| /* |
| * User Mode Init manager - For TI shared transport |
| * |
| * 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 |
| */ |
| #include <stdio.h> |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <string.h> |
| #include <signal.h> |
| #include <sys/ioctl.h> |
| #include <termios.h> |
| #include <poll.h> |
| #include <stdint.h> |
| #include <stdlib.h> |
| #include <sys/stat.h> |
| #include <sys/utsname.h> |
| |
| #include <unistd.h> |
| #include <time.h> |
| |
| #ifdef ANDROID |
| #include <private/android_filesystem_config.h> |
| #include <cutils/log.h> |
| #endif |
| |
| #include "uim.h" |
| |
| /* Maintains the exit state of UIM*/ |
| static int exiting; |
| |
| /* UART configuration parameters*/ |
| int uart_flow_control; |
| int cust_baud_rate; |
| char uart_dev_name[15]; |
| unsigned int uart_baud_rate; |
| struct termios ti; |
| int line_discipline; |
| |
| /* BD address as string and a pointer to array of hex bytes */ |
| char uim_bd_address[17]; |
| bdaddr_t *bd_addr; |
| |
| /* File descriptor for the UART device*/ |
| int dev_fd; |
| |
| /* Maintains the state of N_TI_WL line discipline installation*/ |
| unsigned char st_state = INSTALL_N_TI_WL; |
| unsigned char prev_st_state = INSTALL_N_TI_WL; |
| |
| /* from kernel's include/linux/rfkill.h |
| * the header in itself not included because of the |
| * version mismatch of android kernel headers project |
| */ |
| |
| /** |
| * enum rfkill_operation - operation types |
| * @RFKILL_OP_ADD: a device was added |
| * @RFKILL_OP_DEL: a device was removed |
| * @RFKILL_OP_CHANGE: a device's state changed -- userspace changes one device |
| * @RFKILL_OP_CHANGE_ALL: userspace changes all devices (of a type, or all) |
| */ |
| enum rfkill_operation { |
| RFKILL_OP_ADD = 0, |
| RFKILL_OP_DEL, |
| RFKILL_OP_CHANGE, |
| RFKILL_OP_CHANGE_ALL, |
| }; |
| |
| /** |
| * struct rfkill_event - events for userspace on /dev/rfkill |
| * @idx: index of dev rfkill |
| * @type: type of the rfkill struct |
| * @op: operation code |
| * @hard: hard state (0/1) |
| * @soft: soft state (0/1) |
| * |
| * Structure used for userspace communication on /dev/rfkill, |
| * used for events from the kernel and control to the kernel. |
| */ |
| |
| struct rfkill_event { |
| uint32_t idx; |
| uint8_t type; |
| uint8_t op; |
| uint8_t soft, hard; |
| } __packed; |
| |
| /* to read events and filter notifications for us */ |
| struct rfkill_event rf_event; |
| int rfkill_idx; |
| |
| /*****************************************************************************/ |
| #ifdef UIM_DEBUG |
| /* Function to Read the firmware version |
| * module into the system. Currently used for |
| * debugging purpose, whenever the baud rate is changed |
| */ |
| void read_firmware_version() |
| { |
| int index = 0; |
| char resp_buffer[20] = { 0 }; |
| unsigned char buffer[] = { 0x01, 0x01, 0x10, 0x00 }; |
| |
| UIM_START_FUNC(); |
| UIM_VER(" wrote %d bytes", (int)write(dev_fd, buffer, 4)); |
| UIM_VER(" reading %d bytes", (int)read(dev_fd, resp_buffer, 15)); |
| |
| for (index = 0; index < 15; index++) |
| UIM_VER(" %x ", resp_buffer[index]); |
| |
| printf("\n"); |
| } |
| #endif |
| |
| /*****************************************************************************/ |
| #ifdef ANDROID /* library for android to do insmod/rmmod */ |
| |
| /* Function to insert the kernel module into the system*/ |
| static int insmod(const char *filename, const char *args) |
| { |
| void *module; |
| unsigned int size; |
