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android / platform / external / libnfc-nci / c67cc6ad2addddcb7185a33b08d27290ce54e350 / . / halimpl / bcm2079x / adaptation / userial_linux.c
blob: f7ea94e304c3abcb505a1060e04a33d738e740e0 [file] [log] [blame]
/******************************************************************************
*
* Copyright (C) 1999-2012 Broadcom Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************/
#include "OverrideLog.h"
#include <string.h>
#include "gki.h"
#include "nfc_hal_api.h"
#include "nfc_hal_int.h"
#include "userial.h"
#include "nfc_target.h"
#include <pthread.h>
#include <termios.h>
#include <fcntl.h>
#include <errno.h>
#include <stdio.h>
#include <unistd.h>
#include <gki_int.h>
#include "hcidefs.h"
#include <poll.h>
#include "upio.h"
#include "bcm2079x.h"
#include "config.h"
#define HCISU_EVT EVENT_MASK(APPL_EVT_0)
#define MAX_ERROR 10
#define default_transport "/dev/bcm2079x"
#define NUM_RESET_ATTEMPTS 5
#define NFC_WAKE_ASSERTED_ON_POR UPIO_OFF
#ifndef BTE_APPL_MAX_USERIAL_DEV_NAME
#define BTE_APPL_MAX_USERIAL_DEV_NAME (256)
#endif
extern UINT8 appl_trace_level;
/* Mapping of USERIAL_PORT_x to linux */
extern UINT32 ScrProtocolTraceFlag;
static tUPIO_STATE current_nfc_wake_state = UPIO_OFF;
int uart_port = 0;
int isLowSpeedTransport = 0;
int nfc_wake_delay = 0;
int nfc_write_delay = 0;
int gPowerOnDelay = 300;
static int gPrePowerOffDelay = 0; // default value
static int gPostPowerOffDelay = 0; // default value
static pthread_mutex_t close_thread_mutex = PTHREAD_MUTEX_INITIALIZER;
char userial_dev[BTE_APPL_MAX_USERIAL_DEV_NAME+1];
char power_control_dev[BTE_APPL_MAX_USERIAL_DEV_NAME+1];
tSNOOZE_MODE_CONFIG gSnoozeModeCfg = {
NFC_HAL_LP_SNOOZE_MODE_SPI_I2C, /* Sleep Mode (0=Disabled 1=UART 8=SPI/I2C) */
NFC_HAL_LP_IDLE_THRESHOLD_HOST, /* Idle Threshold Host */
NFC_HAL_LP_IDLE_THRESHOLD_HC, /* Idle Threshold HC */
NFC_HAL_LP_ACTIVE_LOW, /* NFC Wake active mode (0=ActiveLow 1=ActiveHigh) */
NFC_HAL_LP_ACTIVE_HIGH /* Host Wake active mode (0=ActiveLow 1=ActiveHigh) */
};
UINT8 bcmi2cnfc_client_addr = 0;
UINT8 bcmi2cnfc_read_multi_packets = 0;
#define USERIAL_Debug_verbose ((ScrProtocolTraceFlag & 0x80000000) == 0x80000000)
#include <sys/socket.h>
#define LOG_TAG "USERIAL_LINUX"
static UINT8 spi_negotiation[10] = { 0xF0, /* CMD */
0x00, /* SPI PARM Negotiation */
0x01, /* SPI Version */
0x00, /* SPI Mode:0, SPI_INT active low */
0x00, /* 8Bit, MSB first, Little Endian byte order */
0x00, /* Reserved */
0xFF, /* Sleep timeout Lower Byte */
0xFF, /* Sleep timeout Upper Byte */
0x00, /* Reserved */
0x00 /* Reserved */
};
static UINT8 spi_nego_res[20];
/* Modes used when powering off (independent
of what the stack/jni has configured */
#define POM_NORMAL (0) /* Normal */
#define POM_CE3SO (1) /* Go to CE3-SO */
#define POM_NFC_OFF (2) /* Set NFC Off bit */
static int gPowerOffMode = POM_NORMAL;
static UINT8 ce3_so_cmd[10] = { 0x10,
0x2F, /* CMD */
0x08,
0x06, /* size of cmd */
0x02, /* CE3 power-level */
0xF3, /* LpmUicc */
0x01, /* LpmListenTech */
0x01, /* Param */
0x00, /* Forced */
0x00 /* Debug */
};
static UINT8 set_nfc_off_cmd[5] = {
0x10,
0x2F, /* CMD */
0x38,
0x01, /* size of cmd */
0x01 /* setNfcOff */
};
#include <ctype.h>
#define USING_BRCM_USB TRUE
/* use tc interface to change baudrate instead of close/open sequence which can fail on some platforms
* due to tx line movement when opeing/closing the UART. the 43xx do not like this. */
#ifndef USERIAL_USE_TCIO_BAUD_CHANGE
#define USERIAL_USE_TCIO_BAUD_CHANGE FALSE
#endif
#ifndef USERIAL_USE_IO_BT_WAKE
#define USERIAL_USE_IO_BT_WAKE FALSE
#endif
/* this are the ioctl values used for bt_wake ioctl via UART driver. you may need to redefine at for
* you platform! Logically they need to be unique and not colide with existing uart ioctl's.
*/
#ifndef USERIAL_IO_BT_WAKE_ASSERT
#define USERIAL_IO_BT_WAKE_ASSERT 0x8003
#endif
#ifndef USERIAL_IO_BT_WAKE_DEASSERT
#define USERIAL_IO_BT_WAKE_DEASSERT 0x8004
#endif
#ifndef USERIAL_IO_BT_WAKE_GET_ST
#define USERIAL_IO_BT_WAKE_GET_ST 0x8005
#endif
/* the read limit in this current implementation depends on the GKI_BUF3_SIZE
* It would be better to use some ring buffer from the USERIAL_Read() is reading
* instead of putting it into GKI buffers.
