mirror of
git://projects.qi-hardware.com/ben-wpan.git
synced 2024-11-04 23:49:42 +02:00
tools: give the driver control over CLKM (for ATmega32U2 boards)
- include/atrf.h (atrf_set_clkm), lib/atrf.c (atrf_set_clkm): set or disable CLKM - lib/driver.h (atrf_set_clkm_generic), lib/atrf.c (atrf_set_clkm_generic): generic function to set CLKM without restrictions - lib/driver.h (struct atrf_driver): added driver operation "set_clkm" to set CLKM - lib/atusb.c (atusb_set_clkm, atusb_driver): restrict CLKM on ATmega32U2 boards - atrf-txrx/atrf-txrx.c (init_txrx): use atrf_set_clkm to set CLKM - atrf-txrx/atrf-txrx.c (init_txrx, main): pass CLKM frequency in MHz instead of code point
This commit is contained in:
Werner Almesberger
parent
e73ca5fcd5
commit
b0c15b7e7c
@ -83,7 +83,7 @@ static volatile int run = 1;
|
||||
* >0 output 2^(clkm-1) MHz signal
|
||||
*/
|
||||
|
||||
static struct atrf_dsc *init_txrx(int trim, unsigned clkm)
|
||||
static struct atrf_dsc *init_txrx(int trim, unsigned mhz)
|
||||
{
|
||||
struct atrf_dsc *dsc;
|
||||
|
||||
@ -101,11 +101,11 @@ static struct atrf_dsc *init_txrx(int trim, unsigned clkm)
|
||||
atrf_reg_write(dsc, REG_XOSC_CTRL, XTAL_MODE_EXT << XTAL_MODE_SHIFT);
|
||||
#endif
|
||||
|
||||
if (!clkm)
|
||||
atrf_reg_write(dsc, REG_TRX_CTRL_0, 0); /* disable CLKM */
|
||||
else
|
||||
atrf_reg_write(dsc, REG_TRX_CTRL_0,
|
||||
(PAD_IO_8mA << PAD_IO_CLKM_SHIFT) | clkm);
|
||||
if (!atrf_set_clkm(dsc, mhz))
|
||||
if (mhz) {
|
||||
atrf_close(dsc);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* We want to see all interrupts, not only the ones we're expecting. */
|
||||
atrf_reg_write(dsc, REG_IRQ_MASK, 0xff);
|
||||
@ -616,7 +616,7 @@ int main(int argc, char *const *argv)
|
||||
double pause_s = 0;
|
||||
char *end;
|
||||
int c, freq;
|
||||
unsigned tmp, clkm = 0;
|
||||
unsigned clkm = 0;
|
||||
int status = 0;
|
||||
const char *pcap_file = NULL;
|
||||
struct atrf_dsc *dsc;
|
||||
@ -668,14 +668,10 @@ int main(int argc, char *const *argv)
|
||||
usage(*argv);
|
||||
break;
|
||||
case 'C':
|
||||
tmp = strtol(optarg, &end, 0);
|
||||
clkm = strtol(optarg, &end, 0);
|
||||
if (*end)
|
||||
usage(*argv);
|
||||
if (!tmp)
|
||||
usage(*argv);
|
||||
for (clkm = 1; !(tmp & 1); tmp >>= 1)
|
||||
clkm++;
|
||||
if (tmp != 1 || clkm > 5)
|
||||
if (!clkm)
|
||||
usage(*argv);
|
||||
break;
|
||||
case 'E':
|
||||
|
||||
@ -1,8 +1,8 @@
|
||||
/*
|
||||
* include/atrf.h - ATRF access functions library
|
||||
*
|
||||
* Written 2010 by Werner Almesberger
|
||||
* Copyright 2010 Werner Almesberger
|
||||
* Written 2010-2011 by Werner Almesberger
|
||||
* Copyright 2010-2011 Werner Almesberger
|
||||
*
|
||||
* 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
|
||||
@ -40,6 +40,7 @@ void atrf_reset_rf(struct atrf_dsc *dsc);
|
||||
enum atrf_chip_id atrf_identify(struct atrf_dsc *dsc);
|
||||
|
||||
int atrf_test_mode(struct atrf_dsc *dsc);
|
||||
int atrf_set_clkm(struct atrf_dsc *dsc, int mhz);
|
||||
|
||||
void atrf_reg_write(struct atrf_dsc *dsc, uint8_t reg, uint8_t value);
|
||||
uint8_t atrf_reg_read(struct atrf_dsc *dsc, uint8_t reg);
|
||||
|
||||
@ -149,6 +149,52 @@ int atrf_test_mode(struct atrf_dsc *dsc)
|
||||
}
|
||||
|
||||
|
||||
int atrf_set_clkm_generic(
|
||||
void (*reg_write)(void *dsc, uint8_t reg, uint8_t value),
|
||||
void *handle, int mhz)
|
||||
{
|
||||
uint8_t clkm;
|
||||
|
||||
if (!mhz) {
|
||||
reg_write(handle, REG_TRX_CTRL_0, 0); /* disable CLKM */
|
||||
return 1;
|
||||
}
|
||||
switch (mhz) {
|
||||
case 1:
|
||||
clkm = CLKM_CTRL_1MHz;
|
||||
break;
|
||||
case 2:
|
||||
clkm = CLKM_CTRL_2MHz;
|
||||
break;
|
||||
case 4:
|
||||
clkm = CLKM_CTRL_4MHz;
|
||||
break;
|
||||
case 8:
|
||||
clkm = CLKM_CTRL_8MHz;
|
||||
break;
|
||||
case 16:
|
||||
