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21 Commits

Author SHA1 Message Date
Triss 334d45ee83 ugh 2021-09-25 14:00:30 +02:00
Triss 22e8f70e30 ftdi code finished-ish, but not working yet 2021-09-25 14:00:28 +02:00
Triss 0c10da762a headache 2021-09-25 14:00:01 +02:00
Triss 3b76c6fb4a ftdi uart stuff (WIP) 2021-09-25 14:00:01 +02:00
Triss 1e9cac1ace ftdi bsp files skeleton 2021-09-25 14:00:01 +02:00
Triss 210f74dbc5 mpsse, mcuhost usb protocol decoding 2021-09-25 14:00:01 +02:00
Triss c5a4a6b3e5 mpsse stuff 2021-09-25 14:00:01 +02:00
Triss ca11c8e1e1 ftdi protocol handling: everything except mpsse and mcuhost 2021-09-25 14:00:01 +02:00
Triss d2860c8e10 forgot this file 2021-09-25 14:00:01 +02:00
Triss 45cce4dfff initial ftdi stuff 2021-09-25 14:00:01 +02:00
Triss a1561ee35a PERSISTENT_STORAGE usage flag 2021-09-25 14:00:00 +02:00
Triss 493be92bd2 better dpctl output for persistent storage 2021-09-25 13:58:06 +02:00
Triss 383dcc4ea9 clear remaining 32 reserved bytes 2021-09-25 13:58:06 +02:00
Triss 07db20ecb6 get storage to work now 2021-09-25 13:58:06 +02:00
Triss 6a4eafb96e dpctl storage stuff (untested) 2021-09-25 13:58:06 +02:00
Triss 9d2a970161 storage impl for modes 2021-09-25 13:58:06 +02:00
Triss 1318e0f9c2 i think thats a bug 2021-09-25 13:58:06 +02:00
Triss 4015b7bf42 PERSISTENT_STORAGE usage flag 2021-09-25 13:58:05 +02:00
Triss befced7132 finish storage base 2021-09-25 13:57:14 +02:00
Triss 36b55483a8 fix compilation, more stuff 2021-09-25 13:57:14 +02:00
Triss 3c3795f8cb initial persistent storage code 2021-09-25 13:57:14 +02:00
40 changed files with 3270 additions and 24 deletions

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@ -1,4 +1,5 @@
option(USE_USBCDC_FOR_STDIO "Export an extra USB-CDC interface for stdio, instead of echoing it to a UART port (and requiring UART loopback for receiving stdio output on a host computer)." OFF)
option(PERSISTENT_STORAGE "Use persistent storage (usually on-chip/on-board flash) to save the current mode, and settings of modes" ON)
set(FAMILY "rp2040" CACHE STRING "Board/MCU family, decides which drivers to use. Set to RP2040 by default.")
set(BOARD "raspberry_pi_pico" CACHE STRING "Board used, determines the pinout. Defaults to the Raspberry Pi Pico.")
@ -46,10 +47,11 @@ if(FAMILY STREQUAL "rp2040")
if(USE_USBCDC_FOR_STDIO)
# we're going to manually implement this case
#pico_enable_stdio_uart(${PROJECT} 0)
target_compile_definitions(${PROJECT} PUBLIC USE_USBCDC_FOR_STDIO=1 PICO_STDIO_USB=1)
target_compile_definitions(${PROJECT} PUBLIC USE_USBCDC_FOR_STDIO=1)
else()
#pico_enable_stdio_uart(${PROJECT} 1)
endif()
# TODO: separate flag for disabling this one?
pico_enable_stdio_uart(${PROJECT} 1)
pico_enable_stdio_usb(${PROJECT} 0)
else()
@ -69,6 +71,8 @@ target_sources(${PROJECT} PUBLIC
${CMAKE_CURRENT_SOURCE_DIR}/src/main.c
${CMAKE_CURRENT_SOURCE_DIR}/src/alloc.c
${CMAKE_CURRENT_SOURCE_DIR}/src/modeset.c
${CMAKE_CURRENT_SOURCE_DIR}/src/storage.c
${CMAKE_CURRENT_SOURCE_DIR}/src/storage_save.c
${CMAKE_CURRENT_SOURCE_DIR}/src/thread.c
${CMAKE_CURRENT_SOURCE_DIR}/src/tusb_plt.S
${CMAKE_CURRENT_SOURCE_DIR}/src/usb_descriptors.c
@ -81,6 +85,8 @@ target_sources(${PROJECT} PUBLIC
${CMAKE_CURRENT_SOURCE_DIR}/src/m_jscan/jscan.c
${CMAKE_CURRENT_SOURCE_DIR}/src/m_sump/_sump.c
${CMAKE_CURRENT_SOURCE_DIR}/src/m_sump/cdc_sump.c
${CMAKE_CURRENT_SOURCE_DIR}/src/m_ftdi/_ftdi.c
${CMAKE_CURRENT_SOURCE_DIR}/src/m_ftdi/ftdi.c
${CMAKE_CURRENT_SOURCE_DIR}/bsp/${FAMILY}/m_default/cdc_uart.c
${CMAKE_CURRENT_SOURCE_DIR}/bsp/${FAMILY}/m_default/dap_jtag.c
${CMAKE_CURRENT_SOURCE_DIR}/bsp/${FAMILY}/m_default/dap_swd.c
@ -91,12 +97,25 @@ target_sources(${PROJECT} PUBLIC
${CMAKE_CURRENT_SOURCE_DIR}/bsp/${FAMILY}/m_default/tempsensor.c
${CMAKE_CURRENT_SOURCE_DIR}/bsp/${FAMILY}/m_jscan/jscan_hw.c
${CMAKE_CURRENT_SOURCE_DIR}/bsp/${FAMILY}/m_sump/sump_hw.c
${CMAKE_CURRENT_SOURCE_DIR}/bsp/${FAMILY}/m_ftdi/ftdi_hw.c
${CMAKE_CURRENT_SOURCE_DIR}/bsp/${FAMILY}/m_ftdi/ftdi_proto.c
${CMAKE_CURRENT_SOURCE_DIR}/bsp/${FAMILY}/m_ftdi/uart.c
${CMAKE_CURRENT_SOURCE_DIR}/bsp/${FAMILY}/m_ftdi/mpsse.c
${CMAKE_CURRENT_SOURCE_DIR}/bsp/${FAMILY}/m_ftdi/asyncbb.c
${CMAKE_CURRENT_SOURCE_DIR}/bsp/${FAMILY}/m_ftdi/syncbb.c
${CMAKE_CURRENT_SOURCE_DIR}/bsp/${FAMILY}/m_ftdi/mcuhost.c
${CMAKE_CURRENT_SOURCE_DIR}/bsp/${FAMILY}/m_ftdi/fifo.c
${CMAKE_CURRENT_SOURCE_DIR}/bsp/${FAMILY}/m_ftdi/cpufifo.c
)
if(USE_USBCDC_FOR_STDIO)
target_compile_definitions(${PROJECT} PUBLIC USE_USBCDC_FOR_STDIO=1)
target_sources(${PROJECT} PUBLIC
${CMAKE_CURRENT_SOURCE_DIR}/bsp/${FAMILY}/cdc_stdio.c
)
endif()
if (PERSISTENT_STORAGE)
target_compile_definitions(${PROJECT} PUBLIC PERSISTENT_STORAGE=1)
endif()
target_include_directories(${PROJECT} PUBLIC
${CMAKE_CURRENT_SOURCE_DIR}/src/
${CMAKE_CURRENT_SOURCE_DIR}/libco/
@ -108,8 +127,9 @@ target_include_directories(${PROJECT} PUBLIC
${CMAKE_CURRENT_SOURCE_DIR}/bsp/default/
)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -Werror=implicit-function-declaration -Werror=return-type")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -Werror=implicit-function-declaration -Werror=return-type -Werror=maybe-uninitialized")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--cref")
add_custom_target(fix_db ALL WORKING_DIRECTORY ${OUTPUT_DIR}
COMMAND "${CMAKE_CURRENT_SOURCE_DIR}/scripts/fix_clang_db.py")
@ -141,6 +161,9 @@ if(FAMILY STREQUAL "rp2040")
pico_generate_pio_header(${PROJECT} ${CMAKE_CURRENT_SOURCE_DIR}/bsp/${FAMILY}/m_default/swo_uart_rx.pio)
pico_generate_pio_header(${PROJECT} ${CMAKE_CURRENT_SOURCE_DIR}/bsp/${FAMILY}/m_default/swo_manchester_encoding.pio)
pico_generate_pio_header(${PROJECT} ${CMAKE_CURRENT_SOURCE_DIR}/bsp/${FAMILY}/m_ftdi/ftdi_uart_rx.pio)
pico_generate_pio_header(${PROJECT} ${CMAKE_CURRENT_SOURCE_DIR}/bsp/${FAMILY}/m_ftdi/ftdi_uart_tx.pio)
pico_add_extra_outputs(${PROJECT})
else()

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@ -20,6 +20,11 @@
#else
#define CFG_TUD_CDC 2
#endif
#define CFG_TUD_VENDOR 1
#define CFG_TUD_VENDOR 3
/* don't access storage for RAM-only builds */
#if !PICO_NO_FLASH
#define DBOARD_HAS_STORAGE
#endif
#endif

66
bsp/rp2040/bsp-storage.h Normal file
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@ -0,0 +1,66 @@
// vim: set et:
#ifndef BSP_STORAGE_H_
#define BSP_STORAGE_H_
#include <stddef.h>
#include <stdint.h>
#include <stdbool.h>
#if !PICO_NO_FLASH
#include <string.h>
#include <hardware/regs/addressmap.h>
#include <hardware/regs/xip.h>
#include <hardware/structs/xip_ctrl.h>
#include <hardware/flash.h>
#include <hardware/sync.h>
#include <pico/bootrom.h>
#ifndef PICO_FLASH_SIZE_BYTES
#error "PICO_FLASH_SIZE_BYTES not defined"
#endif
static inline size_t storage_get_program_size(void) {
extern uint8_t __flash_binary_start, __flash_binary_end;
return (size_t)&__flash_binary_end - (size_t)&__flash_binary_start;
}
static inline size_t storage_get_program_offset(void) {
extern uint8_t __flash_binary_start;
return (size_t)&__flash_binary_start - XIP_BASE;
}
#define STORAGE_SIZE PICO_FLASH_SIZE_BYTES
#define STORAGE_ERASEWRITE_ALIGN FLASH_SECTOR_SIZE
// reads don't require any alignment
// ---
static inline void storage_read(void* dest, size_t offset, size_t size) {
// TODO: XIP/SSI DMA?
// * XIP DMA: used for loading stuff in the background while running code
// * SSI DMA: blocking & fast, code needs to run from RAM. a bit unwieldy
memcpy(dest, (uint8_t*)(XIP_BASE+offset), size);
}
static bool storage_erasewrite(size_t offset, const void* src, size_t size) {
// bad alignment => give an error in advance
if (offset & (FLASH_SECTOR_SIZE - 1)) return false;
if (size & (FLASH_SECTOR_SIZE - 1)) return false;
// memcmp pre: if no changes, don't flash
if (!memcmp(src, (uint8_t*)(XIP_BASE+offset), size)) return true;
flash_range_erase(offset, size);
flash_range_program(offset, src, size);
return !memcmp(src, (uint8_t*)(XIP_BASE+offset), size);
}
#endif
#endif

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@ -61,6 +61,7 @@ uint32_t SWO_Mode_UART(uint32_t enable) {
mode_enabled = false;
if (swo_dmach >= 0) {
dma_channel_abort(swo_dmach);
dma_channel_unclaim(swo_dmach); // ugh why is it "dma_channel_xyz" and "dma_xyz_channel"
swo_dmach = -1;
}
@ -189,6 +190,7 @@ uint32_t SWO_Mode_Manchester(uint32_t enable) {
mode_enabled = false;
if (swo_dmach >= 0) {
dma_channel_abort(swo_dmach);
dma_channel_unclaim(swo_dmach); // ugh why is it "dma_channel_xyz" and "dma_xyz_channel"
swo_dmach = -1;
}

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@ -1,7 +1,7 @@
// vim: set et ts=8:
#ifndef PINOUT_H_
#define PINOUT_H_
#ifndef BSP_PINOUT_M_DEFAULT_H_
#define BSP_PINOUT_M_DEFAULT_H_
// UART config
#define PINOUT_UART_TX 8

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@ -0,0 +1,28 @@
// vim: set et:
#include "m_ftdi/ftdi.h"
void ftdi_if_asyncbb_init(struct ftdi_interface* itf) {
(void)itf;
}
void ftdi_if_asyncbb_deinit(struct ftdi_interface* itf) {
(void)itf;
}
void ftdi_if_asyncbb_set_baudrate(struct ftdi_interface* itf, uint32_t baudrate) {
(void)itf; (void)baudrate;
}
void ftdi_if_asyncbb_write(struct ftdi_interface* itf, const uint8_t* data, size_t datasize) {
(void)itf; (void)data; (void)datasize;
}
size_t ftdi_if_asyncbb_read(struct ftdi_interface* itf, uint8_t* data, size_t maxsize) {
(void)itf; (void)data; (void)maxsize;
return 0;
}

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@ -0,0 +1,34 @@
#ifndef BSP_FEATURE_M_FTDI_H_
#define BSP_FEATURE_M_FTDI_H_
#define DBOARD_HAS_FTDI
/* TODO: more fine-grained FTDI support/not-support stuff? */
#include "bsp-info.h"
// not all that much here
enum {
HID_N__NITF = 0
};
enum {
#ifdef USE_USBCDC_FOR_STDIO
CDC_N_STDIO = 0,
#endif
CDC_N__NITF
};
enum {
/*VND_N_FTDI_IFA = 0,
VND_N_FTDI_IFB,*/
VND_N_CFG = 0,
VND_N__NITF
};
#define VND_N_FTDI_IFA 42
#define VND_N_FTDI_IFB 69
#endif

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@ -0,0 +1,23 @@
// vim: set et:
#include "m_ftdi/ftdi.h"
void ftdi_if_cpufifo_init(struct ftdi_interface* itf) {
(void)itf;
}
void ftdi_if_cpufifo_deinit(struct ftdi_interface* itf) {
(void)itf;
}
void ftdi_if_cpufifo_set_baudrate(struct ftdi_interface* itf, uint32_t baudrate) {
(void)itf; (void)baudrate;
}
void ftdi_if_cpufifo_write(struct ftdi_interface* itf, const uint8_t* data, size_t datasize) {
(void)itf; (void)data; (void)datasize;
}
size_t ftdi_if_cpufifo_read(struct ftdi_interface* itf, uint8_t* data, size_t maxsize) {
(void)itf; (void)data; (void)maxsize;
return 0;
}

22
bsp/rp2040/m_ftdi/fifo.c Normal file
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@ -0,0 +1,22 @@
// vim: set et:
#include "m_ftdi/ftdi.h"
void ftdi_if_fifo_init(struct ftdi_interface* itf) {
(void)itf;
}
void ftdi_if_fifo_deinit(struct ftdi_interface* itf) {
(void)itf;
}
void ftdi_if_fifo_set_baudrate(struct ftdi_interface* itf, uint32_t baudrate) {
(void)itf; (void)baudrate;
}
void ftdi_if_fifo_write(struct ftdi_interface* itf, const uint8_t* data, size_t datasize) {
(void)itf; (void)data; (void)datasize;
}
size_t ftdi_if_fifo_read(struct ftdi_interface* itf, uint8_t* data, size_t maxsize) {
(void)itf; (void)data; (void)maxsize;
return 0;
}

