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-rw-r--r--tools/hciattach.c128
1 files changed, 58 insertions, 70 deletions
diff --git a/tools/hciattach.c b/tools/hciattach.c
index 15a9d367..7b8c20a0 100644
--- a/tools/hciattach.c
+++ b/tools/hciattach.c
@@ -51,6 +51,7 @@ struct uart_t {
int m_id;
int p_id;
int proto;
+ int start_speed;
int speed;
int flags;
int (*init) (int fd, struct uart_t *u, struct termios *ti);
@@ -79,6 +80,8 @@ static int uart_speed(int s)
return B921600;
case 1000000:
return B1000000;
+ case 1152000:
+ return B1152000;
default:
return B57600;
}
@@ -149,12 +152,6 @@ static int ericsson(int fd, struct uart_t *u, struct termios *ti)
struct timespec tm = {0, 50000};
char cmd[10];
- /* Switch to default Ericsson baudrate*/
- if (set_speed(fd, ti, 57600) < 0) {
- perror("Can't set default baud rate");
- return -1;
- }
-
cmd[0] = HCI_COMMAND_PKT;
cmd[1] = 0x09;
cmd[2] = 0xfc;
@@ -199,12 +196,6 @@ static int digi(int fd, struct uart_t *u, struct termios *ti)
struct timespec tm = {0, 50000};
char cmd[10];
- /* Switch to default Digi baudrate*/
- if (set_speed(fd, ti, 9600) < 0) {
- perror("Can't set default baud rate");
- return -1;
- }
-
/* DigiAnswer set baud rate command */
cmd[0] = HCI_COMMAND_PKT;
cmd[1] = 0x07;
@@ -242,12 +233,6 @@ static int texas(int fd, struct uart_t *u, struct termios *ti)
memset(resp,'\0', 100);
- /* Switch to default Texas baudrate*/
- if (set_speed(fd, ti, 115200) < 0) {
- perror("Can't set default baud rate");
- return -1;
- }
-
/* It is possible to get software version with manufacturer specific
HCI command HCI_VS_TI_Version_Number. But the only thing you get more
is if this is point-to-point or point-to-multipoint module */
@@ -484,12 +469,6 @@ static int csr(int fd, struct uart_t *u, struct termios *ti)
static int csr_seq = 0; /* Sequence number of command */
int divisor;
- /* Switch to default CSR baudrate */
- if (set_speed(fd, ti, 115200) < 0) {
- perror("Can't set default baud rate");
- return -1;
- }
-
/* It seems that if we set the CSR UART speed straight away, it
* won't work, the CSR UART gets into a state where we can't talk
* to it anymore.
@@ -596,6 +575,19 @@ static int csr(int fd, struct uart_t *u, struct termios *ti)
}
#endif
+ if (u->speed > 1500000) {
+ fprintf(stderr, "Speed %d too high. Remaining at %d baud\n",
+ u->speed, u->start_speed);
+ u->speed = u->start_speed;
+ } else if (u->speed != 57600 && uart_speed(u->speed) == B57600) {
+ /* Unknown speed. Why oh why can't we just pass an int to the kernel? */
+ fprintf(stderr, "Speed %d unrecognised. Remaining at %d baud\n",
+ u->speed, u->start_speed);
+ u->speed = u->start_speed;
+ }
+ if (u->speed == u->start_speed)
+ return 0;
+
/* Now, create the command that will set the UART speed */
/* CSR BCC header */
cmd[5] = 0x02; /* type = SET-REQ */
@@ -604,30 +596,8 @@ static int csr(int fd, struct uart_t *u, struct termios *ti)
cmd[10] = (csr_seq >> 8) & 0xFF;/* - msB */
csr_seq++;
- switch (u->speed) {
- case 9600:
- divisor = 0x0027;
- break;
- /* Various speeds ommited */
- case 57600:
- divisor = 0x00EC;
- break;
- case 115200:
- divisor = 0x01D8;
- break;
- /* For Brainbox Pcmcia cards */
- case 460800:
- divisor = 0x075F;
- break;
- case 921600:
- divisor = 0x0EBF;
- break;
- default:
- /* Safe default */
- divisor = 0x01D8;
- u->speed = 115200;
- break;
- }
+ divisor = (u->speed*64+7812)/15625;
+
/* No parity, one stop bit -> divisor |= 0x0000; */
cmd[15] = (divisor) & 0xFF; /* divider */
cmd[16] = (divisor >> 8) & 0xFF; /* - msB */
@@ -665,12 +635,6 @@ static int swave(int fd, struct uart_t *u, struct termios *ti)
char cmd[10], rsp[100];
int r;
- /* Switch to default Silicon Wave baudrate*/
- if (set_speed(fd, ti, 115200) < 0) {
- perror("Can't set default baud rate");
- return -1;
- }
-
// Silicon Wave set baud rate command
// see HCI Vendor Specific Interface from Silicon Wave
// first send a "param access set" command to set the
@@ -766,33 +730,33 @@ static int swave(int fd, struct uart_t *u, struct termios *ti)
}
struct uart_t uart[] = {
- { "any", 0x0000, 0x0000, HCI_UART_H4, 115200, FLOW_CTL, NULL },
