mirror of
https://github.com/apache/nuttx.git
synced 2026-06-08 01:42:58 +08:00
SAMV7: Port the SAMA5 timer/counter driver to the SAMV7
This commit is contained in:
Gregory Nutt
+233
-48
@@ -254,6 +254,10 @@ config SAMV7_SSC
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bool
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default n
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config SAMV7_HAVE_TC
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bool
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default n
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config SAMV7_HAVE_TWIHS2
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bool
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default n
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@@ -419,64 +423,24 @@ config SAMV7_SSC0
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select SAMV7_SSC
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config SAMV7_TC0
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bool "Timer/Counter 0 (TC0)"
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bool "Timer Counter 0 (ch. 0, 1, 2) (TC0)"
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default n
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select SAMV7_TC
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select SAMV7_HAVE_TC
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config SAMV7_TC1
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bool "Timer/Counter 1 (TC1)"
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bool "Timer Counter 1 (ch. 3, 4, 5) (TC1)"
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default n
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select SAMV7_TC
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select SAMV7_HAVE_TC
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config SAMV7_TC2
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bool "Timer/Counter 2 (TC2)"
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bool "Timer Counter 2 (ch. 6, 7, 8) (TC2)"
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default n
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select SAMV7_TC
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select SAMV7_HAVE_TC
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config SAMV7_TC3
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bool "Timer/Counter 3 (TC3)"
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bool "Timer Counter 3 (ch. 9, 10, 11) (TC2)"
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default n
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select SAMV7_TC
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config SAMV7_TC4
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bool "Timer/Counter 4 (TC4)"
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default n
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select SAMV7_TC
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config SAMV7_TC5
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bool "Timer/Counter 5 (TC5)"
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default n
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select SAMV7_TC
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config SAMV7_TC6
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bool "Timer/Counter 6 (TC6)"
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default n
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select SAMV7_TC
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config SAMV7_TC7
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bool "Timer/Counter 7 (TC7)"
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default n
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select SAMV7_TC
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config SAMV7_TC8
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bool "Timer/Counter 8 (TC8)"
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default n
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select SAMV7_TC
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config SAMV7_TC9
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bool "Timer/Counter 9 (TC8)"
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default n
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select SAMV7_TC
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config SAMV7_TC10
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bool "Timer/Counter 10 (TC9)"
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default n
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select SAMV7_TC
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config SAMV7_TC11
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bool "Timer/Counter 11 (TC8)"
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default n
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select SAMV7_TC
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select SAMV7_HAVE_TC
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config SAMV7_TRNG
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bool "True Random Number Generator (TRNG)"
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@@ -1208,6 +1172,227 @@ config SAMV7_SSC_DUMPBUFFERS
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endmenu # SSC Configuration
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if SAMV7_HAVE_TC
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menu "Timer/counter Configuration"
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if SAMV7_TC0
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config SAMV7_TC0_CLK0
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bool "Enable TC0 channel 0 clock input pin"
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default n
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config SAMV7_TC0_TIOA0
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bool "Enable TC0 channel 0 output A"
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default n
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config SAMV7_TC0_TIOB0
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bool "Enable TC0 channel 0 output B"
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default n
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config SAMV7_TC0_CLK1
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bool "Enable TC0 channel 1 clock input pin"
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default n
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config SAMV7_TC0_TIOA1
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bool "Enable TC0 channel 1 output A"
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default n
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config SAMV7_TC0_TIOB1
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bool "Enable TC0 channel 1 output B"
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default n
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config SAMV7_TC0_CLK2
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bool "Enable TC0 channel 2 clock input pin"
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default n
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config SAMV7_TC0_TIOA2
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bool "Enable TC0 channel 2 output A"
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default n
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config SAMV7_TC0_TIOB2
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bool "Enable TC0 channel 2 output B"
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default n
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endif # SAMV7_TC0
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if SAMV7_TC1
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config SAMV7_TC1_CLK3
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bool "Enable TC1 channel 3 clock input pin"
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default n
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config SAMV7_TC1_TIOA3
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bool "Enable TC1 channel 3 output A"
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default n
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config SAMV7_TC1_TIOB3
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bool "Enable TC1 channel 3 output B"