315
bsp/rp2040/m_ftdi/ftdi_hw.c Normal file
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@ -0,0 +1,315 @@
// vim: set et:
/* include order matters here */
#include <hardware/dma.h>
#include <hardware/gpio.h>
#include <hardware/irq.h>
#include <hardware/pio.h>
#include <hardware/structs/dma.h>
#include "m_ftdi/ftdi_hw.h"
struct ftdi_hw itf_bsp_data[2];
static int piosm_to_dreq(int pio, int sm) {
return DREQ_PIO0_TX0 + pio * 8 + sm;
}
static void ftdihw_dma_isr();
void ftdihw_init(struct ftdi_hw* fr, struct ftdi_interface* itf) {
memset(fr, 0, sizeof *fr);
fr->itf = itf;
fr->pio = ftdihw_itf_to_pio(itf);
fr->pinbase = ftdihw_itf_to_base(itf);
fr->rx.prg_off = 0xff;
fr->rx.piosm = 0xff;
fr->rx.dmach = 0xff;
fr->tx.prg_off = 0xff;
fr->tx.piosm = 0xff;
fr->tx.dmach = 0xff;
// we start with nothing to write out, but we can start filling a buffer already
fr->rx.dmabuf_dend = sizeof(fr->dma_in_buf) - 1;
irq_set_enabled(DMA_IRQ_0 + (fr->itf->index & 1), false);
irq_set_exclusive_handler(DMA_IRQ_0 + (fr->itf->index & 1), ftdihw_dma_isr);
irq_set_enabled(DMA_IRQ_0 + (fr->itf->index & 1), true);
}
void ftdihw_deinit(struct ftdi_hw* hw) {
irq_set_enabled(DMA_IRQ_0 + (hw->itf->index & 1), false);
irq_remove_handler(DMA_IRQ_0 + (hw->itf->index & 1), ftdihw_dma_isr);
}
bool ftdihw_dma_ch_init(struct ftdi_hw_ch* ch, struct ftdi_hw* hw, const void* prg) {
int off, sm, dmach;
sm = pio_claim_unused_sm(hw->pio, false);
if (sm == -1) return false;
dmach = dma_claim_unused_channel(false);
if (dmach == -1) {
pio_sm_unclaim(hw->pio, sm);
return false;
}
if (!pio_can_add_program(hw->pio, prg)) {
dma_channel_unclaim(dmach);
pio_sm_unclaim(hw->pio, sm);
return false;
}
off = pio_add_program(hw->pio, prg);
ch->prg = prg;
ch->prg_off = off;
ch->piosm = sm;
ch->dmach = dmach;
return true;
}
void ftdihw_dma_ch_deinit(struct ftdi_hw_ch* ch, struct ftdi_hw* hw) {
dma_channel_unclaim(ch->dmach);
pio_sm_set_enabled(hw->pio, ch->piosm, false);
pio_sm_unclaim(hw->pio, ch->piosm);
pio_remove_program(hw->pio, ch->prg, ch->prg_off);
ch->dmach = 0xff;
ch->piosm = 0xff;
ch->prg_off = 0xff;
ch->prg = NULL;
}
void ftdihw_dma_rx_setup(struct ftdi_hw* hw, bool start) {
dma_irqn_set_channel_enabled(hw->itf->index & 1, hw->rx.dmach, false);
if (hw->rx.dmabuf_dend == hw->rx.dmabuf_dstart)
--hw->rx.dmabuf_dend; // mod 256 automatically
dma_channel_config dcfg = dma_channel_get_default_config(hw->rx.dmach);
channel_config_set_read_increment(&dcfg, false);
channel_config_set_write_increment(&dcfg, true);
channel_config_set_dreq(&dcfg, piosm_to_dreq(hw->itf->index, hw->rx.piosm));
channel_config_set_transfer_data_size(&dcfg, DMA_SIZE_8);
channel_config_set_ring(&dcfg, true, 8); // 1<<8 -sized ring buffer on write end
dma_channel_configure(hw->rx.dmach, &dcfg,
&hw->dma_in_buf[hw->rx.dmabuf_dstart], &hw->pio->rxf[hw->rx.piosm],
(hw->rx.dmabuf_dend - hw->rx.dmabuf_dstart) % sizeof(hw->dma_in_buf), start);
dma_irqn_set_channel_enabled(hw->itf->index & 1, hw->rx.dmach, true);
}
void ftdihw_dma_rx_stop(struct ftdi_hw* hw) {
dma_irqn_set_channel_enabled(hw->itf->index & 1, hw->rx.dmach, false);
dma_channel_abort(hw->rx.dmach);
}
void ftdihw_dma_tx_setup(struct ftdi_hw* hw, bool start) {
dma_irqn_set_channel_enabled(hw->itf->index & 1, hw->tx.dmach, false);
if (hw->tx.dmabuf_dend == hw->tx.dmabuf_dstart)
--hw->tx.dmabuf_dend; // mod 256 automatically
dma_channel_config dcfg = dma_channel_get_default_config(hw->tx.dmach);
channel_config_set_read_increment(&dcfg, true);
channel_config_set_write_increment(&dcfg, false);
channel_config_set_dreq(&dcfg, piosm_to_dreq(hw->itf->index, hw->tx.piosm));
channel_config_set_transfer_data_size(&dcfg, DMA_SIZE_8);
channel_config_set_ring(&dcfg, false, 8); // 1<<8 -sized ring buffer on read end
dma_channel_configure(hw->tx.dmach, &dcfg,
&hw->pio->txf[hw->tx.piosm], &hw->dma_out_buf[hw->tx.dmabuf_dstart],
(hw->tx.dmabuf_dend - hw->tx.dmabuf_dstart) % sizeof(hw->dma_out_buf), start);
dma_irqn_set_channel_enabled(hw->itf->index & 1, hw->tx.dmach, true);
}
void ftdihw_dma_tx_stop(struct ftdi_hw* hw) {
dma_irqn_set_channel_enabled(hw->itf->index & 1, hw->tx.dmach, false);
dma_channel_abort(hw->tx.dmach);
}
size_t ftdihw_dma_read(struct ftdi_hw* hw, uint8_t* dest, size_t maxsize) {
// DMA is sending data from PIO to between dstart and dend, and is planned
// to continue up to dataend. when it finishes an xfer (between dstart and
// dend), it looks at dataend to see if it should continue sending more. if
// not, it pauses itself as tehre's no more work to be done, and sets a
// FIFO overrun flag in the FTDI error things
//
// here we read from dataend to dstart, careful not to touch the area the
// DMA is currently writing to (while holding the channel paused), and then
// moving the dataend marker. the channel is always reenabled, as either it
// was busy and now it has more space to put data in, or needs to be
// restarted as there is space now
//
// pausing the DMA channel is ok as it'll pause the PIO FIFO a bit, but
// nothing drastic
if (maxsize == 0) return 0;
size_t rv = 0;
// TODO: make time between pause & resume shorter by moving stuff around?
bool wasbusy = dma_hw->ch[hw->rx.dmach].ctrl_trig & DMA_CH0_CTRL_TRIG_BUSY_BITS;
hw_clear_bits(&dma_hw->ch[hw->rx.dmach].ctrl_trig, DMA_CH0_CTRL_TRIG_EN_BITS); // pause (also prevents IRQ)
// dstart can get modified by the IRQ; IRQ reads dataend
uint8_t dstart = hw->rx.dmabuf_dstart, dataend = hw->rx.dmabuf_dataend;
if (dataend > dstart) dstart += sizeof(hw->dma_in_buf);
// nothing ready yet - bail out
if (dstart == (dataend + 1) % sizeof(hw->dma_in_buf)) {
goto END;
}
__compiler_memory_barrier();
// copy from data in ringbuffer that was read in by PIO
rv = (size_t)dstart - (size_t)dataend - 1;
if (rv > maxsize) rv = maxsize;
for (size_t i = 0; i < rv; ++i) {
dest[i] = hw->dma_in_buf[(dataend + i) % sizeof(hw->dma_in_buf)];
}
uint8_t dataend_new = (dataend + rv) % sizeof(hw->dma_in_buf);
hw->rx.dmabuf_dataend = dataend_new;
hw->itf->modemstat &= ~sio_modem_fifoerr;
END:
if (!wasbusy) {
hw->rx.dmabuf_dstart = hw->rx.dmabuf_dend; // not required to set in DMA hw, but need to keep track of it in code
hw->rx.dmabuf_dend = hw->rx.dmabuf_dataend;
ftdihw_dma_rx_setup(hw, true);
} else // if already busy easlier, simply reenable
hw_set_bits(&dma_hw->ch[hw->rx.dmach].ctrl_trig, DMA_CH0_CTRL_TRIG_EN_BITS); // resume (also reenables IRQ)
return rv;
return rv;
}
bool ftdihw_dma_write(struct ftdi_hw* hw, const uint8_t* src, size_t size) {
// DMA is sending data between dstart and dend to PIO, and is planned to
// continue up to dataend. when it finishes an xfer (between dstart and
// dend), it looks at dataned to see if it should continue sending more. if
// not, it pauses itself as there's no more work to be done
//
// here we insert some data in the ring buffer, careful to not overwrite
// what the DMA is currently transferring (while holding the channel
// paused), and then moving the dataend marker. the channel is always
// reenabled, as either it was busy and now has more work to do, or needs
// to be restarted as there's data now
//
// pausing the DMA channel is ok as it'll pause the PIO FIFO a bit, but
// nothing drastic
if (size >= 255) return false; // don't even bother
bool rv = true;
// TODO: make time between pause & resume shorter by moving stuff around?
bool wasbusy = dma_hw->ch[hw->tx.dmach].ctrl_trig & DMA_CH0_CTRL_TRIG_BUSY_BITS;
hw_clear_bits(&dma_hw->ch[hw->tx.dmach].ctrl_trig, DMA_CH0_CTRL_TRIG_EN_BITS); // pause (also prevents IRQ)
// dstart can get modified by the IRQ; IRQ reads dataend
uint8_t dstart = hw->tx.dmabuf_dstart, dataend = hw->tx.dmabuf_dataend;
if (dataend > dstart) dstart += sizeof(hw->dma_out_buf);
// no space to put it in - overrun error
if ((size_t)dstart - (size_t)dataend < size + 1) {
hw->itf->modemstat |= sio_modem_fifoerr;
rv = false;
goto END;
}
__compiler_memory_barrier();
// copy data to buffer, to be copied next
for (size_t i = 0; i < size; ++i) {
hw->dma_out_buf[(dataend + i) % sizeof(hw->dma_out_buf)] = src[i];
}
uint8_t dataend_new = (dataend + size) % sizeof(hw->dma_out_buf);
hw->tx.dmabuf_dataend = dataend_new;
hw->itf->modemstat &= ~sio_modem_temt;
END:
if (!wasbusy) {
hw->tx.dmabuf_dstart = hw->tx.dmabuf_dend; // not required to set in DMA hw, but need to keep track of it in code
hw->tx.dmabuf_dend = hw->tx.dmabuf_dataend;
ftdihw_dma_tx_setup(hw, true);
} else // if already busy easlier, simply reenable
hw_set_bits(&dma_hw->ch[hw->tx.dmach].ctrl_trig, DMA_CH0_CTRL_TRIG_EN_BITS); // resume (also reenables IRQ)
return rv;
}
void ftdihw_dma_rx_flush(struct ftdi_hw* hw) {
ftdihw_dma_rx_stop(hw);
hw->rx.dmabuf_dstart = 0;
hw->rx.dmabuf_dend = 0;
hw->rx.dmabuf_dataend = 0;
}
void ftdihw_dma_tx_flush(struct ftdi_hw* hw) {
ftdihw_dma_tx_stop(hw);
hw->tx.dmabuf_dstart = 0;
hw->tx.dmabuf_dend = 0;
hw->tx.dmabuf_dataend = 0;
}
static void ftdihw_dma_rx_irq(struct ftdi_hw* hw) {
// an rx DMA transfer has finished. if in the meantime (between DMA xfer
// start and now) more room has become available, restart the DMA channel
// to write to the new space instead. otherwise, if there's no more space
// left, we're in a data overrun condition, so don't restart, and set the
// relevant FTDI error flags
uint8_t dend = hw->rx.dmabuf_dend, dataend = hw->rx.dmabuf_dataend;
if (dend == dataend) {
// data overrun, stop stuff (until read() restarts the DMA)
hw->itf->modemstat |= sio_modem_fifoerr;
} else {
hw->rx.dmabuf_dstart = dend;
hw->rx.dmabuf_dend = dataend;
ftdihw_dma_rx_setup(hw, true);
}
}
static void ftdihw_dma_tx_irq(struct ftdi_hw* hw) {
// a tx DMA transfer has finished. if in the meantile (between DMA xfer
// start and now) more data has become available, restart the DMA channel
// to read from the new data instead. otherwise, if there's no more data to
// be read, we have nothing to do and we can leave the DMA channel in its
// idle state.
uint8_t dend = hw->tx.dmabuf_dend, dataend = hw->tx.dmabuf_dataend;
if (dend == dataend) {
// nothing to do
hw->itf->modemstat |= sio_modem_temt;
} else {
hw->tx.dmabuf_dstart = dend;
hw->tx.dmabuf_dend = dataend;
ftdihw_dma_tx_setup(hw, true);
}
}
static void ftdihw_dma_isr() {
// interrupt service routine: dispatch to functions above depending on INTS0
uint32_t flags = dma_hw->ints0;
uint32_t allflg = 1u << itf_bsp_data[0].rx.dmach;
allflg |= 1u << itf_bsp_data[0].tx.dmach;
allflg |= 1u << itf_bsp_data[1].rx.dmach;
allflg |= 1u << itf_bsp_data[1].tx.dmach;
for (size_t i = 0; (i < 2) && (flags & allflg); ++i) {
uint32_t flg = 1u << itf_bsp_data[i].rx.dmach;
if (flags & flg) {
flags &= ~flg;
dma_hw->ints0 = flg; // ack int
ftdihw_dma_rx_irq(&itf_bsp_data[i]);
}
flg = 1u << itf_bsp_data[i].tx.dmach;
if (flags & flg) {
flags &= ~flg;
dma_hw->ints0 = flg; // ack int
ftdihw_dma_tx_irq(&itf_bsp_data[i]);
}
}
}

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// vim: set et:
#ifndef FTDI_BASE_H_
#define FTDI_BASE_H_
#include <stdint.h>
#include <stdbool.h>
#include "m_ftdi/pinout.h"
#include "m_ftdi/ftdi.h"
struct ftdi_hw_ch {
const void* prg;
uint8_t prg_off, piosm, dmach;
volatile uint8_t dmabuf_dstart, dmabuf_dend, dmabuf_dataend;
};
struct ftdi_hw {
struct ftdi_interface* itf;
PIO pio;
struct ftdi_hw_ch rx, tx;
uint8_t pinbase;
volatile uint8_t dma_in_buf[256/*CFG_TUD_VENDOR_TX_BUFSIZE*/];
volatile uint8_t dma_out_buf[256/*CFG_TUD_VENDOR_RX_BUFSIZE*/];
};
extern struct ftdi_hw itf_bsp_data[2];
void ftdihw_init(struct ftdi_hw* fr, struct ftdi_interface* itf);
void ftdihw_deinit(struct ftdi_hw* fr);
bool ftdihw_dma_ch_init(struct ftdi_hw_ch* ch, struct ftdi_hw* fr, const void* prg);
void ftdihw_dma_ch_deinit(struct ftdi_hw_ch* fr, struct ftdi_hw* hw);
void ftdihw_dma_rx_setup(struct ftdi_hw* fr, bool start);
void ftdihw_dma_rx_stop(struct ftdi_hw* fr);
void ftdihw_dma_tx_setup(struct ftdi_hw* fr, bool start);
void ftdihw_dma_tx_stop(struct ftdi_hw* fr);
size_t ftdihw_dma_read(struct ftdi_hw* fr, uint8_t* dest, size_t maxsize);
bool ftdihw_dma_write(struct ftdi_hw* fr, const uint8_t* src, size_t size);
void ftdihw_dma_rx_flush(struct ftdi_hw* fr);
void ftdihw_dma_tx_flush(struct ftdi_hw* fr);
static inline int ftdihw_idx_to_base(int itf_idx) {
return itf_idx ? PINOUT_ITF_B_BASE : PINOUT_ITF_A_BASE;
}
static inline int ftdihw_itf_to_base(struct ftdi_interface* itf) {
return ftdihw_idx_to_base(itf->index);
}
static inline PIO ftdihw_idx_to_pio(int itf_idx) {
return itf_idx ? PINOUT_ITF_A_PIO : PINOUT_ITF_B_PIO;
}
static inline PIO ftdihw_itf_to_pio(struct ftdi_interface* itf) {
return ftdihw_idx_to_pio(itf->index);
}
static inline struct ftdi_hw* ftdihw_idx_to_hw(int itf_idx) {
return &itf_bsp_data[itf_idx & 1];
}
static inline struct ftdi_hw* ftdihw_itf_to_hw(struct ftdi_interface* itf) {
return ftdihw_idx_to_hw(itf->index);
}
#endif

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// vim: set et:
#include <hardware/pio.h>
#include "m_ftdi/ftdi.h"
#include "m_ftdi/ftdi_hw.h"
static void init_mode(struct ftdi_interface* itf, enum ftdi_mode mode) {
switch (mode) {
case ftmode_uart: ftdi_if_uart_init(itf); ftdi_if_uart_set_baudrate(itf, itf->baudrate); break;
case ftmode_mpsse: ftdi_if_mpsse_init(itf); ftdi_if_mpsse_set_baudrate(itf, itf->baudrate); break;
case ftmode_asyncbb: ftdi_if_asyncbb_init(itf); ftdi_if_asyncbb_set_baudrate(itf, itf->baudrate); break;
case ftmode_syncbb: ftdi_if_syncbb_init(itf); ftdi_if_syncbb_set_baudrate(itf, itf->baudrate); break;
case ftmode_mcuhost: ftdi_if_mcuhost_init(itf); ftdi_if_mcuhost_set_baudrate(itf, itf->baudrate); break;
case ftmode_fifo: ftdi_if_fifo_init(itf); ftdi_if_fifo_set_baudrate(itf, itf->baudrate); break;
case ftmode_cpufifo: ftdi_if_cpufifo_init(itf); ftdi_if_cpufifo_set_baudrate(itf, itf->baudrate); break;
default: break;
}
}
static void deinit_mode(struct ftdi_interface* itf, enum ftdi_mode mode) {
switch (mode) {
case ftmode_uart: ftdi_if_uart_deinit(itf); break;
case ftmode_mpsse: ftdi_if_mpsse_deinit(itf); break;
case ftmode_asyncbb: ftdi_if_asyncbb_deinit(itf); break;
case ftmode_syncbb: ftdi_if_syncbb_deinit(itf); break;
case ftmode_mcuhost: ftdi_if_mcuhost_deinit(itf); break;
case ftmode_fifo: ftdi_if_fifo_deinit(itf); break;
case ftmode_cpufifo: ftdi_if_cpufifo_deinit(itf); break;
default: break;
}
}
void ftdi_if_init(struct ftdi_interface* itf) {
struct ftdi_hw* hw = ftdihw_itf_to_hw(itf);
ftdihw_init(hw, itf);
init_mode(itf, ftdi_if_get_mode(itf));
}
void ftdi_if_deinit(struct ftdi_interface* itf) {
deinit_mode(itf, ftdi_if_get_mode(itf));
struct ftdi_hw* hw = ftdihw_itf_to_hw(itf);
ftdihw_deinit(hw);
}
void ftdi_if_set_modemctrl(struct ftdi_interface* itf, uint8_t mask, uint8_t data) {
(void)itf; (void)mask; (void)data;
// TODO: what's this?
}
void ftdi_if_set_baudrate(struct ftdi_interface* itf, uint32_t baudrate) {
switch (ftdi_if_get_mode(itf)) {
case ftmode_uart: ftdi_if_uart_set_baudrate(itf, baudrate); break;
case ftmode_mpsse: ftdi_if_mpsse_set_baudrate(itf, baudrate); break;
case ftmode_asyncbb: ftdi_if_asyncbb_set_baudrate(itf, baudrate); break;
case ftmode_syncbb: ftdi_if_syncbb_set_baudrate(itf, baudrate); break;
case ftmode_mcuhost: ftdi_if_mcuhost_set_baudrate(itf, baudrate); break;
case ftmode_fifo: ftdi_if_fifo_set_baudrate(itf, baudrate); break;
case ftmode_cpufifo: ftdi_if_cpufifo_set_baudrate(itf, baudrate); break;
default: break;
}
}
enum ftdi_sio_modemstat ftdi_if_poll_modemstat(struct ftdi_interface* itf) {
(void)itf;
return sio_modem_cts | sio_modem_dts; // TODO: use this to read part of UART flow ctrl?
}
void ftdi_if_set_eventchar(struct ftdi_interface* itf, bool enable, uint8_t evchar) {
(void)itf; (void)enable; (void)evchar;
// TODO: when is this used? bitmode0-only? also ftd2xx headers make this look like its not just an "event on char" thing
}
void ftdi_if_set_errorchar(struct ftdi_interface* itf, bool enable, uint8_t erchar) {
(void)itf; (void)enable; (void)erchar;
// TODO: when is this used? bitmode0-only? also ftd2xx headers make this look like its not just an "error on char" thing
}
uint8_t ftdi_if_read_pins(struct ftdi_interface* itf) {
(void)itf;
return 0; // TODO: which pins does this return?
}
void ftdi_if_set_bitbang(struct ftdi_interface* itf, uint8_t dirmask,
enum ftdi_sio_bitmode bitmode, uint8_t olddir, enum ftdi_sio_bitmode oldmode) {
if (bitmode == oldmode && dirmask == olddir) return; // nothing to do
deinit_mode(itf, ftdi_get_mode_of(oldmode, itf->index ? FTDI_EEP_IFB_MODE : FTDI_EEP_IFA_MODE));
init_mode(itf, ftdi_if_get_mode(itf));
}
void ftdi_if_sio_reset(struct ftdi_interface* itf) { (void)itf; /* TODO: ? */ }
void ftdi_if_sio_tciflush(struct ftdi_interface* itf) {
(void)itf; /* TODO: ? */
}
void ftdi_if_sio_tcoflush(struct ftdi_interface* itf) {
(void)itf; /* TODO: ? */
}
void ftdi_if_set_latency(struct ftdi_interface* itf, uint8_t latency) { (void)itf; (void)latency; /* TODO: ? */ }
uint8_t ftdi_if_get_latency(struct ftdi_interface* itf) { return itf->latency; /* TODO: ? */ }

