{Bp-13658} char driver CAN: add tx_confirm ability in upperCAN driver.

Documentation/platforms/arm/samv7/boards/same70-xplained/README.txt

@@ -695,7 +695,8 @@ MCAN1 Loopback Test
 
     Device Drivers -> CAN Driver support
        CONFIG_CAN=y                            # Enable the upper-half CAN driver
-       CONFIG_CAN_FIFOSIZE=8
+       CONFIG_CAN_TXFIFOSIZE=8
+       CONFIG_CAN_RXFIFOSIZE=8
        CONFIG_CAN_NPENDINGRTR=4
 
     System Type -> SAMV7 Peripheral Selections

Documentation/platforms/arm/samv7/boards/samv71-xult/README.txt

@@ -1288,7 +1288,8 @@ MCAN1 Loopback Test
 
     Device Drivers -> CAN Driver support
        CONFIG_CAN=y                            # Enable the upper-half CAN driver
-       CONFIG_CAN_FIFOSIZE=8
+       CONFIG_CAN_TXFIFOSIZE=8
+       CONFIG_CAN_RXFIFOSIZE=8
        CONFIG_CAN_NPENDINGRTR=4
 
     System Type -> SAMV7 Peripheral Selections

Documentation/platforms/arm/stm32f1/boards/cloudctrl/index.rst

@@ -385,7 +385,11 @@ Cloudctrl-specific Configuration Options
 
    CONFIG_CAN - Enables CAN support (one or both of CONFIG_STM32_CAN1 or
    CONFIG_STM32_CAN2 must also be defined)
-   CONFIG_CAN_FIFOSIZE - The size of the circular buffer of CAN messages.
+   CONFIG_CAN_TXFIFOSIZE - The size of the circular tx buffer
+   of CAN messages.
+   Default: 8
+   CONFIG_CAN_RXFIFOSIZE - The size of the circular rx buffer
+   of CAN messages.
    Default: 8
    CONFIG_CAN_NPENDINGRTR - The size of the list of pending RTR requests.
    Default: 4

Documentation/platforms/arm/stm32f1/boards/fire-stm32v2/index.rst

@@ -501,7 +501,11 @@ M3 Wildfire-specific Configuration Options
    CONFIG_STM32_CAN2 must also be defined)
    CONFIG_CAN_EXTID - Enables support for the 29-bit extended ID.  Default
    Standard 11-bit IDs.
-   CONFIG_CAN_FIFOSIZE - The size of the circular buffer of CAN messages.
+   CONFIG_CAN_TXFIFOSIZE - The size of the circular tx buffer
+   of CAN messages.
+   Default: 8
+   CONFIG_CAN_RXFIFOSIZE - The size of the circular rx buffer
+   of CAN messages.
    Default: 8
    CONFIG_CAN_NPENDINGRTR - The size of the list of pending RTR requests.
    Default: 4

Documentation/platforms/arm/stm32f1/boards/hymini-stm32/index.rst

@@ -282,7 +282,11 @@ HY-Mini specific Configuration Options
          CONFIG_STM32_CAN2 must also be defined)
        CONFIG_CAN_EXTID - Enables support for the 29-bit extended ID.  Default
          Standard 11-bit IDs.
-       CONFIG_CAN_FIFOSIZE - The size of the circular buffer of CAN messages.
+       CONFIG_CAN_TXFIFOSIZE - The size of the circular tx buffer
+         of CAN messages.
+         Default: 8
+       CONFIG_CAN_RXFIFOSIZE - The size of the circular rx buffer
+         of CAN messages.
          Default: 8
        CONFIG_CAN_NPENDINGRTR - The size of the list of pending RTR requests.
          Default: 4

Documentation/platforms/arm/stm32f1/boards/shenzhou/index.rst

@@ -395,7 +395,11 @@ Shenzhou-specific Configuration Options
 
    CONFIG_CAN - Enables CAN support (one or both of CONFIG_STM32_CAN1 or
    CONFIG_STM32_CAN2 must also be defined)
-   CONFIG_CAN_FIFOSIZE - The size of the circular buffer of CAN messages.
+   CONFIG_CAN_TXFIFOSIZE - The size of the circular tx buffer
+   of CAN messages.
+   Default: 8
+   CONFIG_CAN_RXFIFOSIZE - The size of the circular rx buffer
+   of CAN messages.
    Default: 8
    CONFIG_CAN_NPENDINGRTR - The size of the list of pending RTR requests.
    Default: 4