*/
#define READ_LIMIT (USERIAL_POOL_BUF_SIZE-BT_HDR_SIZE)
/*
* minimum buffer size requirement to read a full sized packet from NFCC = 255 + 4 byte header
*/
#define MIN_BUFSIZE 259
#define POLL_TIMEOUT 1000
/* priority of the reader thread */
#define USERIAL_READ_TRHEAD_PRIO 90
/* time (ms) to wait before trying to allocate again a GKI buffer */
#define NO_GKI_BUFFER_RECOVER_TIME 100
#define MAX_SERIAL_PORT (USERIAL_PORT_15 + 1)
extern void dumpbin(const char* data, int size);
extern UINT8 *scru_dump_hex (UINT8 *p, char *p_title, UINT32 len, UINT32 trace_layer, UINT32 trace_type);
static pthread_t worker_thread1 = 0;
typedef struct {
volatile unsigned long bt_wake_state;
int sock;
tUSERIAL_CBACK *ser_cb;
UINT16 baud;
UINT8 data_bits;
UINT16 parity;
UINT8 stop_bits;
UINT8 port;
tUSERIAL_OPEN_CFG open_cfg;
int sock_power_control;
int client_device_address;
struct timespec write_time;
} tLINUX_CB;
static tLINUX_CB linux_cb; /* case of multipel port support use array : [MAX_SERIAL_PORT] */
void userial_close_thread(UINT32 params);
static UINT8 device_name[BTE_APPL_MAX_USERIAL_DEV_NAME+1];
static int bSerialPortDevice = FALSE;
static int _timeout = POLL_TIMEOUT;
static BOOLEAN is_close_thread_is_waiting = FALSE;
static int change_client_addr(int addr);
int perf_log_every_count = 0;
typedef struct {
const char* label;
long lapse;
long bytes;
long count;
long overhead;
} tPERF_DATA;
/*******************************************************************************
**
** Function perf_reset
**
** Description reset performance measurement data
**
** Returns none
**
*******************************************************************************/
void perf_reset(tPERF_DATA* t)
{
t->count =
t->bytes =
t->lapse = 0;
}
/*******************************************************************************
**
** Function perf_log
**
** Description produce a log entry of cvurrent performance data
**
** Returns none
**
*******************************************************************************/
void perf_log(tPERF_DATA* t)
{
// round to nearest ms
// t->lapse += 500;
// t->lapse /= 1000;
if (t->lapse)
{
if (t->bytes)
ALOGD( "%s:%s, bytes=%ld, lapse=%ld (%d.%02d kbps) (bus data rate %d.%02d kbps) overhead %d(%d percent)\n",
__func__,
t->label, t->bytes, t->lapse,
(int)(8 * t->bytes / t->lapse), (int)(800 * t->bytes / (t->lapse)) % 100,
(int)(9 * (t->bytes + t->count * t->overhead) / t->lapse), (int)(900 * (t->bytes + t->count * t->overhead) / (t->lapse)) % 100,
(int)(t->count * t->overhead), (int)(t->count * t->overhead * 100 / t->bytes)
);
else
ALOGD( "%s:%s, lapse=%ld (average %ld)\n", __func__,
t->label, t->lapse, (int)t->lapse / t->count
);
}
perf_reset(t);
}
/*******************************************************************************
**
** Function perf_update
**
** Description update perforamnce measurement data
**
** Returns none
**
*******************************************************************************/
void perf_update(tPERF_DATA* t, long lapse, long bytes)
{
if (!perf_log_every_count)
return;
// round to nearest ms
lapse += 500;
lapse /= 1000;
t->count++;
t->bytes += bytes;
t->lapse += lapse;
if (t->count == perf_log_every_count)
perf_log(t);
}
static tPERF_DATA perf_poll = {"USERIAL_Poll", 0, 0, 0, 0};
static tPERF_DATA perf_read = {"USERIAL_Read", 0, 0, 0, 9};
static tPERF_DATA perf_write = {"USERIAL_Write", 0, 0, 0, 3};
static tPERF_DATA perf_poll_2_poll = {"USERIAL_Poll_to_Poll", 0, 0, 0, 0};
static clock_t _poll_t0 = 0;
static UINT32 userial_baud_tbl[] =
{
300, /* USERIAL_BAUD_300 0 */
600, /* USERIAL_BAUD_600 1 */
1200, /* USERIAL_BAUD_1200 2 */
2400, /* USERIAL_BAUD_2400 3 */
9600, /* USERIAL_BAUD_9600 4 */
19200, /* USERIAL_BAUD_19200 5 */
57600, /* USERIAL_BAUD_57600 6 */
115200, /* USERIAL_BAUD_115200 7 */
230400, /* USERIAL_BAUD_230400 8 */
460800, /* USERIAL_BAUD_460800 9 */
921600, /* USERIAL_BAUD_921600 10 */
1000000, /* USERIAL_BAUD_1M 11 */
1500000, /* USERIAL_BAUD_1_5M 12 */
2000000, /* USERIAL_BAUD_2M 13 */
3000000, /* USERIAL_BAUD_3M 14 */
4000000 /* USERIAL_BAUD_4M 15 */
};
/*******************************************************************************
**
** Function wake_state
**
** Description return current state of NFC_WAKE gpio
**
** Returns GPIO value to wake NFCC
**
*******************************************************************************/
static inline int wake_state()
{
return ((gSnoozeModeCfg.nfc_wake_active_mode == NFC_HAL_LP_ACTIVE_HIGH) ? UPIO_ON : UPIO_OFF);
}
/*******************************************************************************
**
** Function sleep_state
**
** Description return current state of NFC_WAKE gpio
**
** Returns GPIO value to allow NFCC to goto sleep
**
*******************************************************************************/
static inline int sleep_state()
{
return ((gSnoozeModeCfg.nfc_wake_active_mode == NFC_HAL_LP_ACTIVE_HIGH) ? UPIO_OFF : UPIO_ON);
}
/*******************************************************************************
**
** Function isWake
**
** Description return current state of NFC_WAKE gpio based on the active mode setting
**
** Returns asserted_state if it's awake, deasserted_state if it's allowed to sleep
**
*******************************************************************************/
static inline int isWake(int state)
{
int asserted_state = ((gSnoozeModeCfg.nfc_wake_active_mode == NFC_HAL_LP_ACTIVE_HIGH) ? UPIO_ON : UPIO_OFF);
return (state != -1) ?
state == asserted_state :
current_nfc_wake_state == asserted_state;
}
/*******************************************************************************
**
** Function setWriteDelay
**
** Description Record a delay for the next write operation
**
** Input Parameter delay in milliseconds
**
** Comments use this function to register a delay before next write,
** This is used in three instances: power up delay, wake delay
** and write delay
**
*******************************************************************************/
static void setWriteDelay(int delay)
{
if (delay <= 0) {
// Set a minimum delay of 5ms between back-to-back writes
delay = 5;
}
clock_gettime(CLOCK_MONOTONIC, &linux_cb.write_time);
if (delay > 1000)
{
linux_cb.write_time.tv_sec += delay / 1000;
delay %= 1000;
}
unsigned long write_delay = delay * 1000 * 1000;
linux_cb.write_time.tv_nsec += write_delay;
if (linux_cb.write_time.tv_nsec > 1000*1000*1000)
{
linux_cb.write_time.tv_nsec -= 1000*1000*1000;
linux_cb.write_time.tv_sec++;
