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sw: wip commit -- dfu state machine works, spi broken 

Need to fix SPI and SB_WARMBOOT, but the DFU state machine now works.

Signed-off-by: Sean Cross <sean@xobs.io>
This commit is contained in:
Sean Cross 2019-03-28 11:13:25 +08:00
parent 6595eb1ef1
commit 0a4c73a63a
10 changed files with 127 additions and 175 deletions
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130
sw/include/generated/csr.h
View File

@ -12,6 +12,33 @@ extern uint32_t csr_readl(uint32_t addr);
#include <hw/common.h>
#endif /* ! CSR_ACCESSORS_DEFINED */
/* bbspi */
#define CSR_BBSPI_BASE 0xe0005000
#define CSR_BBSPI_DO_ADDR 0xe0005000
#define CSR_BBSPI_DO_SIZE 1
static inline unsigned char bbspi_do_read(void) {
unsigned char r = csr_readl(0xe0005000);
return r;
}
static inline void bbspi_do_write(unsigned char value) {
csr_writel(value, 0xe0005000);
}
#define CSR_BBSPI_OE_ADDR 0xe0005004
#define CSR_BBSPI_OE_SIZE 1
static inline unsigned char bbspi_oe_read(void) {
unsigned char r = csr_readl(0xe0005004);
return r;
}
static inline void bbspi_oe_write(unsigned char value) {
csr_writel(value, 0xe0005004);
}
#define CSR_BBSPI_DI_ADDR 0xe0005008
#define CSR_BBSPI_DI_SIZE 1
static inline unsigned char bbspi_di_read(void) {
unsigned char r = csr_readl(0xe0005008);
return r;
}
/* ctrl */
#define CSR_CTRL_BASE 0xe0000000
#define CSR_CTRL_RESET_ADDR 0xe0000000
@ -54,31 +81,16 @@ static inline unsigned int ctrl_bus_errors_read(void) {
return r;
}
/* picospi */
#define CSR_PICOSPI_BASE 0xe0005000
#define CSR_PICOSPI_DO_ADDR 0xe0005000
#define CSR_PICOSPI_DO_SIZE 1
static inline unsigned char picospi_do_read(void) {
unsigned char r = csr_readl(0xe0005000);
/* reboot */
#define CSR_REBOOT_BASE 0xe0005800
#define CSR_REBOOT_CTRL_ADDR 0xe0005800
#define CSR_REBOOT_CTRL_SIZE 1
static inline unsigned char reboot_ctrl_read(void) {
unsigned char r = csr_readl(0xe0005800);
return r;
}
static inline void picospi_do_write(unsigned char value) {
csr_writel(value, 0xe0005000);
}
#define CSR_PICOSPI_OE_ADDR 0xe0005004
#define CSR_PICOSPI_OE_SIZE 1
static inline unsigned char picospi_oe_read(void) {
unsigned char r = csr_readl(0xe0005004);
return r;
}
static inline void picospi_oe_write(unsigned char value) {
csr_writel(value, 0xe0005004);
}
#define CSR_PICOSPI_DI_ADDR 0xe0005008
#define CSR_PICOSPI_DI_SIZE 1
static inline unsigned char picospi_di_read(void) {
unsigned char r = csr_readl(0xe0005008);
return r;
static inline void reboot_ctrl_write(unsigned char value) {
csr_writel(value, 0xe0005800);
}
/* timer0 */
@ -177,78 +189,6 @@ static inline void timer0_ev_enable_write(unsigned char value) {
csr_writel(value, 0xe0002840);
}
/* uart */
#define CSR_UART_BASE 0xe0001800
#define CSR_UART_RXTX_ADDR 0xe0001800
#define CSR_UART_RXTX_SIZE 1
static inline unsigned char uart_rxtx_read(void) {
unsigned char r = csr_readl(0xe0001800);
return r;
}
static inline void uart_rxtx_write(unsigned char value) {
csr_writel(value, 0xe0001800);
}
#define CSR_UART_TXFULL_ADDR 0xe0001804
#define CSR_UART_TXFULL_SIZE 1
static inline unsigned char uart_txfull_read(void) {
unsigned char r = csr_readl(0xe0001804);
return r;
}
#define CSR_UART_RXEMPTY_ADDR 0xe0001808
#define CSR_UART_RXEMPTY_SIZE 1
static inline unsigned char uart_rxempty_read(void) {
unsigned char r = csr_readl(0xe0001808);
return r;
}
#define CSR_UART_EV_STATUS_ADDR 0xe000180c
#define CSR_UART_EV_STATUS_SIZE 1
static inline unsigned char uart_ev_status_read(void) {
unsigned char r = csr_readl(0xe000180c);
return r;
}
static inline void uart_ev_status_write(unsigned char value) {
csr_writel(value, 0xe000180c);
}
#define CSR_UART_EV_PENDING_ADDR 0xe0001810
#define CSR_UART_EV_PENDING_SIZE 1
static inline unsigned char uart_ev_pending_read(void) {
unsigned char r = csr_readl(0xe0001810);
return r;
}
static inline void uart_ev_pending_write(unsigned char value) {
csr_writel(value, 0xe0001810);
}
#define CSR_UART_EV_ENABLE_ADDR 0xe0001814
#define CSR_UART_EV_ENABLE_SIZE 1
static inline unsigned char uart_ev_enable_read(void) {
unsigned char r = csr_readl(0xe0001814);
return r;
}
static inline void uart_ev_enable_write(unsigned char value) {
csr_writel(value, 0xe0001814);
}
/* uart_phy */
#define CSR_UART_PHY_BASE 0xe0001000
#define CSR_UART_PHY_TUNING_WORD_ADDR 0xe0001000
#define CSR_UART_PHY_TUNING_WORD_SIZE 4
static inline unsigned int uart_phy_tuning_word_read(void) {
unsigned int r = csr_readl(0xe0001000);
r <<= 8;
r |= csr_readl(0xe0001004);
r <<= 8;
r |= csr_readl(0xe0001008);
r <<= 8;
r |= csr_readl(0xe000100c);
return r;
}
static inline void uart_phy_tuning_word_write(unsigned int value) {
csr_writel(value >> 24, 0xe0001000);
csr_writel(value >> 16, 0xe0001004);
csr_writel(value >> 8, 0xe0001008);
csr_writel(value, 0xe000100c);
}
/* usb */
#define CSR_USB_BASE 0xe0004800
#define CSR_USB_PULLUP_OUT_ADDR 0xe0004800

