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Simple PCIe FMC carrier SPEC - Software
Commit 6ce1b9d2 authored by Alessandro Rubini's avatar Alessandro Rubini
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kernel/spec-i2c: added static where needed, less verbose

parent a30d9715
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Showing with 4 additions and 7 deletions
kernel/spec-i2c.c
View file @ 6ce1b9d2
......@@ -73,7 +73,7 @@ static void mi2c_stop(struct fmc_device *fmc)
set_sda(fmc, 1);
}
int mi2c_put_byte(struct fmc_device *fmc, int data)
static int mi2c_put_byte(struct fmc_device *fmc, int data)
{
int i;
int ack;
......@@ -95,7 +95,7 @@ int mi2c_put_byte(struct fmc_device *fmc, int data)
return ack ? -EIO : 0; /* ack low == success */
}
int mi2c_get_byte(struct fmc_device *fmc, unsigned char *data, int sendack)
static int mi2c_get_byte(struct fmc_device *fmc, unsigned char *data, int ack)
{
int i;
int indata = 0;
......@@ -111,7 +111,7 @@ int mi2c_get_byte(struct fmc_device *fmc, unsigned char *data, int sendack)
set_scl(fmc, 0);
}
set_sda(fmc, (sendack ? 0 : 1));
set_sda(fmc, (ack ? 0 : 1));
set_scl(fmc, 1);
set_scl(fmc, 0);
set_sda(fmc, 0);
......@@ -131,11 +131,8 @@ int mi2c_scan(struct fmc_device *fmc)
int i, found = 0;
for(i = 0; i < 256; i += 2) {
mi2c_start(fmc);
if(!mi2c_put_byte(fmc, i)) {
pr_info("%s: Found i2c device at 0x%x\n",
KBUILD_MODNAME, i >> 1);
if(!mi2c_put_byte(fmc, i))
found++;
}
mi2c_stop(fmc);
}
return found;
......
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