clkm = CLKM_CTRL_16MHz;
|
||||
break;
|
||||
default:
|
||||
fprintf(stderr, "unsupported CLKM frequency %d MHz\n", mhz);
|
||||
return 0;
|
||||
}
|
||||
reg_write(handle, REG_TRX_CTRL_0,
|
||||
(PAD_IO_8mA << PAD_IO_CLKM_SHIFT) | clkm);
|
||||
return 1;
|
||||
}
|
||||
|
||||
|
||||
int atrf_set_clkm(struct atrf_dsc *dsc, int mhz)
|
||||
{
|
||||
if (dsc->driver->set_clkm)
|
||||
return dsc->driver->set_clkm(dsc->handle, mhz);
|
||||
else
|
||||
return atrf_set_clkm_generic(dsc->driver->reg_write,
|
||||
dsc->handle, mhz);
|
||||
}
|
||||
|
||||
|
||||
void atrf_reg_write(struct atrf_dsc *dsc, uint8_t reg, uint8_t value)
|
||||
{
|
||||
dsc->driver->reg_write(dsc->handle, reg, value);
|
||||
|
||||
@ -1,8 +1,8 @@
|
||||
/*
|
||||
* lib/atusb.c - ATUSB access functions library (USB version)
|
||||
*
|
||||
* Written 2010 by Werner Almesberger
|
||||
* Copyright 2010 Werner Almesberger
|
||||
* Written 2010-2011 by Werner Almesberger
|
||||
* Copyright 2010-2011 Werner Almesberger
|
||||
*
|
||||
* 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
|
||||
@ -227,6 +227,48 @@ static int atusb_interrupt(void *dsc)
|
||||
}
|
||||
|
||||
|
||||
/* ----- CLKM handling ----------------------------------------------------- */
|
||||
|
||||
|
||||
/*
|
||||
* ATmega32U2-based boards don't allow disabling CLKM, so we keep it at 8 MHz.
|
||||
* We could accommodate a choice between 8 MHz and 16 MHz, but that's for
|
||||
* later.
|
||||
*/
|
||||
|
||||
static int atusb_set_clkm(void *dsc, int mhz)
|
||||
{
|
||||
usb_dev_handle *dev = dsc;
|
||||
uint8_t ids[3];
|
||||
int res;
|
||||
|
||||
if (error)
|
||||
return 0;
|
||||
res = usb_control_msg(dev, FROM_DEV, ATUSB_ID, 0, 0,
|
||||
(void *) ids, 3, 1000);
|
||||
if (res < 0) {
|
||||
fprintf(stderr, "ATUSB_ID: %s\n", usb_strerror());
|
||||
error = 1;
|
||||
return 0;
|
||||
}
|
||||
switch (ids[2]) {
|
||||
case HW_TYPE_100813:
|
||||
case HW_TYPE_101216:
|
||||
break;
|
||||
case HW_TYPE_110131:
|
||||
if (mhz == 0 || mhz == 8)
|
||||
return 1;
|
||||
fprintf(stderr, "this board only supports CLKM = 8 MHz\n");
|
||||
return 0;
|
||||
default:
|
||||
fprintf(stderr,
|
||||
"atusb_set_clkm: unknown hardware type 0x%02x\n", ids[2]);
|
||||
return 0;
|
||||
}
|
||||
return atrf_set_clkm_generic(atusb_reg_write, dsc, mhz);
|
||||
}
|
||||
|
||||
|
||||
/* ----- driver interface -------------------------------------------------- */
|
||||
|
||||
|
||||
@ -239,6 +281,7 @@ struct atrf_driver atusb_driver = {
|
||||
.reset = atusb_reset,
|
||||
.reset_rf = atusb_reset_rf,
|
||||
.test_mode = atusb_test_mode,
|
||||
.set_clkm = atusb_set_clkm,
|
||||
.reg_write = atusb_reg_write,
|
||||
.reg_read = atusb_reg_read,
|
||||
.buf_write = atusb_buf_write,
|
||||
|
||||
@ -1,8 +1,8 @@
|
||||
/*
|
||||
* lib/driver.h - ATRF driver API
|
||||
*
|
||||
* Written 2010 by Werner Almesberger
|
||||
* Copyright 2010 Werner Almesberger
|
||||
* Written 2010-2011 by Werner Almesberger
|
||||
* Copyright 2010-2011 Werner Almesberger
|
||||
*
|
||||
* 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
|
||||
@ -26,6 +26,7 @@ struct atrf_driver {
|
||||
void (*reset)(void *dsc);
|
||||
void (*reset_rf)(void *dsc);
|
||||
void (*test_mode)(void *dsc);
|
||||
int (*set_clkm)(void *dsc, int mhz);
|
||||
void (*reg_write)(void *dsc, uint8_t reg, uint8_t value);
|
||||
uint8_t (*reg_read)(void *dsc, uint8_t reg);
|
||||
void (*buf_write)(void *dsc, const void *buf, int size);
|
||||
@ -33,4 +34,9 @@ struct atrf_driver {
|
||||
int (*interrupt)(void *dsc);
|
||||
};
|
||||
|
||||
|
||||
int atrf_set_clkm_generic(
|
||||
void (*reg_write)(void *dsc, uint8_t reg, uint8_t value),
|
||||
void *handle, int mhz);
|
||||
|
||||
#endif /* !DRIVER_H */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user