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path: root/ANDROID_3.4.5/drivers/mfd/gmt/gmt-core.c
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Diffstat (limited to 'ANDROID_3.4.5/drivers/mfd/gmt/gmt-core.c')
-rwxr-xr-xANDROID_3.4.5/drivers/mfd/gmt/gmt-core.c285
1 files changed, 0 insertions, 285 deletions
diff --git a/ANDROID_3.4.5/drivers/mfd/gmt/gmt-core.c b/ANDROID_3.4.5/drivers/mfd/gmt/gmt-core.c
deleted file mode 100755
index c50987fc..00000000
--- a/ANDROID_3.4.5/drivers/mfd/gmt/gmt-core.c
+++ /dev/null
@@ -1,285 +0,0 @@
-/*++
- drivers/mtd/gmt/gmt-core.c - GMT Core driver
-
- Copyright (c) 2013 WonderMedia Technologies, Inc.
-
- 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, see <http://www.gnu.org/licenses/>.
-
- WonderMedia Technologies, Inc.
- 10F, 529, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C.
---*/
-
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/init.h>
-#include <linux/err.h>
-#include <linux/slab.h>
-#include <linux/i2c.h>
-#include <linux/interrupt.h>
-#include <linux/pm_runtime.h>
-#include <linux/mutex.h>
-#include <linux/mfd/core.h>
-#include <mach/gmt-core.h>
-#include <linux/regmap.h>
-
-static struct mfd_cell gmt_devs[] = {
- {
- .name = "gmt-pmic",
- }, {
- .name = "gmt-charger",
- },
-};
-
-int gmt2214_reg_read(struct gmt2214_dev *gmt2214, u8 reg, void *dest)
-{
- struct i2c_msg msg[2];
- unsigned char data[4];
- int err;
- struct i2c_client *client;
-
- client = gmt2214->i2c;
-
- if (!client || !client->adapter)
- return -ENODEV;
-
- if (!dest)
- return -EINVAL;
-
- data[0] = reg;
- msg[0].addr = client->addr;
- msg[0].flags = 0 | I2C_M_NOSTART;
- msg[0].len = 1;
- msg[0].buf = (unsigned char *)data;
-
- msg[1].addr = client->addr;
- msg[1].flags = (I2C_M_RD);
- msg[1].len = 1;
- msg[1].buf = (unsigned char *)dest;
-
- err = i2c_transfer(client->adapter, msg, sizeof(msg)/sizeof(struct i2c_msg));
- return err;
-}
-EXPORT_SYMBOL_GPL(gmt2214_reg_read);
-
-int gmt2214_reg_write(struct gmt2214_dev *gmt2214, u8 reg, u8 value)
-{
- unsigned char buffer4Write[256];
- struct i2c_client *client = gmt2214->i2c;
- struct i2c_msg msgs[1] = {
- {
- .addr = client->addr,
- .flags = 0,
- .len = 2,
- .buf = buffer4Write
- }
- };
-
- buffer4Write[0] = reg;
- buffer4Write[1] = value;
-
- return i2c_transfer(client->adapter, msgs, 1);
-
-}
-EXPORT_SYMBOL_GPL(gmt2214_reg_write);
-
-static struct regmap_config gmt2214_regmap_config = {
- .reg_bits = 8,
- .val_bits = 8,
-};
-
-static int gmt2214_i2c_probe(struct i2c_client *i2c,
- const struct i2c_device_id *id)
-{
- struct gmt2214_platform_data *pdata = i2c->dev.platform_data;
- struct gmt2214_dev *gmt2214;
- int ret;
-
- gmt2214 = devm_kzalloc(&i2c->dev, sizeof(struct gmt2214_dev),
- GFP_KERNEL);
- if (gmt2214 == NULL)
- return -ENOMEM;
-
- i2c_set_clientdata(i2c, gmt2214);
- gmt2214->dev = &i2c->dev;
- gmt2214->i2c = i2c;
-
- if (pdata)
- gmt2214->device_type = pdata->device_type;
-
- gmt2214->regmap = regmap_init_i2c(i2c, &gmt2214_regmap_config);
- if (IS_ERR(gmt2214->regmap)) {
- ret = PTR_ERR(gmt2214->regmap);
- dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
- ret);
- goto err;
- }
-
- pm_runtime_set_active(gmt2214->dev);
-
- ret = mfd_add_devices(gmt2214->dev, -1, gmt_devs,
- ARRAY_SIZE(gmt_devs), NULL, 0);
-
- if (ret < 0)
- goto err;
-
- return ret;