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;
; Copyright (c) 2020 Raspberry Pi (Trading) Ltd.
;
; SPDX-License-Identifier: BSD-3-Clause
;
.program ftdi_uart_rx_mini
; Minimum viable 8n1 UART receiver. Wait for the start bit, then sample 8 bits
; with the correct timing.
; IN pin 0 is mapped to the GPIO used as UART RX.
; Autopush must be enabled, with a threshold of 8.
wait 0 pin 0 ; Wait for start bit
set x, 7 [10] ; Preload bit counter, delay until eye of first data bit
bitloop: ; Loop 8 times
in pins, 1 ; Sample data
jmp x-- bitloop [6] ; Each iteration is 8 cycles
% c-sdk {
#include "hardware/clocks.h"
#include "hardware/gpio.h"
static inline void ftdi_uart_rx_mini_program_init(PIO pio, uint sm, uint offset, uint pin, uint baud) {
pio_sm_set_consecutive_pindirs(pio, sm, pin, 1, false);
pio_gpio_init(pio, pin);
gpio_pull_up(pin);
pio_sm_config c = ftdi_uart_rx_mini_program_get_default_config(offset);
sm_config_set_in_pins(&c, pin); // for WAIT, IN
// Shift to right, autopush enabled
sm_config_set_in_shift(&c, true, true, 8);
sm_config_set_fifo_join(&c, PIO_FIFO_JOIN_RX);
// SM transmits 1 bit per 8 execution cycles.
float div = (float)clock_get_hz(clk_sys) / (8 * baud);
sm_config_set_clkdiv(&c, div);
pio_sm_init(pio, sm, offset, &c);
pio_sm_set_enabled(pio, sm, true);
}
%}
.program ftdi_uart_rx
; Slightly more fleshed-out 8n1 UART receiver which handles framing errors and
; break conditions more gracefully.
; IN pin 0 and JMP pin are both mapped to the GPIO used as UART RX.
start:
wait 0 pin 0 ; Stall until start bit is asserted
set x, 7 [10] ; Preload bit counter, then delay until halfway through
bitloop: ; the first data bit (12 cycles incl wait, set).
in pins, 1 ; Shift data bit into ISR
jmp x-- bitloop [6] ; Loop 8 times, each loop iteration is 8 cycles
jmp pin good_stop ; Check stop bit (should be high)
irq 4 rel ; Either a framing error or a break. Set a sticky flag,
wait 1 pin 0 ; and wait for line to return to idle state.
jmp start ; Don't push data if we didn't see good framing.
good_stop: ; No delay before returning to start; a little slack is
push ; important in case the TX clock is slightly too fast.
% c-sdk {
static inline void ftdi_uart_rx_program_init(PIO pio, uint sm, uint offset, uint pin, uint baud) {
pio_sm_set_consecutive_pindirs(pio, sm, pin, 1, false);
pio_gpio_init(pio, pin);
gpio_pull_up(pin);
pio_sm_config c = ftdi_uart_rx_program_get_default_config(offset);
sm_config_set_in_pins(&c, pin); // for WAIT, IN
sm_config_set_jmp_pin(&c, pin); // for JMP
// Shift to right, autopull disabled
sm_config_set_in_shift(&c, true, false, 32);
// Deeper FIFO as we're not doing any TX
sm_config_set_fifo_join(&c, PIO_FIFO_JOIN_RX);
// SM transmits 1 bit per 8 execution cycles.
float div = (float)clock_get_hz(clk_sys) / (8 * baud);
sm_config_set_clkdiv(&c, div);
pio_sm_init(pio, sm, offset, &c);
pio_sm_set_enabled(pio, sm, true);
}
static inline char ftdi_uart_rx_program_getc(PIO pio, uint sm) {
// 8-bit read from the uppermost byte of the FIFO, as data is left-justified
io_rw_8 *rxfifo_shift = (io_rw_8*)&pio->rxf[sm] + 3;
while (pio_sm_is_rx_fifo_empty(pio, sm))
tight_loop_contents();
return (char)*rxfifo_shift;
}
%}

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;
; Copyright (c) 2020 Raspberry Pi (Trading) Ltd.
;
; SPDX-License-Identifier: BSD-3-Clause
;
.program ftdi_uart_tx
.side_set 1 opt
; An 8n1 UART transmit program.
; OUT pin 0 and side-set pin 0 are both mapped to UART TX pin.
pull side 1 [7] ; Assert stop bit, or stall with line in idle state
set x, 7 side 0 [7] ; Preload bit counter, assert start bit for 8 clocks
bitloop: ; This loop will run 8 times (8n1 UART)
out pins, 1 ; Shift 1 bit from OSR to the first OUT pin
jmp x-- bitloop [6] ; Each loop iteration is 8 cycles.
% c-sdk {
#include "hardware/clocks.h"
static inline void ftdi_uart_tx_program_init(PIO pio, uint sm, uint offset, uint pin_tx, uint baud) {
// Tell PIO to initially drive output-high on the selected pin, then map PIO
// onto that pin with the IO muxes.
pio_sm_set_pins_with_mask(pio, sm, 1u << pin_tx, 1u << pin_tx);
pio_sm_set_pindirs_with_mask(pio, sm, 1u << pin_tx, 1u << pin_tx);
pio_gpio_init(pio, pin_tx);
pio_sm_config c = ftdi_uart_tx_program_get_default_config(offset);
// OUT shifts to right, no autopull
sm_config_set_out_shift(&c, true, false, 32);
// We are mapping both OUT and side-set to the same pin, because sometimes
// we need to assert user data onto the pin (with OUT) and sometimes
// assert constant values (start/stop bit)
sm_config_set_out_pins(&c, pin_tx, 1);
sm_config_set_sideset_pins(&c, pin_tx);
// We only need TX, so get an 8-deep FIFO!
sm_config_set_fifo_join(&c, PIO_FIFO_JOIN_TX);
// SM transmits 1 bit per 8 execution cycles.
float div = (float)clock_get_hz(clk_sys) / (8 * baud);
sm_config_set_clkdiv(&c, div);
pio_sm_init(pio, sm, offset, &c);
pio_sm_set_enabled(pio, sm, true);
}
static inline void ftdi_uart_tx_program_putc(PIO pio, uint sm, char c) {
pio_sm_put_blocking(pio, sm, (uint32_t)c);
}
static inline void ftdi_uart_tx_program_puts(PIO pio, uint sm, const char *s) {
while (*s)
ftdi_uart_tx_program_putc(pio, sm, *s++);
}
%}

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// vim: set et:
#include "m_ftdi/ftdi.h"
void ftdi_if_mcuhost_init(struct ftdi_interface* itf) {
(void)itf;
}
void ftdi_if_mcuhost_deinit(struct ftdi_interface* itf) {
(void)itf;
}
void ftdi_if_mcuhost_set_baudrate(struct ftdi_interface* itf, uint32_t baudrate) {
(void)itf; (void)baudrate;
}
void ftdi_if_mcuhost_flush(struct ftdi_interface* itf) {
(void)itf;
}
void ftdi_if_mcuhost_wait_io(struct ftdi_interface* itf, bool level) {
(void)itf; (void)level;
}
uint8_t ftdi_if_mcuhost_read8(struct ftdi_interface* itf, uint8_t addr) {
(void)itf; (void)addr;
return 0;
}
uint8_t ftdi_if_mcuhost_read16(struct ftdi_interface* itf, uint16_t addr) {
(void)itf; (void)addr;
return 0;
}
void ftdi_if_mcuhost_write8(struct ftdi_interface* itf, uint8_t addr, uint8_t value) {
(void)itf; (void)addr; (void)value;
}
void ftdi_if_mcuhost_write16(struct ftdi_interface* itf, uint16_t addr, uint8_t value) {
(void)itf; (void)addr; (void)value;
}

82
bsp/rp2040/m_ftdi/mpsse.c Normal file
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// vim: set et:
#include "m_ftdi/ftdi.h"
void ftdi_if_mpsse_init(struct ftdi_interface* itf) {
(void)itf;
}
void ftdi_if_mpsse_deinit(struct ftdi_interface* itf) {
(void)itf;
}
void ftdi_if_mpsse_set_baudrate(struct ftdi_interface* itf, uint32_t baudrate) {
(void)itf; (void)baudrate;
}
void ftdi_if_mpsse_flush(struct ftdi_interface* itf) {
(void)itf;
}
void ftdi_if_mpsse_wait_io(struct ftdi_interface* itf, bool level) {
(void)itf; (void)level;
}
void ftdi_if_mpsse_set_dirval_lo(struct ftdi_interface* itf, uint8_t dir, uint8_t val) {
(void)itf; (void)dir; (void)val;
}
void ftdi_if_mpsse_set_dirval_hi(struct ftdi_interface* itf, uint8_t dir, uint8_t val) {
(void)itf; (void)dir; (void)val;
}
uint8_t ftdi_if_mpsse_read_lo(struct ftdi_interface* itf) {
(void)itf;
return 0;
}
uint8_t ftdi_if_mpsse_read_hi(struct ftdi_interface* itf) {
(void)itf;
return 0;
}
void ftdi_if_mpsse_loopback(struct ftdi_interface* itf, bool enable) {
(void)itf; (void)enable;
}
void ftdi_if_mpsse_set_clkdiv(struct ftdi_interface* itf, uint16_t div) {
(void)itf; (void)div;
}
uint8_t ftdi_if_mpsse_xfer_bits(struct ftdi_interface* itf, int flags, size_t nbits, uint8_t value) {
(void)itf; (void)flags; (void)nbits; (void)value;
return 0;
}
void ftdi_if_mpsse_xfer_bytes(struct ftdi_interface* itf, int flags, size_t nbytes, uint8_t* dst, const uint8_t* src) {
(void)itf; (void)flags; (void)nbytes; (void)dst; (void)src;
}
uint8_t ftdi_if_mpsse_tms_xfer(struct ftdi_interface* itf, int flags, size_t nbits, uint8_t value) {
(void)itf; (void)flags; (void)nbits; (void)value;
return 0;
}
void ftdi_if_mpsse_div5(struct ftdi_interface* itf, bool enable) {
(void)itf; (void)enable;
}
void ftdi_if_mpsse_data_3ph(struct ftdi_interface* itf, bool enable) {
(void)itf; (void)enable;
}
void ftdi_if_mpsse_adaptive(struct ftdi_interface* itf, bool enable) {
(void)itf; (void)enable;
}
void ftdi_if_mpsse_clockonly(struct ftdi_interface* itf, uint32_t cycles) {
(void)itf; (void)cycles;
}
void ftdi_if_mpsse_clock_wait_io(struct ftdi_interface* itf, bool level) {
(void)itf; (void)level;
}
void ftdi_if_mpsse_clockonly_wait_io(struct ftdi_interface* itf, bool level, uint32_t cycles) {
(void)itf; (void)level; (void)cycles;
}
void ftdi_if_mpsse_hi_is_tristate(struct ftdi_interface* itf, uint16_t pinmask) {
(void)itf; (void)pinmask;
}

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bsp/rp2040/m_ftdi/pinout.h Normal file
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#ifndef BSP_PINOUT_M_FTDI_H_
#define BSP_PINOUT_M_FTDI_H_
/* NOTE: no C code here! needs to be include-able from PIO asm! */
#define PINOUT_ITF_A_BASE 2
#define PINOUT_ITF_B_BASE 14
// TODO: ? or just different SMs on the same PIO? would complicate things tho
#define PINOUT_ITF_A_PIO pio0
#define PINOUT_ITF_B_PIO pio1
#define PINOUT_DBUS0_OFF 0
#define PINOUT_DBUS1_OFF 1
#define PINOUT_DBUS2_OFF 2
#define PINOUT_DBUS3_OFF 3
#define PINOUT_DBUS4_OFF 4
#define PINOUT_DBUS5_OFF 5
#define PINOUT_DBUS6_OFF 6
#define PINOUT_DBUS7_OFF 7
#define PINOUT_CBUS0_OFF 8
#define PINOUT_CBUS1_OFF 9
#define PINOUT_CBUS2_OFF 10
#define PINOUT_CBUS3_OFF 11
#define PINOUT_UART_TXD_OFF 0
#define PINOUT_UART_RXD_OFF 1
#define PINOUT_UART_nRTS_OFF 2
#define PINOUT_UART_nCTS_OFF 3
#define PINOUT_UART_nDTR_OFF 4
#define PINOUT_UART_nDSR_OFF 5
#define PINOUT_UART_nDCD_OFF 6
#define PINOUT_UART_nRI_OFF 7
#define PINOUT_UART_TXDEN_OFF 8
#define PINOUT_UART_nSLEEP_OFF 9
#define PINOUT_UART_nRXLED_OFF 10
#define PINOUT_UART_nTXLED_OFF 11
#define PINOUT_FIFO_D0_OFF 0
#define PINOUT_FIFO_D1_OFF 1
#define PINOUT_FIFO_D2_OFF 2
#define PINOUT_FIFO_D3_OFF 3
#define PINOUT_FIFO_D4_OFF 4
#define PINOUT_FIFO_D5_OFF 5
#define PINOUT_FIFO_D6_OFF 6
#define PINOUT_FIFO_D7_OFF 7
#define PINOUT_FIFO_nRXF_OFF 8
#define PINOUT_FIFO_nTXE_OFF 9
#define PINOUT_FIFO_nRD_OFF 10
#define PINOUT_FIFO_WR_OFF 11
#define PINOUT_BBANG_D0_OFF 0
#define PINOUT_BBANG_D1_OFF 1
#define PINOUT_BBANG_D2_OFF 2
#define PINOUT_BBANG_D3_OFF 3
#define PINOUT_BBANG_D4_OFF 4
#define PINOUT_BBANG_D5_OFF 5
#define PINOUT_BBANG_D6_OFF 6
#define PINOUT_BBANG_D7_OFF 7
#define PINOUT_BBANG_nWR0_OFF 8
#define PINOUT_BBANG_nRD0_OFF 9
#define PINOUT_BBANG_nWR1_OFF 10
#define PINOUT_BBANG_nRD1_OFF 11
#define PINOUT_MPSSE_TCK_CK_OFF 0
#define PINOUT_MPSSE_TDI_DO_OFF 1
#define PINOUT_MPSSE_TDO_DI_OFF 2
#define PINOUT_MPSSE_TMS_CS_OFF 3
#define PINOUT_MPSSE_GPIOL0_OFF 4
#define PINOUT_MPSSE_GPIOL1_OFF 5
#define PINOUT_MPSSE_GPIOL2_OFF 6
#define PINOUT_MPSSE_GPIOL3_OFF 7
#define PINOUT_MPSSE_GPIOH0_OFF 8
#define PINOUT_MPSSE_GPIOH1_OFF 9
#define PINOUT_MPSSE_GPIOH2_OFF 10
#define PINOUT_MPSSE_GPIOH3_OFF 11
#define PINOUT_MCUHOST_AD0_OFF 0
#define PINOUT_MCUHOST_AD1_OFF 1
#define PINOUT_MCUHOST_AD2_OFF 2
#define PINOUT_MCUHOST_AD3_OFF 3
#define PINOUT_MCUHOST_AD4_OFF 4
#define PINOUT_MCUHOST_AD5_OFF 5
#define PINOUT_MCUHOST_AD6_OFF 6
#define PINOUT_MCUHOST_AD7_OFF 7
#define PINOUT_MCUHOST_IO0_OFF 8
#define PINOUT_MCUHOST_IO1_OFF 9
#define PINOUT_MCUHOST_IORDY_OFF 10
#define PINOUT_MCUHOST_OSC_OFF 11
// ---
#define PINOUT_MCUHOST_A8_OFF 0
#define PINOUT_MCUHOST_A9_OFF 1
#define PINOUT_MCUHOST_AA_OFF 2
#define PINOUT_MCUHOST_AB_OFF 3
#define PINOUT_MCUHOST_AC_OFF 4
#define PINOUT_MCUHOST_AD_OFF 5
#define PINOUT_MCUHOST_AE_OFF 6
#define PINOUT_MCUHOST_AF_OFF 7
#define PINOUT_MCUHOST_nCS_OFF 8
#define PINOUT_MCUHOST_ALE_OFF 9
#define PINOUT_MCUHOST_nRD_OFF 10
#define PINOUT_MCUHOST_nWR_OFF 11
#define PINOUT_CPUFIFO_D0_OFF 0
#define PINOUT_CPUFIFO_D1_OFF 1
#define PINOUT_CPUFIFO_D2_OFF 2
#define PINOUT_CPUFIFO_D3_OFF 3
#define PINOUT_CPUFIFO_D4_OFF 4
#define PINOUT_CPUFIFO_D5_OFF 5
#define PINOUT_CPUFIFO_D6_OFF 6
#define PINOUT_CPUFIFO_D7_OFF 7
#define PINOUT_CPUFIFO_nCS_OFF 8
#define PINOUT_CPUFIFO_A0_OFF 9
#define PINOUT_CPUFIFO_nRD_OFF 10
#define PINOUT_CPUFIFO_nWR_OFF 11
#endif

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@ -0,0 +1,22 @@
// vim: set et:
#include "m_ftdi/ftdi.h"
void ftdi_if_syncbb_init(struct ftdi_interface* itf) {
(void)itf;
}
void ftdi_if_syncbb_deinit(struct ftdi_interface* itf) {
(void)itf;
}
void ftdi_if_syncbb_set_baudrate(struct ftdi_interface* itf, uint32_t baudrate) {
(void)itf; (void)baudrate;
}
void ftdi_if_syncbb_write(struct ftdi_interface* itf, const uint8_t* data, size_t datasize) {
}
size_t ftdi_if_syncbb_read(struct ftdi_interface* itf, uint8_t* data, size_t maxsize) {
return 0;
}