}
}
/*******************************************************************************
**
** Function doWriteDelay
**
** Description Execute a delay as registered in setWriteDelay()
**
** Output Parameter none
**
** Returns none
**
** Comments This function calls GKI_Delay to execute a delay to fulfill
** the delay registered earlier.
**
*******************************************************************************/
static void doWriteDelay()
{
struct timespec now;
clock_gettime(CLOCK_MONOTONIC, &now);
long delay = 0;
if (now.tv_sec > linux_cb.write_time.tv_sec)
return;
else if (now.tv_sec == linux_cb.write_time.tv_sec)
{
if (now.tv_nsec > linux_cb.write_time.tv_nsec)
return;
delay = (linux_cb.write_time.tv_nsec - now.tv_nsec) / 1000000;
}
else
delay = (linux_cb.write_time.tv_sec - now.tv_sec) * 1000 + linux_cb.write_time.tv_nsec / 1000000 - now.tv_nsec / 1000000;
if (delay > 0 && delay < 1000)
{
ALOGD_IF((appl_trace_level>=BT_TRACE_LEVEL_DEBUG), "doWriteDelay() delay %ld ms", delay);
GKI_delay(delay);
}
}
/*******************************************************************************
**
** Function create_signal_fds
**
** Description create a socketpair for read thread to use
**
** Returns file descriptor
**
*******************************************************************************/
static int signal_fds[2];
static inline int create_signal_fds(struct pollfd* set)
{
if (signal_fds[0] == 0 && socketpair(AF_UNIX, SOCK_STREAM, 0, signal_fds) < 0)
{
ALOGE("%s create_signal_sockets:socketpair failed, errno: %d", __func__, errno);
return -1;
}
set->fd = signal_fds[0];
return signal_fds[0];
}
/*******************************************************************************
**
** Function close_signal_fds
**
** Description close the socketpair
**
** Returns none
**
*******************************************************************************/
static inline void close_signal_fds()
{
int stat = 0;
stat = close(signal_fds[0]);
if (stat == -1)
ALOGE ("%s, fail close index 0; errno=%d", __FUNCTION__, errno);
signal_fds[0] = 0;
stat = close(signal_fds[1]);
if (stat == -1)
ALOGE ("%s, fail close index 1; errno=%d", __FUNCTION__, errno);
signal_fds[1] = 0;
}
/*******************************************************************************
**
** Function send_wakeup_signal
**
** Description send a one byte data to the socket as signal to the read thread
** for it to stop
**
** Returns number of bytes sent, or error no
**
*******************************************************************************/
static inline int send_wakeup_signal()
{
char sig_on = 1;
ALOGD("%s: Sending signal to %d", __func__, signal_fds[1]);
return send(signal_fds[1], &sig_on, sizeof(sig_on), 0);
}
/*******************************************************************************
**
** Function reset_signal
**
** Description read the one byte data from the socket
**
** Returns received data
**
*******************************************************************************/
static inline int reset_signal()
{
char sig_recv = 0;
ALOGD("%s: Receiving signal from %d", __func__, signal_fds[0]);
recv(signal_fds[0], &sig_recv, sizeof(sig_recv), MSG_WAITALL);
return (int)sig_recv;
}
/*******************************************************************************
**
** Function is_signaled
**
** Description test if there's data waiting on the socket
**
** Returns TRUE is data is available
**
*******************************************************************************/
static inline int is_signaled(struct pollfd* set)
{
return ((set->revents & POLLIN) == POLLIN) || ((set->revents & POLLRDNORM) == POLLRDNORM) ;
}
/******************************************************************************/
typedef unsigned char uchar;
BUFFER_Q Userial_in_q;
/*******************************************************************************
**
** Function USERIAL_GetLineSpeed
**
** Description This function convert USERIAL baud to line speed.
**
** Output Parameter None
**
** Returns line speed
**
*******************************************************************************/
UDRV_API extern UINT32 USERIAL_GetLineSpeed(UINT8 baud)
{
return (baud <= USERIAL_BAUD_4M) ?
userial_baud_tbl[baud-USERIAL_BAUD_300] : 0;
}
/*******************************************************************************
**
** Function USERIAL_GetBaud
**
** Description This function convert line speed to USERIAL baud.
**
** Output Parameter None
**
** Returns line speed
**
*******************************************************************************/
UDRV_API extern UINT8 USERIAL_GetBaud(UINT32 line_speed)
{
UINT8 i;
for (i = USERIAL_BAUD_300; i <= USERIAL_BAUD_921600; i++)
{
if (userial_baud_tbl[i-USERIAL_BAUD_300] == line_speed)
return i;
}
return USERIAL_BAUD_AUTO;
}
/*******************************************************************************
**
** Function USERIAL_Init
**
** Description This function initializes the serial driver.
**
** Output Parameter None
**
** Returns Nothing
**
*******************************************************************************/
UDRV_API void USERIAL_Init(void * p_cfg)
{
ALOGI(__FUNCTION__);
//if userial_close_thread() is waiting to run; let it go first;
//let it finish; then continue this function
while (TRUE)
{
pthread_mutex_lock(&close_thread_mutex);
if (is_close_thread_is_waiting)
{
pthread_mutex_unlock(&close_thread_mutex);
ALOGI("USERIAL_Init(): wait for close-thread");
sleep (1);
}
else
break;
}
memset(&linux_cb, 0, sizeof(linux_cb));
linux_cb.sock = -1;
linux_cb.ser_cb = NULL;
linux_cb.sock_power_control = -1;
linux_cb.client_device_address = 0;
GKI_init_q(&Userial_in_q);
pthread_mutex_unlock(&close_thread_mutex);
}
/*******************************************************************************
**
** Function my_read
**
** Description This function read a packet from driver.
**
** Output Parameter None
**
** Returns number of bytes in the packet or error code
**
*******************************************************************************/
int my_read(int fd, uchar *pbuf, int len)
{
struct pollfd fds[2];
int n = 0;
int ret = 0;
int count = 0;
int offset = 0;
clock_t t1, t2;
if (!isLowSpeedTransport && _timeout != POLL_TIMEOUT)
ALOGD_IF((appl_trace_level>=BT_TRACE_LEVEL_DEBUG), "%s: enter, pbuf=%lx, len = %d\n", __func__, (unsigned long)pbuf, len);
memset(pbuf, 0, len);
/* need to use select in order to avoid collistion between read and close on same fd */
/* Initialize the input set */
fds[0].fd = fd;
fds[0].events = POLLIN | POLLERR | POLLRDNORM;
fds[0].revents = 0;
create_signal_fds(&fds[1]);
fds[1].events = POLLIN | POLLERR | POLLRDNORM;
fds[1].revents = 0;
t1 = clock();
n = TEMP_FAILURE_RETRY(poll(fds, 2, _timeout));
t2 = clock();
perf_update(&perf_poll, t2 - t1, 0);
if (_poll_t0)
perf_update(&perf_poll_2_poll, t2 - _poll_t0, 0);
_poll_t0 = t2;
/* See if there was an error */
if (n < 0)
{
ALOGD( "select failed; errno = %d\n", errno);
return -errno;
}
else if (n == 0)
return -EAGAIN;
if (is_signaled(&fds[1]))
{
ALOGD( "%s: exit signal received\n", __func__);
reset_signal();
return -1;
}
if (!bSerialPortDevice || len < MIN_BUFSIZE)
count = len;
else
count = 1;
do {
t2 = clock();
ret = TEMP_FAILURE_RETRY(read(fd, pbuf+offset, (size_t)count));
if (ret > 0)
perf_update(&perf_read, clock()-t2, ret);
if (ret <= 0 || !bSerialPortDevice || len < MIN_BUFSIZE)
break;
if (isLowSpeedTransport)
goto done;
if (offset == 0)
{
if (pbuf[offset] == HCIT_TYPE_NFC)
count = 3;
else if (pbuf[offset] == HCIT_TYPE_EVENT)
count = 2;
else
{
ALOGD( "%s: unknown HCIT type header pbuf[%d] = %x\n", __func__, offset, pbuf[offset]);
break;
}
offset = 1;
}
else if (offset == 1)
{
offset += count;
count = pbuf[offset-1];
if (count > (len - offset)) //if (count > (remaining buffer size))
count = len - offset; //only read what the remaining buffer size can hold
}
else
{
offset += ret;
count -= ret;
}
if (count == 0)
{
ret = offset;
break;
}
} while (count > 0);
#if VALIDATE_PACKET
/*
* vallidate the packet structure
*/
if (ret > 0 && len >= MIN_BUFSIZE)
{
count = 0;
while (count < ret)
{
if (pbuf[count] == HCIT_TYPE_NFC)
{
if (USERIAL_Debug_verbose)
scru_dump_hex(pbuf+count, NULL, pbuf[count+3]+4, 0, 0);
count += pbuf[count+3]+4;
}
else if (pbuf[count] == HCIT_TYPE_EVENT)
{
if (USERIAL_Debug_verbose)
scru_dump_hex(pbuf+count, NULL, pbuf[count+2]+3, 0, 0);
count += pbuf[count+2]+3;
}
else
{
ALOGD( "%s: unknown HCIT type header pbuf[%d] = %x, remain %d bytes\n", __func__, count, pbuf[count], ret-count);
scru_dump_hex(pbuf+count, NULL, ret - count, 0, 0);
break;
}
} /* while*/
}
#endif
done:
if (!isLowSpeedTransport)
ALOGD_IF((appl_trace_level>=BT_TRACE_LEVEL_DEBUG), "%s: return %d(0x%x) bytes, errno=%d count=%d, n=%d, timeout=%d\n", __func__,
ret, ret, errno, count, n, _timeout);
if (_timeout == POLL_TIMEOUT)
_timeout = -1;
return ret;
}
extern BOOLEAN gki_chk_buf_damage(void *p_buf);
static int sRxLength = 0;
