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-rw-r--r--src/mouse.c256
1 files changed, 83 insertions, 173 deletions
diff --git a/src/mouse.c b/src/mouse.c
index cb471db..22d0148 100644
--- a/src/mouse.c
+++ b/src/mouse.c
@@ -9,8 +9,7 @@
#include "util.h" // debug_isr
#include "pic.h" // unmask_pic2
#include "bregs.h" // struct bregs
-
-static char panic_msg_keyb_buffer_full[] = "%s: keyboard input buffer full\n";
+#include "ps2port.h" // aux_command
void
mouse_setup()
@@ -24,75 +23,6 @@ mouse_setup()
unmask_pic2(PIC2_IRQ12);
}
-static void
-set_kbd_command_byte(u8 command_byte)
-{
- if (inb(PORT_PS2_STATUS) & 0x02)
- BX_PANIC(panic_msg_keyb_buffer_full, "setkbdcomm");
- outb(0xD4, PORT_PS2_STATUS);
-
- outb(0x60, PORT_PS2_STATUS); // write command byte
- outb(command_byte, PORT_PS2_DATA);
-}
-
-static u8
-inhibit_mouse_int_and_events()
-{
- // Turn off IRQ generation and aux data line
- if (inb(PORT_PS2_STATUS) & 0x02)
- BX_PANIC(panic_msg_keyb_buffer_full,"inhibmouse");
- outb(0x20, PORT_PS2_STATUS); // get command byte
- while ((inb(PORT_PS2_STATUS) & 0x01) != 0x01)
- ;
- u8 prev_command_byte = inb(PORT_PS2_DATA);
- u8 command_byte = prev_command_byte;
- //while ( (inb(PORT_PS2_STATUS) & 0x02) );
- if ( inb(PORT_PS2_STATUS) & 0x02 )
- BX_PANIC(panic_msg_keyb_buffer_full,"inhibmouse");
- command_byte &= 0xfd; // turn off IRQ 12 generation
- command_byte |= 0x20; // disable mouse serial clock line
- outb(0x60, PORT_PS2_STATUS); // write command byte
- outb(command_byte, PORT_PS2_DATA);
- return prev_command_byte;
-}
-
-static void
-enable_mouse_int_and_events()
-{
- // Turn on IRQ generation and aux data line
- if ( inb(PORT_PS2_STATUS) & 0x02 )
- BX_PANIC(panic_msg_keyb_buffer_full,"enabmouse");
- outb(0x20, PORT_PS2_STATUS); // get command byte
- while ((inb(PORT_PS2_STATUS) & 0x01) != 0x01)
- ;
- u8 command_byte = inb(PORT_PS2_DATA);
- //while ( (inb(PORT_PS2_STATUS) & 0x02) );
- if (inb(PORT_PS2_STATUS) & 0x02)
- BX_PANIC(panic_msg_keyb_buffer_full,"enabmouse");
- command_byte |= 0x02; // turn on IRQ 12 generation
- command_byte &= 0xdf; // enable mouse serial clock line
- outb(0x60, PORT_PS2_STATUS); // write command byte
- outb(command_byte, PORT_PS2_DATA);
-}
-
-static void
-send_to_mouse_ctrl(u8 sendbyte)
-{
- // wait for chance to write to ctrl
- if (inb(PORT_PS2_STATUS) & 0x02)
- BX_PANIC(panic_msg_keyb_buffer_full,"sendmouse");
- outb(0xD4, PORT_PS2_STATUS);
- outb(sendbyte, PORT_PS2_DATA);
-}
-
-static void
-get_mouse_data(u8 *data)
-{
- while ((inb(PORT_PS2_STATUS) & 0x21) != 0x21)
- ;
- *data = inb(PORT_PS2_DATA);
-}
-
#define RET_SUCCESS 0x00
#define RET_EINVFUNCTION 0x01
#define RET_EINVINPUT 0x02
@@ -100,39 +30,48 @@ get_mouse_data(u8 *data)
#define RET_ENEEDRESEND 0x04
#define RET_ENOHANDLER 0x05
+static int
+disable_mouse()
+{
+ u8 ps2ctr = GET_EBDA(ps2ctr);
+ ps2ctr |= I8042_CTR_AUXDIS;
+ ps2ctr &= ~I8042_CTR_AUXINT;
+ SET_EBDA(ps2ctr, ps2ctr);
+
+ return aux_command(PSMOUSE_CMD_DISABLE, NULL);
+}
+
// Disable Mouse
static void
mouse_15c20000(struct bregs *regs)
{
- inhibit_mouse_int_and_events(); // disable IRQ12 and packets
- send_to_mouse_ctrl(0xF5); // disable mouse command
- u8 mouse_data1;
- get_mouse_data(&mouse_data1);
- set_code_success(regs);
+ int ret = disable_mouse();
+ if (ret)
+ set_code_fail(regs, RET_ENEEDRESEND);
+ else
+ set_code_success(regs);
}
-#define BX_DEBUG_INT15(args...)
