X-Git-Url: https://scm.lunaixsky.com/lunaix-os.git/blobdiff_plain/8328d66ad5de53d630db5b32a155404181733843..7c7b5f05d39b7739d990f71256a2267ec67a6913:/lunaix-os/kernel/peripheral/ps2kbd.c diff --git a/lunaix-os/kernel/peripheral/ps2kbd.c b/lunaix-os/kernel/peripheral/ps2kbd.c index df6ffc1..8ba1b91 100644 --- a/lunaix-os/kernel/peripheral/ps2kbd.c +++ b/lunaix-os/kernel/peripheral/ps2kbd.c @@ -1,21 +1,21 @@ -#include -#include #include -#include #include +#include #include #include #include -#include -#include +#include +#include + #include -#include +#include +#include #define PS2_DEV_CMD_MAX_ATTEMPTS 5 -LOG_MODULE("PS2KBD"); +LOG_MODULE("i8042"); static struct ps2_cmd_queue cmd_q; static struct ps2_kbd_state kbd_state; @@ -85,8 +85,8 @@ static struct input_device* kbd_idev; void intr_ps2_kbd_handler(const isr_param* param); -static uint8_t -ps2_issue_cmd_wretry(char cmd, uint16_t arg); +static u8_t +ps2_issue_cmd_wretry(char cmd, u16_t arg); void ps2_device_post_cmd(char cmd, char arg) @@ -122,30 +122,37 @@ ps2_kbd_init() kbd_idev = input_add_device("i8042-kbd"); - acpi_context* acpi_ctx = acpi_get_context(); - if (acpi_ctx->fadt.header.rev > 1) { - /* - * 只有当前ACPI版本大于1时,我们才使用FADT的IAPC_BOOT_ARCH去判断8042是否存在。 - * 这是一个坑,在ACPI v1中,这个字段是reserved!而这及至ACPI v2才出现。 - * 需要注意:Bochs 和 QEMU 使用的是ACPI v1,而非 v2 - * (virtualbox好像是v4) - * - * (2022/6/29) - * QEMU在7.0.0版本中,修复了FADT::IAPC_BOOT无法正确提供关于i8042的信息的bug - * https://wiki.qemu.org/ChangeLog/7.0#ACPI_.2F_SMBIOS - * - * 请看Bochs的bios源码(QEMU的BIOS其实是照抄bochs的,所以也是一个德行。。): - * https://bochs.sourceforge.io/cgi-bin/lxr/source/bios/rombios32.c#L1314 - */ - if (!(acpi_ctx->fadt.boot_arch & IAPC_ARCH_8042)) { - kprintf(KERROR "i8042: not found\n"); - // FUTURE: Some alternative fallback on this? Check PCI bus for USB - // controller instead? - return; - } - } else { - kprintf(KWARN "i8042: outdated FADT used, assuming exists.\n"); - } + /* FIXME This require systematical rework! */ + // acpi_context* acpi_ctx = acpi_get_context(); + // if (acpi_ctx->fadt.header.rev > 1) { + // /* + // * + // 只有当前ACPI版本大于1时,我们才使用FADT的IAPC_BOOT_ARCH去判断8042是否存在。 + // * 这是一个坑,在ACPI v1中,这个字段是reserved!而这及至ACPI + // v2才出现。 + // * 需要注意:Bochs 和 QEMU 使用的是ACPI v1,而非 v2 + // * (virtualbox好像是v4) + // * + // * (2022/6/29) + // * + // QEMU在7.0.0版本中,修复了FADT::IAPC_BOOT无法正确提供关于i8042的信息的bug + // * https://wiki.qemu.org/ChangeLog/7.0#ACPI_.2F_SMBIOS + // * + // * + // 请看Bochs的bios源码(QEMU的BIOS其实是照抄bochs的,所以也是一个德行。。): + // * + // https://bochs.sourceforge.io/cgi-bin/lxr/source/bios/rombios32.c#L1314 + // */ + // if (!