diff --git a/firmware/.gitignore b/firmware/.gitignore
index ea8c4bf..2f7896d 100644
--- a/firmware/.gitignore
+++ b/firmware/.gitignore
@@ -1 +1 @@
-/target
+target/
diff --git a/firmware/Cargo.lock b/firmware/Cargo.lock
index cbed053..af6d617 100644
--- a/firmware/Cargo.lock
+++ b/firmware/Cargo.lock
@@ -4,9 +4,9 @@ version = 4
[[package]]
name = "ahash"
-version = "0.8.11"
+version = "0.8.12"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e89da841a80418a9b391ebaea17f5c112ffaaa96f621d2c285b5174da76b9011"
+checksum = "5a15f179cd60c4584b8a8c596927aadc462e27f2ca70c04e0071964a73ba7a75"
dependencies = [
"cfg-if",
"once_cell",
@@ -16,9 +16,9 @@ dependencies = [
[[package]]
name = "aligned"
-version = "0.4.2"
+version = "0.4.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "377e4c0ba83e4431b10df45c1d4666f178ea9c552cac93e60c3a88bf32785923"
+checksum = "ee4508988c62edf04abd8d92897fca0c2995d907ce1dfeaf369dac3716a40685"
dependencies = [
"as-slice",
]
@@ -33,10 +33,19 @@ dependencies = [
]
[[package]]
-name = "autocfg"
-version = "1.4.0"
+name = "atomic-polyfill"
+version = "1.0.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ace50bade8e6234aa140d9a2f552bbee1db4d353f69b8217bc503490fc1a9f26"
+checksum = "8cf2bce30dfe09ef0bfaef228b9d414faaf7e563035494d7fe092dba54b300f4"
+dependencies = [
+ "critical-section",
+]
+
+[[package]]
+name = "autocfg"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c08606f8c3cbf4ce6ec8e28fb0014a2c086708fe954eaa885384a6165172e7e8"
[[package]]
name = "az"
@@ -50,7 +59,7 @@ version = "0.2.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5deb64efa5bd81e31fcd1938615a6d98c82eafcbcd787162b6f63b91d6bac5b3"
dependencies = [
- "rustc_version",
+ "rustc_version 0.2.3",
]
[[package]]
@@ -61,9 +70,9 @@ checksum = "72b3254f16251a8381aa12e40e3c4d2f0199f8c6508fbecb9d91f575e0fbb8c6"
[[package]]
name = "bit_field"
-version = "0.10.2"
+version = "0.10.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc827186963e592360843fb5ba4b973e145841266c1357f7180c43526f2e5b61"
+checksum = "1e4b40c7323adcfc0a41c4b88143ed58346ff65a288fc144329c5c45e05d70c6"
[[package]]
name = "bitfield"
@@ -85,9 +94,9 @@ checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
[[package]]
name = "bitflags"
-version = "2.9.0"
+version = "2.10.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5c8214115b7bf84099f1309324e63141d4c5d7cc26862f97a0a857dbefe165bd"
+checksum = "812e12b5285cc515a9c72a5c1d3b6d46a19dac5acfef5265968c166106e31dd3"
[[package]]
name = "block-device-driver"
@@ -106,9 +115,18 @@ checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
[[package]]
name = "cfg-if"
-version = "1.0.0"
+version = "1.0.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+checksum = "9330f8b2ff13f34540b44e946ef35111825727b38d33286ef986142615121801"
+
+[[package]]
+name = "cobs"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0fa961b519f0b462e3a3b4a34b64d119eeaca1d59af726fe450bbba07a9fc0a1"
+dependencies = [
+ "thiserror",
+]
[[package]]
name = "cortex-m"
@@ -140,7 +158,7 @@ checksum = "e37549a379a9e0e6e576fd208ee60394ccb8be963889eebba3ffe0980364f472"
dependencies = [
"proc-macro2",
"quote",
- "syn 2.0.98",
+ "syn 2.0.112",
]
[[package]]
@@ -151,9 +169,9 @@ checksum = "790eea4361631c5e7d22598ecd5723ff611904e3344ce8720784c93e3d83d40b"
[[package]]
name = "darling"
-version = "0.20.10"
+version = "0.20.11"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6f63b86c8a8826a49b8c21f08a2d07338eec8d900540f8630dc76284be802989"
+checksum = "fc7f46116c46ff9ab3eb1597a45688b6715c6e628b5c133e288e709a29bcb4ee"
dependencies = [
"darling_core",
"darling_macro",
@@ -161,27 +179,27 @@ dependencies = [
[[package]]
name = "darling_core"
-version = "0.20.10"
+version = "0.20.11"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "95133861a8032aaea082871032f5815eb9e98cef03fa916ab4500513994df9e5"
+checksum = "0d00b9596d185e565c2207a0b01f8bd1a135483d02d9b7b0a54b11da8d53412e"
dependencies = [
"fnv",
"ident_case",
"proc-macro2",
"quote",
"strsim",
- "syn 2.0.98",
+ "syn 2.0.112",
]
[[package]]
name = "darling_macro"
-version = "0.20.10"
+version = "0.20.11"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d336a2a514f6ccccaa3e09b02d41d35330c07ddf03a62165fcec10bb561c7806"
+checksum = "fc34b93ccb385b40dc71c6fceac4b2ad23662c7eeb248cf10d529b7e055b6ead"
dependencies = [
"darling_core",
"quote",
- "syn 2.0.98",
+ "syn 2.0.112",
]
[[package]]
@@ -213,7 +231,7 @@ dependencies = [
"proc-macro-error2",
"proc-macro2",
"quote",
- "syn 2.0.98",
+ "syn 2.0.112",
]
[[package]]
@@ -227,9 +245,9 @@ dependencies = [
[[package]]
name = "defmt-rtt"
-version = "1.0.0"
+version = "1.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b2cac3b8a5644a9e02b75085ebad3b6deafdbdbdec04bb25086523828aa4dfd1"
+checksum = "93d5a25c99d89c40f5676bec8cefe0614f17f0f40e916f98e345dae941807f9e"
dependencies = [
"critical-section",
"defmt 1.0.1",
@@ -237,21 +255,22 @@ dependencies = [
[[package]]
name = "document-features"
-version = "0.2.11"
+version = "0.2.12"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "95249b50c6c185bee49034bcb378a49dc2b5dff0be90ff6616d31d64febab05d"
+checksum = "d4b8a88685455ed29a21542a33abd9cb6510b6b129abadabdcef0f4c55bc8f61"
dependencies = [
"litrs",
]
[[package]]
name = "embassy-embedded-hal"
-version = "0.3.0"
+version = "0.5.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "41fea5ef5bed4d3468dfd44f5c9fa4cda8f54c86d4fb4ae683eacf9d39e2ea12"
+checksum = "554e3e840696f54b4c9afcf28a0f24da431c927f4151040020416e7393d6d0d8"
dependencies = [
- "defmt 0.3.100",
+ "defmt 1.0.1",
"embassy-futures",
+ "embassy-hal-internal 0.3.0",
"embassy-sync",
"embassy-time",
"embedded-hal 0.2.7",
@@ -264,47 +283,63 @@ dependencies = [
[[package]]
name = "embassy-executor"
-version = "0.7.0"
+version = "0.9.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "90327bcc66333a507f89ecc4e2d911b265c45f5c9bc241f98eee076752d35ac6"
+checksum = "06070468370195e0e86f241c8e5004356d696590a678d47d6676795b2e439c6b"
dependencies = [
"cortex-m",
"critical-section",
- "defmt 0.3.100",
+ "defmt 1.0.1",
"document-features",
"embassy-executor-macros",
+ "embassy-executor-timer-queue",
]
[[package]]
name = "embassy-executor-macros"
-version = "0.6.2"
+version = "0.7.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3577b1e9446f61381179a330fc5324b01d511624c55f25e3c66c9e3c626dbecf"
+checksum = "dfdddc3a04226828316bf31393b6903ee162238576b1584ee2669af215d55472"
dependencies = [
"darling",
"proc-macro2",
"quote",
- "syn 2.0.98",
+ "syn 2.0.112",
]
[[package]]
-name = "embassy-futures"
-version = "0.1.1"
+name = "embassy-executor-timer-queue"
+version = "0.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1f878075b9794c1e4ac788c95b728f26aa6366d32eeb10c7051389f898f7d067"
+checksum = "2fc328bf943af66b80b98755db9106bf7e7471b0cf47dc8559cd9a6be504cc9c"
+
+[[package]]
+name = "embassy-futures"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc2d050bdc5c21e0862a89256ed8029ae6c290a93aecefc73084b3002cdebb01"
dependencies = [
- "defmt 0.3.100",
+ "defmt 1.0.1",
]
[[package]]
name = "embassy-hal-internal"
-version = "0.2.0"
+version = "0.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0ef3bac31ec146321248a169e9c7b5799f1e0b3829c7a9b324cb4600a7438f59"
+checksum = "95285007a91b619dc9f26ea8f55452aa6c60f7115a4edc05085cd2bd3127cd7a"
+dependencies = [
+ "num-traits",
+]
+
+[[package]]
+name = "embassy-hal-internal"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f10ce10a4dfdf6402d8e9bd63128986b96a736b1a0a6680547ed2ac55d55dba"
dependencies = [
"cortex-m",
"critical-section",
- "defmt 0.3.100",
+ "defmt 1.0.1",
"num-traits",
]
@@ -319,9 +354,9 @@ dependencies = [
[[package]]
name = "embassy-net-driver-channel"
-version = "0.3.0"
+version = "0.3.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4818c32afec43e3cae234f324bad9a976c9aa7501022d26ff60a4017a1a006b7"
+checksum = "b7b2739fbcf6cd206ae08779c7d709087b16577d255f2ea4a45bc4bbbf305b3f"
dependencies = [
"embassy-futures",