-
// Enable Mouse
static void
mouse_15c20001(struct bregs *regs)
{
u8 mouse_flags_2 = GET_EBDA(mouse_flag2);
if ((mouse_flags_2 & 0x80) == 0) {
- BX_DEBUG_INT15("INT 15h C2 Enable Mouse, no far call handler\n");
set_code_fail(regs, RET_ENOHANDLER);
return;
}
- inhibit_mouse_int_and_events(); // disable IRQ12 and packets
- send_to_mouse_ctrl(0xF4); // enable mouse command
- u8 mouse_data1;
- get_mouse_data(&mouse_data1);
- if (mouse_data1 == 0xFA) {
- enable_mouse_int_and_events(); // turn IRQ12 and packet generation on
+
+ u8 ps2ctr = GET_EBDA(ps2ctr);
+ ps2ctr &= ~I8042_CTR_AUXDIS;
+ ps2ctr |= I8042_CTR_AUXINT;
+ SET_EBDA(ps2ctr, ps2ctr);
+
+ int ret = aux_command(PSMOUSE_CMD_ENABLE, NULL);
+ if (ret)
+ set_code_fail(regs, RET_ENEEDRESEND);
+ else
set_code_success(regs);
- return;
- }
- set_code_fail(regs, RET_ENEEDRESEND);
}
static void
@@ -156,24 +95,14 @@ mouse_15c200(struct bregs *regs)
static void
mouse_15c201(struct bregs *regs)
{
- inhibit_mouse_int_and_events(); // disable IRQ12 and packets
- send_to_mouse_ctrl(0xFF); // reset mouse command
- u8 mouse_data1, mouse_data2, mouse_data3;
- get_mouse_data(&mouse_data3);
- // if no mouse attached, it will return RESEND
- if (mouse_data3 == 0xfe) {
+ u8 param[2];
+ int ret = aux_command(PSMOUSE_CMD_RESET_BAT, param);
+ if (ret) {
set_code_fail(regs, RET_ENEEDRESEND);
return;
}
- if (mouse_data3 != 0xfa)
- BX_PANIC("Mouse reset returned %02x (should be ack)\n"
- , (unsigned)mouse_data3);
- get_mouse_data(&mouse_data1);
- get_mouse_data(&mouse_data2);
- // turn IRQ12 and packet generation on
- enable_mouse_int_and_events();
- regs->bl = mouse_data1;
- regs->bh = mouse_data2;
+ regs->bl = param[0];
+ regs->bh = param[1];
set_code_success(regs);
}
@@ -181,19 +110,17 @@ mouse_15c201(struct bregs *regs)
static void
mouse_15c202(struct bregs *regs)
{
- if (regs->bh >= 7) {
- set_code_fail(regs, RET_EUNSUPPORTED);
+ static u8 sample_rates[7] = {10, 20, 40, 60, 80, 100, 200};
+ if (regs->bh >= ARRAY_SIZE(sample_rates)) {
+ set_code_fail(regs, RET_EINVINPUT);
return;
}
- u8 mouse_data1 = regs->bh * 20;
- if (!mouse_data1)
- mouse_data1 = 10;
- send_to_mouse_ctrl(0xF3); // set sample rate command
- u8 mouse_data2;
- get_mouse_data(&mouse_data2);
- send_to_mouse_ctrl(mouse_data1);
- get_mouse_data(&mouse_data2);
- set_code_success(regs);
+ u8 mouse_data1 = GET_VAR(CS, sample_rates[regs->bh]);
+ int ret = aux_command(PSMOUSE_CMD_SETRATE, &mouse_data1);
+ if (ret)
+ set_code_fail(regs, RET_ENEEDRESEND);
+ else
+ set_code_success(regs);
}
// Set Resolution
@@ -205,38 +132,29 @@ mouse_15c203(struct bregs *regs)
// 1 = 50 dpi, 2 counts per millimeter
// 2 = 100 dpi, 4 counts per millimeter
// 3 = 200 dpi, 8 counts per millimeter
- u8 comm_byte = inhibit_mouse_int_and_events(); // disable IRQ12 and packets
if (regs->bh >= 4) {
- set_code_fail(regs, RET_EUNSUPPORTED);
- goto done;
+ set_code_fail(regs, RET_EINVINPUT);
+ return;
}
- send_to_mouse_ctrl(0xE8); // set resolution command
- u8 mouse_data1;
- get_mouse_data(&mouse_data1);
- if (mouse_data1 != 0xfa)
- BX_PANIC("Mouse status returned %02x (should be ack)\n"
- , (unsigned)mouse_data1);
- send_to_mouse_ctrl(regs->bh);
- get_mouse_data(&mouse_data1);
- if (mouse_data1 != 0xfa)
- BX_PANIC("Mouse status returned %02x (should be ack)\n"
- , (unsigned)mouse_data1);
- set_code_success(regs);
-
-done:
- set_kbd_command_byte(comm_byte); // restore IRQ12 and serial enable
+ u8 param = regs->bh;
+ int ret = aux_command(PSMOUSE_CMD_SETRES, &param);
+ if (ret)