Documentation/platforms/arm/stm32f1/boards/stm3210e-eval/index.rst

@@ -444,7 +444,11 @@ STM3210E-EVAL-specific Configuration Options
    CONFIG_STM32_CAN2 must also be defined)
    CONFIG_CAN_EXTID - Enables support for the 29-bit extended ID.  Default
    Standard 11-bit IDs.
-   CONFIG_CAN_FIFOSIZE - The size of the circular buffer of CAN messages.
+   CONFIG_CAN_TXFIFOSIZE - The size of the circular tx buffer
+   of CAN messages.
+   Default: 8
+   CONFIG_CAN_RXFIFOSIZE - The size of the circular rx buffer
+   of CAN messages.
    Default: 8
    CONFIG_CAN_NPENDINGRTR - The size of the list of pending RTR requests.
    Default: 4

Documentation/platforms/arm/stm32f1/boards/stm32_tiny/index.rst

@@ -231,7 +231,11 @@ STM32 Tiny - specific Configuration Options
          CONFIG_STM32_CAN2 must also be defined)
        CONFIG_CAN_EXTID - Enables support for the 29-bit extended ID.  Default
          Standard 11-bit IDs.
-       CONFIG_CAN_FIFOSIZE - The size of the circular buffer of CAN messages.
+       CONFIG_CAN_TXFIFOSIZE - The size of the circular tx buffer
+         of CAN messages.
+         Default: 8
+       CONFIG_CAN_RXFIFOSIZE - The size of the circular rx buffer
+         of CAN messages.
          Default: 8
        CONFIG_CAN_NPENDINGRTR - The size of the list of pending RTR requests.
          Default: 4

Documentation/platforms/arm/stm32f1/boards/stm32f103-minimum/index.rst

@@ -740,7 +740,11 @@ STM32F103 Minimum - specific Configuration Options
             CONFIG_STM32_CAN2 must also be defined)
           CONFIG_CAN_EXTID - Enables support for the 29-bit extended ID.  Default
             Standard 11-bit IDs.
-          CONFIG_CAN_FIFOSIZE - The size of the circular buffer of CAN messages.
+          CONFIG_CAN_TXFIFOSIZE - The size of the circular tx buffer
+            of CAN messages.
+            Default: 8
+          CONFIG_CAN_RXFIFOSIZE - The size of the circular rx buffer
+            of CAN messages.
             Default: 8
           CONFIG_CAN_NPENDINGRTR - The size of the list of pending RTR requests.
             Default: 4

Documentation/platforms/arm/stm32f2/index.rst

@@ -93,7 +93,12 @@ CAN
 - CONFIG_CAN_EXTID - Enables support for the 29-bit extended ID.
   Default Standard 11-bit IDs.
 
-- CONFIG_CAN_FIFOSIZE - The size of the circular buffer of CAN messages.
+- CONFIG_CAN_TXFIFOSIZE - The size of the circular tx buffer
+  of CAN messages.
+  Default: 8
+
+- CONFIG_CAN_RXFIFOSIZE - The size of the circular rx buffer
+  of CAN messages.
   Default: 8
 
 - CONFIG_CAN_NPENDINGRTR - The size of the list of pending RTR requests.

Documentation/platforms/arm/stm32f3/index.rst

@@ -140,7 +140,12 @@ CAN character device
 - CONFIG_CAN_EXTID - Enables support for the 29-bit extended ID.  Default
   Standard 11-bit IDs.
 
-- CONFIG_CAN_FIFOSIZE - The size of the circular buffer of CAN messages.
+- CONFIG_CAN_TXFIFOSIZE - The size of the circular tx buffer
+  of CAN messages.
+  Default: 8
+
+- CONFIG_CAN_RXFIFOSIZE - The size of the circular rx buffer
+  of CAN messages.
   Default: 8
 
 - CONFIG_CAN_NPENDINGRTR - The size of the list of pending RTR requests.

Documentation/platforms/arm/stm32f4/index.rst

@@ -144,7 +144,12 @@ CAN
 - CONFIG_CAN_EXTID - Enables support for the 29-bit extended ID.  Default
   Standard 11-bit IDs.
 