"embassy-net-driver",
@@ -330,23 +365,23 @@ dependencies = [
[[package]]
name = "embassy-stm32"
-version = "0.2.0"
+version = "0.5.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e1e0bb733acdddbc7097765a47ce80bde2385647cf1d8427331931e06cff9a87"
+checksum = "088d65743a48f2cc9b3ae274ed85d6e8b68bd3ee92eb6b87b15dca2f81f7a101"
dependencies = [
"aligned",
"bit_field",
- "bitflags 2.9.0",
+ "bitflags 2.10.0",
"block-device-driver",
"cfg-if",
"cortex-m",
"cortex-m-rt",
"critical-section",
- "defmt 0.3.100",
+ "defmt 1.0.1",
"document-features",
"embassy-embedded-hal",
"embassy-futures",
- "embassy-hal-internal",
+ "embassy-hal-internal 0.4.0",
"embassy-net-driver",
"embassy-sync",
"embassy-time",
@@ -359,107 +394,112 @@ dependencies = [
"embedded-hal 1.0.0",
"embedded-hal-async",
"embedded-hal-nb",
- "embedded-io",
- "embedded-io-async",
+ "embedded-io 0.7.1",
+ "embedded-io-async 0.7.0",
"embedded-storage",
"embedded-storage-async",
"futures-util",
+ "heapless 0.9.2",
"nb 1.1.0",
"proc-macro2",
"quote",
- "rand_core",
+ "rand_core 0.6.4",
+ "rand_core 0.9.3",
"sdio-host",
"static_assertions",
"stm32-fmc",
"stm32-metapac",
+ "trait-set",
"vcell",
"volatile-register",
]
[[package]]
name = "embassy-sync"
-version = "0.6.2"
+version = "0.7.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8d2c8cdff05a7a51ba0087489ea44b0b1d97a296ca6b1d6d1a33ea7423d34049"
+checksum = "73974a3edbd0bd286759b3d483540f0ebef705919a5f56f4fc7709066f71689b"
dependencies = [
"cfg-if",
"critical-section",
- "defmt 0.3.100",
- "embedded-io-async",
+ "defmt 1.0.1",
+ "embedded-io-async 0.6.1",
+ "futures-core",
"futures-sink",
- "futures-util",
- "heapless",
+ "heapless 0.8.0",
]
[[package]]
name = "embassy-time"
-version = "0.4.0"
+version = "0.5.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f820157f198ada183ad62e0a66f554c610cdcd1a9f27d4b316358103ced7a1f8"
+checksum = "f4fa65b9284d974dad7a23bb72835c4ec85c0b540d86af7fc4098c88cff51d65"
dependencies = [
"cfg-if",
"critical-section",
- "defmt 0.3.100",
+ "defmt 1.0.1",
"document-features",
"embassy-time-driver",
"embedded-hal 0.2.7",
"embedded-hal 1.0.0",
"embedded-hal-async",
- "futures-util",
+ "futures-core",
]
[[package]]
name = "embassy-time-driver"
-version = "0.2.0"
+version = "0.2.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8d45f5d833b6d98bd2aab0c2de70b18bfaa10faf661a1578fd8e5dfb15eb7eba"
+checksum = "a0a244c7dc22c8d0289379c8d8830cae06bb93d8f990194d0de5efb3b5ae7ba6"
dependencies = [
"document-features",
]
[[package]]
name = "embassy-time-queue-utils"
-version = "0.1.0"
+version = "0.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc55c748d16908a65b166d09ce976575fb8852cf60ccd06174092b41064d8f83"
+checksum = "80e2ee86063bd028a420a5fb5898c18c87a8898026da1d4c852af2c443d0a454"
dependencies = [
- "embassy-executor",
- "heapless",
+ "embassy-executor-timer-queue",
+ "heapless 0.8.0",
]
[[package]]
name = "embassy-usb"
-version = "0.4.0"
+version = "0.5.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6e651b9b7b47b514e6e6d1940a6e2e300891a2c33641917130643602a0cb6386"
+checksum = "dc4462e48b19a4f401a11901bdd981aab80c6a826608016a0bdc73cbbab31954"
dependencies = [
- "defmt 0.3.100",
+ "defmt 1.0.1",
"embassy-futures",
"embassy-net-driver-channel",
"embassy-sync",
"embassy-usb-driver",
- "heapless",
+ "embedded-io-async 0.6.1",
+ "heapless 0.8.0",
"ssmarshal",
"usbd-hid",
]
[[package]]
name = "embassy-usb-driver"
-version = "0.1.0"
+version = "0.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4fc247028eae04174b6635104a35b1ed336aabef4654f5e87a8f32327d231970"
+checksum = "17119855ccc2d1f7470a39756b12068454ae27a3eabb037d940b5c03d9c77b7a"
dependencies = [
- "defmt 0.3.100",
+ "defmt 1.0.1",
+ "embedded-io-async 0.6.1",
]
[[package]]
name = "embassy-usb-synopsys-otg"
-version = "0.2.0"
+version = "0.3.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "08e753b23799329780c7ac434264026d0422044d6649ed70a73441b14a6436d7"
+checksum = "288751f8eaa44a5cf2613f13cee0ca8e06e6638cb96e897e6834702c79084b23"
dependencies = [
"critical-section",
- "defmt 0.3.100",
+ "defmt 1.0.1",
"embassy-sync",
"embassy-usb-driver",
]
@@ -481,6 +521,7 @@ checksum = "0649998afacf6d575d126d83e68b78c0ab0e00ca2ac7e9b3db11b4cbe8274ef0"
dependencies = [
"az",
"byteorder",
+ "defmt 0.3.100",
"embedded-graphics-core",
"float-cmp",
"micromath",
@@ -494,6 +535,7 @@ checksum = "ba9ecd261f991856250d2207f6d8376946cd9f412a2165d3b75bc87a0bc7a044"
dependencies = [
"az",
"byteorder",
+ "defmt 0.3.100",
]
[[package]]
@@ -547,8 +589,14 @@ name = "embedded-io"
version = "0.6.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "edd0f118536f44f5ccd48bcb8b111bdc3de888b58c74639dfb034a357d0f206d"
+
+[[package]]
+name = "embedded-io"
+version = "0.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9eb1aa714776b75c7e67e1da744b81a129b3ff919c8712b5e1b32252c1f07cc7"
dependencies = [
- "defmt 0.3.100",
+ "defmt 1.0.1",
]
[[package]]
@@ -557,8 +605,17 @@ version = "0.6.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3ff09972d4073aa8c299395be75161d582e7629cd663171d62af73c8d50dba3f"
dependencies = [
- "defmt 0.3.100",
- "embedded-io",
+ "embedded-io 0.6.1",
+]
+
+[[package]]
+name = "embedded-io-async"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2564b9f813c544241430e147d8bc454815ef9ac998878d30cc3055449f7fd4c0"
+dependencies = [
+ "defmt 1.0.1",
+ "embedded-io 0.7.1",
]
[[package]]
@@ -638,6 +695,15 @@ dependencies = [
"pin-utils",
]
+[[package]]
+name = "hash32"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b0c35f58762feb77d74ebe43bdbc3210f09be9fe6742234d573bacc26ed92b67"
+dependencies = [
+ "byteorder",
+]
+
[[package]]
name = "hash32"
version = "0.3.1"
@@ -656,13 +722,37 @@ dependencies = [
"ahash",
]
+[[package]]
+name = "heapless"
+version = "0.7.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cdc6457c0eb62c71aac4bc17216026d8410337c4126773b9c5daba343f17964f"
+dependencies = [
+ "atomic-polyfill",
+ "hash32 0.2.1",
+ "rustc_version 0.4.1",
+ "serde",
+ "spin",
+ "stable_deref_trait",
+]
+
[[package]]
name = "heapless"
version = "0.8.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0bfb9eb618601c89945a70e254898da93b13be0388091d42117462b265bb3fad"
dependencies = [
- "hash32",
+ "hash32 0.3.1",
+ "stable_deref_trait",
+]
+
+[[package]]
+name = "heapless"
+version = "0.9.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2af2455f757db2b292a9b1768c4b70186d443bcb3b316252d6b540aec1cd89ed"
+dependencies = [
+ "hash32 0.3.1",
"stable_deref_trait",
]
@@ -692,20 +782,31 @@ dependencies = [
"embedded-hal-bus",
"epd-waveshare",
"panic-probe",
- "usbd-hid",
+ "postcard",
+ "serde",
+ "static_cell",
]
[[package]]
name = "litrs"
-version = "0.4.1"
+version = "1.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b4ce301924b7887e9d637144fdade93f9dfff9b60981d4ac161db09720d39aa5"
+checksum = "11d3d7f243d5c5a8b9bb5d6dd2b1602c0cb0b9db1621bafc7ed66e35ff9fe092"
+
+[[package]]
+name = "lock_api"
+version = "0.4.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "224399e74b87b5f3557511d98dff8b14089b3dadafcab6bb93eab67d3aace965"
+dependencies = [
+ "scopeguard",
+]
[[package]]
name = "log"
-version = "0.4.26"
+version = "0.4.29"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "30bde2b3dc3671ae49d8e2e9f044c7c005836e7a023ee57cffa25ab82764bb9e"
+checksum = "5e5032e24019045c762d3c0f28f5b6b8bbf38563a65908389bf7978758920897"
[[package]]
name = "micromath"
@@ -739,9 +840,9 @@ dependencies = [
[[package]]
name = "once_cell"
-version = "1.20.3"
+version = "1.21.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "945462a4b81e43c4e3ba96bd7b49d834c6f61198356aa858733bc4acf3cbe62e"
+checksum = "42f5e15c9953c5e4ccceeb2e7382a716482c34515315f7b03532b8b4e8393d2d"
[[package]]
name = "panic-probe"
@@ -767,9 +868,21 @@ checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
[[package]]
name = "portable-atomic"
-version = "1.11.0"
+version = "1.13.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "350e9b48cbc6b0e028b0473b114454c6316e57336ee184ceab6e53f72c178b3e"
