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76 lines
1.5 KiB
76 lines
1.5 KiB
#include "usb-base-drv.h"
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#include "ch376.h"
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#include "enumerate.h"
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#include "work-area.h"
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#include <string.h>
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static usb_error usb_host_bus_reset(void) {
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ch_cmd_set_usb_mode(CH_MODE_HOST);
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delay_20ms();
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ch_cmd_set_usb_mode(CH_MODE_HOST_RESET);
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delay_20ms();
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ch_cmd_set_usb_mode(CH_MODE_HOST);
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delay_20ms();
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ch_configure_nak_retry_3s();
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return USB_ERR_OK;
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}
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#define ERASE_LINE "\x1B\x6C\r$"
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uint16_t usb_init(uint8_t state) __z88dk_fastcall {
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uint8_t r;
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USB_MODULE_LEDS = 0x03;
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if (state == 0) {
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ch_cmd_reset_all();
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delay_medium();
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if (!ch_probe()) {
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USB_MODULE_LEDS = 0x00;
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return 0xFF00;
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}
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USB_MODULE_LEDS = 0x00;
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return 1;
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}
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if (state == 1) {
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r = ch_cmd_get_ic_version();
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USB_MODULE_LEDS = 0x00;
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return (uint16_t)r << 8 | 2;
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}
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if (state == 2) {
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usb_host_bus_reset();
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r = ch_very_short_wait_int_and_get_status();
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if (r != USB_INT_CONNECT) {
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USB_MODULE_LEDS = 0x00;
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return 2;
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}
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return 3;
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}
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memset(get_usb_work_area(), 0, sizeof(_usb_state));
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if (state != 2) {
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usb_host_bus_reset();
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delay_medium();
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}
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enumerate_all_devices();
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USB_MODULE_LEDS = 0x00;
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return (uint16_t)count_of_devices() << 8 | 4;
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}
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usb_error usb_scsi_seek(const uint16_t dev_index, const uint32_t lba) {
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device_config_storage *const dev = (device_config_storage *)get_usb_device_config(dev_index);
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dev->current_lba = lba;
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return USB_ERR_OK;
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}
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