cesanta · cpq · Nov 2, 2023 · Nov 2, 2023 · scaprile · Nov 2, 2023
diff --git a/examples/device-dashboard/net.c b/examples/device-dashboard/net.c
@@ -255,6 +255,14 @@ static void handle_device_reset(struct mg_connection *c) {
   mg_timer_add(c->mgr, 500, 0, (void (*)(void *)) mg_device_reset, NULL);
 }
 
+static void handle_device_eraselast(struct mg_connection *c) {
+  size_t ss = mg_flash_sector_size(), size = mg_flash_size();
+  char *base = (char *) mg_flash_start(), *last = base + size - ss;
+  if (mg_flash_bank() == 2) last -= size / 2;
+  mg_flash_erase(last);
+  mg_http_reply(c, 200, s_json_header, "true\n");
+}
+
 // HTTP request handler function
 static void fn(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
   if (ev == MG_EV_ACCEPT) {
@@ -294,6 +302,8 @@ static void fn(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
       handle_firmware_status(c);
     } else if (mg_http_match_uri(hm, "/api/device/reset")) {
       handle_device_reset(c);
+    } else if (mg_http_match_uri(hm, "/api/device/eraselast")) {
+      handle_device_eraselast(c);
     } else {
       struct mg_http_serve_opts opts;
       memset(&opts, 0, sizeof(opts));

diff --git a/examples/device-dashboard/packed_fs.c b/examples/device-dashboard/packed_fs.c
diff --git a/examples/device-dashboard/web_root/components.js b/examples/device-dashboard/web_root/components.js
@@ -42,6 +42,7 @@ export const Icons = {
   chip: props => html`<svg class=${props.class} xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor"> <path stroke-linecap="round" stroke-linejoin="round" d="M8.25 3v1.5M4.5 8.25H3m18 0h-1.5M4.5 12H3m18 0h-1.5m-15 3.75H3m18 0h-1.5M8.25 19.5V21M12 3v1.5m0 15V21m3.75-18v1.5m0 15V21m-9-1.5h10.5a2.25 2.25 0 002.25-2.25V6.75a2.25 2.25 0 00-2.25-2.25H6.75A2.25 2.25 0 004.5 6.75v10.5a2.25 2.25 0 002.25 2.25zm.75-12h9v9h-9v-9z" /> </svg>`,
   camera: props => html`<svg class=${props.class} xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor"> <path stroke-linecap="round" stroke-linejoin="round" d="M6.827 6.175A2.31 2.31 0 015.186 7.23c-.38.054-.757.112-1.134.175C2.999 7.58 2.25 8.507 2.25 9.574V18a2.25 2.25 0 002.25 2.25h15A2.25 2.25 0 0021.75 18V9.574c0-1.067-.75-1.994-1.802-2.169a47.865 47.865 0 00-1.134-.175 2.31 2.31 0 01-1.64-1.055l-.822-1.316a2.192 2.192 0 00-1.736-1.039 48.774 48.774 0 00-5.232 0 2.192 2.192 0 00-1.736 1.039l-.821 1.316z" /> <path stroke-linecap="round" stroke-linejoin="round" d="M16.5 12.75a4.5 4.5 0 11-9 0 4.5 4.5 0 019 0zM18.75 10.5h.008v.008h-.008V10.5z" /> </svg>`,
   arrows: props => html`<svg class=${props.class} xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor"> <path stroke-linecap="round" stroke-linejoin="round" d="M7.5 21L3 16.5m0 0L7.5 12M3 16.5h13.5m0-13.5L21 7.5m0 0L16.5 12M21 7.5H7.5" /> </svg>`,
+  doc: props => html`<svg class=${props.class} xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor"> <path stroke-linecap="round" stroke-linejoin="round" d="M19.5 14.25v-2.625a3.375 3.375 0 00-3.375-3.375h-1.5A1.125 1.125 0 0113.5 7.125v-1.5a3.375 3.375 0 00-3.375-3.375H8.25m2.25 0H5.625c-.621 0-1.125.504-1.125 1.125v17.25c0 .621.504 1.125 1.125 1.125h12.75c.621 0 1.125-.504 1.125-1.125V11.25a9 9 0 00-9-9z" /></svg>`,
 };
 
 export const tipColors = {
@@ -157,7 +158,7 @@ export function Colored({icon, text, colors}) {
 export function Stat({title, text, tipText, tipIcon, tipColors, colors}) {
   return html`
 <div class="flex flex-col bg-white border shadow-sm rounded-xl dark:bg-slate-900 dark:border-gray-800">
-  <div class="overflow-auto rounded-lg bg-white px-4 py-2 shadow">
+  <div class="overflow-auto rounded-lg bg-white px-4 py-2 ">
     <div class="flex items-center gap-x-2">
       <p class="text-sm truncate text-gray-500 font-medium"> ${title} </p>
     <//>
@@ -173,27 +174,34 @@ export function Stat({title, text, tipText, tipIcon, tipColors, colors}) {
 <//>`;
 };
 
