| 36,13 → 36,15 |
|---|
| |
| #include <as.h> |
| #include <ddi.h> |
| #include <ipc/ipc.h> |
| #include <async.h> |
| #include <kbd.h> |
| #include <kbd_port.h> |
| #include <sysinfo.h> |
| #include <stdio.h> |
| #include <thread.h> |
| |
| #define POLL_INTERVAL 10000 |
| |
| /** |
| * SGCN buffer header. It is placed at the very beginning of the SGCN |
| * buffer. |
| 87,16 → 89,16 |
|---|
| */ |
| static uintptr_t sram_buffer_offset; |
| |
| static void sgcn_irq_handler(ipc_callid_t iid, ipc_call_t *call); |
| /* polling thread */ |
| static void *sgcn_thread_impl(void *arg); |
| |
| |
| /** |
| * Initializes the SGCN driver. |
| * Maps the physical memory (SRAM) and registers the interrupt. |
| * Maps the physical memory (SRAM) and creates the polling thread. |
| */ |
| int kbd_port_init(void) |
| { |
| async_set_interrupt_received(sgcn_irq_handler); |
| sram_virt_addr = (uintptr_t) as_get_mappable_page(sysinfo_value("sram.area.size")); |
| if (physmem_map((void *) sysinfo_value("sram.address.physical"), |
| (void *) sram_virt_addr, sysinfo_value("sram.area.size") / PAGE_SIZE, |
| 106,8 → 108,15 |
|---|
| } |
| |
| sram_buffer_offset = sysinfo_value("sram.buffer.offset"); |
| ipc_register_irq(sysinfo_value("kbd.inr"), sysinfo_value("kbd.devno"), |
| 0, (void *) 0); |
| |
| thread_id_t tid; |
| int rc; |
| |
| rc = thread_create(sgcn_thread_impl, NULL, "kbd_poll", &tid); |
| if (rc != 0) { |
| return rc; |
| } |
| |
| return 0; |
| } |
| |
| 115,7 → 124,7 |
|---|
| * Handler of the "key pressed" event. Reads codes of all the pressed keys from |
| * the buffer. |
| */ |
| static void sgcn_irq_handler(ipc_callid_t iid, ipc_call_t *call) |
| static void sgcn_key_pressed(void) |
| { |
| char c; |
| |
| 137,5 → 146,19 |
|---|
| } |
| } |
| |
| /** |
| * Thread to poll SGCN for keypresses. |
| */ |
| static void *sgcn_thread_impl(void *arg) |
| { |
| (void) arg; |
| |
| while (1) { |
| sgcn_key_pressed(); |
| usleep(POLL_INTERVAL); |
| } |
| } |
| |
| |
| /** @} |
| */ |