diff options
Diffstat (limited to 'drivers/barcode_emul/barcode_emul_ice4.c')
| -rwxr-xr-x | drivers/barcode_emul/barcode_emul_ice4.c | 626 |
1 files changed, 0 insertions, 626 deletions
diff --git a/drivers/barcode_emul/barcode_emul_ice4.c b/drivers/barcode_emul/barcode_emul_ice4.c deleted file mode 100755 index 7032e6e..0000000 --- a/drivers/barcode_emul/barcode_emul_ice4.c +++ /dev/null @@ -1,626 +0,0 @@ -/* - * driver/barcode_emul Barcode emulator driver - * - * Copyright (C) 2012 Samsung Electronics - * - * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/err.h> -#include <linux/i2c.h> -#include <linux/irq.h> -#include <linux/interrupt.h> -#include <linux/platform_device.h> -#include <linux/slab.h> -#include <linux/delay.h> -#include <linux/workqueue.h> -#include <linux/device.h> -#include <linux/earlysuspend.h> -#include <linux/spinlock.h> -#include <linux/gpio.h> -#include <linux/uaccess.h> -#include <linux/fs.h> -#include "barcode_emul_ice4.h" - -#if defined(TEST_DEBUG) -#define pr_barcode pr_emerg -#else -#define pr_barcode pr_info -#endif - -#define LOOP_BACK 48 -#define TEST_CODE1 49 -#define TEST_CODE2 50 -#define FW_VER_ADDR 0x80 -#define BEAM_STATUS_ADDR 0xFE -#define BARCODE_EMUL_MAX_FW_PATH 255 -#define BARCODE_EMUL_FW_FILENAME "i2c_top_bitmap.bin" - -struct barcode_emul_data { - struct i2c_client *client; -}; - -static struct workqueue_struct *barcode_init_wq; -static void barcode_init_workfunc(struct work_struct *work); -static DECLARE_WORK(barcode_init_work, barcode_init_workfunc); -/* - * Send barcode emulator firmware data thougth spi communication - */ -static int barcode_send_firmware_data(unsigned char *data) -{ - unsigned int i,j; - unsigned char spibit; - - i=0; - while (i < CONFIGURATION_SIZE) { - j=0; - spibit = data[i]; - while (j < 8) { - gpio_set_value(GPIO_FPGA_SPI_CLK,GPIO_LEVEL_LOW); - - if (spibit & 0x80) - { - gpio_set_value(GPIO_FPGA_SPI_SI,GPIO_LEVEL_HIGH); - } - else - { - gpio_set_value(GPIO_FPGA_SPI_SI,GPIO_LEVEL_LOW); - } - - j = j+1; - gpio_set_value(GPIO_FPGA_SPI_CLK,GPIO_LEVEL_HIGH); - spibit = spibit<<1; - } - i = i+1; - } - - i = 0; - while (i < 200) { - gpio_set_value(GPIO_FPGA_SPI_CLK,GPIO_LEVEL_LOW); - i = i+1; - gpio_set_value(GPIO_FPGA_SPI_CLK,GPIO_LEVEL_HIGH); - } - return 0; -} - -static int check_fpga_cdone(void) -{ - /* Device in Operation when CDONE='1'; Device Failed when CDONE='0'. */ - if (gpio_get_value(GPIO_FPGA_CDONE) != 1) { - pr_barcode("CDONE_FAIL\n"); - return 0; - } else { - pr_barcode("CDONE_SUCCESS\n"); - return 1; - } -} - -static int barcode_fpga_fimrware_update_start(unsigned char *data) -{ - pr_barcode("%s\n", __func__); - - gpio_request_one(GPIO_FPGA_CDONE, GPIOF_IN, "FPGA_CDONE"); - gpio_request_one(GPIO_FPGA_SPI_CLK, GPIOF_OUT_INIT_LOW, "FPGA_SPI_CLK"); - gpio_request_one(GPIO_FPGA_SPI_SI, GPIOF_OUT_INIT_LOW, "FPGA_SPI_SI"); - gpio_request_one(GPIO_FPGA_SPI_EN, GPIOF_OUT_INIT_LOW, "FPGA_SPI_EN"); - gpio_request_one(GPIO_FPGA_CRESET_B, GPIOF_OUT_INIT_HIGH, "FPGA_CRESET_B"); - gpio_request_one(GPIO_FPGA_RST_N, GPIOF_OUT_INIT_LOW, "FPGA_RST_N"); - - gpio_set_value(GPIO_FPGA_CRESET_B, GPIO_LEVEL_LOW); - udelay(30); - - gpio_set_value(GPIO_FPGA_CRESET_B, GPIO_LEVEL_HIGH); - udelay(1000); - - check_fpga_cdone(); - - barcode_send_firmware_data(data); - udelay(50); - - if (check_fpga_cdone()) { - udelay(5); - gpio_set_value(GPIO_FPGA_RST_N, GPIO_LEVEL_HIGH); - pr_barcode("barcode firmware update success\n"); - } else { - pr_barcode("barcode firmware update fail\n"); - } - return 0; -} - -void barcode_fpga_firmware_update(void) -{ - barcode_fpga_fimrware_update_start(spiword); -} - -static ssize_t barcode_emul_store(struct device *dev, struct device_attribute *attr, - const char *buf, size_t size) -{ - int ret; - struct barcode_emul_data *data = dev_get_drvdata(dev); - struct i2c_client *client = data->client; - - if (gpio_get_value(GPIO_FPGA_CDONE) != 1) { - pr_err("%s: cdone fail !!