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d5be5374
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Harald Welte
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#include <stdint.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <string.h>
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#include <stdarg.h>
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#include <common.h>
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#include <tuner_e4k.h>
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void logp2(int subsys, unsigned int level, char *file,
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int line, int cont, const char *format, ...)
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{
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va_list ap;
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fprintf(stderr, "%u/%u/%s:%u: ", subsys, level, file, line);
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va_start(ap, format);
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vfprintf(stderr, format, ap);
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va_end(ap);
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}
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static uint8_t regs[0x7f];
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/* stub functions for register read/write */
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int e4k_reg_write(struct e4k_state *e4k, uint8_t reg, uint8_t val)
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{
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printf("REG WRITE: [0x%02x] = 0x%02x\n", reg, val);
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if (reg > ARRAY_SIZE(regs))
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return -ERANGE;
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regs[reg] = val;
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return 0;
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}
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int e4k_reg_read(struct e4k_state *e4k, uint8_t reg)
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{
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if (reg > ARRAY_SIZE(regs))
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return -ERANGE;
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printf("REG READ: [0x%02x] = 0x%02x\n", reg, regs[reg]);
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return regs[reg];
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}
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static struct e4k_state g_e4k;
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#define FOSC 26000000
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static void dump_params(struct e4k_pll_params *p)
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{
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int32_t delta = p->intended_flo - p->flo;
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printf("Flo_int = %u: R=%u, X=%u, Z=%u, Flo = %u, delta=%d\n",
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p->intended_flo, p->r, p->x, p->z, p->flo, delta);
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}
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static void compute_and_dump(uint32_t flo)
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{
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struct e4k_pll_params params;
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int rc;
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memset(¶ms, 0, sizeof(params));
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rc = e4k_compute_pll_params(¶ms, FOSC, flo);
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if (rc < 0) {
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fprintf(stderr, "something went wrong!\n");
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exit(1);
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}
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dump_params(¶ms);
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e4k_tune_params(&g_e4k, ¶ms);
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}
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static const uint32_t test_freqs[] = {
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888000000, 66666666, 425000000
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};
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//1234567890
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int main(int argc, char **argv)
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{
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int i;
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printf("Initializing....\n");
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e4k_init(&g_e4k);
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for (i = 0; i < ARRAY_SIZE(test_freqs); i++) {
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compute_and_dump(test_freqs[i]);
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}
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}
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