hello:
we modify dts for gc2145
aml_cams {
compatible = "amlogic, cams_prober";
status = "okay";
pinctrl-names="default";
pinctrl-0=<&gen_clk_ee_ao>;
clocks = <&clkc CLKID_GEN_CLK>;
clock-names = "g12a_24m";
cam_0{
cam_name = "gc2145_mipi";
front_back = <0>;
camera-i2c-bus = <&i2c_AO>;
gpio_pwdn-gpios = <&gpio_expander 3 GPIO_ACTIVE_HIGH>;
gpio_rst-gpios = <&gpio_expander 2 GPIO_ACTIVE_HIGH>;
mirror_flip = <1>;
vertical_flip = <1>;
spread_spectrum = <0>;
bt_path = "csi";
interface = "mipi";
clk_channel = "a";
bt_path_count = <1>;
status = "okay";
};
};
and config kernel "gc2145-mipi "module enable
now kernel log show as follow
[ 5.200395] gc2145_mipi: failed to map gpio_cam_vdd !
[ 5.205610] camera dev gc2145_mipi found
[ 5.209666] camera i2c addr: 0x3c
[ 5.213129] bt_path :0
[ 5.215642] camer pwdn_act: 0x1
[ 5.218935] camer addr: 0x3c
[ 5.221978] camer i2c bus: 0
[ 5.371901] aml_cams: gc2145_mipi init OK
[ 5.376332] gc2145_mipi_v4l2_probe, ret = 1
[ 5.380456] aml_cams: gc2145_mipi uninit.
[ 5.439906] Success disable mclk
[ 5.444035] failed to read max_cap_size
[ 5.448176] vcm mode is 0
[ 5.452285] camera interface:mipi
[ 5.456439] clock channel:clk a
[ 5.460481] failed to read camera bayer fmt
[ 5.462429] failed to read config_file path
[ 5.466785] =======cam gc2145_mipi info=======
i2c_bus_num: 0
pwdn_act: 1
front_back: 0
m_flip: 1
v_flip: 1
i2c_addr: 0x3c
config path:(null)
bt_path:1
[ 5.502314] new i2c device
[ 5.505214] camera probe cost time = 308ms
[ 5.509402] aml probe finish
[ 5.512508] gc2145_mipi 4-003c: chip found @ 0x78 (Meson I2C adapter)
[ 5.519027] gc2145_probe, front_back = 0
[ 5.523094] t->vdev = ffffffc02680d000, video_nr = 0
[ 5.528297] gc2145_probe successful
it seems successful
but the kernel reported an error at the last stage
[ 12.836251] amlvideo2.0 cma memory release succeed
[ 13.242924] BT_RADIO going: on
[ 13.242929] AML_BT: going ON
[ 13.319820] ionvid: dbg: ionvideo open
[ 13.320115] ionvid: dbg: vidioc_close!!!!
[ 13.320133] ionvid: dbg: vidioc_close
[ 13.329366] Unable to handle kernel NULL pointer dereference at virtual address 00000018
[ 13.335323] pgd = ffffffc025ace000
[ 13.341342] [0000000000000018] *pgd=0000000000000000, *pud=0000000000000000
[ 13.347368] Internal error: Oops: 96000005 [#1] PREEMPT SMP
[ 13.350773] Modules linked in:
[ 13.353814] CPU: 2 PID: 2732 Comm: v4l_id Not tainted 4.9.241 #8
[ 13.353815] Hardware name: Khadas VIM3 (DT)
[ 13.353817] task: ffffffc0252caa00 task.stack: ffffff80202b4000
[ 13.353826] PC is at vm_init_resource+0x3c/0x108
[ 13.353830] LR is at gc2145_open+0x4c/0x308
[ 13.353831] pc : [<ffffff8009b1f3bc>] lr : [<ffffff8009b2821c>] pstate: 20000145
[ 13.353831] sp : ffffff80202b7a90
[ 13.353832] x29: ffffff80202b7a90
[ 13.353833] x28: 0000000000000000
[ 13.353834] x27: 0000000000000000
[ 13.353835] x26: ffffff80202b7d48
[ 13.353836] x25: 0000000000000000
[ 13.353836] x24: ffffffc02680cec8
[ 13.353837] x23: ffffffc024250300
[ 13.353838] x22: ffffffc02680d010
[ 13.353838] x21: 0000000000000000
[ 13.353839] x20: 0000000001800000
[ 13.353840] x19: ffffffc02680cec8
[ 13.353841] x18: 0000000073516240
[ 13.353841] x17: 0000007fab844478
[ 13.353842] x16: ffffff800923dd58
[ 13.353843] x15: 000000006fffff47
[ 13.353843] x14: 0000000000000000
the kernel version which i used is khadas-vims-4.9.y branch
and filesystem is VIM3_Ubuntu-gnome-focal_Linux-4.9_arm64_SD-USB_V0.9-20200530 (Latest release)
What should I change next?