143
bsp/rp2040/m_ftdi/uart.c Normal file
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@ -0,0 +1,143 @@
// vim: set et:
#include <hardware/dma.h>
#include <hardware/gpio.h>
#include <hardware/pio.h>
#include <hardware/structs/dma.h>
#include "m_ftdi/pinout.h"
#include "m_ftdi/ftdi_hw.h"
#include "ftdi_uart_rx.pio.h"
#include "ftdi_uart_tx.pio.h"
struct uart_state {
uint32_t baudrate;
bool enabled;
};
static struct uart_state state[2] = {
(struct uart_state){ .baudrate = 115200, .enabled = false },
(struct uart_state){ .baudrate = 115200, .enabled = false },
};
#define STATEOF(itf) (state[(itf)->index & 1])
// set up PIO->dma_in_buf DMA:
// * src=pio dst=buf 8bit 256words pacing=pio
// * IRQ: set overrun bit
// * start it
// * SETUP AT MODE ENTER, STOP AT MODE EXIT
//
// set up dma_out_buf->PIO DMA:
// * src=buf dst=pio 8bit <num>words pacing=pio
// * ~~no IRQ I think?~~ IRQ: next ringbuffer part (see below)
// * DO NOT start it on mode enter!
// * STOP AT MODE EXIT
//
// read routine:
// * abort DMA
// * copy data from dma_in_buf (read xfer len? == remaining of 256 bytes)
// * resetup & start DMA:
//
// write routine:
// * if DMA running: set overrun bit, bail out?
// * should use ringbuffer-like structure
// * pointers: dma start, dma end, data end (after dma, contiguous)
// * dma end can be calculated from DMA MMIO, but, race conditions so no
// * use DMA IRQ for next block (and wraparound: dma cannot do wraparound manually)
// * do not start next block if data end == dma start
// * can we set DMA xfer len while in-flight? datasheet p92 2.5.1: nope. sad
// * only bail out when data end == dma start - 1
// * copy data to dma_out_buf
// * set up & start DMA
//
// * what with buffers larger than 256 bytes?
// * just drop for now ig
// * what is the actual FTDI buffer size??
// * device-dependent so aaaa
// * which bits get set on errors?
// * do TCIFLUSH/TCOFLUSH influence these buffers, or only the USB proto
// handling buffers?
void ftdi_if_uart_init(struct ftdi_interface* itf) {
if (STATEOF(itf).enabled) return; // shrug
struct ftdi_hw* hw = ftdihw_itf_to_hw(itf);
if (!ftdihw_dma_ch_init(&hw->rx, hw, &ftdi_uart_rx_program)) return;
if (!ftdihw_dma_ch_init(&hw->tx, hw, &ftdi_uart_tx_program)) {
ftdihw_dma_ch_deinit(&hw->rx, hw);
return;
}
int pin_rx = hw->pinbase + PINOUT_UART_RXD_OFF,
pin_tx = hw->pinbase + PINOUT_UART_TXD_OFF;
ftdi_uart_rx_program_init(hw->pio, hw->rx.piosm, hw->rx.prg_off,
pin_rx, STATEOF(itf).baudrate);
ftdi_uart_tx_program_init(hw->pio, hw->tx.piosm, hw->tx.prg_off,
pin_tx, STATEOF(itf).baudrate);
gpio_set_function(pin_rx, GPIO_FUNC_PIO0 + itf->index);
gpio_set_function(pin_tx, GPIO_FUNC_PIO0 + itf->index);
ftdihw_dma_rx_setup(hw, true);
ftdihw_dma_tx_setup(hw, false);
STATEOF(itf).enabled = true;
}
void ftdi_if_uart_deinit(struct ftdi_interface* itf) {
if (!STATEOF(itf).enabled) return; // shrug
struct ftdi_hw* hw = ftdihw_itf_to_hw(itf);
int pin_rx = hw->pinbase + PINOUT_UART_RXD_OFF,
pin_tx = hw->pinbase + PINOUT_UART_TXD_OFF;
ftdihw_dma_rx_flush(hw);
ftdihw_dma_tx_flush(hw);
ftdihw_dma_ch_deinit(&hw->rx, hw);
ftdihw_dma_ch_deinit(&hw->tx, hw);
gpio_set_function(pin_rx, GPIO_FUNC_NULL);
gpio_set_function(pin_tx, GPIO_FUNC_NULL);
gpio_set_pulls(pin_rx, false, false);
gpio_set_pulls(pin_tx, false, false);
STATEOF(itf).enabled = false;
}
void ftdi_if_uart_set_baudrate(struct ftdi_interface* itf, uint32_t baudrate) {
if (!STATEOF(itf).enabled) return;
struct ftdi_hw* hw = ftdihw_itf_to_hw(itf);
int pin_rx = ftdihw_itf_to_base(itf) + PINOUT_UART_RXD_OFF,
pin_tx = ftdihw_itf_to_base(itf) + PINOUT_UART_TXD_OFF;
ftdi_uart_rx_program_init(hw->pio, hw->rx.piosm, hw->rx.prg_off, pin_rx, baudrate);
ftdi_uart_tx_program_init(hw->pio, hw->tx.piosm, hw->tx.prg_off, pin_tx, baudrate);
STATEOF(itf).baudrate = baudrate;
}
void ftdi_if_set_flowctrl(struct ftdi_interface* itf, enum ftdi_flowctrl flow) {
(void)itf; (void)flow; // TODO: bluh
}
void ftdi_if_set_lineprop(struct ftdi_interface* itf, enum ftdi_sio_lineprop lineprop) {
(void)itf; (void)lineprop; // TODO: break, stop, parity, #bits
}
void ftdi_if_uart_write(struct ftdi_interface* itf, const uint8_t* data, size_t datasize) {
struct ftdi_hw* hw = ftdihw_itf_to_hw(itf);
ftdihw_dma_write(hw, data, datasize);
}
size_t ftdi_if_uart_read(struct ftdi_interface* itf, uint8_t* data, size_t maxsize) {
struct ftdi_hw* hw = ftdihw_itf_to_hw(itf);
return ftdihw_dma_read(hw, data, maxsize);
}

52
bsp/rp2040/pico/assert.h Normal file
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@ -0,0 +1,52 @@
/*
* Copyright (c) 2020 Raspberry Pi (Trading) Ltd.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef _PICO_ASSERT_H
#define _PICO_ASSERT_H
#include <stdbool.h>
#ifdef __cplusplus
#include <cassert>
extern "C" {
#else
#include <assert.h>
#endif
// PICO_CONFIG: PARAM_ASSERTIONS_ENABLE_ALL, Global assert enable, type=bool, default=0, group=pico_base
// PICO_CONFIG: PARAM_ASSERTIONS_DISABLE_ALL, Global assert disable, type=bool, default=0, group=pico_base
#ifndef PARAM_ASSERTIONS_ENABLE_ALL
#define PARAM_ASSERTIONS_ENABLE_ALL 0
#endif
#ifndef PARAM_ASSERTIONS_DISABLE_ALL
#define PARAM_ASSERTIONS_DISABLE_ALL 0
#endif
#define PARAM_ASSERTIONS_ENABLED(x) ((PARAM_ASSERTIONS_ENABLED_ ## x || PARAM_ASSERTIONS_ENABLE_ALL) && !PARAM_ASSERTIONS_DISABLE_ALL)
#define invalid_params_if(x, test) ({if (PARAM_ASSERTIONS_ENABLED(x)) assert(!(test));})
#define valid_params_if(x, test) ({if (PARAM_ASSERTIONS_ENABLED(x)) assert(test);})
#define hard_assert_if(x, test) ({if (PARAM_ASSERTIONS_ENABLED(x)) hard_assert(!(test), #x);})
#ifdef NDEBUG
/*extern void hard_assertion_failure(void);
static inline void hard_assert(bool condition, ...) {
if (!condition)
hard_assertion_failure();
}*/
#define hard_assert(cond, ...) do { if (!(cond)) panic("Hard assert: " __FILE__); } while (0)
#else
#define hard_assert assert
#endif
#ifdef __cplusplus
}
#endif
#endif

View File

@ -52,6 +52,12 @@ def dpctl_do(args: Any) -> int:
return 1
return devcmds.sump_overclock_set(conn, oven)
def sto_info(conn, args):
return devcmds.storage_info(conn)
def sto_flush(conn, args):
return devcmds.storage_flush(conn)
def sto_get(conn, args):
return devcmds.storage_get(conn, args.mode)
#print(repr(args))
cmds = {
@ -59,6 +65,9 @@ def dpctl_do(args: Any) -> int:
'get-mode-info': get_mode_info,
'set-mode': set_mode,
'bootloader': bootloader,
'storage-info': sto_info,
'storage-flush': sto_flush,
'storage-get': sto_get,
'uart-cts-rts': uart_hw_flowctl,
'tempsensor': tempsensor,
@ -142,6 +151,15 @@ def main() -> int:
bootloader = subcmds.add_parser("bootloader", help="Set the device in bootloader mode")
# persistent storage commands
storagehdr = subcmds.add_parser("storage-info", help="Get persistent storage info")
storageflush = subcmds.add_parser("storage-flush", help="Flush persistent storage data to storage medium")
storageget = subcmds.add_parser("storage-get", help="Get data of a particular mode")
storageget.add_argument('mode', default=None, nargs='?',
help="Mode to get data of. Defaults to the current mode, 'all' means all modes.")
# mode 1 commands
usbhwfctl = subcmds.add_parser("uart-cts-rts", help="Get, enable/disable"+\
" UART hardware flow control")

View File

@ -85,6 +85,56 @@ def set_mode(dev: DPDevice, mode: int) -> int:
# ---
def storage_info(dev: DPDevice) -> int:
try:
res = dev.storage_info()
print("magic: %s, version=%04x, current mode=%d, #modes=%d, DJB2(table)=%d" \
% (('OK' if res.magic == b'\xf0\x9f\x8f\xb3\xef\xb8\x8f\xe2\x80\x8d\xe2\x9a\xa7\xef\xb8\x8f' else 'BAD!'),
res.version, res.curmode, res.nmodes, res.table_djb2))
for md in res.mode_data:
print("\tmode %d version %04x: 0x%x..+0x%x, DJB2=%d" % \
(md.mode, md.version, md.offset, md.datasize, md.data_djb2))
if len(res.mode_data) == 0:
print("No mode data");
return 0
except Exception as e:
print("Could not get storage info: %s" % str(e))
traceback.print_exc()
return 1
def storage_flush(dev: DPDevice) -> int:
try:
res = dev.storage_flush()
print("storage saved" if res else "no write needed")
return 0
except Exception as e:
print("Could not flush persistent storage: %s" % str(e))
return 1
def storage_get(dev: DPDevice, mode: str) -> int:
try:
if mode == 'all':
for m in dev.mode_info.keys():
res = dev.storage_get(mode)
print(repr(res)) # TODO
return 0
elif mode is None:
mode = dev.current_mode
else: mode = int(mode,0)
res = dev.storage_get(mode)
print(repr(res)) # TODO
return 0
except Exception as e:
print("Could not get storage data of mode %d: %s" % (mode, str(e)))
return 1
# ---
def uart_hw_flowctl_get(dev: DPDevice) -> int:
try:
res = dev.m1_usb_hw_flowctl_get()

View File

@ -32,10 +32,12 @@ class UsbConn(DevConn):
import usb, usb.core
cfg = dev.get_active_configuration()
#print("get active", cfg)
if cfg is None: # should be configured already, but eh
dev.set_configuration()
cfg = dev.get_active_configuration()
#print("set active", cfg)
if cfg is None:
return "Couldn't get or set device configuration, aaaaa"
@ -45,6 +47,7 @@ class UsbConn(DevConn):
if i.bInterfaceClass == usb.CLASS_VENDOR_SPEC and
i.bInterfaceSubClass == UsbConn._SUBCLASS and
i.bInterfaceProtocol == UsbConn._PROTOCOL]
#print("vnd itf", itf)
if len(itf) == 0:
return "No vendor control interface found for device"
@ -58,12 +61,18 @@ class UsbConn(DevConn):
epin = usb.util.find_descriptor(itf, custom_match =
lambda e: usb.util.endpoint_direction(e.bEndpointAddress) == usb.util.ENDPOINT_IN)
#print("epout", epout, "epin", epin)
try:
# try to read the version number. if it throws, it means the usbdev
# is in use by something else
#print("write")
epout.write(b'\x00')
#print("wrote")
resp = epin.read(4)
except usb.core.USBError:
#print("resp", resp)
except usb.core.USBError as e:
print("eep", e)
return "Device is busy, already used by something else? (If you use "+\
"the kernel module, use a character device from /dev instead.)"
@ -77,6 +86,7 @@ class UsbConn(DevConn):
if verno > DevConn._VER_MAX:
return "Version of device (%04x) too new, must be max. %04x" \
% (hex(verno, DevConn._VER_MAX))
#print("verno", verno)
return UsbConn(dev, cfg, itf, epin, epout)
@ -89,6 +99,8 @@ class UsbConn(DevConn):
if dev is None or len(dev) != 1:
return None
#print("devs", dev)
rv = UsbConn._open_dev(dev[0])
return None if isinstance(rv, str) else rv
@ -127,6 +139,8 @@ class UsbConn(DevConn):
if conntup is None:
return "Could not open USB device '%s': not recognised" % conn
#print("conntup", conntup)
dev = None
if conn_busdev:
if len(conntup) == 2:
@ -148,9 +162,12 @@ class UsbConn(DevConn):
return UsbConn._open_dev(dev[0])
def read_raw(self, arr) -> int:
return self._epin.read(arr)
rv = self._epin.read(arr)
print("read", arr[:rv])
return rv
def write_raw(self, b: bytes) -> int:
print("write", b)
return self._epout.write(b)
def __init__(self, dev, cfg, itf, epin, epout):
@ -168,6 +185,7 @@ class UsbConn(DevConn):
usb.util.release_interface(self._dev, self._itf)
usb.util.dispose_resources(self._dev)
#print("released & disposed")
self._epout = None
self._epin = None
self._itf = None
@ -205,6 +223,7 @@ class ChardevConn(DevConn):
"a Linux kernel module" % sys.platform
try:
#print("try char", conn)
fd = os.open(conn, os.O_RDWR)
if fd < 0:
raise OSError("Negative file descriptor returned")

View File

@ -18,6 +18,56 @@ STAT_BADARG = 0x04
STAT_ILLSTATE = 0x05
class StorageInfoMode(NamedTuple):
version: int
datasize: int
offset: int
mode: int
data_djb2: int
def from_bytes(b: bytes) -> StorageInfoMode:
assert len(b) == 12
v, ds, oam, d = struct.unpack('<HHII', b)
return StorageInfoMode(v, ds, oam & ((1<<28)-1), (oam >> 28) & 15, d)
def list_from_bytes(b: bytes) -> List[StorageInfoMode]:
nelem = len(b) // 12
assert nelem * 12 == len(b)
r = [None]*nelem
for i in range(nelem): r[i] = StorageInfoMode.from_bytes(b[(i*12):((i+1)*12)])
return [re for re in r if re.version != 0xffff and re.datasize != 0xffff]
class StorageInfo(NamedTuple):
magic: bytes
version: int
curmode: int
nmodes: int
reserved: bytes
table_djb2: int
mode_data: List[StorageInfoMode]
def from_bytes(b: bytes) -> StorageInfo:
assert len(b) == 256
mag = b[:16]
ver, cm, nm = struct.unpack('<HBB', b[16:20])
res = b[20:28] + b[245-32:]
d2tab = struct.unpack('<I', b[28:32])[0]
mdat = StorageInfoMode.list_from_bytes(b[32:256-32])
assert len(mdat) == nm
return StorageInfo(mag, ver, cm, nm, res, d2tab, mdat)
def __str__(self):
return "StorageInfo(magic=%s, version=%d, curmode=%d, nmodes=%d, table_djb2=%d, mode_data=%s)" \
% (' '.join(hex(b) for b in self.magic), self.version,
self.curmode, self.nmodes, self.table_djb2, repr(self.mode_data))
class JtagMatch(NamedTuple):
tck: int
tms: int
@ -144,11 +194,11 @@ class DPDevice:
if (plen & 0x80) != 0:
plen &= 0x7f
plen |= self.read(1) << 7
plen |= self.read(1)[0] << 7
if (plen & 0x4000) != 0:
plen &= 0x3fff
plen |= self.read(1) << 14
plen |= self.read(1)[0] << 14
bs = self.read(plen)
#print("==> got resp %d res %s" % (resp, repr(bs)))
@ -236,6 +286,32 @@ class DPDevice:
return { i for i in range(0, 8) if (pl[0] & (1<<i)) != 0 }
# persistent storage
def storage_info(self) -> StorageInfo:
cmd = bytearray(b'\x0c')
self.write(b'\x0c')
stat, pl = self.read_resp()
check_statpl(stat, pl, "get storage info", 256, 256)
return StorageInfo.from_bytes(pl)
def storage_flush(self) -> bool:
self.write(b'\x0e')
stat, pl = self.read_resp()
check_statpl(stat, pl, "flush storage", 1, 1)
return pl[0]
def storage_get(self, mode: int) -> bytes:
cmd = bytearray(b'\x0d\x00')
cmd[1] = mode
self.write(cmd)
stat, pl = self.read_resp()
check_statpl(stat, pl, "get storage data", None, None)
return pl # TODO: parse
# mode 1 commands
def m1_usb_hw_flowctl_get(self) -> bool:

1
src/.gitignore vendored Normal file
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@ -0,0 +1 @@
_storage_test/

View File

@ -3,6 +3,7 @@
#include <tusb.h>
#include "mode.h"
#include "storage.h"
#include "thread.h"
#include "usbstdio.h"
#include "vnd_cfg.h"
@ -35,6 +36,8 @@ enum m_default_feature {
mdef_feat_tempsense = 1<<4,
};
static bool data_dirty = false;
#ifdef DBOARD_HAS_UART
static cothread_t uartthread;
static uint8_t uartstack[THREAD_STACK_SIZE];
@ -81,6 +84,17 @@ static void enter_cb(void) {
serprogthread = co_derive(serprogstack, sizeof serprogstack, serprog_thread_fn);
thread_enter(serprogthread); // will call cdc_serprog_init() on correct thread
#endif
if (!data_dirty) { // only read when not read yet
struct mode_info mi = storage_mode_get_info(1);
if (mi.size != 0 && mi.version == 0x0010 /* TODO: version migration? */) {
uint8_t dst[2];
storage_mode_read(1, dst, 0, 2);
cdc_uart_set_hwflow(dst[0]);
tempsense_set_addr(dst[1]);
}
}
}
static void leave_cb(void) {
// TODO: CMSISDAP?
@ -144,7 +158,12 @@ static void handle_cmd_cb(uint8_t cmd) {
break;
case mdef_cmd_tempsense:
#ifdef DBOARD_HAS_TEMPSENSOR
{
uint8_t addra = tempsense_get_addr();
tempsense_bulk_cmd();
uint8_t addrb = tempsense_get_addr();
data_dirty |= addra != addrb;
}
#else
vnd_cfg_write_str(cfg_resp_illcmd, "temperature sensor not implemented on this device");
#endif
@ -156,9 +175,10 @@ static void handle_cmd_cb(uint8_t cmd) {
resp = cdc_uart_get_hwflow() ? 1 : 0;
vnd_cfg_write_resp(cfg_resp_ok, 1, &resp);
} else {
if (cdc_uart_set_hwflow(resp != 0))
if (cdc_uart_set_hwflow(resp != 0)) {
vnd_cfg_write_resp(cfg_resp_ok, 0, NULL);
else
data_dirty = true;
} else
vnd_cfg_write_str(cfg_resp_illcmd, "UART flow control setting not supported on this device");
}
#else
@ -387,6 +407,19 @@ static bool my_vendor_control_xfer_cb(uint8_t rhport, uint8_t ep_addr,
}
#endif
static uint16_t my_get_size(void) { return 2; }
static void my_get_data(void* dst, size_t offset, size_t maxsize) {
(void)offset; (void)maxsize;
uint8_t* d = dst;
d[0] = cdc_uart_get_hwflow() ? 1 : 0;
d[1] = tempsense_get_addr();
data_dirty = false;
}
static bool my_is_dirty(void) { return data_dirty; }
extern struct mode m_01_default;
// clang-format off
struct mode m_01_default = {
@ -402,6 +435,13 @@ struct mode m_01_default = {
.task = task_cb,
.handle_cmd = handle_cmd_cb,
.storage = {
.stclass = mode_storage_32b,
.get_size = my_get_size,
.get_data = my_get_data,
.is_dirty = my_is_dirty
},
#if defined(DBOARD_HAS_CMSISDAP) && CFG_TUD_HID > 0
#if 0
.tud_hid_get_report_cb = my_hid_get_report_cb,