-export function TextValue({value, setfn, disabled, placeholder, type, addonRight, addonLeft, attr, min, max, step}) {
+export function TextValue({value, setfn, disabled, placeholder, type, addonRight, addonLeft, attr, min, max, step, mult}) {
   const [bg, setBg] = useState('bg-white');
-  useEffect(() => { checkval(value); }, []);
-  const checkval = function(v) {
+  useEffect(() => { if (type == 'number') checkval(+min, +max, +value); }, []);
+  step ||= '1', mult ||= 1;
+  const checkval = function(min, max, v) {
     setBg('bg-white');
     if (min && v < min) setBg('bg-red-100 border-red-200');
     if (max && v > max) setBg('bg-red-100 border-red-200');
   };
-  const oninput = ev => {
+  const m = step.match(/^.+\.(.+)/);
+  const digits = m ? m[1].length : 0;
+  const onchange = ev => {
     let v = ev.target.value;
-    if (type == 'number') v = parseInt(v);
+    if (type == 'number') {
+      checkval(+min, +max, +v);
+      v = +(parseFloat(v) / mult).toFixed(digits);
+    }
     setfn(v);
-    checkval(v);
   };
+  if (type == 'number') value = +(value * mult).toFixed(digits);
   return html`
 <div class="flex w-full items-center rounded border shadow-sm ${bg}">
-  ${ addonLeft && html`<span class="inline-flex font-normal truncate py-1 border-r bg-slate-100 items-center border-gray-300 px-2 text-gray-500 text-xs">${addonLeft}<//>` }
-  <input type=${type || 'text'} disabled=${disabled} 
-    oninput=${oninput} ...${attr}
-    class="${bg} font-normal text-sm rounded w-full flex-1 py-0.5 px-2 text-gray-700 placeholder:text-gray-400 focus:outline-none disabled:cursor-not-allowed disabled:bg-gray-100 disabled:text-gray-500" placeholder=${placeholder} value=${value} />
-  ${ addonRight && html`<span class="inline-flex font-normal truncate py-1 border-l bg-slate-100 items-center border-gray-300 px-2 text-gray-500 text-xs overflow-scroll" style="min-width: 50%;">${addonRight}<//>` }
+  ${addonLeft && html`<span class="inline-flex font-normal truncate py-1 border-r bg-slate-100 items-center border-gray-300 px-2 text-gray-500 text-xs">${addonLeft}<//>` }
+  <input type=${type || 'text'} disabled=${disabled} value=${value}
+    step=${step} min=${min} max=${max} 
+    onchange=${onchange} ...${attr}
+    class="${bg} font-normal text-sm rounded w-full flex-1 py-0.5 px-2 text-gray-700 placeholder:text-gray-400 focus:outline-none disabled:cursor-not-allowed disabled:bg-gray-100 disabled:text-gray-500" placeholder=${placeholder} />
+  ${addonRight && html`<span class="inline-flex font-normal truncate py-1 border-l bg-slate-100 items-center border-gray-300 px-2 text-gray-500 text-xs overflow-scroll" style="min-width: 50%;">${addonRight}<//>` }
 <//>`;
 };
 