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default n
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config SAMV7_TC1_CLK4
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bool "Enable TC1 channel 4 clock input pin"
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default n
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config SAMV7_TC1_TIOA4
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bool "Enable TC1 channel 4 output A"
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default n
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config SAMV7_TC1_TIOB4
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bool "Enable TC1 channel 4 output B"
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default n
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config SAMV7_TC1_CLK5
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bool "Enable TC1 channel 5 clock input pin"
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default n
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config SAMV7_TC1_TIOA5
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bool "Enable TC1 channel 5 output A"
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default n
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config SAMV7_TC1_TIOB5
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bool "Enable TC1 channel 5 output B"
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default n
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endif # SAMV7_TC1
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if SAMV7_TC2
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config SAMV7_TC2_CLK6
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bool "Enable TC2 channel 6 clock input pin"
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default n
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config SAMV7_TC2_TIOA6
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bool "Enable TC2 channel 6 output A"
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default n
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config SAMV7_TC2_TIOB6
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bool "Enable TC2 channel 6 output B"
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default n
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config SAMV7_TC2_CLK7
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bool "Enable TC2 channel 7 clock input pin"
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default n
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config SAMV7_TC2_TIOA7
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bool "Enable TC2 channel 7 output A"
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default n
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config SAMV7_TC2_TIOB7
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bool "Enable TC2 channel 7 output B"
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default n
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config SAMV7_TC2_CLK8
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bool "Enable TC2 channel 8 clock input pin"
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default n
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config SAMV7_TC2_TIOA8
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bool "Enable TC2 channel 8 output A"
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default n
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config SAMV7_TC2_TIOB8
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bool "Enable TC2 channel 8 output B"
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default n
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endif # SAMV7_TC2
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if SAMV7_TC3
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config SAMV7_TC3_CLK9
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bool "Enable TC3 channel 9 clock input pin"
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default n
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config SAMV7_TC3_TIOA9
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bool "Enable TC3 channel 9 output A"
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default n
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config SAMV7_TC3_TIOB9
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bool "Enable TC3 channel 9 output B"
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default n
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config SAMV7_TC3_CLK10
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bool "Enable TC3 channel 10 clock input pin"
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default n
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config SAMV7_TC3_TIOA10
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bool "Enable TC3 channel 10 output A"
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default n
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config SAMV7_TC3_TIOB10
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bool "Enable TC3 channel 10 output B"
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default n
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config SAMV7_TC3_CLK11
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bool "Enable TC3 channel 11 clock input pin"
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default n
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config SAMV7_TC3_TIOA11
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bool "Enable TC3 channel 11 output A"
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default n
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config SAMV7_TC3_TIOB11
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bool "Enable TC3 channel 11 output B"
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default n
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endif # SAMV7_TC3
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config SAMV7_ONESHOT
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bool "TC one-shot wrapper"
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default n if !SCHED_TICKLESS
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default y if SCHED_TICKLESS
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---help---
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Enable a wrapper around the low level timer/counter functions to
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support one-shot timer.
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config SAMV7_FREERUN
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bool "TC free-running wrapper"
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default n if !SCHED_TICKLESS
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default y if SCHED_TICKLESS
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---help---
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Enable a wrapper around the low level timer/counter functions to
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support a free-running timer.
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if SCHED_TICKLESS
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config SAMV7_TICKLESS_ONESHOT
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int "Tickless one-shot timer channel"
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default 0
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range 0 8
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---help---
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If the Tickless OS feature is enabled, the one clock must be
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assigned to provided the one-shot timer needed by the OS.
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config SAMV7_TICKLESS_FREERUN
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int "Tickless free-running timer channel"
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default 1
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range 0 8
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---help---
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If the Tickless OS feature is enabled, the one clock must be
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assigned to provided the free-running timer needed by the OS.
