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F5OEO-WsprryPi
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More cosmetic changes.

master
James Peroulas 2017-02-13 20:30:28 -08:00
rodzic 1822377a54
commit 6e0b8f85d6
2 zmienionych plików z 45 dodań i 75 usunięć
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11
README
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@ -4,7 +4,7 @@ Makes a very simple WSPR beacon from your RasberryPi by connecting GPIO
port to Antenna (and LPF), operates on LF, MF, HF and VHF bands from
0 to 250 MHz.
It is now compatible with both the original Raspberry Pi and the Raspberry Pi 2.
Compatible with the original Raspberry Pi and the Raspberry Pi 2/3.
******
Installation / update:
@ -36,7 +36,8 @@ Usage: (WSPR --help output):
-p --ppm ppm
Known PPM correction to 19.2MHz RPi nominal crystal frequency.
-s --self-calibration
Call ntp_adjtime() before every transmission to obtain the PPM error of the xtal.
Call ntp_adjtime() before every transmission to obtain the PPM error
of the xtal.
-r --repeat
Repeatedly, and in order, transmit on all the specified freqs.
-x --terminate <n>
@ -59,7 +60,7 @@ Usage: (WSPR --help output):
<B>-15 indicates the WSPR-15 region of band <B>.
Transmission gaps can be created by specifying a TX frequency of 0
Note that 'callsign', 'locator', and 'tx_power_dBm' are simply used to fill
in the appropriate fields of the WSPR message. Normally, tx_power_dBm should
be 10, representing the signal power coming out of the Pi. Set this value
@ -171,7 +172,7 @@ Example usage:
sudo ./wspr --self-calibration N9NNN EM10 33 20m
Transmit a WSPR transmission slightly off-center on 30m every 10 minutes for
a total of 7 transmissions, and using a fixed PPM correction value. sudo
a total of 7 transmissions, and using a fixed PPM correction value.
sudo ./wspr --repeat --terminate 7 --ppm 43.17 N9NNN EM10 33 10140210 0 0 0 0
Transmit repeatedly on 40m, use NTP based frequency offset calibration,
@ -213,6 +214,8 @@ Credits:
Michael Tatarinov for adding a patch to get PPM info directly from the
kernel.
Retzler András (HA7ILM) added support for the RPi2/3.
[1] PiFM code from
http://www.icrobotics.co.uk/wiki/index.php/Turning_the_Raspberry_Pi_Into_an_FM_Transmitter
[2] Original WSPR Pi transmitter code by Dan:

109
wspr.cpp
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@ -18,7 +18,8 @@ License:
*/
//ha7ilm: added RPi2 support based on a patch to PiFmRds by Cristophe Jacquet and Richard Hirst: http://git.io/vn7O9
// ha7ilm: added RPi2 support based on a patch to PiFmRds by Cristophe
// Jacquet and Richard Hirst: http://git.io/vn7O9
#include <stdio.h>
#include <string.h>
@ -89,21 +90,20 @@ volatile unsigned *allof7e = NULL;
// GPIO setup macros. Always use INP_GPIO(x) before using OUT_GPIO(x) or SET_GPIO_ALT(x,y)
#define INP_GPIO(g) *(gpio+((g)/10)) &= ~(7<<(((g)%10)*3))
#define OUT_GPIO(g) *(gpio+((g)/10)) |= (1<<(((g)%10)*3))
#define SET_GPIO_ALT(g,a) *(gpio+(((g)/10))) |= (((a)<=3?(a)+4:(a)==4?3:2)<<(((g)%10)*3))
//#define OUT_GPIO(g) *(gpio+((g)/10)) |= (1<<(((g)%10)*3))