| int ret = -1; |
| |
| UIM_START_FUNC(); |
| |
| module = (void *)load_file(filename, &size); |
| if (!module) |
| return ret; |
| |
| ret = init_module(module, size, args); |
| free(module); |
| |
| return ret; |
| } |
| |
| /* Function to remove the kernel module from the system*/ |
| static int rmmod(const char *modname) |
| { |
| int ret = -1; |
| int maxtry = MAX_TRY; |
| |
| UIM_START_FUNC(); |
| |
| /* Retry MAX_TRY number of times in case of |
| * failure |
| */ |
| while (maxtry-- > 0) { |
| ret = delete_module(modname, O_NONBLOCK | O_EXCL); |
| if (ret < 0 && errno == EAGAIN) |
| sleep(1); |
| else |
| break; |
| } |
| |
| /* Failed to remove the module |
| */ |
| if (ret != 0) |
| UIM_ERR("Unable to unload driver module \"%s\": %s", |
| modname, strerror(errno)); |
| return ret; |
| } |
| #endif /*ANDROID*/ |
| |
| /*****************************************************************************/ |
| /* Function to read the HCI event from the given file descriptor |
| * |
| * This will parse the response received and returns error |
| * if the required response is not received |
| */ |
| int read_hci_event(int fd, unsigned char *buf, int size) |
| { |
| int remain, rd; |
| int count = 0; |
| int reading = 1; |
| int rd_retry_count = 0; |
| struct timespec tm = {0, 50*1000*1000}; |
| |
| UIM_START_FUNC(); |
| |
| UIM_VER(" read_hci_event"); |
| if (size <= 0) |
| return -1; |
| |
| /* The first byte identifies the packet type. For HCI event packets, it |
| * should be 0x04, so we read until we get to the 0x04. */ |
| while (reading) { |
| rd = read(fd, buf, 1); |
| if (rd <= 0 && rd_retry_count++ < 4) { |
| nanosleep(&tm, NULL); |
| continue; |
| } else if (rd_retry_count >= 4) { |
| return -1; |
| } |
| |
| if (buf[0] == RESP_PREFIX) { |
| break; |
| } |
| } |
| count++; |
| |
| /* The next two bytes are the event code and parameter total length. */ |
| while (count < 3) { |
| rd = read(fd, buf + count, 3 - count); |
| if (rd <= 0) |
| return -1; |
| count += rd; |
| } |
| |
| /* Now we read the parameters. */ |
| if (buf[2] < (size - 3)) |
| remain = buf[2]; |
| else |
| remain = size - 3; |
| |
| while ((count - 3) < remain) { |
| rd = read(fd, buf + count, remain - (count - 3)); |
| if (rd <= 0) |
| return -1; |
| count += rd; |
| } |
| |
| return count; |
| } |
| |
| /* Function to read the Command complete event |
| * |
| * This will read the response for the change speed |
| * command that was sent to configure the UART speed |
| * with the custom baud rate |
| */ |
| static int read_command_complete(int fd, unsigned short opcode) |
| { |
| command_complete_t resp; |
| |
| UIM_START_FUNC(); |
| |
| UIM_VER(" Command complete started"); |
| if (read_hci_event(fd, (unsigned char *)&resp, sizeof(resp)) < 0) { |
| UIM_ERR(" Invalid response"); |
| return -1; |
| } |
| |
| /* Response should be an event packet */ |
| if (resp.uart_prefix != HCI_EVENT_PKT) { |
| UIM_ERR |
| (" Error in response: not an event packet, but 0x%02x!", |
| resp.uart_prefix); |
| return -1; |
| } |
| |
| /* Response should be a command complete event */ |
| if (resp.hci_hdr.evt != EVT_CMD_COMPLETE) { |
| /* event must be event-complete */ |
| UIM_ERR |
| (" Error in response: not a cmd-complete event,but 0x%02x!", |
| resp.hci_hdr.evt); |
| return -1; |
| } |
| |
| if (resp.hci_hdr.plen < 4) { |
| /* plen >= 4 for EVT_CMD_COMPLETE */ |
| UIM_ERR(" Error in response: plen is not >= 4, but 0x%02x!", |
| resp.hci_hdr.plen); |
