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reassign address on write to /proc

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git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@1426 7894878c-1315-0410-8ee3-d5d059ff63e0
This commit is contained in:
Mark D. Studebaker committed 2002-07-06 01:36:04 +00:00
1 parent 2a5816a24c
commit 81a7bd8025
2 files changed
+108 -10
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kernel/chips/smbus-arp.c
+42 -10
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@@ -91,6 +91,7 @@ static u8 reserved[] =
#define ARP_MAX_DEVICES 8
struct arp_device {
int status;
u8 udid[UDID_LENGTH];
u8 dev_cap;
u8 dev_ver;
u16 dev_vid;
@@ -152,21 +153,21 @@ static struct i2c_driver smbusarp_driver = {
};
static ctl_table smbusarp_dir_table_template[] = {
{ARP_SYSCTL1, "0", NULL, 0, 0444, NULL, &i2c_proc_real,
{ARP_SYSCTL1, "0", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &smbusarp_contents},
{ARP_SYSCTL2, "1", NULL, 0, 0444, NULL, &i2c_proc_real,
{ARP_SYSCTL2, "1", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &smbusarp_contents},
{ARP_SYSCTL3, "2", NULL, 0, 0444, NULL, &i2c_proc_real,
{ARP_SYSCTL3, "2", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &smbusarp_contents},
{ARP_SYSCTL4, "3", NULL, 0, 0444, NULL, &i2c_proc_real,
{ARP_SYSCTL4, "3", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &smbusarp_contents},
{ARP_SYSCTL5, "4", NULL, 0, 0444, NULL, &i2c_proc_real,
{ARP_SYSCTL5, "4", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &smbusarp_contents},
{ARP_SYSCTL6, "5", NULL, 0, 0444, NULL, &i2c_proc_real,
{ARP_SYSCTL6, "5", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &smbusarp_contents},
{ARP_SYSCTL7, "6", NULL, 0, 0444, NULL, &i2c_proc_real,
{ARP_SYSCTL7, "6", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &smbusarp_contents},
{ARP_SYSCTL8, "7", NULL, 0, 0444, NULL, &i2c_proc_real,
{ARP_SYSCTL8, "7", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &smbusarp_contents},
{0}
};
@@ -387,6 +388,9 @@ int smbusarp_init_client(struct i2c_client *client)
}
}
/* store things both ways */
for(i = 0; i < UDID_LENGTH; i++)
data->dev[newdev].udid[i] = blk[i];
data->dev[newdev].saddr = addr;
data->dev[newdev].status = ARP_BUSY;
data->dev[newdev].dev_cap = blk[0];
@@ -424,12 +428,15 @@ int smbusarp_init_client(struct i2c_client *client)
}
/* reassign address on writex */
void smbusarp_contents(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results)
{
int nr = ctl_name - ARP_SYSCTL1;
struct arp_data *data = client->data;
int ret;
u8 save;
u8 a;
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 0;
@@ -449,9 +456,34 @@ void smbusarp_contents(struct i2c_client *client, int operation,
*nrels_mag = 0;
}
} else if (operation == SENSORS_PROC_REAL_WRITE) {
printk(KERN_WARNING "smbus-arp.o: No writes supported!\n");
a = results[0];
if(*nrels_mag >= 1 &&
a >= 0 &&
a < SMBUS_ADDRESS_SIZE &&
data->dev[nr].status == ARP_BUSY &&
data->address_pool[a] == ARP_FREE) {
save = data->dev[nr].udid[16];
data->dev[nr].udid[16] = a << 1;
ret = i2c_smbus_write_block_data(client, ARP_ASSIGN_ADDR,
UDID_LENGTH, data->dev[nr].udid);
if(ret) {
data->dev[nr].udid[16] = save;
#ifdef DEBUG
printk(KERN_DEBUG "smbus-arp Bad response, address 0x%02x not assigned\n", a);
#endif
} else {
data->dev[nr].saddr = a;
data->address_pool[a] = ARP_BUSY;
#ifdef DEBUG
printk(KERN_DEBUG "smbus-arp Assigned address 0x%02x\n", a);
#endif
}
} else {
printk(KERN_WARNING "smbus-arp Bad address 0x%02x\n", a);
}
}
}
int __init sensors_smbusarp_init(void)
{
int res;