(acpi_ctx->fadt.boot_arch & IAPC_ARCH_8042)) { + // kprintf(KERROR "not found\n"); + // // FUTURE: Some alternative fallback on this? Check PCI bus for + // USB + // // controller instead? + // return; + // } + // } else { + // kprintf(KWARN "outdated FADT used, assuming exists.\n"); + // } char result; @@ -156,7 +163,7 @@ ps2_kbd_init() ps2_post_cmd(PS2_PORT_CTRL_CMDREG, PS2_CMD_PORT2_DISABLE, PS2_NO_ARG); // 2、清空控制器缓冲区 - io_inb(PS2_PORT_ENC_DATA); + port_rdbyte(PS2_PORT_ENC_DATA); // 3、屏蔽所有PS/2设备(端口1&2)IRQ,并且禁用键盘键码转换功能 result = ps2_issue_cmd(PS2_CMD_READ_CFG, PS2_NO_ARG); @@ -166,14 +173,14 @@ ps2_kbd_init() // 4、控制器自检 result = ps2_issue_cmd_wretry(PS2_CMD_SELFTEST, PS2_NO_ARG); if (result != PS2_RESULT_TEST_OK) { - kprintf(KWARN "Controller self-test failed. (%x)\n", result); + kprintf(KWARN "controller self-test failed. (%x)\n", result); // goto done; } // 5、设备自检(端口1自检,通常是我们的键盘) result = ps2_issue_cmd_wretry(PS2_CMD_SELFTEST_PORT1, PS2_NO_ARG); if (result != 0) { - kprintf(KERROR "Interface test on port 1 failed. (%x)\n", result); + kprintf(KERROR "interface test on port 1 failed. (%x)\n", result); // goto done; } @@ -188,9 +195,6 @@ ps2_kbd_init() // 至此,PS/2控制器和设备已完成初始化,可以正常使用。 - // 将我们的键盘驱动挂载到第204号中断上(已由IOAPIC映射至IRQ#1), - intr_subscribe(PC_KBD_IV, intr_ps2_kbd_handler); - // 搞一个计时器,将我们的 ps2_process_cmd // 挂上去。每隔5毫秒执行排在队头的命令。 // 为什么只执行队头的命令,而不是全部的命令? @@ -207,10 +211,8 @@ ps2_kbd_init() * * 所以,保险的方法是:在初始化后才去设置ioapic,这样一来我们就能有一个稳定的IRQ#1以放心使用。 */ - uint8_t irq_kbd = ioapic_get_irq(acpi_ctx, PC_AT_IRQ_KBD); - ioapic_redirect(irq_kbd, PC_KBD_IV, 0, IOAPIC_DELMOD_FIXED); + isrm_bindirq(PC_AT_IRQ_KBD, intr_ps2_kbd_handler); -done: cpu_enable_interrupt(); } @@ -234,7 +236,7 @@ ps2_process_cmd(void* arg) // 处理队列排头的指令 struct ps2_cmd* pending_cmd = &cmd_q.cmd_queue[cmd_q.queue_ptr]; - char result; + u8_t result; int attempts = 0; // 尝试将命令发送至PS/2键盘(通过PS/2控制器) @@ -254,7 +256,7 @@ ps2_process_cmd(void* arg) } void -kbd_buffer_key_event(kbd_keycode_t key, uint8_t scancode, kbd_kstate_t state) +kbd_buffer_key_event(kbd_keycode_t key, u8_t scancode, kbd_kstate_t state) { /* forgive me on these ugly bit-level tricks, @@ -302,14 +304,14 @@ intr_ps2_kbd_handler(const isr_param* param) { // This is important! Don't believe me? try comment it out and run on Bochs! - // while (!(io_inb(PS2_PORT_CTRL_STATUS) & PS2_STATUS_OFULL)) + // while (!