/*******************************************************************************
**
** Function userial_read_thread
**
** Description entry point of read thread.
**
** Output Parameter None
**
** Returns 0
**
*******************************************************************************/
UINT32 userial_read_thread(UINT32 arg)
{
int rx_length;
int error_count = 0;
int bErrorReported = 0;
int iMaxError = MAX_ERROR;
BT_HDR *p_buf = NULL;
worker_thread1 = pthread_self();
ALOGD( "start userial_read_thread, id=%lx", worker_thread1);
_timeout = POLL_TIMEOUT;
for (;linux_cb.sock > 0;)
{
BT_HDR *p_buf;
UINT8 *current_packet;
if ((p_buf = (BT_HDR *) GKI_getpoolbuf( USERIAL_POOL_ID ) )!= NULL)
{
p_buf->offset = 0;
p_buf->layer_specific = 0;
current_packet = (UINT8 *) (p_buf + 1);
rx_length = my_read(linux_cb.sock, current_packet, READ_LIMIT);
}
else
{
ALOGE( "userial_read_thread(): unable to get buffer from GKI p_buf = %p poolid = %d\n", p_buf, USERIAL_POOL_ID);
rx_length = 0; /* paranoia setting */
GKI_delay( NO_GKI_BUFFER_RECOVER_TIME );
continue;
}
if (rx_length > 0)
{
bErrorReported = 0;
error_count = 0;
iMaxError = 3;
if (rx_length > sRxLength)
sRxLength = rx_length;
p_buf->len = (UINT16)rx_length;
GKI_enqueue(&Userial_in_q, p_buf);
if (!isLowSpeedTransport)
ALOGD_IF((appl_trace_level>=BT_TRACE_LEVEL_DEBUG), "userial_read_thread(): enqueued p_buf=%p, count=%d, length=%d\n",
p_buf, Userial_in_q.count, rx_length);
if (linux_cb.ser_cb != NULL)
(*linux_cb.ser_cb)(linux_cb.port, USERIAL_RX_READY_EVT, (tUSERIAL_EVT_DATA *)p_buf);
GKI_send_event(USERIAL_HAL_TASK, HCISU_EVT);
}
else
{
GKI_freebuf( p_buf );
if (rx_length == -EAGAIN)
continue;
else if (rx_length == -1)
{
ALOGD( "userial_read_thread(): exiting\n");
break;
}
else if (rx_length == 0 && !isWake(-1))
continue;
++error_count;
if (rx_length <= 0 && ((error_count > 0) && ((error_count % iMaxError) == 0)))
{
if (bErrorReported == 0)
{
ALOGE( "userial_read_thread(): my_read returned (%d) error count = %d, errno=%d return USERIAL_ERR_EVT\n",
rx_length, error_count, errno);
if (linux_cb.ser_cb != NULL)
(*linux_cb.ser_cb)(linux_cb.port, USERIAL_ERR_EVT, (tUSERIAL_EVT_DATA *)p_buf);
GKI_send_event(USERIAL_HAL_TASK, HCISU_EVT);
++bErrorReported;
}
if (sRxLength == 0)
{
ALOGE( "userial_read_thread(): my_read returned (%d) error count = %d, errno=%d exit read thread\n",
rx_length, error_count, errno);
break;
}
}
}
} /* for */
ALOGD( "userial_read_thread(): freeing GKI_buffers\n");
while ((p_buf = (BT_HDR *) GKI_dequeue (&Userial_in_q)) != NULL)
{
GKI_freebuf(p_buf);
ALOGD("userial_read_thread: dequeued buffer from Userial_in_q\n");
}
GKI_exit_task (GKI_get_taskid ());
ALOGD( "USERIAL READ: EXITING TASK\n");
return 0;
}
/*******************************************************************************
**
** Function userial_to_tcio_baud
**
** Description helper function converts USERIAL baud rates into TCIO conforming baud rates
**
** Output Parameter None
**
** Returns TRUE - success
** FALSE - unsupported baud rate, default of 115200 is used
**
*******************************************************************************/
BOOLEAN userial_to_tcio_baud(UINT8 cfg_baud, UINT32 * baud)
{
if (cfg_baud == USERIAL_BAUD_600)
*baud = B600;
else if (cfg_baud == USERIAL_BAUD_1200)
*baud = B1200;
else if (cfg_baud == USERIAL_BAUD_9600)
*baud = B9600;
else if (cfg_baud == USERIAL_BAUD_19200)
*baud = B19200;
else if (cfg_baud == USERIAL_BAUD_57600)
*baud = B57600;
else if (cfg_baud == USERIAL_BAUD_115200)
*baud = B115200 | CBAUDEX;
else if (cfg_baud == USERIAL_BAUD_230400)
*baud = B230400;
else if (cfg_baud == USERIAL_BAUD_460800)
*baud = B460800;
else if (cfg_baud == USERIAL_BAUD_921600)
*baud = B921600;
else if (cfg_baud == USERIAL_BAUD_1M)
*baud = B1000000;
else if (cfg_baud == USERIAL_BAUD_2M)
*baud = B2000000;
else if (cfg_baud == USERIAL_BAUD_3M)
*baud = B3000000;
else if (cfg_baud == USERIAL_BAUD_4M)
*baud = B4000000;
else
{
ALOGE( "userial_to_tcio_baud: unsupported baud idx %i", cfg_baud );
*baud = B115200;
return FALSE;
}
return TRUE;
}
#if (USERIAL_USE_IO_BT_WAKE==TRUE)
