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-rw-r--r--src/drivers/usb.c306
-rw-r--r--src/drivers/usb.h53
2 files changed, 342 insertions, 17 deletions
diff --git a/src/drivers/usb.c b/src/drivers/usb.c
index c6aa02d..ea264cb 100644
--- a/src/drivers/usb.c
+++ b/src/drivers/usb.c
@@ -1,31 +1,36 @@
+#include "../drivers/uart.h"
#include "../drivers/usb.h"
#include "../sys/core.h"
#define DRIVERS_USB_C
unsigned char usb_buffer0[256] = {0};
unsigned char usb_buffer1[256] = {0};
+unsigned char usb_buffer3[256] = {0};
-static struct UsbDeviceRequest udr = {
- .Type = 0xA0, // DEVICE_TO_HOST | STDANDAD | DEVICE
- .Request = 0x06, // GET_DESCRIPTOR
- .Value = 0x0100, // descriptor.type = 0x01, decriptor.index = 0x00
- .Index = 0,
- .Length = 64,
-};
+void my_memcpy(void *dest, void *src, size_t n) {
+ char *src_char = (char *)src;
+ char *dest_char = (char *)dest;
+ for (size_t i=0; i<n; i++) {
+ dest_char[i] = src_char[i];
+ }
+}
+
+static void *my_memset(void *s, int c, size_t n)
+{
+ const uint8_t uc = c % 0xff;
+ uint8_t *p = (uint8_t *)s;
-void my_memcpy(void *dest, void *src, unsigned int n) {
- char *src_char = (char *)src;
- char *dest_char = (char *)dest;
- for (unsigned int i=0; i<n; i++) {
- dest_char[i] = src_char[i];
- }
+ while (n-- > 0)
+ *p++ = uc;
+
+ return (s);
}
static void txrx_control_msg(uint8_t txlen)
{
// send setup & control packet
// set dma buffer
- *USB_HOST_HCDMA0 = (unsigned long long) usb_buffer0;
+ *USB_HOST_HCDMA0 = (uint64_t) usb_buffer0;
*USB_HOST_HCDMA0 |= 0xC0000000;
// HCTSIZ0.Pid = 2'd3 (SETUP) , HCTSIZ0.PktCnt = 10'h1 , HCTSIZ0.XferSize = 18'd8
*USB_HOST_HCTSIZ0 = 3 << 29 | 1 << 19 | txlen;
@@ -34,7 +39,7 @@ static void txrx_control_msg(uint8_t txlen)
// recieve control packet
// set dma buffer
- *USB_HOST_HCDMA1 = (unsigned long long) usb_buffer1;
+ *USB_HOST_HCDMA1 = (uint64_t) usb_buffer1;
*USB_HOST_HCDMA1 |= 0xC0000000;
// HCTSIZ1.Pid = 2'd2 (DATA1) , HCTSIZ1.PktCnt = 10'h1 , HCTSIZ1.XferSize = 18'd64
*USB_HOST_HCTSIZ1 = 2 << 29 | 1 << 19 | 64;
@@ -42,14 +47,281 @@ static void txrx_control_msg(uint8_t txlen)
*USB_HOST_HCCHAR1 |= 1<<31;
}
-void send_packet(void)
+void usbhost_id(void)
{
+ uart_string("USB_CORE_GUID ");
+ uart_hex(*USB_CORE_GUID);
+ uart_string("\nUSB_CORE_GSNPSID ");
+ uart_hex(*USB_CORE_GSNPSID);
+ uart_char('\n');
+}
+
+void usbhost_start(void)
+{
+ // USB Host power on
+ // HPRT.PrtPwr = 1'b1 -> HPRT.PrtRst = 1'b1 -> wait 60msec -> HPRT.PrtRst = 1'b0
+ *USB_HOST_HPRT |= 1 << 12;
+ *USB_HOST_HPRT |= 1 << 8;
+ delay(0x100000);
+ *USB_HOST_HPRT &= ~(1 << 8);
+
+ // enable irq
+ // GAHBCFG.GlblIntrMsk = 1'b1
+ // GINTMSK.ConIDStsChngMsk = 1'b1, GINTMSK.PrtIntMsk = 1'b1, GINTMSK.SofMsk = 1'b1
+ *USB_CORE_GAHBCFG |= 1;
+ *USB_CORE_GINTMSK = 1 << 28 | 1 << 24 | 0 << 3;
+
+ // port enable and retry detect
+ // HPRT.PrtPwr = 1'b1, HPRT.PrtEnChng = 1'b1, HPRT.PrtConnDet = 1'b1
+ *USB_HOST_HPRT = 1 << 12 | 1 << 3 | 1 << 1;
+
+ // enable channel irq
+ // HAINTMASK.HAINTMsk = 16'h3
+ // HCINTMSK0.XferComplMsk = 1'b1
+ *USB_HOST_HAINTMSK |= 0x3;
+ *USB_HOST_HCINTMSK0 |= 1;
+ *USB_HOST_HCINTMSK1 |= 1;
+
// HCCAR1.EPDir = 1'b0 (OUT) / 1'b01(IN), HCCAR1.MPS = 11'h40
