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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [drivers/] [pcmcia/] [au1000_xxs1500.c] - Blame information for rev 1774

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/*
 *
 * MyCable board specific pcmcia routines.
 *
 * Copyright 2003 MontaVista Software Inc.
 * Author: Pete Popov, MontaVista Software, Inc.
 *              ppopov@mvista.com or source@mvista.com
 *
 * ########################################################################
 *
 *  This program is free software; you can distribute it and/or modify it
 *  under the terms of the GNU General Public License (Version 2) as
 *  published by the Free Software Foundation.
 *
 *  This program is distributed in the hope it will be useful, but WITHOUT
 *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 *  for more details.
 *
 *  You should have received a copy of the GNU General Public License along
 *  with this program; if not, write to the Free Software Foundation, Inc.,
 *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
 *
 * ########################################################################
 *
 *
 */
#include <linux/module.h>
#include <linux/init.h>
#include <linux/config.h>
#include <linux/delay.h>
#include <linux/ioport.h>
#include <linux/kernel.h>
#include <linux/tqueue.h>
#include <linux/timer.h>
#include <linux/mm.h>
#include <linux/proc_fs.h>
#include <linux/version.h>
#include <linux/types.h>
 
#include <pcmcia/version.h>
#include <pcmcia/cs_types.h>
#include <pcmcia/cs.h>
#include <pcmcia/ss.h>
#include <pcmcia/bulkmem.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/bus_ops.h>
#include "cs_internal.h"
 
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/system.h>
 
#include <asm/au1000.h>
#include <asm/au1000_pcmcia.h>
#include <asm/xxs1500.h>
 
#if 0
#define DEBUG(x,args...)        printk(__FUNCTION__ ": " x,##args)
#else
#define DEBUG(x,args...)
#endif
 
static int xxs1500_pcmcia_init(struct pcmcia_init *init)
{
        return PCMCIA_NUM_SOCKS;
}
 
static int xxs1500_pcmcia_shutdown(void)
{
        /* turn off power */
        au_writel(au_readl(GPIO2_PINSTATE) | (1<<14)|(1<<30),
                        GPIO2_OUTPUT);
        au_sync_delay(100);
 
        /* assert reset */
        au_writel(au_readl(GPIO2_PINSTATE) | (1<<4)|(1<<20),
                        GPIO2_OUTPUT);
        au_sync_delay(100);
        return 0;
}
 
 
static int
xxs1500_pcmcia_socket_state(unsigned sock, struct pcmcia_state *state)
{
        u32 inserted; u32 vs;
        unsigned long gpio, gpio2;
 
        if(sock > PCMCIA_MAX_SOCK) return -1;
 
        gpio = au_readl(SYS_PINSTATERD);
        gpio2 = au_readl(GPIO2_PINSTATE);
 
        vs = gpio2 & ((1<<8) | (1<<9));
        inserted = (!(gpio & 0x1) && !(gpio & 0x2));
 
        state->ready = 0;
        state->vs_Xv = 0;
        state->vs_3v = 0;
        state->detect = 0;
 
        if (inserted) {
                switch (vs) {
                        case 0:
                        case 1:
                        case 2:
                                state->vs_3v=1;
                                break;
                        case 3: /* 5V */
                        default:
                                /* return without setting 'detect' */
                                printk(KERN_ERR "au1x00_cs: unsupported VS\n",
                                                vs);
                                return;
                }
                state->detect = 1;
        }
 
        if (state->detect) {
                state->ready = 1;
        }
 
        state->bvd1= gpio2 & (1<<10);
        state->bvd2 = gpio2 & (1<<11);
        state->wrprot=0;
        return 1;
}
 
 
static int xxs1500_pcmcia_get_irq_info(struct pcmcia_irq_info *info)
{
 
        if(info->sock > PCMCIA_MAX_SOCK) return -1;
        info->irq = PCMCIA_IRQ;
        return 0;
}
 
 
static int
xxs1500_pcmcia_configure_socket(const struct pcmcia_configure *configure)
{
 
        if(configure->sock > PCMCIA_MAX_SOCK) return -1;
 