/*******************************************************************************
**
** Function userial_io_init_bt_wake
**
** Description helper function to set the open state of the bt_wake if ioctl
** is used. it should not hurt in the rfkill case but it might
** be better to compile it out.
**
** Returns none
**
*******************************************************************************/
void userial_io_init_bt_wake( int fd, unsigned long * p_wake_state )
{
/* assert BT_WAKE for ioctl. should NOT hurt on rfkill version */
ioctl( fd, USERIAL_IO_BT_WAKE_ASSERT, NULL);
ioctl( fd, USERIAL_IO_BT_WAKE_GET_ST, p_wake_state );
if ( *p_wake_state == 0)
ALOGI("\n***userial_io_init_bt_wake(): Ooops, asserted BT_WAKE signal, but still got BT_WAKE state == to %d\n",
*p_wake_state );
*p_wake_state = 1;
}
#endif
/*******************************************************************************
**
** Function USERIAL_Open
**
** Description Open the indicated serial port with the given configuration
**
** Output Parameter None
**
** Returns Nothing
**
*******************************************************************************/
UDRV_API void USERIAL_Open(tUSERIAL_PORT port, tUSERIAL_OPEN_CFG *p_cfg, tUSERIAL_CBACK *p_cback)
{
UINT32 baud = 0;
UINT8 data_bits = 0;
UINT16 parity = 0;
UINT8 stop_bits = 0;
struct termios termios;
const char ttyusb[] = "/dev/ttyUSB";
const char devtty[] = "/dev/tty";
unsigned long num = 0;
int ret = 0;
ALOGI("USERIAL_Open(): enter");
//if userial_close_thread() is waiting to run; let it go first;
//let it finish; then continue this function
while (TRUE)
{
pthread_mutex_lock(&close_thread_mutex);
if (is_close_thread_is_waiting)
{
pthread_mutex_unlock(&close_thread_mutex);
ALOGI("USERIAL_Open(): wait for close-thread");
sleep (1);
}
else
break;
}
// restore default power off delay settings incase they were changed in userial_set_poweroff_delays()
gPrePowerOffDelay = 0;
gPostPowerOffDelay = 0;
if ( !GetStrValue ( NAME_TRANSPORT_DRIVER, userial_dev, sizeof ( userial_dev ) ) )
strcpy ( userial_dev, default_transport );
if ( GetNumValue ( NAME_UART_PORT, &num, sizeof ( num ) ) )
uart_port = num;
if ( GetNumValue ( NAME_LOW_SPEED_TRANSPORT, &num, sizeof ( num ) ) )
isLowSpeedTransport = num;
if ( GetNumValue ( NAME_NFC_WAKE_DELAY, &num, sizeof ( num ) ) )
nfc_wake_delay = num;
if ( GetNumValue ( NAME_NFC_WRITE_DELAY, &num, sizeof ( num ) ) )
nfc_write_delay = num;
if ( GetNumValue ( NAME_PERF_MEASURE_FREQ, &num, sizeof ( num ) ) )
perf_log_every_count = num;
if ( GetNumValue ( NAME_POWER_ON_DELAY, &num, sizeof ( num ) ) )
gPowerOnDelay = num;
if ( GetNumValue ( NAME_PRE_POWER_OFF_DELAY, &num, sizeof ( num ) ) )
gPrePowerOffDelay = num;
if ( GetNumValue ( NAME_POST_POWER_OFF_DELAY, &num, sizeof ( num ) ) )
gPostPowerOffDelay = num;
if ( GetNumValue ( NAME_POWER_OFF_MODE, &num, sizeof ( num ) ) )
gPowerOffMode = num;
ALOGI("USERIAL_Open() device: %s port=%d, uart_port=%d WAKE_DELAY(%d) WRITE_DELAY(%d) POWER_ON_DELAY(%d) PRE_POWER_OFF_DELAY(%d) POST_POWER_OFF_DELAY(%d)",
(char*)userial_dev, port, uart_port, nfc_wake_delay, nfc_write_delay, gPowerOnDelay, gPrePowerOffDelay,
gPostPowerOffDelay);
strcpy((char*)device_name, (char*)userial_dev);
sRxLength = 0;
_poll_t0 = 0;
if ((strncmp(userial_dev, ttyusb, sizeof(ttyusb)-1) == 0) ||
(strncmp(userial_dev, devtty, sizeof(devtty)-1) == 0) )
{
if (uart_port >= MAX_SERIAL_PORT)
{
ALOGD( "Port > MAX_SERIAL_PORT\n");
goto done_open;
}
bSerialPortDevice = TRUE;
sprintf((char*)device_name, "%s%d", (char*)userial_dev, uart_port);
ALOGI("USERIAL_Open() using device_name: %s ", (char*)device_name);
if (!userial_to_tcio_baud(p_cfg->baud, &baud))
goto done_open;
if (p_cfg->fmt & USERIAL_DATABITS_8)
data_bits = CS8;
else if (p_cfg->fmt & USERIAL_DATABITS_7)
data_bits = CS7;
else if (p_cfg->fmt & USERIAL_DATABITS_6)
data_bits = CS6;
else if (p_cfg->fmt & USERIAL_DATABITS_5)
data_bits = CS5;
else
goto done_open;
if (p_cfg->fmt & USERIAL_PARITY_NONE)
parity = 0;
else if (p_cfg->fmt & USERIAL_PARITY_EVEN)
parity = PARENB;
else if (p_cfg->fmt & USERIAL_PARITY_ODD)
parity = (PARENB | PARODD);
else
goto done_open;
if (p_cfg->fmt & USERIAL_STOPBITS_1)
stop_bits = 0;
else if (p_cfg->fmt & USERIAL_STOPBITS_2)
stop_bits = CSTOPB;
else
goto done_open;
}
else
strcpy((char*)device_name, (char*)userial_dev);
{
ALOGD("%s Opening %s\n", __FUNCTION__, device_name);
if ((linux_cb.sock = open((char*)device_name, O_RDWR | O_NOCTTY )) == -1)
{
ALOGI("%s unable to open %s", __FUNCTION__, device_name);
GKI_send_event(NFC_HAL_TASK, NFC_HAL_TASK_EVT_TERMINATE);
goto done_open;
}
ALOGD( "%s sock = %d\n", __FUNCTION__, linux_cb.sock);
if (GetStrValue ( NAME_POWER_CONTROL_DRIVER, power_control_dev, sizeof ( power_control_dev ) ) &&
power_control_dev[0] != '\0')
{
if (strcmp(power_control_dev, userial_dev) == 0)
linux_cb.sock_power_control = linux_cb.sock;
else
{
if ((linux_cb.sock_power_control = open((char*)power_control_dev, O_RDWR | O_NOCTTY )) == -1)
{
ALOGI("%s unable to open %s", __FUNCTION__, power_control_dev);
}
}
}
if ( bSerialPortDevice )
{
tcflush(linux_cb.sock, TCIOFLUSH);
tcgetattr(linux_cb.sock, &termios);
termios.c_cflag &= ~(CSIZE | PARENB);
termios.c_cflag = CLOCAL|CREAD|data_bits|stop_bits|parity;
if (!parity)
termios.c_cflag |= IGNPAR;
// termios.c_cflag &= ~CRTSCTS;
termios.c_oflag = 0;
termios.c_lflag &= ~(ECHO | ECHONL | ICANON | IEXTEN | ISIG);
termios.c_iflag &= ~(BRKINT | ICRNL | INLCR | ISTRIP | IXON | IGNBRK | PARMRK | INPCK);
termios.c_lflag = 0;
termios.c_iflag = 0;
cfsetospeed(&termios, baud);
cfsetispeed(&termios, baud);
termios.c_cc[VTIME] = 0;
termios.c_cc[VMIN] = 1;
tcsetattr(linux_cb.sock, TCSANOW, &termios);
tcflush(linux_cb.sock, TCIOFLUSH);
#if (USERIAL_USE_IO_BT_WAKE==TRUE)
userial_io_init_bt_wake( linux_cb.sock, &linux_cb.bt_wake_state );
#endif
GKI_delay(gPowerOnDelay);
}
else
{
USERIAL_PowerupDevice(port);
}
}
linux_cb.ser_cb = p_cback;
linux_cb.port = port;
memcpy(&linux_cb.open_cfg, p_cfg, sizeof(tUSERIAL_OPEN_CFG));
GKI_create_task ((TASKPTR)userial_read_thread, USERIAL_HAL_TASK, (INT8*)"USERIAL_HAL_TASK", 0, 0, (pthread_cond_t*)NULL, NULL);
#if (defined USERIAL_DEBUG) && (USERIAL_DEBUG == TRUE)
ALOGD( "Leaving USERIAL_Open\n");
#endif
#if (SERIAL_AMBA == TRUE)
/* give 20ms time for reader thread */
GKI_delay(20);
#endif
done_open:
pthread_mutex_unlock(&close_thread_mutex);
ALOGI("USERIAL_Open(): exit");
return;
