New patch to review for coreboot: arch/x86/acpigen: Add more functions to ACPIGEN library

[Furquan Shaikh]

Furquan Shaikh ([e-mail]) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/17088

-gerrit

commit 16475d7ac9974f9bb65c8ee0e7c7d8f97e97bedc
Author: Furquan Shaikh 
Date:   Fri Oct 21 16:21:07 2016 -0700

arch/x86/acpigen: Add more functions to ACPIGEN library

1. If (LEqual (Op1, Op2))
    2. ToBuffer (src, dst)
    3. ToInteger (src, dst)
    4. Buffer (n) { op1, op2 .... }
    5. Return ( )

BUG=chrome-os-partner:57846

Change-Id: I24fe647c690b2dd4849f0c53b2672ac7a2caa2de
    Signed-off-by: Furquan Shaikh 
---
 src/arch/x86/acpigen.c              | 53 +++++++++++++++++++++++++++++++++++++
 src/arch/x86/include/arch/acpigen.h | 10 +++++++
 2 files changed, 63 insertions(+)

diff --git a/src/arch/x86/acpigen.c b/src/arch/x86/acpigen.c
index 44c77cc..e42b620 100644
--- a/src/arch/x86/acpigen.c
+++ b/src/arch/x86/acpigen.c
@@ -971,12 +971,65 @@ void acpigen_write_if_and(uint8_t arg1, uint8_t arg2)
    acpigen_emit_byte(arg2);
 }

+void acpigen_write_if_lequal(uint8_t arg1, uint8_t arg2)
+{
+	acpigen_write_if();
+	acpigen_emit_byte(LEQUAL_OP);
+	acpigen_emit_byte(arg1);
+	acpigen_emit_byte(arg2);
+}
+
 void acpigen_write_else(void)
 {
    acpigen_emit_byte(ELSE_OP);
    acpigen_write_len_f();
 }

+void acpigen_write_to_buffer(uint8_t src, uint8_t dst)
+{
+	acpigen_emit_byte(TO_BUFFER_OP);
+	acpigen_emit_byte(src);
+	acpigen_emit_byte(dst);
+}
+
+void acpigen_write_to_integer(uint8_t src, uint8_t dst)
+{
+	acpigen_emit_byte(TO_INTEGER_OP);
+	acpigen_emit_byte(src);
+	acpigen_emit_byte(dst);
+}
+
+void acpigen_write_byte_buffer(uint8_t *arr, uint8_t size)
+{
+	uint8_t i;
+
+	acpigen_emit_byte(BUFFER_OP);
+	acpigen_write_len_f();
+	acpigen_emit_byte(size);
+
+	for (i = 0; i < size; i++)
+		acpigen_emit_byte(arr[i]);
+
+	acpigen_pop_len();
+}
+
+void acpigen_write_return_byte_buffer(uint8_t *arr, uint8_t size)
+{
+	acpigen_emit_byte(RETURN_OP);
+	acpigen_write_byte_buffer(arr, size);
+}
+
+void acpigen_write_return_singleton_buffer(uint8_t arg)
+{
+	acpigen_write_return_byte_buffer(&arg, 1);
+}
+
+void acpigen_write_return_byte(uint8_t arg)
+{
+	acpigen_emit_byte(RETURN_OP);
+	acpigen_write_byte(arg);
+}
+
 /* Soc-implemented functions -- weak definitions. */
 int __attribute__((weak)) acpigen_soc_read_rx_gpio(unsigned gpio_num)
 {
diff --git a/src/arch/x86/include/arch/acpigen.h b/src/arch/x86/include/arch/acpigen.h
index 8ac8f48..aeb61d3 100644
--- a/src/arch/x86/include/arch/acpigen.h
+++ b/src/arch/x86/include/arch/acpigen.h
@@ -75,6 +75,9 @@ enum {
    AND_OP			= 0x7B,
    OR_OP			= 0x7D,
    NOT_OP			= 0x80,
+	LEQUAL_OP		= 0x93,
+	TO_BUFFER_OP		= 0x96,
+	TO_INTEGER_OP		= 0x99,
    IF_OP			= 0xA0,
    ELSE_OP		= 0xA1,
    RETURN_OP		= 0xA4,
@@ -156,7 +159,14 @@ void acpigen_write_debug_integer(uint64_t val);
 void acpigen_write_debug_op(uint8_t op);
 void acpigen_write_if(void);
 void acpigen_write_if_and(uint8_t arg1, uint8_t arg2);
+void acpigen_write_if_lequal(uint8_t arg1, uint8_t arg2);
 void acpigen_write_else(void);
+void acpigen_write_to_buffer(uint8_t src, uint8_t dst);
+void acpigen_write_to_integer(uint8_t src, uint8_t dst);
+void acpigen_write_byte_buffer(uint8_t *arr, uint8_t size);
+void acpigen_write_return_byte_buffer(uint8_t *arr, uint8_t size);
+void acpigen_write_return_singleton_buffer(uint8_t arg);
+void acpigen_write_return_byte(uint8_t arg);

int get_cst_entries(acpi_cstate_t **);