265
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@ -0,0 +1,265 @@
// vim: set et:
#include "tusb_config.h"
#include <tusb.h>
#include "mode.h"
#include "thread.h"
#include "usbstdio.h"
#include "vnd_cfg.h"
#include "m_ftdi/bsp-feature.h"
#include "m_ftdi/ftdi.h"
static bool data_dirty = false;
void ftdi_eeprom_dirty_set(bool v) { (void)v; data_dirty = true; }
bool ftdi_eeprom_dirty_get(void) { return data_dirty; }
#ifdef DBOARD_HAS_FTDI
static cothread_t ftdithread_ifa, ftdithread_ifb;
static uint8_t ftdistack_ifa[THREAD_STACK_SIZE>>1], ftdistack_ifb[THREAD_STACK_SIZE>>1];
static void ftdi_thread_fn_ifa(void) {
while (1) {
printf("fn ifa thread!\n");
//ftdi_task_ifa();
thread_yield();
}
}
static void ftdi_thread_fn_ifb(void) {
while (1) {
printf("fn ifb thread!\n");
//ftdi_task_ifb();
thread_yield();
}
}
#endif
static void enter_cb(void) {
printf("mode5 enter begin VND_N_CONFIG=%d\n", VND_N_CFG);
#ifdef USE_USBCDC_FOR_STDIO
stdio_usb_set_itf_num(CDC_N_STDIO);
#endif
//vnd_cfg_set_itf_num(VND_N_CFG);
#ifdef DBOARD_HAS_FTDI
/*ftdithread_ifa = co_derive(ftdistack_ifa, sizeof ftdistack_ifa, ftdi_thread_fn_ifa);
ftdithread_ifb = co_derive(ftdistack_ifb, sizeof ftdistack_ifb, ftdi_thread_fn_ifb);*/
#endif
/*if (!data_dirty) {
struct mode_info mi = storage_mode_get_info(5);
if (mi.size != 0 && mi.version == 0x0010) {
storage_mode_read(5, ftdi_eeprom, 0, sizeof ftdi_eeprom);
}
}*/
//ftdi_init();
printf("mode5 enter end\n");
}
static void leave_cb(void) {
printf("mode5 leave\n");
#ifdef DBOARD_HAS_FTDI
//ftdi_deinit();
#endif
}
static void task_cb(void) {
printf("mode5 task\n");
#ifdef DBOARD_HAS_FTDI
//tud_task();
//thread_enter(ftdithread_ifa);
//tud_task();
//thread_enter(ftdithread_ifb);
#endif
}
static void handle_cmd_cb(uint8_t cmd) {
printf("mode5 handlecmd %02x\n", cmd);
uint8_t resp = 0;
switch (cmd) {
case mode_cmd_get_features:
resp = 0; // TODO: what do we put here?
vnd_cfg_write_resp(cfg_resp_ok, 1, &resp);
break;
default:
vnd_cfg_write_strf(cfg_resp_illcmd, "unknown mode5 command %02x", cmd);
break;
}
}
enum {
STRID_LANGID = 0,
STRID_MANUFACTURER,
STRID_PRODUCT,
STRID_SERIAL,
STRID_CONFIG,
STRID_IF_VND_CFG,
STRID_IF_VND_FTDI_IFA,
STRID_IF_VND_FTDI_IFB,
STRID_IF_CDC_STDIO,
};
enum {
/*ITF_NUM_VND_FTDI_IFA,
ITF_NUM_VND_FTDI_IFB,*/
#if CFG_TUD_VENDOR > 0
ITF_NUM_VND_CFG,
#endif
#ifdef USE_USBCDC_FOR_STDIO
ITF_NUM_CDC_STDIO_COM,
ITF_NUM_CDC_STDIO_DATA,
#endif
ITF_NUM__TOTAL
};
enum {
CONFIG_TOTAL_LEN
= TUD_CONFIG_DESC_LEN
/*+ TUD_VENDOR_DESC_LEN
+ TUD_VENDOR_DESC_LEN*/
#if CFG_TUD_VENDOR > 0
+ TUD_VENDOR_DESC_LEN
#endif
#ifdef USE_USBCDC_FOR_STDIO
+ TUD_CDC_DESC_LEN
#endif
};
/*#define EPNUM_VND_FTDI_IFA_OUT 0x02
#define EPNUM_VND_FTDI_IFA_IN 0x81
#define EPNUM_VND_FTDI_IFB_OUT 0x04
#define EPNUM_VND_FTDI_IFB_IN 0x83
#define EPNUM_VND_CFG_OUT 0x05
#define EPNUM_VND_CFG_IN 0x85
#define EPNUM_CDC_STDIO_OUT 0x06
#define EPNUM_CDC_STDIO_IN 0x86
#define EPNUM_CDC_STDIO_NOTIF 0x87*/
#define EPNUM_VND_CFG_OUT 0x01
#define EPNUM_VND_CFG_IN 0x81
#define EPNUM_CDC_STDIO_OUT 0x02
#define EPNUM_CDC_STDIO_IN 0x82
#define EPNUM_CDC_STDIO_NOTIF 0x83
// clang-format off
static const uint8_t desc_configuration[] = {
TUD_CONFIG_DESCRIPTOR(1, ITF_NUM__TOTAL, STRID_CONFIG, CONFIG_TOTAL_LEN,
TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
/*TUD_VENDOR_DESCRIPTOR(ITF_NUM_VND_FTDI_IFA, STRID_IF_VND_FTDI_IFA,
EPNUM_VND_FTDI_IFA_OUT, EPNUM_VND_FTDI_IFA_IN, CFG_TUD_VENDOR_RX_BUFSIZE),
TUD_VENDOR_DESCRIPTOR(ITF_NUM_VND_FTDI_IFB, STRID_IF_VND_FTDI_IFB,
EPNUM_VND_FTDI_IFB_OUT, EPNUM_VND_FTDI_IFB_IN, CFG_TUD_VENDOR_RX_BUFSIZE),*/
#if CFG_TUD_VENDOR > 0
TUD_VENDOR_DESCRIPTOR_EX(ITF_NUM_VND_CFG, STRID_IF_VND_CFG, EPNUM_VND_CFG_OUT,
EPNUM_VND_CFG_IN, CFG_TUD_VENDOR_RX_BUFSIZE, VND_CFG_SUBCLASS, VND_CFG_PROTOCOL),
#endif
#ifdef USE_USBCDC_FOR_STDIO
TUD_CDC_DESCRIPTOR(ITF_NUM_CDC_STDIO_COM, STRID_IF_CDC_STDIO, EPNUM_CDC_STDIO_NOTIF,
CFG_TUD_CDC_RX_BUFSIZE, EPNUM_CDC_STDIO_OUT, EPNUM_CDC_STDIO_IN, CFG_TUD_CDC_RX_BUFSIZE),
#endif
};
static const char* string_desc_arr[] = {
NULL,
[STRID_CONFIG] = "Configuration descriptor",
// max string length check: |||||||||||||||||||||||||||||||
[STRID_IF_VND_CFG ] = "Device cfg/ctl interface",
[STRID_IF_VND_FTDI_IFA] = "DragonProbe FT2232D interface A",
[STRID_IF_VND_FTDI_IFB] = "DragonProbe FT2232D interface B",
#ifdef USE_USBCDC_FOR_STDIO
[STRID_IF_CDC_STDIO] = "stdio CDC interface (debug)",
#endif
};
// clang-format on
static tusb_desc_device_t desc_device = {
.bLength = sizeof(tusb_desc_device_t),
.bDescriptorType = TUSB_DESC_DEVICE,
.bcdUSB = 0x0110, // TODO: 0x0200 ? is an eeprom option
.bDeviceClass = 0x00,
.bDeviceSubClass = 0x00,
.bDeviceProtocol = 0x00,
.bMaxPacketSize0 = CFG_TUD_ENDPOINT0_SIZE,
.idVendor = 0x0403, // ?
.idProduct = 0x6010, // ?
.bcdDevice = 0x0500, // required!
.iManufacturer = STRID_MANUFACTURER,
.iProduct = STRID_PRODUCT,
.iSerialNumber = STRID_SERIAL,
.bNumConfigurations = 0x01
};
static const uint8_t* my_descriptor_device_cb(void) {
return (const uint8_t*)&desc_device;
}
#if CFG_TUD_CDC > 0
static void my_cdc_line_coding_cb(uint8_t itf, cdc_line_coding_t const* line_coding) {
printf("mode5 linecoding %02x, %lu\n", itf, line_coding->bit_rate);
switch (itf) {
#ifdef USE_USBCDC_FOR_STDIO
case CDC_N_STDIO:
stdio_usb_line_coding_cb(line_coding);
break;
#endif
}
}
#endif
static uint16_t my_get_size(void) { return sizeof ftdi_eeprom; }
static void my_get_data(void* dst, size_t offset, size_t maxsize) {
memcpy(dst, (const uint8_t*)ftdi_eeprom + offset, maxsize);
data_dirty = false;
}
static bool my_is_dirty(void) { return data_dirty; }
extern struct mode m_05_ftdi;
// clang-format off
struct mode m_05_ftdi = {
.name = "FTDI FT2232D emulation mode",
.version = 0x0010,
.n_string_desc = sizeof(string_desc_arr)/sizeof(string_desc_arr[0]),
.usb_desc = desc_configuration,
.string_desc = string_desc_arr,
.enter = enter_cb,
.leave = leave_cb,
.task = task_cb,
.handle_cmd = handle_cmd_cb,
/*.storage = {
.stclass = mode_storage_512b,
.get_size = my_get_size,
.get_data = my_get_data,
.is_dirty = my_is_dirty
},*/
#ifdef DBOARD_HAS_FTDI
//.tud_descriptor_device_cb = my_descriptor_device_cb,
#endif
#if CFG_TUD_CDC > 0
.tud_cdc_line_coding_cb = my_cdc_line_coding_cb,
#endif
#ifdef DBOARD_HAS_FTDI
//.tud_vendor_control_xfer_cb = ftdi_control_xfer_cb,
#endif
};
// clang-format on