}
/*******************************************************************************
**
** Function USERIAL_Read
**
** Description Read data from a serial port using byte buffers.
**
** Output Parameter None
**
** Returns Number of bytes actually read from the serial port and
** copied into p_data. This may be less than len.
**
*******************************************************************************/
static BT_HDR *pbuf_USERIAL_Read = NULL;
UDRV_API UINT16 USERIAL_Read(tUSERIAL_PORT port, UINT8 *p_data, UINT16 len)
{
UINT16 total_len = 0;
UINT16 copy_len = 0;
UINT8 * current_packet = NULL;
#if (defined USERIAL_DEBUG) && (USERIAL_DEBUG == TRUE)
ALOGD( "%s ++ len=%d pbuf_USERIAL_Read=%p, p_data=%p\n", __func__, len, pbuf_USERIAL_Read, p_data);
#endif
do
{
if (pbuf_USERIAL_Read != NULL)
{
current_packet = ((UINT8 *)(pbuf_USERIAL_Read + 1)) + (pbuf_USERIAL_Read->offset);
if ((pbuf_USERIAL_Read->len) <= (len - total_len))
copy_len = pbuf_USERIAL_Read->len;
else
copy_len = (len - total_len);
memcpy((p_data + total_len), current_packet, copy_len);
total_len += copy_len;
pbuf_USERIAL_Read->offset += copy_len;
pbuf_USERIAL_Read->len -= copy_len;
if (pbuf_USERIAL_Read->len == 0)
{
GKI_freebuf(pbuf_USERIAL_Read);
pbuf_USERIAL_Read = NULL;
}
}
if (pbuf_USERIAL_Read == NULL && (total_len < len))
pbuf_USERIAL_Read = (BT_HDR *)GKI_dequeue(&Userial_in_q);
} while ((pbuf_USERIAL_Read != NULL) && (total_len < len));
#if (defined USERIAL_DEBUG) && (USERIAL_DEBUG == TRUE)
ALOGD( "%s: returned %d bytes", __func__, total_len);
#endif
return total_len;
}
/*******************************************************************************
**
** Function USERIAL_Readbuf
**
** Description Read data from a serial port using GKI buffers.
**
** Output Parameter Pointer to a GKI buffer which contains the data.
**
** Returns Nothing
**
** Comments The caller of this function is responsible for freeing the
** GKI buffer when it is finished with the data. If there is
** no data to be read, the value of the returned pointer is
** NULL.
**
*******************************************************************************/
UDRV_API void USERIAL_ReadBuf(tUSERIAL_PORT port, BT_HDR **p_buf)
{
}
/*******************************************************************************
**
** Function USERIAL_WriteBuf
**
** Description Write data to a serial port using a GKI buffer.
**
** Output Parameter None
**
** Returns TRUE if buffer accepted for write.
** FALSE if there is already a buffer being processed.
**
** Comments The buffer will be freed by the serial driver. Therefore,
** the application calling this function must not free the
** buffer.
**
*******************************************************************************/
UDRV_API BOOLEAN USERIAL_WriteBuf(tUSERIAL_PORT port, BT_HDR *p_buf)
{
return FALSE;
}
/*******************************************************************************
**
** Function USERIAL_Write
**
** Description Write data to a serial port using a byte buffer.
**
** Output Parameter None
**
** Returns Number of bytes actually written to the transport. This
** may be less than len.
**
*******************************************************************************/
UDRV_API UINT16 USERIAL_Write(tUSERIAL_PORT port, UINT8 *p_data, UINT16 len)
{
int ret = 0, total = 0;
int i = 0;
clock_t t;
ALOGD_IF((appl_trace_level>=BT_TRACE_LEVEL_DEBUG), "USERIAL_Write: (%d bytes)", len);
pthread_mutex_lock(&close_thread_mutex);
doWriteDelay();
t = clock();
while (len != 0 && linux_cb.sock != -1)
{
ret = TEMP_FAILURE_RETRY(write(linux_cb.sock, p_data + total, len));
if (ret < 0)
{
ALOGE("USERIAL_Write len = %d, ret = %d, errno = %d", len, ret, errno);
break;
}
else
{
ALOGD_IF((appl_trace_level>=BT_TRACE_LEVEL_DEBUG), "USERIAL_Write len = %d, ret = %d", len, ret);
}
total += ret;
len -= ret;
}
perf_update(&perf_write, clock() - t, total);
/* register a delay for next write */
setWriteDelay(total * nfc_write_delay / 1000);
pthread_mutex_unlock(&close_thread_mutex);
return ((UINT16)total);
}
/*******************************************************************************
**
** Function userial_change_rate
**
** Description change naud rate
**
** Output Parameter None
**
** Returns None
**
*******************************************************************************/
void userial_change_rate(UINT8 baud)
{
#if defined (USING_BRCM_USB) && (USING_BRCM_USB == FALSE)
struct termios termios;
#endif
#if (USERIAL_USE_TCIO_BAUD_CHANGE==TRUE)
UINT32 tcio_baud;
#endif
#if defined (USING_BRCM_USB) && (USING_BRCM_USB == FALSE)
tcflush(linux_cb.sock, TCIOFLUSH);
tcgetattr(linux_cb.sock, &termios);
cfmakeraw(&termios);
cfsetospeed(&termios, baud);
cfsetispeed(&termios, baud);
termios.c_cflag |= (CLOCAL | CREAD | CRTSCTS | stop_bits);
tcsetattr(linux_cb.sock, TCSANOW, &termios);
tcflush(linux_cb.sock, TCIOFLUSH);
#else
#if (USERIAL_USE_TCIO_BAUD_CHANGE==FALSE)
fprintf(stderr, "userial_change_rate: Closing UART Port\n");
ALOGI("userial_change_rate: Closing UART Port\n");
USERIAL_Close(linux_cb.port);
GKI_delay(50);
/* change baud rate in settings - leave everything else the same */
linux_cb.open_cfg.baud = baud;
ALOGD( "userial_change_rate: Attempting to reopen the UART Port at 0x%08x\n", (unsigned int)USERIAL_GetLineSpeed(baud));
ALOGI("userial_change_rate: Attempting to reopen the UART Port at %i\n", (unsigned int)USERIAL_GetLineSpeed(baud));
USERIAL_Open(linux_cb.port, &linux_cb.open_cfg, linux_cb.ser_cb);
#else /* amba uart */
fprintf(stderr, "userial_change_rate(): changeing baud rate via TCIO \n");
ALOGI( "userial_change_rate: (): changeing baud rate via TCIO \n");
/* change baud rate in settings - leave everything else the same */
linux_cb.open_cfg.baud = baud;
if (!userial_to_tcio_baud(linux_cb.open_cfg.baud, &tcio_baud))
return;
tcflush(linux_cb.sock, TCIOFLUSH);
/* get current settings. they should be fine besides baud rate we want to change */
tcgetattr(linux_cb.sock, &termios);
/* set input/output baudrate */
cfsetospeed(&termios, tcio_baud);
cfsetispeed(&termios, tcio_baud);
tcsetattr(linux_cb.sock, TCSANOW, &termios);
tcflush(linux_cb.sock, TCIOFLUSH);
#endif
#endif /* USING_BRCM_USB */
}
/*******************************************************************************
**
** Function userial_close_port
**
** Description close the transport driver
**
** Returns Nothing
**
*******************************************************************************/
void userial_close_port( void )
{
USERIAL_Close(linux_cb.port);
