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[uart] Allow for dynamically registered 16550 UARTs

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Use the generic UART driver-private data pointer, rather than
embedding the generic UART within the 16550 UART structure.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2025-06-21 23:11:56 +01:00
parent 71b4bfb6b2
commit cca1cfd49e
5 changed files with 21 additions and 29 deletions
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src/drivers/uart/ns16550.c
+5 -10
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@@ -47,8 +47,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
* @v data Data
*/
static void ns16550_transmit ( struct uart *uart, uint8_t data ) {
struct ns16550_uart *ns16550 =
container_of ( uart, struct ns16550_uart, uart );
struct ns16550_uart *ns16550 = uart->priv;
unsigned int i;
uint8_t lsr;
@@ -71,8 +70,7 @@ static void ns16550_transmit ( struct uart *uart, uint8_t data ) {
* @ret ready Data is ready
*/
static int ns16550_data_ready ( struct uart *uart ) {
struct ns16550_uart *ns16550 =
container_of ( uart, struct ns16550_uart, uart );
struct ns16550_uart *ns16550 = uart->priv;
uint8_t lsr;
/* Check for receive data ready */
@@ -87,8 +85,7 @@ static int ns16550_data_ready ( struct uart *uart ) {
* @ret data Data
*/
static uint8_t ns16550_receive ( struct uart *uart ) {
struct ns16550_uart *ns16550 =
container_of ( uart, struct ns16550_uart, uart );
struct ns16550_uart *ns16550 = uart->priv;
uint8_t rbr;
/* Receive byte */
@@ -102,8 +99,7 @@ static uint8_t ns16550_receive ( struct uart *uart ) {
* @v uart UART
*/
static void ns16550_flush ( struct uart *uart ) {
struct ns16550_uart *ns16550 =
container_of ( uart, struct ns16550_uart, uart );
struct ns16550_uart *ns16550 = uart->priv;
unsigned int i;
uint8_t lsr;
@@ -123,8 +119,7 @@ static void ns16550_flush ( struct uart *uart ) {
* @ret rc Return status code
*/
static int ns16550_init ( struct uart *uart, unsigned int baud ) {
struct ns16550_uart *ns16550 =
container_of ( uart, struct ns16550_uart, uart );
struct ns16550_uart *ns16550 = uart->priv;
uint8_t dlm;
uint8_t dll;