+ set_code_fail(regs, RET_ENEEDRESEND);
+ else
+ set_code_success(regs);
}
// Get Device ID
static void
mouse_15c204(struct bregs *regs)
{
- inhibit_mouse_int_and_events(); // disable IRQ12 and packets
- send_to_mouse_ctrl(0xF2); // get mouse ID command
- u8 mouse_data1, mouse_data2;
- get_mouse_data(&mouse_data1);
- get_mouse_data(&mouse_data2);
- regs->bh = mouse_data2;
+ u8 param[2];
+ int ret = aux_command(PSMOUSE_CMD_GETID, param);
+ if (ret) {
+ set_code_fail(regs, RET_ENEEDRESEND);
+ return;
+ }
+ regs->bh = param[0];
set_code_success(regs);
}
@@ -259,55 +177,44 @@ mouse_15c205(struct bregs *regs)
static void
mouse_15c20600(struct bregs *regs)
{
- u8 comm_byte = inhibit_mouse_int_and_events(); // disable IRQ12 and packets
- send_to_mouse_ctrl(0xE9); // get mouse info command
- u8 mouse_data1, mouse_data2, mouse_data3;
- get_mouse_data(&mouse_data1);
- if (mouse_data1 != 0xfa)
- BX_PANIC("Mouse status returned %02x (should be ack)\n"
- , (unsigned)mouse_data1);
- get_mouse_data(&mouse_data1);
- get_mouse_data(&mouse_data2);
- get_mouse_data(&mouse_data3);
- regs->bl = mouse_data1;
- regs->cl = mouse_data2;
- regs->dl = mouse_data3;
+ u8 param[3];
+ int ret = aux_command(PSMOUSE_CMD_GETINFO, param);
+ if (ret) {
+ set_code_fail(regs, RET_ENEEDRESEND);
+ return;
+ }
+ regs->bl = param[0];
+ regs->cl = param[1];
+ regs->dl = param[2];
set_code_success(regs);
- set_kbd_command_byte(comm_byte); // restore IRQ12 and serial enable
-}
-
-static void
-set_scaling(struct bregs *regs, u8 cmd)
-{
- u8 comm_byte = inhibit_mouse_int_and_events(); // disable IRQ12 and packets
- send_to_mouse_ctrl(0xE6);
- u8 mouse_data1;
- get_mouse_data(&mouse_data1);
- if (mouse_data1 != 0xFA)
- set_code_fail(regs, RET_EUNSUPPORTED);
- else
- set_code_success(regs);
- set_kbd_command_byte(comm_byte); // restore IRQ12 and serial enable
}
// Set Scaling Factor to 1:1
static void
mouse_15c20601(struct bregs *regs)
{
- set_scaling(regs, 0xE6);
+ int ret = aux_command(PSMOUSE_CMD_SETSCALE11, NULL);
+ if (ret)
+ set_code_fail(regs, RET_ENEEDRESEND);
+ else
+ set_code_success(regs);
}
// Set Scaling Factor to 2:1
static void
mouse_15c20602(struct bregs *regs)
{
- set_scaling(regs, 0xE7);
+ int ret = aux_command(PSMOUSE_CMD_SETSCALE21, NULL);
+ if (ret)
+ set_code_fail(regs, RET_ENEEDRESEND);
+ else
+ set_code_success(regs);
}
static void
mouse_15c206XX(struct bregs *regs)
{
- BX_PANIC("INT 15h C2 AL=6, BH=%02x\n", regs->bh);
+ set_code_fail(regs, RET_EINVFUNCTION);
}
// Return Status & Set Scaling Factor...
@@ -327,19 +234,19 @@ static void
mouse_15c207(struct bregs *regs)
{
u32 farptr = (regs->es << 16) | regs->bx;
- SET_EBDA(far_call_pointer, farptr);
u8 mouse_flags_2 = GET_EBDA(mouse_flag2);
if (! farptr) {
/* remove handler */
if ((mouse_flags_2 & 0x80) != 0) {
mouse_flags_2 &= ~0x80;
- inhibit_mouse_int_and_events(); // disable IRQ12 and packets
+ disable_mouse();
}
} else {
/* install handler */
mouse_flags_2 |= 0x80;
}
SET_EBDA(mouse_flag2, mouse_flags_2);
+ SET_EBDA(far_call_pointer, farptr);
set_code_success(regs);
}
@@ -359,6 +266,8 @@ handle_15c2(struct bregs *regs)
return;
}
+ irq_enable();
+
switch (regs->al) {
case 0x00: mouse_15c200(regs); break;
case 0x01: mouse_15c201(regs); break;
@@ -376,9 +285,10 @@ static void
int74_function()
{
u8 v = inb(PORT_PS2_STATUS);
- if ((v & 0x21) != 0x21)
+ if ((v & 0x21) != 0x21) {
+ dprintf(1, "int74 but no mouse data.\n");
return;
-
+ }
v = inb(PORT_PS2_DATA);
u8 mouse_flags_1 = GET_EBDA(mouse_flag1);
generated by cgit v1.1 at 2024-11-18 23:22:52 +0000