3
sw/include/generated/mem.h
View File

@ -1,6 +1,9 @@
#ifndef __GENERATED_MEM_H
#define __GENERATED_MEM_H
#define VEXRISCV_DEBUG_BASE 0xf00f0000
#define VEXRISCV_DEBUG_SIZE 0x00000010
#define SRAM_BASE 0x10000000
#define SRAM_SIZE 0x00020000

11
sw/include/system.h
View File

@ -56,4 +56,15 @@ static inline void mtspr(unsigned long add, unsigned long val)
}
#endif
#include <generated/csr.h>
__attribute__((noreturn)) static inline void reboot(void) {
reboot_ctrl_write(0xac);
while (1);
}
__attribute__((noreturn)) static inline void reboot_to_image(uint8_t image_index) {
reboot_ctrl_write(0xac | image_index);
while (1);
}
#endif /* __SYSTEM_H */

4
sw/include/usb.h
View File

@ -11,14 +11,16 @@ struct usb_setup_request;
void usb_isr(void);
void usb_init(void);
void usb_connect(void);
void usb_disconnect(void);
void usb_poll(void);
int usb_irq_happened(void);
void usb_setup(struct usb_device *dev, const struct usb_setup_request *setup);
int usb_send(struct usb_device *dev, int epnum, const void *data, int total_count);
int usb_ack(struct usb_device *dev, int epnum);
int usb_err(struct usb_device *dev, int epnum);
int usb_recv(struct usb_device *dev, void *buffer, unsigned int buffer_len);
void usb_poll(struct usb_device *dev);
int usb_wait_for_send_done(struct usb_device *dev);
#ifdef __cplusplus
}

