sw: minor removal of unused code
Signed-off-by: Sean Cross <sean@xobs.io>
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93
sw/src/dfu.c
93
sw/src/dfu.c
@ -29,6 +29,8 @@
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#include <dfu.h>
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#include <rgb.h>
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#define RESCUE_IMAGE_OFFSET 262144
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#define ERASE_SIZE 65536 // Erase block size (in bytes)
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#define WRITE_SIZE 256 // Number of bytes we can write
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@ -113,7 +115,7 @@ static void ftfl_begin_program_section(uint32_t address)
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static uint32_t address_for_block(unsigned blockNum)
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{
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static const uint32_t starting_offset = 262144;
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static const uint32_t starting_offset = RESCUE_IMAGE_OFFSET;
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return starting_offset + (blockNum * WRITE_SIZE);
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}
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@ -127,19 +129,9 @@ uint8_t dfu_getstate(void)
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return dfu_state;
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}
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unsigned last_blockNum;
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unsigned last_blockLength;
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unsigned last_packetOffset;
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unsigned last_packetLength;
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bool dfu_download(unsigned blockNum, unsigned blockLength,
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unsigned packetOffset, unsigned packetLength, const uint8_t *data)
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{
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// uint32_t i;
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last_packetLength = packetLength;
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last_packetOffset = packetOffset;
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last_blockLength = blockLength;
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last_blockNum = blockNum;
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if (packetOffset + packetLength > DFU_TRANSFER_SIZE ||
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packetOffset + packetLength > blockLength) {
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@ -179,74 +171,6 @@ bool dfu_download(unsigned blockNum, unsigned blockLength,
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fl_current_addr = address_for_block(blockNum);
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dfu_bytes_remaining = blockLength;
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#if 0
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// If it's the first block, figure out what we need to do in terms of erasing
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// data and programming the new file.
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if (blockNum == 0) {
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const struct toboot_configuration *old_config = tb_get_config();
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// Don't allow overwriting Toboot itself.
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if (fl_current_addr < tb_first_free_address()) {
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set_state(dfuERROR, errADDRESS);
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return false;
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}
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// Calculate generation number and hash
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if (tb_state.version == 2) {
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struct toboot_configuration *new_config = (struct toboot_configuration *)&dfu_buffer[0x94 / 4];
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// Update generation number
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new_config->reserved_gen = old_config->reserved_gen + 1;
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// Ensure we know this header is not fake
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new_config->config &= ~TOBOOT_CONFIG_FAKE;
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// Generate a valid signature
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tb_sign_config(new_config);
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}
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// If the old configuration requires that certain blocks be erased, do that.
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tb_state.clear_hi = old_config->erase_mask_hi;
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tb_state.clear_lo = old_config->erase_mask_lo;
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tb_state.clear_current = 0;
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// Ensure we don't erase Foboot itself
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for (i = 0; i < tb_first_free_sector(); i++) {
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if (i < 32)
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tb_state.clear_lo &= ~(1 << i);
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else
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tb_state.clear_hi &= ~(1 << i);
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}
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// If the newly-loaded program does not conform to Foboot V2.0, then look
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// for any existing programs on the flash and delete those sectors.
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// Because of boot priority, we need to ensure that no V2.0 applications
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// exist on flash.
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if (tb_state.version < 2) {
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for (i = tb_first_free_sector(); i < 64; i++) {
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if (tb_valid_signature_at_page(i) < 0)
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continue;
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if (i < 32)
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tb_state.clear_lo |= (1 << i);
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else
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tb_state.clear_hi |= (1 << (i - 32));
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}
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}
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// If we still have sectors to clear, do that. Otherwise,
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// go straight into loading the program.
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if (tb_state.clear_lo || tb_state.clear_hi) {
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tb_state.state = tbsCLEARING;
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tb_state.next_addr = fl_current_addr;
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pre_clear_next_block();
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}
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else {
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tb_state.state = tbsLOADING;
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ftfl_begin_erase_sector(fl_current_addr);
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}
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}
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else
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#endif
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ftfl_begin_erase_sector(fl_current_addr);
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set_state(dfuDNLOAD_SYNC, OK);
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@ -266,15 +190,8 @@ static void fl_state_poll(void)
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break;
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case flsERASING:
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// // If we're still pre-clearing, continue with that.
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// if (tb_state.state == tbsCLEARING) {
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// pre_clear_next_block();
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// }
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// // Done! Move on to programming the sector.
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// else {
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fl_state = flsPROGRAMMING;
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ftfl_begin_program_section(fl_current_addr);
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// }
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break;
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case flsPROGRAMMING:
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@ -299,8 +216,6 @@ bool dfu_getstatus(uint8_t status[8])
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case dfuDNLOAD_SYNC:
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case dfuDNBUSY:
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// Programming operation in progress. Advance our private flash state machine.
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// fl_state_poll();
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if (dfu_state == dfuERROR) {
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// An error occurred inside fl_state_poll();
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@ -343,6 +258,8 @@ bool dfu_clrstatus(void)
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switch (dfu_state) {
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case dfuERROR:
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case dfuIDLE:
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case dfuMANIFEST_WAIT_RESET:
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// Clear an error
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set_state(dfuIDLE, OK);
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return true;
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@ -22,6 +22,7 @@ void usb_setup(struct usb_device *dev, const struct usb_setup_request *setup)
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{
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case 0x0500: // SET_ADDRESS
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case 0x0b01: // SET_INTERFACE
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dfu_clrstatus();
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break;
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case 0x0900: // SET_CONFIGURATION
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