thanks a lot
this error resulted in
v4l2_fd = open("/dev/video0", O_RDWR);
if (v4l2_fd < 0)
{
fprintf(stderr, "open = %d, errno = %d \r\n", v4l2_fd, errno);
return -1;
}
struct v4l2_capability cap;
if (xioctl(v4l2_fd, VIDIOC_QUERYCAP, &cap) == -1)
{
printf("Error opening device : unable to query device.\r\n");
return -1;
}
root@Khadas:/home/khadas/camera_test# ./oritest
[ 5657.249827@4] Unable to handle kernel NULL pointer dereference at virtual address 00000018
[ 5657.252453@4] pgd = ffffffc024d7d000
[ 5657.256044@4] [0000000000000018] *pgd=0000000000000000, *pud=0000000000000000
[ 5657.263101@4] Internal error: Oops: 96000005 [#3] PREEMPT SMP
[ 5657.268819@4] Modules linked in:
[ 5657.272026@4] CPU: 4 PID: 66409 Comm: oritest Tainted: G D 4.9.241 #8
[ 5657.279564@4] Hardware name: Khadas VIM3 (DT)
[ 5657.283898@4] task: ffffffc01673d400 task.stack: ffffff8020058000
[ 5657.289969@4] PC is at vm_init_resource+0x3c/0x108
[ 5657.294733@4] LR is at gc2145_open+0x4c/0x308
[ 5657.299064@4] pc : [<ffffff8009b1f3bc>] lr : [<ffffff8009b2821c>] pstate: 20000145
[ 5657.306604@4] sp : ffffff802005ba90
[ 5657.310071@4] x29: ffffff802005ba90 x28: 0000000000000000
[ 5657.315530@4] x27: 0000000000000000 x26: ffffff802005bd48
[ 5657.320990@4] x25: 0000000000000000 x24: ffffffc02680cec8
[ 5657.326450@4] x23: ffffffc02412e100 x22: ffffffc02680d010
[ 5657.331910@4] x21: 0000000000000000 x20: 0000000001800000
[ 5657.337371@4] x19: ffffffc02680cec8 x18: 0000000073516240
[ 5657.342830@4] x17: 0000007f8e4fa478 x16: ffffff800923dd58
[ 5657.348290@4] x15: 000000006fffff47 x14: 0000000000000000
[ 5657.353750@4] x13: 0000000000000000 x12: 000000000000f940
[ 5657.359210@4] x11: 0000000000000004 x10: d0d0e0bfb5b4b9a6
[ 5657.364670@4] x9 : 0000000000000000 x8 : ffffffc027408480
[ 5657.370130@4] x7 : 0000000000003ff0 x6 : 0000000000000000
[ 5657.375590@4] x5 : 0000000000000003 x4 : 0000000000000003
[ 5657.381050@4] x3 : ffffffc0272ed638 x2 : 0000000000000000
[ 5657.386510@4] x1 : 0000000000000000 x0 : ffffff800ad82d10
The problem occurs between the point 2 and point 3…
static int gc2145_open(struct file *file)
{
struct gc2145_device *dev = video_drvdata(file);
struct gc2145_fh *fh = NULL;
int retval = 0;
pr_info("gc2145_open. point 1\n");
dev->vminfo.vdin_id = dev->cam_info.vdin_path;
dev->vminfo.bt_path_count = dev->cam_info.bt_path_count;
pr_info("gc2145_open. dev->vminfo.vdin_id %d\n",dev->vminfo.vdin_id);
pr_info("gc2145_open. dev->vminfo.bt_path_count %d\n",dev->vminfo.bt_path_count);
#ifdef CONFIG_CMA
pr_info("gc2145_open. point 2\n");
retval = vm_init_resource(16 * SZ_1M, &dev->vminfo);
if (retval < 0) {
pr_err("error: no cma memory\n");
return -1;
}
pr_info("gc2145_open. point 3\n");
#endif
emmmm
any one can help me ?
thanks a lot
numbqq
March 4, 2021, 7:26am
5
I think you use the wrong dts node. As you said, you can check our OS08A10 dts configuration.
emm
so i use it for vim3
aml_cams {
compatible = "amlogic, cams_prober";
status = "okay";
pinctrl-names="default";
pinctrl-0=<&gen_clk_ee_ao>;
clocks = <&clkc CLKID_GEN_CLK>;
clock-names = "g12a_24m";
cam_0{
cam_name = "gc2145_mipi";
front_back = <0>;
camera-i2c-bus = <&i2c_AO>;
gpio_pwdn-gpios = <&gpio_expander 3 GPIO_ACTIVE_HIGH>;
gpio_rst-gpios = <&gpio_expander 2 GPIO_ACTIVE_HIGH>;
mirror_flip = <1>;
vertical_flip = <1>;
spread_spectrum = <0>;
bt_path = "csi";
interface = "mipi";
clk_channel = "a";
bt_path_count = <1>;
status = "okay";
};
};
and gc2145 is big differences with OV08A10…
numbqq
March 4, 2021, 8:16am
7
VIM3 is different from VIM3L. VIM3 contains ISP but VIM3L not.
1 Like
@numbqq @zhaowei vm_init_resource due to cma malfunction.devp = vm_device[info->vdin_id]; in function vm_init_resource.
were you able to solve this?