-- CONFIG_CAN_FIFOSIZE - The size of the circular buffer of CAN messages.
+- CONFIG_CAN_TXFIFOSIZE - The size of the circular tx buffer
+  of CAN messages.
+  Default: 8
+
+- CONFIG_CAN_RXFIFOSIZE - The size of the circular rx buffer
+  of CAN messages.
   Default: 8
 
 - CONFIG_CAN_NPENDINGRTR - The size of the list of pending RTR requests.

Documentation/platforms/arm/stm32f7/index.rst

@@ -189,7 +189,13 @@ CAN
 
 - CONFIG_CAN_EXTID - Enables support for the 29-bit extended ID.  Default Standard 11-bit IDs.
 
-- CONFIG_CAN_FIFOSIZE - The size of the circular buffer of CAN messages.  Default: 8
+- CONFIG_CAN_TXFIFOSIZE - The size of the circular tx buffer
+  of CAN messages.
+  Default: 8
+
+- CONFIG_CAN_RXFIFOSIZE - The size of the circular rx buffer
+  of CAN messages.
+  Default: 8
 
 - CONFIG_CAN_NPENDINGRTR - The size of the list of pending RTR requests.  Default: 4
 

arch/arm/src/at32/at32_can.c

@@ -1586,7 +1586,7 @@ static int at32can_rxinterrupt(struct can_dev_s *dev, int rxmb)
 #ifdef CONFIG_CAN_ERRORS
   hdr.ch_error  = 0; /* Error reporting not supported */
 #endif
-  hdr.ch_unused = 0;
+  hdr.ch_tcf    = 0;
 
   /* Extract the RTR bit */
 
@@ -1895,7 +1895,7 @@ static int at32can_sceinterrupt(int irq, void *context, void *arg)
 #ifdef CONFIG_CAN_EXTID
       hdr.ch_extid  = 0;
 #endif
-      hdr.ch_unused = 0;
+      hdr.ch_tcf    = 0;
 
       /* And provide the error report to the upper half logic */
 

arch/arm/src/lpc17xx_40xx/lpc17_40_can.c

@@ -1356,7 +1356,7 @@ static void can_interrupt(struct lpc17_40_can_s *dev)
 #ifdef CONFIG_CAN_EXTID
       hdr.ch_extid  = ((rfs & CAN_RFS_FF) != 0);
 #else
-      hdr.ch_unused = 0;
+      hdr.ch_tcf    = 0;
 
       if ((rfs & CAN_RFS_FF) != 0)
         {

arch/arm/src/sama5/sam_can.c

@@ -1318,7 +1318,7 @@ static inline void can_rxinterrupt(struct can_dev_s *dev, int mbndx,
 #ifdef CONFIG_CAN_ERRORS
   hdr.ch_error  = 0; /* Error reporting not supported */
 #endif
-  hdr.ch_unused = 0;
+  hdr.ch_tcf    = 0;
 
   /* And provide the CAN message to the upper half logic */
 

arch/arm/src/sama5/sam_mcan.c

@@ -3459,14 +3459,14 @@ static void mcan_error(struct can_dev_s *dev, uint32_t status)
     {
       /* Format the CAN header for the error report. */
 
-      hdr.ch_id     = errbits;
-      hdr.ch_dlc    = CAN_ERROR_DLC;
-      hdr.ch_rtr    = 0;
-      hdr.ch_error  = 1;
+      hdr.ch_id    = errbits;
+      hdr.ch_dlc   = CAN_ERROR_DLC;
+      hdr.ch_rtr   = 0;
+      hdr.ch_error = 1;
 #ifdef CONFIG_CAN_EXTID
-      hdr.ch_extid  = 0;
+      hdr.ch_extid = 0;
 #endif
-      hdr.ch_unused = 0;
+      hdr.ch_tcf   = 0;
 
       /* And provide the error report to the upper half logic */
 
@@ -3628,7 +3628,7 @@ static void mcan_receive(struct can_dev_s *dev, uint32_t *rxbuffer,
 #ifdef CONFIG_CAN_ERRORS
   hdr.ch_error  = 0;
 #endif
-  hdr.ch_unused = 0;
+  hdr.ch_tcf    = 0;
 
   if ((regval & BUFFER_R0_RTR) != 0)
     {

arch/arm/src/samv7/sam_mcan.c

@@ -3483,7 +3483,7 @@ static void mcan_error(struct can_dev_s *dev, uint32_t status)
 #ifdef CONFIG_CAN_EXTID
       hdr.ch_extid  = 0;
 #endif
-      hdr.ch_unused = 0;
+      hdr.ch_tcf    = 0;
 
