Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * linux/drivers/pcmcia/sa1111_generic.c | |
3 | * | |
4 | * We implement the generic parts of a SA1111 PCMCIA driver. This | |
5 | * basically means we handle everything except controlling the | |
6 | * power. Power is machine specific... | |
7 | */ | |
1da177e4 LT |
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> | |
99730225 | 14 | #include <linux/io.h> |
1da177e4 LT |
15 | |
16 | #include <pcmcia/ss.h> | |
17 | ||
a09e64fb | 18 | #include <mach/hardware.h> |
1da177e4 | 19 | #include <asm/hardware/sa1111.h> |
1da177e4 LT |
20 | #include <asm/irq.h> |
21 | ||
22 | #include "sa1111_generic.h" | |
23 | ||
24 | static struct pcmcia_irqs irqs[] = { | |
25 | { 0, IRQ_S0_CD_VALID, "SA1111 PCMCIA card detect" }, | |
26 | { 0, IRQ_S0_BVD1_STSCHG, "SA1111 PCMCIA BVD1" }, | |
27 | { 1, IRQ_S1_CD_VALID, "SA1111 CF card detect" }, | |
28 | { 1, IRQ_S1_BVD1_STSCHG, "SA1111 CF BVD1" }, | |
29 | }; | |
30 | ||
31 | int sa1111_pcmcia_hw_init(struct soc_pcmcia_socket *skt) | |
32 | { | |
1da177e4 LT |
33 | return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs)); |
34 | } | |
35 | ||
36 | void sa1111_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt) | |
37 | { | |
38 | soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs)); | |
39 | } | |
40 | ||
41 | void sa1111_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state) | |
42 | { | |
701a5dc0 RKAL |
43 | struct sa1111_pcmcia_socket *s = to_skt(skt); |
44 | unsigned long status = sa1111_readl(s->dev->mapbase + SA1111_PCSR); | |
1da177e4 LT |
45 | |
46 | switch (skt->nr) { | |
47 | case 0: | |
48 | state->detect = status & PCSR_S0_DETECT ? 0 : 1; | |
49 | state->ready = status & PCSR_S0_READY ? 1 : 0; | |
50 | state->bvd1 = status & PCSR_S0_BVD1 ? 1 : 0; | |
51 | state->bvd2 = status & PCSR_S0_BVD2 ? 1 : 0; | |
52 | state->wrprot = status & PCSR_S0_WP ? 1 : 0; | |
53 | state->vs_3v = status & PCSR_S0_VS1 ? 0 : 1; | |
54 | state->vs_Xv = status & PCSR_S0_VS2 ? 0 : 1; | |
55 | break; | |
56 | ||
57 | case 1: | |
58 | state->detect = status & PCSR_S1_DETECT ? 0 : 1; | |
59 | state->ready = status & PCSR_S1_READY ? 1 : 0; | |
60 | state->bvd1 = status & PCSR_S1_BVD1 ? 1 : 0; | |
61 | state->bvd2 = status & PCSR_S1_BVD2 ? 1 : 0; | |
62 | state->wrprot = status & PCSR_S1_WP ? 1 : 0; | |
63 | state->vs_3v = status & PCSR_S1_VS1 ? 0 : 1; | |
64 | state->vs_Xv = status & PCSR_S1_VS2 ? 0 : 1; | |
65 | break; | |
66 | } | |
67 | } | |
68 | ||
69 | int sa1111_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state) | |
70 | { | |
701a5dc0 | 71 | struct sa1111_pcmcia_socket *s = to_skt(skt); |
1da177e4 LT |
72 | unsigned int pccr_skt_mask, pccr_set_mask, val; |
73 | unsigned long flags; | |
74 | ||
75 | switch (skt->nr) { | |
76 | case 0: | |
77 | pccr_skt_mask = PCCR_S0_RST|PCCR_S0_FLT|PCCR_S0_PWAITEN|PCCR_S0_PSE; | |
78 | break; | |
79 | ||
80 | case 1: | |
81 | pccr_skt_mask = PCCR_S1_RST|PCCR_S1_FLT|PCCR_S1_PWAITEN|PCCR_S1_PSE; | |
82 | break; | |
83 | ||
84 | default: | |
85 | return -1; | |
86 | } | |
87 | ||
88 | pccr_set_mask = 0; | |
89 | ||
90 | if (state->Vcc != 0) | |
91 | pccr_set_mask |= PCCR_S0_PWAITEN|PCCR_S1_PWAITEN; | |
92 | if (state->Vcc == 50) | |
93 | pccr_set_mask |= PCCR_S0_PSE|PCCR_S1_PSE; | |
94 | if (state->flags & SS_RESET) | |
95 | pccr_set_mask |= PCCR_S0_RST|PCCR_S1_RST; | |
96 | if (state->flags & SS_OUTPUT_ENA) | |
97 | pccr_set_mask |= PCCR_S0_FLT|PCCR_S1_FLT; | |
98 | ||
99 | local_irq_save(flags); | |
701a5dc0 | 100 | val = sa1111_readl(s->dev->mapbase + SA1111_PCCR); |
1da177e4 LT |
101 | val &= ~pccr_skt_mask; |
102 | val |= pccr_set_mask & pccr_skt_mask; | |
701a5dc0 | 103 | sa1111_writel(val, s->dev->mapbase + SA1111_PCCR); |
1da177e4 LT |
104 | local_irq_restore(flags); |
105 | ||
106 | return 0; | |
107 | } | |
108 | ||
109 | void sa1111_pcmcia_socket_init(struct soc_pcmcia_socket *skt) | |
110 | { | |
111 | soc_pcmcia_enable_irqs(skt, irqs, ARRAY_SIZE(irqs)); | |
