Commit | Line | Data |
---|---|---|
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 | ||
dabd1468 | 31 | static int sa1111_pcmcia_hw_init(struct soc_pcmcia_socket *skt) |
1da177e4 | 32 | { |
1da177e4 LT |
33 | return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs)); |
34 | } | |
35 | ||
dabd1468 | 36 | static void sa1111_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt) |
1da177e4 LT |
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 | ||
dabd1468 | 114 | static void sa1111_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt) |
1da177e4 LT |
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 | ||
dabd1468 RKAL |
125 | ops->hw_init = sa1111_pcmcia_hw_init; |
126 | ops->hw_shutdown = sa1111_pcmcia_hw_shutdown; | |
127 | ops->socket_state = sa1111_pcmcia_socket_state; | |
128 | ops->socket_suspend = sa1111_pcmcia_socket_suspend; | |
129 | ||
701a5dc0 RKAL |
130 | s = kzalloc(sizeof(*s) * ops->nr, GFP_KERNEL); |
131 | if (!s) | |
132 | return -ENODEV; | |
133 | ||
134 | for (i = 0; i < ops->nr; i++) { | |
135 | s = kzalloc(sizeof(*s), GFP_KERNEL); | |
136 | if (!s) | |
137 | return -ENOMEM; | |
138 | ||
139 | s->soc.nr = ops->first + i; | |
701a5dc0 RKAL |
140 | s->soc.ops = ops; |
141 | s->soc.socket.owner = ops->owner; | |
142 | s->soc.socket.dev.parent = &dev->dev; | |
66024db5 | 143 | s->soc.socket.pci_irq = s->soc.nr ? IRQ_S1_READY_NINT : IRQ_S0_READY_NINT; |
701a5dc0 RKAL |
144 | s->dev = dev; |
145 | ||
146 | ret = add(&s->soc); | |
147 | if (ret == 0) { | |
148 | s->next = dev_get_drvdata(&dev->dev); | |
149 | dev_set_drvdata(&dev->dev, s); | |
150 | } else | |
151 | kfree(s); | |
152 | } | |
153 | ||
154 | return ret; | |
155 | } | |
156 | ||
1da177e4 LT |
157 | static int pcmcia_probe(struct sa1111_dev *dev) |
158 | { | |
f339ab3d | 159 | void __iomem *base; |
1da177e4 | 160 | |
701a5dc0 RKAL |
161 | dev_set_drvdata(&dev->dev, NULL); |
162 | ||
1da177e4 LT |
163 | if (!request_mem_region(dev->res.start, 512, |
164 | SA1111_DRIVER_NAME(dev))) | |
165 | return -EBUSY; | |
166 | ||
167 | base = dev->mapbase; | |
168 | ||
169 | /* | |
170 | * Initialise the suspend state. | |
171 | */ | |
172 | sa1111_writel(PCSSR_S0_SLEEP | PCSSR_S1_SLEEP, base + SA1111_PCSSR); | |
173 | sa1111_writel(PCCR_S0_FLT | PCCR_S1_FLT, base + SA1111_PCCR); | |
174 | ||
175 | #ifdef CONFIG_SA1100_BADGE4 | |
176 | pcmcia_badge4_init(&dev->dev); | |
177 | #endif | |
178 | #ifdef CONFIG_SA1100_JORNADA720 | |
179 | pcmcia_jornada720_init(&dev->dev); | |
180 | #endif | |
181 | #ifdef CONFIG_ARCH_LUBBOCK | |
182 | pcmcia_lubbock_init(dev); | |
183 | #endif | |
184 | #ifdef CONFIG_ASSABET_NEPONSET | |
185 | pcmcia_neponset_init(dev); | |
186 | #endif | |
187 | return 0; | |
188 | } | |
189 | ||
190 | static int __devexit pcmcia_remove(struct sa1111_dev *dev) | |
191 | { | |
701a5dc0 | 192 | struct sa1111_pcmcia_socket *next, *s = dev_get_drvdata(&dev->dev); |
be85458e RKAL |
193 | |
194 | dev_set_drvdata(&dev->dev, NULL); | |
195 | ||
701a5dc0 RKAL |
196 | for (; next = s->next, s; s = next) { |
197 | soc_pcmcia_remove_one(&s->soc); | |
198 | kfree(s); | |
199 | } | |
be85458e | 200 | |
1da177e4 LT |
201 | release_mem_region(dev->res.start, 512); |
202 | return 0; | |
203 | } | |
204 | ||
8bf28030 | 205 | static int pcmcia_suspend(struct sa1111_dev *dev, pm_message_t state) |
1da177e4 | 206 | { |
827b4649 | 207 | return pcmcia_socket_dev_suspend(&dev->dev); |
1da177e4 LT |
208 | } |
209 | ||
210 | static int pcmcia_resume(struct sa1111_dev *dev) | |
211 | { | |
212 | return pcmcia_socket_dev_resume(&dev->dev); | |
213 | } | |
214 | ||
215 | static struct sa1111_driver pcmcia_driver = { | |
216 | .drv = { | |
217 | .name = "sa1111-pcmcia", | |
218 | }, | |
219 | .devid = SA1111_DEVID_PCMCIA, | |
220 | .probe = pcmcia_probe, | |
221 | .remove = __devexit_p(pcmcia_remove), | |
222 | .suspend = pcmcia_suspend, | |
223 | .resume = pcmcia_resume, | |
224 | }; | |
225 | ||
226 | static int __init sa1111_drv_pcmcia_init(void) | |
227 | { | |
228 | return sa1111_driver_register(&pcmcia_driver); | |
229 | } | |
230 | ||
231 | static void __exit sa1111_drv_pcmcia_exit(void) | |
232 | { | |
233 | sa1111_driver_unregister(&pcmcia_driver); | |
234 | } | |
235 | ||
f36598ae | 236 | fs_initcall(sa1111_drv_pcmcia_init); |
1da177e4 LT |
237 | module_exit(sa1111_drv_pcmcia_exit); |
238 | ||
239 | MODULE_DESCRIPTION("SA1111 PCMCIA card socket driver"); | |
240 | MODULE_LICENSE("GPL"); |