stm32.h: Various updates, mostly to help STM32F1 line support.

Add STM32_HAVE_USB feature test macro requirement for
<series/stm32.h>. This will let us test if we've got a USB peripheral.
wirish/stm32f1/boards_setup.cpp is set up to use this when turning on
USB CDC ACM support at init() time.

Rework the STM32F1 <series/stm32.h> to make it easier to support the
various lines that subdivide that series. We don't really support
anything besides performance line yet, but there's been enough
enthusiasm for value and connectivity line support in the past that
these hooks seem worth adding. This means adding an STM32_F1_LINE
macro and STM32_F1_LINE_[PERFORMANCE,VALUE,ACCESS,CONNECTIVITY] macros
for values that STM32_F1_LINE can take, and generalizing the rest of
the file to begin taking this into account. Some TODOs remain, but
filling these in is the responsibility of future libmaple porting
efforts.

One pleasant consequence of the F1 stm32.h rework is that the build
system no longer has to tell us what density of F103 we're building
for, so remove that from the relevant support/make/board-includes/
files.

Add some tweaks to <libmaple/stm32.h> and the STM32F2 stm32.h header
to make sure this went through properly, and continues to go through
properly in the future.

5 files changed, 0 insertions, 10 deletions

diff --git a/support/make/board-includes/maple.mk b/support/make/board-includes/maple.mk
index a84f0ac..d31ad83 100644
--- a/support/make/board-includes/maple.mk
+++ b/support/make/board-includes/maple.mk
@@ -2,6 +2,4 @@ MCU := STM32F103RB
 PRODUCT_ID := 0003
 ERROR_LED_PORT := GPIOA
 ERROR_LED_PIN  := 5
-DENSITY := STM32_MEDIUM_DENSITY
-TARGET_FLAGS += -D$(DENSITY)
 MCU_SERIES := stm32f1
diff --git a/support/make/board-includes/maple_RET6.mk b/support/make/board-includes/maple_RET6.mk
index 8bd9b90..d06f068 100644
--- a/support/make/board-includes/maple_RET6.mk
+++ b/support/make/board-includes/maple_RET6.mk
@@ -2,6 +2,4 @@ MCU := STM32F103RE
 PRODUCT_ID := 0003
 ERROR_LED_PORT := GPIOA
 ERROR_LED_PIN := 5
-DENSITY := STM32_HIGH_DENSITY
-TARGET_FLAGS += -D$(DENSITY)
 MCU_SERIES := stm32f1
diff --git a/support/make/board-includes/maple_mini.mk b/support/make/board-includes/maple_mini.mk
index 4a3e2ab..835adc3 100644
--- a/support/make/board-includes/maple_mini.mk
+++ b/support/make/board-includes/maple_mini.mk
@@ -2,6 +2,4 @@ MCU := STM32F103CB
 PRODUCT_ID := 0003
 ERROR_LED_PORT := GPIOB
 ERROR_LED_PIN  := 1
-DENSITY := STM32_MEDIUM_DENSITY
-TARGET_FLAGS += -D$(DENSITY)
 MCU_SERIES := stm32f1
diff --git a/support/make/board-includes/maple_native.mk b/support/make/board-includes/maple_native.mk
index cd07c21..3e88e7b 100644
--- a/support/make/board-includes/maple_native.mk
+++ b/support/make/board-includes/maple_native.mk
@@ -2,6 +2,4 @@ MCU := STM32F103ZE
 PRODUCT_ID := 0003
 ERROR_LED_PORT := GPIOC
 ERROR_LED_PIN  := 15
-DENSITY := STM32_HIGH_DENSITY
-TARGET_FLAGS += -D$(DENSITY)
 MCU_SERIES := stm32f1
diff --git a/support/make/board-includes/olimex_stm32_h103.mk b/support/make/board-includes/olimex_stm32_h103.mk
index 1d84cc2..96d6976 100644
--- a/support/make/board-includes/olimex_stm32_h103.mk
+++ b/support/make/board-includes/olimex_stm32_h103.mk
@@ -2,6 +2,4 @@ MCU := STM32F103RB
 PRODUCT_ID := 0003
 ERROR_LED_PORT := GPIOC
 ERROR_LED_PIN := 12
-DENSITY := STM32_MEDIUM_DENSITY
-TARGET_FLAGS += -D$(DENSITY)
 MCU_SERIES := stm32f1