Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/i2c/i2c-sensor-detect.c b/drivers/i2c/i2c-sensor-detect.c
new file mode 100644
index 0000000..f99a816
--- /dev/null
+++ b/drivers/i2c/i2c-sensor-detect.c
@@ -0,0 +1,145 @@
+/*
+ i2c-sensor-detect.c - Part of lm_sensors, Linux kernel modules for hardware
+ monitoring
+ Copyright (c) 1998 - 2001 Frodo Looijaard <frodol@dds.nl> and
+ Mark D. Studebaker <mdsxyz123@yahoo.com>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/i2c.h>
+#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! */
+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);
+ 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))
+ 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))
+ continue;
+
+ /* If it is in one of the force entries, we don't do any
+ detection at all */
+ found = 0;
+ 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)) &&
+ (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)))
+ return err;
+ found = 1;
+ }
+ }
+ }
+ if (found)
+ continue;
+
+ /* If this address is in one of the ignores, we can forget about it
+ 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)) &&
+ (addr == ignore[i + 1])) {
+ dev_dbg(&adapter->dev, "found ignore parameter for adapter %d, addr %04x\n", adapter_id, addr);
+ found = 1;
+ }
+ }
+ if (found)
+ continue;
+
+ /* 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 && (probe[i] != I2C_CLIENT_END);
+ i += 2) {
+ if (((adapter_id == probe[i]) ||
+ ((probe[i] == ANY_I2C_BUS) && !is_isa))
+ && (addr == probe[i + 1])) {
+ dev_dbg(&adapter->dev, "found probe parameter for adapter %d, addr %04x\n", adapter_id, addr);
+ found = 1;
+ }
+ }
+ if (!found)
+ continue;
+
+ /* 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 ((err = found_proc(adapter, addr, -1)))
+ return err;
+ }
+ return 0;
+}
+
+EXPORT_SYMBOL(i2c_detect);
+
+MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, "
+ "Rudolf Marek <r.marek@sh.cvut.cz>");
+
+MODULE_DESCRIPTION("i2c-sensor driver");
+MODULE_LICENSE("GPL");