}
/*******************************************************************************
**
** Function USERIAL_Ioctl
**
** Description Perform an operation on a serial port.
**
** Output Parameter The p_data parameter is either an input or output depending
** on the operation.
**
** Returns Nothing
**
*******************************************************************************/
UDRV_API void USERIAL_Ioctl(tUSERIAL_PORT port, tUSERIAL_OP op, tUSERIAL_IOCTL_DATA *p_data)
{
#if (defined LINUX_OS) && (LINUX_OS == TRUE)
USB_SCO_CONTROL ioctl_data;
/* just ignore port parameter as we are using USB in this case */
#endif
switch (op)
{
case USERIAL_OP_FLUSH:
break;
case USERIAL_OP_FLUSH_RX:
break;
case USERIAL_OP_FLUSH_TX:
break;
case USERIAL_OP_BAUD_WR:
ALOGI( "USERIAL_Ioctl: Received USERIAL_OP_BAUD_WR on port: %d, ioctl baud%i\n", port, p_data->baud);
linux_cb.port = port;
userial_change_rate(p_data->baud);
break;
default:
break;
}
return;
}
/*******************************************************************************
**
** Function USERIAL_SetPowerOffDelays
**
** Description Set power off delays used during USERIAL_Close(). The
** values in the conf. file setting override these if set.
**
** Returns None.
**
*******************************************************************************/
UDRV_API void USERIAL_SetPowerOffDelays(int pre_poweroff_delay, int post_poweroff_delay)
{
gPrePowerOffDelay = pre_poweroff_delay;
gPostPowerOffDelay = post_poweroff_delay;
}
/*******************************************************************************
**
** Function USERIAL_Close
**
** Description Close a serial port
**
** Output Parameter None
**
** Returns Nothing
**
*******************************************************************************/
UDRV_API void USERIAL_Close(tUSERIAL_PORT port)
{
pthread_attr_t attr;
pthread_t close_thread;
UINT8 res[10];
UINT32 delay = 100;
ALOGD ("%s: enter; gPowerOffMode=%d", __FUNCTION__, gPowerOffMode);
/* Do we need to put NFCC into certain mode before switching off?... */
if (gPowerOffMode != POM_NORMAL)
{
switch (gPowerOffMode)
{
case POM_CE3SO:
ALOGD ("%s: Sending Set_PwrLevel cmd to go to CE3-SO mode", __FUNCTION__);
USERIAL_Write(port, ce3_so_cmd, sizeof (ce3_so_cmd));
delay = 1000;
break;
case POM_NFC_OFF:
ALOGD ("%s: Sending Set_NfcOff cmd", __FUNCTION__);
USERIAL_Write(port, set_nfc_off_cmd, sizeof (set_nfc_off_cmd));
break;
}
USERIAL_Read(port, res, sizeof ( res ));
GKI_delay(delay);
}
// check to see if thread is already running
if (pthread_mutex_trylock(&close_thread_mutex) == 0)
{
// mutex aquired so thread is not running
is_close_thread_is_waiting = TRUE;
pthread_mutex_unlock(&close_thread_mutex);
// close transport in a new thread so we don't block the caller
// make thread detached, no other thread will join
pthread_attr_init(&attr);
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
pthread_create( &close_thread, &attr, (void *)userial_close_thread, NULL);
pthread_attr_destroy(&attr);
}
else
{
// mutex not aquired to thread is already running
ALOGD( "USERIAL_Close(): already closing \n");
}
ALOGD ("%s: exit", __FUNCTION__);
}
/*******************************************************************************
**
** Function userial_close_thread
**
** Description Thread to close USERIAL
**
** Returns None.
**
*******************************************************************************/
void userial_close_thread(UINT32 params)
{
BT_HDR *p_buf = NULL;
int result;
ALOGD( "%s: closing transport (%d)\n", __FUNCTION__, linux_cb.sock);
pthread_mutex_lock(&close_thread_mutex);
is_close_thread_is_waiting = FALSE;
if (linux_cb.sock <= 0)
{
ALOGD( "%s: already closed (%d)\n", __FUNCTION__, linux_cb.sock);
pthread_mutex_unlock(&close_thread_mutex);
return;
}
send_wakeup_signal();
result = pthread_join( worker_thread1, NULL );
if ( result < 0 )
ALOGE( "%s: pthread_join() FAILED: result: %d", __FUNCTION__, result );
else
ALOGD( "%s: pthread_join() joined: result: %d", __FUNCTION__, result );
if (linux_cb.sock_power_control > 0)
{
result = ioctl(linux_cb.sock_power_control, BCMNFC_WAKE_CTL, sleep_state());
ALOGD("%s: Delay %dms before turning off the chip", __FUNCTION__, gPrePowerOffDelay);
GKI_delay(gPrePowerOffDelay);
result = ioctl(linux_cb.sock_power_control, BCMNFC_POWER_CTL, 0);
ALOGD("%s: Delay %dms after turning off the chip", __FUNCTION__, gPostPowerOffDelay);
GKI_delay(gPostPowerOffDelay);
}
result = close(linux_cb.sock);
if (result == -1)
ALOGE("%s: fail close linux_cb.sock; errno=%d", __FUNCTION__, errno);
if (linux_cb.sock_power_control > 0 && linux_cb.sock_power_control != linux_cb.sock)
result = close(linux_cb.sock_power_control);
if (result == -1)
ALOGE("%s: fail close linux_cb.sock_power_control; errno=%d", __FUNCTION__, errno);
linux_cb.sock_power_control = -1;
linux_cb.sock = -1;
close_signal_fds();
pthread_mutex_unlock(&close_thread_mutex);
ALOGD("%s: exiting", __FUNCTION__);
}
/*******************************************************************************
**
** Function USERIAL_Feature
**
** Description Check whether a feature of the serial API is supported.
**
** Output Parameter None
**
** Returns TRUE if the feature is supported
** FALSE if the feature is not supported
**
*******************************************************************************/
UDRV_API BOOLEAN USERIAL_Feature(tUSERIAL_FEATURE feature)
{
switch (feature)
{
case USERIAL_FEAT_PORT_1:
case USERIAL_FEAT_PORT_2:
case USERIAL_FEAT_PORT_3:
case USERIAL_FEAT_PORT_4:
case USERIAL_FEAT_BAUD_600:
case USERIAL_FEAT_BAUD_1200:
case USERIAL_FEAT_BAUD_9600:
case USERIAL_FEAT_BAUD_19200:
case USERIAL_FEAT_BAUD_57600:
case USERIAL_FEAT_BAUD_115200:
case USERIAL_FEAT_STOPBITS_1:
case USERIAL_FEAT_STOPBITS_2:
case USERIAL_FEAT_PARITY_NONE:
case USERIAL_FEAT_PARITY_EVEN:
case USERIAL_FEAT_PARITY_ODD:
case USERIAL_FEAT_DATABITS_5:
case USERIAL_FEAT_DATABITS_6:
case USERIAL_FEAT_DATABITS_7:
case USERIAL_FEAT_DATABITS_8:
case USERIAL_FEAT_FC_HW:
case USERIAL_FEAT_BUF_BYTE:
case USERIAL_FEAT_OP_FLUSH_RX:
case USERIAL_FEAT_OP_FLUSH_TX:
return TRUE;
default:
return FALSE;
}
return FALSE;