\n", __func__); - return 0; - } - - ret = i2c_master_send(client, buf, size); - if (ret < 0) { - pr_err("%s: i2c err1 %d\n", __func__, ret); - ret = i2c_master_send(client, buf, size); - if (ret < 0) - pr_err("%s: i2c err2 %d\n", __func__, ret); - } - - return size; -} - -static ssize_t barcode_emul_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - return strlen(buf); -} -static DEVICE_ATTR(barcode_send, 0664, barcode_emul_show, barcode_emul_store); - -static ssize_t barcode_emul_fw_update_store(struct device *dev, struct device_attribute *attr, - const char *buf, size_t size) -{ - struct file *fp = NULL; - long fsize = 0, nread = 0; - const u8 *buff = 0; - char fw_path[BARCODE_EMUL_MAX_FW_PATH+1]; - mm_segment_t old_fs = get_fs(); - - pr_barcode("%s\n", __func__); - - old_fs = get_fs(); - set_fs(get_ds()); - - snprintf(fw_path, BARCODE_EMUL_MAX_FW_PATH, - "/sdcard/%s", BARCODE_EMUL_FW_FILENAME); - - fp = filp_open(fw_path, O_RDONLY, 0); - if (IS_ERR(fp)) { - pr_err("file %s open error:%d\n", - fw_path, (s32)fp); - goto err_open; - } - - fsize = fp->f_path.dentry->d_inode->i_size; - pr_barcode("barcode firmware size: %ld\n", fsize); - - buff = kzalloc((size_t)fsize, GFP_KERNEL); - if (!buff) { - pr_err("fail to alloc buffer for fw\n"); - goto err_alloc; - } - - nread = vfs_read(fp, (char __user *)buff, fsize, &fp->f_pos); - if (nread != fsize) { - pr_err("fail to read file %s (nread = %ld)\n", - fw_path, nread); - goto err_fw_size; - } - - barcode_fpga_fimrware_update_start((unsigned char *)buff); - - if (fp != NULL) { - err_fw_size: - kfree(buff); - err_alloc: - filp_close(fp, NULL); - err_open: - set_fs(old_fs); - } - - return size; -} - -static ssize_t barcode_emul_fw_update_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - return strlen(buf); -} -static DEVICE_ATTR(barcode_fw_update, 0664, barcode_emul_fw_update_show, barcode_emul_fw_update_store); - -static int barcode_emul_read(struct i2c_client *client, u16 addr, u8 length, u8 *value) -{ - - struct i2c_msg msg[2]; - int ret; - - msg[0].addr = client->addr; - msg[0].flags = 0x00; - msg[0].len = 1; - msg[0].buf = (u8 *) &addr; - - msg[1].addr = client->addr; - msg[1].flags = I2C_M_RD; - msg[1].len = length; - msg[1].buf = (u8 *) value; - - ret = i2c_transfer(client->adapter, msg, 2); - if (ret == 2) { - return 0; - } else { - pr_barcode("%s: err1 %d\n", __func__, ret); - return -EIO; - } -} - -static ssize_t barcode_emul_test_store(struct device *dev, struct device_attribute *attr, - const char *buf, size_t size) -{ - int ret, i; - struct barcode_emul_data *data = dev_get_drvdata(dev); - struct i2c_client *client = data->client; - struct { - unsigned char addr; - unsigned char data[20]; - } i2c_block_transfer; - unsigned char barcode_data[14] = {0xFF, 0xAC, 0xDB, 0x36, 0x42, 0x85, 0x0A, 0xA8, 0xD1, 0xA3, 0x46, 0xC5, 0xDA, 0xFF}; - - if (gpio_get_value(GPIO_FPGA_CDONE) != 1) { - pr_err("%s: cdone fail !!