20
sw/src/dfu.c
View File

@ -73,7 +73,7 @@ static struct toboot_state {
static dfu_state_t dfu_state = dfuIDLE;
static dfu_status_t dfu_status = OK;
static unsigned dfu_poll_timeout = 1;
static unsigned dfu_poll_timeout_ms = 100;
static uint32_t dfu_buffer[DFU_TRANSFER_SIZE/4];
static uint32_t dfu_buffer_offset;
@ -200,10 +200,18 @@ uint8_t dfu_getstate(void)
return dfu_state;
}
unsigned last_blockNum;
unsigned last_blockLength;
unsigned last_packetOffset;
unsigned last_packetLength;
bool dfu_download(unsigned blockNum, unsigned blockLength,
unsigned packetOffset, unsigned packetLength, const uint8_t *data)
{
// uint32_t i;
last_packetLength = packetLength;
last_packetOffset = packetOffset;
last_blockLength = blockLength;
last_blockNum = blockNum;
if (packetOffset + packetLength > DFU_TRANSFER_SIZE ||
packetOffset + packetLength > blockLength) {
@ -374,13 +382,13 @@ bool dfu_getstatus(uint8_t status[8])
// Ready to reboot. The main thread will take care of this. Also let the DFU tool
// know to leave us alone until this happens.
dfu_state = dfuMANIFEST;
dfu_poll_timeout = 10;
dfu_poll_timeout_ms = 10;
break;
case dfuMANIFEST:
// Perform the reboot
dfu_state = dfuMANIFEST_WAIT_RESET;
dfu_poll_timeout = 1000;
dfu_poll_timeout_ms = 1000;
break;
default:
@ -388,9 +396,9 @@ bool dfu_getstatus(uint8_t status[8])
}
status[0] = dfu_status;
status[1] = dfu_poll_timeout;
status[2] = dfu_poll_timeout >> 8;
status[3] = dfu_poll_timeout >> 16;
status[1] = dfu_poll_timeout_ms;
status[2] = dfu_poll_timeout_ms >> 8;
status[3] = dfu_poll_timeout_ms >> 16;
status[4] = dfu_state;
status[5] = 0; // iString