}
/*****************************************************************************
**
** Function UPIO_Set
**
** Description
** This function sets one or more GPIO devices to the given state.
** Multiple GPIOs of the same type can be masked together to set more
** than one GPIO. This function can only be used on types UPIO_LED and
** UPIO_GENERAL.
**
** Input Parameters:
** type The type of device.
** pio Indicates the particular GPIOs.
** state The desired state.
**
** Output Parameter:
** None.
**
** Returns:
** None.
**
*****************************************************************************/
UDRV_API void UPIO_Set(tUPIO_TYPE type, tUPIO pio, tUPIO_STATE new_state)
{
int ret;
if (type == UPIO_GENERAL)
{
if (pio == NFC_HAL_LP_NFC_WAKE_GPIO)
{
if (new_state == UPIO_ON || new_state == UPIO_OFF)
{
if (linux_cb.sock_power_control > 0)
{
ALOGD("%s: ioctl, state=%d", __func__, new_state);
ret = ioctl(linux_cb.sock_power_control, BCMNFC_WAKE_CTL, new_state);
if (isWake(new_state) && nfc_wake_delay > 0 && new_state != current_nfc_wake_state)
{
ALOGD("%s: ioctl, old state=%d, insert delay for %d ms", __func__, current_nfc_wake_state, nfc_wake_delay);
setWriteDelay(nfc_wake_delay);
}
current_nfc_wake_state = new_state;
}
}
}
}
}
/*****************************************************************************
**
** Function setReadPacketSize
**
** Description
** This function sets the packetSize to the driver.
** this enables faster read operation of NCI/HCI responses
**
** Input Parameters:
** len number of bytes to read per operation.
**
** Output Parameter:
** None.
**
** Returns:
** None.
**
*****************************************************************************/
void setReadPacketSize(int len)
{
int ret;
ALOGD("%s: ioctl, len=%d", __func__, len);
ret = ioctl(linux_cb.sock, BCMNFC_READ_FULL_PACKET, len);
}
UDRV_API BOOLEAN USERIAL_IsClosed()
{
return (linux_cb.sock == -1) ? TRUE : FALSE;
}
UDRV_API void USERIAL_PowerupDevice(tUSERIAL_PORT port)
{
int ret = -1;
unsigned long num = 0;
unsigned int resetSuccess = 0;
unsigned int numTries = 0;
unsigned char spi_negotiation[64];
int delay = gPowerOnDelay;
ALOGD("%s: enter", __FUNCTION__);
if ( GetNumValue ( NAME_READ_MULTI_PACKETS, &num, sizeof ( num ) ) )
bcmi2cnfc_read_multi_packets = num;
if (bcmi2cnfc_read_multi_packets > 0)
ioctl(linux_cb.sock, BCMNFC_READ_MULTI_PACKETS, bcmi2cnfc_read_multi_packets);
while (!resetSuccess && numTries < NUM_RESET_ATTEMPTS) {
if (numTries++ > 0) {
ALOGW("BCM2079x: retrying reset, attempt %d/%d", numTries, NUM_RESET_ATTEMPTS);
}
if (linux_cb.sock_power_control > 0)
{
current_nfc_wake_state = NFC_WAKE_ASSERTED_ON_POR;
ioctl(linux_cb.sock_power_control, BCMNFC_WAKE_CTL, NFC_WAKE_ASSERTED_ON_POR);
ioctl(linux_cb.sock_power_control, BCMNFC_POWER_CTL, 0);
GKI_delay(10);
ret = ioctl(linux_cb.sock_power_control, BCMNFC_POWER_CTL, 1);
}
ret = GetStrValue ( NAME_SPI_NEGOTIATION, (char*)spi_negotiation, sizeof ( spi_negotiation ) );
if (ret > 0 && spi_negotiation[0] > 0 && spi_negotiation[0] < sizeof ( spi_negotiation ) - 1)
{
int len = spi_negotiation[0];
/* Wake control is not available: Start SPI negotiation*/
USERIAL_Write(port, &spi_negotiation[1], len);
USERIAL_Read(port, spi_nego_res, sizeof ( spi_nego_res ));
}
if ( GetNumValue ( NAME_CLIENT_ADDRESS, &num, sizeof ( num ) ) )
bcmi2cnfc_client_addr = num & 0xFF;
if (bcmi2cnfc_client_addr != 0 &&
0x07 < bcmi2cnfc_client_addr &&
bcmi2cnfc_client_addr < 0x78)
{
/* Delay needed after turning on chip */
GKI_delay(delay);
ALOGD( "Change client address to %x\n", bcmi2cnfc_client_addr);
ret = change_client_addr(bcmi2cnfc_client_addr);
if (!ret) {
resetSuccess = 1;
linux_cb.client_device_address = bcmi2cnfc_client_addr;
/* Delay long enough for address change */
/* MACO xxx this needs to be at least 200 ms for BCM2079x B3 */
delay = 200;
}
} else {
resetSuccess = 1;
}
}
if (!resetSuccess) {
ALOGE("BCM2079x: failed to initialize NFC controller");
}
GKI_delay(delay);
ALOGD("%s: exit", __FUNCTION__);
}
#define DEFAULT_CLIENT_ADDRESS 0x77
#define ALIAS_CLIENT_ADDRESS 0x79
static int change_client_addr(int addr)
{
int ret;
int i;
char addr_data[] = {
0xFA, 0xF2, 0x00, 0x00, 0x00, 0x38, 0x00, 0x00, 0x00, 0x2A
};
int size = sizeof(addr_data) - 1;
addr_data[5] = addr & 0xFF;
/* set the checksum */
ret = 0;
for (i = 1; i < size; ++i)
ret += addr_data[i];
addr_data[size] = (ret & 0xFF);
ALOGD( "change_client_addr() change addr from 0x%x to 0x%x\n", DEFAULT_CLIENT_ADDRESS, addr);
/* ignore the return code from IOCTL */
/* always revert back to the default client address */
ioctl(linux_cb.sock, BCMNFC_SET_CLIENT_ADDR, DEFAULT_CLIENT_ADDRESS);
/* Send address change command (skipping first byte) */
ret = TEMP_FAILURE_RETRY(write(linux_cb.sock, &addr_data[1], size));
/* If it fails, it is likely a B3 we are talking to */
if (ret != size) {
ALOGD( "change_client_addr() change addr to 0x%x by setting BSP address to 0x%x\n", addr, ALIAS_CLIENT_ADDRESS);
/* legacy kernel */
/* MACO xxx commented out code below only works with new kernel driver,
* but Mako/Manta ship with old one */
ret = ioctl(linux_cb.sock, BCMNFC_CHANGE_ADDR, addr);
return ret;
/*
ret = ioctl(linux_cb.sock, BCMNFC_SET_CLIENT_ADDR, ALIAS_CLIENT_ADDRESS);
size++;
ret = write(linux_cb.sock, addr_data, size);
*/
}
if (ret == size) {
ALOGD( "change_client_addr() set client address 0x%x to client driver\n", addr);
ret = ioctl(linux_cb.sock, BCMNFC_SET_CLIENT_ADDR, addr);
}
else {
ret = -EIO;
}
return ret;
}