- { "ericsson", 0x0000, 0x0000, HCI_UART_H4, 115200, FLOW_CTL, ericsson },
- { "digi", 0x0000, 0x0000, HCI_UART_H4, 115200, FLOW_CTL, digi },
- { "texas", 0x0000, 0x0000, HCI_UART_H4, 115200, FLOW_CTL, texas},
+ { "any", 0x0000, 0x0000, HCI_UART_H4, 115200, 115200, FLOW_CTL, NULL },
+ { "ericsson", 0x0000, 0x0000, HCI_UART_H4, 57600, 115200, FLOW_CTL, ericsson },
+ { "digi", 0x0000, 0x0000, HCI_UART_H4, 9600, 115200, FLOW_CTL, digi },
+ { "texas", 0x0000, 0x0000, HCI_UART_H4, 115200, 115200, FLOW_CTL, texas},
- { "bcsp", 0x0000, 0x0000, HCI_UART_BCSP, 115200, 0, bcsp },
+ { "bcsp", 0x0000, 0x0000, HCI_UART_BCSP, 115200, 115200, 0, bcsp },
/* Xircom PCMCIA cards: Credit Card Adapter and Real Port Adapter */
- { "xircom", 0x0105, 0x080a, HCI_UART_H4, 115200, FLOW_CTL, NULL },
+ { "xircom", 0x0105, 0x080a, HCI_UART_H4, 115200, 115200, FLOW_CTL, NULL },
/* CSR Casira serial adapter or BrainBoxes serial dongle (BL642) */
- { "csr", 0x0000, 0x0000, HCI_UART_H4, 115200, FLOW_CTL, csr },
+ { "csr", 0x0000, 0x0000, HCI_UART_H4, 115200, 115200, FLOW_CTL, csr },
/* BrainBoxes PCMCIA card (BL620) */
- { "bboxes", 0x0160, 0x0002, HCI_UART_H4, 460800, FLOW_CTL, csr },
+ { "bboxes", 0x0160, 0x0002, HCI_UART_H4, 115200, 460800, FLOW_CTL, csr },
/* Silicon Wave kits */
- { "swave", 0x0000, 0x0000, HCI_UART_H4, 115200, FLOW_CTL, swave },
+ { "swave", 0x0000, 0x0000, HCI_UART_H4, 115200, 115200, FLOW_CTL, swave },
/* Sphinx Electronics PICO Card */
- { "picocard", 0x025e, 0x1000, HCI_UART_H4, 115200, FLOW_CTL, NULL },
+ { "picocard", 0x025e, 0x1000, HCI_UART_H4, 115200, 115200, FLOW_CTL, NULL },
/* Inventel BlueBird Module */
- { "inventel", 0x0000, 0x0000, HCI_UART_H4, 115200, FLOW_CTL, NULL },
+ { "inventel", 0x0000, 0x0000, HCI_UART_H4, 115200, 115200, FLOW_CTL, NULL },
/* COM One Platinium Bluetooth PC Card */
- { "comone", 0xffff, 0x0101, HCI_UART_BCSP, 115200, 0, bcsp },
+ { "comone", 0xffff, 0x0101, HCI_UART_BCSP, 115200, 115200, 0, bcsp },
{ NULL, 0 }
};
@@ -818,7 +782,7 @@ struct uart_t * get_by_type(char *type)
}
/* Initialize UART driver */
-int init_uart(char *dev, struct uart_t *u)
+int init_uart(char *dev, struct uart_t *u, int send_break)
{
struct termios ti;
int fd, i;
@@ -849,8 +813,17 @@ int init_uart(char *dev, struct uart_t *u)
return -1;
}
+ /* Set initial baudrate */
+ if (set_speed(fd, &ti, u->start_speed) < 0) {
+ perror("Can't set initial baud rate");
+ return -1;
+ }
+
tcflush(fd, TCIOFLUSH);
+ if (send_break)
+ tcsendbreak(fd, 0);
+
if (u->init && u->init(fd, u, &ti) < 0)
return -1;
@@ -881,7 +854,7 @@ static void usage(void)
{
printf("hciattach - HCI UART driver initialization utility\n");
printf("Usage:\n");
- printf("\thciattach [-n] [-p] [-t timeout] <tty> <type | id> [speed] [flow]\n");
+ printf("\thciattach [-n] [-p] [-b] [-t timeout] [-s initial_speed] <tty> <type | id> [speed] [flow]\n");
printf("\thciattach -l\n");
}
@@ -893,6 +866,8 @@ int main(int argc, char *argv[])
struct uart_t *u = NULL;
int detach, printpid, opt, i, n;
int to = 5;
+ int start_speed = 0;
+ int send_break = 0;
pid_t pid;
struct sigaction sa;
char dev[20];
@@ -900,8 +875,12 @@ int main(int argc, char *argv[])
detach = 1;
printpid = 0;
- while ((opt=getopt(argc, argv, "npt:l")) != EOF) {
+ while ((opt=getopt(argc, argv, "bnpt:s:l")) != EOF) {
switch(opt) {
+ case 'b':
+ send_break = 1;
+ break;
+
case 'n':
detach = 0;
break;
@@ -914,6 +893,10 @@ int main(int argc, char *argv[])
to = atoi(optarg);
break;
+ case 's':
+ start_speed = atoi(optarg);
+ break;
+
case 'l':
for (i = 0; uart[i].type; i++) {
printf("%-10s0x%04x,0x%04x\n", uart[i].type,
@@ -980,6 +963,11 @@ int main(int argc, char *argv[])
exit(1);
}
+ /* If user specified a starting speed, use that instead of
+ the hardware's default */
+ if (start_speed)
+ u->start_speed = start_speed;
+
memset(&sa, 0, sizeof(sa));
sa.sa_flags = SA_NOCLDSTOP;
sa.sa_handler = sig_alarm;
@@ -988,7 +976,7 @@ int main(int argc, char *argv[])
/* 5 seconds should be enough for initialization */
alarm(to);
- n = init_uart(dev, u);
+ n = init_uart(dev, u, send_break);
if (n < 0) {
perror("Can't initialize device");
exit(1);
generated by cgit (git 2.34.1) at 2025-11-03 23:50:16 +0000