@@ -344,6 +352,6 @@ export function UploadFileButton(props) {
 <div class="inline-flex flex-col ${props.class}">
   <input class="hidden" type="file" ref=${input} onchange=${onchange} accept=${props.accept} />
   <${Button} title=${props.title} icon=${Icons.download} onclick=${onclick} ref=${btn} colors=${props.colors} />
-  <div class="py-2 text-sm text-slate-400 ${status || 'hidden'}">${status}<//>
+  <div class="pt-2 text-sm text-slate-400 ${status || 'hidden'}">${status}<//>
 <//>`;
 };
diff --git a/examples/device-dashboard/web_root/main.css b/examples/device-dashboard/web_root/main.css
diff --git a/examples/device-dashboard/web_root/main.js b/examples/device-dashboard/web_root/main.js
@@ -216,36 +216,49 @@ function FirmwareUpdate({}) {
     .then(r => new Promise(r => setTimeout(ev => { refresh(); r(); }, 3000)));
   const onrollback = ev => fetch('api/firmware/rollback')
     .then(onreboot);
+  const onerase = ev => fetch('api/device/eraselast').then(refresh);
   const onupload = function(ok, name, size) {
     if (!ok) return false;
     return new Promise(r => setTimeout(ev => { refresh(); r(); }, 3000));
   };
-  const clean = info[0].valid && info[0].golden == 0;
   return html`
-<div class="m-4 gap-4 grid grid-cols-1 lg:grid-cols-2">
+<div class="m-4 gap-4 grid grid-cols-1 lg:grid-cols-3">
   <${FirmwareStatus} title="Current firmware image" info=${info[0]}>
     <div class="flex flex-wrap gap-2">
-      <${Button} title="Commit this firmware"
-        onclick=${oncommit} icon=${Icons.thumbUp} disabled=${clean} />
-      <${Button} title="Reboot device" onclick=${onreboot} icon=${Icons.refresh} clsx="absolute top-4 right-4" />
-      <${UploadFileButton}
-        title="Upload new firmware: choose .bin file:" onupload=${onupload}
-      url="api/firmware/upload" accept=".bin,.uf2" />
+      <${Button} title="Commit this firmware" onclick=${oncommit}
+        icon=${Icons.thumbUp} disabled=${info[0].status == 3} cls="w-full" />
     <//>
   <//>
   <${FirmwareStatus} title="Previous firmware image" info=${info[1]}>
     <${Button} title="Rollback to this firmware" onclick=${onrollback}
-      icon=${Icons.backward} disabled=${info[1].valid == false} />
+      icon=${Icons.backward} disabled=${info[1].status == 0} cls="w-full" />
   <//>
+  <div class="bg-white xm-4 divide-y border rounded flex flex-col">
+    <div class="font-light uppercase flex items-center text-gray-600 px-4 py-2">
+      Device control
+    <//>
+    <div class="px-4 py-3 flex flex-col gap-2 grow">
+      <${UploadFileButton}
+        title="Upload new firmware .bin file" onupload=${onupload}
+      url="api/firmware/upload" accept=".bin,.uf2" />
+      <div class="grow"><//>
+      <${Button} title="Reboot device" onclick=${onreboot} icon=${Icons.refresh} cls="w-full" />
+      <${Button} title="Erase last sector" onclick=${onerase} icon=${Icons.doc} cls="w-full hidden" />
+    <//>
+  <//>
+<//>
+
 
+<div class="m-4 gap-4 grid grid-cols-1 lg:grid-cols-2">
   <div class="bg-white border shadow-lg">
     <${DeveloperNote}>
       <div class="my-2">
-        When a new firmware gets flashed, its status is marked as, "first_boot".
-        That is an unreliable (uncommitted) firmware. A user may choose
-        to revert back to the previous committed firmware on the subsequent
-        boots. Clicking on the "commit" button calls "mg_ota_commit()" function
-        which commits the firmware.
+        Firmware status and other information is stored in the last sector
+        of flash
+      <//>
+      <div class="my-2">
+        Firmware status can be FIRST_BOOT, UNCOMMITTED or COMMITTED. If no
+        information is available, it is UNAVAILABLE.
       <//>
       <div class="my-2">  
         This GUI loads a firmware file and sends it chunk by chunk to the

diff --git a/examples/stm32/nucleo-h563zi-make-baremetal-builtin/main.c b/examples/stm32/nucleo-h563zi-make-baremetal-builtin/main.c
@@ -42,23 +42,21 @@ int main(void) {
   mg_mgr_init(&mgr);        // Mongoose event manager
   mg_log_set(MG_LL_DEBUG);  // Set log level
 
-#if MG_OTA == MG_OTA_FLASH
-  // If we don't have any OTA info saved, e.g. we're pre-flashed, then
-  // call mg_ota_commit() to mark this firmware as reliable
-  if (mg_ota_status(MG_FIRMWARE_CURRENT) == MG_OTA_UNAVAILABLE) mg_ota_commit();
+  mg_ota_boot();  // Call bootloader: continue to load, or boot another FW
 
