src/target/firmware/include/layer1/sync.h

   1 #ifndef _L1_SYNC_H
   2 #define _L1_SYNC_H
   3
   4 #include <osmocore/linuxlist.h>
   5 #include <osmocore/gsm_utils.h>
   6 #include <layer1/tdma_sched.h>
   7 #include <l1a_l23_interface.h>
   8
   9 struct l1_cell_info {
  10         uint16_t        arfcn;
  11         uint32_t        bsic;
  12         uint32_t        fn_offset;
  13         uint32_t        time_alignment;
  14 };
  15
  16 enum l1s_chan {
  17         L1S_CHAN_MAIN,
  18         L1S_CHAN_SACCH,
  19         _NUM_L1S_CHAN
  20 };
  21
  22
  23 struct l1s_state {
  24         struct gsm_time current_time;   /* current time */
  25         struct gsm_time next_time;      /* time at next TMDMA irq */
  26
  27         struct l1_cell_info serving_cell;
  28
  29         struct tdma_scheduler tdma_sched;
  30
  31         uint32_t        tpu_offset;
  32
  33         int             task;
  34
  35         /* Transmit queues of pending packets for main DCCH and ACCH */
  36         struct llist_head tx_queue[_NUM_L1S_CHAN];
  37
  38         /* bit-mask of multi-frame tasks that are currently active */
  39         uint32_t        mf_tasks;
  40
  41         struct {
  42                 uint8_t         ra;
  43         } rach;
  44 };
  45
  46 extern struct l1s_state l1s;
  47
  48 enum l1_sig_num {
  49         L1_SIG_PM,      /* Power Measurement */
  50         L1_SIG_NB,      /* Normal Burst */
  51 };
  52
  53 struct l1s_meas_hdr {
  54         uint16_t snr;           /* signal/noise ratio */
  55         int16_t toa_qbit;       /* time of arrival (qbits) */
  56         int16_t pm_dbm8;        /* power level in dbm/8 */
  57         int16_t freq_err;       /* Frequency error in Hz */
  58 };
  59
  60 struct l1_signal {
  61         uint16_t signum;
  62         uint16_t arfcn;
  63         union {
  64                 struct {
  65                         int16_t dbm8[2];
  66                 } pm;
  67                 struct {
  68                         struct l1s_meas_hdr meas[4];
  69                         uint16_t crc;
  70                         uint16_t fire;
  71                         uint16_t num_biterr;
  72                         uint8_t frame[24];
  73                 } nb;
  74         };
  75 };
  76
  77 typedef void (*l1s_cb_t)(struct l1_signal *sig);
  78
  79 void l1s_set_handler(l1s_cb_t handler);
  80
  81 int16_t l1s_snr_int(uint16_t snr);
  82 uint16_t l1s_snr_fract(uint16_t snr);
  83
  84 void l1s_dsp_abort(void);
  85
  86 void l1s_fb_test(uint8_t base_fn, uint8_t fb_mode);
  87 void l1s_sb_test(uint8_t base_fn);
  88 void l1s_pm_test(uint8_t base_fn, uint16_t arfcn);
  89 void l1s_nb_test(uint8_t base_fn);
  90
  91 void l1s_init(void);
  92
  93 /* init.c */
  94 void layer1_init(void);
  95
  96 #endif /* _L1_SYNC_H */