Difference between revisions of "Hardware studies specific"
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(Starting article on search for Zephyr's I2C configuration code.) |
m (To identify first reference to routine i2c_configure() in Zephyr based project build artifacts.) |
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| Line 37: | Line 37: | ||
| + | - STEP - To identify first reference to routine i2c_configure() in Zephyr based project build artifacts. | ||
| + | |||
| + | An excerpt from file `ncs/project_root/build/zephyr/include/generated/syscalls/i2c.h: | ||
| + | |||
| + | <pre> | ||
| + | 24 extern int z_impl_i2c_configure(const struct device * dev, uint32_t dev_config); | ||
| + | 25 static inline int i2c_configure(const struct device * dev, uint32_t dev_config) | ||
| + | 26 { | ||
| + | 27 #ifdef CONFIG_USERSPACE | ||
| + | 28 if (z_syscall_trap()) { | ||
| + | 29 return (int) arch_syscall_invoke2(*(uintptr_t *)&dev, *(uintptr_t *)&dev_config, K_SYSCALL_I2C_CONFIGURE); | ||
| + | 30 } | ||
| + | 31 #endif | ||
| + | 32 compiler_barrier(); | ||
| + | 33 return z_impl_i2c_configure(dev, dev_config); | ||
| + | 34 } | ||
| + | </pre> | ||
<!-- comentario --> | <!-- comentario --> | ||
Revision as of 22:58, 2 May 2022
2022-05-02 Monday
Search for Zephyr's I2C peripheral configuration code . . .
ted@localhost:~/projects/zephyr-based/hardware-Stage1-firmware-aws-iot-stand-alone/build$ grep -nr i2c_configure ./* ./mcuboot/zephyr/include/generated/syscall_dispatch.c:668:uintptr_t z_mrsh_i2c_configure(uintptr_t arg1, uintptr_t arg2, uintptr_t arg3, ./mcuboot/zephyr/include/generated/syscall_dispatch.c:1412: [K_SYSCALL_I2C_CONFIGURE] = z_mrsh_i2c_configure, ./mcuboot/zephyr/include/generated/syscalls/i2c.h:24:extern int z_impl_i2c_configure(const struct device * dev, uint32_t dev_config); ./mcuboot/zephyr/include/generated/syscalls/i2c.h:25:static inline int i2c_configure(const struct device * dev, uint32_t dev_config) ./mcuboot/zephyr/include/generated/syscalls/i2c.h:33: return z_impl_i2c_configure(dev, dev_config); ./mcuboot/zephyr/include/generated/syscalls/i2c_configure_mrsh.c:10:extern int z_vrfy_i2c_configure(const struct device * dev, uint32_t dev_config); ./mcuboot/zephyr/include/generated/syscalls/i2c_configure_mrsh.c:11:uintptr_t z_mrsh_i2c_configure(uintptr_t arg0, uintptr_t arg1, uintptr_t arg2, ./mcuboot/zephyr/include/generated/syscalls/i2c_configure_mrsh.c:19: int ret = z_vrfy_i2c_configure(*(const struct device **)&arg0, *(uint32_t*)&arg1) ./mcuboot/zephyr/misc/generated/syscalls.json:1159: "int i2c_configure", ./spm/zephyr/include/generated/syscall_dispatch.c:668:uintptr_t z_mrsh_i2c_configure(uintptr_t arg1, uintptr_t arg2, uintptr_t arg3, ./spm/zephyr/include/generated/syscall_dispatch.c:1412: [K_SYSCALL_I2C_CONFIGURE] = z_mrsh_i2c_configure, ./spm/zephyr/include/generated/syscalls/i2c.h:24:extern int z_impl_i2c_configure(const struct device * dev, uint32_t dev_config); ./spm/zephyr/include/generated/syscalls/i2c.h:25:static inline int i2c_configure(const struct device * dev, uint32_t dev_config) ./spm/zephyr/include/generated/syscalls/i2c.h:33: return z_impl_i2c_configure(dev, dev_config); ./spm/zephyr/include/generated/syscalls/i2c_configure_mrsh.c:10:extern int z_vrfy_i2c_configure(const struct device * dev, uint32_t dev_config); ./spm/zephyr/include/generated/syscalls/i2c_configure_mrsh.c:11:uintptr_t z_mrsh_i2c_configure(uintptr_t arg0, uintptr_t arg1, uintptr_t arg2, ./spm/zephyr/include/generated/syscalls/i2c_configure_mrsh.c:19: int ret = z_vrfy_i2c_configure(*(const struct device **)&arg0, *(uint32_t*)&arg1) ./spm/zephyr/misc/generated/syscalls.json:1159: "int i2c_configure", ./zephyr/include/generated/syscall_dispatch.c:668:uintptr_t z_mrsh_i2c_configure(uintptr_t arg1, uintptr_t arg2, uintptr_t arg3, ./zephyr/include/generated/syscall_dispatch.c:1412: [K_SYSCALL_I2C_CONFIGURE] = z_mrsh_i2c_configure, ./zephyr/include/generated/syscalls/i2c.h:24:extern int z_impl_i2c_configure(const struct device * dev, uint32_t dev_config); ./zephyr/include/generated/syscalls/i2c.h:25:static inline int i2c_configure(const struct device * dev, uint32_t dev_config) ./zephyr/include/generated/syscalls/i2c.h:33: return z_impl_i2c_configure(dev, dev_config); ./zephyr/include/generated/syscalls/i2c_configure_mrsh.c:10:extern int z_vrfy_i2c_configure(const struct device * dev, uint32_t dev_config); ./zephyr/include/generated/syscalls/i2c_configure_mrsh.c:11:uintptr_t z_mrsh_i2c_configure(uintptr_t arg0, uintptr_t arg1, uintptr_t arg2, ./zephyr/include/generated/syscalls/i2c_configure_mrsh.c:19: int ret = z_vrfy_i2c_configure(*(const struct device **)&arg0, *(uint32_t*)&arg1) ./zephyr/misc/generated/syscalls.json:1159: "int i2c_configure", ted@vibratsiya:~/projects/zephyr-based/hardware-Stage1-firmware-aws-iot-stand-alone/build$
- STEP - To identify first reference to routine i2c_configure() in Zephyr based project build artifacts.
An excerpt from file `ncs/project_root/build/zephyr/include/generated/syscalls/i2c.h:
24 extern int z_impl_i2c_configure(const struct device * dev, uint32_t dev_config);
25 static inline int i2c_configure(const struct device * dev, uint32_t dev_config)
26 {
27 #ifdef CONFIG_USERSPACE
28 if (z_syscall_trap()) {
29 return (int) arch_syscall_invoke2(*(uintptr_t *)&dev, *(uintptr_t *)&dev_config, K_SYSCALL_I2C_CONFIGURE);
30 }
31 #endif
32 compiler_barrier();
33 return z_impl_i2c_configure(dev, dev_config);
34 }