*USB_HOST_HCCHAR0 |= 0x40; // OUT
*USB_HOST_HCCHAR1 |= 1 << 15 | 0x40; // IN
+}
+
+void usbhost_poll_intr(void)
+{
+ uint8_t dev = 2;
+
+ my_memset(usb_buffer3, 0, 256);
+
+ // HCCAR3.EPType = 2'b11 (Interupt), HCCAR3.EPDir = 1'b01(IN), HCCAR3.MPS = 11'h40
+ *USB_HOST_HCCHAR3 |= 3 << 18 | 1 << 15 | 1 << 11 | 0x40; // IN
+ *USB_HOST_HCCHAR3 |= dev << 22 ;
+
+ // recieve interrupt transfer
+ // set dma buffer
+ *USB_HOST_HCDMA3 = (uint64_t) usb_buffer3;
+ *USB_HOST_HCDMA3 |= 0xC0000000;
+ // HCTSIZ1.Pid = 2'd2 (DATA1) , HCTSIZ1.PktCnt = 10'h1 , HCTSIZ1.XferSize = 18'd64
+ *USB_HOST_HCTSIZ3 = 2 << 29 | 1 << 19 | 64;
+ // HCCAR1.ChEna = 1'b1
+ *USB_HOST_HCCHAR3 |= 1<<31;
+
+ uart_string("HUB INT ");
+ for (int i = 0; i < 2; i++) {
+ uart_hex(usb_buffer3[i]);
+ uart_char(' ');
+ }
+ uart_char('\n');
+}
+
+static void prepare_control_msg(void)
+{
+ my_memset(usb_buffer0, 0, 256);
+ my_memset(usb_buffer1, 0, 256);
+
+ // HCCAR1.EPDir = 1'b0 (OUT) / 1'b01(IN), HCCAR1.MPS = 11'h40
+ *USB_HOST_HCCHAR0 |= 0x40; // OUT
+ *USB_HOST_HCCHAR1 |= 1 << 15 | 0x40; // IN
+
+ //clear dev
+ *USB_HOST_HCCHAR0 &= ~(0x7f << 22);
+ *USB_HOST_HCCHAR1 &= ~(0x7f << 22);
+}
+
+
+void usbhost_get_descriptor(uint8_t dev, uint8_t descriptor_type, bool is_hub)
+{
+ prepare_control_msg();
+
+ *USB_HOST_HCCHAR0 |= dev << 22;
+ *USB_HOST_HCCHAR1 |= dev << 22;
+
+ // build packet
+ my_memcpy(usb_buffer0, &(struct UsbDeviceRequest) {
+ .Type = is_hub ? 0xA0 : 0x80, // DEVICE_TO_HOST | STANDARD | DEVICE
+ .Request = 0x06, // GET_DESCRIPTOR
+ .Value = descriptor_type << 8 | 0x00, // descriptor.type = 0x01, decriptor.index = 0x00
+ .Index = 0,
+ .Length = 64,
+ }, 8);
+
+ txrx_control_msg(8);
+}
+
+void usbhost_get_portstatus(uint8_t dev, uint8_t port, bool is_hub)
+{
+ prepare_control_msg();
+
+ *USB_HOST_HCCHAR0 |= dev << 22;
+ *USB_HOST_HCCHAR1 |= dev << 22;
+
+ // build packet
+ my_memcpy(usb_buffer0, &(struct UsbDeviceRequest) {
+ .Type = is_hub ? 0xA3 : 0x80, // DEVICE_TO_HOST | CLASS or STANDARD | DEVICE
+ .Request = 0x00, // GET_STATUS
+ .Index = port,
+ .Length = 4,
+ }, 8);
+
+ txrx_control_msg(8);
+
+ uart_string("PORT STATUS ");
+ uart_10(port);
+ for (int i = 0; i < 4; i++) {
+ uart_hex(usb_buffer1[i]);
+ uart_char(' ');
+ }
+ uart_char('\n');
+}
+
+void usbhost_set_address(uint8_t address)
+{
+ prepare_control_msg();
+
+ // build packet
+ my_memcpy(usb_buffer0, &(struct UsbDeviceRequest) {
+ .Type = 0,
+ .Request = 5, // Set address request
+ .Value = address, // Address to set
+ }, 8);
+
+ txrx_control_msg(8);
+}
+
+void usbhost_set_config(uint8_t dev, uint8_t config)
+{
+ prepare_control_msg();
+
+ *USB_HOST_HCCHAR0 |= dev << 22;
+ *USB_HOST_HCCHAR1 |= dev << 22;
// build packet
- my_memcpy(usb_buffer0, &udr, 8);
+ my_memcpy(usb_buffer0, &(struct UsbDeviceRequest) {
+ .Type = 0,
+ .Request = 9, // Set config
+ .Value = config, // Address to set
+ .Length = 0,
+ }, 8);
txrx_control_msg(8);
}
+
+void usbhost_set_portfeature(uint8_t dev, uint8_t port, uint16_t feature)
+{
+ prepare_control_msg();
+
+ *USB_HOST_HCCHAR0 |= dev << 22;
+ *USB_HOST_HCCHAR1 |= dev << 22;
+
+ // build packet
+ my_memcpy(usb_buffer0, &(struct UsbDeviceRequest) {
+ .Type = 0x23, // ??