(port_rdbyte(PS2_PORT_CTRL_STATUS) & PS2_STATUS_OFULL)) // ; // I know you are tempting to move this chunk after the keyboard state // check. But DO NOT. This chunk is in right place and right order. Moving // it at your own risk This is to ensure we've cleared the output buffer // everytime, so it won't pile up across irqs. - uint8_t scancode = io_inb(PS2_PORT_ENC_DATA); + u8_t scancode = port_rdbyte(PS2_PORT_ENC_DATA); kbd_keycode_t key; /* @@ -406,60 +408,60 @@ intr_ps2_kbd_handler(const isr_param* param) } } -static uint8_t -ps2_issue_cmd(char cmd, uint16_t arg) +static u8_t +ps2_issue_cmd(char cmd, u16_t arg) { ps2_post_cmd(PS2_PORT_CTRL_CMDREG, cmd, arg); // 等待PS/2控制器返回。通过轮询(polling)状态寄存器的 bit 0 // 如置位,则表明返回代码此时就在 0x60 IO口上等待读取。 - while (!(io_inb(PS2_PORT_CTRL_STATUS) & PS2_STATUS_OFULL)) + while (!(port_rdbyte(PS2_PORT_CTRL_STATUS) & PS2_STATUS_OFULL)) ; - return io_inb(PS2_PORT_ENC_CMDREG); + return port_rdbyte(PS2_PORT_ENC_CMDREG); } -static uint8_t -ps2_issue_cmd_wretry(char cmd, uint16_t arg) +static u8_t +ps2_issue_cmd_wretry(char cmd, u16_t arg) { - uint8_t r, c = 0; + u8_t r, c = 0; while ((r = ps2_issue_cmd(cmd, arg)) == PS2_RESULT_NAK && c < 5) { c++; } if (c >= 5) { - kprintf(KWARN "Max attempt reached.\n"); + kprintf(KWARN "max attempt reached.\n"); } return r; } static void -ps2_post_cmd(uint8_t port, char cmd, uint16_t arg) +ps2_post_cmd(u8_t port, char cmd, u16_t arg) { // 等待PS/2输入缓冲区清空,这样我们才可以写入命令 - while (io_inb(PS2_PORT_CTRL_STATUS) & PS2_STATUS_IFULL) + while (port_rdbyte(PS2_PORT_CTRL_STATUS) & PS2_STATUS_IFULL) ; - io_outb(port, cmd); - io_delay(PS2_DELAY); + port_wrbyte(port, cmd); + port_delay(PS2_DELAY); if (!(arg & PS2_NO_ARG)) { // 所有参数一律通过0x60传入。 - while (io_inb(PS2_PORT_CTRL_STATUS) & PS2_STATUS_IFULL) + while (port_rdbyte(PS2_PORT_CTRL_STATUS) & PS2_STATUS_IFULL) ; - io_outb(PS2_PORT_ENC_CMDREG, (uint8_t)(arg & 0x00ff)); - io_delay(PS2_DELAY); + port_wrbyte(PS2_PORT_ENC_CMDREG, (u8_t)(arg & 0x00ff)); + port_delay(PS2_DELAY); } } -static uint8_t -ps2_issue_dev_cmd(char cmd, uint16_t arg) +static u8_t +ps2_issue_dev_cmd(char cmd, u16_t arg) { ps2_post_cmd(PS2_PORT_ENC_CMDREG, cmd, arg); // 等待PS/2控制器返回。通过轮询(polling)状态寄存器的 bit 0 // 如置位,则表明返回代码此时就在 0x60 IO口上等待读取。 - while (!(io_inb(PS2_PORT_CTRL_STATUS) & PS2_STATUS_OFULL)) + while (!(port_rdbyte(PS2_PORT_CTRL_STATUS) & PS2_STATUS_OFULL)) ; - return io_inb(PS2_PORT_ENC_CMDREG); + return port_rdbyte(PS2_PORT_ENC_CMDREG); } \ No newline at end of file