//#define SET_GPIO_ALT(g,a) *(gpio+(((g)/10))) |= (((a)<=3?(a)+4:(a)==4?3:2)<<(((g)%10)*3))
#define GPIO_SET *(gpio+7) // sets bits which are 1 ignores bits which are 0
#define GPIO_CLR *(gpio+10) // clears bits which are 1 ignores bits which are 0
#define GPIO_GET *(gpio+13) // sets bits which are 1 ignores bits which are 0
//#define GPIO_SET *(gpio+7) // sets bits which are 1 ignores bits which are 0
//#define GPIO_CLR *(gpio+10) // clears bits which are 1 ignores bits which are 0
//#define GPIO_GET *(gpio+13) // sets bits which are 1 ignores bits which are 0
#define ACCESS(base) *(volatile int*)((long int)allof7e+base-0x7e000000)
#define SETBIT(base, bit) ACCESS(base) |= 1<<bit
#define CLRBIT(base, bit) ACCESS(base) &= ~(1<<bit)
#define GPIO_VIRT_BASE (BCM2708_PERI_BASE + 0x200000) /* GPIO controller */
#define DMA_VIRT_BASE (BCM2708_PERI_BASE + 0x7000)
#define GPIO_VIRT_BASE (BCM2708_PERI_BASE + 0x200000) /* GPIO controller */
#define DMA_VIRT_BASE (BCM2708_PERI_BASE + 0x7000)
//it was GPFSEL0 before:
#define GPIO_PHYS_BASE (0x7E200000)
#define CM_GP0CTL (0x7e101070)
#define CM_GP0DIV (0x7e101074)
@ -112,9 +112,7 @@ volatile unsigned *allof7e = NULL;
#define DMA_PHYS_BASE (0x7E007000)
#define PWM_PHYS_BASE (0x7e20C000) /* PWM controller */
#define BUS_TO_PHYS(x) ((x)&~0xC0000000)
typedef enum {WSPR,TONE} mode_type;
@ -158,52 +156,15 @@ struct PageInfo {
void* v; // virtual address
};
//struct PageInfo constPage;
//struct PageInfo instrPage;
//struct PageInfo instrs[1024];
static struct {
int handle; /* From mbox_open() */
unsigned mem_ref; /* From mem_alloc() */
unsigned bus_addr; /* From mem_lock() */
unsigned char *virt_addr; /* From mapmem() */ //ha7ilm: originally uint8_t
int handle; /* From mbox_open() */
unsigned mem_ref; /* From mem_alloc() */
unsigned bus_addr; /* From mem_lock() */
unsigned char *virt_addr; /* From mapmem() */ //ha7ilm: originally uint8_t
unsigned pool_size;
unsigned pool_cnt;
} mbox;
#define BUS_TO_PHYS(x) ((x)&~0xC0000000)
#if 0
// Get the physical address of a page of virtual memory
void getRealMemPage(void** vAddr, void** pAddr) {
//void* a = (void*)valloc(4096); //ha7ilm: allocates aligned memory
//((int*)a)[0] = 1; // use page to force allocation. //ha7ilm: just writes something into it to force allocation flag
//mlock(a, 4096); // lock into ram.
//*vAddr = a; // yay - we know the virtual address
//unsigned long long frameinfo;
//int fp = open("/proc/self/pagemap", 'r');
//lseek(fp, ((long int)a)/4096*8, SEEK_SET);
//read(fp, &frameinfo, sizeof(frameinfo));
//*pAddr = (void*)((long int)(frameinfo*4096));
//ha7ilm: should open mbox first!
mbox.mem_ref=mem_alloc(mbox.handle, 4096, 4096, MEM_FLAG);
mbox.bus_addr = mem_lock(mbox.handle, mbox.mem_ref);
mbox.virt_addr = (unsigned char*)mapmem(BUS_TO_PHYS(mbox.bus_addr), 4096);
printf("mbox bus_addr=%x virt_addr=%x mem_ref=%x\n",mbox.bus_addr,(unsigned)mbox.virt_addr,mbox.mem_ref);
*pAddr = (void*)mbox.bus_addr;
*vAddr = mbox.virt_addr;
}
void freeRealMemPage(void* vAddr) {
//munlock(vAddr, 4096); // unlock ram.
