From e8b46e15e5b42ab2d5e362c45438bf1900d6819d Mon Sep 17 00:00:00 2001
From: Sylvain Munaut <tnt@246tNt.com>
Date: Wed, 16 Jan 2013 22:57:29 +0100
Subject: fw/l1/tpu: Add function to open multi slot TX TPU window

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
---
 src/target/firmware/include/layer1/tpu_window.h |  1 +
 src/target/firmware/layer1/tpu_window.c         | 45 +++++++++++++++++++++++++
 2 files changed, 46 insertions(+)

diff --git a/src/target/firmware/include/layer1/tpu_window.h b/src/target/firmware/include/layer1/tpu_window.h
index 7b146f12..5c9b9ac8 100644
--- a/src/target/firmware/include/layer1/tpu_window.h
+++ b/src/target/firmware/include/layer1/tpu_window.h
@@ -18,6 +18,7 @@ enum l1_txwin_type {
 void l1s_win_init(void);
 void l1s_rx_win_ctrl(uint16_t arfcn, enum l1_rxwin_type wtype, uint8_t tn_ofs);
 void l1s_tx_win_ctrl(uint16_t arfcn, enum l1_txwin_type wtype, uint8_t pwr, uint8_t tn_ofs);
+void l1s_tx_multi_win_ctrl(uint16_t arfcn, uint8_t pwr, uint8_t tn_ofs, int width);
 
 void tpu_end_scenario(void);
 
diff --git a/src/target/firmware/layer1/tpu_window.c b/src/target/firmware/layer1/tpu_window.c
index f4e76c16..76b4876a 100644
--- a/src/target/firmware/layer1/tpu_window.c
+++ b/src/target/firmware/layer1/tpu_window.c
@@ -168,6 +168,51 @@ void l1s_tx_win_ctrl(uint16_t arfcn, enum l1_txwin_type wtype, uint8_t pwr, uint
 	rffe_mode(gsm_arfcn2band(arfcn), 0);
 }
 
+void l1s_tx_multi_win_ctrl(uint16_t arfcn, uint8_t pwr, uint8_t tn_ofs, int width)
+{
+	uint16_t offset;
+	int wait, i;
+
+	/* TN offset & TA adjust */
+	offset = 28; /* ("+ 32" gives a TA of 1) */
+	offset += L1_BURST_LENGTH_Q * tn_ofs;
+	offset -= l1s.ta << 2;
+
+#ifdef CONFIG_TX_ENABLE
+	/* window open for TRF6151 */
+	trf6151_tx_window(offset, arfcn);
+#endif
+
+	/* Window open for ABB */
+	twl3025_uplink(1, offset);
+
+#ifdef CONFIG_TX_ENABLE
+	/* Window open for RFFE */
+	rffe_mode(gsm_arfcn2band(arfcn), 1);
+#endif
+
+	/* Multi slot int generation */
+	wait = 200;
+
+	for (i=1; i<width; i++) {
+		tpu_enq_wait(wait);
+		tpu_enq_dsp_irq();
+		wait = tx_burst_duration[L1_TXWIN_NB];
+	}
+
+	/* Total width */
+	offset += width * tx_burst_duration[L1_TXWIN_NB] + 2;     // TODO: "+ 2"
+
+	/* Window close for ABB */
+	twl3025_uplink(0, offset);
+
+	/* window close for TRF6151 and RFFE */
+	trf6151_set_mode(TRF6151_IDLE);
+
+	/* Window close for RFFE */
+	rffe_mode(gsm_arfcn2band(arfcn), 0);
+}
+
 void tpu_end_scenario(void)
 {
 	tpu_enq_sleep();
-- 
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