diff options
Diffstat (limited to 'int15ps2.h')
| -rw-r--r-- | int15ps2.h | 54 |
1 files changed, 41 insertions, 13 deletions
@@ -22,6 +22,7 @@ #include <stdbool.h> #include <stdint.h> +#include "utils.h" /** Standard PS/2 mouse IRQ. At least on VirtualBox. */ #define PS2_MOUSE_IRQ 12 @@ -49,19 +50,27 @@ enum ps2m_status { enum ps2m_packet_size { PS2M_PACKET_SIZE_STREAMING = 1, - PS2M_PACKET_SIZE_PLAIN = 3, + PS2M_PACKET_SIZE_STD = 3, PS2M_PACKET_SIZE_EXT = 4, }; enum ps2m_device_ids { /** Standard PS/2 mouse, 2 buttons. */ - PS2M_DEVICE_ID_PLAIN = 0, + PS2M_DEVICE_ID_STD = 0, /** IntelliMouse PS/2, with wheel. */ - PS2M_DEVICE_ID_IMPS2 = 3, + PS2M_DEVICE_ID_IMPS2 = 3, /** IntelliMouse Explorer, wheel and 5 buttons. */ - PS2M_DEVICE_ID_IMEX = 4, + PS2M_DEVICE_ID_IMEX = 4, /** IntelliMouse Explorer, wheel, 5 buttons, and horizontal scrolling. */ - PS2M_DEVICE_ID_IMEX_HORZ = 5 + PS2M_DEVICE_ID_IMEX_HORZ = 5 +}; + +/** Additional bits set in 4th byte of IMEX protocol. */ +enum ps2m_imex_ext_byte_bits { + PS2M_IMEX_BUTTON_4 = 1 << 4, + PS2M_IMEX_BUTTON_5 = 1 << 5, + PS2M_IMEX_HORIZONTAL_SCROLL = 1 << 6, + PS2M_IMEX_VERTICAL_SCROLL = 1 << 7 }; /** Valid PS/2 mouse resolutions in DPI. */ @@ -200,7 +209,7 @@ static ps2m_err ps2m_enable(bool enable); __value [ah] \ __modify [ax] -/** Sends the magic sequence to switch the mouse to the IMPS2 protocol. */ +/** Sends the magic sequence to switch the mouse to the IntelliMouse protocol. */ static void ps2m_send_imps2_sequence(void) { ps2m_set_sample_rate(PS2M_SAMPLE_RATE_200); @@ -208,8 +217,28 @@ static void ps2m_send_imps2_sequence(void) ps2m_set_sample_rate(PS2M_SAMPLE_RATE_80); } -/** Detects whether we have a IMPS2 mouse with wheel support. */ -static bool ps2m_detect_wheel(void) +/** Sends the magic sequence to switch the mouse to the IntelliMouse Explorer protocol. */ +static void ps2m_send_imex_sequence(void) +{ + ps2m_set_sample_rate(PS2M_SAMPLE_RATE_200); + ps2m_set_sample_rate(PS2M_SAMPLE_RATE_200); + ps2m_set_sample_rate(PS2M_SAMPLE_RATE_80); +} + +/** Sends the magic sequence to switch the mouse to the IntelliMouse Explorer + * with horz. wheel protocol. Note: unclear if mouse changes device_id after this. */ +static void ps2m_send_imex_horz_sequence(void) +{ + ps2m_set_sample_rate(PS2M_SAMPLE_RATE_200); + ps2m_set_sample_rate(PS2M_SAMPLE_RATE_80); + ps2m_set_sample_rate(PS2M_SAMPLE_RATE_40); +} + +/** Detects whether we have a IMPS2 mouse with wheel support. + * + * @return true if we have at least imps/2 with 1 wheel support. + */ +static bool ps2m_detect_imps2(void) { int err; uint8_t device_id; @@ -220,14 +249,14 @@ static bool ps2m_detect_wheel(void) return false; } - if (device_id == PS2M_DEVICE_ID_IMPS2) { + if (device_id == PS2M_DEVICE_ID_IMPS2 + || device_id == PS2M_DEVICE_ID_IMEX + || device_id == PS2M_DEVICE_ID_IMEX_HORZ) { // Already wheel return true; } - if (device_id != PS2M_DEVICE_ID_PLAIN) { - // TODO: Likely we have to accept more device IDs here - dprintf("Unknown initial mouse device_id=0x%x\n", device_id); + if (device_id != PS2M_DEVICE_ID_STD) { return false; } @@ -236,7 +265,6 @@ static bool ps2m_detect_wheel(void) // Now check if the device id has changed err = ps2m_get_device_id(&device_id); - return err == 0 && device_id == PS2M_DEVICE_ID_IMPS2; } |