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