diff options
Diffstat (limited to 'dediprog.c')
| -rw-r--r-- | dediprog.c | 36 |
1 files changed, 20 insertions, 16 deletions
@@ -24,19 +24,21 @@ #include "spi.h" #define DEFAULT_TIMEOUT 3000 -usb_dev_handle *dediprog_handle; +static usb_dev_handle *dediprog_handle; -int dediprog_do_stuff(void); - -void print_hex(void *buf, size_t len) +#if 0 +/* Might be useful for other pieces of code as well. */ +static void print_hex(void *buf, size_t len) { size_t i; for (i = 0; i < len; i++) msg_pdbg(" %02x", ((uint8_t *)buf)[i]); } +#endif -struct usb_device *get_device_by_vid_pid(uint16_t vid, uint16_t pid) +/* Might be useful for other USB devices as well. static for now. */ +static struct usb_device *get_device_by_vid_pid(uint16_t vid, uint16_t pid) { struct usb_bus *bus; struct usb_device *dev; @@ -52,7 +54,7 @@ struct usb_device *get_device_by_vid_pid(uint16_t vid, uint16_t pid) //int usb_control_msg(usb_dev_handle *dev, int requesttype, int request, int value, int index, char *bytes, int size, int timeout); -int dediprog_set_spi_voltage(uint16_t voltage) +static int dediprog_set_spi_voltage(uint16_t voltage) { int ret; unsigned int mv; @@ -85,6 +87,7 @@ int dediprog_set_spi_voltage(uint16_t voltage) return 0; } +#if 0 /* After dediprog_set_spi_speed, the original app always calls * dediprog_set_spi_voltage(0) and then * dediprog_check_devicestring() four times in a row. @@ -92,7 +95,7 @@ int dediprog_set_spi_voltage(uint16_t voltage) * This looks suspiciously like the microprocessor in the SF100 has to be * restarted/reinitialized in case the speed changes. */ -int dediprog_set_spi_speed(uint16_t speed) +static int dediprog_set_spi_speed(uint16_t speed) { int ret; unsigned int khz; @@ -140,6 +143,7 @@ int dediprog_set_spi_speed(uint16_t speed) } return 0; } +#endif int dediprog_spi_read(struct flashchip *flash, uint8_t *buf, int start, int len) { @@ -183,7 +187,7 @@ int dediprog_spi_send_command(unsigned int writecnt, unsigned int readcnt, return 0; } -int dediprog_check_devicestring(void) +static int dediprog_check_devicestring(void) { int ret; char buf[0x11]; @@ -223,7 +227,7 @@ int dediprog_check_devicestring(void) * dediprog_check_devicestring (often) or Command A (often) or * Command F (once). */ -int dediprog_command_a(void) +static int dediprog_command_a(void) { int ret; char buf[0x1]; @@ -242,7 +246,7 @@ int dediprog_command_a(void) * dediprog_command_a(); dediprog_check_devicestring() sequence in each session. * I'm tempted to call this one start_SPI_engine or finish_init. */ -int dediprog_command_c(void) +static int dediprog_command_c(void) { int ret; @@ -254,11 +258,12 @@ int dediprog_command_c(void) return 0; } +#if 0 /* Very strange. Seems to be a programmer keepalive or somesuch. * Wait unsuccessfully for timeout ms to read one byte. * Is usually called after setting voltage to 0. */ -int dediprog_command_f(int timeout) +static int dediprog_command_f(int timeout) { int ret; char buf[0x1]; @@ -271,6 +276,7 @@ int dediprog_command_f(int timeout) } return 0; } +#endif /* URB numbers refer to the first log ever captured. */ int dediprog_init(void) @@ -323,10 +329,11 @@ int dediprog_init(void) return 0; } +#if 0 /* Leftovers from reverse engineering. Keep for documentation purposes until * completely understood. */ -int dediprog_do_stuff(void) +static int dediprog_do_stuff(void) { char buf[0x4]; /* SPI command processing starts here. */ @@ -341,7 +348,6 @@ int dediprog_do_stuff(void) return 1; msg_pdbg("Receiving response: "); print_hex(buf, JEDEC_RDID_INSIZE); -#if 0 /* URB 14-27 are more SPI commands. */ /* URB 28. Command Set SPI Voltage. */ if (dediprog_set_spi_voltage(0x0)) @@ -369,12 +375,10 @@ int dediprog_do_stuff(void) /* Command I is probably Start Bulk Read. Data is u16 blockcount, u16 blocksize. */ /* Command J is probably Start Bulk Write. Data is u16 blockcount, u16 blocksize. */ /* Bulk transfer sizes for Command I/J are always 512 bytes, rest is filled with 0xff. */ -#endif - msg_pinfo("All probes will fail because this driver is not hooked up " - "to the SPI infrastructure yet."); return 0; } +#endif int dediprog_shutdown(void) { |