486
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@ -0,0 +1,486 @@
// vim: set et:
#include "tusb_config.h"
#include <tusb.h>
#include "thread.h"
#include "m_ftdi/bsp-feature.h"
#include "m_ftdi/ftdi.h"
// index = interface number (A/B)
// out/in bRequest wValue wIndex data wLength
// RESET: out 0 0 index
// TCIFLUSH: out 0 2 index
// TCOFLUSH: out 0 1 index
// SETMODEMCTRL:out 1 (mask:8<<8 | data:8) // bit0=dtr bit1=rts
// SETFLOWCTRL: out 2 xon?1:0 (flowctrl | index) // flowctrl: 0=disable, 1=ctsrts, 2=dtrdsr 4=xonxoff FROM VALUE, not set/reset!
// SETBAUDRATE: out 3 brate brate24|index // 48 MHz clocks, /16? , baudrate is 24bit, highest byte in index MSB
// SETLINEPROP: out 4 (break:1<<14 | stop:2<<11 | parity:3<<8 | bits:8) ; break: off/on, stop=1/15/2, parity=none/odd/even/mark/space; bits=7/8
// POLLMODEMSTAT:in 5 0 index &modemstat len=2 // first byte: bit0..3=0 bit4=cts bit5=dts bit6=ri bit7=rlsd ; second byte: bit0=dr bit1=oe bit2=pe bit3=fe bit4=bi bit5=thre bit6=temt bit7=fifoerr
// SETEVENTCHAR:out 6 (endis:1<<8 | char)
// SETERRORCHAR:out 7 (endir:1<<8 | char)
// <there is no bReqest 8>
// SETLATENCY: out 9 latency(1..255)
// GETLATENCY: in 0xa 0 index &latency len=1
// SETBITBANG: out 0xb dirmask:8<<8 | mode:8 // mode: MPSSE mode: 0=serial/fifo, 1=bitbang, 2=mpsse, 4=syncbb, 8=mcu, 16=opto
// READPINS: in 0xc 0 index &pins len=1
// READEEPROM: in 0x90 0 eepaddr &val 2 // eepaddr in 16-bit units(?)
// WRITEEEPROM: out 0x91 value eepaddr
// ERASEEEPROM: out 0x92 0 0
// eeprom layout:
// max size is 128 words (256 bytes), little-endian
// 00: type, driver, .. stuff (chanA byte, chanB byte) -> TODO: what does this mean exactly?
// 0=UART 1=FIFO 2=opto 4=CPUFIFO 8=FT1284
// 01: VID
// 02: PID
// 03: bcdDevice
// 04: byte08: flags: bit7=1 bit6=1=selfpowered bit5=1=remotewakeup ; byte09=max power, 2mA units
// 05: bit0=epin isochr, bit1=epout isochr, bit2=suspend pulldn, bit3=serialno use, bit4=usbver change, bit5..7=0
// 06: bcdUSB
// 07: byte0E=manufstr.off-0x80, byte0F=manufstr.len (in bytes, but 16-bit ascii)
// 08: ^ but product
// 09: ^ but serial
// 0a: chip type (66 etc -> we emulate '00', internal)
// "strings start at 0x96 for ft2232c" (byte addr)
// checksum:
// initial: 0xaaaa
// digest 1 byte:
// checksum = (checksum ^ word) <<< 1;
// placed at last word of EEPROM
// ftdi_write_data(), ftdi_read_data(): bulk xfer
// input/tristate: 200K pullup
// SI/WU: let's ignore this
// UART mode: standard stuff
// FIFO mode: RDF#=0: enable output. RD# rising when RXF#=0: fetch next byte
// TXF#=0: enable input. WR falling when TXF#=0: write byte
// bitbang mode: ^ similar, no RDF#/TXF#, RD#/WR# (now WR# jenai WR) pos depends on UART mode std (UART vs FIFO)
// sync bitbang: doesn't use RD#/WR#, clocked by baudrate control
// MPSSE: lots of magic. TCK/SK, TDI/DO, TDO/DI, TMS/CS, GPIOL0..3, GPIOH0..3(7?)
// bulk xfer formats: (interface index <-> bulk epno)
// * UART: ok I guess
// * FIFO: same
// * bitbang, sync bitbang: ???? (just data or also clock stuff?? ?)
// * MPSSE, MCU: see separate PDF
// * CPUFIFIO: same as FIFO ig
// * opto, FT1284: not supported
#ifdef DBOARD_HAS_FTDI
int __builtin_ctz(unsigned int v);
uint16_t ftdi_eeprom[128];
struct ftdi_interface ftdi_ifa, ftdi_ifb;
void ftdi_init(void) {
// init eeprom defaults
memset(ftdi_eeprom, 0xff, sizeof ftdi_eeprom);
ftdi_eeprom[ 0] = 0x0000; // both default to UART
ftdi_eeprom[ 1] = 0x0403; // idVendor
ftdi_eeprom[ 2] = 0x6010; // idProduct
ftdi_eeprom[ 3] = 0x0500; // bcdDevice
ftdi_eeprom[ 4] = 0x5080; // 100 mA, no flags
ftdi_eeprom[ 5] = 0x0000; // more flags
ftdi_eeprom[ 6] = 0x0110; // bcdUSB
ftdi_eeprom[ 7] = 0x0000; // no manuf. str (TODO?)
ftdi_eeprom[ 8] = 0x0000; // no prod. str (TODO?)
ftdi_eeprom[ 9] = 0x0000; // no serial str (TODO?)
ftdi_eeprom[10] = 0x0000; // internal chip
ftdi_eeprom[0x7f] = ftdi_eeprom_checksum_calc(ftdi_eeprom, 0x7f);
memset(&ftdi_ifa, 0, sizeof ftdi_ifa);
memset(&ftdi_ifb, 0, sizeof ftdi_ifb);
ftdi_ifa.lineprop = sio_bits_8 | sio_stop_1; // 8n1
ftdi_ifb.lineprop = sio_bits_8 | sio_stop_1; // 8n1
ftdi_ifa.index = 0;
ftdi_ifb.index = 1;
ftdi_ifa.modemstat = sio_modem_temt;
ftdi_ifb.modemstat = sio_modem_temt;
ftdi_if_init(&ftdi_ifa);
ftdi_if_init(&ftdi_ifb);
}
void ftdi_deinit(void) {
ftdi_if_deinit(&ftdi_ifa);
ftdi_if_deinit(&ftdi_ifb);
}
static uint8_t vnd_read_byte(struct ftdi_interface* itf, int itfnum) {
while (itf->rxavail <= 0) {
if (!tud_vendor_n_mounted(itfnum) || !tud_vendor_n_available(itfnum)) {
thread_yield();
continue;
}
itf->rxpos = 0;
itf->rxavail = tud_vendor_n_read(itfnum, itf->bufbuf, sizeof itf->bufbuf);
if (itf->rxavail == 0) thread_yield();
}
uint8_t rv = itf->bufbuf[itf->rxpos];
++itf->rxpos;
--itf->rxavail;
return rv;
}
typedef void (*ftfifo_write_fn)(struct ftdi_interface*, const uint8_t*, size_t);
typedef size_t (*ftfifo_read_fn)(struct ftdi_interface*, uint8_t*, size_t);
struct ftfifo_fns {
ftfifo_write_fn write;
ftfifo_read_fn read ;
};
static const struct ftfifo_fns fifocbs[] = {
{ ftdi_if_uart_write, ftdi_if_uart_read }, // technically mpsse
{ ftdi_if_asyncbb_write, ftdi_if_asyncbb_read },
{ ftdi_if_syncbb_write, ftdi_if_syncbb_read },
{ NULL, NULL }, // mcuhost
{ ftdi_if_fifo_write, ftdi_if_fifo_read },
{ NULL, NULL }, // opto
{ ftdi_if_cpufifo_write, ftdi_if_cpufifo_read },
{ NULL, NULL }, // ft1284
};
// for handling USB bulk commands
static void ftdi_task(int itfnum) {
if (!tud_vendor_n_mounted(itfnum)) return; // can't do much in this case
struct ftdi_interface* itf;
if (itfnum == VND_N_FTDI_IFA) itf = &ftdi_ifa;
else if (itfnum == VND_N_FTDI_IFB) itf = &ftdi_ifb;
else return;
// for UART, FIFO, asyncbb, syncbb, and CPUfifo modes, operation is
// relatively straightforward: the device acts like some sort of FIFO, so
// it's just shoving bytes to the output pins. MPSSE and MCU host emulation
// modes are more difficult, as the bulk data actually has some form of
// protocol.
enum ftdi_mode mode = ftdi_if_get_mode(itf);
struct ftfifo_fns fifocb = fifocbs[(mode == 0) ? 0 : __builtin_ctz(mode)];
uint32_t avail;
uint8_t cmdbyte = 0;
switch (mode) {
case ftmode_uart : case ftmode_fifo : case ftmode_cpufifo:
case ftmode_asyncbb: case ftmode_syncbb:
if (fifocb.read == NULL || fifocb.write == NULL) goto CASE_DEFAULT; // welp
avail = tud_vendor_n_available(itfnum);
if (avail) {
tud_vendor_n_read(itfnum, itf->writebuf, avail);
fifocb.write(itf, itf->writebuf, avail);
}
do {
avail = fifocb.read(itf, itf->readbuf, sizeof itf->readbuf);
if (avail) tud_vendor_n_write(itfnum, itf->readbuf, avail);
} while (avail == sizeof itf->readbuf);
break;
case ftmode_mpsse:
avail = 0;
switch ((cmdbyte = vnd_read_byte(itf, itfnum))) {
case ftmpsse_set_dirval_lo: // low byte of output gpio, not to low level
itf->writebuf[0] = vnd_read_byte(itf, itfnum); // val
itf->writebuf[1] = vnd_read_byte(itf, itfnum); // dir
ftdi_if_mpsse_set_dirval_lo(itf, itf->writebuf[1], itf->writebuf[0]);
break;
case ftmpsse_set_dirval_hi:
itf->writebuf[0] = vnd_read_byte(itf, itfnum); // val
itf->writebuf[1] = vnd_read_byte(itf, itfnum); // dir
ftdi_if_mpsse_set_dirval_hi(itf, itf->writebuf[1], itf->writebuf[0]);
break;
case ftmpsse_read_lo:
itf->readbuf[0] = ftdi_if_mpsse_read_lo(itf);
avail = 1;
break;
case ftmpsse_read_hi:
itf->readbuf[0] = ftdi_if_mpsse_read_hi(itf);
avail = 1;
break;
case ftmpsse_loopback_on : ftdi_if_mpsse_loopback(itf, true ); break;
case ftmpsse_loopback_off: ftdi_if_mpsse_loopback(itf, false); break;
case ftmpsse_set_clkdiv:
avail = vnd_read_byte(itf, itfnum);
avail |= (uint32_t)vnd_read_byte(itf, itfnum) << 8;
ftdi_if_mpsse_set_clkdiv(itf, (uint16_t)avail);
avail = 0;
break;
case ftmpsse_flush: ftdi_if_mpsse_flush(itf); break;
case ftmpsse_wait_io_hi: ftdi_if_mpsse_wait_io(itf, true ); break;
case ftmpsse_wait_io_lo: ftdi_if_mpsse_wait_io(itf, false); break;
case ftmpsse_div5_disable: ftdi_if_mpsse_div5(itf, false); break;
case ftmpsse_div5_enable : ftdi_if_mpsse_div5(itf, true ); break;
case ftmpsse_data_3ph_en : ftdi_if_mpsse_data_3ph(itf, true ); break;
case ftmpsse_data_3ph_dis: ftdi_if_mpsse_data_3ph(itf, false); break;
case ftmpsse_clockonly_bits: ftdi_if_mpsse_clockonly(itf, vnd_read_byte(itf, itfnum)); break;
case ftmpsse_clockonly_bytes:
avail = vnd_read_byte(itf, itfnum);
avail |= (uint32_t)vnd_read_byte(itf, itfnum) << 8;
ftdi_if_mpsse_clockonly(itf, avail);
avail = 0;
break;
case ftmpsse_clock_wait_io_hi: ftdi_if_mpsse_clock_wait_io(itf, true ); break;
case ftmpsse_clock_wait_io_lo: ftdi_if_mpsse_clock_wait_io(itf, false); break;
case ftmpsse_adapclk_enable : ftdi_if_mpsse_adaptive(itf, true ); break;
case ftmpsse_adapclk_disable: ftdi_if_mpsse_adaptive(itf, false); break;
case ftmpsse_clock_bits_wait_io_hi:
avail = vnd_read_byte(itf, itfnum);
avail |= (uint32_t)vnd_read_byte(itf, itfnum) << 8;
ftdi_if_mpsse_clockonly_wait_io(itf, true, avail);
avail = 0;
break;
case ftmpsse_clock_bits_wait_io_lo:
avail = vnd_read_byte(itf, itfnum);
avail |= (uint32_t)vnd_read_byte(itf, itfnum) << 8;
ftdi_if_mpsse_clockonly_wait_io(itf, false, avail);
avail = 0;
break;
case ftmpsse_hi_is_tristate:
avail = vnd_read_byte(itf, itfnum);
avail |= (uint32_t)vnd_read_byte(itf, itfnum) << 8;
ftdi_if_mpsse_hi_is_tristate(itf, avail);
avail = 0;
break;
default: CASE_DEFAULT:
if (!(cmdbyte & ftmpsse_specialcmd)) {
if (cmdbyte & ftmpsse_tmswrite) {
if (cmdbyte & ftmpsse_bitmode) {
itf->writebuf[0] = vnd_read_byte(itf, itfnum); // number of bits
itf->writebuf[1] = vnd_read_byte(itf, itfnum); // data bits to output
itf->readbuf[0] = ftdi_if_mpsse_tms_xfer(itf, cmdbyte, itf->writebuf[0], itf->writebuf[1]);
if (cmdbyte & ftmpsse_tdoread) avail = 1;
break;
}
// else: fallthru to error code
} else {
if (cmdbyte & ftmpsse_bitmode) {
itf->writebuf[0] = vnd_read_byte(itf, itfnum); // number of bits
if (cmdbyte & ftmpsse_tdiwrite)
itf->writebuf[1] = vnd_read_byte(itf, itfnum); // data bits to output
itf->readbuf[0] = ftdi_if_mpsse_xfer_bits(itf, cmdbyte, itf->writebuf[0], itf->writebuf[1]);
if (cmdbyte & ftmpsse_tdoread) avail = 1;
break;
} else {
avail = vnd_read_byte(itf, itfnum);
avail |= (uint32_t)vnd_read_byte(itf, itfnum) << 8;
for (size_t i = 0; i < avail; i += 64) {
uint32_t thisbatch = avail - i;
if (thisbatch > 64) thisbatch = 64;
for (size_t j = 0; j < thisbatch; ++j)
itf->writebuf[j] = vnd_read_byte(itf, itfnum);
ftdi_if_mpsse_xfer_bytes(itf, cmdbyte, thisbatch, itf->readbuf, itf->writebuf);
tud_vendor_n_write(itfnum, itf->readbuf, thisbatch);
}
avail = 0;
break;
}
}
}
itf->readbuf[0] = 0xfa;
itf->readbuf[1] = cmdbyte;
avail = 2;
break;
}
if (avail) tud_vendor_n_write(itfnum, itf->readbuf, avail);
break;
case ftmode_mcuhost:
avail = 0;
switch ((cmdbyte = vnd_read_byte(itf, itfnum))) {
case ftmcu_flush: ftdi_if_mcuhost_flush(itf); break;
case ftmcu_wait_io_hi: ftdi_if_mcuhost_wait_io(itf, true ); break;
case ftmcu_wait_io_lo: ftdi_if_mcuhost_wait_io(itf, false); break;
case ftmcu_read8:
itf->readbuf[0] = ftdi_if_mcuhost_read8(itf, vnd_read_byte(itf, itfnum));
avail = 1;
break;
case ftmcu_read16:
avail = (uint32_t)vnd_read_byte(itf, itfnum) << 8;
avail |= vnd_read_byte(itf, itfnum);
itf->readbuf[0] = ftdi_if_mcuhost_read16(itf, (uint16_t)avail);
avail = 1;
break;
case ftmcu_write8:
itf->writebuf[0] = vnd_read_byte(itf, itfnum);
itf->writebuf[1] = vnd_read_byte(itf, itfnum);
ftdi_if_mcuhost_write8(itf, itf->writebuf[0], itf->writebuf[1]);
break;
case ftmcu_write16:
avail = (uint32_t)vnd_read_byte(itf, itfnum) << 8;
avail |= vnd_read_byte(itf, itfnum);
itf->writebuf[0] = vnd_read_byte(itf, itfnum);
ftdi_if_mcuhost_write8(itf, avail, itf->writebuf[0]);
avail = 0;
break;
default: // send error response when command doesn't exist
itf->readbuf[0] = 0xfa;
itf->readbuf[1] = cmdbyte;
avail = 2;
break;
}
if (avail) tud_vendor_n_write(itfnum, itf->readbuf, avail);
break;
default: // drop incoming data so that the pipes don't get clogged. can't do much else
avail = tud_vendor_n_available(itfnum);
if (avail) tud_vendor_n_read(itfnum, itf->writebuf, avail);
break;
}
}
void ftdi_task_ifa(void) { ftdi_task(VND_N_FTDI_IFA); }
void ftdi_task_ifb(void) { ftdi_task(VND_N_FTDI_IFB); }
#define FT2232D_CLOCK (48*1000*1000)
uint32_t ftdi_if_decode_baudrate(uint32_t enc_brate) { // basically reversing libftdi ftdi_to_clkbits
static const uint8_t ftdi_brate_frac_lut[8] = { 0, 4, 2, 1, 3, 5, 6, 7 };
// special cases
if (enc_brate == 0) return FT2232D_CLOCK >> 4;
else if (enc_brate == 1) return FT2232D_CLOCK / 24;
else if (enc_brate == 2) return FT2232D_CLOCK >> 5;
uint32_t div = (enc_brate & 0x7fff) << 3; // integer part
div = div | ftdi_brate_frac_lut[(enc_brate >> 14) & 7];
uint32_t baud = FT2232D_CLOCK / div;
if (baud & 1) baud = (baud >> 1) + 1; // raunding
else baud >>= 1;
return baud;
}
static uint8_t control_buf[2];
bool ftdi_control_xfer_cb(uint8_t rhport, uint8_t stage,
tusb_control_request_t const* req) {
// return true: don't stall
// return false: stall
// not a vendor request -> not meant for this code
if (req->bmRequestType_bit.type != TUSB_REQ_TYPE_VENDOR) return true;
// data stage not needed: data stages only for device->host xfers, never host->device
if (stage != CONTROL_STAGE_SETUP) return true;
// tud_control_status(rhport, req); : acknowledge
// tud_control_xfer(rhport, req, bufaddr, size); : ack + there's a data phase with stuff to do
// write: send bufaddr value. read: data stage will have bufaddr filled out
// do EEPROM stuff first, as these don't use wIndex as channel select
uint16_t tmp16;
switch (req->bRequest) {
case sio_readeeprom:
tmp16 = ftdi_eeprom[req->wIndex & 0x7f];
control_buf[0] = tmp16 & 0xff;
control_buf[1] = tmp16 >> 8;
return tud_control_xfer(rhport, req, control_buf, 2);
case sio_writeeeprom:
ftdi_eeprom[req->wIndex & 0x7f] = req->wValue;
return tud_control_status(rhport, req);
case sio_eraseeeprom:
memset(ftdi_eeprom, 0xff, sizeof ftdi_eeprom);
return tud_control_status(rhport, req);
}
int itfnum = req->wIndex & 0xff;
struct ftdi_interface* itf = &ftdi_ifa; // default
if (itfnum > 2) return false; // bad interface number
else if (itfnum == 1) itf = &ftdi_ifa;
else if (itfnum == 2) itf = &ftdi_ifb;
switch (req->bRequest) {
case sio_cmd:
if (req->wValue == sio_reset) {
itf->modem_mask = 0;
itf->modem_data = 0;
itf->flow = ftflow_none;
itf->lineprop = sio_bits_8 | sio_stop_1; // 8n1
itf->charen = 0;
itf->bb_dir = 0;
itf->bb_mode = sio_mode_reset;
itf->mcu_addr_latch = 0;
itf->rxavail = 0; itf->rxpos = 0;
ftdi_if_sio_reset(itf);
} else if (req->wValue == sio_tciflush) {
itf->rxavail = 0; itf->rxpos = 0;
ftdi_if_sio_tciflush(itf);
} else if (req->wValue == sio_tcoflush) {
// nothing extra to clear here I think
ftdi_if_sio_tcoflush(itf);
} else return false; // unk
return tud_control_status(rhport, req);
case sio_setmodemctrl:
ftdi_if_set_modemctrl(itf,
itf->modem_mask = (req->wValue >> 8),
itf->modem_data = (req->wValue & 0xff));
return tud_control_status(rhport, req);
case sio_setflowctrl: {
enum ftdi_flowctrl flow = (req->wIndex >> 8);
if (!req->wValue)
flow = (flow & ~ftflow_xonxoff) | (itf->flow & ftflow_xonxoff);
ftdi_if_set_flowctrl(itf, itf->flow = flow);
} return tud_control_status(rhport, req);
case sio_setbaudrate: {
uint32_t enc_brate = (uint32_t)req->wValue | ((uint32_t)(req->wIndex & 0xff00) << 8);
uint32_t brate = ftdi_if_decode_baudrate(enc_brate);
ftdi_if_set_baudrate(itf, itf->baudrate = brate);
} return tud_control_status(rhport, req);
case sio_setlineprop:
ftdi_if_set_lineprop(itf, itf->lineprop = req->wValue);
return tud_control_status(rhport, req);
case sio_pollmodemstat:
tmp16 = ftdi_if_poll_modemstat(itf);
control_buf[0] = tmp16 & 0xff;
control_buf[1] = tmp16 >> 8;
return tud_control_xfer(rhport, req, control_buf, 2);
case sio_seteventchar:
if (req->wValue >> 8) itf->charen |= eventchar_enable;
else if (itf->charen & eventchar_enable) itf->charen ^= eventchar_enable;
ftdi_if_set_eventchar(itf, req->wValue >> 8,
itf->eventchar = (req->wValue & 0xff));
return tud_control_status(rhport, req);
case sio_seterrorchar:
if (req->wValue >> 8) itf->charen |= errorchar_enable;
else if (itf->charen & errorchar_enable) itf->charen ^= errorchar_enable;
ftdi_if_set_errorchar(itf, req->wValue >> 8,
itf->errorchar = (req->wValue & 0xff));
return tud_control_status(rhport, req);
case sio_setlatency:
ftdi_if_set_latency(itf, itf->latency = (req->wValue & 0xff));
return tud_control_status(rhport, req);
case sio_getlatency:
control_buf[0] = ftdi_if_get_latency(itf);
return tud_control_xfer(rhport, req, control_buf, 1);
case sio_setbitbang: {
uint8_t olddir = itf->bb_dir;
enum ftdi_sio_bitmode oldmode = itf->bb_mode;
ftdi_if_set_bitbang(itf,
itf->bb_dir = (req->wValue >> 8),
itf->bb_mode = (req->wValue & 0xff),
olddir, oldmode);
} return tud_control_status(rhport, req);
case sio_readpins:
control_buf[0] = ftdi_if_read_pins(itf);
return tud_control_xfer(rhport, req, control_buf, 1);
default: return false; // stall if not recognised
}
}
#endif /* DBOARD_HAS_FTDI */

