
static int pcmcia_probe(struct sa1111_dev *dev)
{
void __iomem *base;
dev_set_drvdata(&dev->dev, NULL);
if (!request_mem_region(dev->res.start, 512,
SA1111_DRIVER_NAME(dev)))
return -EBUSY;
base = dev->mapbase;
/* Initialize PCMCIA IRQs */
irqs[0].irq = dev->irq[IDX_IRQ_S0_CD_VALID];
irqs[1].irq = dev->irq[IDX_IRQ_S0_BVD1_STSCHG];
irqs[2].irq = dev->irq[IDX_IRQ_S1_CD_VALID];
irqs[3].irq = dev->irq[IDX_IRQ_S1_BVD1_STSCHG];
/*
* Initialise the suspend state.
*/
sa1111_writel(PCSSR_S0_SLEEP | PCSSR_S1_SLEEP, base + SA1111_PCSSR);
sa1111_writel(PCCR_S0_FLT | PCCR_S1_FLT, base + SA1111_PCCR);
#ifdef CONFIG_SA1100_BADGE4
pcmcia_badge4_init(&dev->dev);
#endif
#ifdef CONFIG_SA1100_JORNADA720
pcmcia_jornada720_init(&dev->dev);
#endif
#ifdef CONFIG_ARCH_LUBBOCK
pcmcia_lubbock_init(dev);
#endif
#ifdef CONFIG_ASSABET_NEPONSET
pcmcia_neponset_init(dev);
#endif
return 0;
}
static int __devexit pcmcia_remove(struct sa1111_dev *dev)
{
struct sa1111_pcmcia_socket *next, *s = dev_get_drvdata(&dev->dev);
dev_set_drvdata(&dev->dev, NULL);
for (; s; s = next) {
next = s->next;
soc_pcmcia_remove_one(&s->soc);
kfree(s);
}
release_mem_region(dev->res.start, 512);
return 0;
}
static struct sa1111_driver pcmcia_driver = {
.drv = {
.name = "sa1111-pcmcia",
},
.devid = SA1111_DEVID_PCMCIA,
.probe = pcmcia_probe,
.remove = __devexit_p(pcmcia_remove),
};
static int __init sa1111_drv_pcmcia_init(void)
{
return sa1111_driver_register(&pcmcia_driver);
}
static void __exit sa1111_drv_pcmcia_exit(void)
{
sa1111_driver_unregister(&pcmcia_driver);
}
fs_initcall(sa1111_drv_pcmcia_init);
module_exit(sa1111_drv_pcmcia_exit);
MODULE_DESCRIPTION("SA1111 PCMCIA card socket driver");
MODULE_LICENSE("GPL");
|
