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authorKees Cook <kees+treewide@kernel.org>2026-09-02 15:31:14 -0700
committerKees Cook <kees@kernel.org>2026-09-04 21:37:00 -0700
commit3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d (patch)
treec65086f9bdcd48c6360fb7cb4598bca084da1f32 /drivers/media/dvb-frontends/bsbe1.h
downloadlinux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.tar.gz
linux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.zip
treewide: refresh kmalloc_obj() conversionsgrafted
This is another run of the Coccinelle script for converting kmalloc() family of allocations to kmalloc_obj() via the existing rules in scripts/coccinelle/api/kmalloc_objs.cocci This catches both the set of kmalloc() uses added since the first kmalloc_obj() conversions in v7.0 and adds a large group missed in the first pass due to Coccinelle not interacting well with the cleanup.h scoped_...() family of macros[1]. I worked around this with spatch's "--macro-file" argument to a file with all the scoped_...() macros mapped to Coccinelle's YACFE_ITERATOR[2] as that was the closest viable control flow indicator I could find. Build tested allmodconfig on x86, arm64, arm, loongarch, mips, powerpc, riscv, and s390 with no new warnings. Link: https://lore.kernel.org/lkml/202609021314.8A9C0B8@keescook/ [1] Link: https://github.com/coccinelle/coccinelle/blob/master/standard.h [2] Signed-off-by: Kees Cook <kees+treewide@kernel.org>
Diffstat (limited to 'drivers/media/dvb-frontends/bsbe1.h')
-rw-r--r--drivers/media/dvb-frontends/bsbe1.h89
1 files changed, 89 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/bsbe1.h b/drivers/media/dvb-frontends/bsbe1.h
new file mode 100644
index 000000000..b4b81e1dd
--- /dev/null
+++ b/drivers/media/dvb-frontends/bsbe1.h
@@ -0,0 +1,89 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * bsbe1.h - ALPS BSBE1 tuner support
+ *
+ * the project's page is at https://linuxtv.org
+ */
+
+#ifndef BSBE1_H
+#define BSBE1_H
+
+static u8 alps_bsbe1_inittab[] = {
+ 0x01, 0x15, /* XTAL = 4MHz, VCO = 352 MHz */
+ 0x02, 0x30, /* MCLK = 88 MHz */
+ 0x03, 0x00, /* ACR output 0 */
+ 0x04, 0x7d, /* F22FR = 0x7d, F22 = f_VCO / 128 / 0x7d = 22 kHz */
+ 0x05, 0x05, /* I2CT = 0, SCLT = 1, SDAT = 1 */
+ 0x06, 0x00, /* DAC output 0 */
+ 0x08, 0x40, /* DiSEqC off, LNB power on OP2/LOCK pin on */
+ 0x09, 0x00, /* FIFO */
+ 0x0c, 0x51, /* OP1/OP0 normal, val = 1 (LNB power on) */
+ 0x0d, 0x82, /* DC offset compensation = on, beta_agc1 = 2 */
+ 0x0f, 0x92, /* AGC1R */
+ 0x10, 0x34, /* AGC2O */
+ 0x11, 0x84, /* TLSR */
+ 0x12, 0xb9, /* CFD */
+ 0x15, 0xc9, /* lock detector threshold */
+ 0x28, 0x00, /* out imp: normal, type: parallel, FEC mode: QPSK */
+ 0x33, 0xfc, /* RS control */
+ 0x34, 0x93, /* count viterbi bit errors per 2E18 bytes */
+ 0xff, 0xff
+};
+
+
+static int alps_bsbe1_set_symbol_rate(struct dvb_frontend* fe, u32 srate, u32 ratio)
+{
+ u8 aclk = 0;
+ u8 bclk = 0;
+
+ if (srate < 1500000) { aclk = 0xb7; bclk = 0x47; }
+ else if (srate < 3000000) { aclk = 0xb7; bclk = 0x4b; }
+ else if (srate < 7000000) { aclk = 0xb7; bclk = 0x4f; }
+ else if (srate < 14000000) { aclk = 0xb7; bclk = 0x53; }
+ else if (srate < 30000000) { aclk = 0xb6; bclk = 0x53; }
+ else if (srate < 45000000) { aclk = 0xb4; bclk = 0x51; }
+
+ stv0299_writereg(fe, 0x13, aclk);
+ stv0299_writereg(fe, 0x14, bclk);
+ stv0299_writereg(fe, 0x1f, (ratio >> 16) & 0xff);
+ stv0299_writereg(fe, 0x20, (ratio >> 8) & 0xff);
+ stv0299_writereg(fe, 0x21, (ratio ) & 0xf0);
+
+ return 0;
+}
+
+static int alps_bsbe1_tuner_set_params(struct dvb_frontend *fe)
+{
+ struct dtv_frontend_properties *p = &fe->dtv_property_cache;
+ int ret;
+ u8 data[4];
+ u32 div;
+ struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = data, .len = sizeof(data) };
+ struct i2c_adapter *i2c = fe->tuner_priv;
+
+ if ((p->frequency < 950000) || (p->frequency > 2150000))
+ return -EINVAL;
+
+ div = p->frequency / 1000;
+ data[0] = (div >> 8) & 0x7f;
+ data[1] = div & 0xff;
+ data[2] = 0x80 | ((div & 0x18000) >> 10) | 0x1;
+ data[3] = 0xe0;
+
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 1);
+ ret = i2c_transfer(i2c, &msg, 1);
+ return (ret != 1) ? -EIO : 0;
+}
+
+static struct stv0299_config alps_bsbe1_config = {
+ .demod_address = 0x68,
+ .inittab = alps_bsbe1_inittab,
+ .mclk = 88000000UL,
+ .invert = 1,
+ .skip_reinit = 0,
+ .min_delay_ms = 100,
+ .set_symbol_rate = alps_bsbe1_set_symbol_rate,
+};
+
+#endif