112 | } | |
113 | ||
114 | void sa1111_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt) | |
115 | { | |
116 | soc_pcmcia_disable_irqs(skt, irqs, ARRAY_SIZE(irqs)); | |
117 | } | |
118 | ||
701a5dc0 RKAL |
119 | int sa1111_pcmcia_add(struct sa1111_dev *dev, struct pcmcia_low_level *ops, |
120 | int (*add)(struct soc_pcmcia_socket *)) | |
121 | { | |
122 | struct sa1111_pcmcia_socket *s; | |
123 | int i, ret = 0; | |
124 | ||
125 | s = kzalloc(sizeof(*s) * ops->nr, GFP_KERNEL); | |
126 | if (!s) | |
127 | return -ENODEV; | |
128 | ||
129 | for (i = 0; i < ops->nr; i++) { | |
130 | s = kzalloc(sizeof(*s), GFP_KERNEL); | |
131 | if (!s) | |
132 | return -ENOMEM; | |
133 | ||
134 | s->soc.nr = ops->first + i; | |
135 | s->soc.irq = s->soc.nr ? IRQ_S1_READY_NINT : IRQ_S0_READY_NINT; | |
136 | s->soc.ops = ops; | |
137 | s->soc.socket.owner = ops->owner; | |
138 | s->soc.socket.dev.parent = &dev->dev; | |
139 | s->dev = dev; | |
140 | ||
141 | ret = add(&s->soc); | |
142 | if (ret == 0) { | |
143 | s->next = dev_get_drvdata(&dev->dev); | |
144 | dev_set_drvdata(&dev->dev, s); | |
145 | } else | |
146 | kfree(s); | |
147 | } | |
148 | ||
149 | return ret; | |
150 | } | |
151 | ||
1da177e4 LT |
152 | static int pcmcia_probe(struct sa1111_dev *dev) |
153 | { | |
f339ab3d | 154 | void __iomem *base; |
1da177e4 | 155 | |
701a5dc0 RKAL |
156 | dev_set_drvdata(&dev->dev, NULL); |
157 | ||
1da177e4 LT |
158 | if (!request_mem_region(dev->res.start, 512, |
159 | SA1111_DRIVER_NAME(dev))) | |
160 | return -EBUSY; | |
161 | ||
162 | base = dev->mapbase; | |
163 | ||
164 | /* | |
165 | * Initialise the suspend state. | |
166 | */ | |
167 | sa1111_writel(PCSSR_S0_SLEEP | PCSSR_S1_SLEEP, base + SA1111_PCSSR); | |
168 | sa1111_writel(PCCR_S0_FLT | PCCR_S1_FLT, base + SA1111_PCCR); | |
169 | ||
170 | #ifdef CONFIG_SA1100_BADGE4 | |
171 | pcmcia_badge4_init(&dev->dev); | |
172 | #endif | |
173 | #ifdef CONFIG_SA1100_JORNADA720 | |
174 | pcmcia_jornada720_init(&dev->dev); | |
175 | #endif | |
176 | #ifdef CONFIG_ARCH_LUBBOCK | |
177 | pcmcia_lubbock_init(dev); | |
178 | #endif | |
179 | #ifdef CONFIG_ASSABET_NEPONSET | |
180 | pcmcia_neponset_init(dev); | |
181 | #endif | |
182 | return 0; | |
183 | } | |
184 | ||
185 | static int __devexit pcmcia_remove(struct sa1111_dev *dev) | |
186 | { | |
701a5dc0 | 187 | struct sa1111_pcmcia_socket *next, *s = dev_get_drvdata(&dev->dev); |
be85458e RKAL |
188 | |
189 | dev_set_drvdata(&dev->dev, NULL); | |
190 | ||
701a5dc0 RKAL |
191 | for (; next = s->next, s; s = next) { |
192 | soc_pcmcia_remove_one(&s->soc); | |
193 | kfree(s); | |
194 | } | |
be85458e | 195 | |
1da177e4 LT |
196 | release_mem_region(dev->res.start, 512); |
197 | return 0; | |
198 | } | |
199 | ||
8bf28030 | 200 | static int pcmcia_suspend(struct sa1111_dev *dev, pm_message_t state) |
1da177e4 | 201 | { |
827b4649 | 202 | return pcmcia_socket_dev_suspend(&dev->dev); |
1da177e4 LT |
203 | } |
204 | ||
205 | static int pcmcia_resume(struct sa1111_dev *dev) | |
206 | { | |
207 | return pcmcia_socket_dev_resume(&dev->dev); | |
208 | } | |
209 | ||
210 | static struct sa1111_driver pcmcia_driver = { | |
211 | .drv = { | |
212 | .name = "sa1111-pcmcia", | |
213 | }, | |
214 | .devid = SA1111_DEVID_PCMCIA, | |
215 | .probe = pcmcia_probe, | |
216 | .remove = __devexit_p(pcmcia_remove), | |
217 | .suspend = pcmcia_suspend, | |
218 | .resume = pcmcia_resume, | |
219 | }; | |
220 | ||
221 | static int __init sa1111_drv_pcmcia_init(void) | |
222 | { | |
223 | return sa1111_driver_register(&pcmcia_driver); | |
224 | } | |
225 | ||
226 | static void __exit sa1111_drv_pcmcia_exit(void) | |
227 | { | |
228 | sa1111_driver_unregister(&pcmcia_driver); | |
229 | } | |
230 | ||
f36598ae | 231 | fs_initcall(sa1111_drv_pcmcia_init); |
1da177e4 LT |
232 | module_exit(sa1111_drv_pcmcia_exit); |
233 | ||
234 | MODULE_DESCRIPTION("SA1111 PCMCIA card socket driver"); | |
235 | MODULE_LICENSE("GPL"); |