+ .Request = 0x03, // SET_FEATURE
+ .Value = (uint16_t)feature, // Feature we are changing
+ .Index = port,
+ .Length = 0,
+ }, 8);
+
+ txrx_control_msg(8);
+}
+
+void usbhost_clear_portfeature(uint8_t dev, uint8_t port, uint16_t feature)
+{
+ prepare_control_msg();
+
+ *USB_HOST_HCCHAR0 |= dev << 22;
+ *USB_HOST_HCCHAR1 |= dev << 22;
+
+ // build packet
+ my_memcpy(usb_buffer0, &(struct UsbDeviceRequest) {
+ .Type = 0x23, // ??
+ .Request = 0x01, // CLEAR_FEATURE
+ .Value = feature,
+ .Index = port,
+ .Length = 0,
+ }, 8);
+
+ txrx_control_msg(8);
+}
+
+void usb_trig(void)
+{
+ usbhost_id();
+ usbhost_start();
+
+ uart_string("GET DEVICE_DESCRIPTOR\n");
+ usbhost_get_descriptor(0, 0x01, false);
+ for (int i = 0; i < 18; i++) {
+ uart_hex(usb_buffer1[i]);
+ uart_char(' ');
+ }
+ uart_char('\n');
+
+ uart_string("SET ADDRESS 2\n");
+ usbhost_set_address(2);
+
+ uart_string("GET CONFIG_DESCRIPTOR\n");
+ usbhost_get_descriptor(2, 0x02, false);
+ for (int i = 0; i < 18; i++) {
+ uart_hex(usb_buffer1[i]);
+ uart_char(' ');
+ }
+ uart_char('\n');
+
+ uart_string("SET CONFIG 1\n");
+ usbhost_set_config(2, 1);
+
+ uart_string("GET HUB_DESCRIPTOR\n");
+ usbhost_get_descriptor(2, 41, true);
+ for (int i = 0; i < 18; i++) {
+ uart_hex(usb_buffer1[i]);
+ uart_char(' ');
+ }
+ uart_char('\n');
+ uart_string("Hub device 0 has ");
+ uart_10(usb_buffer1[2]);
+ uart_string(" ports\n");
+
+ usbhost_get_portstatus(2, 0, false);
+ usbhost_get_portstatus(2, 1, true);
+ usbhost_clear_portfeature(2, 1, 0x0010);
+ usbhost_get_portstatus(2, 1, true);
+
+ uart_string("SET PORT 1 POWER ON\n");
+ usbhost_set_portfeature(2, 1, 0x0008);
+ usbhost_get_portstatus(2, 1, true);
+
+ delay(0x100000);
+
+ uart_string("CLEAR PORT FEATURE\n");
+ usbhost_clear_portfeature(2, 1, 0x0010);
+ // usbhost_get_portstatus(2, 1, true);
+ // usbhost_poll_intr();
+
+ uart_string("SET PORT 1 RESET\n");
+ usbhost_set_portfeature(2, 1, 0x0004);
+ // usbhost_poll_intr();
+
+ uart_string("CLEAR PORT FEATURE\n");
+ usbhost_clear_portfeature(2, 1, 0x0014);
+ usbhost_clear_portfeature(2, 1, 0x0011);
+ // usbhost_get_portstatus(2, 1, true);
+ // usbhost_poll_intr();
+
+ uart_string("GET DEVICE_DESCRIPTOR\n");
+ usbhost_get_descriptor(0, 0x01, false);
+ for (int i = 0; i < 18; i++) {
+ uart_hex(usb_buffer1[i]);
+ uart_char(' ');
+ }
+ uart_string("\n");
+
+ usbhost_set_address(3);
+ uart_string("GET CONFIG_DESCRIPTOR\n");
+ usbhost_get_descriptor(3, 0x02, false);
+ for (int i = 0; i < 18; i++) {
+ uart_hex(usb_buffer1[i]);
+ uart_char(' ');
+ }
+ uart_string("\n");
+}
diff --git a/src/drivers/usb.h b/src/drivers/usb.h
index abe0133..e1aae5f 100644
--- a/src/drivers/usb.h
+++ b/src/drivers/usb.h
@@ -6,10 +6,63 @@ extern unsigned char usb_buffer0[256];