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// vim: set et:
#ifndef FTDI_H_
#define FTDI_H_
#include "tusb_config.h"
#include <tusb.h>
// USB command handling, and mode interfacing stuff
void ftdi_init(void);
void ftdi_deinit(void);
// have separate tasks for the separate bulk endpoints so that a wait-for-data
// in one ep won't cause the otehr to stall, too
void ftdi_task_ifa(void);
void ftdi_task_ifb(void);
bool ftdi_control_xfer_cb(uint8_t rhport, uint8_t ep_addr,
tusb_control_request_t const* req);
void ftdi_eeprom_dirty_set(bool v);
bool ftdi_eeprom_dirty_get(void);
extern uint16_t ftdi_eeprom[128];
#define FTDI_EEP_IFA_MODE (ftdi_eeprom[0] & 0xff)
#define FTDI_EEP_IFB_MODE (ftdi_eeprom[0] >> 8)
#define FTDI_EEP_IDVENDOR (ftdi_eeprom[1])
#define FTDI_EEP_IDPRODUCT (ftdi_eeprom[2])
#define FTDI_EEP_BCDDEVICE (ftdi_eeprom[3])
#define FTDI_EEP_PWFLAGS (ftdi_eeprom[4] & 0xff)
#define FTDI_EEP_MAXAMP (ftdi_eeprom[4] >> 8)
#define FTDI_EEP_USBFLAGS (ftdi_eeprom[5])
#define FTDI_EEP_BCDUSB (ftdi_eeprom[6])
#define FTDI_EEP_MANUF_OFF (ftdi_eeprom[7] & 0xff)
#define FTDI_EEP_MANUF_LEN (ftdi_eeprom[7] >> 8)
#define FTDI_EEP_PROD_OFF (ftdi_eeprom[8] & 0xff)
#define FTDI_EEP_PROD_LEN (ftdi_eeprom[8] >> 8)
#define FTDI_EEP_SERIAL_OFF (ftdi_eeprom[9] & 0xff)
#define FTDI_EEP_SERIAL_LEN (ftdi_eeprom[9] >> 8)
#define FTDI_EEP_CHIPTYPE (ftdi_eeprom[10])
static inline uint16_t ftdi_eeprom_checksum_init(void) {
return 0xaaaa;
}
static inline uint16_t ftdi_eeprom_checksum_digest(uint16_t val, const uint16_t* data, size_t len) {
for (size_t i = 0; i < len; ++i) {
val = (val ^ data[i]);
val = (val << 1) | (val >> 15);
}
return val;
}
static inline uint16_t ftdi_eeprom_checksum_calc(const uint16_t* data, size_t len) {
return ftdi_eeprom_checksum_digest(ftdi_eeprom_checksum_init(), data, len);
}
// USB protocol stuff
enum ftdi_request {
sio_cmd = 0,
sio_setmodemctrl = 1,
sio_setflowctrl = 2,
sio_setbaudrate = 3,
sio_setlineprop = 4,
sio_pollmodemstat = 5,
sio_seteventchar = 6,
sio_seterrorchar = 7,
sio_setlatency = 9,
sio_getlatency = 10,
sio_setbitbang = 11,
sio_readpins = 12,
sio_readeeprom = 0x90,
sio_writeeeprom = 0x91,
sio_eraseeeprom = 0x92
};
enum ftdi_sio_cmd {
sio_reset = 0,
sio_tciflush = 2,
sio_tcoflush = 1
};
enum ftdi_sio_lineprop {
sio_break_on = 1<<14,
sio_break_off = 0<<14,
sio_break__mask = 1<<14,
sio_stop_1 = 0<<11,
sio_stop_15 = 1<<11, // deprecated?
sio_stop_2 = 2<<11,
sio_stop__mask = 3<<11,
sio_parity_none = 0<<8,
sio_parity_odd = 1<<8,
sio_parity_even = 2<<8,
sio_parity_mark = 3<<8,
sio_parity_space = 4<<8,
sio_parity__mask = 7<<8,
sio_bits_7 = 7<<0,
sio_bits_8 = 8<<0,
sio_bits__mask = 0xff<<0,
};
enum ftdi_sio_modemstat {
sio_modem_cts = 1<< 4, // Clear to Send active
sio_modem_dts = 1<< 5, // Data Set Ready active
sio_modem_ri = 1<< 6, // Ring Indicator active
sio_modem_rlsd = 1<< 7, // Receive Line Signal Detect active
sio_modem_dr = 1<< 8, // Data Ready
sio_modem_oe = 1<< 9, // Overrun Error
sio_modem_pe = 1<<10, // Parity Error
sio_modem_fe = 1<<11, // Framing Error
sio_modem_bi = 1<<12, // Break Interrupt
sio_modem_thre = 1<<13, // Transmitter Holding REgister
sio_modem_temt = 1<<14, // Transmitter Empty
sio_modem_fifoerr = 1<<15 // Error in receive FIFO
};
enum ftdi_sio_bitmode {
sio_mode_reset = 0, // i.e. from EEPROM
sio_mode_bitbang = 1,
sio_mode_mpsse = 2,
sio_mode_syncbb = 4,
sio_mode_mcu = 8,
// 0x10: opto
// 0x20: cbus bitbang (R-type only)
// 0x40: sync fifo (2232h) // like regular fifo mode, but with clock output
// 0x80: ft1284 (232h, not 2232d)
};
enum ftdi_eep_defmode {
fteep_mode_uart = 0,
fteep_mode_fifo = 1,
fteep_mode_opto = 2, // not implementing this here
fteep_mode_cpu = 4,
fteep_mode_ft1284 = 8, // not impl. on 2232d, 232h-only
};
// mpsse, mcuhost commands
// if bit 7 of an MPSSE command byte
enum ftdi_mpsse_cflg {
ftmpsse_negedge_wr = 1<<0, // if 0, output bits on positive clock edige
ftmpsse_bitmode = 1<<1, // if 0, byte mode
ftmpsse_negedge_rd = 1<<2, // if 0, input bits on positive clock edge
ftmpsse_lsbfirst = 1<<3, // if 0, msb first
ftmpsse_tdiwrite = 1<<4, // 1 == do perform output
ftmpsse_tdoread = 1<<5, // 1 == do perform input
ftmpsse_tmswrite = 1<<6, // 1 == do perform output?
ftmpsse_specialcmd = 1<<7 // see below enum if set
};
// bitmode: 1 length byte, max=7 (#bits = length+1) for separate bits
// bytemode: 2 length bytes == number of bytes that follow
// both tdiwrite and tdoread high: only one length value/equal number of bits in/out!
// if both tdiwrite and tdoread are high, negedge_wr and negedge_rd must differ
// tms read/writes: readback is from tdo, bit7 in databyte is tdi output, held constant
// tdiwrite always 0, bitmode 1 in impls, can be ignored I guess
// also always lsbfirst, but not too hard to support msbfirst too
// idle levels (of eg. tms/cs) -> set_dirval?
enum ftdi_mpssemcu_cmd {
ftmpsse_set_dirval_lo = 0x80, // sets initial clock level!
ftmpsse_set_dirval_hi = 0x82,
ftmpsse_read_lo = 0x81,
ftmpsse_read_hi = 0x83,
ftmpsse_loopback_on = 0x84,
ftmpsse_loopback_off = 0x85,
ftmpsse_set_clkdiv = 0x86, // period = 12MHz / ((1 + value16) * 2)
ftmpsse_flush = 0x87, // flush dev->host usb buffer
ftmpsse_wait_io_hi = 0x88, // wait for gpiol1/io1 to be high
ftmpsse_wait_io_lo = 0x89, // wait for gpiol1/io1 to be low
// technically ft2232h-only but we can support these, too
ftmpsse_div5_disable = 0x8a, // ft2232h internally has a 5x faster clock, but slows it down by default
ftmpsse_div5_enable = 0x8b, // for backwards compat. these two commands enable/disable that slowdown
ftmpsse_data_3ph_en = 0x8c, // enable 3-phase data
ftmpsse_data_3ph_dis = 0x8d, // disable 3-phase data
ftmpsse_clockonly_bits = 0x8e, // enable clock for n bits, no data xfer
ftmpsse_clockonly_bytes = 0x8f, // enable clock for n bytes, no data xfer
ftmpsse_clock_wait_io_hi = 0x94, // wait_io_hi + clockonly
ftmpsse_clock_wait_io_lo = 0x95, // wait_io_lo + clockonly
ftmpsse_adapclk_enable = 0x96, // enable ARM JTAG adaptive clocking (rtck gpiol3 input)
ftmpsse_adapclk_disable = 0x97, // disable ARM JTAG adaptive clocking (rtck gpiol3 input)
ftmpsse_clock_bits_wait_io_hi = 0x9c, // clock_wait_io_hi + clockonly_bits
ftmpsse_clock_bits_wait_io_lo = 0x9d, // clock_wait_io_lo + clockonly_bits
ftmpsse_hi_is_tristate = 0x9e, // turns 1 output to tristate for selected outputs
ftmcu_flush = 0x87, // flush dev->host usb buffer
ftmcu_wait_io_hi = 0x88, // wait for gpiol1/io1 to be high
ftmcu_wait_io_lo = 0x89, // wait for gpiol1/io1 to be low
ftmcu_read8 = 0x90,
ftmcu_read16 = 0x91,
ftmcu_write8 = 0x92,
ftmcu_write16 = 0x93
};
// internal use only types
enum ftdi_mode { // combines EEPROM setting + bitmode
ftmode_uart = 0,
ftmode_mpsse = 1,
ftmode_asyncbb = 2,
ftmode_syncbb = 4,
ftmode_mcuhost = 8,
ftmode_fifo = 0x10,
ftmode_opto = 0x20, // not implementing this here
ftmode_cpufifo = 0x40,
ftmode_ft1284 = 0x80, // not impl. on 2232d
};
enum ftdi_flowctrl {
ftflow_none = 0,
ftflow_ctsrts = 1,
ftflow_dtrdts = 2,
ftflow_xonxoff = 4,
};
struct ftdi_interface {
// TODO soft fields maybe, because it's a mess with lots of padding right now
int index;
uint8_t modem_mask;
uint8_t modem_data;
enum ftdi_flowctrl flow;
uint32_t baudrate;
enum ftdi_sio_lineprop lineprop;
enum ftdi_sio_modemstat modemstat;
uint8_t eventchar, errorchar;
enum { eventchar_enable = 1<<0, errorchar_enable = 1<<1 } charen;
uint8_t latency; // latency timer. TODO: implement this
uint8_t bb_dir; // high/1 bit = output, 0=input
enum ftdi_sio_bitmode bb_mode;
uint16_t mcu_addr_latch;
// these are for USB bulk cmds etc.
// "write" means write to hardware output pins
// "read" means read from hardware input pins
uint8_t writebuf[CFG_TUD_VENDOR_RX_BUFSIZE];
uint8_t readbuf [CFG_TUD_VENDOR_TX_BUFSIZE];
uint8_t bufbuf [CFG_TUD_VENDOR_RX_BUFSIZE]; // for buffered IO
uint32_t rxavail, rxpos;
};
extern struct ftdi_interface ftdi_ifa, ftdi_ifb;
// interface control stuff
static inline enum ftdi_mode ftdi_get_mode_of(enum ftdi_sio_bitmode bb_mode, uint8_t eepmode) {
if (bb_mode == 0x10) return ftmode_opto;
if (bb_mode == sio_mode_reset) {
return (eepmode << 4) & 0xf0;
} else return bb_mode & 0xf;
}
static inline enum ftdi_mode ftdi_if_get_mode(struct ftdi_interface* itf) {
return ftdi_get_mode_of(itf->bb_mode, itf->index ? FTDI_EEP_IFB_MODE : FTDI_EEP_IFA_MODE);
}
uint32_t ftdi_if_decode_baudrate(uint32_t enc_brate);
// control request stuff. implemented by bsp driver
void ftdi_if_init(struct ftdi_interface* itf);
void ftdi_if_deinit(struct ftdi_interface* itf);
void ftdi_if_sio_reset(struct ftdi_interface* itf);
void ftdi_if_sio_tciflush(struct ftdi_interface* itf);
void ftdi_if_sio_tcoflush(struct ftdi_interface* itf);
void ftdi_if_set_modemctrl(struct ftdi_interface* itf, uint8_t mask, uint8_t data);
void ftdi_if_set_flowctrl(struct ftdi_interface* itf, enum ftdi_flowctrl flow);
void ftdi_if_set_baudrate(struct ftdi_interface* itf, uint32_t baudrate);
void ftdi_if_set_lineprop(struct ftdi_interface* itf, enum ftdi_sio_lineprop lineprop);
enum ftdi_sio_modemstat ftdi_if_poll_modemstat(struct ftdi_interface* itf);
void ftdi_if_set_eventchar(struct ftdi_interface* itf, bool enable, uint8_t evchar);
void ftdi_if_set_errorchar(struct ftdi_interface* itf, bool enable, uint8_t erchar);
void ftdi_if_set_latency(struct ftdi_interface* itf, uint8_t latency);
uint8_t ftdi_if_get_latency(struct ftdi_interface* itf);
void ftdi_if_set_bitbang(struct ftdi_interface* itf, uint8_t dirmask, enum ftdi_sio_bitmode,
uint8_t olddir, enum ftdi_sio_bitmode oldmode);
uint8_t ftdi_if_read_pins(struct ftdi_interface* itf);
// bulk commands (also implemented by bsp driver)
// "write" means write to hardware output pins
// "read" means read from hardware input pins
void ftdi_if_uart_write(struct ftdi_interface* itf, const uint8_t* data, size_t datasize);
size_t ftdi_if_uart_read (struct ftdi_interface* itf, uint8_t* data, size_t maxsize);
void ftdi_if_fifo_write(struct ftdi_interface* itf, const uint8_t* data, size_t datasize);
size_t ftdi_if_fifo_read (struct ftdi_interface* itf, uint8_t* data, size_t maxsize);
void ftdi_if_cpufifo_write(struct ftdi_interface* itf, const uint8_t* data, size_t datasize);
size_t ftdi_if_cpufifo_read (struct ftdi_interface* itf, uint8_t* data, size_t maxsize);
void ftdi_if_asyncbb_write(struct ftdi_interface* itf, const uint8_t* data, size_t datasize);
size_t ftdi_if_asyncbb_read (struct ftdi_interface* itf, uint8_t* data, size_t maxsize);
void ftdi_if_syncbb_write (struct ftdi_interface* itf, const uint8_t* data, size_t datasize);
size_t ftdi_if_syncbb_read (struct ftdi_interface* itf, uint8_t* data, size_t maxsize);
void ftdi_if_mpsse_flush(struct ftdi_interface* itf);
void ftdi_if_mpsse_wait_io(struct ftdi_interface* itf, bool level);
void ftdi_if_mpsse_set_dirval_lo(struct ftdi_interface* itf, uint8_t dir, uint8_t val);
void ftdi_if_mpsse_set_dirval_hi(struct ftdi_interface* itf, uint8_t dir, uint8_t val);
uint8_t ftdi_if_mpsse_read_lo(struct ftdi_interface* itf);
uint8_t ftdi_if_mpsse_read_hi(struct ftdi_interface* itf);
void ftdi_if_mpsse_loopback(struct ftdi_interface* itf, bool enable);
void ftdi_if_mpsse_set_clkdiv(struct ftdi_interface* itf, uint16_t div);
uint8_t ftdi_if_mpsse_xfer_bits(struct ftdi_interface* itf, int flags, size_t nbits, uint8_t value);
void ftdi_if_mpsse_xfer_bytes(struct ftdi_interface* itf, int flags, size_t nbytes, uint8_t* dst, const uint8_t* src);
uint8_t ftdi_if_mpsse_tms_xfer(struct ftdi_interface* itf, int flags, size_t nbits, uint8_t value);
void ftdi_if_mpsse_div5(struct ftdi_interface* itf, bool enable);
void ftdi_if_mpsse_data_3ph(struct ftdi_interface* itf, bool enable);
void ftdi_if_mpsse_adaptive(struct ftdi_interface* itf, bool enable);
void ftdi_if_mpsse_clockonly(struct ftdi_interface* itf, uint32_t cycles);
void ftdi_if_mpsse_clock_wait_io(struct ftdi_interface* itf, bool level);
void ftdi_if_mpsse_clockonly_wait_io(struct ftdi_interface* itf, bool level, uint32_t cycles);
void ftdi_if_mpsse_hi_is_tristate(struct ftdi_interface* itf, uint16_t pinmask);
void ftdi_if_mcuhost_flush(struct ftdi_interface* itf);
void ftdi_if_mcuhost_wait_io(struct ftdi_interface* itf, bool level);
uint8_t ftdi_if_mcuhost_read8 (struct ftdi_interface* itf, uint8_t addr);
uint8_t ftdi_if_mcuhost_read16(struct ftdi_interface* itf, uint16_t addr);
void ftdi_if_mcuhost_write8 (struct ftdi_interface* itf, uint8_t addr, uint8_t value);
void ftdi_if_mcuhost_write16(struct ftdi_interface* itf, uint16_t addr, uint8_t value);
void ftdi_if_uart_init(struct ftdi_interface* itf);
void ftdi_if_mpsse_init(struct ftdi_interface* itf);
void ftdi_if_asyncbb_init(struct ftdi_interface* itf);
void ftdi_if_syncbb_init(struct ftdi_interface* itf);
void ftdi_if_mcuhost_init(struct ftdi_interface* itf);
void ftdi_if_fifo_init(struct ftdi_interface* itf);
void ftdi_if_cpufifo_init(struct ftdi_interface* itf);
void ftdi_if_uart_deinit(struct ftdi_interface* itf);
void ftdi_if_mpsse_deinit(struct ftdi_interface* itf);
void ftdi_if_asyncbb_deinit(struct ftdi_interface* itf);
void ftdi_if_syncbb_deinit(struct ftdi_interface* itf);
void ftdi_if_mcuhost_deinit(struct ftdi_interface* itf);
void ftdi_if_fifo_deinit(struct ftdi_interface* itf);
void ftdi_if_cpufifo_deinit(struct ftdi_interface* itf);
void ftdi_if_uart_set_baudrate(struct ftdi_interface* itf, uint32_t baudrate);
void ftdi_if_mpsse_set_baudrate(struct ftdi_interface* itf, uint32_t baudrate);
void ftdi_if_asyncbb_set_baudrate(struct ftdi_interface* itf, uint32_t baudrate);
void ftdi_if_syncbb_set_baudrate(struct ftdi_interface* itf, uint32_t baudrate);
void ftdi_if_mcuhost_set_baudrate(struct ftdi_interface* itf, uint32_t baudrate);
void ftdi_if_fifo_set_baudrate(struct ftdi_interface* itf, uint32_t baudrate);
void ftdi_if_cpufifo_set_baudrate(struct ftdi_interface* itf, uint32_t baudrate);
#endif

View File

@ -3,6 +3,7 @@
#include <tusb.h>
#include "mode.h"
#include "storage.h"
#include "thread.h"
#include "usbstdio.h"
#include "vnd_cfg.h"
@ -20,6 +21,8 @@ enum m_sump_feature {
msump_feat_sump = 1<<0,
};
static bool data_dirty = false;
#ifdef DBOARD_HAS_SUMP
static cothread_t sumpthread;
static uint8_t sumpstack[THREAD_STACK_SIZE];
@ -44,6 +47,16 @@ static void enter_cb(void) {
sumpthread = co_derive(sumpstack, sizeof sumpstack, sump_thread_fn);
thread_enter(sumpthread);
#endif
if (!data_dirty) { // only read when not read yet
struct mode_info mi = storage_mode_get_info(4);
if (mi.size != 0 && mi.version == 0x0010 /* TODO: version migration? */) {
uint8_t dst[1];
storage_mode_read(4, dst, 0, 1);
sump_hw_set_overclock(dst[0]);
}
}
}
static void leave_cb(void) {
#ifdef DBOARD_HAS_SUMP
@ -133,7 +146,6 @@ enum {
#define EPNUM_CDC_STDIO_NOTIF 0x85
// clang-format off
// TODO: replace magic 64s by actual buffer size macros
static const uint8_t desc_configuration[] = {
TUD_CONFIG_DESCRIPTOR(1, ITF_NUM__TOTAL, STRID_CONFIG, CONFIG_TOTAL_LEN,
TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
@ -178,6 +190,17 @@ static void my_cdc_line_coding_cb(uint8_t itf, cdc_line_coding_t const* line_cod
}
#endif
static uint16_t my_get_size(void) { return 1; }
static void my_get_data(void* dst, size_t offset, size_t maxsize) {
(void)offset; (void)maxsize;
uint8_t* d = dst;
d[0] = sump_hw_get_overclock();
data_dirty = false;
}
static bool my_is_dirty(void) { return data_dirty; }
extern struct mode m_04_sump;
// clang-format off
struct mode m_04_sump = {
@ -188,6 +211,13 @@ struct mode m_04_sump = {
.usb_desc = desc_configuration,
.string_desc = string_desc_arr,
.storage = {
.stclass = mode_storage_32b,
.get_size = my_get_size,
.get_data = my_get_data,
.is_dirty = my_is_dirty
},
.enter = enter_cb,
.leave = leave_cb,
.task = task_cb,

View File

@ -7,6 +7,7 @@
#include "tusb.h"
#include "mode.h"
#include "storage.h"
#include "thread.h"
#include "usbstdio.h"
#include "vnd_cfg.h"
@ -24,6 +25,8 @@ static void vndcfg_thread_fn(void) {
}
int main() {
stdio_uart_init();
thread_init();
board_init(); // tinyusb hardware support function
@ -31,15 +34,24 @@ int main() {
vndcfg_thread = co_derive(vndcfg_stack, sizeof vndcfg_stack, vndcfg_thread_fn);
thread_enter(vndcfg_thread);
modes_init();
#if defined(PERSISTENT_STORAGE) && defined(DBOARD_HAS_STORAGE)
int startupmode = storage_init();
#else
int startupmode = -1;
#endif
// FIXME: put elsewhere?
#ifdef USE_USBCDC_FOR_STDIO
stdio_usb_set_itf_num(0);
#endif
modes_init(startupmode);
if (mode_current) mode_current->enter();
tusb_init();
// FIXME: put elsewhere?
#ifdef USE_USBCDC_FOR_STDIO
stdio_usb_set_itf_num(0);
stdio_usb_init();
#endif

View File

@ -9,6 +9,8 @@
#include "tusb_config.h"
#include <tusb.h>
#include "storage.h"
// clang-format off
struct mode {
@ -19,6 +21,8 @@ struct mode {
const uint8_t* usb_desc;
const char** string_desc;
struct mode_storage storage;
void (*enter)(void); // claim required hardware. no tusb calls here please
void (*leave)(void); // release current in-use hardware. no tusb calls here please
void (*task )(void);
@ -35,7 +39,7 @@ struct mode {
void (*tud_cdc_line_coding_cb)(uint8_t itf, cdc_line_coding_t const* line_coding);
#endif
//#if CFG_TUD_VENDOR > 0
bool (*tud_vendor_control_xfer_cb)(uint8_t rhport, uint8_t ep_addr,
bool (*tud_vendor_control_xfer_cb)(uint8_t rhport, uint8_t stage,
tusb_control_request_t const* req);
//#endif
@ -46,8 +50,9 @@ struct mode {
};
// call this BEFORE tusb_init!
void modes_init(void);
void modes_init(int init_mode);
// IMMEDIATELY switches mode. use "mode_next_id' to do a graceful switch
void modes_switch(uint8_t newmode);
extern int mode_current_id;

View File

@ -5,8 +5,9 @@
#include "alloc.h"
#include "board.h" /* bsp_reset_bootloader() */
#include "mode.h"
#include "storage.h"
extern struct mode m_01_default, m_03_jscan, m_04_sump;
extern struct mode m_01_default, m_03_jscan, m_04_sump, m_05_ftdi;
// clang-format off
const struct mode* const mode_list[16] = {
@ -15,6 +16,7 @@ const struct mode* const mode_list[16] = {
NULL, // mode 2 (hw chip programming stuff) not implemented yet
&m_03_jscan,
&m_04_sump,
&m_05_ftdi,
NULL, // terminating entry
};
// clang-format on
@ -37,9 +39,13 @@ enum tusbgot_index {
#define ORDEF(a,b) ((a != NULL) ? a : b)
void modes_init(void) {
void modes_init(int newid) {
if (newid < 0 || newid >= 16 || mode_list[newid] == NULL) {
// switch to the default mode, but without doing a USB reboot thing
mode_current_id = &mode_default - mode_list;
} else {
mode_current_id = newid;
}
mode_next_id = -1;
//if (!mode_default) return;
@ -94,6 +100,8 @@ void modes_switch(uint8_t newmode) {
// maybe wait a second or so for the host to notice this
sleep_ms(500/2);
printf("disconnect\n");
if (newmode == 0) bsp_reset_bootloader();
// now apply the new tusb settings
@ -159,11 +167,25 @@ void modes_switch(uint8_t newmode) {
// clang-format on
}
printf("reconnect\n");
// and reconnect
tud_connect();
sleep_ms(500/2);
//while (!tud_mounted()) sleep_ms(5);
printf("enter\n");
if (mode_current) mode_current->enter();
}
#if defined(PERSISTENT_STORAGE) && defined(DBOARD_HAS_STORAGE)
void tud_umount_cb(void) {
storage_flush_data();
}
void tud_suspend_cb(bool remote_wakeup_en) {
(void)remote_wakeup_en;
storage_flush_data();
}
#endif