| return -1; |
| } |
| |
| if (resp.cmd_complete.opcode != (unsigned short)opcode) { |
| UIM_ERR(" Error in response: opcode is 0x%04x, not 0x%04x!", |
| resp.cmd_complete.opcode, opcode); |
| return -1; |
| } |
| |
| UIM_DBG(" Command complete done"); |
| return resp.status == 0 ? 0 : -1; |
| } |
| |
| /* Function to set the default baud rate |
| * |
| * The default baud rate of 115200 is set to the UART from the host side |
| * by making a call to this function.This function is also called before |
| * making a call to set the custom baud rate |
| */ |
| static int set_baud_rate(void) |
| { |
| UIM_START_FUNC(); |
| |
| tcflush(dev_fd, TCIOFLUSH); |
| |
| /* Get the attributes of UART */ |
| if (tcgetattr(dev_fd, &ti) < 0) { |
| UIM_ERR(" Can't get port settings"); |
| return -1; |
| } |
| |
| /* Change the UART attributes before |
| * setting the default baud rate*/ |
| cfmakeraw(&ti); |
| |
| ti.c_cflag |= 1; |
| ti.c_cflag |= CRTSCTS; |
| |
| /* Set the attributes of UART after making |
| * the above changes |
| */ |
| tcsetattr(dev_fd, TCSANOW, &ti); |
| |
| /* Set the actual default baud rate */ |
| cfsetospeed(&ti, B115200); |
| cfsetispeed(&ti, B115200); |
| tcsetattr(dev_fd, TCSANOW, &ti); |
| |
| tcflush(dev_fd, TCIOFLUSH); |
| UIM_DBG(" set_baud_rate() done"); |
| |
| return 0; |
| } |
| |
| /* Function to set the UART custom baud rate. |
| * |
| * The UART baud rate has already been |
| * set to default value 115200 before calling this function. |
| * The baud rate is then changed to custom baud rate by this function*/ |
| static int set_custom_baud_rate(void) |
| { |
| UIM_START_FUNC(); |
| |
| struct termios2 ti2; |
| |
| UIM_VER(" Changing baud rate to %u, flow control to %u", |
| cust_baud_rate, uart_flow_control); |
| |
| /* Flush non-transmitted output data, |
| * non-read input data or both*/ |
| tcflush(dev_fd, TCIOFLUSH); |
| |
| /*Set the UART flow control */ |
| if (uart_flow_control) |
| ti.c_cflag |= CRTSCTS; |
| else |
| ti.c_cflag &= ~CRTSCTS; |
| |
| /* |
| * Set the parameters associated with the UART |
| * The change will occur immediately by using TCSANOW |
| */ |
| if (tcsetattr(dev_fd, TCSANOW, &ti) < 0) { |
| UIM_ERR(" Can't set port settings"); |
| return -1; |
| } |
| |
| tcflush(dev_fd, TCIOFLUSH); |
| |
| /*Set the actual baud rate */ |
| ioctl(dev_fd, TCGETS2, &ti2); |
| ti2.c_cflag &= ~CBAUD; |
| ti2.c_cflag |= BOTHER; |
| ti2.c_ospeed = cust_baud_rate; |
| ioctl(dev_fd, TCSETS2, &ti2); |
| |
| UIM_DBG(" set_custom_baud_rate() done"); |
| return 0; |
| } |
| |
| /* |
| * After receiving the indication from rfkill subsystem, configure the |
| * baud rate, flow control and Install the N_TI_WL line discipline |
| */ |
| int st_uart_config(void) |
| { |
| int ldisc, len; |
| uim_speed_change_cmd cmd; |
| |
| uim_bdaddr_change_cmd addr_cmd; |
| |
| UIM_START_FUNC(); |
| |
| /* Install the line discipline when the rfkill signal is received by UIM. |
| * Whenever the first protocol tries to register with the ST core, the |
| * ST KIM will inform the UIM through rfkill subsystem to install the N_TI_WL |
| * line discipline and do the host side UART configurations. |
| * |
| * On failure, ST KIM's line discipline installation times out, and the |
| * relevant protocol register fails |
| */ |
| if (st_state == INSTALL_N_TI_WL) { |
| UIM_VER(" signal received, opening %s", uart_dev_name); |
| dev_fd = open(uart_dev_name, O_RDWR); |
| if (dev_fd < 0) { |