-  // Demonstrate the use of mg_flash_{load/save} functions for keeping device
+#if MG_OTA == MG_OTA_FLASH
+  // Demonstrate the use of mg_flash_{load/save} functions for storing device
   // configuration data on flash. Increment boot count on every boot.
   struct deviceconfig {
     uint32_t boot_count;
-    int some_other_data;
+    char some_other_data[40];
   };
   uint32_t key = 0x12345678;    // A unique key, one per data type
   struct deviceconfig dc = {};  // Initialise to some default values
-  mg_flash_load(NULL, key, &dc, sizeof(dc));  // Load from flash
-  dc.boot_count++;                            // Increment boot count
-  mg_flash_save(NULL, key, &dc, sizeof(dc));  // And save back
-  MG_INFO(("Boot count: %u", dc.boot_count));
+  mg_flash_load(NULL, key, &dc, sizeof(dc));   // Load from flash
+  dc.boot_count++;                             // Increment boot count
+  mg_flash_save(NULL, key, &dc, sizeof(dc));   // And save back
+  MG_INFO(("Boot count: %u", dc.boot_count));  // Print boot count
 #endif
 
   // Initialise Mongoose network stack

diff --git a/examples/stm32/nucleo-h723zg-make-baremetal-builtin/Makefile b/examples/stm32/nucleo-h723zg-make-baremetal-builtin/Makefile
@@ -24,6 +24,7 @@ firmware.bin: firmware.elf
 
 firmware.elf: cmsis_core cmsis_h7 $(SOURCES) hal.h link.ld Makefile
 	arm-none-eabi-gcc $(SOURCES) $(CFLAGS) $(LDFLAGS) -o $@
+	arm-none-eabi-size $@
 
 flash: firmware.bin
 	st-flash --reset write $< 0x8000000

diff --git a/examples/stm32/nucleo-h723zg-make-baremetal-builtin/hal.h b/examples/stm32/nucleo-h723zg-make-baremetal-builtin/hal.h
@@ -8,6 +8,16 @@
 
 #pragma once
 
+#define BTN PIN('C', 13)   // User push button
+#define LED1 PIN('B', 0)   // On-board LED pin (green)
+#define LED2 PIN('E', 1)   // On-board LED pin (yellow)
+#define LED3 PIN('B', 14)  // On-board LED pin (red)
+#define LED LED2           // Use yellow LED for blinking
+
+#ifndef UART_DEBUG
+#define UART_DEBUG USART3
+#endif
+
 #include <stm32h723xx.h>
 
 #include <stdbool.h>
@@ -21,12 +31,6 @@
 #define PINNO(pin) (pin & 255)
 #define PINBANK(pin) (pin >> 8)
 
-#define LED1 PIN('B', 0)   // On-board LED pin (green)
-#define LED2 PIN('E', 1)   // On-board LED pin (yellow)
-#define LED3 PIN('B', 14)  // On-board LED pin (red)
-
-#define LED LED2  // Use yellow LED for blinking
-
 // System clock (2.1, Figure 1; 8.5, Figure 45; 8.5.5, Figure 47; 8.5.6, Figure
 // 49; 8.5.8 Table 56; datasheet) CPU_FREQUENCY <= 550 MHz; hclk = CPU_FREQUENCY
 // / HPRE ; hclk <= 275 MHz; APB clocks <= 137.5 MHz. D1 domain bus matrix (and
@@ -96,10 +100,6 @@ static inline void gpio_output(uint16_t pin) {
             GPIO_PULL_NONE, 0);
 }
 
-#ifndef UART_DEBUG
-#define UART_DEBUG USART3
-#endif
-
 // D2 Kernel clock (8.7.21) USART1 defaults to pclk2 (APB2), while USART2,3
 // default to pclk1 (APB1). Even if using other kernel clocks, the APBx clocks
 // must be enabled for CPU access, as the kernel clock drives the BRR, not the

diff --git a/examples/stm32/nucleo-h723zg-make-baremetal-builtin/link.ld b/examples/stm32/nucleo-h723zg-make-baremetal-builtin/link.ld
@@ -16,19 +16,15 @@ SECTIONS {
   .rodata   : { *(.rodata*) }           > flash
 
   .data : {
-    _sdata = .;   /* for init_ram() */
+    _sdata = .;
     *(.first_data)
     *(.data SORT(.data.*))
-    _edata = .;  /* for init_ram() */
+    *(.iram .iram* .iram.*)
+    _edata = .;
   } > sram AT > flash
   _sidata = LOADADDR(.data);
 
