diff options
Diffstat (limited to 'recipes-kernel/sllin')
4 files changed, 287 insertions, 0 deletions
diff --git a/recipes-kernel/sllin/files/0001_update_makefile.patch b/recipes-kernel/sllin/files/0001_update_makefile.patch new file mode 100644 index 000000000..7db57802b --- /dev/null +++ b/recipes-kernel/sllin/files/0001_update_makefile.patch @@ -0,0 +1,21 @@ +diff --git a/sllin/Makefile b/sllin/Makefile +index 8ae7510..037846f 100644 +--- a/sllin/Makefile ++++ b/sllin/Makefile +@@ -1,10 +1,11 @@ + obj-m += sllin.o +-KPATH=/lib/modules/$(shell uname -r)/build ++KPATH=$(KERNEL_SRC) + #KPATH=/mnt/data/_dokumenty_/_w_/_dce_can_/src/can-benchmark/kernel/build/shark/3.0.4 + #KPATH=/mnt/data/_dokumenty_/_w_/_dce_can_/src/can-benchmark/kernel/build/shark/2.6.36 +- ++SRC := $(shell pwd) + all: +- make -C ${KPATH} M=$(PWD) modules +- ++ make -C ${KPATH} M=$(SRC) modules ++modules_install: ++ make -C ${KPATH} M=$(SRC) modules_install + clean: +- make -C ${KPATH} M=$(PWD) clean ++ make -C ${KPATH} M=$(SRC) clean diff --git a/recipes-kernel/sllin/files/0002_fix_null_operation_check.patch b/recipes-kernel/sllin/files/0002_fix_null_operation_check.patch new file mode 100644 index 000000000..896e2680d --- /dev/null +++ b/recipes-kernel/sllin/files/0002_fix_null_operation_check.patch @@ -0,0 +1,176 @@ +diff --git a/sllin/sllin.c b/sllin/sllin.c +index 2db896f..2969448 100644 +--- a/sllin/sllin.c ++++ b/sllin/sllin.c +@@ -869,7 +869,6 @@ static int sllin_send_tx_buff(struct sllin *sl) + #else + remains = sl->tx_lim - sl->tx_cnt; + #endif +- + res = tty->ops->write(tty, sl->tx_buff + sl->tx_cnt, remains); + if (res < 0) + goto error_in_write; +@@ -916,10 +915,25 @@ static int sllin_send_break(struct sllin *sl) + unsigned long break_baud; + int res; + ++ netdev_dbg(sl->dev, "%s()#<BREAK_BY_BAUD> invoke.\n", __func__); ++ if (tty == NULL) { ++ netdev_dbg(sl->dev, "%s() tty == NULL.\n", __func__); ++ sl->lin_state = SLSTATE_IDLE; ++ return -1; ++ } ++ if (tty->ops == NULL) { ++ netdev_dbg(sl->dev, "%s() tty->ops == NULL.\n", __func__); ++ sl->lin_state = SLSTATE_IDLE; ++ return -1; ++ } + break_baud = ((sl->lin_baud * 2) / 3); + sltty_change_speed(tty, break_baud); + +- tty->ops->flush_buffer(tty); ++ if (tty->ops->flush_buffer) { ++ tty->ops->flush_buffer(tty); ++ } else { ++ netdev_dbg(sl->dev, "%s() tty->ops->flush_buffer is NULL.\n", __func__); ++ } + sl->rx_cnt = SLLIN_BUFF_BREAK; + + sl->rx_expect = SLLIN_BUFF_BREAK + 1; +@@ -943,6 +957,17 @@ static int sllin_send_break(struct sllin *sl) + unsigned long usleep_range_min; + unsigned long usleep_range_max; + ++ netdev_dbg(sl->dev, "%s() invoke.\n", __func__); ++ if (tty == NULL) { ++ netdev_dbg(sl->dev, "%s() tty == NULL.\n", __func__); ++ sl->lin_state = SLSTATE_IDLE; ++ return -1; ++ } ++ if (tty->ops == NULL) { ++ netdev_dbg(sl->dev, "%s() tty->ops == NULL.\n", __func__); ++ sl->lin_state = SLSTATE_IDLE; ++ return -1; ++ } + break_baud = ((sl->lin_baud * 2) / 3); + sl->rx_cnt = SLLIN_BUFF_BREAK; + sl->rx_expect = SLLIN_BUFF_BREAK + 1; +@@ -950,21 +975,31 @@ static int sllin_send_break(struct sllin *sl) + + /* Do the break ourselves; Inspired by + http://lxr.linux.no/#linux+v3.1.2/drivers/tty/tty_io.c#L2452 */ +- retval = tty->ops->break_ctl(tty, -1); +- if (retval) +- return retval; ++ if (tty->ops->break_ctl) { ++ retval = tty->ops->break_ctl(tty, -1); ++ if (retval) ++ return retval; ++ } else { ++ netdev_dbg(sl->dev, "%s() tty->ops->break_ctl is NULL.