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[/] [test_project/] [trunk/] [linux_sd_driver/] [drivers/] [pcmcia/] [sa1100_h3600.c] - Blame information for rev 62

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/*
 * drivers/pcmcia/sa1100_h3600.c
 *
 * PCMCIA implementation routines for H3600
 *
 */
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/delay.h>
 
#include <asm/hardware.h>
#include <asm/irq.h>
#include <asm/mach-types.h>
#include <asm/arch/h3600.h>
 
#include "sa1100_generic.h"
 
static struct pcmcia_irqs irqs[] = {
        { 0, IRQ_GPIO_H3600_PCMCIA_CD0, "PCMCIA CD0" },
        { 1, IRQ_GPIO_H3600_PCMCIA_CD1, "PCMCIA CD1" }
};
 
static int h3600_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
{
        skt->irq = skt->nr ? IRQ_GPIO_H3600_PCMCIA_IRQ1
                           : IRQ_GPIO_H3600_PCMCIA_IRQ0;
 
 
        return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs));
}
 
static void h3600_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
{
        soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs));
 
        /* Disable CF bus: */
        clr_h3600_egpio(IPAQ_EGPIO_OPT_NVRAM_ON);
        clr_h3600_egpio(IPAQ_EGPIO_OPT_ON);
        set_h3600_egpio(IPAQ_EGPIO_OPT_RESET);
}
 
static void
h3600_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state)
{
        unsigned long levels = GPLR;
 
        switch (skt->nr) {
        case 0:
                state->detect = levels & GPIO_H3600_PCMCIA_CD0 ? 0 : 1;
                state->ready = levels & GPIO_H3600_PCMCIA_IRQ0 ? 1 : 0;
                state->bvd1 = 0;
                state->bvd2 = 0;
                state->wrprot = 0; /* Not available on H3600. */
                state->vs_3v = 0;
                state->vs_Xv = 0;
                break;
 
        case 1:
                state->detect = levels & GPIO_H3600_PCMCIA_CD1 ? 0 : 1;
                state->ready = levels & GPIO_H3600_PCMCIA_IRQ1 ? 1 : 0;
                state->bvd1 = 0;
                state->bvd2 = 0;
                state->wrprot = 0; /* Not available on H3600. */
                state->vs_3v = 0;
                state->vs_Xv = 0;
                break;
        }
}
 
static int
h3600_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state)
{
        if (state->Vcc != 0 && state->Vcc != 33 && state->Vcc != 50) {
                printk(KERN_ERR "h3600_pcmcia: unrecognized Vcc %u.%uV\n",
                       state->Vcc / 10, state->Vcc % 10);
                return -1;
        }
 
        if (state->flags & SS_RESET)
                set_h3600_egpio(IPAQ_EGPIO_CARD_RESET);
        else
                clr_h3600_egpio(IPAQ_EGPIO_CARD_RESET);
 
        /* Silently ignore Vpp, output enable, speaker enable. */
 
        return 0;
}
 
static void h3600_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
{
        /* Enable CF bus: */
        set_h3600_egpio(IPAQ_EGPIO_OPT_NVRAM_ON);
        set_h3600_egpio(IPAQ_EGPIO_OPT_ON);
        clr_h3600_egpio(IPAQ_EGPIO_OPT_RESET);
 
        msleep(10);
 
        soc_pcmcia_enable_irqs(skt, irqs, ARRAY_SIZE(irqs));
}
 
static void h3600_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
{
        soc_pcmcia_disable_irqs(skt, irqs, ARRAY_SIZE(irqs));
 
        /*
         * FIXME:  This doesn't fit well.  We don't have the mechanism in
         * the generic PCMCIA layer to deal with the idea of two sockets
         * on one bus.  We rely on the cs.c behaviour shutting down
         * socket 0 then socket 1.
         */
        if (skt->nr == 1) {
                clr_h3600_egpio(IPAQ_EGPIO_OPT_ON);
                clr_h3600_egpio(IPAQ_EGPIO_OPT_NVRAM_ON);
                /* hmm, does this suck power? */
                set_h3600_egpio(IPAQ_EGPIO_OPT_RESET);
        }
}
 
struct pcmcia_low_level h3600_pcmcia_ops = {
        .owner                  = THIS_MODULE,
        .hw_init                = h3600_pcmcia_hw_init,
        .hw_shutdown            = h3600_pcmcia_hw_shutdown,
        .socket_state           = h3600_pcmcia_socket_state,
        .configure_socket       = h3600_pcmcia_configure_socket,
 
        .socket_init            = h3600_pcmcia_socket_init,
        .socket_suspend         = h3600_pcmcia_socket_suspend,
};
 
int __init pcmcia_h3600_init(struct device *dev)
{
        int ret = -ENODEV;
 
        if (machine_is_h3600())
                ret = sa11xx_drv_pcmcia_probe(dev, &h3600_pcmcia_ops, 0, 2);
 
