From 35958c8c6b600482f68fef08ac26547b5655e987 Mon Sep 17 00:00:00 2001
From: Anton Kling <anton@kling.gg>
Date: Wed, 7 Feb 2024 11:36:21 +0100
Subject: A lot of small changes

---
 kernel/drivers/pit.c     | 15 +++++++++++----
 kernel/drivers/rtl8139.c |  6 +++++-
 2 files changed, 16 insertions(+), 5 deletions(-)

(limited to 'kernel/drivers')

diff --git a/kernel/drivers/pit.c b/kernel/drivers/pit.c
index 567ac2d..8f9c35c 100644
--- a/kernel/drivers/pit.c
+++ b/kernel/drivers/pit.c
@@ -41,17 +41,24 @@ void set_pit_count(u16 hertz) {
   outb(PIT_IO_CHANNEL_0, (divisor & 0xFF00) >> 8);
 }
 
-__attribute__((interrupt)) void
-int_clock(__attribute__((unused)) struct interrupt_frame *frame) {
+__attribute__((interrupt)) void int_clock(registers_t *regs) {
+  process_t *p = get_current_task();
+  if (p) {
+    // FIXME: For some reason eflags is the esp? I have read the
+    // manual multilpe times and still can't figure out why.
+    if (regs->eflags <= 0x90000000 && regs->eflags) {
+      p->useresp = regs->eflags;
+    }
+  }
   outb(0x20, 0x20);
   pit_counter++;
   if (pit_counter >= hertz / 1000) {
     pit_counter = 0;
     clock_num_ms_ticks++;
   }
-  switch_task();
+  switch_task(1);
 }
 
 void pit_install(void) {
-  install_handler(int_clock, INT_32_INTERRUPT_GATE(0x0), 0x20);
+  install_handler(int_clock, INT_32_INTERRUPT_GATE(0x3), 0x20);
 }
diff --git a/kernel/drivers/rtl8139.c b/kernel/drivers/rtl8139.c
index dd81533..b07ccef 100644
--- a/kernel/drivers/rtl8139.c
+++ b/kernel/drivers/rtl8139.c
@@ -3,6 +3,7 @@
 #include <cpu/io.h>
 #include <drivers/pci.h>
 #include <drivers/rtl8139.h>
+#include <ipc.h>
 #include <mmu.h>
 #include <network/arp.h>
 #include <network/ethernet.h>
@@ -104,6 +105,9 @@ __attribute__((interrupt)) void rtl8139_handler(void *regs) {
 }
 
 void rtl8139_send_data(u8 *data, u16 data_size) {
+  kprintf("ipc_write\n");
+  ipc_write(0, data, data_size);
+  /*
   const struct PCI_DEVICE *device = &rtl8139;
   // FIXME: It should block or fail if there is too little space for the
   // buffer
@@ -120,7 +124,7 @@ void rtl8139_send_data(u8 *data, u16 data_size) {
   outl(device->gen.base_mem_io + 0x20 + send_buffers_loop * 4,
        (u32)virtual_to_physical(send_buffers[send_buffers_loop], NULL));
   outl(device->gen.base_mem_io + 0x10 + send_buffers_loop * 4, data_size);
-  send_buffers_loop += 1;
+  send_buffers_loop += 1;*/
 }
 
 void get_mac_address(u8 mac[6]) {
-- 
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