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endif
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config SAMV7_TC_DEBUG
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bool "TC debug"
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depends on DEBUG
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default n
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---help---
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Output high level Timer/Counter device debug information.
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Requires also DEBUG. If this option AND DEBUG_VERBOSE are
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enabled, then the system will be overwhelmed the timer debug
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output. If DEBUG_VERBOSE is disabled, then debug output will
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only indicate if/when timer-related errors occur. This
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latter mode is completely usable.
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config SAMV7_TC_REGDEBUG
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bool "TC register level debug"
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depends on DEBUG
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default n
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---help---
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Output detailed register-level Timer/Counter device debug
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information. Very invasive! Requires also DEBUG.
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endmenu # Timer/counter Configuration
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endif # SAMV7_HAVE_TC
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menu "HSMCI device driver options"
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depends on SAMV7_HSMCI
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@@ -160,6 +160,19 @@ ifeq ($(CONFIG_SAMV7_SSC),y)
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CHIP_CSRCS += sam_ssc.c
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endif
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ifeq ($(CONFIG_SAMV7_HAVE_TC),y)
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CHIP_CSRCS += sam_tc.c
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ifeq ($(CONFIG_SAMV7_ONESHOT),y)
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CHIP_CSRCS += sam_oneshot.c
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endif
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ifeq ($(CONFIG_SAMV7_FREERUN),y)
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CHIP_CSRCS += sam_freerun.c
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endif
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ifeq ($(CONFIG_SCHED_TICKLESS),y)
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CHIP_CSRCS += sam_tickless.c
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endif
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endif
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ifeq ($(CONFIG_SAMV7_HSMCI),y)
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CHIP_CSRCS += sam_hsmci.c sam_hsmci_clkdiv.c
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endif
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File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,366 @@
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/****************************************************************************
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* arch/arm/src/samv7/sam_tc.h
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*
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* Copyright (C) 2015 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __ARCH_ARM_SRC_SAMV7_SAM_TC_H
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#define __ARCH_ARM_SRC_SAMV7_SAM_TC_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <debug.h>
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#include "chip.h"
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#include "chip/sam_tc.h"
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#if defined(CONFIG_SAMV7_TC0) || defined(CONFIG_SAMV7_TC1) || \
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defined(CONFIG_SAMV7_TC2) || defined(CONFIG_SAMV7_TC3)
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* The timer/counter and channel arguments to sam_tc_allocate() */
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#define TC_CHAN0 0 /* TC0 */
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#define TC_CHAN1 1
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#define TC_CHAN2 2
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#define TC_CHAN3 3 /* TC1 */
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#define TC_CHAN4 4
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#define TC_CHAN5 5
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#define TC_CHAN6 6 /* TC2 */
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#define TC_CHAN7 7
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#define TC_CHAN8 8
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/* Register identifier used with sam_tc_setregister */
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#define TC_REGA 0
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#define TC_REGB 1
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#define TC_REGC 2
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/* Timer debug is enabled if any timer client is enabled */
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#ifndef CONFIG_DEBUG
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# undef CONFIG_DEBUG_ANALOG
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# undef CONFIG_SAMV7_TC_REGDEBUG
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#endif
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#if !defined(CONFIG_SAMV7_TC_DEBUG) && defined(CONFIG_SAMV7_ADC) && defined(CONFIG_DEBUG_ANALOG)
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# define CONFIG_SAMV7_TC_DEBUG 1
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#endif
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/* Timer/counter debug output */
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#ifdef CONFIG_SAMV7_TC_DEBUG
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# define tcdbg dbg
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# define tcvdbg vdbg
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# define tclldbg lldbg
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# define tcllvdbg llvdbg
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#else
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# define tcdbg(x...)
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# define tcvdbg(x...)
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# define tclldbg(x...)
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# define tcllvdbg(x...)
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#endif
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/* An opaque handle used to represent a timer channel */
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typedef void *TC_HANDLE;
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/* Timer interrupt callback. When a timer interrupt expires, the client will
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* receive:
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*
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* tch - The handle that represents the timer state
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* arg - An opaque argument provided when the interrupt was registered
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* sr - The value of the timer interrupt status register at the time
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* that the interrupt occurred.