\n", __func__); - return 0; - } - - if (buf[0] == LOOP_BACK) { - for (i = 0; i < size; i++) - i2c_block_transfer.data[i] = *buf++; - - i2c_block_transfer.addr = 0x01; - - pr_barcode("%s: write addr: %d, value: %d\n", __func__, - i2c_block_transfer.addr, i2c_block_transfer.data[0]); - - ret = i2c_master_send(client, (unsigned char *) &i2c_block_transfer, 2); - if (ret < 0) { - pr_barcode("%s: err1 %d\n", __func__, ret); - ret = i2c_master_send(client, (unsigned char *) &i2c_block_transfer, 2); - if (ret < 0) - pr_barcode("%s: err2 %d\n", __func__, ret); - } - - } else if (buf[0] == TEST_CODE1) { - unsigned char BSR_data[6] =\ - {0xC8, 0x00, 0x32, 0x01, 0x00, 0x32}; - - pr_barcode("barcode test code start\n"); - - /* send NH */ - i2c_block_transfer.addr = 0x80; - i2c_block_transfer.data[0] = 0x05; - ret = i2c_master_send(client, (unsigned char *) &i2c_block_transfer, 2); - if (ret < 0) { - pr_err("%s: err1 %d\n", __func__, ret); - ret = i2c_master_send(client, (unsigned char *) &i2c_block_transfer, 2); - if (ret < 0) - pr_err("%s: err2 %d\n", __func__, ret); - } - - /* setup BSR data */ - for (i = 0; i < 6; i++) - i2c_block_transfer.data[i+1] = BSR_data[i]; - - /* send BSR1 => NS 1= 200, ISD 1 = 100us, IPD 1 = 200us, BL 1=14, BW 1=4MHZ */ - i2c_block_transfer.addr = 0x81; - i2c_block_transfer.data[0] = 0x00; - - ret = i2c_master_send(client, (unsigned char *) &i2c_block_transfer, 8); - if (ret < 0) { - pr_err("%s: err1 %d\n", __func__, ret); - ret = i2c_master_send(client, (unsigned char *) &i2c_block_transfer, 8); - if (ret < 0) - pr_err("%s: err2 %d\n", __func__, ret); - } - - /* send BSR2 => NS 2= 200, ISD 2 = 100us, IPD 2 = 200us, BL 2=14, BW 2=2MHZ*/ - i2c_block_transfer.addr = 0x88; - i2c_block_transfer.data[0] = 0x01; - - ret = i2c_master_send(client, (unsigned char *) &i2c_block_transfer, 8); - if (ret < 0) { - pr_err("%s: err1 %d\n", __func__, ret); - ret = i2c_master_send(client, (unsigned char *) &i2c_block_transfer, 8); - if (ret < 0) - pr_err("%s: err2 %d\n", __func__, ret); - } - - - /* send BSR3 => NS 3= 200, ISD 3 = 100us, IPD 3 = 200us, BL 3=14, BW 3=1MHZ*/ - i2c_block_transfer.addr = 0x8F; - i2c_block_transfer.data[0] = 0x02; - - ret = i2c_master_send(client, (unsigned char *) &i2c_block_transfer, 8); - if (ret < 0) { - pr_err("%s: err1 %d\n", __func__, ret); - ret = i2c_master_send(client, (unsigned char *) &i2c_block_transfer, 8); - if (ret < 0) - pr_err("%s: err2 %d\n", __func__, ret); - } - - /* send BSR4 => NS 4= 200, ISD 4 = 100us, IPD 4 = 200us, BL 4=14, BW 4=500KHZ*/ - i2c_block_transfer.addr = 0x96; - i2c_block_transfer.data[0] = 0x04; - - ret = i2c_master_send(client, (unsigned char *) &i2c_block_transfer, 8); - if (ret < 0) { - pr_err("%s: err1 %d\n", __func__, ret); - ret = i2c_master_send(client, (unsigned char *) &i2c_block_transfer, 8); - if (ret < 0) - pr_err("%s: err2 %d\n", __func__, ret); - } - - /* send BSR5 => NS 5= 200, ISD 5 = 100us, IPD 5 = 200us, BL 5=14, BW 5=250KHZ*/ - i2c_block_transfer.addr = 0x9D; - i2c_block_transfer.data[0] = 0x08; - - ret = i2c_master_send(client, (unsigned char *) &i2c_block_transfer, 8); - if (ret < 0) { - pr_err("%s: err1 %d\n", __func__, ret); - ret = i2c_master_send(client, (unsigned char *) &i2c_block_transfer, 8); - if (ret < 0) - pr_err("%s: err2 %d\n", __func__, ret); - } - - /* send barcode data */ - i2c_block_transfer.addr = 0x00; - for (i = 0; i < 14; i++) - i2c_block_transfer.data[i] = barcode_data[i]; - - ret = i2c_master_send(client, (unsigned char *) &i2c_block_transfer, 15); - if (ret < 0) { - pr_err("%s: err1 %d\n", __func__, ret); - ret = i2c_master_send(client, (unsigned char *) &i2c_block_transfer, 15); - if (ret < 0) - pr_err("%s: err2 %d\n", __func__, ret); - } - - /* send START */ - i2c_block_transfer.addr = 0xFF; - i2c_block_transfer.data[0] = 0x0E; - ret = i2c_master_send(client, (unsigned char *) &i2c_block_transfer, 2); - if (ret < 0) { - pr_err("%s: err1 %d\n", __func__, ret); - ret = i2c_master_send(client, (unsigned char *) &i2c_block_transfer, 2); - if (ret < 0) - pr_err("%s: err2 %d\n", __func__, ret); - } - - } else if (buf[0] == TEST_CODE2) { - pr_barcode("barcode test code stop\n"); - - i2c_block_transfer.addr = 0xFF; - i2c_block_transfer.data[0] = 0x00; - ret = i2c_master_send(client, (unsigned char *) &i2c_block_transfer, 2); - if (ret < 0) { - pr_err("%s: err1 %d\n", __func__, ret); - ret = i2c_master_send(client, (unsigned char *) &i2c_block_transfer, 2); - if (ret < 0) - pr_err("%s: err2 %d\n", __func__, ret); - } - /* - pr_barcode("barcode test code send 02\n"); - - i2c_block_transfer.addr = 0x00; - i2c_block_transfer.data[0] = 0x00; - ret = i2c_master_send(client, (unsigned char *) &i2c_block_transfer, 2); - if (ret < 0) { - pr_err("%s: err1 %d\n", __func__, ret); - ret = i2c_master_send(client, (unsigned char *) &i2c_block_transfer, 2); - if (ret < 0) - pr_err("%s: err2 %d\n", __func__, ret); - } - - i2c_block_transfer.addr = 0x01; - i2c_block_transfer.data[0] = 0x01; - ret = i2c_master_send(client, (unsigned char *) &i2c_block_transfer, 2); - if (ret < 0) { - pr_err("%s: err1 %d\n", __func__, ret); - ret = i2c_master_send(client, (unsigned char *) &i2c_block_transfer, 2); - if (ret < 0) - pr_err("%s: err2 %d\n", __func__, ret); - } - - i2c_block_transfer.addr = 0x02; - for (i = 0; i < 14; i++) - i2c_block_transfer.data[i] = barcode_data[i]; - - ret = i2c_master_send(client, (unsigned char *) &i2c_block_transfer, 15); - if (ret < 0) { - pr_err("%s: err1 %d\n", __func__, ret); - ret = i2c_master_send(client, (unsigned char *) &i2c_block_transfer, 15); - if (ret < 0) - pr_err("%s: err2 %d\n", __func__, ret); - } - - i2c_block_transfer.addr = 0x00; - i2c_block_transfer.data[0] = 0x01; - ret = i2c_master_send(client, (unsigned char *) &i2c_block_transfer, 2); - if (ret < 0) { - pr_err("%s: err1 %d\n", __func__, ret); - ret = i2c_master_send(client, (unsigned char *) &i2c_block_transfer, 2); - if (ret < 0) - pr_err("%s: err2 %d\n", __func__, ret); - } - */ - } - return size; -} - -static ssize_t barcode_emul_test_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - return strlen(buf); -} -static DEVICE_ATTR(barcode_test_send, 0664, barcode_emul_test_show, barcode_emul_test_store); - -static ssize_t barcode_ver_check_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - struct barcode_emul_data *data = dev_get_drvdata(dev); - u8 fw_ver; - - barcode_emul_read(data->client, FW_VER_ADDR, 1, &fw_ver); - fw_ver = (fw_ver >> 5) & 0x7; - return sprintf(buf, "%d\n", fw_ver+14); - -} -static DEVICE_ATTR(barcode_ver_check, 0664, barcode_ver_check_show, NULL); - -static ssize_t barcode_led_status_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - struct barcode_emul_data *data = dev_get_drvdata(dev); - u8 status; - - barcode_emul_read(data->client, BEAM_STATUS_ADDR, 1, &status); - status = status & 0x1; - return sprintf(buf, "%d\n", status); - -} -static DEVICE_ATTR(barcode_led_status, 0664, barcode_led_status_show, NULL); - -static int __devinit barcode_emul_probe(struct i2c_client *client, - const struct i2c_device_id *id) -{ - struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent); - struct barcode_emul_data *data; - struct device *barcode_emul_dev; - int error; - - pr_barcode("%s probe!