        DEBUG("Vcc %dV Vpp %dV, reset %d\n",
                        configure->vcc, configure->vpp, configure->reset);
 
        switch(configure->vcc){
                case 33: /* Vcc 3.3V */
                        /* turn on power */
                        DEBUG("turn on power\n");
                        au_writel((au_readl(GPIO2_PINSTATE) & ~(1<<14))|(1<<30),
                                        GPIO2_OUTPUT);
                        au_sync_delay(100);
                        break;
                case 50: /* Vcc 5V */
                default: /* what's this ? */
                        printk(KERN_ERR "au1x00_cs: unsupported VCC\n");
                case 0:  /* Vcc 0 */
                        /* turn off power */
                        au_sync_delay(100);
                        au_writel(au_readl(GPIO2_PINSTATE) | (1<<14)|(1<<30),
                                        GPIO2_OUTPUT);
                        break;
        }
 
        if (!configure->reset) {
                DEBUG("deassert reset\n");
                au_writel((au_readl(GPIO2_PINSTATE) & ~(1<<4))|(1<<20),
                                GPIO2_OUTPUT);
                au_sync_delay(100);
                au_writel((au_readl(GPIO2_PINSTATE) & ~(1<<5))|(1<<21),
                                GPIO2_OUTPUT);
        }
        else {
                DEBUG("assert reset\n");
                au_writel(au_readl(GPIO2_PINSTATE) | (1<<4)|(1<<20),
                                GPIO2_OUTPUT);
        }
        au_sync_delay(100);
        return 0;
}
 
struct pcmcia_low_level xxs1500_pcmcia_ops = {
        xxs1500_pcmcia_init,
        xxs1500_pcmcia_shutdown,
        xxs1500_pcmcia_socket_state,
        xxs1500_pcmcia_get_irq_info,
        xxs1500_pcmcia_configure_socket
};