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*/
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typedef void (*tc_handler_t)(TC_HANDLE tch, void *arg, uint32_t sr);
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Name: sam_tc_allocate
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*
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* Description:
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* Configures a Timer Counter to operate in the given mode. The timer is
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* stopped after configuration and must be restarted with sam_tc_start().
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* All the interrupts of the timer are also disabled.
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*
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* Input Parameters:
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* channel TC channel number (see TC_CHANx definitions)
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* mode Operating mode (TC_CMR value).
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*
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* Returned Value:
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* On success, a non-NULL handle value is returned. This handle may be
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* used with subsequent timer/counter interfaces to manage the timer. A
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* NULL handle value is returned on a failure.
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*
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****************************************************************************/
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TC_HANDLE sam_tc_allocate(int channel, int mode);
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/****************************************************************************
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* Name: sam_tc_free
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*
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* Description:
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* Release the handle previously allocated by sam_tc_allocate().
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*
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* Input Parameters:
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* handle Channel handle previously allocated by sam_tc_allocate()
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*
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* Returned Value:
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* None
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*
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****************************************************************************/
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void sam_tc_free(TC_HANDLE handle);
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/****************************************************************************
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* Name: sam_tc_start
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*
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* Description:
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* Reset and Start the TC Channel. Enables the timer clock and performs a
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* software reset to start the counting.
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*
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* Input Parameters:
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* handle Channel handle previously allocated by sam_tc_allocate()
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*
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* Returned Value:
|
||||
*
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****************************************************************************/
|
||||
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void sam_tc_start(TC_HANDLE handle);
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/****************************************************************************
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* Name: sam_tc_stop
|
||||
*
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||||
* Description:
|
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* Stop TC Channel. Disables the timer clock, stopping the counting.
|
||||
*
|
||||
* Input Parameters:
|
||||
* handle Channel handle previously allocated by sam_tc_allocate()
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||||
*
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||||
* Returned Value:
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||||
*
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||||
****************************************************************************/
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||||
|
||||
void sam_tc_stop(TC_HANDLE handle);
|
||||
|
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/****************************************************************************
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||||
* Name: sam_tc_attach/sam_tc_detach
|
||||
*
|
||||
* Description:
|
||||
* Attach or detach an interrupt handler to the timer interrupt. The
|
||||
* interrupt is detached if the handler argument is NULL.
|
||||
*
|
||||
* Input Parameters:
|
||||
* handle The handle that represents the timer state
|
||||
* handler The interrupt handler that will be invoked when the interrupt
|
||||
* condition occurs
|
||||
* arg An opaque argument that will be provided when the interrupt
|
||||
* handler callback is executed. Ignored if handler is NULL.
|
||||
* mask The value of the timer interrupt mask register that defines
|
||||
* which interrupts should be disabled. Ignored if handler is
|
||||
* NULL.
|
||||
*
|
||||
* Returned Value:
|
||||
* The address of the previous handler, if any.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
tc_handler_t sam_tc_attach(TC_HANDLE handle, tc_handler_t handler,
|
||||
void *arg, uint32_t mask);
|
||||
|
||||
#define sam_tc_detach(h) sam_tc_attach(h, NULL, NULL, 0)
|
||||
|
||||
/****************************************************************************
|
||||
* Name: sam_tc_getpending
|
||||
*
|
||||
* Description:
|
||||
* Return the current contents of the interrutp status register, clearing
|
||||
* all pending interrupts.
|
||||
*
|
||||
* Input Parameters:
|
||||
* handle The handle that represents the timer state
|
||||
*
|
||||
* Returned Value:
|
||||
* The value of the channel interrupt status register.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
uint32_t sam_tc_getpending(TC_HANDLE handle);
|
||||
|
||||
/****************************************************************************
|
||||
* Name: sam_tc_setregister
|
||||
*
|
||||
* Description:
|
||||
* Set TC_REGA, TC_REGB, or TC_REGC register.