\n", __func__); - - if (gpio_get_value(GPIO_FPGA_CDONE) != 1) { - pr_err("%s: cdone fail !!\n", __func__); - return 0; - } - - if (!i2c_check_functionality(adapter, I2C_FUNC_I2C)) - return -EIO; - - data = kzalloc(sizeof(struct barcode_emul_data), GFP_KERNEL); - if (NULL == data) { - pr_err("Failed to data allocate %s\n", __func__); - error = -ENOMEM; - goto err_free_mem; - } - data->client = client; - i2c_set_clientdata(client, data); - - barcode_emul_dev = device_create(sec_class, NULL, 0, data, "sec_barcode_emul"); - - if (IS_ERR(barcode_emul_dev)) - pr_err("Failed to create barcode_emul_dev device\n"); - - if (device_create_file(barcode_emul_dev, &dev_attr_barcode_send) < 0) - pr_err("Failed to create device file(%s)!\n", - dev_attr_barcode_send.attr.name); - if (device_create_file(barcode_emul_dev, &dev_attr_barcode_test_send) < 0) - pr_err("Failed to create device file(%s)!\n", - dev_attr_barcode_test_send.attr.name); - if (device_create_file(barcode_emul_dev, &dev_attr_barcode_fw_update) < 0) - pr_err("Failed to create device file(%s)!\n", - dev_attr_barcode_fw_update.attr.name); - if (device_create_file(barcode_emul_dev, &dev_attr_barcode_ver_check) < 0) - pr_err("Failed to create device file(%s)!\n", - dev_attr_barcode_ver_check.attr.name); - if (device_create_file(barcode_emul_dev, &dev_attr_barcode_led_status) < 0) - pr_err("Failed to create device file(%s)!\n", - dev_attr_barcode_led_status.attr.name); - - return 0; - -err_free_mem: - kfree(data); - return error; -} - -static int __devexit barcode_emul_remove(struct i2c_client *client) -{ - struct barcode_emul_data *data = i2c_get_clientdata(client); - - i2c_set_clientdata(client, NULL); - kfree(data); - return 0; -} - -#ifdef CONFIG_PM -static int barcode_emul_suspend(struct device *dev) -{ - gpio_set_value(GPIO_FPGA_RST_N, GPIO_LEVEL_LOW); - return 0; -} - -static int barcode_emul_resume(struct device *dev) -{ - gpio_set_value(GPIO_FPGA_RST_N, GPIO_LEVEL_HIGH); - return 0; -} - -static const struct dev_pm_ops barcode_emul_pm_ops = { - .suspend = barcode_emul_suspend, - .resume = barcode_emul_resume, -}; -#endif - -static const struct i2c_device_id ice4_id[] = { - {"ice4", 0}, - {} -}; -MODULE_DEVICE_TABLE(i2c, ice4_id); - -static struct i2c_driver ice4_i2c_driver = { - .driver = { - .name = "ice4", -#ifdef CONFIG_PM - .pm = &barcode_emul_pm_ops, -#endif - }, - .probe = barcode_emul_probe, - .remove = __devexit_p(barcode_emul_remove), - .id_table = ice4_id, -}; - -static void barcode_init_workfunc(struct work_struct *work) -{ - barcode_fpga_firmware_update(); - i2c_add_driver(&ice4_i2c_driver); -} - -static int __init barcode_emul_init(void) -{ - barcode_init_wq = create_singlethread_workqueue("barcode_init"); - queue_work(barcode_init_wq, &barcode_init_work); - - return 0; -} -late_initcall(barcode_emul_init); - -static void __exit barcode_emul_exit(void) -{ - i2c_del_driver(&ice4_i2c_driver); - destroy_workqueue(barcode_init_wq); -} -module_exit(barcode_emul_exit); - -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("SEC Barcode emulator"); |