\n", __func__); ++ } + + /* udelay(712); */ + usleep_range_min = (1000000l * SLLIN_SAMPLES_PER_CHAR) / break_baud; + usleep_range_max = usleep_range_min + 50; + usleep_range(usleep_range_min, usleep_range_max); + +- retval = tty->ops->break_ctl(tty, 0); ++ if(tty->ops->break_ctl) { ++ retval = tty->ops->break_ctl(tty, 0); ++ } + usleep_range_min = (1000000l * 1 /* 1 bit */) / break_baud; + usleep_range_max = usleep_range_min + 30; + usleep_range(usleep_range_min, usleep_range_max); + +- tty->ops->flush_buffer(tty); ++ if ( tty->ops->flush_buffer) { ++ tty->ops->flush_buffer(tty); ++ } else { ++ netdev_dbg(sl->dev, "%s() tty->ops->flush_buffer is NULL.\n", __func__); ++ } + + sl->tx_cnt = SLLIN_BUFF_SYNC; + +@@ -1028,6 +1063,12 @@ static int sllin_kwthread(void *ptr) + int lin_dlc; + u8 lin_data_buff[SLLIN_DATA_MAX]; + ++ if (sl == NULL) { ++ pr_err("sllin: sl is NULL\n"); ++ } ++ if (sl->dev == NULL) { ++ pr_err("sllin: sl->dev is NULL\n"); ++ } + + if ((sl->lin_state == SLSTATE_IDLE) && sl->lin_master && + sl->id_to_send) { +@@ -1036,6 +1077,7 @@ static int sllin_kwthread(void *ptr) + } + } + ++ netdev_dbg(sl->dev, "sllin_kthread <WAIT_EVENT>\n"); + wait_event_killable(sl->kwt_wq, kthread_should_stop() || + test_bit(SLF_RXEVENT, &sl->flags) || + test_bit(SLF_TXEVENT, &sl->flags) || +@@ -1046,6 +1088,7 @@ static int sllin_kwthread(void *ptr) + (sl->lin_state == SLSTATE_RESPONSE_WAIT)) + && test_bit(SLF_MSGEVENT, &sl->flags))); + ++ netdev_dbg(sl->dev, "sllin_kthread <WAKEUPED>\n"); + if (test_and_clear_bit(SLF_RXEVENT, &sl->flags)) { + netdev_dbg(sl->dev, "sllin_kthread RXEVENT\n"); + } +@@ -1078,21 +1121,25 @@ static int sllin_kwthread(void *ptr) + sl->lin_state = SLSTATE_IDLE; + } + ++ netdev_dbg(sl->dev, "sllin_kthread: lin_state <%08x>\n",sl->lin_state); + switch (sl->lin_state) { + case SLSTATE_IDLE: + if (!test_bit(SLF_MSGEVENT, &sl->flags)) + break; +- ++ if (sl->tx_req_skb == NULL) ++ netdev_dbg(sl->dev, "sl->tx_req_skb == NULL\n"); ++ if (sl->tx_req_skb->data == NULL) ++ netdev_dbg(sl->dev, "sl->tx_req_skb->data == NULL\n"); + cf = (struct can_frame *)sl->tx_req_skb->data; + + /* SFF RTR CAN frame -> LIN header */ + if (cf->can_id & CAN_RTR_FLAG) { + struct sllin_conf_entry *sce; + +- netdev_dbg(sl->dev, "%s: RTR SFF CAN frame, ID = %x\n", +- __func__, cf->can_id & LIN_ID_MASK); + + sce = &sl->linfr_cache[cf->can_id & LIN_ID_MASK]; ++ netdev_dbg(sl->dev, "%s: RTR SFF CAN frame, ID = %x dlc=%d\n", ++ __func__, cf->can_id & LIN_ID_MASK, sce->dlc); + spin_lock_irqsave(&sl->linfr_lock, flags); + + /* Is there Slave response in linfr_cache to be sent? */ +@@ -1114,8 +1161,8 @@ static int sllin_kwthread(void *ptr) + spin_unlock_irqrestore(&sl->linfr_lock, flags); + + } else { /* SFF NON-RTR CAN frame -> LIN header + LIN response */ +- netdev_dbg(sl->dev, "%s: NON-RTR SFF CAN frame, ID = %x\n", +- __func__, (int)cf->can_id & LIN_ID_MASK); ++ netdev_dbg(sl->dev, "%s: NON-RTR SFF CAN frame, ID = %x\n dlc=%d", ++ __func__, (int)cf->can_id & LIN_ID_MASK, cf->can_dlc); + + lin_data = cf->data; + lin_dlc = cf->can_dlc; +@@ -1140,6 +1187,7 @@ static int sllin_kwthread(void *ptr) + hrtimer_start(&sl->rx_timer, + ktime_add(ktime_get(), sl->rx_timer_timeout), + HRTIMER_MODE_ABS); ++ netdev_dbg(sl->dev, "sllin_kthread: SLSTATE finish\n"); + break; + + case SLSTATE_BREAK_SENT: +@@ -1654,3 +1702,4 @@ static void __exit sllin_exit(void) + + module_init(sllin_init); + module_exit(sllin_exit); ++ diff --git a/recipes-kernel/sllin/files/0003-Allow-recent-kernels-newer-4.11.x-to-build.patch b/recipes-kernel/sllin/files/0003-Allow-recent-kernels-newer-4.11.x-to-build.patch new file mode 100644 index 000000000..c8f2f9268 --- /dev/null +++ b/recipes-kernel/sllin/files/0003-Allow-recent-kernels-newer-4.11.x-to-build.patch @@ -0,0 +1,69 @@ +From fcebb8f510bbb5c681f1f9af4506b4de241837dd Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Jan-Simon=20M=C3=B6ller?= <jsmoeller@linuxfoundation.org> +Date: Wed, 31 Oct 2018 20:48:20 +0000 +Subject: [PATCH] Allow recent kernels newer 4.11.x to build +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +API changes enforce porting. + +Signed-off-by: Jan-Simon Möller <jsmoeller@linuxfoundation.org> +--- + sllin/sllin.c | 13 +++++++++++++ + 1 file changed, 13 insertions(+) + +diff --git a/sllin/sllin.c b/sllin/sllin.c +index 2969448..7e17127 100644 +--- a/sllin/sllin.c ++++ b/sllin/sllin.c +@@ -56,7 +56,12 @@ + #include <linux/rtnetlink.h> + #include <linux/if_arp.h> + #include <linux/if_ether.h> ++#include <linux/version.h> ++#if LINUX_VERSION_CODE < KERNEL_VERSION(4,11,0) + #include <linux/sched.h> ++#else ++#include <uapi/linux/sched/types.h> ++#endif + #include <linux/delay.h> + #include <linux/init.h> + #include <linux/can.h> +@@ -447,7 +451,9 @@ static int sll_open(struct net_device *dev) + static void sll_free_netdev(struct net_device *dev) + { + int i = dev->base_addr; ++#if LINUX_VERSION_CODE < KERNEL_VERSION(4,11,9) + free_netdev(dev); ++#endif + sllin_devs[i] = NULL; + } + +@@ -460,7 +466,12 @@ static const struct net_device_ops sll_netdev_ops = { + static void sll_setup(struct net_device *dev) + { + dev->netdev_ops = &sll_netdev_ops; ++#if LINUX_VERSION_CODE < KERNEL_VERSION(4,11,9) + dev->destructor = sll_free_netdev; ++#else ++ dev->needs_free_netdev = true; ++ dev->priv_destructor = sll_free_netdev; ++#endif + + dev->hard_header_len = 0; + dev->addr_len = 0; +@@ -1685,8 +1696,10 @@ static void __exit sllin_exit(void) + sl = netdev_priv(dev); + if (sl->tty) { + netdev_dbg(sl->dev, "tty discipline still running\n"); ++#if LINUX_VERSION_CODE < KERNEL_VERSION(4,11,9) + /* Intentionally leak the control block. */ + dev->destructor = NULL; ++#endif + } + + unregister_netdev(dev); +-- +2.13.7 + diff --git a/recipes-kernel/sllin/sllin.bb b/recipes-kernel/sllin/sllin.bb new file mode 100644 index 000000000..eecd43947 --- /dev/null +++ b/recipes-kernel/sllin/sllin.bb @@ -0,0 +1,21 @@ +DESCRIPTION = "slLIN driver module" +LICENSE = "GPLv2" +LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/GPL-2.0;md5=801f80980d171dd6425610833a22dbe6" + +inherit module + +DEPENDS = "virtual/kernel" + +SRC_URI = "git://github.com/trainman419/linux-lin.git;protocol=https" +SRCREV = "155d885e8ccc907a56f6c86c4b159fac27ef6fec" +S = "${WORKDIR}/git/sllin" + +PV = "0.1+git${SRCPV}" + +SRC_URI_append = " \ + file://0001_update_makefile.patch;pnum=2 \ + file://0002_fix_null_operation_check.patch;pnum=2 \ + file://0003-Allow-recent-kernels-newer-4.11.x-to-build.patch;pnum=2 \ +" + + |