| UIM_ERR(" Can't open %s", uart_dev_name); |
| return -1; |
| } |
| /* |
| * Set only the default baud rate. |
| * This will set the baud rate to default 115200 |
| */ |
| if (set_baud_rate() < 0) { |
| UIM_ERR(" set_baudrate() failed"); |
| close(dev_fd); |
| return -1; |
| } |
| |
| fcntl(dev_fd, F_SETFL,fcntl(dev_fd, F_GETFL) | O_NONBLOCK); |
| /* Set only thecustom baud rate */ |
| if (cust_baud_rate) { |
| |
| /* Forming the packet for Change speed command */ |
| cmd.uart_prefix = HCI_COMMAND_PKT; |
| cmd.hci_hdr.opcode = HCI_HDR_OPCODE; |
| cmd.hci_hdr.plen = sizeof(unsigned long); |
| cmd.speed = cust_baud_rate; |
| |
| /* Writing the change speed command to the UART |
| * This will change the UART speed at the controller |
| * side |
| */ |
| UIM_VER(" Setting speed to %d", cust_baud_rate); |
| len = write(dev_fd, &cmd, sizeof(cmd)); |
| if (len < 0) { |
| UIM_ERR(" Failed to write speed-set command"); |
| close(dev_fd); |
| return -1; |
| } |
| |
| /* Read the response for the Change speed command */ |
| if (read_command_complete(dev_fd, HCI_HDR_OPCODE) < 0) { |
| close(dev_fd); |
| return -1; |
| } |
| |
| UIM_VER(" Speed changed to %d", cust_baud_rate); |
| |
| /* Set the actual custom baud rate at the host side */ |
| if (set_custom_baud_rate() < 0) { |
| UIM_ERR(" set_custom_baud_rate() failed"); |
| close(dev_fd); |
| |
| return -1; |
| } |
| /* Set the uim BD address */ |
| if (uim_bd_address[0] != 0) { |
| |
| memset(&addr_cmd, 0, sizeof(addr_cmd)); |
| /* Forming the packet for change BD address command*/ |
| addr_cmd.uart_prefix = HCI_COMMAND_PKT; |
| addr_cmd.hci_hdr.opcode = WRITE_BD_ADDR_OPCODE; |
| addr_cmd.hci_hdr.plen = sizeof(bdaddr_t); |
| memcpy(&addr_cmd.addr, bd_addr, sizeof(bdaddr_t)); |
| |
| /* Writing the change BD address command to the UART |
| * This will change the change BD address at the controller |
| * side |
| */ |
| len = write(dev_fd, &addr_cmd, sizeof(addr_cmd)); |
| if (len < 0) { |
| UIM_ERR(" Failed to write BD address command"); |
| close(dev_fd); |
| return -1; |
| } |
| |
| /* Read the response for the change BD address command */ |
| if (read_command_complete(dev_fd, WRITE_BD_ADDR_OPCODE) < 0) { |
| close(dev_fd); |
| return -1; |
| } |
| |
| UIM_VER(" BD address changed to %s", uim_bd_address); |
| } |
| #ifdef UIM_DEBUG |
| read_firmware_version(); |
| #endif |
| } |
| |
| /* After the UART speed has been changed, the IOCTL is |
| * is called to set the line discipline to N_TI_WL |
| */ |
| ldisc = line_discipline; |
| if (ioctl(dev_fd, TIOCSETD, &ldisc) < 0) { |
| UIM_ERR(" Can't set line discipline"); |
| close(dev_fd); |
| return -1; |
| } |
| |
| UIM_DBG(" Installed N_TI_WL Line displine"); |
| } |
| else { |
| /* UNINSTALL_N_TI_WL - When the Signal is received from KIM */ |
| /* closing UART fd */ |
| close(dev_fd); |
| } |
| prev_st_state = st_state; |
| return 0; |
| } |
| |
| #ifdef ANDROID |
| int remove_modules(void) |
| { |
| int err = 0; |
| UIM_VER(" Removing gps_drv "); |
| if (rmmod("gps_drv") != 0) { |
| UIM_ERR(" Error removing gps_drv module"); |
| err = -1; |
| } else { |
| UIM_DBG(" Removed gps_drv module"); |
| } |
| |
| UIM_VER(" Removing fm_drv "); |
| if (rmmod("fm_drv") != 0) { |
| UIM_ERR(" Error removing fm_drv module"); |
| err = -1; |
| } else { |
| UIM_DBG(" Removed fm_drv module"); |
| } |
| UIM_DBG(" Removed fm_drv module"); |
| |
| UIM_VER(" Removing bt_drv "); |
| |
| if (rmmod("bt_drv") != 0) { |
| UIM_ERR(" Error removing bt_drv module"); |
