X-Git-Url: https://oss.titaniummirror.com/gitweb?a=blobdiff_plain;f=src%2Fexamples%2Fcpmfg.c;h=f4c54014aaff214b11b5e1f9714e46c39ff08ab9;hb=adcc360e576188af96b2dd22be2bed75e151d769;hp=832e75b356e6f9f86805f9ca9aa1ca480777b15c;hpb=0727cf5b4bba23c38882a1a7c2cb0641b3119848;p=cp210x.git diff --git a/src/examples/cpmfg.c b/src/examples/cpmfg.c index 832e75b..f4c5401 100644 --- a/src/examples/cpmfg.c +++ b/src/examples/cpmfg.c @@ -5,68 +5,22 @@ * device. */ +#include #include #include #include +#include #include #include #include -#include +#include +#include "../cp210x.h" #define VID 0x10c4 #define PID 0xea60 -/* CP2103 ioctls */ -#define IOCTL_GPIOGET 0x8000 /* Get gpio bits */ -#define IOCTL_GPIOSET 0x8001 /* Set gpio bits */ -#define IOCTL_GPIOBIC 0x8002 /* Clear specific gpio bit(s) */ -#define IOCTL_GPIOBIS 0x8003 /* Set specific gpio bit(s) */ - -/* CP210x ioctls principally used during initial device configuration */ -#define IOCTL_DEVICERESET 0x8004 /* Reset the cp210x */ -#define IOCTL_PORTCONFGET 0x8005 /* Get port configuration */ -#define IOCTL_PORTCONFSET 0x8006 /* Set port configuration */ -#define IOCTL_SETVID 0x8007 /* Set vendor id */ -#define IOCTL_SETPID 0x8008 /* Set product id */ -#define IOCTL_SETMFG 0x8009 /* Set manufacturer string */ -#define IOCTL_SETPRODUCT 0x800a /* Set product string */ -#define IOCTL_SETSERIAL 0x800b /* Set serial number string */ -#define IOCTL_SETDEVVER 0x800c /* set device version id */ -/* FIXME: where is IOCTL_SETMFG? */ - -/* CP2103 GPIO */ -#define GPIO_0 0x01 -#define GPIO_1 0x02 -#define GPIO_2 0x04 -#define GPIO_3 0x08 -#define GPIO_MASK (GPIO_0|GPIO_1|GPIO_2|GPIO_3) - -/* Port config definitions */ -typedef struct { - uint16_t mode; /* Push-pull = 1, Open-drain = 0 */ - uint16_t lowPower; - uint16_t latch; /* Logic high = 1, Logic low = 0 */ -} cp2101_port_state_t; - -typedef struct { - cp2101_port_state_t reset; - cp2101_port_state_t suspend; - uint8_t enhancedFxn; -} cp2101_port_config_t; - -#define PORT_CONFIG_LEN 13 /* Because sizeof() will pad to full words */ - -/* Used to pass variable sized buffers between user and kernel space (ioctls) */ -typedef struct { - char* buf; - size_t len; -} cp210x_buffer_t; - -void exit(int); - int cpConnect(char* device) { - int ret, ioval; int fd = open(device, O_RDWR); if (fd < 0) { fprintf(stderr, "cannot open %s\n", device); @@ -85,7 +39,7 @@ void cpDisconnect(int fd) void cpSetStr(int fd, unsigned int ioctlno, char* string, size_t len) { int ret; - cp210x_buffer_t buf = { buf: string, len: len }; + struct cp210x_buffer buf = { buf: (unsigned char *)string, len: len }; ret = ioctl(fd, ioctlno, &buf); if (ret) { @@ -95,27 +49,34 @@ void cpSetStr(int fd, unsigned int ioctlno, char* string, size_t len) } } -void cpSetLeds(int fd) +void cpSetPortConf(int fd, int nopullups) { int ret; - cp2101_port_config_t config; + struct cp210x_port_config config; /* Read the current port configuration */ - if ((ret = ioctl(fd, IOCTL_PORTCONFGET, &config))) { + if ((ret = ioctl(fd, CP210x_IOCTL_PORTCONFGET, &config))) { fprintf(stderr, "portconfget ioctl failed %d\n", ret); exit(1); } - /* Set the current port configuration; turn on GPIO_0 and GPIO_1 to get - * activity LEDs. GPIO_2 and GPIO_3 are set for 'regular' gpio. + /* This section assumes the device is currently at factory defaults. If + * not, first run 'cpfactory'. The only delta from factory defaults is to + * activate the activity pin functions for GPIOs 0 and 1. Most boards + * require the use of weak pull-ups, including TMI's RWS. + * + * GPIO mapping: + * GPIO_0 -> TX activity, active low + * GPIO_1 -> RX activity, active low + * GPIO_2 -> MSP430 UC_TCK + * GPIO_3 -> MSP430 UC_RST + * */ - config.reset.mode &= ~0x0300; - config.suspend.mode &= ~0x0300; - config.reset.latch |= 0x0300; - config.enhancedFxn |= 0x03; - //config.enhancedFxn &= ~0x10; /* turn off weak pullups */ - config.enhancedFxn |= 0x10; /* turn on weak pullups */ - if ((ret = ioctl(fd, IOCTL_PORTCONFSET, &config))) { + config.enhancedFxn |= 0x13; + if (nopullups) + config.enhancedFxn &= ~0x10; + + if ((ret = ioctl(fd, CP210x_IOCTL_PORTCONFSET, &config))) { fprintf(stderr, "portconfset ioctl failed %d\n", ret); exit(1); } @@ -126,36 +87,53 @@ void cpReset(int fd) int ret; /* Reset the part */ - if ((ret = ioctl(fd, IOCTL_DEVICERESET, 0))) { + if ((ret = ioctl(fd, CP210x_IOCTL_DEVICERESET, 0))) { fprintf(stderr, "device reset ioctl %d\n", ret); exit(1); } } +void usage(char* program) +{ + fprintf(stderr, "usage: %s [--nopullups] \n", + program); +} + int main(int argc, char* argv[]) { /* char newmfg[255]; */ char newprod[255]; char newsn[255]; int fd; + int nopullups = 0; + + if (argc < 5 || argc > 6) { + usage(argv[0]); + exit(1); + } - if (argc != 5) { - fprintf(stderr, "usage: %s \n", argv[0]); - exit(1); + if (argc == 6) { + if (strncmp(argv[1], "--n", 3) == 0) + nopullups = 1; + else { + usage(argv[0]); + exit(1); + } } - /* strcpy(newmfg, argv[2]); - * strcpy(newprod, argv[3]); + /* strcpy(newmfg, argv[nopullups + 2]); + * strcpy(newprod, argv[nopullups + 3]); */ - snprintf(newprod, sizeof(newprod), "%s %s", argv[2], argv[3]); - strcpy(newsn, argv[4]); - fd = cpConnect(argv[1]); + snprintf(newprod, sizeof(newprod), "%s %s", argv[nopullups + 2], + argv[nopullups + 3]); + strcpy(newsn, argv[nopullups + 4]); + fd = cpConnect(argv[nopullups + 1]); /* SiLabs doesn't allow set of mfg string on cp210x. - * cpSetStr(fd, IOCTL_SETMFG, newmfg, strlen(newmfg)); + * cpSetStr(fd, CP210x_IOCTL_SETMFG, newmfg, strlen(newmfg)); */ - cpSetStr(fd, IOCTL_SETPRODUCT, newprod, strlen(newprod)); - cpSetStr(fd, IOCTL_SETSERIAL, newsn, strlen(newsn)); - cpSetLeds(fd); + cpSetStr(fd, CP210x_IOCTL_SETPRODUCT, newprod, strlen(newprod)); + cpSetStr(fd, CP210x_IOCTL_SETSERIAL, newsn, strlen(newsn)); + cpSetPortConf(fd, nopullups); cpReset(fd); cpDisconnect(fd); printf("done\n");