78
sw/src/main.c
View File

@ -4,8 +4,8 @@
#include <uart.h>
#include <usb.h>
#include <time.h>
#include "spi.h"
#include <dfu.h>
#include <spi.h>
#include <generated/csr.h>
struct ff_spi *spi;
@ -19,10 +19,13 @@ void isr(void)
if (irqs & (1 << USB_INTERRUPT))
usb_isr();
#ifdef CSR_UART_BASE
if (irqs & (1 << UART_INTERRUPT))
uart_isr();
#endif
}
#ifdef CSR_UART_BASE
static void rv_putchar(void *ignored, char c)
{
(void)ignored;
@ -32,10 +35,13 @@ static void rv_putchar(void *ignored, char c)
return;
uart_write(c);
}
#endif
static void init(void)
{
#ifdef CSR_UART_BASE
init_printf(NULL, rv_putchar);
#endif
irq_setmask(0);
irq_setie(1);
uart_init();
@ -82,71 +88,15 @@ int main(int argc, char **argv)
init();
// // picospi_cfg_write(0);
// picospi_oe_write(0xff);
// picospi_do_write(0);
// // uint8_t last_value = 0;
// printf("\nToggling: %02x ", picospi_oe_read());
// while (1) {
// // uint8_t new_value = picospi_di_read();
// // if (new_value != last_value) {
// // printf("SPI %02x -> %02x\n", last_value, new_value);
// // last_value = new_value;
// // }
// // picospi_oe_write(0xff);
// // printf("\b0");
// // picospi_oe_write(0x00);
// // printf("\b1");
// // picospi_do_write(0x00);
// // printf("\b0");
// // picospi_do_write(0xff);
// // printf("\b1");
// }
// printf("\nPress any key to read...");
// while(1) {
// uart_read();
// struct spi_id id = spiId(spi);
// printf("Manufacturer ID: %s (%02x)\n", id.manufacturer, id.manufacturer_id);
// if (id.manufacturer_id != id._manufacturer_id)
// printf("!! JEDEC Manufacturer ID: %02x\n",
// id._manufacturer_id);
// printf("Memory model: %s (%02x)\n", id.model, id.memory_type);
// printf("Memory size: %s (%02x)\n", id.capacity, id.memory_size);
// printf("Device ID: %02x\n", id.device_id);
// if (id.device_id != id.signature)
// printf("!! Electronic Signature: %02x\n", id.signature);
// printf("Serial number: %02x %02x %02x %02x\n", id.serial[0], id.serial[1], id.serial[2], id.serial[3]);
// printf("Status 1: %02x\n", spiReadStatus(spi, 1));
// printf("Status 2: %02x\n", spiReadStatus(spi, 2));
// printf("Status 3: %02x\n", spiReadStatus(spi, 3));
// }
// puts("\nPress any key to start...");
// uart_read();
// printf("\n\nUSB API: %s\n", usb_hw_api());
// puts("Enabling USB");
usb_connect();
// printf("USB enabled.\n");
// usb_print_status();
int last = 0;
int i;
while (1)
{
// if (usb_irq_happened() != last) {
// last = usb_irq_happened();
// // printf("USB %d IRQ happened\n", last);
// }
usb_poll();
/*
printf("Press any key to send... ");
uart_read();
printf("Sending... ");
bfr[0] = 0;
bfr[1] = ~0;
bfr[2] = 0;
usb_send(NULL, 0, bfr, 1);
printf("Sent\n");
*/
usb_poll(NULL);
i++;
// if (i > 200)
// reboot_ctrl_write(0xac);
}
return 0;
}

6
sw/src/spi.c
View File

@ -24,7 +24,7 @@ static void gpioSetMode(int pin, int mode) {
oe_mirror |= 1 << pin;
else
oe_mirror &= ~(1 << pin);
picospi_oe_write(oe_mirror);
bbspi_oe_write(oe_mirror);
}
static void gpioWrite(int pin, int val) {
@ -32,11 +32,11 @@ static void gpioWrite(int pin, int val) {
do_mirror |= 1 << pin;
else
do_mirror &= ~(1 << pin);
picospi_do_write(do_mirror);
bbspi_do_write(do_mirror);
}
static int gpioRead(int pin) {
return !!(picospi_di_read() & (1 << pin));
return !!(bbspi_di_read() & (1 << pin));
}
#define SPI_ONLY_SINGLE

25
sw/src/usb-dev.c
View File

@ -2,7 +2,7 @@
#include <unistd.h>
#include <usb.h>
#include <dfu.h>
#include <system.h>
#include <printf.h>
#include <usb-desc.h>
@ -10,7 +10,7 @@
static uint8_t reply_buffer[8];
static uint8_t usb_configuration = 0;
#define USB_MAX_PACKET_SIZE 64
static uint8_t rx_buffer[USB_MAX_PACKET_SIZE];
static uint32_t rx_buffer[USB_MAX_PACKET_SIZE/4];
void usb_setup(struct usb_device *dev, const struct usb_setup_request *setup)
{
@ -167,22 +167,39 @@ void usb_setup(struct usb_device *dev, const struct usb_setup_request *setup)
int bytes_remaining = setup->wLength;
int ep0_rx_offset = 0;
while (bytes_remaining > 0) {
// Fill the buffer, or if there is enough space transfer the whole packet.
unsigned int len = setup->wLength;
if (len > sizeof(rx_buffer))
len = sizeof(rx_buffer);
unsigned int i;
for (i = 0; i < sizeof(rx_buffer)/4; i++)
rx_buffer[i] = 0xffffffff;
// Receive DATA packets (which are automatically ACKed)
usb_recv(dev, rx_buffer, len);
len = usb_recv(dev, (void *)rx_buffer, len);
// Append the data to the download buffer.
dfu_download(setup->wValue, setup->wLength, ep0_rx_offset, len, rx_buffer);
dfu_download(setup->wValue, setup->wLength, ep0_rx_offset, len, (void *)rx_buffer);
bytes_remaining -= len;
ep0_rx_offset += len;
}
return;
case 0x0021: // DFU_DETACH
// Send the "ACK" packet and wait for it
// to be received.
usb_ack(dev, 0);
usb_wait_for_send_done(dev);
usb_disconnect();
// Issue a reboot
reboot_to_image(1);
while (1)
;
return;
case 0x03a1: // DFU_GETSTATUS
if (setup->wIndex > 0)
{

