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Rev 4296 Rev 4420
Line 99... Line 99...
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    ((type *) (sgcn_buffer_begin + (offset)))
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    ((type *) (sgcn_buffer_begin + (offset)))
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100
 
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/** Returns a pointer to the console buffer header. */
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/** Returns a pointer to the console buffer header. */
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#define SGCN_BUFFER_HEADER  (SGCN_BUFFER(sgcn_buffer_header_t, 0))
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#define SGCN_BUFFER_HEADER  (SGCN_BUFFER(sgcn_buffer_header_t, 0))
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/** defined in drivers/kbd.c */
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extern kbd_type_t kbd_type;
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/** starting address of SRAM, will be set by the init_sram_begin function */
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/** starting address of SRAM, will be set by the init_sram_begin function */
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static uintptr_t sram_begin;
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static uintptr_t sram_begin;
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106
 
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/**
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/**
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 * starting address of the SGCN buffer, will be set by the
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 * starting address of the SGCN buffer, will be set by the
Line 135... Line 132...
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/** SGCN output device operations */
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/** SGCN output device operations */
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static outdev_operations_t sgcnout_ops = {
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static outdev_operations_t sgcnout_ops = {
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    .write = sgcn_putchar
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    .write = sgcn_putchar
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};
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};
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136
 
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/** SGCN input device operations */
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static indev_operations_t sgcnin_ops = {
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    .poll = NULL
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};
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static indev_t sgcnin;      /**< SGCN input device. */
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static outdev_t sgcnout;    /**< SGCN output device. */
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static outdev_t sgcnout;    /**< SGCN output device. */
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138
 
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/**
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/**
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 * Set some sysinfo values (SRAM address and SRAM size).
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 * Set some sysinfo values (SRAM address and SRAM size).
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 */
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 */
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/**
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/**
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 * Grabs the input for kernel.
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 * Grabs the input for kernel.
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 */
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 */
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void sgcn_grab(void)
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void sgcn_grab(void)
290
{
281
{
291
    kbd_disabled = true;
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    kbd_disabled = false;
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}
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}
293
 
284
 
294
/**
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/**
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 * Releases the input so that userspace can use it.
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 * Releases the input so that userspace can use it.
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 */
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 */
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/**
293
/**
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 * Function regularly called by the keyboard polling thread. Finds out whether
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 * Function regularly called by the keyboard polling thread. Finds out whether
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 * there are some unread characters in the input queue. If so, it picks them up
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 * there are some unread characters in the input queue. If so, it picks them up
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 * and sends them to the upper layers of HelenOS.
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 * and sends them to the upper layers of HelenOS.
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 */
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 */
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static void sgcn_poll()
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static void sgcn_poll(sgcn_instance_t *instance)
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{
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{
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    uint32_t begin = SGCN_BUFFER_HEADER->in_begin;
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    uint32_t begin = SGCN_BUFFER_HEADER->in_begin;
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    uint32_t end = SGCN_BUFFER_HEADER->in_end;
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    uint32_t end = SGCN_BUFFER_HEADER->in_end;
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    uint32_t size = end - begin;
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    uint32_t size = end - begin;
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        SGCN_BUFFER(char, SGCN_BUFFER_HEADER->in_rdptr);
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        SGCN_BUFFER(char, SGCN_BUFFER_HEADER->in_rdptr);
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    volatile uint32_t *in_wrptr_ptr = &(SGCN_BUFFER_HEADER->in_wrptr);
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    volatile uint32_t *in_wrptr_ptr = &(SGCN_BUFFER_HEADER->in_wrptr);
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    volatile uint32_t *in_rdptr_ptr = &(SGCN_BUFFER_HEADER->in_rdptr);
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    volatile uint32_t *in_rdptr_ptr = &(SGCN_BUFFER_HEADER->in_rdptr);
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    while (*in_rdptr_ptr != *in_wrptr_ptr) {
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    while (*in_rdptr_ptr != *in_wrptr_ptr) {
325
       
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        buf_ptr = (volatile char *)
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        buf_ptr = (volatile char *)
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            SGCN_BUFFER(char, SGCN_BUFFER_HEADER->in_rdptr);
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            SGCN_BUFFER(char, SGCN_BUFFER_HEADER->in_rdptr);
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        char c = *buf_ptr;
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        char c = *buf_ptr;
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        *in_rdptr_ptr = (((*in_rdptr_ptr) - begin + 1) % size) + begin;
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        *in_rdptr_ptr = (((*in_rdptr_ptr) - begin + 1) % size) + begin;
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        indev_push_character(&sgcnin, c);  
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        indev_push_character(instance->srlnin, c); 
332
    }  
322
    }  
333
 
323
 
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    spinlock_unlock(&sgcn_input_lock);
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    spinlock_unlock(&sgcn_input_lock);
335
}
325
}
336
 
326
 
337
/**
327
/**
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 * Polling thread function.
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 * Polling thread function.
339
 */
329
 */
340
static void kkbdpoll(void *arg) {
330
static void ksgcnpoll(void *instance) {
341
    while (1) {
331
    while (1) {
342
        if (!silent) {
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        if (!silent)
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            sgcn_poll();
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            sgcn_poll(instance);
344
        }
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        thread_usleep(POLL_INTERVAL);
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        thread_usleep(POLL_INTERVAL);
346
    }
335
    }
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}
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}
348
 
337
 
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/**
338
/**
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 * A public function which initializes input from the Serengeti console.
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 * A public function which initializes input from the Serengeti console.
351
 */
340
 */
352
indev_t *sgcnin_init(void)
341
sgcn_instance_t *sgcnin_init(void)
353
{
342
{
354
    sgcn_buffer_begin_init();
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    sgcn_buffer_begin_init();
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-
 
345
    sgcn_instance_t *instance =
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        malloc(sizeof(sgcn_instance_t), FRAME_ATOMIC);
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-
 
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    if (instance) {
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        instance->srlnin = NULL;
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        instance->thread = thread_create(ksgcnpoll, instance, TASK, 0,
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            "ksgcnpoll", true);
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352
       
-
 
353
        if (!instance->thread) {
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            free(instance);
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            return NULL;
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356
        }
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357
    }
-
 
358
   
-
 
359
    return instance;
-
 
360
}
355
 
361
 
356
    kbd_type = KBD_SGCN;
362
void sgcnin_wire(sgcn_instance_t *instance, indev_t *srlnin)
357
 
363
{
358
    sysinfo_set_item_val("kbd", NULL, true);
364
    ASSERT(instance);
359
    sysinfo_set_item_val("kbd.type", NULL, KBD_SGCN);
365
    ASSERT(srlnin);
360
 
366
 
361
    thread_t *t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll", true);
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362
    if (!t)
-
 
363
        panic("Cannot create kkbdpoll.");
367
    instance->srlnin = srlnin;
364
    thread_ready(t);
368
    thread_ready(instance->thread);
365
   
-
 
366
    indev_initialize("sgcnin", &sgcnin, &sgcnin_ops);
-
 
367
 
369
 
368
    return &sgcnin;
370
    sysinfo_set_item_val("kbd", NULL, true);
369
}
371
}
370
 
372
 
371
/**
373
/**
372
 * A public function which initializes output to the Serengeti console.
374
 * A public function which initializes output to the Serengeti console.
373
 */
375
 */