+checksum = "f89776e4d69bb58bc6993e99ffa1d11f228b839984854c7daeb5d37f87cbe950"
+
+[[package]]
+name = "postcard"
+version = "1.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6764c3b5dd454e283a30e6dfe78e9b31096d9e32036b5d1eaac7a6119ccb9a24"
+dependencies = [
+ "cobs",
+ "defmt 1.0.1",
+ "heapless 0.7.17",
+ "serde",
+]
[[package]]
name = "proc-macro-error-attr2"
@@ -790,23 +903,23 @@ dependencies = [
"proc-macro-error-attr2",
"proc-macro2",
"quote",
- "syn 2.0.98",
+ "syn 2.0.112",
]
[[package]]
name = "proc-macro2"
-version = "1.0.93"
+version = "1.0.104"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "60946a68e5f9d28b0dc1c21bb8a97ee7d018a8b322fa57838ba31cc878e22d99"
+checksum = "9695f8df41bb4f3d222c95a67532365f569318332d03d5f3f67f37b20e6ebdf0"
dependencies = [
"unicode-ident",
]
[[package]]
name = "quote"
-version = "1.0.38"
+version = "1.0.42"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0e4dccaaaf89514f546c693ddc140f729f958c247918a13380cccc6078391acc"
+checksum = "a338cc41d27e6cc6dce6cefc13a0729dfbb81c262b1f519331575dd80ef3067f"
dependencies = [
"proc-macro2",
]
@@ -817,20 +930,41 @@ version = "0.6.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ec0be4795e2f6a28069bec0b5ff3e2ac9bafc99e6a9a7dc3547996c5c816922c"
+[[package]]
+name = "rand_core"
+version = "0.9.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "99d9a13982dcf210057a8a78572b2217b667c3beacbf3a0d8b454f6f82837d38"
+
[[package]]
name = "rustc_version"
version = "0.2.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
dependencies = [
- "semver",
+ "semver 0.9.0",
]
[[package]]
-name = "sdio-host"
-version = "0.5.0"
+name = "rustc_version"
+version = "0.4.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f93c025f9cfe4c388c328ece47d11a54a823da3b5ad0370b22d95ad47137f85a"
+checksum = "cfcb3a22ef46e85b45de6ee7e79d063319ebb6594faafcf1c225ea92ab6e9b92"
+dependencies = [
+ "semver 1.0.27",
+]
+
+[[package]]
+name = "scopeguard"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
+
+[[package]]
+name = "sdio-host"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b328e2cb950eeccd55b7f55c3a963691455dcd044cfb5354f0c5e68d2c2d6ee2"
[[package]]
name = "semver"
@@ -841,6 +975,12 @@ dependencies = [
"semver-parser",
]
+[[package]]
+name = "semver"
+version = "1.0.27"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d767eb0aabc880b29956c35734170f26ed551a859dbd361d140cdbeca61ab1e2"
+
[[package]]
name = "semver-parser"
version = "0.7.0"
@@ -849,22 +989,41 @@ checksum = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
[[package]]
name = "serde"
-version = "1.0.218"
+version = "1.0.228"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e8dfc9d19bdbf6d17e22319da49161d5d0108e4188e8b680aef6299eed22df60"
+checksum = "9a8e94ea7f378bd32cbbd37198a4a91436180c5bb472411e48b5ec2e2124ae9e"
+dependencies = [
+ "serde_core",
+ "serde_derive",
+]
+
+[[package]]
+name = "serde_core"
+version = "1.0.228"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "41d385c7d4ca58e59fc732af25c3983b67ac852c1a25000afe1175de458b67ad"
dependencies = [
"serde_derive",
]
[[package]]
name = "serde_derive"
-version = "1.0.218"
+version = "1.0.228"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f09503e191f4e797cb8aac08e9a4a4695c5edf6a2e70e376d961ddd5c969f82b"
+checksum = "d540f220d3187173da220f885ab66608367b6574e925011a9353e4badda91d79"
dependencies = [
"proc-macro2",
"quote",
- "syn 2.0.98",
+ "syn 2.0.112",
+]
+
+[[package]]
+name = "spin"
+version = "0.9.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6980e8d7511241f8acf4aebddbb1ff938df5eebe98691418c4468d0b72a96a67"
+dependencies = [
+ "lock_api",
]
[[package]]
@@ -879,9 +1038,9 @@ dependencies = [
[[package]]
name = "stable_deref_trait"
-version = "1.2.0"
+version = "1.2.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a8f112729512f8e442d81f95a8a7ddf2b7c6b8a1a6f509a95864142b30cab2d3"
+checksum = "6ce2be8dc25455e1f91df71bfa12ad37d7af1092ae736f3a6cd0e37bc7810596"
[[package]]
name = "static_assertions"
@@ -890,22 +1049,32 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
[[package]]
-name = "stm32-fmc"
-version = "0.3.2"
+name = "static_cell"
+version = "2.1.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c7f0639399e2307c2446c54d91d4f1596343a1e1d5cab605b9cce11d0ab3858c"
+checksum = "0530892bb4fa575ee0da4b86f86c667132a94b74bb72160f58ee5a4afec74c23"
dependencies = [
- "embedded-hal 0.2.7",
+ "portable-atomic",
+]
+
+[[package]]
+name = "stm32-fmc"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72692594faa67f052e5e06dd34460951c21e83bc55de4feb8d2666e2f15480a2"
+dependencies = [
+ "embedded-hal 1.0.0",
]
[[package]]
name = "stm32-metapac"
-version = "16.0.0"
+version = "19.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc520f60f6653a32479a95b9180b33908f0cbbdf106609465ee7dea98f4f5b37"
+checksum = "a411079520dbccc613af73172f944b7cf97ba84e3bd7381a0352b6ec7bfef03b"
dependencies = [
"cortex-m",
"cortex-m-rt",
+ "defmt 0.3.100",
]
[[package]]
@@ -927,9 +1096,9 @@ dependencies = [
[[package]]
name = "syn"
-version = "2.0.98"
+version = "2.0.112"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "36147f1a48ae0ec2b5b3bc5b537d267457555a10dc06f3dbc8cb11ba3006d3b1"
+checksum = "21f182278bf2d2bcb3c88b1b08a37df029d71ce3d3ae26168e3c653b213b99d4"
dependencies = [
"proc-macro2",
"quote",
@@ -938,29 +1107,40 @@ dependencies = [
[[package]]
name = "thiserror"
-version = "2.0.12"
+version = "2.0.17"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "567b8a2dae586314f7be2a752ec7474332959c6460e02bde30d702a66d488708"
+checksum = "f63587ca0f12b72a0600bcba1d40081f830876000bb46dd2337a3051618f4fc8"
dependencies = [
"thiserror-impl",
]
[[package]]
name = "thiserror-impl"
-version = "2.0.12"
+version = "2.0.17"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7f7cf42b4507d8ea322120659672cf1b9dbb93f8f2d4ecfd6e51350ff5b17a1d"
+checksum = "3ff15c8ecd7de3849db632e14d18d2571fa09dfc5ed93479bc4485c7a517c913"
dependencies = [
"proc-macro2",
"quote",
- "syn 2.0.98",
+ "syn 2.0.112",
+]
+
+[[package]]
+name = "trait-set"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b79e2e9c9ab44c6d7c20d5976961b47e8f49ac199154daa514b77cd1ab536625"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 1.0.109",
]
[[package]]
name = "unicode-ident"
-version = "1.0.17"
+version = "1.0.22"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "00e2473a93778eb0bad35909dff6a10d28e63f792f16ed15e404fca9d5eeedbe"
+checksum = "9312f7c4f6ff9069b165498234ce8be658059c6728633667c526e27dc2cf1df5"
[[package]]
name = "usb-device"
@@ -968,7 +1148,7 @@ version = "0.3.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "98816b1accafbb09085168b90f27e93d790b4bfa19d883466b5e53315b5f06a6"
dependencies = [
- "heapless",
+ "heapless 0.8.0",
"portable-atomic",
]
@@ -1038,20 +1218,20 @@ dependencies = [
[[package]]
name = "zerocopy"
-version = "0.7.35"
+version = "0.8.31"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1b9b4fd18abc82b8136838da5d50bae7bdea537c574d8dc1a34ed098d6c166f0"
+checksum = "fd74ec98b9250adb3ca554bdde269adf631549f51d8a8f8f0a10b50f1cb298c3"
dependencies = [
"zerocopy-derive",
]
[[package]]
name = "zerocopy-derive"
-version = "0.7.35"
+version = "0.8.31"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fa4f8080344d4671fb4e831a13ad1e68092748387dfc4f55e356242fae12ce3e"
+checksum = "d8a8d209fdf45cf5138cbb5a506f6b52522a25afccc534d1475dad8e31105c6a"
dependencies = [
"proc-macro2",
"quote",
- "syn 2.0.98",
+ "syn 2.0.112",
]
diff --git a/firmware/Cargo.toml b/firmware/Cargo.toml
index 586415c..eaffa71 100644
--- a/firmware/Cargo.toml
+++ b/firmware/Cargo.toml
@@ -4,45 +4,47 @@ version = "0.1.0"
edition = "2024"
[dependencies]
-embassy-stm32 = { version = "0.2", features = [
- "defmt",
- "stm32f411ce",
- "memory-x",
- "time-driver-any",
- "exti",
+base64 = { version = "0.22.1", default-features = false }
+cortex-m = { version = "0.7.7", features = [
