drivers/misc/mediatek/eccci/modem_ut.h

   1 #ifndef __MODEM_UT_H__
   2 #define __MODEM_UT_H__
   3
   4 #include <linux/wakelock.h>
   5 #include <linux/dmapool.h>
   6
   7 #define LOOP_BACK // loop back, or gen Rx data
   8 #ifdef LOOP_BACK
   9 #ifdef CCCI_STATISTIC
  10 #define STATISTIC // statistic data gathering for performance debug
  11 #endif
  12 //#define NO_RX_Q_LOCK // check comment in md_ut_rxq_process
  13 #define NO_RX_Q_LOCK_IN_TX // check comment in md_ut_txq_process
  14 #endif
  15
  16 #define MD_UT_MAJOR 169
  17 #define MAX_QUEUE_LENGTH 32
  18 #define QUEUE_BUDGET 16
  19
  20 typedef enum {
  21         HIF_EX_INIT = 0, // interrupt
  22         HIF_EX_ACK, // AP->MD
  23         HIF_EX_INIT_DONE, // polling
  24         HIF_EX_CLEARQ_DONE, //interrupt
  25         HIF_EX_CLEARQ_ACK, // AP->MD
  26         HIF_EX_ALLQ_RESET, // polling
  27 }HIF_EX_STAGE;
  28
  29 struct md_ut_queue {
  30         DIRECTION dir;
  31         unsigned char index;
  32         struct ccci_modem *modem;
  33
  34         struct list_head req_list;
  35         spinlock_t req_lock;
  36         int budget;
  37         int length;
  38         wait_queue_head_t req_wq;
  39         // now only for Tx, Rx won't wait, just drop
  40         int length_th;
  41 #ifdef STATISTIC
  42         unsigned int process_count; // write or dispatch operation
  43         unsigned int not_complet_count; // have to wait due to list full
  44         unsigned int data_count; // packet size accumulation
  45 #endif
  46 };
  47
  48 struct md_ut_ctrl{
  49         struct md_ut_queue txq[3];
  50         struct md_ut_queue rxq[3];
  51         wait_queue_head_t sched_thread_wq;
  52         unsigned char sched_thread_kick;
  53         atomic_t reset_on_going;
  54         struct wake_lock trm_wake_lock;
  55
  56         struct task_struct *sched_thread;
  57         struct timer_list rx_gen_timer;
  58 #ifdef STATISTIC
  59         struct timer_list statistic_timer;
  60 #endif
  61 };
  62
  63 #define QUEUE_LEN(a) (sizeof(a)/sizeof(struct md_ut_queue))
  64
  65 static void inline md_ut_queue_struct_init(struct md_ut_queue *queue, struct ccci_modem *md,
  66         DIRECTION dir, unsigned char index,
  67         int th, int bg)
  68 {
  69         queue->dir = OUT;
  70         queue->index = index;
  71         queue->modem = md;
  72
  73         INIT_LIST_HEAD(&queue->req_list);
  74         init_waitqueue_head(&queue->req_wq);
  75         spin_lock_init(&queue->req_lock);
  76         queue->length_th = th;
  77         queue->budget = bg;
  78         queue->length = 0;
  79 #ifdef STATISTIC
  80         queue->process_count = 0;
  81         queue->not_complet_count = 0;
  82 #endif
  83 }
  84
  85 #endif //__MODEM_UT_H__