194
src/storage.c Normal file
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@ -0,0 +1,194 @@
// vim: set et:
#include "bsp-info.h"
#include "bsp-storage.h"
#include "mode.h"
#include "storage.h"
#if !defined(PERSISTENT_STORAGE) || !defined(DBOARD_HAS_STORAGE)
int storage_init(void) { return -1; }
bool storage_flush_data(void) { return false; }
struct mode_info storage_mode_get_info(int _) {
(void)_; return (struct mode_info){ .size = 0, .version = 0 };
}
void storage_mode_read(int _, void* __, size_t ___, size_t ____) {
(void)_; (void)__; (void)___; (void)____;
}
#else
#include "storage_internal.h"
uint32_t str_hash_djb2_digest(uint32_t hash, const void* data, size_t len) {
const uint8_t* d = data;
for (size_t i = 0; i < len; ++i) hash += hash * 33 + d[i];
return hash;
}
bool header_valid = false;
struct storage_header header_tmp;
uint8_t data_tmp[256];
uint16_t mode_bad = 0;
static int in_init = 0;
static void storage_init_defaults(void) {
memcpy(header_tmp.magic, STORAGE_MAGIC, STORAGE_MAGIC_LEN);
header_tmp.fwversion = STORAGE_VER;
header_tmp.curmode = mode_current_id;
header_tmp.nmodes = 0;
memset(header_tmp.reserved, 0xff, sizeof(header_tmp.reserved));
memset(header_tmp.mode_data_table, 0xff, sizeof(header_tmp.mode_data_table));
header_tmp.table_djb2 = str_hash_djb2(header_tmp.mode_data_table,
sizeof(struct mode_data)*MAX_MDT_ELEMENTS);
header_valid = true;
}
int storage_init(void) {
++in_init;
mode_bad = 0;
storage_read(&header_tmp, STORAGE_SIZE - sizeof(struct storage_header),
sizeof(struct storage_header));
bool bad = false;
if (memcmp(header_tmp.magic, STORAGE_MAGIC, STORAGE_MAGIC_LEN)) {
storage_init_defaults();
if (in_init == 1) storage_flush_data();
--in_init;
return -1;
}
if (header_tmp.fwversion != STORAGE_VER) {
// TODO: migrate... if there were any older versions
header_valid = false;
--in_init;
return -1;
}
if (header_tmp.nmodes >= 16) bad = true;
else if (str_hash_djb2(header_tmp.mode_data_table,
sizeof(struct mode_data)*MAX_MDT_ELEMENTS) != header_tmp.table_djb2)
bad = true;
else if (header_tmp.curmode >= 16 || header_tmp.curmode == 0
|| mode_list[header_tmp.curmode] == NULL)
bad = true;
if (bad) {
storage_init_defaults();
if (in_init == 1) storage_flush_data();
--in_init;
return -1;
}
header_valid = true;
--in_init;
return header_tmp.curmode;
}
struct mode_info storage_mode_get_info(int mode) {
#define DEF_RETVAL ({ \
if (mode < 16 && mode > 0 && header_valid && header_tmp.nmodes != 0) mode_bad |= 1<<mode; \
(struct mode_info){ .size = 0, .version = 0 }; \
}) \
if (mode >= 16 || !header_valid || mode <= 0 || header_tmp.nmodes == 0)
return DEF_RETVAL;
for (size_t i = 0; i < header_tmp.nmodes; ++i) {
struct mode_data md = header_tmp.mode_data_table[i];
int mdmode = (uint8_t)(md.offsetandmode >> 28);
uint16_t mdsize = md.datasize;
uint32_t mdoffset = md.offsetandmode & ((1<<28)-1);
if (mdmode != mode) continue;
if (mdsize == 0xffff || md.version == 0xffff || md.offsetandmode == 0xffffffffu)
continue; // empty (wut?)
// found it!
if (mdsize == 0) return DEF_RETVAL; // no data stored
if (mdoffset == 0 || mdoffset >= STORAGE_SIZE)
return DEF_RETVAL; // bad offset
// program code collision cases
if (mdoffset < storage_get_program_offset() && mdoffset+mdsize >=
storage_get_program_offset()) return DEF_RETVAL;
if (mdoffset < storage_get_program_offset()+storage_get_program_size()
&& mdoffset+mdsize >= storage_get_program_offset()+storage_get_program_size())
return DEF_RETVAL;
if (mdoffset >= storage_get_program_offset()
&& mdoffset+mdsize <= storage_get_program_offset()+storage_get_program_size())
return DEF_RETVAL;
// now check whether the data hash is corrupted
uint32_t hash = str_hash_djb2_init();
for (size_t i = 0; i < mdsize; i += sizeof(data_tmp)) {
size_t toread = sizeof(data_tmp);
if (mdsize - i < toread) toread = mdsize - i;
storage_read(data_tmp, mdoffset + i, toread);
hash = str_hash_djb2_digest(hash, data_tmp, toread);
}
if (hash != md.data_djb2) return DEF_RETVAL;
return (struct mode_info) {
.size = mdsize,
.version = md.version
};
}
return DEF_RETVAL;
#undef DEF_RETVAL
}
void storage_mode_read(int mode, void* dst, size_t offset, size_t maxlen) {
<<<<<<< HEAD
if (mode >= 16 || !header_valid || mode <= 0 || header_tmp.nmodes == 0) return;
=======
if (mode >= 16 || !header_valid || mode <= 0) return;
>>>>>>> 62e3181 (PERSISTENT_STORAGE usage flag)
for (size_t i = 0; i < header_tmp.nmodes; ++i) {
struct mode_data md = header_tmp.mode_data_table[i];
int mdmode = (uint8_t)(md.offsetandmode >> 28);
uint16_t mdsize = md.datasize;
uint32_t mdoffset = md.offsetandmode & ((1<<28)-1);
if (mdmode != mode) continue;
if (mdsize == 0xffff || md.version == 0xffff || md.offsetandmode == 0xffffffffu)
continue; // empty (wut?)
// found it!
if (mdsize == 0) { mode_bad |= 1<<mode; return; /* no data stored */ }
if (mdoffset == 0 || mdoffset >= STORAGE_SIZE) {
mode_bad |= 1<<mode; return; /* bad offset */
}
// program code collision cases
if (mdoffset < storage_get_program_offset() && mdoffset+mdsize >=
storage_get_program_offset()) { mode_bad |= 1<<mode; return; }
if (mdoffset < storage_get_program_offset()+storage_get_program_size()
&& mdoffset+mdsize >= storage_get_program_offset()+storage_get_program_size()) {
mode_bad |= 1<<mode; return;
}
if (mdoffset >= storage_get_program_offset()
&& mdoffset+mdsize <= storage_get_program_offset()+storage_get_program_size()) {
mode_bad |= 1<<mode; return;
}
if (offset >= mdsize) return;
// skip hash check in this case
storage_read(dst, mdoffset + offset, mdsize < maxlen ? mdsize : maxlen);
return;
}
}
#endif /* BOARD_HAS_STORAGE */

50
src/storage.h Normal file
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@ -0,0 +1,50 @@
// vim: set et:
#ifndef STORAGE_H_
#define STORAGE_H_
#include <stddef.h>
#include <stdint.h>
#define STORAGE_VER 0x0010
enum mode_storage_class {
mode_storage_none, // this mode has no storage
mode_storage_32b , // this mode typically won't use more than 32 bytes of data
mode_storage_128b, // this mode typically won't use more than 128 bytes of data
mode_storage_512b, // this mode typically won't use more than 512 bytes of data
mode_storage_big // this mode uses a lot of data
};
// mode callbacks used by the storage subsystem
struct mode_storage {
enum mode_storage_class stclass;
uint16_t (*get_size)(void);
// if stclass < 512b, offset & maxsize can be ignored
void (*get_data)(void* dst, size_t offset, size_t maxsize);
bool (*is_dirty)(void); // if data was changed since last mode_read/get_data call
};
struct mode_info {
uint32_t size;
uint16_t version;
};
// functions mode-specific code can use to retrieve the save data
struct mode_info storage_mode_get_info(int mode); // returns size=0 for none found
void storage_mode_read(int mode, void* dst, size_t offset, size_t maxlen);
// global functions
// reads all data, creates table if needed
int storage_init(void);
// flush edits if anything has been edited
bool storage_flush_data(void);
bool storage_priv_mode_has(int mode);
void* storage_priv_get_header_ptr(void);
#endif

74
src/storage_internal.h Normal file
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@ -0,0 +1,74 @@
// vim: set et:
#ifndef STORAGE_INTERNAL_H_
#define STORAGE_INTERNAL_H_
inline static uint32_t str_hash_djb2_init(void) {
return 5381;
}
uint32_t str_hash_djb2_digest(uint32_t hash, const void* data, size_t len);
inline static uint32_t str_hash_djb2(const void* data, size_t len) {
return str_hash_djb2_digest(str_hash_djb2_init(), data, len);
}
/*
* storage header (in last 256b of flash) (endianness is whatever is native to the device):
*
* 3 7 b f
* --+----------------------------------------------------+
* 0 | f0 9f 8f b3 ef b8 8f e2 80 8d e2 9a a7 ef b8 8f | magic number
* 10 | fwver mm nm <reserved (0xff) > <tbl djb2> | fwver: current version (bcd)
* 20 | <mode data table ...> | mm: current mode, nm: number of modes saved (~size of "mode data table")
* 30 | | tbl djb2: djb2-hash of "mode data table" (entire table, not nmodes)
* 40 | <reserved (0xff) ...> | empty "mode data table" entries are 0xff-filled
*
* mode data table: array of:
* struct mode_data {
* uint16_t version;
* uint16_t datasize;
* uint28_t flashoffset; // from beginning of flash
* uint4_t modeid;
* uint32_t data_djb2;
* };
*
* mode data blobs are typically allocated smallest to largest (according to
* mode_storage_class), from the last page of flash (cf. bsp-storage.h) down
*/
#define STORAGE_MAGIC "\xf0\x9f\x8f\xb3\xef\xb8\x8f\xe2\x80\x8d\xe2\x9a\xa7\xef\xb8\x8f"
#define STORAGE_MAGIC_LEN 16
__attribute__((__packed__)) struct mode_data {
uint16_t version;
uint16_t datasize;
uint32_t offsetandmode; // mode ID stored in MSNybble
uint32_t data_djb2;
};
#define MAX_MDT_ELEMENTS ((256 - 64) / sizeof(struct mode_data)) /* should be 16 */
__attribute__((__packed__)) struct storage_header {
// +0
uint8_t magic[STORAGE_MAGIC_LEN];
// +16
uint16_t fwversion;
uint8_t curmode;
uint8_t nmodes; // *stored* modes, not modes it knows of
uint8_t reserved[8];
uint32_t table_djb2;
// +32
struct mode_data mode_data_table[MAX_MDT_ELEMENTS]; // 192 bytes in size
// +224
uint8_t reserved2[32];
};
// TODO: static assert sizeof(struct storage_header) == 256
// TODO: static assert MAX_MDT_ELEMENTS >= 16
extern bool header_valid;
extern struct storage_header header_tmp;
extern uint8_t data_tmp[256];
extern uint16_t mode_bad;
#endif

172
src/storage_save.c Normal file
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@ -0,0 +1,172 @@
// vim: set et:
#include "bsp-info.h"
#include "bsp-storage.h"
#include "mode.h"
#include "storage.h"
#if defined(PERSISTENT_STORAGE) && defined(DBOARD_HAS_STORAGE)
#include "storage_internal.h"
bool storage_priv_mode_has(int i) {
if (mode_list[i]->storage.stclass == mode_storage_none) return false;
if (mode_list[i]->storage.get_size == NULL) return false;
if (mode_list[i]->storage.get_data == NULL) return false;
if (mode_list[i]->storage.is_dirty == NULL) return false;
return true;
}
void* storage_priv_get_header_ptr(void) {
return &header_tmp;
}
static struct mode_storage msto[16];
static size_t storage_allocate_new(void) {
static const size_t stclass_sz[] = { 0, 32, 128, 512, 0xffffffff };
memcpy(header_tmp.magic, STORAGE_MAGIC, STORAGE_MAGIC_LEN);
memset(header_tmp.reserved, 0xff, sizeof(header_tmp.reserved));
memset(header_tmp.reserved2, 0xff, sizeof(header_tmp.reserved2));
memset(header_tmp.mode_data_table, 0xff, sizeof(header_tmp.mode_data_table));
header_tmp.fwversion = STORAGE_VER;
header_tmp.curmode = mode_current_id;
header_tmp.nmodes = 0;
size_t current_page = STORAGE_SIZE - STORAGE_ERASEWRITE_ALIGN,
current_page_end = STORAGE_SIZE - sizeof(struct storage_header);
size_t current_wrhead = current_page;
size_t npages = 1;
for (enum mode_storage_class stcls = mode_storage_32b; stcls <= mode_storage_big; ++stcls) {
for (int mode = 1; mode < 16; ++mode) {
if (mode_list[mode] == NULL || !storage_priv_mode_has(mode)) continue;
if (mode_list[mode]->storage.stclass != stcls) continue;
// too big for the class? don't write the data, then
uint16_t dsize = mode_list[mode]->storage.get_size();
if (dsize > stclass_sz[stcls]) continue;
if (current_wrhead + dsize > current_page_end) { // FIXME: data that is >1 page size (do we want to support this?)
current_page_end = current_page;
current_page -= STORAGE_ERASEWRITE_ALIGN;
current_wrhead = current_page;
++npages;
if (current_page < storage_get_program_offset() + storage_get_program_size())
return 0; // welp, out of space
}
struct mode_data* md = &header_tmp.mode_data_table[header_tmp.nmodes];
md->version = mode_list[mode]->version;
md->datasize = dsize;
md->offsetandmode = current_wrhead | ((uint32_t)mode << 28);
msto[header_tmp.nmodes] = mode_list[mode]->storage; // copy to RAM because mode_list is in rodata!
current_wrhead += stclass_sz[stcls];
uint32_t hash = str_hash_djb2_init();
for (size_t i = 0; i < dsize; i += sizeof(data_tmp)) {
size_t tohash = sizeof(data_tmp);
if (dsize - i < tohash) tohash = dsize - i;
mode_list[mode]->storage.get_data(data_tmp, i, tohash);
hash = str_hash_djb2_digest(hash, data_tmp, tohash);
}
md->data_djb2 = hash;
++header_tmp.nmodes;
}
}
header_tmp.table_djb2 = str_hash_djb2(header_tmp.mode_data_table,
sizeof(header_tmp.mode_data_table));
return npages;
}
static void st_safe_memcpy(void* dst, const void* src, size_t size) {
const uint64_t* s = src;
uint64_t* d = dst;
for (size_t i = 0; i < (size>>3); ++i) {
d[i] = s[i];
asm volatile("":::"memory");
}
if (size & 7) {
for (size_t i = (size>>3)<<3; i < size; ++i) {
((uint8_t*)dst)[i] = ((const uint8_t*)src)[i];
asm volatile("":::"memory");
}
}
}
static void storage_serialize_xip(size_t page,
size_t pagestart, size_t pageend, void* dest) {
if (page == 0) {
st_safe_memcpy((uint8_t*)dest + pageend - pagestart,
&header_tmp, sizeof(struct storage_header));
}
for (size_t i = 0; i < header_tmp.nmodes; ++i) {
struct mode_data* md = &header_tmp.mode_data_table[i];
uint32_t mdoffset = md->offsetandmode & ((1<<28)-1);
uint32_t mdsize = md->datasize;
if (mdoffset < pagestart || mdoffset + mdsize >= pageend)
continue; // must be fully within the page
msto[i].get_data((uint8_t*)dest + mdoffset - pagestart, 0, mdsize);
}
}
static void storage_write_data(void) {
size_t npages = storage_allocate_new();
if (npages == 0) {
storage_init();
return; // TODO: error, somehow
}
static uint8_t base[STORAGE_ERASEWRITE_ALIGN]; // TODO FIXME: HUGE RAM HOG!
size_t current_page = STORAGE_SIZE - STORAGE_ERASEWRITE_ALIGN,
current_page_end = STORAGE_SIZE - sizeof(struct storage_header);
for (size_t page = 0; page < npages; ++page) {
storage_serialize_xip(page, current_page, current_page_end, base);
if (!storage_erasewrite(current_page, base, STORAGE_ERASEWRITE_ALIGN)) {
storage_init();
return; // TODO: error, somehow
}
current_page_end = current_page;
current_page -= STORAGE_ERASEWRITE_ALIGN;
}
// TODO:
// * save on a timer event?
// * try to save when unplugging???
}
bool storage_flush_data(void) {
if (mode_bad != 0 || mode_current_id != header_tmp.curmode) {
storage_write_data();
return true;
} else for (int i = 1; i < 16; ++i) {
if (mode_list[i] == NULL || !storage_priv_mode_has(i)) continue;
if (mode_list[i]->storage.is_dirty()) {
storage_write_data();
return true;
}
}
return false;
}
#endif

View File

@ -13,5 +13,7 @@ void stdio_usb_set_itf_num(int itf);
void stdio_usb_line_coding_cb(cdc_line_coding_t const* line_coding);
#endif
void stdio_uart_init(void);
#endif

View File

@ -18,6 +18,8 @@ static uint32_t rxavail, rxpos, txpos;
static int VND_N_CFG = 0;
extern uint8_t data_tmp[256];
void vnd_cfg_init(void) {
rxavail = 0;
rxpos = 0;
@ -125,6 +127,8 @@ void vnd_cfg_task(void) {
uint8_t cmd = vnd_cfg_read_byte();
uint8_t verbuf[2];
//printf("vcfg %02x\n", cmd);
if (cmd & 0xf0) {
uint8_t mode = (uint8_t)(cmd & 0xf0) >> 4;
uint8_t mcmd = cmd & 0x0f;
@ -191,11 +195,54 @@ void vnd_cfg_task(void) {
case cfg_cmd_get_infostr:
vnd_cfg_write_str(cfg_resp_ok, INFO_PRODUCT(INFO_BOARDNAME));
break;
#if defined(PERSISTENT_STORAGE) && defined(DBOARD_HAS_STORAGE)
case cfg_cmd_storage_get_header:
vnd_cfg_write_resp(cfg_resp_ok, 256, storage_priv_get_header_ptr());
break;
case cfg_cmd_storage_get_modedata:
verbuf[0] = vnd_cfg_read_byte();
if (verbuf[0] == 0 || verbuf[0] >= 16 || mode_list[verbuf[0]] == NULL) {
vnd_cfg_write_resp(cfg_resp_nosuchmode, 0, NULL);
} else if (!storage_priv_mode_has(verbuf[0])) {
vnd_cfg_write_resp(cfg_resp_badarg, 0, NULL);
} else {
uint32_t len = storage_mode_get_info(verbuf[0]).size;
vnd_cfg_write_byte(cfg_resp_ok);
if (len < (1<<7)) {
vnd_cfg_write_byte(len);
} else if (len < (1<<14)) {
vnd_cfg_write_byte((len & 0x7f) | 0x80);
vnd_cfg_write_byte((len >> 7) & 0x7f);
} else {
vnd_cfg_write_byte((len & 0x7f) | 0x80);
vnd_cfg_write_byte(((len >> 7) & 0x7f) | 0x80);
vnd_cfg_write_byte(((len >> 14) & 0x7f));
}
for (size_t i = 0; i < len; i += sizeof data_tmp) {
size_t tosend = sizeof data_tmp;
if (tosend > len - i) tosend = len - i;
storage_mode_read(verbuf[0], data_tmp, i, tosend);
for (size_t ii = 0; ii < tosend; ++ii)
vnd_cfg_write_byte(data_tmp[ii]);
}
vnd_cfg_write_flush();
}
break;
case cfg_cmd_storage_flush_data:
verbuf[0] = storage_flush_data() ? 1 : 0;
vnd_cfg_write_resp(cfg_resp_ok, 1, verbuf);
break;
#endif
default:
vnd_cfg_write_resp(cfg_resp_illcmd, 0, NULL);
break;
}
}
//printf("vnd cfg cmd=%02x done\n", cmd);
}
#else /* CFG_TUD_VENDOR == 0 */
void vnd_cfg_init(void) { }

View File

@ -30,6 +30,12 @@ enum cfg_cmd {
cfg_cmd_get_cur_mode = 0x02,
cfg_cmd_set_cur_mode = 0x03,
cfg_cmd_get_infostr = 0x04,
#if defined(PERSISTENT_STORAGE) && defined(DBOARD_HAS_STORAGE)
cfg_cmd_storage_get_header = 0x0c,
cfg_cmd_storage_get_modedata = 0x0d,
cfg_cmd_storage_flush_data = 0x0e,
#endif
};
// common commands for every mode