+ "inline-asm",
+ "critical-section-single-core",
] }
-embassy-sync = { version = "0.6", features = ["defmt"] }
-embassy-executor = { version = "0.7", features = [
- "nightly",
+cortex-m-rt = "0.7.5"
+critical-section = "1.2.0"
+defmt = "1.0.1"
+defmt-rtt = "1.1.0"
+embassy-executor = { version = "0.9.1", features = [
"arch-cortex-m",
"executor-thread",
"executor-interrupt",
"defmt",
] }
-embassy-time = { version = "0.4", features = [
+embassy-futures = { version = "0.1.2", features = ["defmt"] }
+embassy-stm32 = { version = "0.5.0", features = [
+ "stm32f411ce",
+ "defmt",
+ "memory-x",
+ "unstable-pac",
+ "time-driver-any",
+ "exti",
+] }
+embassy-sync = { version = "0.7.2", features = ["defmt"] }
+embassy-time = { version = "0.5.0", features = [
"defmt",
"defmt-timestamp-uptime",
"tick-hz-32_768",
] }
-embassy-usb = { version = "0.4", features = ["defmt"] }
-embassy-futures = { version = "0.1", features = ["defmt"] }
+embassy-usb = { version = "0.5.1", features = ["defmt"] }
+embedded-graphics = { version = "0.8.1", features = ["defmt"] }
+embedded-hal-bus = { version = "0.3.0", features = ["async"] }
+epd-waveshare = "0.6.0"
+panic-probe = { version = "1.0.0", features = ["print-defmt"] }
+postcard = { version = "1.1.3", features = ["defmt"] }
+serde = { version = "1.0.228", default-features = false, features = ["derive"] }
+static_cell = "2.1.1"
-defmt = "1.0"
-defmt-rtt = "1.0"
-
-cortex-m = { version = "0.7", features = [
- "inline-asm",
- "critical-section-single-core",
-] }
-cortex-m-rt = "0.7"
-embedded-hal-bus = { version = "0.3", features = ["async"] }
-panic-probe = { version = "1.0", features = ["print-defmt"] }
-critical-section = "1.1"
-
-epd-waveshare = "0.6"
-embedded-graphics = "0.8"
-usbd-hid = "0.8"
-base64 = { version = "0.22", default-features = false }
+[profile.dev]
+opt-level = "s"
[profile.release]
-opt-level = "z"
+opt-level = "s"
diff --git a/firmware/LICENSE b/firmware/LICENSE
deleted file mode 100644
index f288702..0000000
--- a/firmware/LICENSE
+++ /dev/null
@@ -1,674 +0,0 @@
- GNU GENERAL PUBLIC LICENSE
- Version 3, 29 June 2007
-
- Copyright (C) 2007 Free Software Foundation, Inc.
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
- Preamble
-
- The GNU General Public License is a free, copyleft license for
-software and other kinds of works.
-
- The licenses for most software and other practical works are designed
-to take away your freedom to share and change the works. By contrast,
-the GNU General Public License is intended to guarantee your freedom to
-share and change all versions of a program--to make sure it remains free
-software for all its users. We, the Free Software Foundation, use the
-GNU General Public License for most of our software; it applies also to
-any other work released this way by its authors. You can apply it to
-your programs, too.
-
- When we speak of free software, we are referring to freedom, not
-price. Our General Public Licenses are designed to make sure that you
-have the freedom to distribute copies of free software (and charge for
-them if you wish), that you receive source code or can get it if you
-want it, that you can change the software or use pieces of it in new
-free programs, and that you know you can do these things.
-
- To protect your rights, we need to prevent others from denying you
-these rights or asking you to surrender the rights. Therefore, you have
-certain responsibilities if you distribute copies of the software, or if
-you modify it: responsibilities to respect the freedom of others.
-
- For example, if you distribute copies of such a program, whether
-gratis or for a fee, you must pass on to the recipients the same
-freedoms that you received. You must make sure that they, too, receive
-or can get the source code. And you must show them these terms so they
-know their rights.
-
- Developers that use the GNU GPL protect your rights with two steps:
-(1) assert copyright on the software, and (2) offer you this License
-giving you legal permission to copy, distribute and/or modify it.
-
- For the developers' and authors' protection, the GPL clearly explains
-that there is no warranty for this free software. For both users' and
-authors' sake, the GPL requires that modified versions be marked as
-changed, so that their problems will not be attributed erroneously to
-authors of previous versions.
-
- Some devices are designed to deny users access to install or run
-modified versions of the software inside them, although the manufacturer
-can do so. This is fundamentally incompatible with the aim of
-protecting users' freedom to change the software. The systematic
-pattern of such abuse occurs in the area of products for individuals to
-use, which is precisely where it is most unacceptable. Therefore, we
-have designed this version of the GPL to prohibit the practice for those
-products. If such problems arise substantially in other domains, we
-stand ready to extend this provision to those domains in future versions
-of the GPL, as needed to protect the freedom of users.
-
- Finally, every program is threatened constantly by software patents.
-States should not allow patents to restrict development and use of
-software on general-purpose computers, but in those that do, we wish to
-avoid the special danger that patents applied to a free program could
-make it effectively proprietary. To prevent this, the GPL assures that
-patents cannot be used to render the program non-free.
-
- The precise terms and conditions for copying, distribution and
-modification follow.
-
- TERMS AND CONDITIONS
-
- 0. Definitions.
-
- "This License" refers to version 3 of the GNU General Public License.
-
- "Copyright" also means copyright-like laws that apply to other kinds of
-works, such as semiconductor masks.
-
- "The Program" refers to any copyrightable work licensed under this
-License. Each licensee is addressed as "you". "Licensees" and
-"recipients" may be individuals or organizations.
-
- To "modify" a work means to copy from or adapt all or part of the work
-in a fashion requiring copyright permission, other than the making of an
-exact copy. The resulting work is called a "modified version" of the
-earlier work or a work "based on" the earlier work.
-
- A "covered work" means either the unmodified Program or a work based
-on the Program.
-
- To "propagate" a work means to do anything with it that, without
-permission, would make you directly or secondarily liable for
-infringement under applicable copyright law, except executing it on a
-computer or modifying a private copy. Propagation includes copying,
-distribution (with or without modification), making available to the
-public, and in some countries other activities as well.
-
- To "convey" a work means any kind of propagation that enables other
-parties to make or receive copies. Mere interaction with a user through
-a computer network, with no transfer of a copy, is not conveying.
-
- An interactive user interface displays "Appropriate Legal Notices"
-to the extent that it includes a convenient and prominently visible
-feature that (1) displays an appropriate copyright notice, and (2)
-tells the user that there is no warranty for the work (except to the
-extent that warranties are provided), that licensees may convey the
-work under this License, and how to view a copy of this License. If
-the interface presents a list of user commands or options, such as a
-menu, a prominent item in the list meets this criterion.
-
- 1. Source Code.
-
- The "source code" for a work means the preferred form of the work
-for making modifications to it. "Object code" means any non-source
-form of a work.
-
- A "Standard Interface" means an interface that either is an official
-standard defined by a recognized standards body, or, in the case of
-interfaces specified for a particular programming language, one that
-is widely used among developers working in that language.