extern unsigned char usb_buffer1[256];
#endif
+#define size_t unsigned int
+#define bool unsigned char
#define uint8_t unsigned char
#define uint16_t unsigned short
#define uint32_t unsigned long
+#define uint64_t unsigned long long
+#define true 1
+#define false 0
+
+#define USB_BASE 0x3F980000
+//CORE
+#define USB_CORE_GAHBCFG ((volatile uint32_t *)(0x8 + USB_BASE))
+#define USB_CORE_GINTSTS ((volatile uint32_t *)(0x14 + USB_BASE))
+#define USB_CORE_GINTMSK ((volatile uint32_t *)(0x18 + USB_BASE))
+#define USB_CORE_GUID ((volatile uint32_t *)(0x3C + USB_BASE))
+#define USB_CORE_GSNPSID ((volatile uint32_t *)(0x40 + USB_BASE))
+//HOST
+#define USB_HOST_HCFG ((volatile uint32_t *)(0x400 + USB_BASE))
+#define USB_HOST_HAINTMSK ((volatile uint32_t *)(0x418 + USB_BASE))
+#define USB_HOST_HPRT ((volatile uint32_t *)(0x440 + USB_BASE))
+//CHANNEL
+#define USB_HOST_HCCHAR0 ((volatile uint32_t *)(0x500 + USB_BASE))
+#define USB_HOST_HCINTMSK0 ((volatile uint32_t *)(0x50C + USB_BASE))
+#define USB_HOST_HCTSIZ0 ((volatile uint32_t *)(0x510 + USB_BASE))
+#define USB_HOST_HCDMA0 ((volatile uint32_t *)(0x514 + USB_BASE))
+#define USB_HOST_HCCHAR1 ((volatile uint32_t *)(0x520 + USB_BASE))
+#define USB_HOST_HCINTMSK1 ((volatile uint32_t *)(0x52C + USB_BASE))
+#define USB_HOST_HCTSIZ1 ((volatile uint32_t *)(0x530 + USB_BASE))
+#define USB_HOST_HCDMA1 ((volatile uint32_t *)(0x534 + USB_BASE))
+
+#define USB_HOST_HCCHAR2 ((volatile uint32_t *)(0x540 + USB_BASE))
+#define USB_HOST_HCINTMSK2 ((volatile uint32_t *)(0x54C + USB_BASE))
+#define USB_HOST_HCTSIZ2 ((volatile uint32_t *)(0x550 + USB_BASE))
+#define USB_HOST_HCDMA2 ((volatile uint32_t *)(0x554 + USB_BASE))
+#define USB_HOST_HCCHAR3 ((volatile uint32_t *)(0x560 + USB_BASE))
+#define USB_HOST_HCINTMSK3 ((volatile uint32_t *)(0x56C + USB_BASE))
+#define USB_HOST_HCTSIZ3 ((volatile uint32_t *)(0x570 + USB_BASE))
+#define USB_HOST_HCDMA3 ((volatile uint32_t *)(0x574 + USB_BASE))
+
+struct UsbDeviceRequest {
+ uint8_t Type;
+ uint8_t Request;
+ uint16_t Value;
+ uint16_t Index;
+ uint16_t Length;
+} __attribute__((__packed__));
void send_packet(void);
+void usbhost_start(void);
+void usbhost_id(void);
+void usbhost_get_descriptor(uint8_t dev, uint8_t descriptor_type, bool is_hub);
+void usbhost_get_portstatus(uint8_t dev, uint8_t port, bool is_hub);
+void usbhost_set_address(uint8_t address);
+void usbhost_set_config(uint8_t dev, uint8_t config);
+void usbhost_set_portfeature(uint8_t dev, uint8_t port, uint16_t feature);
+void usbhost_clear_portfeature(uint8_t dev, uint8_t port, uint16_t feature);
+void usbhost_poll_intr(void);
+void usb_trig(void);
#endif
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-26 06:44:39 +0000