-  .bss : {
-    _sbss = .;              /* for init_ram() */
-    *(.bss SORT(.bss.*) COMMON)
-    _ebss = .;              /* for init_ram() */
-  } > sram
-
+  .bss : { _sbss = .; *(.bss SORT(.bss.*) COMMON) _ebss = .; } > sram
   . = ALIGN(8);
-  _end = .;     /* for cmsis_gcc.h and init_ram() */
+  _end = .;
 }
diff --git a/examples/stm32/nucleo-h723zg-make-baremetal-builtin/main.c b/examples/stm32/nucleo-h723zg-make-baremetal-builtin/main.c
@@ -43,9 +43,22 @@ int main(void) {
   mg_mgr_init(&mgr);        // Mongoose event manager
   mg_log_set(MG_LL_DEBUG);  // Set log level
 
-  // If we don't have any OTA info saved, e.g. we're pre-flashed, then
-  // call mg_ota_commit() to mark this firmware as reliable
-  if (mg_ota_status(MG_FIRMWARE_CURRENT) == MG_OTA_UNAVAILABLE) mg_ota_commit();
+  mg_ota_boot();  // Call bootloader: continue to load, or boot another FW
+
+#if MG_OTA == MG_OTA_FLASH
+  // Demonstrate the use of mg_flash_{load/save} functions for keeping device
+  // configuration data on flash. Increment boot count on every boot.
+  struct deviceconfig {
+    uint32_t boot_count;
+    char some_other_data[40];
+  };
+  uint32_t key = 0x12345678;    // A unique key, one per data type
+  struct deviceconfig dc = {};  // Initialise to some default values
+  mg_flash_load(NULL, key, &dc, sizeof(dc));  // Load from flash
+  dc.boot_count++;                            // Increment boot count
+  mg_flash_save(NULL, key, &dc, sizeof(dc));  // And save back
+  MG_INFO(("Boot count: %u", dc.boot_count));
+#endif
 
   // Initialise Mongoose network stack
   struct mg_tcpip_driver_stm32h_data driver_data = {.mdc_cr = 4};

diff --git a/examples/stm32/nucleo-h723zg-make-baremetal-builtin/mongoose_custom.h b/examples/stm32/nucleo-h723zg-make-baremetal-builtin/mongoose_custom.h
@@ -1,6 +1,8 @@
 #pragma once
 
 #define MG_ARCH MG_ARCH_NEWLIB
+#define MG_OTA MG_OTA_FLASH
+#define MG_DEVICE MG_DEVICE_STM32H7
 
 #define MG_ENABLE_TCPIP 1
 #define MG_ENABLE_CUSTOM_MILLIS 1

diff --git a/examples/stm32/nucleo-h743zi-make-baremetal-builtin/main.c b/examples/stm32/nucleo-h743zi-make-baremetal-builtin/main.c
@@ -45,9 +45,22 @@ int main(void) {
   mg_mgr_init(&mgr);        // Mongoose event manager
   mg_log_set(MG_LL_DEBUG);  // Set log level
 
-  // If we don't have any OTA info saved, e.g. we're pre-flashed, then
-  // call mg_ota_commit() to mark this firmware as reliable
-  if (mg_ota_status(MG_FIRMWARE_CURRENT) == MG_OTA_UNAVAILABLE) mg_ota_commit();
+  mg_ota_boot();  // Call bootloader: continue to load, or boot another FW
+
+#if MG_OTA == MG_OTA_FLASH
+  // Demonstrate the use of mg_flash_{load/save} functions for keeping device
+  // configuration data on flash. Increment boot count on every boot.
+  struct deviceconfig {
+    uint32_t boot_count;
+    char some_other_data[40];
+  };
+  uint32_t key = 0x12345678;    // A unique key, one per data type
+  struct deviceconfig dc = {};  // Initialise to some default values
+  mg_flash_load(NULL, key, &dc, sizeof(dc));  // Load from flash
+  dc.boot_count++;                            // Increment boot count
+  mg_flash_save(NULL, key, &dc, sizeof(dc));  // And save back
+  MG_INFO(("Boot count: %u", dc.boot_count));
+#endif
 
   // Initialise Mongoose network stack
   struct mg_tcpip_driver_stm32h_data driver_data = {.mdc_cr = 4};