20
sw/src/usb-epfifo.c
View File

@ -4,6 +4,7 @@
#include <string.h>
#include <printf.h>
#include <uart.h>
#include <usb.h>
#ifdef CSR_USB_EP_0_OUT_EV_PENDING_ADDR
@ -39,6 +40,10 @@ enum epfifo_response {
#define USB_EV_ERROR 1
#define USB_EV_PACKET 2
void usb_disconnect(void) {
usb_pullup_out_write(0);
}
void usb_connect(void) {
usb_ep_0_out_ev_pending_write(usb_ep_0_out_ev_enable_read());
@ -56,6 +61,7 @@ void usb_connect(void) {
}
void usb_init(void) {
usb_pullup_out_write(0);
return;
}
@ -115,6 +121,14 @@ int usb_send(struct usb_device *dev, int epnum, const void *data, int total_coun
return 0;
}
int usb_wait_for_send_done(struct usb_device *dev) {
while (current_data && current_length)
usb_poll(dev);
while (usb_ep_0_in_respond_read() == EPF_ACK)
;
return 0;
}
void usb_isr(void) {
irq_count++;
uint8_t ep0o_pending = usb_ep_0_out_ev_pending_read();
@ -133,7 +147,7 @@ void usb_isr(void) {
usb_ep_0_out_obuf_head_write(0);
}
usb_ep_0_out_ev_pending_write(ep0o_pending);
usb_ep0out_buffer_len[usb_ep0out_wr_ptr] = byte_count;
usb_ep0out_buffer_len[usb_ep0out_wr_ptr] = byte_count - 2 /* Strip off CRC16 */;
usb_ep0out_wr_ptr = (usb_ep0out_wr_ptr + 1) & (EP0OUT_BUFFERS-1);
if (last_tok == USB_PID_SETUP) {
@ -154,6 +168,7 @@ void usb_isr(void) {
usb_ep_0_in_respond_write(EPF_NAK);
}
return;
}
@ -214,7 +229,8 @@ int usb_recv(struct usb_device *dev, void *buffer, unsigned int buffer_len) {
return 0;
}
void usb_poll(void) {
void usb_poll(struct usb_device *dev) {
(void)dev;
// If some data was received, then process it.
if (usb_ep0out_rd_ptr != usb_ep0out_wr_ptr) {
const struct usb_setup_request *request = (const struct usb_setup_request *)(usb_ep0out_buffer[usb_ep0out_rd_ptr]);

5
sw/third_party/libbase/uart.c vendored
View File

@ -3,6 +3,7 @@
#include <generated/csr.h>
#include <hw/flags.h>
#ifdef CSR_UART_BASE
/*
* Buffer sizes must be a power of 2 so that modulos can be computed
* with logical AND.
@ -108,3 +109,7 @@ void uart_sync(void)
{
while(tx_consume != tx_produce);
}
#else /* !CSR_UART_BASE */
void uart_init(void) {}
void uart_isr(void) {}
#endif