| err = -1; |
| } else { |
| UIM_DBG(" Removed bt_drv module"); |
| } |
| UIM_DBG(" Removed bt_drv module"); |
| |
| /*Remove the Shared Transport */ |
| UIM_VER(" Removing st_drv "); |
| |
| if (rmmod("st_drv") != 0) { |
| UIM_ERR(" Error removing st_drv module"); |
| err = -1; |
| } else { |
| UIM_DBG(" Removed st_drv module "); |
| } |
| UIM_DBG(" Removed st_drv module "); |
| return err; |
| } |
| #endif |
| |
| int change_rfkill_perms(void) |
| { |
| int fd, id, sz; |
| char path[64]; |
| char buf[16]; |
| for (id = 0; id < 50; id++) { |
| snprintf(path, sizeof(path), "/sys/class/rfkill/rfkill%d/name", id); |
| fd = open(path, O_RDONLY); |
| if (fd < 0) { |
| UIM_DBG("open(%s) failed: %s (%d)\n", path, strerror(errno), errno); |
| continue; |
| } |
| sz = read(fd, &buf, sizeof(buf)); |
| close(fd); |
| if (sz >= 9 && memcmp(buf, "Bluetooth", 9) == 0) { |
| UIM_DBG("found bluetooth rfkill entry @ %d\n", id); |
| rfkill_idx = id; |
| break; |
| } |
| } |
| if (id == 50) { |
| return -1; |
| } |
| |
| #ifdef ANDROID |
| sprintf(path, "/sys/class/rfkill/rfkill%d/state", id); |
| sz = chown(path, AID_BLUETOOTH, AID_BLUETOOTH); |
| if (sz < 0) { |
| UIM_ERR("change mode failed for %s (%d)\n", path, errno); |
| return -1; |
| } |
| |
| /* |
| * bluetooth group's user system needs write permission |
| */ |
| sz = chmod(path, 0660); |
| if (sz < 0) { |
| UIM_ERR("change mode failed for %s (%d)\n", path, errno); |
| return -1; |
| } |
| UIM_DBG("changed permissions for %s(%d) \n", path, sz); |
| /* end of change_perms */ |
| #endif |
| return 0; |
| } |
| |
| void *bt_malloc(size_t size) |
| { |
| return malloc(size); |
| } |
| |
| /* Function to convert the BD address from ascii to hex value */ |
| bdaddr_t *strtoba(const char *str) |
| { |
| const char *ptr = str; |
| int i; |
| |
| uint8_t *ba = bt_malloc(sizeof(bdaddr_t)); |
| if (!ba) |
| return NULL; |
| |
| for (i = 0; i < 6; i++) { |
| ba[i] = (uint8_t) strtol(ptr, NULL, 16); |
| if (i != 5 && !(ptr = strchr(ptr, ':'))) |
| ptr = ":00:00:00:00:00"; |
| ptr++; |
| } |
| |
| return (bdaddr_t *) ba; |
| } |
| |
| /*****************************************************************************/ |
| int main(int argc, char *argv[]) |
| { |
| int st_fd,err; |
| #ifdef ANDROID |
| struct stat file_stat; |
| #endif |
| #ifndef ANDROID |
| struct utsname name; |
| #endif |
| struct pollfd p; |
| |
| UIM_START_FUNC(); |
| err = 0; |
| |
| /* Parse the user input */ |
| if ((argc == 5) || (argc == 6)) { |
| strcpy(uart_dev_name, argv[1]); |
| uart_baud_rate = atoi(argv[2]); |
| uart_flow_control = atoi(argv[3]); |
| line_discipline = atoi(argv[4]); |
| |
| /* Depending upon the baud rate value, differentiate |
| * the custom baud rate and default baud rate |
| */ |
| switch (uart_baud_rate) { |
| case 115200: |
| UIM_VER(" Baudrate 115200"); |
| break; |
| case 9600: |
| case 19200: |
| case 38400: |
| case 57600: |
| case 230400: |
| case 460800: |
| case 500000: |
| case 576000: |
| case 921600: |
| case 1000000: |
| case 1152000: |
| case 1500000: |
| case 2000000: |
| case 2500000: |
| case 3000000: |
| case 3500000: |
| case 3686400: |
| case 4000000: |
| cust_baud_rate = uart_baud_rate; |
| UIM_VER(" Baudrate %d", cust_baud_rate); |
| break; |
| default: |
| UIM_ERR(" Inavalid Baud Rate"); |
| break; |
| } |
| |
| memset(&uim_bd_address, 0, sizeof(uim_bd_address)); |
| } else { |
| UIM_ERR(" Invalid arguements"); |
| UIM_ERR(" Usage: uim [Uart device] [Baud rate] [Flow control] [Line discipline] <bd address>"); |
