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ni845x_spi: pass global state through func params

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Instead of relying on global variables, pass and use their value or
pointer to functions where possible.

The usage of `io_voltage_in_mV` global var in `usb8452_spi_set_io_voltage`
function is replaced with existing function argument `set_io_voltage_mV`
since `set_io_voltage_mV` already contains the pointer to global var.

This patch prepares the programmer to move global singleton states into
a struct.

TOPIC=register_master_api

Change-Id: I5daeb0839a4cc18b82d38cc06eeba88a619bec61
Signed-off-by: Alexander Goncharov <chat@joursoir.net>
Ticket: https://ticket.coreboot.org/issues/391
Reviewed-on: https://review.coreboot.org/c/flashrom/+/72154
Reviewed-by: Anastasia Klimchuk <aklm@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Alexander Goncharov 2023-01-18 17:07:00 +04:00 committed by Anastasia Klimchuk
parent e08899fcf4
commit 51335a8eb9
1 changed files with 22 additions and 16 deletions
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38
ni845x_spi.c
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@ -135,11 +135,11 @@ static void ni845x_report_warning(const char *const func, const int32 err)
* @param opened_handle the opened handle from the ni845xOpen
* @return the 0 on successful competition, negative error code on failure positive code on warning
*/
static int32 ni845x_spi_open_resource(char *resource_handle, uInt32 *opened_handle)
static int32 ni845x_spi_open_resource(char *resource_handle, uInt32 *opened_handle, enum USB845x_type pid)
{
// NI-845x driver loads the FPGA bitfile at the first time
// which can take couple seconds
if (device_pid == USB8452)
if (pid == USB8452)
msg_pwarn("Opening NI-8452, this might take a while for the first time\n");
int32 tmp = ni845xOpen(resource_handle, opened_handle);
@ -155,14 +155,14 @@ static int32 ni845x_spi_open_resource(char *resource_handle, uInt32 *opened_hand
* @param serial a null terminated string containing the serial number of the specific device or NULL
* @return the 0 on successful completion, negative error code on failure
*/
static int ni845x_spi_open(const char *serial, uInt32 *return_handle)
static int ni845x_spi_open(const char *serial, uInt32 *return_handle, enum USB845x_type *pid)
{
char resource_name[256];
NiHandle device_find_handle;
uInt32 found_devices_count = 0;
int32 tmp = 0;
unsigned int vid, pid, usb_bus;
unsigned int vid, dev_pid, usb_bus;
unsigned long int serial_as_number;
int ret = -1;
@ -182,7 +182,7 @@ static int ni845x_spi_open(const char *serial, uInt32 *return_handle)
// and the DEADBEEF is the serial of the device
if (sscanf(resource_name,
"USB%u::0x%04X::0x%04X::%08lX::RAW",
&usb_bus, &vid, &pid, &serial_as_number) != 4) {
&usb_bus, &vid, &dev_pid, &serial_as_number) != 4) {
// malformed resource string detected
msg_pwarn("Warning: Unable to parse the %s NI-845x resource string.\n",
resource_name);
@ -190,7 +190,7 @@ static int ni845x_spi_open(const char *serial, uInt32 *return_handle)
continue;
}
device_pid = pid;
*pid = dev_pid;
if (!serial || strtoul(serial, NULL, 16) == serial_as_number)
break;
@ -205,7 +205,7 @@ static int ni845x_spi_open(const char *serial, uInt32 *return_handle)
}
if (found_devices_count)
ret = ni845x_spi_open_resource(resource_name, return_handle);
ret = ni845x_spi_open_resource(resource_name, return_handle, *pid);
_close_ret:
tmp = ni845xCloseFindDeviceHandle(device_find_handle);
@ -227,14 +227,16 @@ _close_ret:
*/
static int usb8452_spi_set_io_voltage(uint16_t requested_io_voltage_mV,
uint16_t *set_io_voltage_mV,
enum voltage_coerce_mode coerce_mode)
enum voltage_coerce_mode coerce_mode,
enum USB845x_type pid,
uInt32 device_handle)
{
unsigned int i = 0;
uint8_t selected_voltage_100mV = 0;
uint8_t requested_io_voltage_100mV = 0;
if (device_pid == USB8451) {
io_voltage_in_mV = 3300;
if (pid == USB8451) {
*set_io_voltage_mV = 3300;
msg_pwarn("USB-8451 does not support the changing of the SPI IO voltage\n");
return 0;
}
@ -307,7 +309,7 @@ static int usb8452_spi_set_io_voltage(uint16_t requested_io_voltage_mV,
* @param SCK_freq_in_KHz SCK speed in KHz
* @return
*/
static int ni845x_spi_set_speed(uint16_t SCK_freq_in_KHz)
static int ni845x_spi_set_speed(NiHandle configuration_handle, uint16_t SCK_freq_in_KHz)
{
int32 i = ni845xSpiConfigurationSetClockRate(configuration_handle, SCK_freq_in_KHz);
uInt16 clock_freq_read_KHz;
@ -452,7 +454,9 @@ static int ni845x_spi_io_voltage_check(const struct flashctx *flash)
io_voltage_in_mV / 1000.0f);
if (usb8452_spi_set_io_voltage(flash->chip->voltage.max,
&io_voltage_in_mV,
USE_LOWER)) {
USE_LOWER,
device_pid,
device_handle)) {
msg_perr("Unable to lower the IO voltage below "
"the chip's maximum voltage\n");
return -1;
@ -475,7 +479,9 @@ static int ni845x_spi_io_voltage_check(const struct flashctx *flash)
io_voltage_in_mV / 1000.0f);
if (usb8452_spi_set_io_voltage(flash->chip->voltage.min,
&io_voltage_in_mV,
USE_HIGHER)) {
USE_HIGHER,
device_pid,
device_handle)) {
msg_pwarn("Unable to raise the IO voltage above the chip's "
"minimum voltage\n"
"Flash operations might be unreliable.\n");
@ -596,7 +602,7 @@ static int ni845x_spi_init(const struct programmer_cfg *cfg)
ignore_io_voltage_limits = true;
}
if (ni845x_spi_open(serial_number, &device_handle)) {
if (ni845x_spi_open(serial_number, &device_handle, &device_pid)) {
if (serial_number) {
msg_pinfo("Could not find any connected NI USB-8451/8452 with serialnumber: %s!\n",
serial_number);
@ -620,12 +626,12 @@ static int ni845x_spi_init(const struct programmer_cfg *cfg)
return 1;
}
if (usb8452_spi_set_io_voltage(requested_io_voltage_mV, &io_voltage_in_mV, USE_LOWER) < 0) {
if (usb8452_spi_set_io_voltage(requested_io_voltage_mV, &io_voltage_in_mV, USE_LOWER, device_pid, device_handle) < 0) {
ni845x_spi_shutdown(NULL);
return 1; // no alert here usb8452_spi_set_io_voltage already printed that
}
if (ni845x_spi_set_speed(spi_speed_KHz)) {
if (ni845x_spi_set_speed(configuration_handle, spi_speed_KHz)) {
msg_perr("Unable to set SPI speed\n");
ni845x_spi_shutdown(NULL);
return 1;