-
- The "System Libraries" of an executable work include anything, other
-than the work as a whole, that (a) is included in the normal form of
-packaging a Major Component, but which is not part of that Major
-Component, and (b) serves only to enable use of the work with that
-Major Component, or to implement a Standard Interface for which an
-implementation is available to the public in source code form. A
-"Major Component", in this context, means a major essential component
-(kernel, window system, and so on) of the specific operating system
-(if any) on which the executable work runs, or a compiler used to
-produce the work, or an object code interpreter used to run it.
-
- The "Corresponding Source" for a work in object code form means all
-the source code needed to generate, install, and (for an executable
-work) run the object code and to modify the work, including scripts to
-control those activities. However, it does not include the work's
-System Libraries, or general-purpose tools or generally available free
-programs which are used unmodified in performing those activities but
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diff --git a/firmware/README.md b/firmware/README.md
index fbb2ffa..6a9511a 100644
--- a/firmware/README.md
+++ b/firmware/README.md
@@ -1,5 +1,7 @@
# Inkclip Firmware
+> WARNING! Contents below are outdated; we are currently using a USB MIDI-based firmware for better cross-platform compatibility.
+
This is the firmware implementation for Inkclip. It implements a USB 2.0 HID device with the following reports:
- **Write Pattern:** Report ID = 0x01, Direction = Output (host to device), Size = 5,000 bytes.
diff --git a/firmware/src/app.rs b/firmware/src/app.rs
new file mode 100644
index 0000000..5641898
--- /dev/null
+++ b/firmware/src/app.rs
@@ -0,0 +1,247 @@
+use core::cmp::Ordering;
+
+use crate::{
+ epd::Epd,
+ midi::UsbMidi,
+ pack::{decode_7in8, encode_7in8},
+ sysex::{SysExEncoder, SysExParser},
+ uid::uid_base64,
+};
+use defmt::{error, info, warn};
+use embassy_executor::task;
+use embassy_usb::driver::EndpointError;
+use embedded_graphics::prelude::*;
+use epd_waveshare::{epd1in54::Display1in54, prelude::*};
+use serde::{Deserialize, Serialize};
+
+#[derive(Serialize)]
+enum DeviceType {
+ BWRev1, // Black-and-white, API Rev. 1
+}
+
+#[derive(Deserialize)]
+enum Chroma {
+ Black,
+}
+
+#[derive(Deserialize)]
+enum Request<'a> {
+ GetIdentification,
+ UpdateDisplay,
+ SetPattern {
+ from: u32,
+ to: u32,
+ chroma: Chroma,
+ pattern: &'a [u8],
+ },
+}
+
+#[derive(Serialize)]
+enum Response<'a> {
+ GetIdentification { serial: &'a str, model: DeviceType },
+ UpdateDisplay,
+ SetPattern,
+}
+
+const PATTERN_SIZE: usize = 5000;
+const MAGIC_NUMBER_LEN: usize = 1;
+const MAGIC_NUMBER: [u8; MAGIC_NUMBER_LEN] = [0x7d]; // Generic educational/R&D
+
+#[task]
+pub async fn app_task(epd: Epd, midi: UsbMidi) {
+ App {
+ epd,
+ midi,
+ pattern: [0; PATTERN_SIZE],
+ }
+ .run()
+ .await
+}
+
+struct App {
+ epd: Epd,
+ midi: UsbMidi,
+ pattern: [u8; PATTERN_SIZE],
+}
+
+impl App {
+ async fn handle_request<'a>(&mut self, req: Request<'a>) {
+ match req {
+ Request::SetPattern {
+ from,
+ to,
+ chroma,
+ pattern,
+ } => self.handle_set_pattern(from, to, chroma, pattern).await,
+ Request::UpdateDisplay => self.handle_update_display().await,
+ Request::GetIdentification => self.handle_get_identification().await,
+ }
+ }
+
+ async fn handle_set_pattern(&mut self, from: u32, to: u32, _chroma: Chroma, pattern: &[u8]) {
+ let from = from as usize;
+ let to = to as usize;
+ if from >= PATTERN_SIZE || to > PATTERN_SIZE || from > to {
+ warn!(
+ "SetPattern: 'from' and/or 'to' out of range (from = {}, to = {}, PATTERN_SIZE = {})",
+ from, to, PATTERN_SIZE
+ );
+ return;
+ }
+
+ let buf_size = match pattern.len().cmp(&(to - from)) {
+ Ordering::Less => {
+ warn!(
+ "SetPattern buffer too short (buf_size = {}, range_size = {})",
+ pattern.len(),
+ to - from,
+ );
+ pattern.len()
+ }
+ Ordering::Equal => pattern.len(),
+ Ordering::Greater => {
+ warn!(
+ "SetPattern buffer too long; truncating (buf_size = {}, range_size = {})",
+ pattern.len(),
+ to - from,
+ );
+ to - from
+ }
+ };
+
+ for (stride, &byte) in pattern[..buf_size].iter().enumerate() {
+ self.pattern[from + stride] = byte;
+ }
+
+ self.write_response(Response::SetPattern).await;
+ }
+
+ async fn handle_update_display(&mut self) {
+ let mut display = Display1in54::default();
+ display.set_rotation(DisplayRotation::Rotate180);
+ let width = display.size().width as i32;
+
+ for (stride, &byte) in self.pattern.iter().enumerate() {
+ for stroll in 0..8 {
+ let ix = stride as i32 * 8 + stroll;
+ let x = ix % width;
+ let y = ix / width;
+ display.set_pixel(Pixel(Point { x, y }, color_at(byte, stroll)));
+ }
+ }
+
+ self.epd.update_display(&display);
+ self.write_response(Response::UpdateDisplay).await;
+ }
+
+ async fn handle_get_identification(&mut self) {
+ self.write_response(Response::GetIdentification {
+ serial: uid_base64(),
+ model: DeviceType::BWRev1,
+ })
+ .await;
+ }
+
+ async fn write_response<'a>(&mut self, resp: Response<'a>) -> bool {
+ const RESP_N: usize = 1024;
+
+ let mut resp_buffer = [0u8; RESP_N];
+ let Ok(payload_slice) = postcard::to_slice(&resp, &mut resp_buffer) else {
+ error!("write_response: postcard encoding overflows the buffer");
+ return false;
+ };
+
+ let mut encode_buffer = [0u8; RESP_N];
+ encode_buffer[..MAGIC_NUMBER_LEN].copy_from_slice(&MAGIC_NUMBER);
+ let Some(encoded_len) = encode_7in8(payload_slice, &mut encode_buffer[MAGIC_NUMBER_LEN..])
+ else {
+ error!("write_response: 7-in-8 encoding overflows the buffer");
+ return false;
+ };
+
+ let mut sysex_encoder = SysExEncoder::<1024>::new();
+ let Some(encoded) = sysex_encoder.encode(&encode_buffer[..MAGIC_NUMBER_LEN + encoded_len])
+ else {
+ error!("write_response: USB MIDI encoding overflows the buffer");
+ return false;
+ };
+
+ for chunk in encoded.chunks(64) {
+ let Ok(_) = self.midi.write_packet(chunk).await else {
+ error!("write_response: failed to write response");
+ return false;
+ };
+ }
+ true
+ }
+
+ pub async fn run(&mut self) {
+ let mut sysex_parser = SysExParser::<8192>::new();
+
+ '_connection: loop {
+ self.midi.wait_connection().await;
+
+ 'packet: loop {
+ let mut packet_in_buf = [0u8; 64];
+
+ match self.midi.read_packet(&mut packet_in_buf).await {
+ Err(EndpointError::BufferOverflow) => {
+ error!(
+ "App: read more than 64 bytes at once from EP. This should not be happening!"
+ )
+ }
+ Err(EndpointError::Disabled) => {
+ info!("App: EP has been disabled; waiting to be enabled again.");
+ break 'packet;
+ }
+ Ok(nread) => {
+ for midi_packet in packet_in_buf[..nread].chunks_exact(4) {
+ let Some(midi_msg) = sysex_parser.feed(midi_packet) else {
+ continue;
+ };
+
+ let midi_msg_len = midi_msg.len();
+ if midi_msg_len < 2
+ || midi_msg[0] != 0xf0
+ || midi_msg[midi_msg_len - 1] != 0xf7
+ {
+ warn!("App: MIDI event not SysEx; dropping.");
+ continue;
+ }
+
+ let sysex = &mut midi_msg[1..midi_msg_len - 1];
+ if sysex.len() < MAGIC_NUMBER_LEN
+ || sysex[..MAGIC_NUMBER_LEN] != MAGIC_NUMBER
+ {
+ warn!(
+ "App: SysEx does not start with magic number; first {} bytes = {}. dropping.",
+ MAGIC_NUMBER,
+ sysex[..MAGIC_NUMBER_LEN]
+ );
+ continue;
+ }
+
+ let Ok(parsed) = postcard::from_bytes::(decode_7in8(
+ &mut sysex[MAGIC_NUMBER_LEN..],
+ )) else {
+ warn!("App: cannot parse payload. dropping.");
+ continue;
+ };
+ self.handle_request(parsed).await;
+ }
+ }
+ }
+ }
+ }
+ }
+}
+
+fn color_at(byte: u8, ix: i32) -> Color {
+ debug_assert!(0 <= ix && ix < 8);
+
+ if byte & (1u8 << ix) == 0 {
+ Color::White
+ } else {
+ Color::Black
+ }
+}
diff --git a/firmware/src/app/descriptor.rs b/firmware/src/app/descriptor.rs
deleted file mode 100644
index ff35bf7..0000000
--- a/firmware/src/app/descriptor.rs
+++ /dev/null
@@ -1,23 +0,0 @@
-use usbd_hid::descriptor::generator_prelude::*;
-
-// Watch out the terminology!