//free(vAddr);
}
#endif
void allocMemPool(unsigned numpages)
{
mbox.mem_ref=mem_alloc(mbox.handle, 4096*numpages, 4096, MEM_FLAG);
@ -214,15 +175,17 @@ void allocMemPool(unsigned numpages)
//printf("allocMemoryPool bus_addr=%x virt_addr=%x mem_ref=%x\n",mbox.bus_addr,(unsigned)mbox.virt_addr,mbox.mem_ref);
}
int getRealMemPageFromPool(void ** vAddr, void **pAddr)
void getRealMemPageFromPool(void ** vAddr, void **pAddr)
{
if(mbox.pool_cnt>=mbox.pool_size) return 1;
if (mbox.pool_cnt>=mbox.pool_size) {
cerr << "Error: unable to allocated more pages!" << endl;
ABORT(-1);
}
unsigned offset = mbox.pool_cnt*4096;
*vAddr = (void*)(((unsigned)mbox.virt_addr) + offset);
*pAddr = (void*)(((unsigned)mbox.bus_addr) + offset);
//printf("getRealMemoryPageFromPool bus_addr=%x virt_addr=%x\n", (unsigned)*pAddr,(unsigned)*vAddr);
mbox.pool_cnt++;
return 0;
}
void deallocMemPool()
@ -338,7 +301,7 @@ void txSym(
}
void unSetupDMA(){
printf("exiting\n");
//cout << "Exiting!" << endl;
struct DMAregs* DMA0 = (struct DMAregs*)&(ACCESS(DMA_PHYS_BASE));
DMA0->CS =1<<31; // reset dma controller
txoff();
@ -506,16 +469,16 @@ void setup_io(
) {
/* open /dev/mem */
if ((mem_fd = open("/dev/mem", O_RDWR|O_SYNC) ) < 0) {
printf("can't open /dev/mem \n");
exit (-1);
cerr << "Error: can't open /dev/mem" << endl;
ABORT (-1);
}
/* mmap GPIO */
// Allocate MAP block
if ((gpio_mem = (char *)malloc(BLOCK_SIZE + (PAGE_SIZE-1))) == NULL) {
printf("allocation error \n");
exit (-1);
cerr << "Error: allocation error" << endl;
ABORT (-1);
}
// Make sure pointer is on 4K boundary
@ -533,14 +496,13 @@ void setup_io(
);
if ((long)gpio_map < 0) {
printf("mmap error %ld\n", (long int)gpio_map);
exit (-1);
cerr << "mmap error" << (long int)gpio_map << endl;
ABORT (-1);
}
// Always use volatile pointer!
gpio = (volatile unsigned *)gpio_map;
}
void setup_gpios(
@ -1028,13 +990,18 @@ void timeval_print(struct timeval *tv) {
printf("%s.%03ld", buffer, (tv->tv_usec+500)/1000);
}
int open_mbox()
void open_mbox()
{
unlink(DEVICE_FILE_NAME);
if (mknod(DEVICE_FILE_NAME, S_IFCHR|0600, makedev(100, 0)) < 0) { printf("Failed to create mailbox device.\n"); return 1; }
if (mknod(DEVICE_FILE_NAME, S_IFCHR|0600, makedev(100, 0)) < 0) {
cerr << "Failed to create mailbox device." << endl;
ABORT(-1);
}
mbox.handle = mbox_open();
if (mbox.handle < 0) { printf("Failed to open mailbox.\n"); return 1; }
return 0;
if (mbox.handle < 0) {
cerr << "Failed to open mailbox." << endl;
ABORT(-1);
}
}
int main(const int argc, char * const argv[]) {
@ -1091,7 +1058,7 @@ int main(const int argc, char * const argv[]) {
cerr << "Error: mmap error!" << endl;
ABORT(-1);
}
if (open_mbox()) return 1;
open_mbox();
txon();
struct PageInfo constPage;
struct PageInfo instrPage;
@ -1155,7 +1122,7 @@ int main(const int argc, char * const argv[]) {
printf("\n");
*/
printf("Ready to transmit (setup complete)...\n");
cout << "Ready to transmit (setup complete)..." << endl;
int band=0;
int n_tx=0;
for(;;) {
@ -1184,7 +1151,7 @@ int main(const int argc, char * const argv[]) {
if (no_delay) {
cout << " Transmitting immediately (not waiting for WSPR window)" << endl;
} else {
printf(" Waiting for next WSPR transmission window...\n");
cout << " Waiting for next WSPR transmission window..." << endl;
wait_every((wspr15) ? 15 : 2);
}