        return ret;
}

Line No.	Rev	Author	Line
1	62	marcus.erl	`/*`
2			`* drivers/pcmcia/sa1100_h3600.c`
3			`*`
4			`* PCMCIA implementation routines for H3600`
5			`*`
6			`*/`
7			`#include <linux/module.h>`
8			`#include <linux/kernel.h>`
9			`#include <linux/device.h>`
10			`#include <linux/interrupt.h>`
11			`#include <linux/init.h>`
12			`#include <linux/delay.h>`
13
14			`#include <asm/hardware.h>`
15			`#include <asm/irq.h>`
16			`#include <asm/mach-types.h>`
17			`#include <asm/arch/h3600.h>`
18
19			`#include "sa1100_generic.h"`
20
21			`static struct pcmcia_irqs irqs[] = {`
22			`{ 0, IRQ_GPIO_H3600_PCMCIA_CD0, "PCMCIA CD0" },`
23			`{ 1, IRQ_GPIO_H3600_PCMCIA_CD1, "PCMCIA CD1" }`
24			`};`
25
26			`static int h3600_pcmcia_hw_init(struct soc_pcmcia_socket *skt)`
27			`{`
28			`skt->irq = skt->nr ? IRQ_GPIO_H3600_PCMCIA_IRQ1`
29			`: IRQ_GPIO_H3600_PCMCIA_IRQ0;`
30
31
32			`return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs));`
33			`}`
34
35			`static void h3600_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)`
36			`{`
37			`soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs));`
38
39			`/* Disable CF bus: */`
40			`clr_h3600_egpio(IPAQ_EGPIO_OPT_NVRAM_ON);`
41			`clr_h3600_egpio(IPAQ_EGPIO_OPT_ON);`
42			`set_h3600_egpio(IPAQ_EGPIO_OPT_RESET);`
43			`}`
44
45			`static void`
46			`h3600_pcmcia_socket_state(struct soc_pcmcia_socket skt, struct pcmcia_state state)`
47			`{`
48			`unsigned long levels = GPLR;`
49
50			`switch (skt->nr) {`
51			`case 0:`
52			`state->detect = levels & GPIO_H3600_PCMCIA_CD0 ? 0 : 1;`
53			`state->ready = levels & GPIO_H3600_PCMCIA_IRQ0 ? 1 : 0;`
54			`state->bvd1 = 0;`
55			`state->bvd2 = 0;`
56			`state->wrprot = 0; /* Not available on H3600. */`
57			`state->vs_3v = 0;`
58			`state->vs_Xv = 0;`
59			`break;`
60
61			`case 1:`
62			`state->detect = levels & GPIO_H3600_PCMCIA_CD1 ? 0 : 1;`
63			`state->ready = levels & GPIO_H3600_PCMCIA_IRQ1 ? 1 : 0;`
64			`state->bvd1 = 0;`
65			`state->bvd2 = 0;`
66			`state->wrprot = 0; /* Not available on H3600. */`
67			`state->vs_3v = 0;`
68			`state->vs_Xv = 0;`
69			`break;`
70			`}`
71			`}`
72
73			`static int`
74			`h3600_pcmcia_configure_socket(struct soc_pcmcia_socket skt, const socket_state_t state)`
75			`{`
76			`if (state->Vcc != 0 && state->Vcc != 33 && state->Vcc != 50) {`
77			`printk(KERN_ERR "h3600_pcmcia: unrecognized Vcc %u.%uV\n",`
78			`state->Vcc / 10, state->Vcc % 10);`
79			`return -1;`
80			`}`
81
82			`if (state->flags & SS_RESET)`
83			`set_h3600_egpio(IPAQ_EGPIO_CARD_RESET);`
84			`else`
85			`clr_h3600_egpio(IPAQ_EGPIO_CARD_RESET);`
86
87			`/* Silently ignore Vpp, output enable, speaker enable. */`
88
89			`return 0;`
90			`}`
91
92			`static void h3600_pcmcia_socket_init(struct soc_pcmcia_socket *skt)`
93			`{`
94			`/* Enable CF bus: */`
95			`set_h3600_egpio(IPAQ_EGPIO_OPT_NVRAM_ON);`
96			`set_h3600_egpio(IPAQ_EGPIO_OPT_ON);`
97			`clr_h3600_egpio(IPAQ_EGPIO_OPT_RESET);`
98
99			`msleep(10);`
100
101			`soc_pcmcia_enable_irqs(skt, irqs, ARRAY_SIZE(irqs));`
102			`}`
103
104			`static void h3600_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)`
105			`{`
106			`soc_pcmcia_disable_irqs(skt, irqs, ARRAY_SIZE(irqs));`
107
108			`/*`
109			`* FIXME: This doesn't fit well. We don't have the mechanism in`
110			`* the generic PCMCIA layer to deal with the idea of two sockets`
111			`* on one bus. We rely on the cs.c behaviour shutting down`
112			`* socket 0 then socket 1.`
113			`*/`
114			`if (skt->nr == 1) {`
115			`clr_h3600_egpio(IPAQ_EGPIO_OPT_ON);`
116			`clr_h3600_egpio(IPAQ_EGPIO_OPT_NVRAM_ON);`
117			`/* hmm, does this suck power? */`
118			`set_h3600_egpio(IPAQ_EGPIO_OPT_RESET);`
119			`}`
120			`}`
121
122			`struct pcmcia_low_level h3600_pcmcia_ops = {`
123			`.owner = THIS_MODULE,`
124			`.hw_init = h3600_pcmcia_hw_init,`
125			`.hw_shutdown = h3600_pcmcia_hw_shutdown,`
126			`.socket_state = h3600_pcmcia_socket_state,`
127			`.configure_socket = h3600_pcmcia_configure_socket,`
128
129			`.socket_init = h3600_pcmcia_socket_init,`
130			`.socket_suspend = h3600_pcmcia_socket_suspend,`
131			`};`
132
133			`int __init pcmcia_h3600_init(struct device *dev)`
134			`{`
135			`int ret = -ENODEV;`
136
137			`if (machine_is_h3600())`
138			`ret = sa11xx_drv_pcmcia_probe(dev, &h3600_pcmcia_ops, 0, 2);`
139
140			`return ret;`
141			`}`

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[/] [test_project/] [trunk/] [linux_sd_driver/] [drivers/] [pcmcia/] [sa1100_h3600.c] - Blame information for rev 62