-// - An "output" report is a report from the host to the device (as the device is the one doing the output);
-// - An "input" report is a report from the device to the host (as it is presumably triggered by user input).
-#[gen_hid_descriptor(
- (usage_page = VENDOR_DEFINED_END, usage = 0x01, collection = APPLICATION) = {
- (report_id = 0x01, usage = 0x02) = {
- write_pattern = output;
- };
- (report_id = 0x02, usage = 0x03) = {
- serial_number_request = output;
- };
- (report_id = 0x02, usage = 0x03) = {
- serial_number_response = input;
- };
- }
-)]
-pub struct HIDReports {
- write_pattern: [u8; 5000],
- serial_number_request: u8,
- serial_number_response: [u8; 16],
-}
diff --git a/firmware/src/app/mod.rs b/firmware/src/app/mod.rs
deleted file mode 100644
index edc27e4..0000000
--- a/firmware/src/app/mod.rs
+++ /dev/null
@@ -1,86 +0,0 @@
-use defmt::*;
-
-use embedded_graphics::prelude::*;
-use epd_waveshare::epd1in54_v2::Display1in54;
-use epd_waveshare::prelude::*;
-
-use crate::device::epd::Epd;
-use crate::device::usb_hid::Hid;
-use crate::util::{uid_base64, uid_base64_bytes};
-
-pub mod descriptor;
-
-pub const USB_READ_BUFFER_SIZE: usize = 8192;
-pub const USB_WRITE_BUFFER_SIZE: usize = 32;
-
-const WRITE_PATTERN_REPORT_ID: u8 = 0x01;
-const SERIAL_NUMBER_REPORT_ID: u8 = 0x02;
-
-fn color_at(byte: u8, ix: i32) -> Color {
- defmt::debug_assert!(0 <= ix && ix < 8);
-
- if byte & (1u8 << ix) == 0 {
- Color::White
- } else {
- Color::Black
- }
-}
-
-pub struct MainLoop<'a> {
- pub hid: Hid<'a, USB_READ_BUFFER_SIZE, USB_WRITE_BUFFER_SIZE>,
- pub epd: Epd,
-}
-
-impl<'a> MainLoop<'a> {
- fn draw_pattern(&mut self, buf: &[u8]) {
- debug!("Updating display");
-
- let mut buf_size = buf.len();
-
- if buf_size < 5000 {
- warn!("WRITE_PATTERN buffer too short (buf_size = {})", buf_size);
- } else if buf_size > 5000 {
- warn!(
- "WRITE_PATTERN buffer too long; truncating (buf_size = {})",
- buf_size
- );
- buf_size = 5000;
- }
-
- let mut display = Display1in54::default();
- display.set_rotation(DisplayRotation::Rotate180);
- let width = display.size().width as i32;
-
- for (stride, &byte) in buf[..buf_size].iter().enumerate() {
- for stroll in 0..8 {
- let ix = stride as i32 * 8 + stroll;
- let x = ix % width;
- let y = ix / width;
- display.set_pixel(Pixel(Point { x, y }, color_at(byte, stroll)));
- }
- }
-
- self.epd.update_display(&display);
- }
-
- async fn send_serial_number(&mut self) {
- debug!("Sending serial number {}", uid_base64());
-
- self.hid
- .write(SERIAL_NUMBER_REPORT_ID, uid_base64_bytes())
- .await;
- }
-
- pub async fn run(&mut self) -> ! {
- let mut read_buf = [0u8; USB_READ_BUFFER_SIZE];
-
- loop {
- let (id, buf) = self.hid.read(&mut read_buf).await;
- match id {
- WRITE_PATTERN_REPORT_ID => self.draw_pattern(buf),
- SERIAL_NUMBER_REPORT_ID => self.send_serial_number().await,
- _ => warn!("Unknown report ID: {}", buf[0]),
- }
- }
- }
-}
diff --git a/firmware/src/device/mod.rs b/firmware/src/device/mod.rs
deleted file mode 100644
index 9b6ad26..0000000
--- a/firmware/src/device/mod.rs
+++ /dev/null
@@ -1,2 +0,0 @@
-pub mod epd;
-pub mod usb_hid;
diff --git a/firmware/src/device/usb_hid.rs b/firmware/src/device/usb_hid.rs
deleted file mode 100644
index 31e2774..0000000
--- a/firmware/src/device/usb_hid.rs
+++ /dev/null
@@ -1,120 +0,0 @@
-use defmt::*;
-
-use embassy_stm32::peripherals::USB_OTG_FS;
-use embassy_stm32::usb::{self, DmPin, DpPin};
-use embassy_usb::class::hid::{self, HidReader, HidReaderWriter, HidWriter};
-use embassy_usb::driver::EndpointError;
-
-use crate::init::Irqs;
-
-pub type UsbBuilder<'d> = embassy_usb::Builder<'d, usb::Driver<'d, USB_OTG_FS>>;
-
-pub fn get_usb_builder<'d>(
- usb_peri: USB_OTG_FS,
- dp: impl DpPin,
- dm: impl DmPin,
- ep_out_buffer: &'d mut [u8],
- driver_config: usb::Config,
- builder_config: embassy_usb::Config<'d>,
- config_descriptor: &'d mut [u8],
- bos_descriptor: &'d mut [u8],
- msos_descriptor: &'d mut [u8],
- control_buf: &'d mut [u8],
-) -> UsbBuilder<'d> {
- let driver = usb::Driver::new_fs(usb_peri, Irqs, dp, dm, ep_out_buffer, driver_config);
-
- return embassy_usb::Builder::new(
- driver,
- builder_config,
- config_descriptor,
- bos_descriptor,
- msos_descriptor,
- control_buf,
- );
-}
-
-pub struct Hid<'d, const READ_N: usize, const WRITE_N: usize> {
- reader: HidReader<'d, usb::Driver<'d, USB_OTG_FS>, READ_N>,
- writer: HidWriter<'d, usb::Driver<'d, USB_OTG_FS>, WRITE_N>,
-}
-
-impl<'d, const READ_N: usize, const WRITE_N: usize> Hid<'d, READ_N, WRITE_N> {
- pub fn new(
- usb_builder: &mut UsbBuilder<'d>,
- report_descriptor: &'d [u8],
- state: &'d mut hid::State<'d>,
- ) -> Hid<'d, READ_N, WRITE_N> {
- let hid_config = hid::Config {
- report_descriptor,
- request_handler: None,
- poll_ms: 10,
- max_packet_size: 64,
- };
-
- let (reader, writer) = HidReaderWriter::new(usb_builder, state, hid_config).split();
- return Hid { reader, writer };
- }
-
- async fn internal_read<'a, const USE_ID: bool>(
- &mut self,
- buf: &'a mut [u8; READ_N],
- ) -> (u8, &'a [u8]) {
- loop {
- match self.reader.read(buf).await {
- Ok(len) => {
- if USE_ID {
- if len < 1 {
- warn!("Received no report ID")
- } else {
- return (buf[0], &buf[1..len]);
- }
- } else {
- return (0, &buf[..len]);
- }
- }
- Err(hid::ReadError::BufferOverflow) => {
- warn!("Buffer overflow when reading from host")
- }
- Err(hid::ReadError::Disabled) => {
- info!("Endpoint disabled");
- self.reader.ready().await
- }
- Err(hid::ReadError::Sync(_)) => defmt::unreachable!(),
- }
- }
- }
-
- pub async fn read<'a>(&mut self, buf: &'a mut [u8; READ_N]) -> (u8, &'a [u8]) {
- self.internal_read::(buf).await
- }
-
- #[allow(dead_code)]
- pub async fn read_no_id<'a>(&mut self, buf: &'a mut [u8; READ_N]) -> &'a [u8] {
- self.internal_read::(buf).await.1
- }
-
- pub async fn write(&mut self, id: u8, report: &[u8]) {
- let payload_size = report.len() + 1;
-
- if payload_size > WRITE_N {
- error!(
- "Buffer overflow when writing to host (report_size = {})",
- payload_size
- );
- return;
- }
-
- let mut payload = [id; WRITE_N];
- payload[1..payload_size].copy_from_slice(report);
-
- self.writer
- .write(&payload[..payload_size])
- .await
- .unwrap_or_else(|err| match err {
- EndpointError::BufferOverflow => error!("Buffer overflow when writing to host"),
- EndpointError::Disabled => warn!("Endpoint disabled"),
- });
-
- info!("Written report #{}: {}", id, report);
- }
-}
diff --git a/firmware/src/device/epd.rs b/firmware/src/epd.rs
similarity index 77%
rename from firmware/src/device/epd.rs
rename to firmware/src/epd.rs
index e16a874..2e5b44f 100644
--- a/firmware/src/device/epd.rs
+++ b/firmware/src/epd.rs
@@ -1,3 +1,4 @@
+use embassy_stm32::Peri;
use embassy_stm32::gpio::{self, Level, Pull, Speed};
use embassy_stm32::spi::{self, MosiPin, SckPin, Spi};
use embassy_stm32::time::Hertz;
@@ -8,8 +9,11 @@ use epd_waveshare::epd1in54::Display1in54;
use epd_waveshare::epd1in54_v2::Epd1in54;
use epd_waveshare::prelude::*;
-type EpdSpiDevice =
- ExclusiveDevice, gpio::Output<'static>, Delay>;
+type EpdSpiDevice = ExclusiveDevice<
+ Spi<'static, embassy_stm32::mode::Blocking, spi::mode::Master>,
+ gpio::Output<'static>,
+ Delay,
+>;
pub struct Epd {
spi_device: EpdSpiDevice,
@@ -24,13 +28,13 @@ pub struct Epd {
impl Epd {
pub fn new(
- spi: SPI,
- cs: impl gpio::Pin,
- sck: impl SckPin,
- mosi: impl MosiPin,
- busy: impl gpio::Pin,