| return -1; |
| } |
| |
| if (argc == 6) { |
| /* BD address passed as string in xx:xx:xx:xx:xx:xx format */ |
| strncpy(uim_bd_address, argv[5], sizeof(uim_bd_address)); |
| bd_addr = strtoba(uim_bd_address); |
| } |
| #ifndef ANDROID |
| if (uname (&name) == -1) { |
| UIM_ERR("cannot get kernel release name"); |
| return -1; |
| } |
| #else /* if ANDROID */ |
| |
| if (0 == lstat("/st_drv.ko", &file_stat)) { |
| if (insmod("/st_drv.ko", "") < 0) { |
| UIM_ERR(" Error inserting st_drv module"); |
| return -1; |
| } else { |
| UIM_DBG(" Inserted st_drv module"); |
| } |
| } else { |
| if (0 == lstat("/dev/rfkill", &file_stat)) { |
| UIM_DBG("ST built into the kernel ?"); |
| } else { |
| UIM_ERR("BT/FM/GPS would be unavailable on system"); |
| UIM_ERR(" rfkill device '/dev/rfkill' not found "); |
| return -1; |
| } |
| } |
| |
| if (change_rfkill_perms() < 0) { |
| /* possible error condition */ |
| UIM_ERR("rfkill not enabled in st_drv - BT on from UI might fail\n"); |
| } |
| |
| if (0 == lstat("/bt_drv.ko", &file_stat)) { |
| if (insmod("/bt_drv.ko", "") < 0) { |
| UIM_ERR(" Error inserting bt_drv module, NO BT? "); |
| } else { |
| UIM_DBG(" Inserted bt_drv module"); |
| } |
| } else { |
| UIM_DBG("BT driver module un-available... "); |
| UIM_DBG("BT driver built into the kernel ?"); |
| } |
| |
| if (0 == lstat("/fm_drv.ko", &file_stat)) { |
| if (insmod("/fm_drv.ko", "") < 0) { |
| UIM_ERR(" Error inserting fm_drv module, NO FM? "); |
| } else { |
| UIM_DBG(" Inserted fm_drv module"); |
| } |
| } else { |
| UIM_DBG("FM driver module un-available... "); |
| UIM_DBG("FM driver built into the kernel ?"); |
| } |
| |
| if (0 == lstat("/gps_drv.ko", &file_stat)) { |
| if (insmod("/gps_drv.ko", "") < 0) { |
| UIM_ERR(" Error inserting gps_drv module, NO GPS? "); |
| } else { |
| UIM_DBG(" Inserted gps_drv module"); |
| } |
| } else { |
| UIM_DBG("GPS driver module un-available... "); |
| UIM_DBG("GPS driver built into the kernel ?"); |
| } |
| |
| if (chmod("/dev/tifm", 0666) < 0) { |
| UIM_ERR("unable to chmod /dev/tifm"); |
| } |
| #endif |
| /* rfkill device's open/poll/read */ |
| st_fd = open("/dev/rfkill", O_RDONLY); |
| |
| p.fd = st_fd; |
| p.events = POLLERR | POLLHUP | POLLOUT | POLLIN; |
| |
| RE_POLL: |
| while (!exiting) { |
| p.revents = 0; |
| err = poll(&p, 1, -1); |
| if (err < 0 && errno == EINTR) |
| continue; |
| if (err) |
| break; |
| } |
| if (!exiting) |
| { |
| err = read(st_fd, &rf_event, sizeof(rf_event)); |
| UIM_DBG("rf_event: %d, %d, %d, %d, %d\n", rf_event.idx, |
| rf_event.type, rf_event.op ,rf_event.hard, |
| rf_event.soft); |
| /* Since non-android/ubuntu solution for UIM doesn't insert |
| * modules, the rfkill entry relevant to TI ST can only be known |
| * by listening onto each of the RFKILL_OP_ADD event |
| */ |
| #ifndef ANDROID |
| if (rf_event.op == RFKILL_OP_ADD) { |
| UIM_DBG("RFKILL_OP_ADD received\n"); |
| change_rfkill_perms(); |
| goto RE_POLL; |
| } |
| #endif |
| if ((rf_event.op == RFKILL_OP_CHANGE) && |
| (rf_event.idx == rfkill_idx)) { |
| if (rf_event.hard == 1) |
| st_state = UNINSTALL_N_TI_WL; |
| else |
| st_state = INSTALL_N_TI_WL; |
| |
| if (prev_st_state != st_state) |
| st_uart_config(); |
| } |
| goto RE_POLL; |
| } |
| |
| #ifdef ANDROID |
| if(remove_modules() < 0) { |
| UIM_ERR(" Error removing modules "); |
| close(st_fd); |
| return -1; |
| } |
| #endif |
| |
| close(st_fd); |
| return 0; |
| } |