|
||||
*
|
||||
* Input Parameters:
|
||||
* handle Channel handle previously allocated by sam_tc_allocate()
|
||||
* regid One of {TC_REGA, TC_REGB, or TC_REGC}
|
||||
* regval Then value to set in the register
|
||||
*
|
||||
* Returned Value:
|
||||
* None
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void sam_tc_setregister(TC_HANDLE handle, int regid, uint32_t regval);
|
||||
|
||||
/****************************************************************************
|
||||
* Name: sam_tc_getregister
|
||||
*
|
||||
* Description:
|
||||
* Get the current value of the TC_REGA, TC_REGB, or TC_REGC register.
|
||||
*
|
||||
* Input Parameters:
|
||||
* handle Channel handle previously allocated by sam_tc_allocate()
|
||||
* regid One of {TC_REGA, TC_REGB, or TC_REGC}
|
||||
*
|
||||
* Returned Value:
|
||||
* The value of the specified register.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
uint32_t sam_tc_getregister(TC_HANDLE handle, int regid);
|
||||
|
||||
/****************************************************************************
|
||||
* Name: sam_tc_getcounter
|
||||
*
|
||||
* Description:
|
||||
* Return the current value of the timer counter register
|
||||
*
|
||||
* Input Parameters:
|
||||
* handle Channel handle previously allocated by sam_tc_allocate()
|
||||
*
|
||||
* Returned Value:
|
||||
* The current value of the timer counter register for this channel.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
uint32_t sam_tc_getcounter(TC_HANDLE handle);
|
||||
|
||||
/****************************************************************************
|
||||
* Name: sam_tc_infreq
|
||||
*
|
||||
* Description:
|
||||
* Return the timer input frequency, that is, the MCK frequency divided
|
||||
* down so that the timer/counter is driven within its maximum frequency.
|
||||
*
|
||||
* Input Parameters:
|
||||
* None
|
||||
*
|
||||
* Returned Value:
|
||||
* The timer input frequency.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
uint32_t sam_tc_infreq(void);
|
||||
|
||||
/****************************************************************************
|
||||
* Name: sam_tc_divfreq
|
||||
*
|
||||
* Description:
|
||||
* Return the divided timer input frequency that is currently driving the
|
||||
* the timer counter.
|
||||
*
|
||||
* Input Parameters:
|
||||
* handle Channel handle previously allocated by sam_tc_allocate()
|
||||
*
|
||||
* Returned Value:
|
||||
* The timer counter frequency.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
uint32_t sam_tc_divfreq(TC_HANDLE handle);
|
||||
|
||||
/****************************************************************************
|
||||
* Name: sam_tc_divisor
|
||||
*
|
||||
* Description:
|
||||
* Finds the best MCK divisor given the timer frequency and MCK. The
|
||||
* result is guaranteed to satisfy the following equation:
|
||||
*
|
||||
* (Ftcin / (div * 65536)) <= freq <= (Ftcin / div)
|
||||
*
|
||||
* where:
|
||||
* freq - the desired frequency
|
||||
* Ftcin - The timer/counter input frequency
|
||||
* div - With DIV being the highest possible value.
|
||||
*
|
||||
* Input Parameters:
|
||||
* frequency Desired timer frequency.
|
||||
* div Divisor value.
|
||||
* tcclks TCCLKS field value for divisor.
|
||||
*
|
||||
* Returned Value:
|
||||
* Zero (OK) if a proper divisor has been found, otherwise a negated errno
|
||||
* value indicating the nature of the failure.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
int sam_tc_divisor(uint32_t frequency, uint32_t *div, uint32_t *tcclks);
|
||||
|
||||
#undef EXTERN
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* CONFIG_SAMV7_TC0 || CONFIG_SAMV7_TC1 || CONFIG_SAMV7_TC2 || CONFIG_SAMV7_TC3 */
|
||||
#endif /* __ARCH_ARM_SRC_SAMV7_SAM_TC_H */
|
||||
Reference in New Issue
Block a user