       /* And provide the error report to the upper half logic */
 
@@ -3535,9 +3535,9 @@ static void mcan_receive(struct can_dev_s *dev, uint32_t *rxbuffer,
   reginfo("R0: %08" PRIx32 "\n", regval);
 
 #ifdef CONFIG_CAN_ERRORS
-  hdr.ch_error  = 0;
+  hdr.ch_error = 0;
 #endif
-  hdr.ch_unused = 0;
+  hdr.ch_tcf   = 0;
 
   if ((regval & BUFFER_R0_RTR) != 0)
     {

arch/arm/src/stm32/stm32_can.c

@@ -1581,7 +1581,7 @@ static int stm32can_rxinterrupt(struct can_dev_s *dev, int rxmb)
 #ifdef CONFIG_CAN_ERRORS
   hdr.ch_error  = 0; /* Error reporting not supported */
 #endif
-  hdr.ch_unused = 0;
+  hdr.ch_tcf    = 0;
 
   /* Extract the RTR bit */
 
@@ -1890,7 +1890,7 @@ static int stm32can_sceinterrupt(int irq, void *context, void *arg)
 #ifdef CONFIG_CAN_EXTID
       hdr.ch_extid  = 0;
 #endif
-      hdr.ch_unused = 0;
+      hdr.ch_tcf    = 0;
 
       /* And provide the error report to the upper half logic */
 

arch/arm/src/stm32/stm32_fdcan.c

@@ -2801,7 +2801,7 @@ static void fdcan_error(struct can_dev_s *dev, uint32_t status)
 #ifdef CONFIG_CAN_EXTID
       hdr.ch_extid  = 0;
 #endif
-      hdr.ch_unused = 0;
+      hdr.ch_tcf    = 0;
 
       /* And provide the error report to the upper half logic */
 
@@ -2846,7 +2846,7 @@ static void fdcan_receive(struct can_dev_s *dev,
 #ifdef CONFIG_CAN_ERRORS
   hdr.ch_error  = 0;
 #endif
-  hdr.ch_unused = 0;
+  hdr.ch_tcf    = 0;
 
   /* Extract the RTR bit */
 

arch/arm/src/stm32f7/stm32_can.c

@@ -1518,7 +1518,7 @@ static int stm32can_rxinterrupt(struct can_dev_s *dev, int rxmb)
 #ifdef CONFIG_CAN_ERRORS
   hdr.ch_error  = 0; /* Error reporting not supported */
 #endif
-  hdr.ch_unused = 0;
+  hdr.ch_tcf    = 0;
 
   /* Extract the RTR bit */
 

arch/arm/src/stm32l4/stm32l4_can.c

@@ -1445,7 +1445,7 @@ static int stm32l4can_rxinterrupt(int irq, void *context, int rxmb)
 #ifdef CONFIG_CAN_ERRORS
   hdr.ch_error  = 0; /* Error reporting not supported */
 #endif
-  hdr.ch_unused = 0;
+  hdr.ch_tcf    = 0;
 
   /* Extract the RTR bit */
 

drivers/can/Kconfig

@@ -39,18 +39,37 @@ config CAN_FD
 	---help---
 		Enables support for the CAN_FD mode.
 
-config CAN_FIFOSIZE
-	int "CAN driver I/O buffer size"
+config CAN_TXFIFOSIZE
+	int "CAN driver I/O tx buffer size"
 	default 8
+	range 1 255
 	---help---
-		The size of the circular buffer of CAN messages. Default: 8
+		The size of the circular tx buffer of CAN messages. Default: 8
+
+config CAN_RXFIFOSIZE
+	int "CAN driver I/O rx buffer size"
+	default 8
+	range 1 255
+	---help---
+		The size of the circular rx buffer of CAN messages. Default: 8
 
 config CAN_NPENDINGRTR
 	int "Number of pending RTRs"
 	default 4
 	---help---
 		The size of the list of pending RTR requests. Default: 4
 
+config CAN_TXCONFIRM
+        bool "can txconfirm ability"
+        default n
+        ---help---
+                this section enables the can txconfirm ability.
+
+                Enabling this feature adds support for the can txconfirm
+                ability, the ability is used from CAN interrupt handler
+                when the transfer is complete, the ability will notify all
+                readers that the canid has been transferred.
+
 config CAN_TXREADY
 	bool "can_txready interface"
 	default n