- dc: impl gpio::Pin,
- rst: impl gpio::Pin,
+ spi: Peri<'static, SPI>,
+ cs: Peri<'static, impl gpio::Pin>,
+ sck: Peri<'static, impl SckPin>,
+ mosi: Peri<'static, impl MosiPin>,
+ busy: Peri<'static, impl gpio::Pin>,
+ dc: Peri<'static, impl gpio::Pin>,
+ rst: Peri<'static, impl gpio::Pin>,
) -> Epd {
let cs_pin = gpio::Output::new(cs, Level::High, Speed::VeryHigh);
let busy_pin = gpio::Input::new(busy, Pull::Down);
diff --git a/firmware/src/init.rs b/firmware/src/init.rs
deleted file mode 100644
index 0035a5b..0000000
--- a/firmware/src/init.rs
+++ /dev/null
@@ -1,35 +0,0 @@
-use embassy_stm32::bind_interrupts;
-use embassy_stm32::peripherals::USB_OTG_FS;
-use embassy_stm32::time::Hertz;
-use embassy_stm32::usb;
-use embassy_stm32::{Config, Peripherals};
-
-bind_interrupts!(pub struct Irqs {
- OTG_FS => usb::InterruptHandler;
-});
-
-pub fn init_peripherals() -> Peripherals {
- let mut config = Config::default();
- {
- use embassy_stm32::rcc::*;
- config.rcc.hse = Some(Hse {
- freq: Hertz(12_000_000),
- mode: HseMode::Oscillator,
- });
- config.rcc.pll_src = PllSource::HSE;
- config.rcc.pll = Some(Pll {
- prediv: PllPreDiv::DIV12, // 12 / 12 = 1 MHz
- mul: PllMul::MUL192, // 1 * 192 = 192 MHz
- divp: Some(PllPDiv::DIV2), // 192 / 2 = 96 MHz <= 100 MHz max freq
- divq: Some(PllQDiv::DIV4), // 192 / 4 = 48 MHz necessary for USB
- divr: None,
- });
- config.rcc.ahb_pre = AHBPrescaler::DIV1;
- config.rcc.apb1_pre = APBPrescaler::DIV2;
- config.rcc.apb2_pre = APBPrescaler::DIV4;
- config.rcc.sys = Sysclk::PLL1_P;
- config.rcc.mux.clk48sel = mux::Clk48sel::PLL1_Q;
- }
-
- return embassy_stm32::init(config);
-}
diff --git a/firmware/src/main.rs b/firmware/src/main.rs
index ce6faa3..e0a3305 100644
--- a/firmware/src/main.rs
+++ b/firmware/src/main.rs
@@ -1,79 +1,76 @@
#![no_main]
#![no_std]
-#![feature(impl_trait_in_assoc_type)]
-use defmt::*;
-use embassy_executor::Spawner;
-use embassy_futures::join::join;
+use crate::{
+ app::app_task,
+ epd::Epd,
+ midi::{make_midi_class, make_usb_builder, usb_task},
+};
+use defmt_rtt as _;
+use embassy_executor::{Spawner, main};
+use embassy_stm32::{
+ Peripherals, bind_interrupts,
+ peripherals::USB_OTG_FS,
+ time::Hertz,
+ usb::{self},
+};
+use panic_probe as _;
-use device::epd::Epd;
-use device::usb_hid::Hid;
-use device::usb_hid::get_usb_builder;
-use embassy_stm32::usb;
-use embassy_usb::UsbVersion;
-use embassy_usb::class::hid;
-use usbd_hid::descriptor::generator_prelude::*;
-
-use init::init_peripherals;
-use util::uid_base64;
-
-use app::MainLoop;
-use app::descriptor::HIDReports;
-
-use {defmt_rtt as _, panic_probe as _};
+macro_rules! static_ref {
+ ($ty:ty = $expr:expr) => {{
+ static CELL: static_cell::StaticCell<$ty> = StaticCell::new();
+ CELL.init($expr)
+ }};
+}
mod app;
-mod device;
-mod init;
-mod util;
+mod epd;
+mod midi;
+mod pack;
+mod sysex;
+mod uid;
-#[embassy_executor::main]
-async fn main(_spawner: Spawner) {
+bind_interrupts!(pub struct Irqs {
+ OTG_FS => usb::InterruptHandler;
+});
+
+fn init_peripherals() -> Peripherals {
+ embassy_stm32::init({
+ use embassy_stm32::rcc::*;
+ let mut config = embassy_stm32::Config::default();
+
+ config.rcc.hse = Some(Hse {
+ freq: Hertz(12_000_000),
+ mode: HseMode::Oscillator,
+ });
+ config.rcc.pll_src = PllSource::HSE;
+ config.rcc.pll = Some(Pll {
+ prediv: PllPreDiv::DIV12, // 12 / 12 = 1 MHz
+ mul: PllMul::MUL192, // 1 * 192 = 192 MHz
+ divp: Some(PllPDiv::DIV2), // 192 / 2 = 96 MHz <= 100 MHz max freq
+ divq: Some(PllQDiv::DIV4), // 192 / 4 = 48 MHz necessary for USB
+ divr: None,
+ });
+ config.rcc.ahb_pre = AHBPrescaler::DIV1;
+ config.rcc.apb1_pre = APBPrescaler::DIV2;
+ config.rcc.apb2_pre = APBPrescaler::DIV4;
+ config.rcc.sys = Sysclk::PLL1_P;
+ config.rcc.mux.clk48sel = mux::Clk48sel::PLL1_Q;
+
+ config
+ })
+}
+
+#[main]
+async fn main(spawner: Spawner) {
let peri = init_peripherals();
-
- info!("Initialized peripherals");
-
let epd = Epd::new(
peri.SPI1, peri.PA4, peri.PA5, peri.PA7, peri.PB10, peri.PB0, peri.PB1,
);
- info!("Established SPI link to e-paper display");
+ let mut usb_builder = make_usb_builder(peri.USB_OTG_FS, peri.PA12, peri.PA11);
+ let midi = make_midi_class(&mut usb_builder);
- let mut ep_out_buffer = [0u8; 256];
- let mut config_descriptor = [0; 256];
- let mut control_buf = [0; 256];
- let mut state = hid::State::new();
-
- let mut builder_config = embassy_usb::Config::new(0x1209, 0xc9c9);
- builder_config.manufacturer = Some("daylily");
- builder_config.product = Some("“Inkclip” 1.54″ ePaper Accessory");
- builder_config.serial_number = Some(uid_base64());
-
- // Caution: past USB 2.0 (including USB 2.1 aka 2.0 LPM), BOS descriptors become necessary
- builder_config.bcd_usb = UsbVersion::Two;
-
- let mut builder = get_usb_builder(
- peri.USB_OTG_FS,
- peri.PA12,
- peri.PA11,
- &mut ep_out_buffer,
- usb::Config::default(),
- builder_config,
- &mut config_descriptor,
- &mut [], // USB 2.0 does not require BOS descriptors
- &mut [], // Non vendor-specific devices/interfaces do not require MS OS descriptors
- &mut control_buf,
- );
-
- let usb_hid = Hid::new(&mut builder, HIDReports::desc(), &mut state);
-
- let mut main_loop = MainLoop { epd, hid: usb_hid };
- let main_fut = main_loop.run();
-
- let mut usb_device = builder.build();
- let usb_fut = usb_device.run();
-
- info!("Initialized USB HID device");
-
- join(main_fut, usb_fut).await;
+ spawner.must_spawn(usb_task(usb_builder));
+ spawner.must_spawn(app_task(epd, midi));
}
diff --git a/firmware/src/midi.rs b/firmware/src/midi.rs
new file mode 100644
index 0000000..3cab2bc
--- /dev/null
+++ b/firmware/src/midi.rs
@@ -0,0 +1,52 @@
+use defmt_rtt as _;
+use embassy_executor::task;
+use embassy_stm32::{
+ Peri,
+ peripherals::USB_OTG_FS,
+ usb::{self, DmPin, DpPin},
+};
+use embassy_usb::{UsbVersion, class::midi::MidiClass};
+use panic_probe as _;
+use static_cell::StaticCell;
+
+use crate::{Irqs, uid};
+
+pub type UsbDriver = usb::Driver<'static, USB_OTG_FS>;
+pub type UsbBuilder = embassy_usb::Builder<'static, UsbDriver>;
+pub type UsbMidi = MidiClass<'static, UsbDriver>;
+
+pub fn make_usb_builder(
+ peri: Peri<'static, USB_OTG_FS>,
+ dp: Peri<'static, impl DpPin>,
+ dm: Peri<'static, impl DmPin>,
+) -> UsbBuilder {
+ let ep_out_buffer = static_ref!([u8; 4096] = [0; 4096]);
+ let config_descriptor = static_ref!([u8; 256] = [0; 256]);
+ let control_buf = static_ref!([u8; 256] = [0; 256]);
+
+ let mut config = embassy_usb::Config::new(0x1209, 0xc9c9);
+ config.manufacturer = Some("Project Daylily");
+ config.product = Some("Inkclip BW");
+ config.serial_number = Some(uid::uid_base64());
+ config.bcd_usb = UsbVersion::Two;
+
+ let usb_driver = usb::Driver::new_fs(peri, Irqs, dp, dm, ep_out_buffer, usb::Config::default());
+ embassy_usb::Builder::new(
+ usb_driver,
+ config,
+ config_descriptor,
+ &mut [],
+ &mut [],
+ control_buf,
+ )
+}
+
+pub fn make_midi_class(builder: &mut UsbBuilder) -> UsbMidi {
+ UsbMidi::new(builder, 1, 1, 64)
+}
+
+#[task]
+pub async fn usb_task(builder: UsbBuilder) -> ! {
+ let mut device = builder.build();
+ device.run().await;
+}
diff --git a/firmware/src/pack.rs b/firmware/src/pack.rs
new file mode 100644
index 0000000..c99dc4a
--- /dev/null
+++ b/firmware/src/pack.rs
@@ -0,0 +1,51 @@
+// 7-in-8 encoding. Each 7 bytes can be encoded into 8 bytes with all-0 MSB's. This is useful
+// for sending data over exotic protocols like MIDI SysEx.