-
-err:
- mfd_remove_devices(gmt2214->dev);
- regmap_exit(gmt2214->regmap);
- return ret;
-}
-
-static int gmt2214_i2c_remove(struct i2c_client *i2c)
-{
- struct gmt2214_dev *gmt2214 = i2c_get_clientdata(i2c);
-
- mfd_remove_devices(gmt2214->dev);
- regmap_exit(gmt2214->regmap);
- return 0;
-}
-
-static struct i2c_board_info gmt_i2c_board_info = {
- .type = "gmt2214",
- .flags = 0x00,
- .addr = 0x12,
- .platform_data = NULL,
- .archdata = NULL,
- .irq = -1,
-};
-
-static const struct i2c_device_id gmt2214_i2c_id[] = {
- {"gmt2214", 0},
- {}
-};
-MODULE_DEVICE_TABLE(i2c, gmt2214_i2c_id);
-
-static struct i2c_driver gmt2214_i2c_driver = {
- .driver = {
- .name = "gmt2214",
- .owner = THIS_MODULE,
- },
- .probe = gmt2214_i2c_probe,
- .remove = gmt2214_i2c_remove,
- .id_table = gmt2214_i2c_id,
-};
-
-extern int wmt_getsyspara(char *varname, unsigned char *varval, int *varlen);
-
-#define par_len 80
-static unsigned int g_i2cbus_id = 3;
-static unsigned int g_pmic_en = 0;
-
-static int parse_pmic_param(void)
-{
- int retval;
- unsigned char buf[par_len];
- unsigned char tmp_buf[par_len];
- unsigned int delay_time;
- int i = 0;
- int j = 0;
- int varlen = par_len;
- char *varname = "wmt.pmic.param";
- unsigned int pmic_en = 0;
- retval = wmt_getsyspara(varname, buf, &varlen);
- if (retval == 0) {
- pmic_en = (buf[i] - '0' == 1)?1:0;
- if (pmic_en == 0) {/*disable*/
- g_pmic_en = 0;
- return -1;
- }
- i += 2;
- for (; i < par_len; ++i) {
- if (buf[i] == ':')
- break;
- tmp_buf[j] = buf[i];
- ++j;
- }
- if (strncmp(tmp_buf,"gmt2214",7)) {
- g_pmic_en = 0;
- return -1;
- }
- ++i;
-
- sscanf((buf + i), "%d:%d", &g_i2cbus_id, &delay_time);
- } else {
- g_pmic_en = 0;
- return -1;
- }
- g_pmic_en = 1;
- return 0;
-}
-
-static unsigned int g_chg_en = 0;
-int parse_charger_param(void)
-{
- int retval;
- unsigned char buf[240];
- int varlen = par_len;
- //char *varname = "wmt.io.chg";
- char *varname = "wmt.charger.param";
- retval = wmt_getsyspara(varname, buf, &varlen);
- if (retval == 0) {
- g_chg_en = (buf[0] - '0' == 1)?1:0;
- if (g_chg_en == 0)
- return -1;
- if (strncmp((buf + 2), "g2214", 5)) {
- g_chg_en = 0;
- return -1;
- }
- } else {
- g_chg_en = 0;
- return -1;
- }
- g_chg_en = 1;
- return 1;
-}
-static int __init gmt2214_i2c_init(void)
-{
- struct i2c_board_info *gmt2214_i2c_bi;
- struct i2c_adapter *adapter = NULL;
- struct i2c_client *client = NULL;
-
- parse_pmic_param();
- parse_charger_param();
- if (g_pmic_en == 0 && g_chg_en == 0) {
- printk("Don't support GMT2214\n");
- return -ENODEV;
- }
- gmt2214_i2c_bi = &gmt_i2c_board_info;
- adapter = i2c_get_adapter(g_i2cbus_id);/*in bus 3*/
-
- if (NULL == adapter) {
- printk("can not get i2c adapter, client address error\n");
- return -ENODEV;
- }
-
- client = i2c_new_device(adapter, gmt2214_i2c_bi);
- if (client == NULL) {
- printk("allocate i2c client failed\n");
- return -ENODEV;
- }
- i2c_put_adapter(adapter);
-
- return i2c_add_driver(&gmt2214_i2c_driver);
-}
-
-subsys_initcall_sync(gmt2214_i2c_init);
-
-static void __exit gmt2214_i2c_exit(void)
-{
- i2c_del_driver(&gmt2214_i2c_driver);
-}
-module_exit(gmt2214_i2c_exit);
-
-MODULE_AUTHOR("WonderMedia Technologies, Inc.");
-MODULE_DESCRIPTION("GMT2214 Core Driver");
-MODULE_LICENSE("GPL");
generated by cgit (git 2.34.1) at 2025-03-12 15:12:15 +0000