Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-12-11 13:41:55 +00:00
Code Issues Packages Projects Releases Wiki Activity

[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (6/9)

Browse Source 
Kill all isa-related stuff from i2c_detect, it's not used anymore.

This is one major step in the directiom of merging i2c_probe and
i2c_detect. The last obstacle I can think of is the different way forced
addresses work between sensors and non-sensors i2c drivers. I'll deal
with that in a later patchset.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Jean Delvare 2005-07-19 23:57:54 +02:00 committed by Greg Kroah-Hartman
parent 2d8672c5a6
commit 4926c0d4de
1 changed files with 13 additions and 32 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
drivers/i2c/i2c-sensor-detect.c
View File

@ -25,42 +25,34 @@
#include <linux/i2c-sensor.h>
static unsigned short empty[] = {I2C_CLIENT_END};
static unsigned int empty_isa[] = {I2C_CLIENT_ISA_END};
/* Very inefficient for ISA detects, and won't work for 10-bit addresses! */
/* Won't work for 10-bit addresses! */
int i2c_detect(struct i2c_adapter *adapter,
struct i2c_address_data *address_data,
int (*found_proc) (struct i2c_adapter *, int, int))
{
int addr, i, found, j, err;
struct i2c_force_data *this_force;
int is_isa = i2c_is_isa_adapter(adapter);
int adapter_id =
is_isa ? ANY_I2C_ISA_BUS : i2c_adapter_id(adapter);
int adapter_id = i2c_adapter_id(adapter);
unsigned short *normal_i2c;
unsigned int *normal_isa;
unsigned short *probe;
unsigned short *ignore;
/* Forget it if we can't probe using SMBUS_QUICK */
if ((!is_isa) &&
!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_QUICK))
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_QUICK))
return -1;
/* Use default "empty" list if the adapter doesn't specify any */
normal_i2c = probe = ignore = empty;
normal_isa = empty_isa;
if (address_data->normal_i2c)
normal_i2c = address_data->normal_i2c;
if (address_data->normal_isa)
normal_isa = address_data->normal_isa;
if (address_data->probe)
probe = address_data->probe;
if (address_data->ignore)
ignore = address_data->ignore;
for (addr = 0x00; addr <= (is_isa ? 0xffff : 0x7f); addr++) {
if (!is_isa && i2c_check_addr(adapter, addr))
for (addr = 0x00; addr <= 0x7f; addr++) {
if (i2c_check_addr(adapter, addr))
continue;
/* If it is in one of the force entries, we don't do any
@ -69,7 +61,7 @@ int i2c_detect(struct i2c_adapter *adapter,
for (i = 0; !found && (this_force = address_data->forces + i, this_force->force); i++) {
for (j = 0; !found && (this_force->force[j] != I2C_CLIENT_END); j += 2) {
if ( ((adapter_id == this_force->force[j]) ||
((this_force->force[j] == ANY_I2C_BUS) && !is_isa)) &&
(this_force->force[j] == ANY_I2C_BUS)) &&
(addr == this_force->force[j + 1]) ) {
dev_dbg(&adapter->dev, "found force parameter for adapter %d, addr %04x\n", adapter_id, addr);
if ((err = found_proc(adapter, addr, this_force->kind)))
@ -85,8 +77,7 @@ int i2c_detect(struct i2c_adapter *adapter,
right now */
for (i = 0; !found && (ignore[i] != I2C_CLIENT_END); i += 2) {
if ( ((adapter_id == ignore[i]) ||
((ignore[i] == ANY_I2C_BUS) &&
!is_isa)) &&
(ignore[i] == ANY_I2C_BUS)) &&
(addr == ignore[i + 1])) {
dev_dbg(&adapter->dev, "found ignore parameter for adapter %d, addr %04x\n", adapter_id, addr);
found = 1;
@ -97,19 +88,10 @@ int i2c_detect(struct i2c_adapter *adapter,
/* Now, we will do a detection, but only if it is in the normal or
probe entries */
if (is_isa) {
for (i = 0; !found && (normal_isa[i] != I2C_CLIENT_ISA_END); i += 1) {
if (addr == normal_isa[i]) {
dev_dbg(&adapter->dev, "found normal isa entry for adapter %d, addr %04x\n", adapter_id, addr);
found = 1;
}
}
} else {
for (i = 0; !found && (normal_i2c[i] != I2C_CLIENT_END); i += 1) {
if (addr == normal_i2c[i]) {
found = 1;
dev_dbg(&adapter->dev, "found normal i2c entry for adapter %d, addr %02x\n", adapter_id, addr);
}
for (i = 0; !found && (normal_i2c[i] != I2C_CLIENT_END); i += 1) {
if (addr == normal_i2c[i]) {
found = 1;
dev_dbg(&adapter->dev, "found normal i2c entry for adapter %d, addr %02x\n", adapter_id, addr);
}
}
@ -117,7 +99,7 @@ int i2c_detect(struct i2c_adapter *adapter,
!found && (probe[i] != I2C_CLIENT_END);
i += 2) {
if (((adapter_id == probe[i]) ||
((probe[i] == ANY_I2C_BUS) && !is_isa))
(probe[i] == ANY_I2C_BUS))
&& (addr == probe[i + 1])) {
dev_dbg(&adapter->dev, "found probe parameter for adapter %d, addr %04x\n", adapter_id, addr);
found = 1;
@ -128,8 +110,7 @@ int i2c_detect(struct i2c_adapter *adapter,
/* OK, so we really should examine this address. First check
whether there is some client here at all! */
if (is_isa ||
(i2c_smbus_xfer (adapter, addr, 0, 0, 0, I2C_SMBUS_QUICK, NULL) >= 0))
if (i2c_smbus_xfer(adapter, addr, 0, 0, 0, I2C_SMBUS_QUICK, NULL) >= 0)
if ((err = found_proc(adapter, addr, -1)))
return err;
}