+
+// Decode in-place, returning the decoded slice.
+pub fn decode_7in8(payload: &mut [u8]) -> &mut [u8] {
+ let mut decoded_len = 0;
+ for stride in 0..payload.len().div_ceil(8) {
+ // Most significant bits of a 7-in-8 group
+ let msbs = payload[8 * stride];
+
+ for stroll in 1..8 {
+ let in_ix = 8 * stride + stroll;
+ if in_ix >= payload.len() {
+ break;
+ }
+
+ payload[decoded_len] =
+ (payload[in_ix] & 0b01111111) | ((msbs << (8 - stroll)) & 0b10000000);
+ decoded_len += 1;
+ }
+ }
+ &mut payload[..decoded_len]
+}
+
+// Encode into provided output buffer, returning the length of the output, or None if the buffer is too small.
+pub fn encode_7in8<'a>(payload: &[u8], output: &'a mut [u8]) -> Option {
+ let mut encoded_len = 0;
+ for stride in 0..payload.len().div_ceil(7) {
+ let msbs_ix = encoded_len;
+ if encoded_len >= output.len() {
+ return None;
+ }
+ output[msbs_ix] = 0;
+ encoded_len += 1;
+
+ for stroll in 1..8 {
+ let in_ix = 7 * stride + stroll - 1;
+ if in_ix >= payload.len() {
+ break;
+ }
+
+ if encoded_len >= output.len() {
+ return None;
+ }
+ output[msbs_ix] |= (payload[in_ix] & 0b10000000) >> (8 - stroll);
+ output[encoded_len] = payload[in_ix] & 0b01111111;
+ encoded_len += 1;
+ }
+ }
+ Some(encoded_len)
+}
diff --git a/firmware/src/sysex.rs b/firmware/src/sysex.rs
new file mode 100644
index 0000000..6574480
--- /dev/null
+++ b/firmware/src/sysex.rs
@@ -0,0 +1,141 @@
+use defmt::{error, warn};
+
+pub struct SysExParser {
+ buf: [u8; N],
+ len: usize,
+}
+
+impl SysExParser {
+ pub fn new() -> Self {
+ SysExParser {
+ buf: [0u8; N],
+ len: 0,
+ }
+ }
+
+ pub fn feed(&mut self, packet: &[u8]) -> Option<&mut [u8]> {
+ if packet.len() != 4 {
+ error!(
+ "Got a UDB MIDI packet of length {} != 4; dropping",
+ packet.len()
+ );
+ return None;
+ }
+ match packet[0] & 0x0f {
+ 0x04 => self.extend_buf(&packet[1..]),
+ 0x05 => self.extend_buf_fin(&packet[1..2]),
+ 0x06 => self.extend_buf_fin(&packet[1..3]),
+ 0x07 => self.extend_buf_fin(&packet[1..4]),
+ _ => self.reset(),
+ }
+ }
+
+ fn extend_buf(&mut self, data: &[u8]) -> Option<&mut [u8]> {
+ let new_len = self.len + data.len();
+ if new_len > N {
+ warn!("USB MIDI parsing overflowed buffer! Discarding partially parsed payload.");
+ self.len = 0;
+ return None;
+ }
+
+ self.buf[self.len..new_len].copy_from_slice(data);
+ self.len = new_len;
+ None
+ }
+
+ fn extend_buf_fin(&mut self, data: &[u8]) -> Option<&mut [u8]> {
+ let new_len = self.len + data.len();
+ if new_len > N {
+ warn!("USB MIDI parsing overflowed buffer! Discarding partially parsed payload.");
+ self.len = 0;
+ return None;
+ }
+
+ self.buf[self.len..new_len].copy_from_slice(data);
+ self.len = new_len;
+ let result = &mut self.buf[..self.len];
+ self.len = 0;
+ Some(result)
+ }
+
+ fn reset(&mut self) -> Option<&mut [u8]> {
+ self.len = 0;
+ None
+ }
+}
+
+pub struct SysExEncoder {
+ buf: [u8; N],
+ len: usize,
+}
+
+impl SysExEncoder {
+ pub fn new() -> Self {
+ SysExEncoder {
+ buf: [0u8; N],
+ len: 0,
+ }
+ }
+
+ fn clear(&mut self) {
+ self.len = 0;
+ }
+
+ fn feed(&mut self, data: &[u8; 3]) -> bool {
+ if self.len + 4 > N {
+ error!("Encoding more would overflow the buffer");
+ return false;
+ }
+
+ self.buf[self.len] = 0x04;
+ self.buf[self.len + 1] = data[0];
+ self.buf[self.len + 2] = data[1];
+ self.buf[self.len + 3] = data[2];
+ self.len += 4;
+ true
+ }
+
+ fn feed_fin(&mut self, n: u8, data: &[u8; 3]) -> Option<&[u8]> {
+ if n == 0 || n > 3 {
+ error!("Inconsistent number of bytes");
+ return None;
+ }
+ if self.len + 4 > N {
+ error!("Encoding more would overflow the buffer");
+ return None;
+ }
+
+ self.buf[self.len] = 0x04 + n;
+ self.buf[self.len + 1] = data[0];
+ self.buf[self.len + 2] = data[1];
+ self.buf[self.len + 3] = data[2];
+ self.len += 4;
+ Some(&self.buf[..self.len])
+ }
+
+ pub fn encode(&mut self, data: &[u8]) -> Option<&[u8]> {
+ self.clear();
+
+ if data.len() == 0 {
+ return self.feed_fin(2, &[0xf0, 0xf7, 0x00]);
+ }
+ if data.len() == 1 {
+ return self.feed_fin(3, &[0xf0, data[0], 0xf7]);
+ }
+
+ self.feed(&[0xf0, data[0], data[1]]);
+ for chunk in data[2..].chunks(3) {
+ match chunk.len() {
+ 3 => {
+ if !self.feed(&[chunk[0], chunk[1], chunk[2]]) {
+ return None;
+ }
+ }
+ 2 => return self.feed_fin(3, &[chunk[0], chunk[1], 0xf7]),
+ 1 => return self.feed_fin(2, &[chunk[0], 0xf7, 0x00]),
+ _ => unreachable!(),
+ }
+ }
+ self.feed_fin(1, &[0xf7, 0x00, 0x00])
+ }
+}
diff --git a/firmware/src/util.rs b/firmware/src/uid.rs
similarity index 91%
rename from firmware/src/util.rs
rename to firmware/src/uid.rs
index 76bf3e0..3d38c31 100644
--- a/firmware/src/util.rs
+++ b/firmware/src/uid.rs
@@ -6,7 +6,7 @@ pub fn uid_base64() -> &'static str {
}
#[allow(static_mut_refs)]
-pub fn uid_base64_bytes() -> &'static [u8] {
+pub fn uid_base64_bytes() -> &'static [u8; 16] {
static mut UID_BASE64: [u8; 16] = [0; 16];
static mut LOADED: bool = false;
critical_section::with(|_| unsafe {