Line No.	Rev	Author	Line
1	1275	phoenix	`/*`
2			`*`
3			`* MyCable board specific pcmcia routines.`
4			`*`
5			`* Copyright 2003 MontaVista Software Inc.`
6			`* Author: Pete Popov, MontaVista Software, Inc.`
7			`* ppopov@mvista.com or source@mvista.com`
8			`*`
9			`* ########################################################################`
10			`*`
11			`* This program is free software; you can distribute it and/or modify it`
12			`* under the terms of the GNU General Public License (Version 2) as`
13			`* published by the Free Software Foundation.`
14			`*`
15			`* This program is distributed in the hope it will be useful, but WITHOUT`
16			`* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or`
17			`* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License`
18			`* for more details.`
19			`*`
20			`* You should have received a copy of the GNU General Public License along`
21			`* with this program; if not, write to the Free Software Foundation, Inc.,`
22			`* 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.`
23			`*`
24			`* ########################################################################`
25			`*`
26			`*`
27			`*/`
28			`#include <linux/module.h>`
29			`#include <linux/init.h>`
30			`#include <linux/config.h>`
31			`#include <linux/delay.h>`
32			`#include <linux/ioport.h>`
33			`#include <linux/kernel.h>`
34			`#include <linux/tqueue.h>`
35			`#include <linux/timer.h>`
36			`#include <linux/mm.h>`
37			`#include <linux/proc_fs.h>`
38			`#include <linux/version.h>`
39			`#include <linux/types.h>`
40
41			`#include <pcmcia/version.h>`
42			`#include <pcmcia/cs_types.h>`
43			`#include <pcmcia/cs.h>`
44			`#include <pcmcia/ss.h>`
45			`#include <pcmcia/bulkmem.h>`
46			`#include <pcmcia/cistpl.h>`
47			`#include <pcmcia/bus_ops.h>`
48			`#include "cs_internal.h"`
49
50			`#include <asm/io.h>`
51			`#include <asm/irq.h>`
52			`#include <asm/system.h>`
53
54			`#include <asm/au1000.h>`
55			`#include <asm/au1000_pcmcia.h>`
56			`#include <asm/xxs1500.h>`
57
58			`#if 0`
59			`#define DEBUG(x,args...) printk(__FUNCTION__ ": " x,##args)`
60			`#else`
61			`#define DEBUG(x,args...)`
62			`#endif`
63
64			`static int xxs1500_pcmcia_init(struct pcmcia_init *init)`
65			`{`
66			`return PCMCIA_NUM_SOCKS;`
67			`}`
68
69			`static int xxs1500_pcmcia_shutdown(void)`
70			`{`
71			`/* turn off power */`
72			`au_writel(au_readl(GPIO2_PINSTATE) \| (1<<14)\|(1<<30),`
73			`GPIO2_OUTPUT);`
74			`au_sync_delay(100);`
75
76			`/* assert reset */`
77			`au_writel(au_readl(GPIO2_PINSTATE) \| (1<<4)\|(1<<20),`
78			`GPIO2_OUTPUT);`
79			`au_sync_delay(100);`
80			`return 0;`
81			`}`
82
83
84			`static int`
85			`xxs1500_pcmcia_socket_state(unsigned sock, struct pcmcia_state *state)`
86			`{`
87			`u32 inserted; u32 vs;`
88			`unsigned long gpio, gpio2;`
89
90			`if(sock > PCMCIA_MAX_SOCK) return -1;`
91
92			`gpio = au_readl(SYS_PINSTATERD);`
93			`gpio2 = au_readl(GPIO2_PINSTATE);`
94
95			`vs = gpio2 & ((1<<8) \| (1<<9));`
96			`inserted = (!(gpio & 0x1) && !(gpio & 0x2));`
97
98			`state->ready = 0;`
99			`state->vs_Xv = 0;`
100			`state->vs_3v = 0;`
101			`state->detect = 0;`
102
103			`if (inserted) {`
104			`switch (vs) {`
105			`case 0:`
106			`case 1:`
107			`case 2:`
108			`state->vs_3v=1;`
109			`break;`
110			`case 3: /* 5V */`
111			`default:`
112			`/* return without setting 'detect' */`
113			`printk(KERN_ERR "au1x00_cs: unsupported VS\n",`
114			`vs);`
115			`return;`
116			`}`
117			`state->detect = 1;`
118			`}`
119
120			`if (state->detect) {`
121			`state->ready = 1;`
122			`}`
123
124			`state->bvd1= gpio2 & (1<<10);`
125			`state->bvd2 = gpio2 & (1<<11);`
126			`state->wrprot=0;`
127			`return 1;`
128			`}`
129
130
131			`static int xxs1500_pcmcia_get_irq_info(struct pcmcia_irq_info *info)`
132			`{`
133
134			`if(info->sock > PCMCIA_MAX_SOCK) return -1;`
135			`info->irq = PCMCIA_IRQ;`
136			`return 0;`
137			`}`
138
139
140			`static int`
141			`xxs1500_pcmcia_configure_socket(const struct pcmcia_configure *configure)`
142			`{`
143
144			`if(configure->sock > PCMCIA_MAX_SOCK) return -1;`
145
146			`DEBUG("Vcc %dV Vpp %dV, reset %d\n",`
147			`configure->vcc, configure->vpp, configure->reset);`
148
149			`switch(configure->vcc){`
150			`case 33: /* Vcc 3.3V */`
151			`/* turn on power */`
152			`DEBUG("turn on power\n");`
153			`au_writel((au_readl(GPIO2_PINSTATE) & ~(1<<14))\|(1<<30),`
154			`GPIO2_OUTPUT);`
155			`au_sync_delay(100);`
156			`break;`
157			`case 50: /* Vcc 5V */`
158			`default: /* what's this ? */`
159			`printk(KERN_ERR "au1x00_cs: unsupported VCC\n");`
160			`case 0: /* Vcc 0 */`
161			`/* turn off power */`
162			`au_sync_delay(100);`
163			`au_writel(au_readl(GPIO2_PINSTATE) \| (1<<14)\|(1<<30),`
164			`GPIO2_OUTPUT);`
165			`break;`
166			`}`
167
168			`if (!configure->reset) {`
169			`DEBUG("deassert reset\n");`
170			`au_writel((au_readl(GPIO2_PINSTATE) & ~(1<<4))\|(1<<20),`
171			`GPIO2_OUTPUT);`
172			`au_sync_delay(100);`
173			`au_writel((au_readl(GPIO2_PINSTATE) & ~(1<<5))\|(1<<21),`
174			`GPIO2_OUTPUT);`
175			`}`
176			`else {`
177			`DEBUG("assert reset\n");`
178			`au_writel(au_readl(GPIO2_PINSTATE) \| (1<<4)\|(1<<20),`
179			`GPIO2_OUTPUT);`
180			`}`
181			`au_sync_delay(100);`
182			`return 0;`
183			`}`
184
185			`struct pcmcia_low_level xxs1500_pcmcia_ops = {`
186			`xxs1500_pcmcia_init,`
187			`xxs1500_pcmcia_shutdown,`
188			`xxs1500_pcmcia_socket_state,`
189			`xxs1500_pcmcia_get_irq_info,`
190			`xxs1500_pcmcia_configure_socket`
191			`};`

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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [drivers/] [pcmcia/] [au1000_xxs1500.c] - Blame information for rev 1774