Spi support

.vscode/settings.json

@@ -0,0 +1,7 @@
+{
+    "rust-analyzer.check.allTargets": false,
+    "rust-analyzer.linkedProjects": [
+        "examples/hpm5300evk/Cargo.toml",
+        "examples/hpm6e00evk/Cargo.toml"
+    ]
+}

README.md

@@ -19,19 +19,21 @@ This crate is a working-in-progress and not ready for use.
   - [x] MBX, blocking and async
   - [x] FEMC
     - [x] SDRAM init
+  - [x] SPI blocking
+    - [x] QSPI driver
 - Long term Plans
   - [ ] andes-riscv for specific CSRs
   - [ ] hpm-riscv-rt for customized runtime (riscv-rt is not fit)
   - [ ] CPU1 support - how to?
 
-| MCU Family | Demo | PAC | SYSCTL | GPIO | UART | I2C | MBX | ADC | DMA |
-|------------|:----:|:---:|:------:|:----:|:----:|:---:|:---:|:---:|:---:|
-| HPM6700    |  ✓   |  ✓  |        |      |      |     |     |     |     |
-| HPM6300    |  ✓   |  ✓  |        |      |      |     |     |     |     |
-| HPM6200    |      |  ✓  |        |      |      |     |     |     |     |
-| HPM5300    |  ✓   |  ✓  |   ✓    |  ✓   |  ✓   |  ✓  |  ✓  |     |     |
-| HPM6800    |      |  ✓  |        |      |      |     |     |     |     |
-| HPM6E00    |  ✓   |  ✓  |   ✓    |  ✓   |  ✓   |  ?  |  ?  |     |     |
+| MCU Family | Demo | PAC | SYSCTL | GPIO | UART | I2C | MBX | ADC | DMA | SPI |
+|------------|:----:|:---:|:------:|:----:|:----:|:---:|:---:|:---:|:---:|:---:|
+| HPM6700    |  ✓   |  ✓  |        |      |      |     |     |     |     |     |
+| HPM6300    |  ✓   |  ✓  |        |      |      |     |     |     |     |     |
+| HPM6200    |      |  ✓  |        |      |      |     |     |     |     |     |
+| HPM5300    |  ✓   |  ✓  |   ✓    |  ✓   |  ✓   |  ✓  |  ✓  |     |     |  ✓  |
+| HPM6800    |      |  ✓  |        |      |      |     |     |     |     |     |
+| HPM6E00    |  ✓   |  ✓  |   ✓    |  ✓   |  ✓   |  ?  |  ?  |     |     |  ?  |
 
 - ✓: Implemented
 - ?: Requires demo verification

build.rs

@@ -139,10 +139,15 @@ fn main() {
         (("uart", "DE"), quote!(crate::uart::DePin)),
         (("i2c", "SDA"), quote!(crate::i2c::SdaPin)),
         (("i2c", "SCL"), quote!(crate::i2c::SclPin)),
-        //(("spi", "MISO"), quote!(crate::spi::MisoPin)),
-        //(("spi", "MOSI"), quote!(crate::spi::MosiPin)),
-        //(("spi", "SCK"), quote!(crate::spi::SckPin)),
-        //(("spi", "CS0"), quote!(crate::spi::Cs0Pin)),
+        (("spi", "SCLK"), quote!(crate::spi::SclkPin)),
+        (("spi", "CS0"), quote!(crate::spi::CsPin)),
+        (("spi", "CS1"), quote!(crate::spi::CsPin)),
+        (("spi", "CS2"), quote!(crate::spi::CsPin)),
+        (("spi", "CS3"), quote!(crate::spi::CsPin)),
+        (("spi", "MOSI"), quote!(crate::spi::MosiPin)),
+        (("spi", "MISO"), quote!(crate::spi::MisoPin)),
+        (("spi", "DAT2"), quote!(crate::spi::D2Pin)),
+        (("spi", "DAT3"), quote!(crate::spi::D3Pin)),
     ]
     .into();
 
@@ -161,6 +166,26 @@ fn main() {
                         pin_trait_impl!(#tr, #peri, #pin_name, #alt);
                     })
                 }
+
+                // Spi is special
+                if regs.kind == "spi" && pin.signal.starts_with("CS") {
+                    let peri = format_ident!("{}", p.name);
+                    let pin_name = format_ident!("{}", pin.pin);
+                    let alt = pin.alt.unwrap_or(0);
+                    let cs_index: u8 = match pin.signal {
+                        "CS0" => 1,
+                        "CS1" => 2,
+                        "CS2" => 4,
+                        "CS3" => 8,
+                        // CSN pin is available on hpm67 chips
+                        "CSN" => 0,
+                        _ => unreachable!("CS pin not found {:?}", pin.signal),
+                    };
+                    g.extend(quote! {
+                        spi_cs_pin_trait_impl!(crate::spi::CsIndexPin, #peri, #pin_name, #alt, #cs_index);
+                    });
+                }
+
                 // ADC is special
                 if regs.kind == "adc" {
                     // TODO

examples/hpm5300evk/Cargo.toml

@@ -4,7 +4,7 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
-hpm-hal = { path = "../..", features = ["rt", "embassy", "hpm5361"] }
+hpm-hal = { path = "../..", features = ["rt", "embassy", "hpm5301"] }
 
 panic-halt = "0.2.0"
 riscv-rt = "0.12.2"
@@ -23,6 +23,10 @@ riscv = { version = "0.11.1", features = ["critical-section-single-hart"] }
 embedded-hal = "1.0.0"
 embedded-io = "0.6.1"
 futures-util = { version = "0.3.30", default-features = false }
+tinygif = "0.0.4"
+heapless = "0.8.0"
+micromath = "2.1.0"
+embedded-hal-bus = "0.2.0"
 
 
 [profile.release]